Working device capable of realizing positive and negative clamping of steel arch

Abstract

A working device capable of clamping a steel arch positively and negatively relates to the technical field of steel arch clamping equipment, a sliding jaw is mounted in a base, a clamping end of the sliding jaw is positioned in a sliding groove and slidably connected with the sliding groove, a limiting jaw is mounted on the base, and the position of the limiting jaw corresponds to that of the clamping end of the sliding jaw. A sliding groove is formed in the base, two gaskets are arranged on the upper surface of the base and located on the two sides of the sliding groove respectively, the two guide rails are both located in the base and fixedly connected, the two guide rails are located on the two sides of the sliding groove respectively, and a sliding block is slidably connected between the two guide rails; according to the working device capable of achieving forward and reverse clamping of the steel arch, the steel arch needing to be clamped is limited through the limiting clamping jaw, the steel arch is clamped through the sliding clamping jaw, the structure is compact, adjustment by workers is facilitated, and forward clamping or reverse clamping of a single-truss arch and multiple-truss arches with different widths can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel arch frame clamping equipment, in particular to a working device capable of realizing positive and negative clamping of a steel arch frame. Background Art

[0002] Steel arch support is a key process in the initial support of tunnels. It can effectively control the deformation of surrounding rock and prevent collapse. When using a steel arch installation trolley to install the arch, different working devices are required to clamp the arch in accordance with different arch structures (such as single-frame arch, multi-frame arch), space dimensions, and installation process requirements. For example, forward clamping - clamping from the outside of the structure to the inside, and reverse clamping - clamping from the inside of the structure to the outside. Utility Model Content

[0003] In order to overcome the shortcomings of the background technology, the utility model discloses a working device that can realize positive and negative clamping of a steel arch frame. The utility model limits the steel arch frame that needs to be clamped by a limiting claw, and clamps the steel arch frame by a sliding claw. The structure is compact, and the staff can adjust it conveniently. It can meet the needs of positive clamping or reverse clamping of a single arch frame or multiple arch frames of different widths.

[0004] In order to achieve the purpose of the utility model, the utility model adopts the following technical solutions:

[0005] A working device capable of realizing positive and negative clamping of a steel arch frame comprises a base, and a sliding groove is provided on the base, a sliding claw is installed in the base, and the clamping end of the sliding claw is located in the sliding groove and is slidably connected, a limiting claw is installed on the base, and the position of the limiting claw corresponds to the position of the clamping end of the sliding claw.

[0006] The upper surface of the base is provided with two gaskets, and the two gaskets are respectively located on both sides of the sliding groove.

[0007] The sliding claw includes a T-shaped claw, a guide rail, a telescopic cylinder, an articulated seat, a slider and a cylinder hinge seat. There are two guide rails, both of which are located in the base and fixedly connected, and the two guide rails are respectively located on both sides of the sliding groove. A slider is slidably connected between the two guide rails, and the upper and lower sides of the slider are respectively fixedly connected with the T-shaped claw and the cylinder hinge seat. The T-shaped claw is located in the sliding groove and slidably connected, the articulated seat is located in the base and fixedly connected, and a telescopic cylinder is hinged in the articulated seat, and the telescopic end of the telescopic cylinder is hinged to the cylinder hinge seat.

[0008] The limiting claw includes a bottom plate, a flip claw, a fixing pin and a positioning seat. The bottom plate is located on the base and connected by bolts. Two positioning seats are fixedly connected to the bottom plate, and the positioning seat is connected to the flip claw through a fixing pin.

[0009] The positioning seat and the flip claw are respectively provided with an insertion groove, and the insertion groove on the flip claw corresponds to the insertion groove on the positioning seat, and a positioning pin is slidably connected in the insertion groove.

[0010] The bottom plate is also connected to the assembly claws via bolts.

[0011] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0012] The utility model discloses a working device capable of realizing positive and negative clamping of a steel arch frame. The steel arch frame to be clamped is limited by a limiting claw, and the steel arch frame is clamped by a sliding claw. The structure is compact and adjustment is convenient for staff. The device can meet the requirements of positive clamping or reverse clamping of a single arch frame or multiple arch frames of different widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a cross-sectional view of the utility model;

[0015] Figure 3 It is a schematic diagram of the local structure of the sliding claw of the utility model;

[0016] Figure 4 This is a schematic diagram of the limit claw structure of the utility model;

[0017] Figure 5 This is a schematic diagram of the installation of the assembly claw of the utility model;

[0018] Figure 6 This is a schematic diagram of the assembly claw structure of the utility model;

[0019] Figure 7 This is a schematic diagram of the clamping state of the utility model;

[0020] 1. Base; 2. Sliding claw; 201. T-shaped claw; 202. Guide rail; 203. Telescopic cylinder; 204. Articulated seat; 205. Sliding block; 206. Cylinder hinge seat; 3. Limiting claw; 301. Bottom plate; 302. Positioning pin; 303. Flipping claw; 304. Fixing pin; 305. Positioning seat; 306. Assembly claw. DETAILED DESCRIPTION

[0021] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0022] Combined with Figures 1 to 7The working device capable of realizing positive and negative clamping of a steel arch frame comprises a base 1, and a sliding groove is provided on the base 1, a sliding claw 2 is installed in the base 1, and the clamping end of the sliding claw 2 is located in the sliding groove and is slidably connected, a limiting claw 3 is installed on the base 1, and the position of the limiting claw 3 corresponds to the position of the clamping end of the sliding claw 2.

[0023] Two gaskets are provided on the upper surface of the base 1, and the two gaskets are respectively located on both sides of the sliding groove.

[0024] The sliding claw 2 includes a T-claw 201, a guide rail 202, a telescopic cylinder 203, a hinge seat 204, a slider 205 and a cylinder hinge seat 206. There are two guide rails 202. The two guide rails 202 are both located in the base 1 and fixedly connected, and the two guide rails 202 are respectively located on both sides of the sliding groove. A slider 205 is slidably connected between the two guide rails 202, and the upper and lower sides of the slider 205 are respectively fixedly connected with the T-claw 201 and the cylinder hinge seat 206. The T-claw 201 is located in the sliding groove and is slidably connected. The hinge seat 204 is located in the base 1 and fixedly connected, and the telescopic cylinder 203 is hinged in the hinge seat 204. The telescopic end of the telescopic cylinder 203 is hinged to the cylinder hinge seat 206. The telescopic cylinder 203 can be two-stage or multi-stage telescopic, which can achieve a smaller installation distance and a larger working stroke, and provide power for the clamping of arch frames of different widths.

[0025] The limiting claw 3 includes a bottom plate 301, a flip claw 303, a fixing pin 304 and a positioning seat 305. The bottom plate 301 is located on the base 1 and is connected by bolts. Two positioning seats 305 are fixedly connected to the bottom plate 301, and the positioning seat 305 is connected to the flip claw 303 through a fixing pin 304. The flip claw 303 provides two contact surfaces, so that clamping in two directions can be achieved.

[0026] The positioning seat 305 and the flip claw 303 are respectively provided with insertion grooves, and the insertion groove on the flip claw 303 corresponds to the insertion groove on the positioning seat 305. A positioning pin 302 is slidably connected in the insertion groove, and the flip claw 303 is positioned by the positioning pin 302.

[0027] The base plate 301 is also connected to the assembly claw 306 by bolts. The staff replaces the flip claw 303 or the assembly claw 306 on the base plate 301 according to the different structural types of the steel arch frame, so as to facilitate the clamping of steel arch frames of different structural types. By installing the assembly claw 306 in different directions, forward clamping or reverse clamping can be achieved.

[0028] When the flip claw 303 or the assembly claw 306 faces the T-shaped claw 201, an arch frame such as an I-beam can be clamped. When the flip claw 303 or the assembly claw 306 faces the other side of the T-shaped claw 201, a tic-tac-toe-shaped, Japanese-shaped or other arch frames with similar structures can be clamped.

[0029] The working device that can realize the positive and negative clamping of the steel arch frame is described. When in use, the staff adjusts the direction of the flip claw 303 or the assembly claw 306 according to the different types of the clamped steel arch frame. When the flip claw 303 or the assembly claw 306 is facing the T-shaped claw 201, the arch frame such as the I-beam can be clamped. When the flip claw 303 or the assembly claw 306 is facing the other side of the T-shaped claw 201, the arch frame of the tic-tac-toe shape, the Chinese-Japanese shape or other similar structures can be clamped. The sliding block 205 fixed with the T-shaped claw 201 is driven to move by the telescopic cylinder 203 through the connection between the flip claw 303 or the assembly claw 306 and one side of the steel arch frame, so that the T-shaped claw 201 is connected to the other side of the steel arch frame, and the arch frame can be clamped.

[0030] The parts of the present invention that are not described in detail are prior art. Although the present invention is specifically demonstrated and introduced in conjunction with the preferred implementation scheme, there are many methods and ways to implement the technical solution. The above is only a preferred implementation scheme of the present invention. However, technical personnel in the relevant field should understand that various changes can be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined in the attached claims, which are all within the scope of protection of the present invention.

Claims

1. A working device capable of realizing positive and negative clamping of a steel arch, comprising a base (1), wherein the base (1) is provided with a sliding groove, wherein: A sliding claw (2) is installed in the base (1), and the clamping end of the sliding claw (2) is located in the sliding groove and is slidably connected. A limiting claw (3) is installed on the base (1), and the position of the limiting claw (3) corresponds to the position of the clamping end of the sliding claw (2); The sliding claw (2) comprises a T-shaped claw (201), a guide rail (202), a telescopic oil cylinder (203), an articulated seat (204), a slider (205) and an oil cylinder hinge seat (206). The number of the guide rails (202) is two. The two guide rails (202) are both located in the base (1) and fixedly connected. The two guide rails (202) are respectively located on both sides of the sliding groove. A slider (205) is slidably connected between the two guide rails (202). The upper and lower sides of the slider (205) are respectively fixedly connected with the T-shaped claw (201) and the oil cylinder hinge seat (206). The T-shaped claw (201) is located in the sliding groove and slidably connected. The articulated seat (204) is located in the base (1) and fixedly connected. The telescopic oil cylinder (203) is hinged in the articulated seat (204). The telescopic end of the telescopic oil cylinder (203) is hinged to the oil cylinder hinge seat (206). The limiting claw (3) comprises a bottom plate (301), a flip claw (303), a fixing pin (304) and a positioning seat (305); the bottom plate (301) is located on the base (1) and connected via bolts; two positioning seats (305) are fixedly connected to the bottom plate (301), and the positioning seat (305) is connected to the flip claw (303) via a fixing pin (304).

2. The working device capable of realizing positive and negative clamping of a steel arch according to claim 1 is characterized in that: The upper surface of the base (1) is provided with two gaskets, and the two gaskets are respectively located on both sides of the sliding groove.

3. The working device capable of realizing positive and negative clamping of a steel arch according to claim 1 is characterized in that: Insertion grooves are respectively provided on the positioning seat (305) and the flip claw (303), and the insertion groove on the flip claw (303) corresponds to the insertion groove on the positioning seat (305). A positioning pin (302) is slidably connected in the insertion groove.

4. The working device capable of realizing positive and negative clamping of a steel arch according to claim 1 is characterized in that: The bottom plate (301) is also connected to the assembly claws (306) via bolts.

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