A support type comprehensive roadheader

Abstract

The present invention belongs to the technical field of roadheaders, and particularly relates to a supported comprehensive roadheader, which includes a roadheader body and a support assembly. The support assembly is arranged on the roadheader body. The support assembly includes a support plate, a connecting arm and a support arm. The connecting arm is hinged to the support arm. A rotary motor is fixed on the connecting arm, and the support plate is fixedly connected to the output shaft of the rotary motor. The support plate is driven to rotate by the rotary motor. The upper surface of the support plate is an arc surface, and the lower surface of the support plate is a flat surface. An angle adjustment limiting mechanism is arranged between the connecting arm and the support arm. The angle between the connecting arm and the support arm can be adjusted and the rotation of the support plate can be limited through the angle adjustment limiting mechanism. The support arm is hinged to the roadheader body, and an adjustment oil cylinder is arranged at the hinge. By driving the support plate to rotate through the rotary motor, the arc surface can be upward to support the roof of the arched roadway; on the contrary, the flat surface can be upward to support the roof of the rectangular roadway or the trapezoidal roadway.

Description

Technical Field

[0001] The present invention belongs to the technical field of roadheaders, and particularly relates to a supported comprehensive roadheader. Background Art

[0002] The temporary support and the beam support are two different devices, and each of them requires a certain installation space. Since the available space at the top of the roadheader is relatively limited, it is impossible to install these two devices on the top of the roadheader at the same time.

[0003] For this reason, the invention patent application with the patent application number 202210942292.5 discloses a support assembly and a roadheader, which integrates the beam support assembly on the support assembly, improves the functional integration degree of the roadheader, and saves equipment space; in addition, the support plate and the beam support assembly can share a set of drive components.

[0004] However, in the actual use process, the shapes of the roadway include arch-shaped, rectangular or trapezoidal; and the shapes of the first support plate and the second support plate in the above invention are arc-shaped, that is, it is only suitable for roof support work in an arch-shaped roadway and cannot adapt to the support work of rectangular roadways or trapezoidal roadways (the roof structure is a flat structure). Summary of the Invention

[0005] In view of the above technical problems, the present invention provides a supported comprehensive roadheader, and the support structure of the roadheader can adapt to roadways of different shapes and can perform temporary support on the roofs of different roadways.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0007] A supported comprehensive roadheader includes a roadheader body and a support assembly. The support assembly is arranged on the roadheader body. The support assembly includes a support plate, a connecting arm and a support arm. The connecting arm is hinged to the support arm. A slewing motor is fixed on the connecting arm, and the support plate is fixedly connected to the output shaft of the slewing motor. The support plate is driven to rotate by the slewing motor; the upper surface of the support plate is an arc surface, and the lower surface of the support plate is a flat surface; an angle adjustment limiting mechanism is arranged between the connecting arm and the support arm to adjust the angle between the connecting arm and the support arm through the angle adjustment limiting mechanism and limit the rotation of the support plate; the support arm is hinged to the roadheader body, and an adjustment oil cylinder is arranged between the support arm and the roadheader body.

[0008] The angle adjustment limiting mechanism includes a driving oil cylinder and a driving plate. The two ends of the driving oil cylinder are respectively fixedly connected to the connecting arm and the driving plate; a support rod is fixedly connected to the driving plate, a support seat is fixedly connected to the support arm, and an inclined groove for sliding connection with the support rod is arranged on the support seat; a limiting rod is arranged on the driving plate, and a limiting seat for inserting the limiting rod is arranged on the support plate.

[0009] There are two limiting rods, and the two limiting rods are respectively connected to the driving plate through thrust cylinders; the ends of the limiting rods are conical.

[0010] It further includes a beam support. The beam support is slidably connected to the support plate, and a first return spring is provided between the beam support and the support plate; the beam support is fixedly connected with a first driving rod; the first driving rod is slidably connected to the support plate; one of the limiting rods passes through the limit seat and contacts the end of the first driving rod to push the first driving rod to move.

[0011] Connection clamping grooves are provided at the upper and lower ends of the beam support.

[0012] It further includes a pressing mechanism. The pressing mechanism includes a second driving rod and two pressing arms. The two pressing arms are both hinged to the beam support; a driving rack is slidably connected to the beam support, and a second return spring is provided between the driving rack and the beam support; the driving rack is located between the two pressing arms, and driving gears meshing with the driving rack are provided on both pressing arms; the second driving rod is slidably connected to the support plate, and the front end of the second driving rod is fixedly connected to the driving rack; the other limiting rod passes through the limit seat and contacts the rear end of the second driving rod to push the second driving rod to move.

[0013] Connection grooves corresponding to the pressing arms are provided at the upper and lower ends of the beam support.

[0014] The support arm is a telescopic arm.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The upper surface of the support plate is an arc surface, and the lower surface of the support plate is a flat surface; by driving the support plate to rotate through a slewing motor, the arc surface can be turned upwards to support the roof of an arched roadway (the roof is arc-shaped); conversely, the flat surface can be turned upwards to support the roof of a rectangular roadway or a trapezoidal roadway (the roof is flat). That is, this roadheader can adapt to the roof support of three different-shaped roadways, namely arched roadways, rectangular roadways, or trapezoidal roadways.

[0017] An angle adjustment limiting mechanism is provided. On the one hand, it can limit the rotation of the support plate during the support process to ensure the stability of the support; on the other hand, it can adjust the angle between the connecting arm and the support arm to adapt to the angle change of the roof.

[0018] A beam support is provided, which can lift the roof beam to be installed to the required height for installation. And a first driving rod is provided. By moving the first driving rod, the beam support can be driven to move accordingly, and the size of the working space can be adjusted.

[0019] A pressing mechanism is provided, and the pressing mechanism is driven by the movement of the second driving rod; the top beam on the beam support can be pressed by the pressing mechanism to prevent it from moving or falling off during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a schematic diagram of the structure of the support assembly of the present invention in one direction;

[0022] Figure 3 is Figure 2 a partial enlarged view of the position A in

[0023] Figure 4 is a schematic diagram of the structure of the support assembly of the present invention in another direction;

[0024] Figure 5 is Figure 4 a partial enlarged view of the position B in

[0025] Figure 6 is a schematic diagram of the structure of the support assembly of the present invention in yet another direction;

[0026] Figure 7 is a cross-sectional view of the support assembly of the present invention;

[0027] Figure 8 is Figure 7 a partial enlarged view of the position C in

[0028] Wherein: 1 is the roadheader body, 2 is the support assembly, 20 is the support plate, 200 is the arc surface, 201 is the flat surface, 202 is the limit block, 21 is the connecting arm, 22 is the support arm, 23 is the slewing motor, 24 is the angle adjustment limiting mechanism, 240 is the driving oil cylinder, 241 is the driving plate, 242 is the support rod, 243 is the support seat, 2430 is the inclined groove, 245 is the limiting rod, 246 is the limiting seat, 247 is the thrust oil cylinder, 3 is the adjusting oil cylinder, 4 is the beam support, 40 is the connecting card slot, 41 is the connecting groove, 42 is the limiting groove, 5 is the first return spring, 6 is the first driving rod, 7 is the pressing mechanism, 70 is the second driving rod, 71 is the pressing arm, 72 is the driving rack, 73 is the second return spring, 74 is the driving gear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Apparently, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0030] As Figures 1-8As shown in the figure, a support-type comprehensive roadheader includes a roadheader body 1 and a support assembly 2. The support assembly 2 is arranged on the roadheader body 1. The support assembly 2 includes a support plate 20, a connecting arm 21 and a support arm 22. The support arm 22 is hinged to the roadheader body 1. An adjusting oil cylinder 3 is arranged between the support arm 22 and the roadheader body 1. The two ends of the adjusting oil cylinder 3 are respectively hinged to the support arm 22 and the roadheader body 1. By extending and retracting the adjusting oil cylinder 3, the angle between the support arm 22 and the roadheader body 1 can be changed. The support arm 22 preferably adopts a telescopic arm in the prior art.

[0031] A rotary motor 23 is fixed on the connecting arm 21. The support plate 20 is fixedly connected to the output shaft of the rotary motor 23. The support plate 20 is driven to rotate by the rotary motor 23. The upper surface of the support plate 20 is an arc surface 200, and the lower surface of the support plate 20 is a flat surface 201.

[0032] When it is necessary to support the roof of an arched roadway (the roof is arc-shaped), the support plate 20 is driven to rotate by the rotary motor 23 so that its arc surface 200 faces upward. When it is necessary to support the roof of a rectangular roadway or a trapezoidal roadway (the roof is flat), the support plate 20 is driven to rotate by the rotary motor 23 so that its flat surface 201 faces upward. That is, this roadheader can adapt to the roof support of three different-shaped roadways: arched roadways, rectangular roadways or trapezoidal roadways.

[0033] The connecting arm 21 is hinged to the support arm 22. An angle-adjusting limiting mechanism 24 is arranged between the connecting arm 21 and the support arm 22. The angle between the connecting arm 21 and the support arm 22 can be adjusted through the angle-adjusting limiting mechanism 24 so as to adapt to the inclination change of the roadway roof. Moreover, the support plate 20 can also be limited through the angle-adjusting limiting mechanism 24 to prevent it from rotating during the support process.

[0034] Furthermore, the angle-adjusting limiting mechanism 24 includes a driving oil cylinder 240 and a driving plate 241. The two ends of the driving oil cylinder 240 are respectively fixedly connected to the connecting arm 21 and the driving plate 241. The driving plate 241 can be driven to move by extending and retracting the driving oil cylinder 240.

[0035] A support rod 242 is fixedly connected to the driving plate 241. A support seat 243 is fixedly connected to the support arm 22. An inclined slot 2430 for sliding connection with the support rod 242 is arranged on the support seat 243. When the driving plate 241 moves, it will drive the support rod 242 to move along the inclined slot 2430, thereby changing the inclination angle between the connecting arm 21 and the support arm 22, and further changing the inclination angle of the support plate 20.

[0036] A limiting rod 245 is provided on the driving plate 241, and a limiting seat 246 inserted with the limiting rod 245 is provided on the support plate 20. When the driving plate 241 moves, it will drive the limiting rod 245 to insert into the limiting seat 246, thereby restricting the rotation of the support plate 20.

[0037] When it is necessary to rotate the support plate 20, first drive the driving plate 241 to move in the reverse direction through the driving oil cylinder 240, so that the limiting rod 245 moves out of the limiting seat 246; then drive the support plate 20 to rotate through the slewing motor 23. After the support plate 20 rotates, move the driving plate 241 to make the limiting rod 245 insert into the limiting seat 246; at the same time, the support rod 242 will move along the inclined groove 2430.

[0038] Furthermore, preferably two limiting rods 245 are provided, and the two limiting rods 245 are respectively connected to the driving plate 241 through the thrust oil cylinders 247; both ends of the thrust oil cylinder 247 are fixedly connected to the driving plate 241 and the limiting rod 245 respectively. The end of the limiting rod 245 is conical to facilitate insertion into the limiting seat 246.

[0039] Furthermore, it further includes a joist support 4 for lifting the roof beam. The joist support 4 is slidably connected to the support plate 20, and corresponding sliding grooves are provided on the support plate 20. A first return spring 5 is provided between the joist support 4 and the support plate 20, and both ends of the first return spring 5 are fixedly connected to the joist support 4 and the support plate 20 respectively.

[0040] Specifically: a limiting groove 42 is provided on the joist support 4, and a limiting block 202 matched with the limiting groove 42 is fixed on the support plate 20; in the initial state, the side surface of the limiting block 202 abuts against the limiting groove 42 through the first return spring 5, that is, in the initial state, the distance between the joist support 4 and the support plate 20 is in the state of the minimum gap.

[0041] A first driving rod 6 is fixedly connected to the joist support 4, and the first driving rod 6 is slidably connected to the support plate 20. One of the limiting rods 245 passes through the limiting seat 246 and contacts the end of the first driving rod 6 to push the first driving rod 6 to move. When the first driving rod 6 moves, it will drive the joist support 4 to move along the support plate 20, increasing the distance between the joist support 4 and the support plate 20 (the first return spring 5 generates elastic potential energy), that is, the size of the working space can be adjusted to ensure that the bolt drill has enough working space.

[0042] Connection card slots 40 are provided at the upper and lower ends of the joist support 4, that is, no matter whether the arc surface 200 is facing up or the flat surface 201 is facing up, the roof beam can be placed in the connection card slots 40 to fix the roof beam.

[0043] Furthermore, to prevent the top beam from falling off due to excessive jacking distance and resulting wobbling, a pressing mechanism 7 is also provided. The pressing mechanism 7 includes a second driving rod 70 and two pressing arms 71. Both of the two pressing arms 71 are hinged to the beam support 4. A driving rack 72 is slidably connected to the beam support 4, and a second return spring 73 is provided between the driving rack 72 and the beam support 4. The two ends of the second return spring 73 are fixedly connected to the driving rack 72 and the beam support 4 respectively. In the initial state, the two pressing arms 71 are in an open state through the second return spring 73.

[0044] The driving rack 72 is located between the two pressing arms 71, and a driving gear 74 meshing with the driving rack 72 is fixed on each of the two pressing arms 71. When the driving rack 72 moves (the second return spring 73 generates elastic potential energy), it meshes with the driving gear 74, thereby driving the two pressing arms 71 to rotate and close, and then pressing the top beam to prevent it from falling off during the jacking process. When the appropriate height is reached (there is a certain interval from the roadway roof to ensure that the two pressing arms 71 can rotate in the reverse direction), the two pressing arms 71 are separated from the top beam by moving the driving rack 72 in the reverse direction; finally, after a short-distance jacking, the construction operation of the top beam can be carried out.

[0045] Two pressing arms 71 are provided, that is, a connection slot 40 at each of the upper and lower ends of the beam support 4 corresponds to a pressing arm 71 respectively. That is, whether the arc surface 200 is upward or the flat surface 201 is upward, the top beam located in the connection slot 40 can be pressed.

[0046] The second driving rod 70 is slidably connected to the support plate 20, and the front end of the second driving rod 70 is fixedly connected to the driving rack 72; another limiting rod 245 passes through the limiting seat 246 and contacts the rear end of the second driving rod 70, pushing the second driving rod 70 to move, and then driving the driving rack 72 to move accordingly.

[0047] Furthermore, connection grooves 41 corresponding to the pressing arms 71 are provided at the upper and lower ends of the beam support 4; after the pressing arms 71 rotate and close, a part of them can be placed in the connection grooves 41, so as to prevent the pressing arms 71 from exceeding the beam support 4 by too much height.

[0048] Only the preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the above embodiments.

Claims

1. A supporting type comprehensive tunnel boring machine, characterized in that: The invention comprises a tunnel boring machine body (1) and a support assembly (2), wherein the support assembly (2) is arranged on the tunnel boring machine body (1), the support assembly (2) comprises a support plate (20), a connecting arm (21) and a support arm (22), the connecting arm (21) is hinged to the support arm (22), a rotary motor (23) is fixed to the connecting arm (21), the support plate (20) is fixedly connected to the output shaft of the rotary motor (23), and the support plate (20) is driven to rotate by the rotary motor (23); the support plate (20) is connected to the supporting arm (22) and the supporting arm (21) is hinged to the supporting arm (22), a rotary motor (23) is fixed to the connecting arm (21), and the output shaft of the rotary motor (23) is fixedly connected to the supporting plate (20). The upper surface of the guard plate (20) is a curved surface (200), and the lower surface of the support plate (20) is a flat surface (201); an angle adjustment limit mechanism (24) is provided between the connecting arm (21) and the support arm (22), and the angle between the connecting arm (21) and the support arm (22) is adjusted by the angle adjustment limit mechanism (24) and the rotation of the support plate (20) can be limited; the support arm (22) is hinged to the tunnel boring machine body (1), and an adjustment cylinder (3) is provided between the support arm (22) and the tunnel boring machine body (1); The angle adjustment and limiting mechanism (24) comprises a driving cylinder (240) and a driving plate (241), wherein two ends of the driving cylinder (240) are fixedly connected to the connecting arm (21) and the driving plate (241), respectively; a support rod (242) is fixedly connected to the driving plate (241), a support seat (243) is fixedly connected to the support arm (22), and an inclined groove (2430) is provided on the support seat (243) and is slidably connected to the support rod (242); a limiting rod (245) is provided on the driving plate (241), and a limiting seat (246) plugged into the limiting rod (245) is provided on the supporting plate (20); two limiting rods (245) are provided, and the two limiting rods (245) are respectively connected to the driving plate (241) via a thrust cylinder (247); and the end of the limiting rod (245) is conical; It also includes a beam support frame (4), the beam support frame (4) is slidably connected to the support plate (20), and a first return spring (5) is provided between the beam support frame (4) and the support plate (20); the beam support frame (4) is fixedly connected to a first drive rod (6); the first drive rod (6) is slidably connected to the support plate (20); one of the limit rods (245) passes through the limit seat (246) and contacts the end of the first drive rod (6), thereby pushing the first drive rod (6) to move; the upper and lower ends of the beam support frame (4) are provided with connection slots (40); The invention also comprises a clamping mechanism (7), wherein the clamping mechanism (7) comprises a second driving rod (70) and two clamping arms (71), wherein the two clamping arms (71) are both hinged to the beam support frame (4); a driving rack (72) is slidably connected to the beam support frame (4), and a second return spring (73) is provided between the driving rack (72) and the beam support frame (4); the driving rack (72) is located between the two clamping arms (71), and the two clamping arms (71) are both provided with a driving gear (74) meshing with the driving rack (72); the second driving rod (70) is slidably connected to the support plate (20), and the front end of the second driving rod (70) is fixedly connected to the driving rack (72); another limiting rod (245) passes through the limiting seat (246) and contacts the rear end of the second driving rod (70), thereby pushing the second driving rod (70) to move; and the upper and lower ends of the beam support frame (4) are provided with connecting grooves (41) corresponding to the clamping arms (71).

2. A supporting integrated tunnel boring machine according to claim 1, characterized in that: The supporting arm (22) is a telescopic arm.

Images