阅读说明：本技术 一种沥青混凝土公路改扩建路基施工工艺 (Construction process for reconstructing and expanding roadbed of asphalt concrete highway ) 是由 荀潇 石惠 王雨鑫 曾伟 樊孟杰 张莉 黄珂 杨俊骏 陈启 于 2021-07-12 设计创作，主要内容包括：本发明公开了一种沥青混凝土公路改扩建路基施工工艺,包括以下步骤：步骤1：对老路基边侧进行压实度检测,判断老路基边侧压实度是否符合预设标准；步骤2：当符合预设标准时,仅对老路基边侧杂物进行清理,不符合标准时,对不符合标准的老路基边侧进行粉碎、平整、清洁预处理以及边侧杂物进行清理；步骤3：对预改扩建区域进行平整、清洁预处理；步骤4：对步骤2、步骤3处理过的区域进行铺设；步骤5：对步骤4铺设的材料进行平整处理,使新、老路基保持同一水平高度；步骤6：对新铺设的路基的压实度、与老路基的高度是否一致进行检查。本发明解决了现有的道路改造技术直接扩建,不对老路基边侧进行处理,造成的新老路基连接强度不够的问题。(The invention discloses a construction process for reconstructing and expanding a roadbed of an asphalt concrete highway, which comprises the following steps: step 1: carrying out compaction degree detection on the side of the old roadbed, and judging whether the compaction degree of the side of the old roadbed meets a preset standard or not; step 2: when the standard is met, only sundries at the side of the old roadbed are cleaned, and when the standard is not met, the side of the old roadbed which does not meet the standard is crushed, leveled and cleaned, and the sundries at the side are cleaned; and step 3: carrying out leveling and cleaning pretreatment on the pre-reconstruction extension area; and 4, step 4: paving the areas processed in the step 2 and the step 3; and 5: leveling the material laid in the step 4 to keep the new and old road foundations at the same horizontal height; step 6: and (5) checking whether the compaction degree of the newly laid roadbed is consistent with the height of the old roadbed. The invention solves the problem that the connection strength of the new and old roadbed is insufficient because the existing road reconstruction technology is directly expanded and the side of the old roadbed is not treated.)

1. A construction process for reconstructing and expanding a roadbed of an asphalt concrete highway is characterized by comprising the following steps of: the method comprises the following steps:

step 1: carrying out compaction degree detection on the side of the old roadbed, and judging whether the compaction degree of the side of the old roadbed meets a preset standard or not;

step 2: when the degree of compaction of the side of the old roadbed meets the preset standard, only sundries on the side of the old roadbed are cleaned, and when the degree of compaction of the side of the old roadbed does not meet the standard, the side of the old roadbed which does not meet the standard is crushed and flattened and the sundries on the side are cleaned;

and step 3: carrying out leveling and cleaning pretreatment on the pre-reconstruction extension area;

and 4, step 4: paving the areas processed in the step 2 and the step 3;

and 5: leveling the material laid in the step 4 to keep the newly laid roadbed and the old roadbed at the same horizontal height;

step 6: and (5) checking whether the compaction degree of the newly laid roadbed is consistent with the height of the old roadbed.

2. The asphalt concrete highway reconstruction and expansion roadbed construction process according to claim 1, which is characterized in that: step 2, step 3, step 4, step 5 are all based on asphalt concrete highway reconstruction extension device and go on, asphalt concrete highway reconstruction extension device includes:

the device comprises a shell (1), wherein a traction device is fixed below the shell (1), and the traction device comprises a traction wheel (19);

still be provided with reducing mechanism, cleaning device, unloader, level device in casing (1), reducing mechanism, cleaning device, unloader, level device are arranged from the right side to left side in proper order.

3. The asphalt concrete highway reconstruction and expansion roadbed construction process according to claim 2, wherein the process comprises the following steps: the cleaning device comprises a sundries storage box (7), a first motor (8), a driving bevel gear (9), a driven bevel gear (10), a transmission shaft (11), a cleaning head (12) and a cleaning scraper (18);

the sundries storage box (7) is fixed inside the shell (1), the cleaning scraper (18) is fixed below the shell (1), a semi-closed area enclosed by the cleaning scraper (18) and the lower surface of the shell (1) is communicated with the sundries storage box (7), the first motor (8) is fixed on the upper surface of the sundries storage box (7), the output end of the first motor (8) is fixed with the driving bevel gear (9), the driven bevel gear (10) is fixed with the upper end of the transmission shaft (11), the driving bevel gear (9) is meshed with the driven bevel gear (10), the lower end of the transmission shaft (11) penetrates out of the lower surface of the shell (1), and the lower end of the transmission shaft (11) is fixed with the cleaning head (12), and the cleaning head (12) is positioned in a semi-closed area formed by the cleaning scraper (18) and the lower surface of the shell (1).

4. The asphalt concrete highway reconstruction and expansion roadbed construction process according to claim 3, wherein the process comprises the following steps: the crushing device comprises:

the grinding machine comprises a first connecting rod (201), a second driving belt wheel (202), a second belt (203), a second driven belt wheel (204), a first gear (205), a second gear (206), a rotating shaft (207), a first hinged joint (208), a clamping block (209), a second hinged joint (210), a second connecting rod (211), a third hinged joint (212), a third connecting rod (213), a fourth hinged joint (214), a supporting rod (215), a sliding groove (216), a sliding block (217), a fourth connecting rod (218), a grinding drill bit (219), a first limiting block (220) and a tension spring (221);

the second driving pulley (202) is fixed on the transmission shaft (11), the second driving pulley (202) is connected with the second driven pulley (204) through the second belt (203), the second driven pulley (204) is fixed with the first gear (205), and the first gear (205) is meshed with the second gear (206);

the second gear (206) is connected with the inner wall of the shell (1) through the rotating shaft (207), the clamping block (209) is fixed at the surface edge of the second gear (206), the relative position of the surface edge of the second gear (206) and the fixed position of the clamping block (209) is hinged to one end of the first connecting rod (201) through the first hinge joint (208), the other end of the first connecting rod (201) is hinged to one end of the second connecting rod (211) through the second hinge joint (210), the second hinge joint (210) is located outside the circumference of the second gear (206), and the front end of the clamping block (209) is located in front of the position of the first connecting rod (201) and behind the position of the second connecting rod (211);

the other end of the second connecting rod (211) is hinged to the third connecting rod (213) through the third hinged joint (212), the third connecting rod (213) is provided with the sliding groove (216), the sliding block (217) can slide in the sliding groove (216), and the sliding block (217) is hinged to the fourth connecting rod (218);

the supporting rod (215) is fixed on the lower surface inside the shell (1), and the upper end of the supporting rod (215) is hinged with the middle position of the third connecting rod (213) through the fourth hinge joint (214);

the lower end of the fourth connecting rod (218) is fixed with the crushing drill bit (219), the upper end of the crushing drill bit (219) is fixed with the first limiting block (220), the tension spring (221) is sleeved on the crushing drill bit (219), one end of the tension spring (221) is fixed with the first limiting block (220), the other end of the tension spring is fixed with the lower surface of the shell (1), and the lower end of the crushing drill bit (219) penetrates through the lower surface of the shell (1).

5. The asphalt concrete highway reconstruction and expansion roadbed construction process according to claim 2, wherein the process comprises the following steps: the blanking device comprises a blanking groove (2), a material box (3), a communicating pipe (4), a blanking switch (5) and a blanking opening (6);

lower silo (2) with casing (1) is fixed, lower silo (2) suitable for reading is located outside casing (1) upper surface, lower silo (2) suitable for reading with workbin (3) are connected, workbin (3) below is passed through intercommunication pipe (4) feed through to switch (5), switch (5) with be located casing (1) outer and with casing (1) is fixed feed opening (6) are connected.

6. The asphalt concrete highway reconstruction and expansion roadbed construction process according to claim 2, wherein the process comprises the following steps: the leveling device comprises a second motor (13), a first belt (14), a leveling wheel (15), a first driving belt wheel (16), a first driven belt wheel (17) and a fixed shaft (20);

second motor (13) are fixed in casing (1) lower surface, second motor (13) output end is fixed with first driving pulley (16), first driving pulley (16) pass through first belt (14) with first driven pulley (17) are connected, first driven pulley (17) are fixed in on fixed axle (20), fixed axle (20) both ends rotate connect in casing (1), still be fixed with on fixed axle (20) level and smooth wheel (15), level and smooth wheel (15) lower edge surpasss casing (1) lower surface.

7. The asphalt concrete highway reconstruction and expansion roadbed construction process according to claim 6, wherein the process comprises the following steps: fixed axle (20) with still be provided with between casing (1) and level the wheel vibrations and from cleaning device, level the wheel vibrations and include from cleaning device:

the spring clamping device comprises a protective shell (301), a first spring (302), a first clamping block (303), a second limiting block (304), a connecting shaft (305), a second spring (306), a second clamping block (307) and a clamping protrusion (308);

the protective shell (301) is fixed with the shell (1), the front end of the fixed shaft (20) penetrates through the protective shell (301) and is fixed with the rear end of the second clamping block (307), the second clamping block (307) is located in the protective shell (301), the second limiting block (304) is arranged on the periphery of the second clamping block (307), and the second limiting block (304) is fixed on the shell (1);

the front end of the second clamping block (307) is clamped with the first clamping block (303), the thickness of the clamping protrusion (308) on the first clamping block (303) is larger than that of the second clamping block (307), and the part of the clamping protrusion (308) exceeding the second clamping block (307) is contacted with the second limiting block (304);

the connecting shaft (305) is fixed at one end, away from the second clamping block (307), of the first clamping block (303), the first spring (302) is sleeved outside the connecting shaft (305), one end of the first spring (302) is in contact with the first clamping block (303), and the other end of the first spring is in contact with the inner wall of the protective shell (301);

a second spring (306) is arranged between the rear end of the leveling wheel (15) and the shell (1), the second spring (306) is sleeved on the fixed shaft (20), and two ends of the second spring (306) are respectively connected with the leveling wheel (15) and the shell (1);

the elastic force of the first spring (302) is greater than the elastic force of the second spring (306).

8. The asphalt concrete highway reconstruction and expansion roadbed construction process according to claim 6, wherein the process comprises the following steps: the life of the first belt (14) is calculable by a belt life warning device comprising:

the first alarm is positioned on the shell (1);

a timer for recording the length of time the first belt (14) has been used;

first controller, first controller respectively with timer and first alarm electric connection, first controller is based on the timer control first alarm work includes:

the first controller calculates a minimum life of the first belt (14) based on the following equation:

wherein S is_min-is the minimum life of the first belt (14), -Y is the actual load of the first belt (14), -Z is the design load of the first belt (14), -s is the life index of the first belt (14), - δ is the wear rate index of the first belt (14), - γ is the aging factor of the first belt (14);

and when the detection value of the timer is greater than or equal to the calculated minimum service life of the first belt (14), the first controller controls the first alarm to give an alarm.

9. The asphalt concrete highway reconstruction and expansion roadbed construction process according to claim 3, wherein the process comprises the following steps: the bevel gear transmission wear index calculation method further comprises a calculation detection device, wherein the calculation detection device is used for calculating an index of influence of bevel gear transmission wear on transmission efficiency, and the calculation detection device comprises:

the force sensor is arranged between the driving bevel gear (9) and the driven bevel gear (10) and used for detecting the pressure between the driving bevel gear (9) and the driven bevel gear (10);

the torque sensor is arranged at the output end of the first motor (8) and is used for detecting the torque at the output end of the first motor (8);

the rotating speed sensor is arranged at the output end of the first motor (8) and is used for detecting the rotating speed of the output end of the first motor (8);

a power sensor arranged on the first motor (8) and used for detecting the power of the first motor (8);

the second alarm is positioned on the shell (1);

the second controller, the second controller respectively with force sensor, torque sensor, speed sensor, power sensor and second alarm electric connection, the second controller is based on force sensor, torque sensor, speed sensor, power sensor control the work of second alarm includes:

step 1: the second controller obtains the transmission wear indexes of the driving bevel gear (9) and the driven bevel gear (10) based on the force sensor, the torque sensor and a formula (1):

wherein A is the wear index of the transmission of the driving bevel gear (9) and the driven bevel gear (10), and theta₁Is the pressure angle, theta, of the drive bevel gear (9)₂Is the pressure angle, d, of the driven bevel gear (10)₁Is the pitch diameter, d, of the drive bevel gear (9)₂Mu is the pitch circle diameter of the driven bevel gear (10), mu is the friction coefficient between the driving bevel gear (9) and the driven bevel gear (10), T is the torque of the output end of the first motor (8) detected by the torque sensor, F is the pressure between the driving bevel gear (9) and the driven bevel gear (10) detected by the force sensor, sigma is the yield strength of the materials of the driving bevel gear (9) and the driven bevel gear (10), sin is sine, and cos is cosine;

step 2: the second controller calculates the transmission efficiency influence indexes of the driving bevel gear (9) and the driven bevel gear (10) based on the rotating speed sensor, the power sensor, the calculation result of the formula (1) and the formula (2):

wherein B is the transmission efficiency influence index of the driving bevel gear (9) and the driven bevel gear (10), and z is₁Is the number of teeth, z, of the drive bevel gear (9)₂The number of teeth of the driven bevel gear (10),is the shaft intersection angle h of the driving bevel gear (9) and the driven bevel gear (10)₁Is the crest factor, h, of the drive bevel gear (9)₂Is the tooth crest coefficient of the driven bevel gear (10), n is the rotating speed of the output end of the first motor (8) detected by the rotating speed sensor, and e isA natural constant, P is the power of the first motor (8) detected by the power sensor, and pi is a circumferential rate;

and when the transmission efficiency influence indexes of the driving bevel gear (9) and the driven bevel gear (10) exceed a preset reference value range, the second controller controls a second alarm to give an alarm.

Technical Field

The invention relates to the technical field of road maintenance, in particular to a construction process for reconstructing and expanding a roadbed of an asphalt concrete highway.

Background

With the rapid development of socioeconomic in China, most of the functions of the existing roads can not meet the increasing traffic demand of the society, so that the original roads are imperatively upgraded and modified. The key of the engineering reconstruction is the widening of the highway subgrade, namely the design and the construction. The existing road reconstruction technology is mostly direct extension, and the side of an old roadbed is not treated, so that the connection strength of a new roadbed and the old roadbed is easy to be insufficient.

Disclosure of Invention

In order to solve the problems of the background art, the present invention provides the following technical solutions.

A construction process for reconstructing and expanding a roadbed of an asphalt concrete highway comprises the following steps:

step 1: carrying out compaction degree detection on the side of the old roadbed, and judging whether the compaction degree of the side of the old roadbed meets a preset standard or not;

step 2: when the degree of compaction of the side of the old roadbed meets the preset standard, only sundries on the side of the old roadbed are cleaned, and when the degree of compaction of the side of the old roadbed does not meet the standard, the side of the old roadbed which does not meet the standard is crushed and flattened and the sundries on the side are cleaned;

and step 3: carrying out leveling and cleaning pretreatment on the pre-reconstruction extension area;

and 4, step 4: paving the areas processed in the step 2 and the step 3;

and 5: leveling the material laid in the step 4 to keep the newly laid roadbed and the old roadbed at the same horizontal height;

step 6: and (5) checking whether the compaction degree of the newly laid roadbed is consistent with the height of the old roadbed.

Preferably, step 2, step 3, step 4, and step 5 are performed based on an asphalt concrete highway reconstruction and extension device, and the asphalt concrete highway reconstruction and extension device includes:

the traction device is fixed below the shell and comprises a traction wheel;

still be provided with reducing mechanism, cleaning device, unloader, level and smooth device in the casing, reducing mechanism, cleaning device, unloader, level and smooth device are arranged from right side to left side in proper order.

Preferably, the cleaning device comprises a sundries storage box, a first motor, a driving bevel gear, a driven bevel gear, a transmission shaft, a cleaning head and a cleaning scraper;

the utility model discloses a cleaning device for a cleaning machine, including debris bin, clean scraper blade, drive bevel gear, transmission shaft, drive bevel gear, clean head, clean scraper blade, the semi-enclosed region is located.

Preferably, the crushing apparatus includes:

the crushing device comprises a first connecting rod, a second driving belt wheel, a second belt, a second driven belt wheel, a first gear, a second gear, a rotating shaft, a first hinge joint, a clamping block, a second hinge joint, a second connecting rod, a third hinge joint, a third connecting rod, a fourth hinge joint, a supporting rod, a sliding chute, a sliding block, a fourth connecting rod, a crushing drill bit, a first limiting block and a tension spring;

the second driving pulley is fixed on the transmission shaft, the second driving pulley is connected with the second driven pulley through the second belt, the second driven pulley is fixed with the first gear, and the first gear is meshed with the second gear;

the second gear is connected with the inner wall of the shell through the rotating shaft, the edge of the surface of the second gear is fixedly provided with the clamping block, the position of the edge of the surface of the second gear, which is opposite to the fixed position of the clamping block, is hinged to one end of the first connecting rod through the first hinge joint, the other end of the first connecting rod is hinged to one end of the second connecting rod through the second hinge joint, the second hinge joint is positioned outside the circumference of the second gear, and the front end of the clamping block is positioned in front of the first connecting rod and behind the second connecting rod;

the other end of the second connecting rod is hinged with the third connecting rod through the third hinged joint, the third connecting rod is provided with the sliding groove, the sliding block can slide in the sliding groove, and the sliding block is hinged with the fourth connecting rod;

the supporting rod is fixed on the lower surface of the inner part of the shell, and the upper end of the supporting rod is hinged with the middle part of the third connecting rod through the fourth hinge joint;

the lower end of the fourth connecting rod is fixed with the crushing drill bit, the upper end of the crushing drill bit is fixed with the first limiting block, the tension spring is sleeved on the crushing drill bit, one end of the tension spring is fixed with the first limiting block, the other end of the tension spring is fixed with the lower surface of the shell, and the lower end of the crushing drill bit penetrates through the lower surface of the shell.

Preferably, the blanking device comprises a blanking groove, a material box, a communicating pipe, a blanking switch and a blanking port;

the feed trough with the casing is fixed, the feed trough upper shed is located outside the casing upper surface, the feed trough lower shed with the workbin is connected, the workbin below passes through the communicating pipe intercommunication extremely the switch, the switch with be located outside the casing and with the casing is fixed the feed trough is connected.

Preferably, the leveling device comprises a second motor, a first belt, a leveling wheel, a first driving pulley, a first driven pulley and a fixed shaft;

the second motor is fixed in the casing lower surface, second motor output end is fixed with first driving pulley, first driving pulley passes through first belt with first driven pulleys is connected, first driven pulleys is fixed in on the fixed axle, the fixed axle both ends rotate connect in the casing, still be fixed with on the fixed axle level the wheel, level the wheel lower edge and surpass the casing lower surface.

Preferably, the fixed axle with still be provided with between the casing and smooth wheel vibrations self-cleaning device, smooth wheel vibrations self-cleaning device includes:

the clamping device comprises a protective shell, a first spring, a first clamping block, a second limiting block, a connecting shaft, a second spring, a second clamping block and a clamping protrusion;

the protective shell is fixed with the shell, the front end of the fixed shaft penetrates through the protective shell and is fixed with the rear end of the second clamping block, the second clamping block is located in the protective shell, the second limiting block is arranged on the periphery of the second clamping block, and the second limiting block is fixed on the shell;

the front end of the second clamping block is clamped with the first clamping block, the thickness of the clamping protrusion on the first clamping block is larger than that of the second clamping block, and the part of the clamping protrusion, which exceeds the second clamping block, is contacted with the second limiting block;

the connecting shaft is fixed at one end, far away from the second clamping block, of the first clamping block, the first spring is sleeved outside the connecting shaft, one end of the first spring is in contact with the first clamping block, and the other end of the first spring is in contact with the inner wall of the protective shell;

a second spring is arranged between the rear end of the leveling wheel and the shell, the second spring is sleeved on the fixed shaft, and two ends of the second spring are respectively connected with the leveling wheel and the shell;

the elastic force of the first spring is greater than the elastic force of the second spring.

Preferably, the life of the first belt may be calculated by a belt life warning device, which includes:

the first alarm is positioned on the shell;

a timer for recording the used time of the first belt;

first controller, first controller respectively with timer and first alarm electric connection, first controller is based on the timer control first alarm work includes:

the first controller calculates a minimum life of the first belt based on the following equation:

wherein S is_minIs the minimum life of the first belt, Y is the actual load of the first belt, Z is the design load of the first belt, s is the life index of the first belt, δ is the wear rate index of the first belt, γ is the aging factor of the first belt;

and when the detection value of the timer is greater than or equal to the calculated minimum service life of the first belt, the first controller controls the first alarm to give an alarm.

Preferably, the bevel gear transmission device further comprises a calculation and detection device for calculating an index of the influence of bevel gear transmission wear on transmission efficiency, wherein the calculation and detection device comprises:

the force sensor is arranged between the driving bevel gear and the driven bevel gear and used for detecting the pressure between the driving bevel gear and the driven bevel gear;

the torque sensor is arranged at the output end of the first motor and used for detecting the torque of the output end of the first motor;

the rotating speed sensor is arranged at the output end of the first motor and used for detecting the rotating speed of the output end of the first motor;

the power sensor is arranged on the first motor and used for detecting the power of the first motor;

the second alarm is positioned on the shell;

the second controller, the second controller respectively with force sensor, torque sensor, speed sensor, power sensor and second alarm electric connection, the second controller is based on force sensor, torque sensor, speed sensor, power sensor control the work of second alarm includes:

step 1: the second controller obtains the transmission wear indexes of the driving bevel gear and the driven bevel gear based on the force sensor, the torque sensor and a formula (1):

wherein A is the wear index of the transmission of the driving bevel gear and the driven bevel gear, and theta₁Is the pressure angle, θ, of the drive bevel gear₂Is the pressure angle of the driven bevel gear, d₁Is the pitch diameter of the drive bevel gear, d₂The pitch circle diameter of the driven bevel gear is shown, mu is the friction coefficient between the driving bevel gear and the driven bevel gear, T is the torque of the output end of the first motor detected by the torque sensor, F is the pressure between the driving bevel gear and the driven bevel gear detected by the force sensor, sigma is the yield strength of the materials of the driving bevel gear and the driven bevel gear, sin is sine, and cos is cosine;

step 2: the second controller calculates the transmission efficiency influence indexes of the driving bevel gear and the driven bevel gear based on the rotating speed sensor, the power sensor, the calculation result of the formula (1) and the formula (2):

wherein B is the transmission efficiency influence index of the driving bevel gear and the driven bevel gear, z₁The number of teeth of the drive bevel gear, z₂The number of teeth of the driven bevel gear,is the shaft angle h of the driving bevel gear and the driven bevel gear₁Is the tooth crest coefficient, h, of the drive bevel gear₂The addendum coefficient of the driven bevel gear is obtained, n is the rotating speed of the output end of the first motor detected by the rotating speed sensor, e is a natural constant, P is the power of the first motor detected by the power sensor, and pi is the circumferential rate;

and when the transmission efficiency influence indexes of the driving bevel gear and the driven bevel gear exceed a preset reference value range, the second controller controls a second alarm to give an alarm.

Drawings

FIG. 1 is a process flow diagram of the present invention;

FIG. 2 is a schematic view of the main structure of the present invention;

FIG. 3 is a schematic view of the crushing apparatus according to the present invention;

FIG. 4 is an elevated schematic view of a comminuting bit of the comminution apparatus of the present invention;

FIG. 5 is a schematic view of the drop of the crushing bit of the crushing apparatus of the present invention;

FIG. 6 is a schematic structural view of a vibration self-cleaning device for a leveling wheel according to the present invention;

fig. 7 is a schematic structural view of a clamping block of the vibration self-cleaning device for the leveling wheel of the present invention.

In the figure: 1. a housing; 2. a discharging groove; 3. a material box; 4. a communicating pipe; 5. a blanking switch; 6. a feeding port; 7. a sundries storage box; 8. a first motor; 9. a drive bevel gear; 10. a driven bevel gear; 11. a drive shaft; 12. a cleaning head; 13. a second motor; 14. a first belt; 15. leveling wheels; 16. a first driving pulley; 17. a first driven pulley; 18. a cleaning blade; 19. a traction wheel; 20. a fixed shaft; 201. a first link; 202. a second driving pulley; 203. a second belt; 204. a second driven pulley; 205. a first gear; 206. a second gear; 207. a rotating shaft; 208. a first hinge joint; 209. a clamping block; 210. a second hinge joint; 211. a second link; 212. a third hinge joint; 213. a third link; 214. a fourth hinge joint; 215. a support bar; 216. a chute; 217. a slider; 218. a fourth link; 219. a crushing drill bit; 220. a first stopper; 221. a tension spring; 301. a protective shell; 302. a first spring; 303. a first clamping block; 304. a second limiting block; 305. a connecting shaft; 306. a second spring; 307. a second clamping block; 308. and a clamping protrusion.

Detailed Description

The description of the present invention as to "first", "second", etc. is for descriptive purposes only, and not for purposes of particular ordinal or sequential meaning, nor for limitations, and is intended to distinguish between components or operations that are described in the same technical language, and is not intended to indicate or imply relative importance or imply the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.

Example 1

Referring to fig. 1-2, an embodiment of the present invention is shown: a construction process for reconstructing and expanding a roadbed of an asphalt concrete highway comprises the following steps:

step 1: carrying out compaction degree detection on the side of the old roadbed, and judging whether the compaction degree of the side of the old roadbed meets a preset standard or not;

step 2: when the degree of compaction of the side of the old roadbed meets the preset standard, only sundries on the side of the old roadbed are cleaned, and when the degree of compaction of the side of the old roadbed does not meet the standard, the side of the old roadbed which does not meet the standard is crushed and flattened and the sundries on the side are cleaned;

and step 3: carrying out leveling and cleaning pretreatment on the pre-reconstruction extension area;

and 4, step 4: paving the areas processed in the step 2 and the step 3; aiming at the step 2, specifically, re-paving the edge side of the old roadbed of which the compaction degree of the edge side of the old roadbed does not meet the standard;

and 5: leveling the material laid in the step 4 to keep the newly laid roadbed and the old roadbed at the same horizontal height;

step 6: and (5) checking whether the compaction degree of the newly laid roadbed is consistent with the height of the old roadbed.

Preferably, a cutting ring method can be adopted for measuring the compaction degree of the new roadbed and the old roadbed, the compaction degree is one of key indexes for detecting the construction quality of the roadbed and the pavement, the density condition after on-site compaction is represented, and the higher the compaction degree is, the higher the density is, and the better the overall performance of the material is. The cutting ring method is to cut a sample by a cutting ring with known mass and volume, the mass of the cutting ring is subtracted after weighing to obtain the mass of the sample, the volume of the cutting ring is the volume of the sample, the density of the sample can be obtained, and the compactness of the sample can be further obtained. Compaction detection may also be referred to specifically as 201911183057.9;

preferably, step 2, step 3, step 4, and step 5 are performed based on an asphalt concrete highway reconstruction and extension device, and the asphalt concrete highway reconstruction and extension device includes:

the device comprises a shell 1, wherein a traction device is fixed below the shell 1 and comprises a traction wheel 19;

still be provided with reducing mechanism, cleaning device, unloader, level device in the casing 1, reducing mechanism, cleaning device, unloader, level device are arranged from right side to left side in proper order.

The working principle and the beneficial effects of the technical scheme are as follows: the invention relates to an asphalt concrete road reconstruction and extension device, which utilizes a crushing device to crush the side of an old roadbed which is detected to be not in accordance with the national standard (road roadbed construction technical specification JTG/T3610-2019 or can refer to 201911183057.9), utilizes a cleaning device to clean/clean sundries on the side of the old roadbed and a pre-reconstruction and extension area, utilizes a blanking device to lay asphalt concrete in the area, then utilizes a flattening device to flatten the asphalt concrete laid by the blanking device, and finally checks whether the strength of a newly laid roadbed is consistent with the height of the old roadbed or not, thereby ensuring the reliability of the newly laid roadbed, and the asphalt concrete road reconstruction and extension device also has a traction device, thereby leading the invention to advance, solving the problems that the existing road reconstruction technology is directly expanded, the side of the old roadbed is not treated, the connection strength of the new and old road beds is not enough.

Example 2

Referring to fig. 2 to 5, on the basis of the above embodiment 1, the crushing apparatus includes:

a first connecting rod 201, a second driving pulley 202, a second belt 203, a second driven pulley 204, a first gear 205, a second gear 206, a rotating shaft 207, a first hinge joint 208, a fixture 209, a second hinge joint 210, a second connecting rod 211, a third hinge joint 212, a third connecting rod 213, a fourth hinge joint 214, a supporting rod 215, a sliding groove 216, a sliding block 217, a fourth connecting rod 218, a crushing drill 219, a first limiting block 220 and a tension spring 221;

the second driving pulley 202 is fixed to the transmission shaft 11, the second driving pulley 202 is connected to the second driven pulley 204 through the second belt 203, the second driven pulley 204 is fixed to the first gear 205, and the first gear 205 is engaged with the second gear 206;

the second gear 206 is connected to the inner wall of the housing 1 through the rotating shaft 207, the latch 209 is fixed at the edge of the surface of the second gear 206, the position of the edge of the surface of the second gear 206 opposite to the position where the latch 209 is fixed is hinged to one end of the first link 201 through the first hinge joint 208, the other end of the first link 201 is hinged to one end of the second link 211 through the second hinge joint 210, the second hinge joint 210 is located outside the circumference of the second gear 206, and the front end of the latch 209 is located forward of the position of the first link 201 and rearward of the position of the second link 211;

the other end of the second connecting rod 211 is hinged to the third connecting rod 213 through the third hinged joint 212, the third connecting rod 213 is provided with the sliding slot 216, the sliding block 217 can slide in the sliding slot 216, and the sliding block 217 is hinged to the fourth connecting rod 218;

the supporting rod 215 is fixed on the inner lower surface of the casing 1, and the upper end of the supporting rod 215 is hinged to the middle position of the third connecting rod 213 through the fourth hinge joint 214;

the lower end of the fourth connecting rod 218 is fixed to the crushing drill bit 219, the upper end of the crushing drill bit 219 is fixed to the first limiting block 220, the tension spring 221 is sleeved on the crushing drill bit 219, one end of the tension spring 221 is fixed to the first limiting block 220, the other end of the tension spring 221 is fixed to the lower surface of the shell 1, and the lower end of the crushing drill bit 219 penetrates through the lower surface of the shell 1.

The working principle and the beneficial effects of the technical scheme are as follows: the crushing device ensures the rotation of the first gear 205 by the power of the second motor 13 in the flattening device, and further drives the second gear 206 to rotate, when the second gear 206 rotates, the first link 201 hinged on the second gear 206 follows up until the first link 201 contacts with the fixture block 209, because the fixture block 209 blocks the first link 201, the first link 201 rotates around the rotating shaft 207 at the moment, when the first link 201 rotates to the vertical position and the fixture block 209 does not block the first link 201 any more, the first link 201 immediately rotates around the first hinge joint 208, the third link 213 connected by the second hinge joint 210, the second link 211 and the third hinge joint 212 rotates around the fourth hinge joint 214 rapidly, and the crushing bit 219 moves downwards under the tension of the tension spring 221, thereby realizing the function of intermittent crushing.

Example 3

Referring to fig. 2, on the basis of the embodiment 1, the blanking device includes a blanking slot 2, a material box 3, a communicating pipe 4, a blanking switch 5 and a blanking opening 6;

lower silo 2 with casing 1 is fixed, lower silo 2 suitable for reading is located outside 1 upper surface of casing, lower silo 2 suitable for reading with workbin 3 is connected, workbin 3 below is passed through communicate pipe 4 intercommunication extremely switch 5, switch 5 with be located casing 1 outside and with casing 1 is fixed feed opening 6 is connected.

The working principle and the beneficial effects of the technical scheme are as follows: the blanking device utilizes the blanking groove 2 to receive external materials, the material box 3 stores the materials, the blanking operation is carried out through the communicating pipe 4 and the blanking opening 6, and the blanking switch 5 determines the control of the blanking time.

Example 4

Referring to fig. 2, on the basis of the above embodiment 1, the leveling device includes a second motor 13, a first belt 14, a leveling wheel 15, a first driving pulley 16, a first driven pulley 17, and a fixing shaft 20;

the second motor 13 is fixed in the lower surface of the shell 1, the output end of the second motor 13 is fixed with the first driving belt wheel 16, the first driving belt wheel 16 is connected with the first driven belt wheel 17 through the first belt 14, the first driven belt wheel 17 is fixed on the fixed shaft 20, two ends of the fixed shaft 20 are rotatably connected with the shell 1, the fixed shaft 20 is further fixed with the leveling wheel 15, and the lower edge of the leveling wheel 15 exceeds the lower surface of the shell 1.

The working principle and the beneficial effects of the technical scheme are as follows: the leveling device is arranged on the left side of the blanking device, when the blanking device carries out blanking operation, the leveling device is started, the second motor 13 rotates, and the leveling wheel 15 is driven to rotate by driving the first belt 14, so that the leveling operation of the materials discharged by the blanking device is realized.

Example 5

Referring to fig. 2, on the basis of the above embodiment 1, the cleaning device includes a sundries storage box 7, a first motor 8, a driving bevel gear 9, a driven bevel gear 10, a transmission shaft 11, a cleaning head 12 and a cleaning scraper 18;

the utility model discloses a cleaning head, including debris storage case 7, clean scraper blade 18, drive shaft 11, driven bevel gear 10, 11 lower extremes of drive shaft are worn out the 1 lower surface of casing, just 11 lower extremes of drive shaft are fixed with cleaning head 12, cleaning head 12 is located clean scraper blade 18 with the semi-closed region that the 1 lower surface of casing encloses is inside, clean scraper blade 18 is fixed in 1 below of casing, clean scraper blade 18 with the 1 lower surface of casing encloses is with the 7 intercommunications of debris storage case, first motor 8 is fixed in the 7 upper surfaces of debris storage case, first motor 8 output with drive bevel gear 9 is fixed, driven bevel gear 10 with 11 upper ends of drive shaft are fixed, just drive bevel gear 9 with driven bevel gear 10 meshes, 11 lower extremes of drive shaft wear out the 1 lower surface of casing, just 11 lower extreme is fixed with cleaning head 12, cleaning head 12 is located clean scraper blade 18 with the semi-closed region that the 1 lower surface of casing encloses.

The working principle and the beneficial effects of the technical scheme are as follows: cleaning device sets up in the reducing mechanism left side, after the reducing mechanism is handled the region to needs to handle, a large amount of debris have been remained, cleaning device drives drive bevel gear 9 through first motor 8, and with driven bevel gear 10 meshing, turn to, connect transmission shaft 11, it is rotatory to drive transmission shaft 11, and then drive the rotation of cleaning head 12, sweep into cleaning blade 18 with the kibbling debris of reducing mechanism, because cleaning blade 18 is the slope form, and communicate with debris bin 7, debris from cleaning blade 18 entering debris bin 7 are realized in the rotation of cleaning head 12, accomplish cleaning operation.

Example 6

Referring to fig. 2, 6-7, on the basis of the above embodiment 4, a leveling wheel vibration self-cleaning device is further disposed between the fixed shaft 20 and the housing 1, and the leveling wheel vibration self-cleaning device includes:

the spring clamp comprises a protective shell 301, a first spring 302, a first clamping block 303, a second limiting block 304, a connecting shaft 305, a second spring 306, a second clamping block 307 and a clamping protrusion 308;

the protective shell 301 is fixed to the housing 1, the front end of the fixing shaft 20 penetrates through the protective shell 301 and is fixed to the rear end of the second clamping block 307, the second clamping block 307 is located in the protective shell 301, the second limiting block 304 is arranged on the periphery of the second clamping block 307, and the second limiting block 304 is fixed to the housing 1;

the front end of the second clamping block 307 is clamped with the first clamping block 303, the thickness of the clamping protrusion 308 on the first clamping block 303 is larger than that of the second clamping block 307, and the part of the clamping protrusion 308, which exceeds the second clamping block 307, is contacted with the second limiting block 304;

the connecting shaft 305 is fixed at one end, away from the second clamping block 307, of the first clamping block 303, the first spring 302 is sleeved outside the connecting shaft 305, one end of the first spring 302 is in contact with the first clamping block 303, and the other end of the first spring 302 is in contact with the inner wall of the protective shell 301;

a second spring 306 is arranged between the rear end of the leveling wheel 15 and the housing 1, the second spring 306 is sleeved on the fixed shaft 20, and two ends of the second spring 306 are respectively connected with the leveling wheel 15 and the housing 1;

the elastic force of the first spring 302 is greater than the elastic force of the second spring 306.

The working principle and the beneficial effects of the technical scheme are as follows: when the leveling mechanism levels materials paved by the blanking device, the materials are inevitably adhered, a leveling wheel vibration self-cleaning device is arranged, the power of the second motor 13 is transmitted to the leveling wheel vibration self-cleaning device, when the second motor 13 rotates in the forward direction, the second motor 13 drives the first clamping block 303 to drive the second clamping block 307, so that the leveling wheel 15 normally moves, and the leveling operation of the paved materials is completed, when the second motor 13 rotates in the reverse direction, the clamping protrusion 308 connected with the first clamping block 303 and the second clamping block 307 is an inclined plane due to the stressed surface, the radial friction force is smaller than the elastic force of the first spring 302 and larger than the elastic force of the second spring 306, the first clamping block 303 and the second clamping block 307 realize relative axial movement, the vibration of the leveling wheel 15 is realized, and the materials adhered to the leveling wheel 15 fall off.

Example 7

On the basis of the above embodiment 4, the life of the first belt 14 may be calculated by a belt life warning device, which includes:

the first alarm is positioned on the shell 1;

a timer for recording the length of time the first belt 14 has been used;

first controller, first controller respectively with timer and first alarm electric connection, first controller is based on the timer control first alarm work includes:

the first controller calculates the minimum life of the first belt 14 based on the following equation:

wherein S is_minIs the minimum life of the first belt 14, Y is the actual load of the first belt 14, Z is the design load of the first belt 14, s is the life index of the first belt 14, δ is the wear rate index of the first belt 14, γ is the aging factor of the first belt 14;

when the detection value of the timer is larger than or equal to the calculated minimum service life of the first belt 14, the first controller controls the first alarm to give an alarm.

The working principle and the beneficial effects of the technical scheme are as follows: in order to ensure safety, the service life of the first belt 14 has a service limit, and the service life can be obtained through calculation, so that the potential safety hazard can be effectively avoided when the service life of the first belt 14 is within the service life limit range, and when the detection value of the timer is more than or equal to the calculated minimum service life of the first belt 14, the first controller controls the first alarm to give an alarm.

Example 8

On the basis of the above embodiment 5, the bevel gear transmission device further includes a calculation and detection device for calculating an index of influence of bevel gear transmission wear on transmission efficiency, the calculation and detection device including:

a force sensor disposed between the drive bevel gear 9 and the driven bevel gear 10 for detecting a pressure between the drive bevel gear 9 and the driven bevel gear 10;

the torque sensor is arranged at the output end of the first motor 8 and used for detecting the torque at the output end of the first motor 8;

the rotating speed sensor is arranged at the output end of the first motor 8 and used for detecting the rotating speed of the output end of the first motor 8;

a power sensor, provided on the first motor 8, for detecting the power of the first motor 8;

the second alarm is positioned on the shell 1;

the second controller, the second controller respectively with force sensor, torque sensor, speed sensor, power sensor and second alarm electric connection, the second controller is based on force sensor, torque sensor, speed sensor, power sensor control the work of second alarm includes:

step 1: the second controller obtains the wear index of the transmission of the driving bevel gear 9 and the driven bevel gear 10 based on the force sensor, the torque sensor and the formula (1):

wherein A is the wear index of the transmission of the driving bevel gear 9 and the driven bevel gear 10, and theta₁Is the pressure angle, theta, of the drive bevel gear 9₂Is the pressure angle, d, of the driven bevel gear 10₁Is the pitch diameter, d, of the drive bevel gear 9₂The pitch circle diameter of the driven bevel gear 10, mu is the friction coefficient between the drive bevel gear 9 and the driven bevel gear 10, T is the torque at the output end of the first motor 8 detected by the torque sensor, F is the pressure between the drive bevel gear 9 and the driven bevel gear 10 detected by the force sensor, sigma is the yield strength of the materials of the drive bevel gear 9 and the driven bevel gear 10, sin is sine, and cos is cosine;

step 2: the second controller calculates the transmission efficiency influence indexes of the driving bevel gear 9 and the driven bevel gear 10 based on the rotation speed sensor, the power sensor, the calculation result of formula (1) and formula (2):

wherein B is a transmission efficiency influence index of the driving bevel gear 9 and the driven bevel gear 10, and z is₁Is the number of teeth, z, of the drive bevel gear 9₂The number of teeth of the driven bevel gear 10,is the angle of intersection of the drive bevel gear 9 and the driven bevel gear 10, h₁Is the crest factor, h, of the drive bevel gear 9₂The addendum coefficient of the driven bevel gear 10, n is the rotation speed of the output end of the first motor 8 detected by the rotation speed sensor, e is a natural constant, P is the power of the first motor 8 detected by the power sensor, and pi is a circumferential rate;

and when the transmission efficiency influence indexes of the driving bevel gear 9 and the driven bevel gear 10 exceed a preset reference value range, the second controller controls a second alarm to give an alarm.

The working principle and the beneficial effects of the technical scheme are as follows: a force sensor is provided between the drive bevel gear 9 and the driven bevel gear 10 for detecting a pressure between the drive bevel gear 9 and the driven bevel gear 10, a torque sensor is provided at an output end of the first motor 8 for detecting a torque at an output end of the first motor 8, a wear index of transmission of the drive bevel gear 9 and the driven bevel gear 10 is calculated by detecting the pressure between the drive bevel gear 9 and the driven bevel gear 10, the torque at the output end of the first motor 8, and a formula (1), and a rotational speed sensor is provided at an output end of the first motor 8 for detecting a rotational speed at the output end of the first motor 8, a power sensor is provided at the first motor 8 for detecting a power of the first motor 8, and then the rotational speed at the output end of the first motor 8, detected by the rotational speed sensor, a rotational speed, detected by the power sensor, is calculated according to the formula (1), The power of the first motor 8 detected by the power sensor and a formula (2) can be used for calculating to obtain the transmission efficiency influence indexes of the driving bevel gear 9 and the driven bevel gear 10, when the transmission efficiency influence indexes of the driving bevel gear 9 and the driven bevel gear 10 exceed the preset reference value range, the second controller controls the second alarm to give an alarm to inform relevant maintenance personnel of maintenance, and the safety of the device is improved by setting the second controller to send an alarm signal.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.