Driving-in assembly and driving-in mechanism for elastic cylindrical pin of track shoe of heading machine

Abstract

The utility model discloses a driving assembly for an elastic cylindrical pin of a track shoe of a heading machine, which comprises a first hammering element used for driving the elastic cylindrical pin into the track shoe of the heading machine under the action of a pneumatic tool, and the first hammering element comprises an inserting part and a second hammering element, a mounting hole is formed in the center of the connecting part, and the connecting part is used for being inserted into a tool head of the pneumatic tool; the arc-shaped part is seamlessly connected with the tail end of the connecting part and expands outwards from the tail end in an arc shape; the two ends of the boss part are seamlessly connected with the tail end of the arc-shaped part and the front end of the connecting part respectively, and the boss part is used for hooking a spring of the pneumatic tool. The driving-in assembly is simple in structure, convenient to use and wide in application range, the labor intensity of an operator is reduced, and the working efficiency of the operator is improved. In addition, the utility model further provides a driving-in mechanism with the driving-in assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel boring machines, in particular to a driving component and a driving mechanism for an elastic cylindrical pin of a track plate of a tunnel boring machine. Background Art

[0002] A tunnel boring machine is used in the process of coal mining. After the two track plates of the existing tunnel boring machine are connected with a pin shaft, elastic cylindrical pins are needed to be fixed on both sides. Currently, when assembling the elastic cylindrical pins, a hammer is usually used to directly hammer them into the corresponding pin holes on the track plates.

[0003] There is no big problem when assembling one or two elastic cylindrical pins by using the above-mentioned assembly method. However, the number of single elastic cylindrical pins used on each track plate of a tunnel boring machine is about 200. If double elastic cylindrical pins (i.e., a small-diameter elastic cylindrical pin is inserted into a large-diameter elastic cylindrical pin) are used at the same time, the number of cylindrical pins will be about 400. If the existing hammering method is still used for assembly, the labor intensity for the operator is very high and the work efficiency is not high. Therefore, there is an urgent need in the art for a mechanism that can improve the assembly efficiency of elastic cylindrical pins on the track of a tunnel boring machine. Summary of the invention

[0004] The purpose of the utility model is to solve the above-mentioned problem and to provide a driving assembly and driving mechanism for an elastic cylindrical pin of a track plate of a tunnel boring machine, which has a simple structure, is easy to use, reduces the labor intensity of the operator, improves the work efficiency of the operator, and has a wide range of applications.

[0005] In order to achieve the above-mentioned purpose of the utility model, on the one hand, the utility model provides an insertion assembly for an elastic cylindrical pin of a tunnel boring machine track plate, which is used to drive the elastic cylindrical pin into the pin hole of the tunnel boring machine track plate, including a first hammering element for driving the elastic cylindrical pin part into the tunnel boring machine track plate under the action of a pneumatic tool, and the first hammering element includes: an insertion portion with a pin hole for accommodating the elastic cylindrical pin in the center; a connecting portion with an accommodating hole in the center and used for being inserted into the tool head of the pneumatic tool; an arc-shaped portion seamlessly connected to the end of the connecting portion and expanding outward in an arc shape from the end; and a boss portion on the spring whose two ends are seamlessly connected to the end of the arc-shaped portion and the front end of the connecting portion respectively and used for hooking the pneumatic tool.

[0006] Preferably, the diameter of the insertion portion is greater than the diameter of the connecting portion.

[0007] Preferably, the diameter of the boss portion is greater than the diameter of the insertion portion.

[0008] Preferably, it also includes a second hammering element for driving the elastic cylindrical pin completely into the track shoe of the tunnel boring machine under the action of a pneumatic tool.

[0009] Preferably, the second hammering element includes: a cylindrical insertion portion; a cylindrical connecting portion for being inserted into the tool head of the pneumatic tool; an arc-shaped portion seamlessly connected to the end of the connecting portion and expanding outward in an arc shape from the end; and a boss portion on both ends which are seamlessly connected to the end of the arc-shaped portion and the front end of the connecting portion and are used to hook the spring of the pneumatic tool.

[0010] Preferably, it also includes an adsorbent disposed on the first hammering element for adsorbing the elastic cylindrical pin.

[0011] Preferably, the adsorbent is a permanent magnet.

[0012] In addition, the utility model also provides a driving mechanism for an elastic cylindrical pin of a track plate of a tunnel boring machine, which comprises the driving assembly as described above.

[0013] Preferably, the driving mechanism further comprises: a pneumatic tool for connecting to the first hammering element or the second hammering element of the driving assembly; and a gas source generator connected to the pneumatic tool for providing gas thereto. Preferably, the first hammering element comprises: an insertion portion with a pin hole in the center for accommodating the elastic cylindrical pin; a connecting portion with an accommodating hole in the center for inserting into the tool head of the pneumatic tool; an arc-shaped portion seamlessly connected to the end of the connecting portion and expanding outward in an arc shape from the end; and boss portions on the spring of the pneumatic tool, each of which is seamlessly connected to the end of the arc-shaped portion and the front end of the connecting portion and is used to hook the spring.

[0014] Preferably, the second hammering element includes: a cylindrical insertion portion; a cylindrical connecting portion for being inserted into the tool head of the pneumatic tool; an arc-shaped portion seamlessly connected to the end of the connecting portion and expanding outward in an arc shape from the end; and a boss portion on both ends which are seamlessly connected to the end of the arc-shaped portion and the front end of the connecting portion and are used to hook the spring of the pneumatic tool.

[0015] Compared with the prior art, the driving assembly and driving mechanism of the elastic cylindrical pin of the track plate of the tunnel boring machine of the utility model have a simple structure, are easy and quick to use, and have a low production cost. High-pressure wind is used as a power source, and the elastic cylindrical pin can be driven into the pin hole of the track plate of the tunnel boring machine through a driving assembly installed on a pneumatic tool. No manual hammering is required, which reduces the labor intensity of the operator and improves the work efficiency of the operator. The utility model is not only used on tunnel boring machines, but also can be used in equipment with tracks as walking mechanisms, such as crawler cranes, excavators, tractors and tanks, etc., and has the advantage of a wide range of applications.

[0016] The utility model is described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a structural schematic diagram of the driving mechanism of the elastic cylindrical pin of the track plate of the tunnel boring machine of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the first hammering element of the utility model from a first perspective;

[0019] Figure 3 It is a structural schematic diagram of the first hammering element of the utility model from a second viewing angle;

[0020] Figure 4 It is a partial half-section diagram of the connection of the elastic cylindrical pin, the first hammering element and the pneumatic tool head of the utility model (the spring is not shown);

[0021] Figure 5 It is a perspective view of the utility model when the elastic cylindrical pin, the first hammering element and the pneumatic tool head are connected (the spring is not shown);

[0022] Figure 6 It is a schematic diagram of the structure of the utility model using elastic cylindrical pins of two diameters;

[0023] Figure 7 It is a partial schematic diagram of the first hammering element of the utility model after being connected to the spring of the pneumatic tool;

[0024] Figure 8 It is a structural schematic diagram of the second hammering element of the utility model;

[0025] Figure 9-11 It is a schematic diagram of the different stages of driving an elastic cylindrical pin into the pin hole of a track shoe of a tunnel boring machine. DETAILED DESCRIPTION

[0026] like Figure 1 As shown in FIG. 1 , it is a schematic diagram of the structure of the driving mechanism of the elastic cylindrical pin of the crawler plate of the tunnel boring machine of the present invention. Figure 2-Figure 8 The figures are schematic diagrams of the structure of the first hammering element, the second hammering element and the connection of the first hammering element with other parts in the driving assembly of the elastic cylindrical pin of the crawler plate of the tunnel boring machine according to the utility model.

[0027] Depend on Figure 1It can be seen that the driving mechanism of the utility model includes: a pneumatic tool 4; a gas source generator 1 connected to the pneumatic tool for providing gas therefor; a driving assembly connected to the pneumatic tool for driving an elastic cylindrical pin into a pin hole (not shown in the figure) of a track plate of a tunnel boring machine under the action of the pneumatic tool, which includes: a first hammering element 6 for accommodating an elastic cylindrical pin 7 at one end and for connecting the pneumatic tool at the other end and reciprocating with the piston of the pneumatic tool to drive part of the elastic cylindrical pin into the pin hole of the track plate of the tunnel boring machine; an adsorbent (not shown in the figure) for adsorbing the elastic cylindrical pin disposed on the first hammering element. In addition, it also includes: a second hammering element 8 for contacting the elastic cylindrical pin at one end and for connecting the pneumatic tool at the other end and reciprocating with the piston of the pneumatic tool to drive the elastic cylindrical pin completely into the pin hole of the track plate of the tunnel boring machine.

[0028] Specifically, the air source generator 1 of the utility model is connected to the air pipe joint 3 through the hose 2, the air pipe joint is connected to the air inlet of the pneumatic tool 4, the end of the first hammering element or the second hammering element is placed in the tool head of the pneumatic tool, and the spring 9 of the pneumatic tool is hooked on the end of the first hammering element or the second hammering element to connect it to the tool head (see Figure 7 ), and the end of the elastic cylindrical pin to be driven into the pin hole of the track shoe of the tunnel boring machine is inserted into the front end of the first hammering element.

[0029] Among them, the air source generator can adopt the generator that can provide high-pressure wind in the existing technology, and the pneumatic tool can adopt the pneumatic shovel or pneumatic hammer in the existing technology. Therefore, this article does not describe the structure of the air source generator and the pneumatic tool in detail.

[0030] The utility model uses the high-pressure wind provided by the air source generator as the power source, and drives the specially designed first hammering element and the second hammering element through the pneumatic tool to hammer the elastic cylindrical pin twice, and the lower part of the elastic cylindrical pin located just above the pin hole of the track plate of the tunnel boring machine is driven into the pin hole of the track plate of the tunnel boring machine through the first hammering element (see Fig. 9 , Fig.10 ), the upper part of the elastic cylindrical pin hammered by the first hammering element is driven into the pin hole by the second hammering element so that the elastic cylindrical pin is completely inserted into the pin hole (see Fig.11 ). Among them, the principle that the piston of the pneumatic tool drives the first hammering element and the second hammering element to reciprocate relative to the tool head of the pneumatic tool when the pneumatic tool is working is the same as that in the prior art, and will not be described in detail here.

[0031] Among them, Figure 2-Figure 5It can be seen that the first hammering element of the driving assembly of the utility model comprises: an inserting portion 62 with a pin hole 66 for accommodating an elastic cylindrical pin in the center; a connecting portion 61 with an accommodating hole 65 in the center and used for being inserted into the tool head of the pneumatic tool; an arc-shaped portion 64 seamlessly connected to the end of the connecting portion and expanding outward in an arc shape from the end; a spring 9 (see FIG. 1 ) with two ends seamlessly connected to the end of the arc-shaped portion and the front end of the connecting portion and used for hooking on the pneumatic tool Figure 7 ) on the boss portion 63. When designed, the diameter of the insertion portion is larger than the diameter of the connecting portion, the diameter of the boss portion is larger than the diameter of the insertion portion, and the size of the pin hole is larger than the outer diameter of the elastic cylindrical pin.

[0032] Furthermore, it also includes an adsorbent for adsorbing the elastic cylindrical pin, which is a permanent magnet, and is arranged on the first hammering element. During manufacturing, the shape of the permanent magnet is adapted to the shape of the placement hole of the connecting portion so that the permanent magnet can be placed in the placement hole. The elastic cylindrical pin placed in the column pin hole of the insertion portion can be adsorbed by the permanent magnet, so that it will not fall out of the column pin hole easily after assembly. When the pneumatic tool is working, under the action of the piston in the tool head, the first hammering element is driven to move, so that the lower part of the elastic cylindrical pin is driven into the pin hole of the track plate of the tunnel boring machine.

[0033] Among them, Figure 8 As shown, the second hammering element of the utility model for driving the elastic cylindrical pin completely into the pin hole of the track plate of the tunnel boring machine under the action of the pneumatic tool comprises: a cylindrical insertion part; a cylindrical connecting part for inserting into the tool head of the pneumatic tool; an arc-shaped part seamlessly connected to the end of the connecting part and expanding outward in an arc shape from the end; and a boss part whose two ends are seamlessly connected to the end of the arc-shaped part and the front end of the connecting part and used to hook on the spring of the pneumatic tool. Figure 8 It can be seen that the appearance of the second hammering element is basically the same as that of the first hammering element, except that no pin hole is provided on the insertion portion of the second hammering element and no placement hole is provided in the center of the connecting portion.

[0034] During the design, the connecting portion, the inserting portion, the arc portion, and the boss portion of the second hammering element are all the same size as those of the first hammering element. The connecting portion is adapted to the size of the tool head of the pneumatic tool. The end of the spring (which is the prior art and can be a torsion spring) installed on the tool head can be hooked on the boss of the hammering element (see Figure 7 ) thereby connecting the hammering element to the tool head so that the hammering element can reciprocate relative to the tool head driven by the piston.

[0035] When the driving assembly of the utility model is used to drive an elastic cylindrical pin into the pin hole of the track plate of a tunnel boring machine, the steps are as follows: first, the first hammering element is installed on the tool head of the pneumatic tool, and then the elastic cylindrical pin is installed in the pin hole of the first hammering element. At this time, the cylindrical pin can be adsorbed by the permanent magnet and will not fall out of the pin hole. Then, the pneumatic tool and the first hammering element are placed directly above the pin hole of the track plate of the tunnel boring machine, and the gas source generator provides gas to make the pneumatic tool work. The piston in the tool head will reciprocate along the axial direction and drive the first hammering element to follow, so that the lower part of the elastic cylindrical pin is driven into the pin hole. After that, the first hammering element is removed, and the second hammering element is installed on the tool head to make the pneumatic tool work. Then, the second hammering element will move with the piston in the tool head, so that the lower part of the elastic cylindrical pin driven into the pin hole is completely driven into the pin hole.

[0036] It should be noted that the driving assembly of the utility model can drive an elastic cylindrical pin into the pin hole of the track plate of the tunnel boring machine, or two elastic cylindrical pins with different diameters (see Figure 6 When two elastic cylindrical pins are driven into the same pin hole of the track shoe of the tunnel boring machine, the first hammering element is used to drive the elastic cylindrical pin into the position of half the length of the elastic cylindrical pin, and then the elastic cylindrical pin with a smaller diameter is driven into the position of half the length of the inner hole of the elastic cylindrical pin with a larger diameter by the first hammering element, and finally the second hammering element is replaced and used to drive the two elastic cylindrical pins of different diameters completely into the pin hole.

[0037] The driving assembly and driving mechanism of the utility model have a simple structure of the first hammering element and the second hammering element, low production cost, and are easy and quick to use. The two hammering elements are driven by a pneumatic tool to hammer the cylindrical pin, which greatly reduces the labor intensity of the operator and improves the work efficiency of the operator. The driving assembly can be used not only on a tunneling machine, but also in equipment with crawlers as a walking mechanism, such as crawler cranes, excavators, tractors and tanks, and has a very wide range of applications.

[0038] Although the utility model is described in detail above, the utility model is not limited thereto, and technicians in this technical field can make modifications based on the principles of the utility model. Therefore, all kinds of modifications made according to the principles of the utility model should be understood to fall within the protection scope of the utility model.

Claims

1. A driving assembly for elastic cylindrical pins of a track plate of a tunnel boring machine, characterized in that: The invention comprises a first hammering element for driving a resilient cylindrical pin portion into a track shoe of a tunnel boring machine under the action of a pneumatic tool, wherein the first hammering element comprises: An inserting portion for accommodating a pin hole of the elastic cylindrical pin is provided in the center; A connecting portion having a placement hole at the center and used for being inserted into a tool head of the pneumatic tool; An arc-shaped portion seamlessly connected to the end of the connecting portion and expanding outward in an arc shape from the end; The two ends are seamlessly connected to the end of the arc-shaped portion and the front end of the connecting portion respectively and are used for hooking the boss portion on the spring of the pneumatic tool.

2. The driving assembly according to claim 1, characterized in that The diameter of the insertion portion is greater than the diameter of the connection portion.

3. The driving assembly according to claim 1 or 2, characterized in that: The boss portion has a diameter greater than that of the insertion portion.

4. The driving assembly according to claim 3, characterized in that It also includes a second hammering element for driving the elastic cylindrical pin completely into the track shoe of the tunnel boring machine under the action of a pneumatic tool.

5. The driving assembly according to claim 4, characterized in that The second hammering element comprises: A cylindrical insertion portion; A connecting portion which is cylindrical and is used to be inserted into a tool head of the pneumatic tool; An arc-shaped portion seamlessly connected to the end of the connecting portion and expanding outward in an arc shape from the end; The two ends are seamlessly connected to the end of the arc-shaped portion and the front end of the connecting portion respectively and are used for hooking the boss portion on the spring of the pneumatic tool.

6. The driving assembly according to claim 5, characterized in that It also includes an absorbent disposed on the first hammering element and used for absorbing the elastic cylindrical pin.

7. The driving assembly according to claim 6, characterized in that The adsorbent is a permanent magnet.

8. A driving mechanism for elastic cylindrical pins of a track plate of a tunnel boring machine, characterized in that: The invention comprises a driving assembly as claimed in any one of claims 1 to 7.

9. The driving mechanism according to claim 8, characterized in that: Also includes: a pneumatic tool for connecting to the first hammering element or the second hammering element of the driving assembly; A gas source generator connected to a pneumatic tool for providing gas thereto.

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