Airborne temporary supporting device

Abstract

The utility model relates to the technical field of heading machine supporting, in particular to an onboard temporary supporting device which comprises a cutting part, a supporting arm and a support, the cutting part is connected with the supporting arm in a hinged structure mode, a connecting piece is arranged at the end, away from a hinged point, of the supporting arm and connected with the support, and the connecting piece comprises a mounting base of a U-shaped structure. The mounting seat is arranged at the end part of the supporting arm through a hinge structure; the pin shaft is provided with an end cap, one end, far away from the end cap, of the pin shaft penetrates through the side wall of the mounting seat and extends outwards, and the pin shaft is connected with the mounting seat in a sliding structure mode; the end, away from the end cap, of the pin shaft is provided with a lug plate in a fixed structure mode, the pin shaft between the lug plate and the mounting base is sleeved with a spring, the lug plate and the mounting base form an adjusting structure, the support can be attached to the tunnel face, the attaching degree is improved, stone falling caused by hard-to-hard connection of the support and the tunnel face can be avoided, and the service life of the support is prolonged. And the safety is improved.

Description

Technical Field

[0001] This application relates to the field of tunneling machine support technology, and in particular to airborne temporary support devices. Background Technology

[0002] A tunnel boring machine (TBM) is a machine used to excavate tunnels underground in flat ground. It mainly consists of a traveling mechanism, a working mechanism, a loading mechanism, and a transfer mechanism. As the traveling mechanism advances forward, the cutting head in the working mechanism continuously breaks up the rock and removes the broken rock.

[0003] The invention patent with application number CN202210942292.5 is a support component and a tunneling machine. The support component is applied to the tunneling machine and includes: a base; a drive component, one end of which is connected to the tunneling machine and the other end of which is connected to the base, for driving the base to move; a support plate, which is disposed on the base and is used to support the anchor net; and a beam assembly, which is disposed on the base and is used to lift and support the top beam.

[0004] This patent application uses support components to lift the anchor net for net hanging operations. However, because the tunnel surface is not flat, the anchor net cannot adhere well to the tunnel surface. Furthermore, the collision of the support components can cause loose rocks to fall off, potentially injuring the tunneling machine or operators, posing a significant safety hazard. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an airborne temporary support device, and the technical solution adopted is as follows:

[0006] An airborne temporary support device includes a cutting section, a support arm, and a bracket. The cutting section and the support arm are connected by a hinged structure. The cutting section is equipped with a telescopic cylinder for driving the hinge of the support arm. A connector is provided at the end of the support arm away from the hinge point. The connector is connected to the bracket. The connector includes:

[0007] Mounting base, which is hinged to the end of the support arm;

[0008] A pin with an end cap, the end of the pin away from the end cap extends outward through the side wall of the mounting base, and the pin is connected to the mounting base in a sliding manner.

[0009] Ear plate, the ear plate is connected to the end of the pin away from the end cap by a fixed structure, and the ear plate is connected to the bracket;

[0010] The spring is sleeved on the outside of the pin between the ear plate and the mounting base.

[0011] Furthermore, an adjusting cylinder is provided on the side of the support arm away from the telescopic cylinder in a hinged structure, and the adjusting cylinder is connected to the bracket through a connector.

[0012] Furthermore, the lower part of the support arm is connected to the telescopic cylinder in a hinged structure, and the side wall of the support arm away from the telescopic cylinder is provided with a fixing plate in a fixed structure. The end of the fixing plate away from the support arm is hinged to the cutting part through a shaft.

[0013] When the output shaft of the telescopic cylinder retracts, the bracket fits against the side of the cutting section.

[0014] Furthermore, the ear plate has a horizontal sliding groove, and the sliding groove is equipped with a slider in a sliding structure. The slider is equipped with hinge seats on both sides in a fixed structure, and the hinge seats are fixedly located on the lower end face of the bracket.

[0015] Furthermore, the mounting base is arranged in a U-shape.

[0016] The beneficial effects of this utility model are: by installing a spring on the outer sleeve of the pin, the ear plate and the mounting base form an adjustment structure, so that the bracket can conform to the tunnel surface and fit, improving the fit and avoiding the falling of stones caused by the hard contact between the bracket and the tunnel surface, thus preventing safety accidents and improving safety. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of the connector structure of this utility model.

[0019] In the picture:

[0020] 1. Cutting section, 2. Support arm, 3. Bracket, 4. Telescopic cylinder, 5. Connector, 6. Mounting base, 7. End cap, 8. Pin, 9. Ear plate, 10. Adjusting cylinder, 11. Slider, 12. Fixing plate. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the utility model will now be described in further detail with reference to the accompanying drawings and the following embodiments, so that the public can better understand the implementation method of this utility model. The specific implementation scheme of this utility model is as follows:

[0022] An airborne temporary support device includes a cutting section 1, a support arm 2, and a bracket 3. The cutting section 1 and the support arm are connected by a hinge structure. The cutting section 1 is equipped with a telescopic cylinder 4 for driving the hinge of the support arm. A connector 5 is provided at the end of the support arm away from the hinge point. The connector 5 is connected to the bracket 3. The connector 5 is characterized by including a U-shaped mounting seat 6, which is hinged at the end of the support arm; a pin 8 with an end cap 7, the end of the pin 8 away from the end cap 7 extending outward through the side wall of the mounting seat 6, and the pin 8 being connected to the mounting seat 6 by a sliding structure; and an ear plate 9 fixedly provided at the end of the pin 8 away from the end cap 7, which is connected to the bracket 3. A spring is sleeved on the outside of the pin 8 between the ear plate 9 and the mounting seat 6, so that the ear plate 9 and the mounting seat 6 form an adjustment structure. This allows the bracket 3 to conform to the tunnel surface, improving the fit and preventing rocks from falling off due to the hard contact between the bracket 3 and the tunnel surface, thus preventing safety accidents and improving safety.

[0023] It should be noted that the lower part of the support arm 2 is connected to the telescopic cylinder 4 in a hinged structure. The side wall of the support arm 2 away from the telescopic cylinder 4 is provided with a fixing plate 12 in a fixed structure. The end of the fixing plate 12 away from the support arm 2 is hinged to the cutting part 1 through a shaft. When the output shaft of the telescopic cylinder 4 retracts, the bracket 3 fits against the side of the cutting part 1, which can protect the output shaft in the working state.

[0024] It should be noted that an adjusting cylinder 10 is provided on the side of the support arm 2 away from the telescopic cylinder 4 in a hinged structure. The adjusting cylinder 10 is connected to the bracket 3 through the connector 5. The angle between the bracket 3 and the support arm 22 is adjusted by adjusting the adjusting cylinder 10 to meet the needs of different tunnel surfaces.

[0025] It should be noted that the ear plate 9 has a horizontal sliding groove, and the sliding groove is equipped with a slider 11 in a sliding structure. The slider 11 has hinge seats on both sides in a fixed structure. The hinge seats are fixedly set on the lower end face of the bracket 3, so that the bracket 3 can move left and right, improving its adaptability to tunnels.

[0026] The working principle and process of this utility model are as follows:

[0027] When temporary support devices are needed, the telescopic cylinder 4 is activated, and the output shaft of the telescopic cylinder 4 retracts, driving the support arm 2 to rotate around the hinge point between the fixed plate 12 and the cutting part 1. The angle between the support arm 2 and the bracket 3 is adjusted by adjusting the cylinder 10 to ensure contact with the tunnel slope. When the bracket 3 contacts the tunnel surface, the pressure is transmitted to the spring through the ear plate 9. The spring is compressed, and then the end of the pin 8 with the end cap 7 extends into the mounting seat 6 to complete the adjustment. It should be noted that there is no reciprocating motion of the spring. That is, the original hard-to-hard connection is improved to floating contact to solve the technical problem of loose rocks falling off due to collision.

[0028] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "left," "right," "front," "rear," "lower left," "upper right," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Although this utility model has been described according to a limited number of embodiments, those skilled in the art should understand from the above description that other embodiments can be conceived within the scope of this utility model described herein.

Claims

1. An airborne temporary support device, comprising a cutting section (1), a support arm (2), and a bracket (3), wherein the cutting section (1) and the support arm (2) are connected by a hinge structure, the cutting section (1) is provided with a telescopic cylinder (4) for driving the support arm (2) to hinge, and a connector (5) is provided at the end of the support arm (2) away from the hinge point, the connector (5) being connected to the bracket (3), characterized in that, The connector (5) includes: Mounting base (6), which is hinged to the end of the support arm (2); A pin (8) with an end cap (7) has one end of the pin (8) away from the end cap (7) extending outward through the side wall of the mounting base (6), and the pin (8) is connected to the mounting base (6) in a sliding structure. Ear plate (9), ear plate (9) is connected to the end of pin (8) away from end cap (7) in a fixed structure, and ear plate (9) is connected to bracket (3); A spring is fitted outside the pin (8) between the ear plate (9) and the mounting base (6).

2. The airborne temporary support device according to claim 1, characterized in that: An adjusting cylinder (10) is provided on the side of the support arm (2) away from the telescopic cylinder (4) in a hinged structure. The adjusting cylinder (10) is connected to the bracket (3) through a connector (5).

3. The airborne temporary support device according to claim 2, characterized in that: The lower part of the support arm (2) is connected to the telescopic cylinder (4) in a hinged structure. The side wall of the support arm (2) away from the telescopic cylinder (4) is provided with a fixing plate (12) in a fixed structure. The end of the fixing plate (12) away from the support arm (2) is hinged to the cutting part (1) through a shaft. When the output shaft of the telescopic cylinder (4) retracts, the bracket (3) fits against the side of the cutting part (1).

4. The airborne temporary support device according to claim 2, characterized in that: The ear plate (9) has a horizontal sliding groove, and the sliding groove is equipped with a slider (11) in a sliding structure. The slider (11) has hinge seats on both sides in a fixed structure, and the hinge seats are fixed on the lower end face of the bracket (3).

5. The airborne temporary support device according to claim 1, characterized in that: The mounting base (6) is U-shaped.

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