A rear counterweight adjusting device of a mine tunnel repairing machine

Abstract

The utility model relates to the technical field of mining equipment, concretely relates to a rear counterweight adjusting device of mine tunnel repair machine, including fixed frame, weight block, support plate and weight block mechanism, the weight block group is by multiple groups size, the weight is different and is provided with the perforation in the middle portion and constitutes the weight block, the support plate group is by multiple adaptive support plates and is composed, multiple weight block and corresponding support plate are alternately stacked from bottom to top in the hollow rectangular cavity of fixed frame, the weight block mechanism includes the adjusting frame, the adjusting frame is embedded in the vertical groove of fixed frame side portion, and its top extends and forms T character board and covers on the top of weight block group, the T character board below vertical fixed connection pull rod, drives the adjusting frame and pull rod through the jacking cylinder, realizes the automatic adjustment of weight block, and the operator does not need to carry out the operation of manual handling, dismounting and installing weight block frequently, only needs to control the telescopic of jacking cylinder, can adjust the counterweight quickly, greatly reduces the labor intensity, and remarkably improves the working efficiency of counterweight adjustment.

Description

Technical Field

[0001] This utility model relates to the field of mining equipment technology, and in particular to a rear counterweight adjustment device for a mine tunnel repair machine. Background Technology

[0002] In mining operations, tunnel repair machines play a crucial role, and their operational stability directly affects the efficiency and safety of repair operations. Currently, most tunnel repair machines use fixed counterweights, which means that a fixed weight of counterweight blocks is installed according to the equipment design requirements.

[0003] Currently, although there are some adjustable counterweight devices, most existing adjustment methods are complex in structure and the adjustment process is not convenient or efficient enough. For example, some adjustment devices adjust the counterweight by manually disassembling and installing counterweights of different weights, which is not only labor-intensive but also makes it difficult to guarantee the adjustment accuracy. Some adjustment methods use mechanical transmission, which are prone to failure due to the large number of transmission components, resulting in low reliability and increased equipment maintenance costs and downtime.

[0004] Therefore, we provide a rear counterweight adjustment device for a mine tunnel repair machine. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned technical problems by providing a rear counterweight adjustment device for a mine tunnel repair machine, thereby solving the problems of inconvenient counterweight adjustment and difficulty in adapting to different working conditions in existing mine tunnel repair machines.

[0006] In view of this, the present invention provides a rear counterweight adjustment device for a mine tunnel repair machine, including a fixed frame, a counterweight block, a support plate and a counterweight adjustment mechanism;

[0007] The adjusting weight block group consists of multiple sets of adjusting weight blocks of different sizes and weights, each with a perforation in the middle. The support plate group consists of multiple matching support plates. The multiple sets of adjusting weight blocks and corresponding support plates are alternately stacked in the hollow rectangular cavity of the fixed frame from bottom to top.

[0008] The weight adjustment mechanism includes an adjustment frame, which is embedded in the vertical groove on the side of the fixed frame. Its top extends to form a T-shaped plate and covers the weight block group. A tie rod is vertically fixed below the T-shaped plate. The tie rod passes through each weight block in sequence, and its bottom end abuts against the bottom surface of the lowest weight block.

[0009] The bottom assembly cavity of the adjustment frame is equipped with a lifting cylinder. The bottom end of the lifting cylinder is fixed to the support chassis. The adjustment frame moves up and down along the vertical groove by the extension and retraction of the lifting cylinder, which drives the pull rod to lift the bottom layer adjustment block away from the corresponding support plate, thereby realizing the counterweight adjustment.

[0010] Preferably, the fixed frame is detachably installed at the rear of the mine tunnel repair machine via a positioning plate integrally formed on the side end.

[0011] Preferably, the lifting cylinder can continue to extend downwards, causing the pull rod to continue to rise, driving the adjusting blocks of the second-to-last and third-to-last layers to disengage from their corresponding support plates, thereby achieving a step-by-step adjustment of the counterweight by gradually reducing the number of adjusting blocks layer by layer.

[0012] Preferably, the weight adjustment mechanism is further provided with two guide posts, and one guide post is installed in each of the two sets of vertical slots on the end side of the fixed frame. The part of the adjustment frame extending into the vertical slot is connected through the two sets of guide posts.

[0013] Preferably, the upper end of the pull rod is provided with an integral fixing plate, and the pull rod is detachably installed directly below the adjusting frame in conjunction with the fixing plate and bolts at the upper end.

[0014] Preferably, each layer of the support plate has mounting holes formed on its end side, and each layer of the support plate can be detachably installed on the fixed frame.

[0015] Preferably, each layer of the support plate has a slot structure for the corresponding adjustment block, and the adjustment block of each layer is engaged and installed in the corresponding slot structure.

[0016] Compared with the prior art, this utility model provides a rear counterweight adjustment device for a mine tunnel repair machine, which has the following beneficial effects:

[0017] 1. This utility model achieves automatic adjustment of the counterweight by driving the adjusting frame and pull rod with a lifting cylinder. Operators no longer need to frequently perform manual handling, disassembly and installation of the counterweight. They only need to control the extension and retraction of the lifting cylinder to quickly adjust the counterweight, which greatly reduces labor intensity and significantly improves the work efficiency of counterweight adjustment.

[0018] 2. This utility model employs a combination of multiple sets of adjusting blocks of varying sizes and weights, combined with a layer-by-layer detachment adjustment method from the support plate. This not only allows for step-by-step adjustment of the counterweight by controlling the lifting cylinder to detach the adjusting blocks layer by layer according to actual working conditions, but also enables precise adjustment of the counterweight weight. This ensures the mine tunnel repair machine maintains excellent stability in various working scenarios, meeting the complex and ever-changing needs of mine operations.

[0019] 3. In this utility model, the weight adjustment mechanism uses a simple guide column to guide the weight block and the adjustment frame to connect the adjustment block and the adjustment frame. Combined with the structural design of the lifting cylinder drive, it reduces the complexity of transmission components and lowers the difficulty of subsequent maintenance.

[0020] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0021] Figure 1 This is the overall view of the present utility model;

[0022] Figure 2 This is a schematic diagram of the weight adjustment mechanism proposed in this utility model;

[0023] Figure 3 This is a schematic diagram of the installation of the adjusting block proposed in this utility model;

[0024] Figure 4 This is a schematic diagram of the support plate structure proposed in this utility model.

[0025] In the diagram: 1. Fixed frame; 11. Vertical groove; 2. Positioning plate; 3. Adjusting weight block; 4. Support plate; 41. Assembly hole; 42. Slot structure; 5. Adjusting mechanism; 51. Adjusting frame; 511. T-plate; 52. Tie rod; 53. Lifting cylinder; 54. Support chassis; 55. Guide column. Detailed Implementation

[0026] 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.

[0027] Example:

[0028] Please see Figure 1 - Figure 4This embodiment of a mine tunnel repair machine includes a rear counterweight adjustment device comprising: a fixed frame 1, adjusting blocks 3, support plates 4, and an adjusting mechanism 5; the adjusting blocks 3 are composed of multiple sets of adjusting blocks 3 of different sizes and weights, each with a perforation in the center; the support plates 4 are composed of multiple adaptable support plates 4; the multiple sets of adjusting blocks 3 and corresponding support plates 4 are alternately stacked from bottom to top in the hollow rectangular cavity of the fixed frame 1; the adjusting mechanism 5 includes an adjusting frame 51, which is embedded in the vertical groove 11 on the side of the fixed frame 1, and its top... The section extends to form a T-shaped plate 511 and covers the top of the three sets of adjusting weights. A tie rod 52 is vertically fixed below the T-shaped plate 511. The tie rod 52 passes through each adjusting weight 3 in sequence, and its bottom end abuts against the bottom surface of the lowest adjusting weight 3. A lifting cylinder 53 is provided in the bottom assembly cavity of the adjusting frame 51. The bottom end of the lifting cylinder 53 is fixed to the support chassis 54. The extension and retraction of the lifting cylinder 53 drives the adjusting frame 51 to move up and down along the vertical groove 11, which drives the tie rod 52 to lift the lowest adjusting weight 3 away from the corresponding support plate 4, thereby realizing the counterweight adjustment.

[0029] In this embodiment, since existing counterweight adjustment relies on manual disassembly and installation of the counterweight block 3, which is inefficient, the lifting cylinder 53 drives the adjusting frame 51 to move along the vertical groove 11, which drives the pull rod 52 to automatically lift the counterweight block 3 away from the support plate 4. No manual handling is required. The operator only needs to control the extension and retraction of the cylinder to quickly complete the counterweight adjustment, which greatly shortens the adjustment time and significantly improves the operational efficiency of counterweight adjustment of the mine tunnel repair machine.

[0030] Among them, by controlling the lifting cylinder 53, the tie rod 52 can drive the adjusting block 3 to gradually detach from the support plate 4, realizing the step-by-step increase or decrease of the counterweight. It can accurately adjust the counterweight weight according to the needs of different working conditions, so that the mine tunnel repair machine can always maintain the best balance in complex working environments and improve the working stability of the equipment.

[0031] The fixed frame 1 can be detachably installed at the rear of the mine tunnel repair machine via a positioning plate 2 integrally formed on the side end.

[0032] Among them, the lifting cylinder 53 can continue to extend downward, so that the pull rod 52 continues to rise, driving the second-to-last and third-to-last adjusting weight blocks 3 to disengage from the corresponding support plates 4, and achieving step-by-step adjustment of the counterweight by gradually reducing the number of adjusting weight blocks 3 layer by layer.

[0033] The weight adjustment mechanism 5 is also equipped with two guide posts 55. Two sets of vertical grooves 11 on the end side of the fixed frame 1 are respectively equipped with a guide post 55. The part of the adjustment frame 51 extending into the vertical groove 11 is connected to the two sets of guide posts 55.

[0034] Among them, by setting guide posts 55 in the vertical groove 11 on the end side of the fixed frame 1 and connecting them through the extension of the adjustment frame 51, the vertical movement of the adjustment frame 51 is precisely guided, effectively constraining the movement trajectory of the adjustment frame 51, preventing it from shifting laterally or shaking during the lifting process, and ensuring that the counterweight block 3 can be vertically and smoothly detached from the support plate 4, which significantly improves the stability of the counterweight adjustment process.

[0035] The upper end of the pull rod 52 is provided with an integral fixing plate, and the pull rod 52 is installed directly below the adjusting frame 51 in a detachable manner with the fixing plate and bolts.

[0036] Each layer of support plate 4 has an assembly hole 41 formed on its end side, and each layer of support plate 4 can be detachably installed on the fixed frame 1.

[0037] Each layer of support plate 4 has a slot structure 42 that corresponds to the adjusting weight 3, and each layer of adjusting weight 3 is engaged and installed in the corresponding slot structure 42.

[0038] In this process, by setting a slot structure 42 on each layer of support plate 4 that is compatible with the weight adjustment block 3, the weight adjustment block 3 can be accurately positioned during initial installation and operation. The limiting function of the slot structure 42 effectively prevents the weight adjustment block 3 from lateral displacement or shaking due to vibration or external force during equipment operation, ensuring that the weight adjustment block 3 of each layer is always in the preset position.

[0039] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0040] 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 rear counterweight adjustment device for a mine tunnel repair machine, characterized in that, include: Fixed frame (1), adjusting weight (3), support plate (4) and adjusting mechanism (5); The set of adjusting weights (3) consists of multiple sets of adjusting weights (3) with different sizes and weights and perforations in the middle. The set of support plates (4) consists of multiple matching support plates (4). Multiple sets of adjusting weights (3) and corresponding support plates (4) are alternately stacked in the hollow rectangular cavity of the fixed frame (1) from bottom to top. The weight adjustment mechanism (5) includes an adjustment frame (51), which is embedded in the vertical groove (11) on the side of the fixed frame (1). Its top extends to form a T-shaped plate (511) and covers the top of the weight adjustment block (3) group. A tie rod (52) is vertically fixed below the T-shaped plate (511). The tie rod (52) passes through each weight adjustment block (3) in sequence, and its bottom end abuts against the bottom surface of the lowest weight adjustment block (3). The bottom assembly cavity of the adjustment frame (51) is equipped with a lifting cylinder (53). The bottom end of the lifting cylinder (53) is fixed to the support chassis (54). The adjustment frame (51) is driven to move up and down along the vertical groove (11) by the extension and retraction of the lifting cylinder (53), which drives the pull rod (52) to lift the bottommost adjusting block (3) and disengage it from the corresponding support plate (4) to realize the counterweight adjustment.

2. The rear counterweight adjustment device for a mine tunnel repair machine according to claim 1, characterized in that, The fixed frame (1) can be detachably installed at the rear of the mine tunnel repair machine via a positioning plate (2) integrally formed on the side end.

3. The rear counterweight adjustment device for a mine tunnel repair machine according to claim 1, characterized in that, The lifting cylinder (53) can continue to extend downward, so that the pull rod (52) continues to rise, driving the second-to-last and third-to-last adjusting blocks (3) to detach from the corresponding support plates (4), and the counterweight is adjusted in a stepwise manner by gradually reducing the number of adjusting blocks (3) layer by layer.

4. The rear counterweight adjustment device of a mine tunnel repair machine according to claim 1, characterized in that, The weight adjustment mechanism (5) is also provided with two guide posts (55). Two sets of vertical grooves (11) on the end side of the fixed frame (1) are respectively equipped with a guide post (55). The part of the adjustment frame (51) extending into the vertical groove (11) is connected through the two sets of guide posts (55).

5. The rear counterweight adjustment device for a mine tunnel repair machine according to claim 3, characterized in that, The upper end of the pull rod (52) is provided with an integral fixing plate, and the pull rod (52) is installed directly below the adjustment frame (51) in a detachable manner with the fixing plate at the upper end and bolts.

6. The rear counterweight adjustment device of a mine tunnel repair machine according to claim 1, characterized in that, Each layer of the support plate (4) has an assembly hole (41) formed on its end side, and each layer of the support plate (4) can be detachably installed on the fixed frame (1).

7. The rear counterweight adjustment device for a mine tunnel repair machine according to claim 6, characterized in that, Each layer of the support plate (4) has a slot structure (42) for the corresponding adjustment block (3), and the adjustment block (3) of each layer is engaged and installed in the corresponding slot structure (42).

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