Boring tailstock for maintenance of heading machine

Abstract

The utility model discloses a boring tailstock for maintenance of a heading machine, and belongs to the technical field of maintenance of heading machines, the boring tailstock comprises a bottom plate, four supporting sliding grooves are formed in the bottom plate according to the circumferential arrangement sequence, and supporting sliding blocks are slidably connected into the supporting sliding grooves; supporting rotating shafts are rotatably connected to one ends of the outer sides of the supporting sliding blocks, fixing sliding grooves are formed in the bottom plate, the four fixing sliding grooves are formed in the bottom plate according to the circumferential arrangement sequence, and second connecting blocks are slidably connected to the positions, located on the inner side of the bottom plate, in the fixing sliding grooves; a hydraulic rod is fixedly connected to the middle position of the second connecting block, and a welding block is fixedly connected to the tail end of the hydraulic rod. The supporting sliding block moves in the supporting sliding groove, so that the supporting rotating shaft can be attached to the inner wall of a boring hole for fixed supporting, then the welding block is controlled to abut against the layer wall position of the boring hole for welding and fixing, and the mounting requirements of boring equipment under different diameters are met.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel boring machine maintenance, and in particular to a boring tail frame for tunnel boring machine maintenance. Background Art

[0002] A roadheader is a kind of engineering machinery used for digging tunnels, which has the characteristics of high efficiency, high precision and high safety. During the maintenance of the roadheader, boring processing is required to repair or replace certain parts on the roadheader. In order to improve the efficiency and precision of boring processing, a boring tailstock for roadheader maintenance is required for auxiliary support and positioning.

[0003] The boring tailstock is an auxiliary device used in mechanical processing. Its main function is to support and fix the workpiece so that boring processing can be performed on the boring machine. The boring tailstock can ensure the stability and accuracy of the workpiece during the processing. It usually consists of a base, a center and a workpiece support part connected to the center. In the boring process, the main function of the boring tailstock is to support the tail of the workpiece to keep the workpiece stable during the processing. When welding with the workpiece is required, usually one or more centers on the tailstock are welded to a specific part of the workpiece. The center is an important component on the boring tailstock, which is used to align with the symmetrical center line of the workpiece to ensure the accuracy of the boring process.

[0004] Since the base and the center in the boring tailstock are fixed structures, they cannot adapt to the installation requirements of boring materials with different diameters, which may lead to the inability to meet the requirements of various maintenance work and limit its practicality.

[0005] Therefore, this patent needs to be upgraded and modified based on the existing technology. Utility Model Content

[0006] In response to the shortcomings of the prior art, the present application provides a boring tailstock for tunnel boring machine maintenance, which overcomes the shortcomings of the prior art and aims to solve the problem that the base and the top in the boring tailstock are fixed structures and cannot adapt to the installation requirements of boring materials with different diameters, which may lead to the inability to meet the requirements of various maintenance work and limit its practicality.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a boring tail frame for maintenance of a tunnel boring machine, comprising a base plate, a supporting slide groove is provided inside the base plate, a supporting slider is slidably connected inside the supporting slide groove, a supporting shaft is rotatably connected to one end of the outer side of the supporting slider, a fixed slide groove is provided inside the base plate, a second connecting block is slidably connected inside the fixed slide groove at the inner side of the base plate, a hydraulic rod is fixedly connected to the middle position of the second connecting block, and a welding block is fixedly connected to the end of the hydraulic rod.

[0008] By adopting the above technical solution, the inner side of the base plate is aligned with the center position of the hole to be bored, and the four supporting slide blocks in the base plate are slid outward synchronously at this time, so that the supporting slide blocks inside the base plate move along the supporting slide grooves to the outside of the center of the circle until the supporting shaft is attached to the inner wall of the hole to be bored. Since the four supporting slide blocks move outward synchronously, after the supporting shaft is attached to the inner wall of the hole to be bored, the center of the circle of the base plate and the center of the circle of the hole to be bored are in the same straight line, and then the second connecting block is slid so that the second connecting block is located at the wall layer position of the hole to be bored, and the welding block is driven by the hydraulic rod to attach to the wall layer position of the hole to be bored, and then the base plate is fixedly connected to the outside of the hole to be bored as a whole by welding, and then the supporting shaft is pushed off the inner wall of the hole to be bored by the hydraulic rod to ensure the boring work.

[0009] As a preferred technical solution of the present application, a screw rod is rotatably connected inside the support groove, and the screw rod is threadedly connected inside the support slider. A motor is fixedly connected to the outside of the base plate at a position opposite to the support groove, and the motor driving end passes through the base plate and is fixedly connected to one end of the screw rod.

[0010] By adopting the above technical solution, the motor drives the screw rod to rotate, thereby realizing the movement of the support slider inside the support slot, thereby realizing the clamping and fixing of the base plate inside the hole to be bored through the movement of the support slider, and at the same time ensuring that the center of the base plate is aligned with the center of the hole to be bored.

[0011] As a preferred technical solution of the present application, the supporting slider is an I-shaped structure, and the interior of the supporting slider is fitted to the front and rear sides of the base plate.

[0012] By adopting the above technical solution, the overall stability of the supporting sliding block during the sliding process inside the supporting sliding groove is ensured.

[0013] As a preferred technical solution of the present application, a first connecting block is slidably connected to the outside of the base plate inside the fixed slide groove, a bolt is threadedly connected to the inside of the first connecting block, and the end of the bolt is threadedly connected to the inside of the second connecting block.

[0014] By adopting the above technical solution, when the first connecting block is slid, the second connecting block will follow the movement, thereby realizing the movement of the welding block position so that it is aligned with the outer side of the layer wall of the structure to be bored. By tightening the bolts, the first connecting block and the second connecting block are tightened and fixed to the base plate to achieve the fixation of the welding block position.

[0015] As a preferred technical solution of the present application, the first connecting block and the second connecting block are T-shaped structures, and the bottoms of the first connecting block and the second connecting block are inserted into the fixed sliding groove.

[0016] By adopting the above technical solution and the T-shaped structure, it is ensured that the first connecting block and the second connecting block have good stability during clamping and fixing.

[0017] As a preferred technical solution of the present application, a bearing is fixedly connected to the center position inside the base plate.

[0018] By adopting the above technical solution, the boring bar can be supported and friction can be reduced, thereby improving processing accuracy and efficiency.

[0019] Beneficial effects of this application:

[0020] In the utility model, through the setting of the supporting slide groove and the fixed slide groove, when there is a need for boring holes of different diameters, the supporting slider can be moved accordingly inside the supporting slide groove according to the diameter of the hole, so that the supporting shaft at the top of the supporting slider can be attached to the inner wall of the boring hole to form a fixed support, while ensuring that the center of the bottom plate is directly opposite to the center of the boring hole, and then the first connecting block slides inside the fixed slide groove so that the welding block can be against the position of the boring hole layer wall, and then it is welded and fixed, thereby realizing the needs of boring holes of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the front view structure of this application;

[0022] Figure 2 This is a schematic diagram of the back view structure of this application;

[0023] Figure 3 This is a schematic diagram of the side section structure of the support chute of this application;

[0024] Figure 4 This is a schematic diagram of the side cross-section structure of the connection block of the present application.

[0025] In the figure: 1, base plate; 2, supporting slide; 3, fixed slide; 4, bearing; 5, screw; 6, supporting slider; 7, supporting shaft; 8, motor; 9, first connecting block; 10, second connecting block; 11, hydraulic rod; 12, welding block; 13, bolt. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] Reference Figure 1-4, a boring tail frame for maintenance of a tunnel boring machine, comprising a base plate 1, a supporting slide groove 2 is arranged inside the base plate 1, wherein the supporting slide groove 2 is provided with four arranged inside the base plate 1 in a circular arrangement order, a supporting slider 6 is slidably connected inside the supporting slide groove 2, and a supporting shaft 7 is rotatably connected to the outer end of the supporting slider 6. When in use, the inner side of the base plate 1 is aligned with the center position of the hole to be bored, and at this time, the four supporting sliders 6 in the base plate 1 are synchronously slid outward, so that the supporting slider 6 inside the base plate 1 moves along the supporting slide groove 2 toward the outside of the center of the circle until the supporting shaft 7 is attached to the inner wall of the hole to be bored. Since the four supporting sliders 6 move outward synchronously, after the supporting shaft 7 is attached to the inner wall of the hole to be bored, the center of the base plate 1 and the center of the hole to be bored are in the same straight line;

[0028] A fixed slide groove 3 is provided inside the base plate 1. The fixed slide groove 3 has four fixed slide grooves 3 arranged in a circular order inside the base plate 1. A second connecting block 10 is slidably connected to the inner side of the base plate 1 inside the fixed slide groove 3. A hydraulic rod 11 is fixedly connected to the middle position of the second connecting block 10. A welding block 12 is fixedly connected to the end of the hydraulic rod 11. The second connecting block 10 is slidably connected to the wall layer of the hole to be bored. The welding block 12 is driven by the hydraulic rod 11 to fit the wall layer of the hole to be bored. Then, the base plate 1 is fixedly connected to the outside of the hole to be bored as a whole through welding. Then, the hydraulic rod 11 is used to push the supporting shaft 7 away from the inner wall of the hole to be bored, thereby ensuring the boring work.

[0029] In this embodiment, if Figure 1 - Figure 4 As shown, a screw rod 5 is rotatably connected inside the support slot 2, and the screw rod 5 is threadedly connected inside the support slider 6. A motor 8 is fixedly connected to the outside of the base plate 1 at a position opposite to the support slot 2. The driving end of the motor 8 passes through the base plate 1 and is fixedly connected to one end of the screw rod 5. The motor 8 drives the screw rod 5 to rotate, thereby realizing the movement of the support slider 6 inside the support slot 2. Thus, the base plate 1 is clamped and fixed inside the hole to be bored through the movement of the support slider 6, and at the same time, the center of the base plate 1 is aligned with the center of the hole to be bored.

[0030] In this embodiment, if Figure 1 - Figure 4 As shown, the support slider 6 is an I-shaped structure, and the interior of the support slider 6 is fitted to the front and rear sides of the bottom plate 1, so as to ensure the overall stability of the support slider 6 during the sliding process inside the support slide groove 2.

[0031] In this embodiment, if Figure 1 - Figure 4As shown, the outer side of the base plate 1 is located inside the fixed slide groove 3 and is slidably connected with a first connecting block 9, the first connecting block 9 is threadedly connected with a bolt 13, and the end of the bolt 13 is threadedly connected to the inside of the second connecting block 10. When the first connecting block 9 is slid, the second connecting block 10 will follow the movement to realize the movement of the position of the welding block 12 so that it is aligned with the outer side of the layer wall of the structure to be bored. By tightening the bolt 13, the base plate 1 is clamped and fixed between the first connecting block 9 and the second connecting block 10 to realize the fixation of the position of the welding block 12.

[0032] In this embodiment, if Figure 1 - Figure 4 As shown, the first connecting block 9 and the second connecting block 10 are T-shaped structures, and the bottoms of the first connecting block 9 and the second connecting block 10 are inserted into the fixed slide groove 3. The T-shaped structure ensures that the first connecting block 9 and the second connecting block 10 have good stability during clamping and fixing.

[0033] In this embodiment, if Figure 1 - Figure 4 As shown, a bearing 4 is fixedly connected to the center of the base plate 1 to support the boring bar and reduce friction, thereby improving machining accuracy and efficiency.

[0034] Working principle: Align the bottom plate 1 with the position of the hole to be bored in the structure, and then drive the screw rod 5 to rotate through the motor 8, thereby driving the support slider 6 connected to the outer thread of the screw rod 5 to move, so that the support slider 6 moves to the outside of the boring circle center until the support shaft 7 fits the inner wall position of the hole to be bored. Since the support slider 6 is provided with four circumferentially distributed inside, the four support sliders 6 move outward synchronously at the same time;

[0035] When the support shafts 7 at the ends of the four support sliders 6 are attached to the inner wall of the boring hole, the center position of the bottom plate 1 is just aligned with the center position of the hole to be bored, and then the second connection block 10 is slid by the first connection block 9, so that the top welding block 12 of the second connection block 10 is aligned with the position of the boring hole layer wall, and the bolts 13 are tightened to fix the position of the second connection block 10, and the top welding block 12 is pushed to fit the layer wall position by the hydraulic rod 11, and after welding it so that the welding block 12 is fixedly connected to the welding layer wall, the support shaft 7 is separated from the inner wall of the hole to be bored by extending the hydraulic rod 11, thereby completing the installation of the boring tailstock;

[0036] In addition, through the setting of the supporting groove 2 and the fixed groove 3, when there is a need for boring holes of different diameters, the supporting slider 6 can be moved accordingly inside the supporting groove 2 according to the diameter of the hole, so that the supporting shaft 7 on the top of the supporting slider 6 can fit on the inner wall of the boring hole to form a fixed support, while ensuring that the center of the base plate 1 is directly opposite to the center of the boring hole, and then the first connecting block 9 slides inside the fixed groove 3 so that the welding block 12 can be against the position of the boring hole layer wall, and then it is welded and fixed, thereby realizing the needs of boring holes of different diameters.

[0037] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. Although the present application is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A boring tailstock for maintenance of a tunnel boring machine, characterized in that: The invention comprises a base plate (1), wherein a support slide groove (2) is provided inside the base plate (1), wherein a support slider (6) is slidably connected inside the support slide groove (2), wherein one end outside the support slider (6) is rotatably connected to a support shaft (7), wherein a fixed slide groove (3) is provided inside the base plate (1), wherein a second connection block (10) is slidably connected inside the fixed slide groove (3) at an inner position of the base plate (1), wherein a hydraulic rod (11) is fixedly connected at a middle position of the second connection block (10), and a welding block (12) is fixedly connected at the end of the hydraulic rod (11).

2. The boring tailstock for maintenance of a tunnel boring machine according to claim 1, characterized in that: A screw rod (5) is rotatably connected inside the support slide groove (2), and the screw rod (5) is threadedly connected inside the support slider (6). A motor (8) is fixedly connected to the outside of the base plate (1) at a position opposite to the support slide groove (2), and the driving end of the motor (8) passes through the base plate (1) and is fixedly connected to one end of the screw rod (5).

3. The boring tailstock for maintenance of a tunnel boring machine according to claim 1, characterized in that: The supporting slide block (6) is an I-shaped structure, and the interior of the supporting slide block (6) is fitted on the front and rear sides of the bottom plate (1).

4. The boring tailstock for maintenance of a tunnel boring machine according to claim 1, characterized in that: A first connection block (9) is slidably connected to the outside of the bottom plate (1) and located inside the fixed slide groove (3); a bolt (13) is threadedly connected to the inside of the first connection block (9); and the end of the bolt (13) is threadedly connected to the inside of the second connection block (10).

5. The boring tailstock for maintenance of a tunnel boring machine according to claim 4, characterized in that: The first connecting block (9) and the second connecting block (10) are T-shaped structures, and the bottoms of the first connecting block (9) and the second connecting block (10) are inserted into the fixed sliding groove (3).

6. The boring tailstock for maintenance of a roadheader according to claim 1, characterized in that: A bearing (4) is fixedly connected to the center position inside the base plate (1).

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