阅读说明：本技术 一种土木工程用公路夯土机 (Highway rammer for civil engineering ) 是由 王照兮 唐勇 伍鹏 唐渊 于 2020-10-14 设计创作，主要内容包括：本发明公开了一种土木工程用公路夯土机,包括夯土组件和行走组件；所述夯土组件包括手扶杆、支撑底板、第一电机、连接杆、第一转轴、偏心块、第一槽轮、第二槽轮和第一皮带；所述手扶杆连接于所述支撑底板的一侧；所述连接杆固连于所述支撑底板的上方；所述第一转轴转动连接于所述支撑底板的上方；所述连接杆和所述第一转轴彼此平行,且均水平设置；所述第一槽轮同轴转动套设于所述连接杆；所述偏心块连接于所述第一槽轮的偏心处；所述第二槽轮同轴固定套设于所述第一转轴；本发明提出的一种土木工程用公路夯土机具有行走组件,能够实现本夯土机在不进行夯土时的转运,不再需要人工进行搬运,更加省时省力。(The invention discloses a highway rammer for civil engineering, which comprises a rammer component and a walking component, wherein the rammer component is arranged on the highway rammer; the ramming assembly comprises a handrail, a supporting base plate, a first motor, a connecting rod, a first rotating shaft, an eccentric block, a first grooved wheel, a second grooved wheel and a first belt; the handrail is connected to one side of the support bottom plate; the connecting rod is fixedly connected above the supporting bottom plate; the first rotating shaft is rotatably connected above the supporting bottom plate; the connecting rod and the first rotating shaft are parallel to each other and are both horizontally arranged; the first grooved wheel is coaxially and rotatably sleeved on the connecting rod; the eccentric block is connected to the eccentric part of the first sheave; the second grooved wheel is coaxially and fixedly sleeved on the first rotating shaft; the road rammer for civil engineering provided by the invention is provided with the walking assembly, so that the rammer can be transferred without ramming soil, manual carrying is not required, and time and labor are saved.)

1. A road rammer for civil engineering is characterized by comprising a ramming assembly and a walking assembly; the ramming assembly comprises a handrail, a supporting base plate, a first motor, a connecting rod, a first rotating shaft, an eccentric block, a first grooved wheel, a second grooved wheel and a first belt;

the handrail is connected to one side of the support bottom plate; the connecting rod is fixedly connected above the supporting bottom plate; the first rotating shaft is rotatably connected above the supporting bottom plate; the connecting rod and the first rotating shaft are parallel to each other and are both horizontally arranged;

the first grooved wheel is coaxially and rotatably sleeved on the connecting rod; the eccentric block is connected to the eccentric part of the first sheave; the second grooved wheel is coaxially and fixedly sleeved on the first rotating shaft; the first motor is used for driving the first rotating shaft to rotate; the first belt is wound between the first sheave and the second sheave;

the walking assembly comprises 2 walking parts; the supporting bottom plate comprises a first side edge and a second side edge which are oppositely arranged; the 2 walking parts are respectively close to the first side edge and the second side edge; the walking part comprises a first sliding sleeve, a first sliding rod, a second sliding sleeve, a second sliding rod, a cross arm, a first vertical arm, a second vertical arm, a first roller, a second roller, a limiting plate and a limiting column;

the first sliding sleeve and the second sliding sleeve are both vertically and fixedly connected to the upper surface of the supporting bottom plate; the first sliding rod vertically slides and penetrates through the first sliding sleeve; the second sliding rod vertically slides and penetrates through the second sliding sleeve; two ends of the cross arm are fixedly connected to the first slide bar and the second slide bar respectively; the cross arm is higher than the first sliding sleeve and the second sliding sleeve;

the first vertical arm and the second vertical arm are both vertically and fixedly connected to the cross arm; the first roller is rotatably connected to the bottom end of the first vertical arm; the second roller is rotatably connected to the bottom end of the second vertical arm;

the limiting plate is vertically connected to the upper surface of the supporting bottom plate; the limiting plate is provided with a first limiting hole which is horizontally arranged; the first vertical arm is provided with a second limiting hole which is horizontally arranged; the limiting column movably penetrates through the second limiting hole; the limiting column can penetrate through the second limiting hole and is in contact with the lower side surface of the supporting bottom plate, and the first roller and the second roller are in contact with the ground at the same time; the limiting column can further penetrate through the second limiting hole and the first limiting hole, and the first roller and the second roller are not in contact with the ground at the moment.

2. The road tamper of claim 1, wherein the tamper assembly further comprises a first pair of support rods, a second pair of support rods, a third sheave, a fourth sheave, and a second belt;

the first supporting rod pair and the second supporting rod pair are vertically and fixedly connected to the upper surface of the supporting bottom plate; the first pair of support bars comprises 2 first support bars; two ends of the connecting rod are fixedly connected with the 2 first supporting rods respectively; the second pair of support bars comprises 2 second support bars; the first rotating shaft is rotatably connected among the 2 second supporting rods;

the third sheave is coaxially and fixedly sleeved on the first rotating shaft; the first motor is fixed on the upper surface of the supporting bottom plate; the fourth grooved wheel is coaxially and fixedly connected with an output shaft of the first motor; the second belt is wound between the third sheave and the fourth sheave.

3. The road tamper for civil engineering works according to claim 1, wherein the support base plate comprises a third side and a fourth side which are oppositely disposed; the first sliding sleeve is close to the third side edge; the second sliding sleeve is close to the fourth side.

4. The road tamper of claim 3, wherein the first vertical arm is adjacent to the first runner; the second vertical arm is close to the second sliding sleeve.

5. The road tamper for civil engineering work of claim 1, wherein the traveling member further comprises a first link plate and a second link plate; the first sliding sleeve is fixedly connected to the upper surface of the supporting bottom plate through the first connecting plate; the second sliding sleeve is fixedly connected to the upper surface of the supporting bottom plate through the second connecting plate.

6. The road tamper for civil engineering work of claim 1, wherein the traveling member further comprises a first baffle plate and a second baffle plate; the first baffle is connected to the bottom end of the first sliding rod; the second baffle is connected to the bottom end of the second slide bar.

7. The road tamper for civil engineering work of claim 1, wherein the traveling member further comprises a second motor, a second rotating shaft, a third belt, a fifth sheave and a sixth sheave;

the second roller is coaxially and fixedly connected to the second rotating shaft; the second rotating shaft is rotatably connected to the second vertical arm; the fifth grooved wheel is coaxially and fixedly sleeved on the second rotating shaft; the second motor is fixedly connected to the upper part of the second vertical arm; the output shaft of the second motor is coaxially and fixedly sleeved with the sixth grooved pulley; and the third belt is wound between the fifth sheave and the sixth sheave.

8. The road tamper for civil engineering work of claim 1, further comprising a control assembly; the control assembly comprises a first switch and a second switch; the first switch is used for controlling the starting and stopping of the first motor; the second switch is used for controlling the starting and stopping of the second motor.

9. A road tamper for civil engineering works according to any one of claims 1 to 8, characterised in that the cross arm is arranged horizontally.

10. The road tamper for civil engineering works according to any one of claims 1 to 8, wherein the first slide sleeve and the second slide sleeve are located at the same height.

Technical Field

The invention relates to the technical field of construction machinery, in particular to a highway rammer for civil engineering.

Background

The rammer is a compaction machine for compacting backfill soil layer by using the action of impact and impact vibration. In the road construction process of civil engineering, the rammer is one of indispensable equipment, tamps the road foundation through the rammer, can avoid the road to appear collapsing because of the ground is not real.

However, the conventional road rammer is not provided with a walking device, so that the transportation is very troublesome in the using process, the road rammer is generally carried manually, and particularly, the road rammer cannot be well transferred in the construction process of a segmented road, so that time and labor are wasted.

Disclosure of Invention

The invention mainly aims to provide a road rammer for civil engineering, and aims to solve the problems that the conventional road rammer is not provided with a walking device, is very troublesome to transport, needs manual carrying and wastes time and labor in the use process.

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

a road rammer for civil engineering comprises a ramming assembly and a walking assembly; the ramming assembly comprises a handrail, a supporting base plate, a first motor, a connecting rod, a first rotating shaft, an eccentric block, a first grooved wheel, a second grooved wheel and a first belt;

the handrail is connected to one side of the support bottom plate; the connecting rod is fixedly connected above the supporting bottom plate; the first rotating shaft is rotatably connected above the supporting bottom plate; the connecting rod and the first rotating shaft are parallel to each other and are both horizontally arranged;

the first grooved wheel is coaxially and rotatably sleeved on the connecting rod; the eccentric block is connected to the eccentric part of the first sheave; the second grooved wheel is coaxially and fixedly sleeved on the first rotating shaft; the first motor is used for driving the first rotating shaft to rotate; the first belt is wound between the first sheave and the second sheave;

the walking assembly comprises 2 walking parts; the supporting bottom plate comprises a first side edge and a second side edge which are oppositely arranged; the 2 walking parts are respectively close to the first side edge and the second side edge; the walking part comprises a first sliding sleeve, a first sliding rod, a second sliding sleeve, a second sliding rod, a cross arm, a first vertical arm, a second vertical arm, a first roller, a second roller, a limiting plate and a limiting column;

the first sliding sleeve and the second sliding sleeve are both vertically and fixedly connected to the upper surface of the supporting bottom plate; the first sliding rod vertically slides and penetrates through the first sliding sleeve; the second sliding rod vertically slides and penetrates through the second sliding sleeve; two ends of the cross arm are fixedly connected to the first slide bar and the second slide bar respectively; the cross arm is higher than the first sliding sleeve and the second sliding sleeve;

the first vertical arm and the second vertical arm are both vertically and fixedly connected to the cross arm; the first roller is rotatably connected to the bottom end of the first vertical arm; the second roller is rotatably connected to the bottom end of the second vertical arm;

the limiting plate is vertically connected to the upper surface of the supporting bottom plate; the limiting plate is provided with a first limiting hole which is horizontally arranged; the first vertical arm is provided with a second limiting hole which is horizontally arranged; the limiting column movably penetrates through the second limiting hole; the limiting column can penetrate through the second limiting hole and is in contact with the lower side surface of the supporting bottom plate, and the first roller and the second roller are in contact with the ground at the same time; the limiting column can further penetrate through the second limiting hole and the first limiting hole, and the first roller and the second roller are not in contact with the ground at the moment.

Preferably, the ramming earth assembly further comprises a first support rod pair, a second support rod pair, a third sheave, a fourth sheave and a second belt;

the first supporting rod pair and the second supporting rod pair are vertically and fixedly connected to the upper surface of the supporting bottom plate; the first pair of support bars comprises 2 first support bars; two ends of the connecting rod are fixedly connected with the 2 first supporting rods respectively; the second pair of support bars comprises 2 second support bars; the first rotating shaft is rotatably connected among the 2 second supporting rods;

the third sheave is coaxially and fixedly sleeved on the first rotating shaft; the first motor is fixed on the upper surface of the supporting bottom plate; the fourth grooved wheel is coaxially and fixedly connected with an output shaft of the first motor; the second belt is wound between the third sheave and the fourth sheave.

Preferably, the support base plate comprises a third side edge and a fourth side edge which are oppositely arranged; the first sliding sleeve is close to the third side edge; the second sliding sleeve is close to the fourth side.

Preferably, the first vertical arm is close to the first sliding sleeve; the second vertical arm is close to the second sliding sleeve.

Preferably, the walking part further comprises a first connecting plate and a second connecting plate; the first sliding sleeve is fixedly connected to the upper surface of the supporting bottom plate through the first connecting plate; the second sliding sleeve is fixedly connected to the upper surface of the supporting bottom plate through the second connecting plate.

Preferably, the walking part further comprises a first baffle and a second baffle; the first baffle is connected to the bottom end of the first sliding rod; the second baffle is connected to the bottom end of the second slide bar.

Preferably, the walking part further comprises a second motor, a second rotating shaft, a third belt, a fifth sheave and a sixth sheave;

the second roller is coaxially and fixedly connected to the second rotating shaft; the second rotating shaft is rotatably connected to the second vertical arm; the fifth grooved wheel is coaxially and fixedly sleeved on the second rotating shaft; the second motor is fixedly connected to the upper part of the second vertical arm; the output shaft of the second motor is coaxially and fixedly sleeved with the sixth grooved pulley; and the third belt is wound between the fifth sheave and the sixth sheave.

Preferably, the device further comprises a control component; the control assembly comprises a first switch and a second switch; the first switch is used for controlling the starting and stopping of the first motor; the second switch is used for controlling the starting and stopping of the second motor.

Preferably, the cross arm is horizontally arranged.

Preferably, the first sliding sleeve and the second sliding sleeve are located at the same height.

Compared with the prior art, the invention at least has the following beneficial effects:

the road rammer for civil engineering provided by the invention is provided with the walking assembly, so that the rammer can be transferred without ramming soil, manual carrying is not required, and time and labor are saved.

The specific working principle is as follows: when this rammer compactor needs to be transported, take out spacing post earlier, hold the xarm and upwards promote the supporting baseplate, promote the supporting baseplate when first gyro wheel and second gyro wheel all with the ground contact, insert the spacing hole of second with spacing post again, make spacing post and supporting baseplate's downside contact simultaneously, because of the limiting displacement of spacing post, can make when first gyro wheel and second gyro wheel keep and the ground contact, the supporting baseplate does not contact with ground, can hold the handrail this rammer this moment, in order to reach the purpose of transporting this rammer compactor.

When the normal use this rammer after the completion is transported, take out spacing post, hold the xarm and upwards promote the xarm to this upwards promotes first gyro wheel and second gyro wheel to break away from in ground, at this moment, supporting baseplate and ground contact, insert the spacing hole of second with spacing post again, and imbed the first spacing hole of limiting plate simultaneously, with fixed first vertical arm, in order to reach the purpose of fixed xarm, first gyro wheel and second gyro wheel, can carry out normal ramming operation this moment, first gyro wheel and second gyro wheel no longer influence the ramming operation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic side view of an embodiment of a road tamper for civil engineering work according to the present invention;

FIG. 2 is a schematic top view of an embodiment of a road tamper for civil engineering work according to the present invention;

fig. 3 is an enlarged sectional view of the structure at a in fig. 1.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating 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 the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a road rammer for civil engineering.

Referring to fig. 1-3, in an embodiment of a road tamper for civil engineering (hereinafter, referred to as tamper), the tamper includes a tamper assembly and a walking assembly; the ramming earth assembly includes the handrail 120, the support base plate 110, the first motor 130, the connecting rod 250, the first rotating shaft 170, the eccentric mass 240, the first sheave 230, the second sheave 190, and the first belt 210.

The handrail 120 is connected to one side of the support base plate 110; the connecting rod 250 is fixedly connected above the supporting base plate 110; the first rotating shaft 170 is rotatably connected above the supporting base plate 110; the connection rod 250 and the first rotation shaft 170 are parallel to each other and are horizontally disposed.

The first sheave 230 is coaxially and rotatably sleeved on the connecting rod 250; the eccentric mass 240 is connected to the eccentricity of the first sheave 230; the second grooved pulley 190 is coaxially fixed on the first rotating shaft 170; the first motor 130 is used for driving the first rotating shaft 170 to rotate; a first belt 210 is wound between the first sheave 230 and the second sheave 190.

Through above-mentioned technical scheme for this rammer has ramming ability, and the rammer principle is: the first motor 130 drives the first rotating shaft 170 to rotate, so as to drive the second sheave 190 to rotate, and the first belt 210 drives the first sheave 230 to rotate, so as to drive the eccentric block 240 to rotate, so as to drive the supporting base plate 110 to make reciprocating movement, so that the lower side of the supporting base plate 110 can vibrate and tamp the road surface.

The walking assembly comprises 2 walking parts; the support base plate 110 includes a first side 111 and a second side 112 oppositely disposed; the 2 walking parts are respectively close to the first side edge 111 and the second side edge 112; the walking part comprises a first sliding sleeve 320, a first sliding rod 310, a second sliding sleeve 370, a second sliding rod 360, a cross arm 350, a first vertical arm 410, a second vertical arm 420, a first roller 430, a second roller 490, a limit plate 450 and a limit column 440.

The first sliding sleeve 320 and the second sliding sleeve 370 are both vertically and fixedly connected to the upper surface of the support base plate 110; the first sliding bar 310 is vertically and slidably arranged through the first sliding sleeve 320; the second sliding rod 360 is vertically and slidably arranged through the second sliding sleeve 370; two ends of the cross arm 350 are fixedly connected to the first sliding rod 310 and the second sliding rod 360 respectively; the cross arm 350 is higher than the first runner 320 and the second runner 370.

The first vertical arm 410 and the second vertical arm 420 are both vertically and fixedly connected to the cross arm 350; the first roller 430 is rotatably connected to the bottom end of the first vertical arm 410; the second roller 490 is rotatably coupled to the bottom end of the second vertical arm 420. The first roller 430 is lower than the first slide bar 310, the second roller 490 is lower than the second slide bar 360, and the first roller 430 and the second roller 490 are located at the same level.

The limit plate 450 is vertically connected to the upper surface of the support base 110; the limiting plate 450 is provided with a first limiting hole (not shown) horizontally arranged; the first vertical arm 410 is provided with a second limiting hole (not shown) which is horizontally arranged; the limiting column 440 movably penetrates through the second limiting hole; the limiting column 440 can penetrate through the second limiting hole and contact with the lower side surface of the supporting base plate 110, and at this time, the first roller 430 and the second roller 490 simultaneously contact with the ground; the limiting column 440 can also penetrate through the second limiting hole and the first limiting hole, and the first roller 430 and the second roller 490 are not in contact with the ground.

The road rammer for civil engineering provided by the invention is provided with the walking assembly, so that the rammer can be transferred without ramming soil, manual carrying is not required, and time and labor are saved.

The specific working principle is as follows: when the rammer compactor needs to be transported, the limiting column 440 is firstly drawn out, the cross arm 350 is held and the supporting base plate 110 is upwards lifted, when the supporting base plate 110 is lifted to the state that the first roller 430 and the second roller 490 are in contact with the ground, the limiting column 440 is inserted into the second limiting hole, meanwhile, the limiting column 440 is in contact with the lower side face of the supporting base plate 110, due to the limiting effect of the limiting column 440, the first roller 430 and the second roller 490 can be kept in contact with the ground, the supporting base plate 110 is not in contact with the ground, the hand holding rod 120 can be held by a hand at the moment, and the rammer compactor is pushed, so that the purpose of transporting the rammer compactor is achieved.

When the soil compactor is normally used after the transfer is finished, the limiting column 440 is firstly drawn out, the cross arm 350 is held and lifted upwards, so that the first roller 430 and the second roller 490 are lifted upwards to be separated from the ground, at the moment, the supporting base plate 110 is contacted with the ground, the limiting column 440 is inserted into the second limiting hole and is simultaneously embedded into the first limiting hole of the limiting plate 450, so that the first vertical arm 410 is fixed, the purpose of fixing the cross arm 350, the first roller 430 and the second roller 490 is achieved, at the moment, normal soil compacting operation can be carried out, and the first roller 430 and the second roller 490 do not influence the soil compacting operation any more.

In addition, as shown in fig. 1 and 2, the ramming assembly further includes a first support rod pair, a second support rod pair, a third sheave 180, a fourth sheave 140, and a second belt 150.

The first supporting rod pair and the second supporting rod pair are vertically and fixedly connected to the upper surface of the supporting base plate 110; the pair of first support bars 220 includes 2 first support bars 220; two ends of the connecting rod 250 are respectively fixedly connected to the 2 first supporting rods 220; the pair of second support bars 160 includes 2 second support bars 160; the first rotating shaft 170 is rotatably connected (by bearings) between the 2 second support bars 160.

The third grooved pulley 180 is coaxially and fixedly sleeved on the first rotating shaft 170; the first motor 130 is fixed to the upper surface of the support base 110; the fourth sheave 140 is coaxially and fixedly connected to an output shaft of the first motor 130; a second belt 150 is wound between the third sheave 180 and the fourth sheave 140. The diameter of the third sheave 180 is larger than the diameter of the fourth sheave 140, and the diameter of the first sheave 230 is larger than the diameter of the second sheave 190 to achieve deceleration and torque increase. The cross arm 350 is horizontally arranged, and the first sliding sleeve 320 and the second sliding sleeve 370 are positioned at the same height; through above-mentioned technical scheme, improved the structure of rammed earth subassembly.

Meanwhile, the support base 110 includes a third side (not shown) and a fourth side (not shown) that are oppositely disposed; the first runner 320 is adjacent to the third side; the second runner 370 is adjacent the fourth side. The first vertical arm 410 is adjacent to the first runner 320; the second vertical arm 420 is adjacent to the second runner 370. The walking part further comprises a first connecting plate 340 and a second connecting plate 380; the first sliding sleeve 320 is fixedly connected to the upper surface of the support base plate 110 through a first connecting plate 340; the second sliding sleeve 370 is fixedly connected to the upper surface of the support base plate 110 by a second connecting plate 380. By the arrangement, the structure of the soil rammer is more perfect.

In addition, the traveling unit further includes a first barrier 330 and a second barrier 390; the first baffle 330 is connected to the bottom end of the first sliding bar 310; the second barrier 390 is connected to the bottom end of the second slide bar 360. The first sliding bar 310 is prevented from being separated from the first sliding sleeve 320 by the provision of the first blocking plate 330, and the second sliding bar 360 is prevented from being separated from the second sliding sleeve 370 by the provision of the second blocking plate 390.

Meanwhile, the traveling unit further includes a second motor 480, a second rotating shaft (not shown), a third belt 470, a fifth sheave (not shown), and a sixth sheave 460.

The second roller 490 is coaxially and fixedly connected to the second rotating shaft; the second rotating shaft is rotatably connected to the second vertical arm 420; the fifth grooved wheel is coaxially and fixedly sleeved on the second rotating shaft; the second motor 480 is fixedly connected to the upper part of the second vertical arm 420; a sixth grooved pulley 460 is coaxially and fixedly sleeved on an output shaft of the second motor 480; a third belt 470 is wound between the fifth and sixth sheaves 460.

Through above-mentioned technical scheme, can rotate through second motor 480 drive second gyro wheel 490 to this rammer compactor of drive walking no longer needs this rammer compactor of artifical promotion, labour saving and time saving more during transporting this rammer compactor.

In addition, the traveling assembly further includes a third motor 610, an eighth sheave 580, a ninth sheave 590, a fourth belt 560, and a fifth belt 570; the traveling unit further includes a support frame 510, a screw 520, a ball nut 530, and a seventh sheave 540.

The supporting frame 510 is fixedly connected to the upper surface of the supporting base plate 110; the support frame 510 comprises a horizontal bar 511; the cross bar 511 is higher than the support base 110; both ends of the screw rod 520 are respectively and rotatably connected to the cross bar 511 and the upper surface of the support base plate 110 (the bottom end of the screw rod 520 is rotatably connected to the upper side surface of the support base plate 110 through a bearing seat 620); the screw rod 520 is vertically arranged; the ball nut 530 is sleeved on the screw rod 520 in a matching way; the seventh sheave 540 is coaxially and fixedly sleeved at the lower part of the screw rod 520; the seventh sheave 540 is horizontally arranged; the outer wall of ball nut 530 is attached to crossbar 350.

The third motor 610 is fixed to the upper surface of the support base 110; an eighth sheave 580 and a ninth sheave 590 are coaxially and fixedly sleeved on an output shaft of the third motor 610; the fourth belt 560 is wound around the seventh sheave 540 and the eighth sheave 580 of the traveling unit near the first side 111; the fifth belt 570 is wound around the seventh sheave 550 and the ninth sheave 590 of the traveling member near the second side edge 112.

Through the technical scheme, the height of the cross arm 350 relative to the supporting base plate 110 can be automatically adjusted, so that the height of the first roller 430 and the second roller 490 relative to the supporting base plate 110 can be automatically adjusted, the first roller 430 and the second roller 490 are in contact with the ground during transportation, and the first roller 430 and the second roller 490 are separated from the ground again during normal use; so that the rammer is more time-saving and labor-saving to operate.

The specific principle is as follows: when the rammer is required to be transported, the limiting column 440 is firstly drawn out, the third motor 610 is started, the lead screw 520 which drives 2 walking parts simultaneously rotates, the ball nut 530 which drives 2 walking parts descends, 2 cross arms 350 descend simultaneously, the first roller 430 and the second roller 490 are driven to descend simultaneously, the supporting base plate 110 is made to ascend relatively, after the supporting base plate 110 is lifted off, the second limiting hole is lower than the lower side face of the supporting base plate 110, the limiting column 440 is inserted into the second limiting hole, the limiting column 440 and the lower side face of the supporting base plate 110 are made to contact (the third motor 610 is stopped at the moment) simultaneously, due to the limiting effect of the limiting column 440, the first roller 430 and the second roller 490 can be transported to be in contact with the ground, the supporting base plate 110 is not in contact with the ground, and the rammer is transported at the moment.

When the rammer is normally used after the transfer is finished, the limit column 440 is firstly drawn out, the third motor 610 is reversely started, thereby simultaneously driving the screw rods 520 of the 2 walking parts to rotate, driving the ball nuts 530 of the 2 walking parts to ascend, thereby driving the 2 cross arms 350 to ascend simultaneously, thereby driving the first roller 430 and the second roller 490 to ascend simultaneously, thereby relatively lowering the support base 110, and when the support base 110 is brought into contact with the ground, and the first roller 430 and the second roller 490 are not in contact with the ground, and then the position-limiting post 440 is inserted into the second position-limiting hole, at the same time, the position-limiting column 440 is simultaneously inserted into the first position-limiting hole (at this time, the third motor 610 is stopped), so as to fix the first vertical arm 410, so as to fix the cross arm 350, the first roller 430 and the second roller 490, and at this time, the normal ramming operation can be performed, and the ramming operation is not affected by the first roller 430 and the second roller 490.

Meanwhile, the soil compactor also comprises a control assembly (not shown); the control assembly comprises a first switch, a second switch and a third switch; the first switch is used for controlling the start and stop of the first motor 130; the second switch is used to control the start and stop of the second motor 480, and the third switch is used to control the start, stop and rotation direction of the third motor 610.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.