Rotary track device for portal type tunnel construction equipment

Abstract

The utility model discloses a rotary track device for portal type tunnel construction equipment, which belongs to the field of rotary tracks and comprises a frame body, a track mechanism and a gripper shoe mechanism, the track mechanism comprises a plurality of upper track seats mounted at the lower end of the frame body, and rotary drivers are fixedly mounted at the lower ends of the upper track seats. The steering mode of the crawler chassis can be changed fundamentally by matching the crawler mechanism with the gripper mechanism, huge friction with the ground during steering is avoided, the risk of failure and fracture caused by stress concentration at the hinged position of the crawler base is avoided to a great extent, meanwhile, the stability of portal type equipment in the operation and transition process can be kept, and the service life of the portal type equipment is prolonged. The rotary device has the functions of bearing the weight of the whole machine, walking, steering, uphill and downhill and the like, the friction stress condition of four-track equipment is fundamentally improved, the posture and position adjustment of the equipment is more flexible, the risk caused by stress concentration at the hinged position of the track seat is avoided to a great extent, and the practicability of the rotary device can be further enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of rotary caterpillar belt, concretely to a rotary caterpillar belt device for portal type tunnel construction equipment. BACKGROUND

[0002] At present, in domestic tunnel engineering, the existing excavation mode mainly relies on trolley, and the integrated portal type tunnel construction equipment solves the time loss of equipment transfer during different process switching, greatly shortens the cycle time of drill and blast method, but the portal type tunnel construction equipment is large in size and heavy in weight, the torque received by the traditional four-caterpillar chassis when turning is too large to easily cause stress damage at the hinged part, the utility model aims at solving the problem of too large torque required when the four-caterpillar chassis of the heavy trolley turns, and simultaneously avoiding the situation of large caterpillar friction force and low fluency when turning. SUMMARY

[0003] The embodiment of the utility model provides a rotary caterpillar belt device for portal type tunnel construction equipment, aims at solving the problems of large turning friction force of the existing construction equipment and low fluency

[0004] In order to achieve the above object, the utility model provides a rotary caterpillar belt device for portal type tunnel construction equipment, which comprises a vehicle frame main body, a caterpillar belt mechanism and a support shoe mechanism.

[0005] The caterpillar belt mechanism comprises a plurality of upper caterpillar belt seats installed at the lower end of the vehicle frame main body, the lower end of each of the plurality of upper caterpillar belt seats is fixedly installed with a rotary drive, the lower end of the rotary drive is installed with a lower caterpillar belt seat, and the lower end of the lower caterpillar belt seat is installed with a drive assembly.

[0006] The support shoe mechanism comprises a support shoe connecting plate installed at the lower end of the vehicle frame main body, the lower end of the support shoe connecting plate is installed with a support shoe hydraulic oil cylinder, and the lower end of the support shoe hydraulic oil cylinder is installed with a support shoe seat.

[0007] As a preferred scheme of the utility model, the drive assembly comprises a drive plate installed at the lower end of the lower caterpillar belt seat, the lower end of the drive plate is rotatably connected with a guide wheel on one side, a plurality of supporting wheels are equidistantly installed at the lower end of the drive plate, and the side surfaces of the guide wheel and the plurality of supporting wheels are connected with caterpillar belt plates.

[0008] As a preferred scheme of the utility model, the upper caterpillar belt seat and the lower caterpillar belt seat are threadedly connected with fastening bolts, the upper end of the vehicle frame main body is fixedly installed with a reinforcing seat, and the upper caterpillar belt seat is connected with the reinforcing seat.

[0009] As a preferred scheme of the utility model, the lower end of the support shoe seat is detachably installed with an antiskid gasket, and a connecting cross strip is inserted between the support shoe seat and the support shoe hydraulic oil cylinder.

[0010] In a preferred embodiment of this utility model, the support shoe connecting plate is connected to the frame body via a flange.

[0011] As a preferred embodiment of this utility model, the anti-slip pad is made of rubber.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. When the chassis body moves, the drive plate in the drive assembly, in conjunction with the guide wheels and support wheels, controls the track plates to move the chassis body forward or backward. When the chassis body needs to turn, firstly, the hydraulic cylinder of the support shoe is controlled to push up, causing the support shoe seat to descend and contact the ground, thereby lifting the track mechanism off the ground. The rotary drive controls the lower track seat and its lower drive assembly to rotate 180° or -180°. Then, the hydraulic cylinder of the support shoe is controlled to retract the support shoe seat and detach it from the ground, causing the track mechanism to descend, thus achieving the effect of the chassis body turning left or right and translating. Compared to the current… The present invention, through the cooperation of the above-mentioned structures, fundamentally changes the steering method of the tracked chassis, avoids the huge friction with the ground during turning, and greatly avoids the risk of stress concentration failure and fracture at the track seat hinge. At the same time, it can maintain the stability of the gantry equipment during operation and relocation, bear the weight of the whole machine, and perform functions such as walking, turning, and going up and down slopes. It fundamentally improves the friction and stress conditions of the four-tracked equipment, gives the equipment greater flexibility in attitude and position adjustment, and greatly avoids the risk of stress concentration at the track seat hinge, thereby enhancing the practicality of the slewing device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is an enlarged view of the structure at point A of this utility model;

[0016] Figure 3 This is an enlarged view of the structure at point B of this utility model;

[0017] Figure 4 This is a top view of the main structure of the vehicle frame of this utility model;

[0018] Figure 5 This is a plan view of the main structure of the vehicle frame of this utility model.

[0019] In the diagram: 100, chassis body; 200, track mechanism; 201, upper track seat; 202, slewing drive; 203, lower track seat; 204, drive assembly; 2041, drive plate; 2042, guide wheel; 2043, support wheel; 2044, track plate; 211, fastening bolt; 212, reinforcing seat; 300, support shoe mechanism; 301, support shoe connecting plate; 302, support shoe hydraulic cylinder; 303, support shoe seat; 311, anti-slip pad; 312, connecting crossbar. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] Please see Figures 1-5 This utility model provides a rotary track device for gantry-type tunnel construction equipment, including a frame body 100, a track mechanism 200, and a support shoe mechanism 300.

[0023] The track mechanism 200 includes a plurality of upper track seats 201 installed at the lower end of the frame body 100. A rotary drive 202 is fixedly installed at the lower end of each of the upper track seats 201. A lower track seat 203 is installed at the lower end of the rotary drive 202. A drive assembly 204 is installed at the lower end of the lower track seat 203.

[0024] The support shoe mechanism 300 includes a support shoe connecting plate 301 installed at the lower end of the frame body 100, a support shoe hydraulic cylinder 302 installed at the lower end of the support shoe connecting plate 301, and a support shoe seat 303 installed at the lower end of the support shoe hydraulic cylinder 302.

[0025] In one specific embodiment, the track mechanism 200, in conjunction with the support shoe mechanism 300, fundamentally changes the steering method of the tracked chassis, avoiding significant friction with the ground during steering. This greatly reduces the risk of stress concentration failure and fracture at the track seat hinge, while maintaining the stability of the gantry equipment during operation and relocation. It supports the weight of the entire machine, movement, steering, and incline / descent functions, fundamentally improving the frictional stress conditions of the four-tracked equipment. This provides greater flexibility in adjusting the equipment's posture and position, significantly mitigating the risks associated with stress concentration at the track seat hinge, and thus enhancing the practicality of the slewing device. In use, it is first driven... Component 204 can move the chassis body 100 forward or backward. When the chassis body 100 needs to turn, the hydraulic cylinder 302 of the support shoe is first controlled to push up, so that the support shoe seat 303 descends and contacts the ground, which can lift the track mechanism 200 and suspend it off the ground. The rotary drive 202 can control the lower track seat 203 and its lower drive component 204 to rotate 180° or -180°. Then, the hydraulic cylinder 302 of the support shoe is controlled to retract the support shoe seat 303 and detach it from the ground, thereby controlling the track mechanism 200 to descend, so as to achieve the effect of the chassis body 100 turning left and right and moving horizontally, thereby enhancing the practicality of the track device.

[0026] Please see Figure 2 The drive assembly 204 includes a drive plate 2041 mounted on the lower end of the lower track seat 203. A guide wheel 2042 is rotatably connected to one side of the lower end of the drive plate 2041. A plurality of support wheels 2043 are equidistantly mounted on the lower end of the drive plate 2041. Track plates 2044 are connected to the side surfaces of the guide wheel 2042 and the plurality of support wheels 2043.

[0027] In one specific embodiment, the drive plate 2041, in conjunction with the guide wheel 2042 and the support wheel 2043, can rotate the track plate 2044 to control the movement of the chassis body 100 and improve the smoothness and stability of the movement of the chassis body 100.

[0028] Please see Figure 2 A fastening bolt 211 is threaded between the upper track seat 201 and the lower track seat 203. A reinforcing seat 212 is fixedly installed at the upper end of the frame body 100, and the upper track seat 201 and the reinforcing seat 212 are connected.

[0029] In one specific embodiment, the fastening bolt 211 can enhance the connection strength between the upper track seat 201 and the lower track seat 203, and the reinforcing seat 212 can enhance the installation stability between the upper track seat 201 and the frame body 100, thereby improving the safety of use.

[0030] Please see Figure 3The lower end of the support shoe seat 303 is detachably equipped with an anti-slip pad 311, and a connecting crossbar 312 is inserted between the support shoe seat 303 and the support shoe hydraulic cylinder 302.

[0031] In one specific embodiment, the anti-slip pad 311 can increase the friction between the support shoe seat 303 and the ground, further improving the overall stability of the frame body 100, and the connecting crossbar 312 can improve the ease of disassembly and assembly between the support shoe hydraulic cylinder 302 and the support shoe seat 303.

[0032] Please see Figure 3 The support shoe connecting plate 301 is connected to the frame body 100 via a flange.

[0033] In one specific embodiment, the connecting flange can improve the connection stability and ease of disassembly and replacement between the support shoe connecting plate 301 and the frame body 100.

[0034] Please see Figure 3 The anti-slip pad 311 is made of rubber.

[0035] In one specific embodiment, the rubber anti-slip pad 311 can protect the boot support 303, preventing wear and tear and affecting its service life.

[0036] Working principle: In use, the drive assembly 204 first moves the chassis body 100 forward or backward. When the chassis body 100 needs to turn, the hydraulic cylinder 302 of the support shoe is controlled to push the support shoe seat 303 down and contact the ground, thus lifting the track mechanism 200 off the ground. The rotary drive 202 can control the lower track seat 203 and the drive assembly 204 at its lower end to rotate 180° or -180°. Finally, the hydraulic cylinder 302 of the support shoe is controlled to retract the support shoe seat 303 and lift it off the ground, thus controlling the track mechanism 200 to descend. This enables the chassis body 100 to turn left and right and move horizontally, thereby enhancing the practicality of the track device.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotary crawler device for gantry-type tunnel construction equipment, characterized in that, Including the main frame (100): Track mechanism (200), the track mechanism (200) includes a plurality of upper track seats (201) installed at the lower end of the frame body (100), a rotary drive (202) is fixedly installed at the lower end of each of the plurality of upper track seats (201), a lower track seat (203) is installed at the lower end of the rotary drive (202), and a drive assembly (204) is installed at the lower end of the lower track seat (203). The support shoe mechanism (300) includes a support shoe connecting plate (301) installed at the lower end of the frame body (100), a support shoe hydraulic cylinder (302) is installed at the lower end of the support shoe connecting plate (301), and a support shoe seat (303) is installed at the lower end of the support shoe hydraulic cylinder (302).

2. The rotary track device for a gantry-type tunnel construction equipment according to claim 1, characterized in that: The drive assembly (204) includes a drive plate (2041) installed at the lower end of the lower track seat (203). A guide wheel (2042) is rotatably connected to one side of the lower end of the drive plate (2041). A plurality of support wheels (2043) are equidistantly installed at the lower end of the drive plate (2041). Track plates (2044) are connected to the side surfaces of the guide wheel (2042) and the plurality of support wheels (2043).

3. The rotary crawler device for a gantry-type tunnel construction equipment according to claim 1, characterized in that: The upper track seat (201) and the lower track seat (203) are threaded together by a fastening bolt (211), and a reinforcing seat (212) is fixedly installed on the upper end of the frame body (100). The upper track seat (201) and the reinforcing seat (212) are connected together.

4. The rotary track device for a gantry-type tunnel construction equipment according to claim 1, characterized in that: The lower end of the support shoe seat (303) is detachably equipped with an anti-slip pad (311), and a connecting crossbar (312) is inserted between the support shoe seat (303) and the support shoe hydraulic cylinder (302).

5. The rotary track device for a gantry-type tunnel construction equipment according to claim 1, characterized in that: The support shoe connecting plate (301) is connected to the frame body (100) via a flange.

6. The rotary track device for a gantry-type tunnel construction equipment according to claim 4, characterized in that: The anti-slip pad (311) is made of rubber.

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