阅读说明：本技术 一种用于煤矿巷道的临时支护装置 (Temporary supporting device for coal mine tunnel ) 是由 陈梁 范钢伟 张东升 王旭锋 张炜 茅献彪 张世忠 范张磊 于 2021-09-24 设计创作，主要内容包括：本发明涉及煤矿开采技术领域,具体的说是一种用于煤矿巷道的临时支护装置,包括两个底板,所述底板的底部安装有两个对称设置的转轮,所述底板的顶部转动连接有两个对称设置的支撑柱,四个所述支撑柱的顶端转动连接有同一个顶板,所述顶板的顶部固定安装有电机,所述电机的输出轴与对应的支撑柱固定连接,且四个所述支撑柱传动连接,所述底板上设有支撑机构,所述支撑机构与所述支撑柱传动连接,所述顶板的底部设有导风机构,所述导风机构包括四个对称设置的固定板,所述固定板上设有导风孔,能够便于在狭窄的巷道内进行移动,便于人们操作,且能够支撑稳定,同时还能对巷道内进行通风,便于人们使用。(The invention relates to the technical field of coal mining, in particular to a temporary supporting device for a coal mine tunnel, which comprises two bottom plates, wherein two symmetrically arranged rotating wheels are installed at the bottom of each bottom plate, two symmetrically arranged supporting columns are rotatably connected to the top of each bottom plate, the top ends of the four supporting columns are rotatably connected with a same top plate, a motor is fixedly installed at the top of each top plate, an output shaft of the motor is fixedly connected with the corresponding supporting columns, the four supporting columns are in transmission connection, a supporting mechanism is arranged on each bottom plate, the supporting mechanism is in transmission connection with the supporting columns, an air guide mechanism is arranged at the bottom of each top plate and comprises four symmetrically arranged fixed plates, air guide holes are formed in the fixed plates, the fixed plates can be conveniently moved in a narrow tunnel, the operation of people is convenient, and the supporting is stable, meanwhile, the ventilation can be carried out in the roadway, so that the ventilation device is convenient for people to use.)

1. The temporary supporting device for the coal mine roadway comprises two bottom plates (1) and is characterized in that two symmetrically-arranged rotating wheels (43) are installed at the bottom of each bottom plate (1), the top of each bottom plate (1) is rotatably connected with two symmetrically-arranged supporting columns (2), the top ends of the four supporting columns (2) are rotatably connected with the same top plate (3), a motor (5) is fixedly installed at the top of the top plate (3), an output shaft of the motor (5) is fixedly connected with the corresponding supporting columns (2), the four supporting columns (2) are in transmission connection, a supporting mechanism (4) is arranged on each bottom plate (1) and is in transmission connection with the corresponding supporting columns (2), an air guide mechanism (7) is arranged at the bottom of each top plate (3), and each air guide mechanism (7) comprises four symmetrically-arranged fixing plates (71), the air guide plate is characterized in that an air guide hole (72) is formed in the fixing plate (7), two filter plates (77) which are symmetrically arranged are fixedly mounted on the inner wall of the air guide hole (72), fan blades (75) are arranged in the air guide hole (72), a transmission unit (76) is arranged on the air guide mechanism (7), the transmission unit (76) is in transmission connection with the corresponding fan blades (75), the transmission unit (76) is in transmission connection with the corresponding support columns (2), a jacking mechanism (6) is arranged at the top of the top plate (3), the jacking mechanism (6) is in transmission connection with the corresponding support columns (2), and a buffer unit (64) is arranged on the jacking mechanism (6).

2. A temporary support device for a coal mine roadway according to claim 1, wherein: supporting mechanism (4) are including moving plate (41), the bottom fixed mounting of moving plate (41) has supporting leg (42) that four symmetries set up, the bottom fixed mounting of supporting leg (42) has backing plate (43), the bottom fixed mounting of supporting leg (42) has four reset spring (44), reset spring (44) with bottom plate (1) fixed connection.

3. A temporary support device for a coal mine roadway according to claim 1, wherein: the air guide mechanism (7) further comprises a fixing rod (73), the fixing rod (73) is fixedly connected with the inner wall of the air guide hole (72), a rotating shaft (74) is rotatably connected onto the fixing rod (73), the rotating shaft (74) is fixedly connected with the fan blades (75), and the rotating shaft (74) is in transmission connection with the transmission unit (76).

4. A temporary support device for a coal mine roadway according to claim 1, wherein: the transmission unit (76) includes fixed box (761), four fixed box (761) rotates and installs on corresponding support column (2), it is connected with transfer line (762) to rotate on fixed box (761), fixed mounting has worm wheel (764) on transfer line (762), fixed mounting has worm (763) on support column (2), worm (763) with worm wheel (764) intermeshing.

5. A temporary support device for a coal mine roadway according to claim 3, wherein: one end of the transmission rod (762) is fixedly provided with a driving gear (765), one end of the rotating shaft (74) is fixedly provided with a driven bevel gear (766), the driving gear (765) is meshed with the driven bevel gear (766), the rotating shaft (74) is rotatably provided with a positioning box (767), and the positioning box (767) is rotatably connected with the transmission rod (762).

6. A temporary support device for a coal mine roadway according to claim 1, wherein: the supporting column (2) is fixedly sleeved with chain wheels, and the four chain wheels are meshed with the same chain.

7. A temporary support device for a coal mine roadway according to claim 1, wherein: the jacking mechanism (6) comprises a jacking rod (61), the jacking rod (61) is in sliding connection with the top plate (3), a buffering rod (62) is in sliding connection with the top end of the jacking rod (61), a plate (63) is fixedly installed on the top end of the buffering rod (62), a first gear (65) is fixedly installed on the supporting column (2), four second gears (66) are rotatably connected to the bottom of the top plate (3), the second gears (66) are mutually meshed with the corresponding first gears (65), and the second gears (66) are in threaded connection with the jacking rod (61).

8. A temporary support device for a coal mine roadway according to claim 7, wherein: buffer slot (641) have been seted up to the bottom of buffer lever (62), buffer slot (641) and ejector pin (61) sliding connection who corresponds, fixed mounting has buffer spring (642) on the top inner wall of buffer slot (641), the bottom of buffer spring (642) with ejector pin (61) fixed connection.

9. A temporary support device for a coal mine roadway according to claim 7, wherein: annular spout (67) that four symmetries set up are seted up to the bottom of roof (3), sliding connection has go-between (68) on the inner wall of annular spout (67), go-between (68) with second gear (66) fixed connection, the constant head tank has been seted up on the top inner wall of annular spout (67), sliding connection has the holding ring on the inner wall of constant head tank, the holding ring with go-between (68) fixed connection.

Technical Field

The invention relates to a supporting device, in particular to a temporary supporting device for a coal mine tunnel, and belongs to the technical field of coal mining.

Background

Coal mine tunnels are a general term for various underground spaces that are cut in different directions, at different inclinations, and in different sections and lengths in different rocks, serve different areas, and serve different purposes. Mine roadways are named and classified according to their spatial dimensions, inclination directions, positions, service ranges, uses, and the like. Coal mine tunnel often can lead to the tunnel phenomenon of collapsing because of geography and construction reason when the exploitation was used to can lead to personnel to appear dangerously, therefore people have designed multiple support protector.

The existing supporting and protecting device is inconvenient to move mostly when in use, has simple functions when in supporting and protecting and is not stable enough, so that the temporary supporting and protecting device for the coal mine roadway is provided.

Disclosure of Invention

The invention aims to solve the problems, and provides a temporary supporting device for a coal mine tunnel, which can be conveniently moved in a narrow tunnel, is convenient for people to operate, can be stably supported, can ventilate the tunnel and is convenient for people to use.

The invention realizes the aim by the following technical scheme, and the temporary support device for the coal mine tunnel comprises two bottom plates, wherein two symmetrically arranged rotating wheels are installed at the bottom of each bottom plate, two symmetrically arranged supporting columns are rotatably connected to the top of each bottom plate, the top ends of the four supporting columns are rotatably connected with the same top plate, a motor is fixedly installed at the top of each top plate, an output shaft of the motor is fixedly connected with the corresponding supporting columns, the four supporting columns are in transmission connection, a supporting mechanism is arranged on each bottom plate and is in transmission connection with the supporting columns, an air guide mechanism is arranged at the bottom of each top plate and comprises four symmetrically arranged fixing plates, air guide holes are formed in the fixing plates, two symmetrically arranged filter plates are fixedly installed on the inner walls of the air guide holes, and fan blades are arranged in the air guide holes, the wind guide mechanism is provided with a transmission unit, the transmission unit is in transmission connection with the corresponding fan blades, the transmission unit is in transmission connection with the corresponding supporting columns, the top of the top plate is provided with a jacking mechanism, the jacking mechanism is in transmission connection with the corresponding supporting columns, and the jacking mechanism is provided with a buffer unit.

Preferably, the supporting mechanism includes the movable plate, the bottom fixed mounting of movable plate has the supporting leg that four symmetries set up, the bottom fixed mounting of supporting leg has the backing plate, the bottom fixed mounting of supporting leg has four reset spring, reset spring with bottom plate fixed connection, pivoted support column can drive the movable plate downstream through the threaded connection with the movable plate to carry out the fixed stay through supporting leg and backing plate to the device, and when the movable plate removed a position, the screw thread on the support column was over, and reset spring was in compression state.

Preferably, the air guide mechanism further comprises a fixing rod, the fixing rod is fixedly connected with the inner wall of the air guide hole, a rotating shaft is rotatably connected to the fixing rod, the rotating shaft is fixedly connected with the fan blades, and the rotating shaft is in transmission connection with the transmission unit.

Preferably, the transmission unit comprises four fixing boxes, the four fixing boxes are rotatably mounted on corresponding support columns, transmission rods are rotatably connected to the fixing boxes, worm wheels are fixedly mounted on the transmission rods, worms are fixedly mounted on the support columns, the worms are meshed with the worm wheels, the rotating support columns can drive the transmission rods to rotate through the mutual meshing of the worms and the worm wheels, and the connection state of the transmission rods and the support columns can be stabilized under the action of the fixing boxes.

Preferably, one end fixed mounting of transfer line has the driving gear, the one end fixed mounting of pivot has driven bevel gear, driving gear and driven bevel gear intermeshing, rotate in the pivot and install the location case, the location case with the transfer line rotates to be connected, and pivoted transfer line can drive the pivot through driving gear and driven bevel gear's intermeshing and rotate, and then bloies through the flabellum.

Preferably, fixed cover is equipped with the sprocket on the support column, four the meshing has same chain on the sprocket, and the output shaft of motor can drive four support columns and rotate simultaneously through the intermeshing of four sprockets and chain.

Preferably, the jacking mechanism comprises a jacking rod, the jacking rod is in sliding connection with the top plate, a buffering rod is in sliding connection with the top end of the jacking rod, a pressing plate is fixedly mounted at the top end of the buffering rod, a first gear is fixedly mounted on the supporting column, four second gears are rotatably connected to the bottom of the top plate, the second gears are meshed with corresponding first gears, the second gears are in threaded connection with the jacking rod, and the rotating supporting column can drive the second gears to rotate through the mutual meshing of the first gears and the second gears and drive the jacking rod to move through the threaded connection of the second gears and the jacking rod.

Preferably, the dashpot has been seted up to the bottom of buffer beam, dashpot and corresponding ejector pin sliding connection, fixed mounting has buffer spring on the top inner wall of dashpot, buffer spring's bottom with ejector pin fixed connection, the same buffer spring's of dashpot setting can be to buffering between ejector pin and the buffer beam.

Preferably, four symmetrically-arranged annular chutes are formed in the bottom of the top plate, a connecting ring is slidably connected to the inner wall of each annular chute, the connecting ring is fixedly connected with the second gear, a positioning groove is formed in the inner wall of the top of each annular chute, a positioning ring is slidably connected to the inner wall of each positioning groove, the positioning ring is fixedly connected with the connecting ring, and the connecting ring is slidably connected with the annular chutes to stabilize the rotating state of the second gear and position the second gear through the positioning grooves and the positioning rings.

The invention has the beneficial effects that: the device is moved into an ore hole to be supported, a motor switch is started, an output shaft of a motor drives four support columns to rotate simultaneously through the mutual meshing of four chain wheels and chains, the support columns drive a movable plate to move downwards through the threaded connection with the movable plate, the movable plate drives support legs and a base plate to support the device, the simultaneously rotating support columns drive a second gear to rotate through the mutual meshing of a first gear and a second gear, and drive an ejector rod to move upwards through the threaded connection of the second gear and the ejector rod, the ejector rod supports the top of the ore hole through a buffer rod and a pressing plate, simultaneously the rotating support columns drive a transmission rod to rotate through the mutual meshing of a worm rod and a worm wheel, the rotating transmission rod drives a rotating shaft to rotate through the mutual meshing of a driving gear and a driven bevel gear, the rotating shaft drives fan blades to rotate, and the rotating fan blades can convert air in the ore hole, simultaneously roof and support column set up can be convenient for make things convenient for people to avoid when the phenomenon of collapsing to increase the protective effect.

Drawings

FIG. 1 is a schematic overall perspective view of the present invention;

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

FIG. 3 is a schematic side view of the present invention;

fig. 4 is a schematic view illustrating the connection between the wind guiding mechanism and the transmission unit shown in fig. 1;

FIG. 5 is an enlarged view of the part A shown in FIG. 2;

FIG. 6 is an enlarged view of the structure of the portion B shown in FIG. 3;

fig. 7 is a schematic view of the second gear, the connecting ring, and the retaining ring of fig. 1.

In the figure: 1. a base plate; 2. a support pillar; 3. a top plate; 4. a support mechanism; 41. moving the plate; 42. supporting legs; 43. a rotating wheel; 44. a return spring; 5. a motor; 6. a jacking mechanism; 61. a top rod; 62. a buffer rod; 63. pressing a plate; 64. a buffer unit; 65. a first gear; 66. a second gear; 67. an annular chute; 68. a connecting ring; 7. an air guide mechanism; 71. a fixing plate; 72. a wind guide hole; 73. fixing the rod; 74. a rotating shaft; 75. a fan blade; 76. a transmission unit; 761. a fixing box; 762. a transmission rod; 763. a worm; 764. a worm gear; 765. a driving gear; 766. a driven bevel gear; 767. a positioning box; 77. a filter plate.

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.

Referring to fig. 1-7, a temporary support device for a coal mine roadway comprises two bottom plates 1, two symmetrically arranged rotating wheels 43 are installed at the bottom of each bottom plate 1, two symmetrically arranged supporting columns 2 are rotatably connected to the top of each bottom plate 1, the top ends of the four supporting columns 2 are rotatably connected to a same top plate 3, a motor 5 is fixedly installed at the top of each top plate 3, an output shaft of the motor 5 is fixedly connected to the corresponding supporting column 2, the four supporting columns 2 are in transmission connection, a supporting mechanism 4 is arranged on each bottom plate 1 and is in transmission connection with the corresponding supporting column 2, an air guide mechanism 7 is arranged at the bottom of each top plate 3, the air guide mechanism 7 comprises four symmetrically arranged fixing plates 71, air guide holes 72 are formed in each fixing plate 7, two symmetrically arranged filter plates 77 are fixedly installed on the inner walls of the air guide holes 72, the fan blades 75 are arranged in the air guide holes 72, the transmission units 76 are arranged on the air guide mechanism 7, the transmission units 76 are in transmission connection with the corresponding fan blades 75, the transmission units 76 are in transmission connection with the corresponding support columns 2, the top of the top plate 3 is provided with the jacking mechanism 6, the jacking mechanism 6 is in transmission connection with the corresponding support columns 2, and the buffering units 64 are arranged on the jacking mechanism 6.

As a technical optimization scheme of the invention, the supporting mechanism 4 comprises a moving plate 41, four symmetrically arranged supporting legs 42 are fixedly installed at the bottom of the moving plate 41, a backing plate 43 is fixedly installed at the bottom ends of the supporting legs 42, four return springs 44 are fixedly installed at the bottoms of the supporting legs 42, the return springs 44 are fixedly connected with the bottom plate 1, the rotating supporting column 2 can drive the moving plate 41 to move downwards through threaded connection with the moving plate 41, the device is fixedly supported through the supporting legs 42 and the backing plate 43, and when the moving plate 41 moves to a certain position, threads on the supporting column 2 are finished, and the return springs 44 are in a compressed state.

As a technical optimization scheme of the present invention, the air guiding mechanism 7 further includes a fixing rod 73, the fixing rod 73 is fixedly connected to an inner wall of the air guiding hole 72, the fixing rod 73 is rotatably connected to a rotating shaft 74, the rotating shaft 74 is fixedly connected to the fan blade 75, and the rotating shaft 74 is in transmission connection with a transmission unit 76.

As a technical optimization scheme of the present invention, the transmission unit 76 includes fixed boxes 761, four of the fixed boxes 761 are rotatably installed on corresponding supporting posts 2, the fixed boxes 761 are rotatably connected with transmission rods 762, the transmission rods 762 are fixedly installed with worm wheels 764, the supporting posts 2 are fixedly installed with worms 763, the worms 763 are engaged with the worm wheels 764, the rotating supporting posts 2 can drive the transmission rods 762 to rotate by the engagement of the worms 763 and the worm wheels 764, and the connection state of the transmission rods 762 and the supporting posts 2 can be stabilized by the action of the fixed boxes 761.

As a technical optimization scheme of the present invention, one end of the transmission rod 762 is fixedly provided with a driving gear 765, one end of the rotating shaft 74 is fixedly provided with a driven bevel gear 766, the driving gear 765 is engaged with the driven bevel gear 766, the rotating shaft 74 is rotatably provided with a positioning box 767, the positioning box 767 is rotatably connected with the transmission rod 762, and the rotating transmission rod 762 can drive the rotating shaft 74 to rotate through the engagement between the driving gear 765 and the driven bevel gear 766, so as to blow air through the fan blades 75.

As a technical optimization scheme of the invention, chain wheels are fixedly sleeved on the support columns 2, the four chain wheels are meshed with the same chain, and an output shaft of the motor 5 can drive the four support columns 2 to rotate simultaneously through the mutual meshing of the four chain wheels and the chain.

As a technical optimization scheme of the present invention, the top pressing mechanism 6 includes a top rod 61, the top rod 61 is slidably connected to the top plate 3, the top end of the top rod 61 is slidably connected to a buffer rod 62, the top end of the buffer rod 62 is fixedly provided with a pressing plate 63, the supporting column 2 is fixedly provided with a first gear 65, the bottom of the top plate 3 is rotatably connected to four second gears 66, the second gears 66 are engaged with the corresponding first gears 65, the second gears 66 are in threaded connection with the top rod 61, the rotating supporting column 2 can drive the second gears 66 to rotate through the mutual engagement between the first gears 65 and the second gears 66, and the top rod 61 is driven to move through the threaded connection between the second gears 66 and the top rod 61.

As a technical optimization scheme of the present invention, the bottom end of the buffer rod 62 is provided with a buffer groove 641, the buffer groove 641 is slidably connected to the corresponding ejector rod 61, a buffer spring 642 is fixedly mounted on the inner wall of the top of the buffer groove 641, the bottom end of the buffer spring 642 is fixedly connected to the ejector rod 61, and the buffer groove 641 and the buffer spring 642 are arranged to buffer the space between the ejector rod 61 and the buffer rod 62.

As a technical optimization scheme of the present invention, four symmetrically arranged annular sliding grooves 67 are formed at the bottom of the top plate 3, a connecting ring 68 is slidably connected to an inner wall of the annular sliding groove 67, the connecting ring 68 is fixedly connected to the second gear 66, a positioning groove is formed in an inner wall of the top of the annular sliding groove 67, a positioning ring is slidably connected to an inner wall of the positioning groove, the positioning ring is fixedly connected to the connecting ring 68, and the sliding connection between the connecting ring 68 and the annular sliding groove 67 can stabilize the rotation state of the second gear 66 and position the second gear 66 through the positioning groove and the positioning ring.

The working principle is that in operation, the device is moved into a mine hole to be supported, the motor 5 is started to be switched on and switched off, the output shaft of the motor 5 drives the four support columns 2 to rotate simultaneously through the mutual meshing of the four chain wheels and the chain, the support columns 2 drive the movable plate 41 to move downwards through the threaded connection with the movable plate 41, the movable plate 41 drives the support legs 42 and the backing plate 43 to support the device, when the movable plate 41 moves to a certain position, the threads on the support columns 2 are finished, and the reset springs 44 are in a compressed state, so that the fan blades 75 can be ensured to rotate continuously, when the motor 5 rotates in the reverse direction, the reset springs 44 can drive the movable plate 41 to form threaded connection with the support columns 2 again, meanwhile, the rotating support columns 2 drive the second gear 66 to rotate through the mutual meshing of the first gear 65 and the second gear 66 and the threaded connection of the ejector rod 61 to drive the ejector rod 61 to move upwards, the ejector rod 61 supports the top of the mine hole through the buffer rod 62 and the pressing plate 63, when the ejector rod 61 moves to the limit position, threads on the ejector rod 61 are finished, the buffer spring 642 is in a compression state, when the motor 5 rotates reversely, the buffer spring 642 can drive the ejector rod 61 to form threaded connection with the second gear 66 again, meanwhile, the rotating support column 2 drives the transmission rod 762 to rotate through the mutual meshing of the worm 763 and the worm wheel 764, the rotating transmission rod 762 drives the rotating shaft 74 to rotate through the mutual meshing of the driving gear 765 and the driven bevel gear 766, the rotating shaft 74 drives the fan blades 75 to rotate, the rotating fan blades 75 can convert air in the mine hole, meanwhile, the arrangement of the top plate 3 and the support column 2 can facilitate people to avoid when the phenomenon collapses, and therefore the protection effect is increased, and people can use the mine hole conveniently.

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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.