Fixing device for driving circular roadway anchor rod stay wire

Abstract

The utility model relates to the field of coal mine safety production, in particular to a fixing device for driving a round roadway anchor rod stay wire, which comprises a device base, a transmission seat arranged in the center of the top end of the device base, a connecting sleeve arranged in the center of the top end of the transmission seat, and a knob arranged on one side of the connecting sleeve and positioned at the top end of the transmission seat. The bottom end of the knob extends to the inner side of the transmission seat, and the bottom end of the displacement seat is provided with a displacement groove on the top surface of the transmission seat; the connecting sleeve is installed on the anchor rod cap, the rotary knob rotates, the first transmission disc drives the four second transmission gears to rotate, the second transmission gears are meshed with the racks at the bottom end of the displacement base, and therefore the second transmission gears can conveniently drive the displacement base to clamp and fix anchor rods of different sizes, installation and fixing are convenient, and the anchor rod fixing device is simple in structure and convenient to use. And the anchor rod stay wires are arranged in the tunneling subarea support roadway, so that the subarea support straightness is ensured, and the field permanent support quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine production safety, in particular to a fixing device for driving anchor rods in circular tunnels. Background Art

[0002] The cross-section of the TBM excavation tunnel is circular, and the anchor bolts and cables are constructed using zoned hydraulic drilling rigs. Taking the belt tunnel in the western area as an example, it is divided into three support areas: L1, L2, and L4. There are a total of 7 hydraulic drilling rigs. The support tasks are divided as follows: 3 hydraulic drilling rigs are deployed in the L1 area to construct 5 arch support anchor bolts, 2 monorail hanging beam anchor bolts, and 6 anchor cables; 2 hydraulic drilling rigs are deployed in the L2 area to construct 4 anchor bolts and 2 anchor cables; 2 hydraulic drilling rigs are deployed in the L4 area to construct 2 anchor bolts;

[0003] During TBM excavation, the three support areas are divided into zones for support. The upper, middle and lower anchor supports are separated by a large distance. The spacing between the anchors constructed between the zones cannot be controlled by pulling wires, resulting in uneven anchor installation and affecting the quality of permanent support on site.

[0004] Therefore, in order to solve the problem that the anchor rods are not straight and affect the quality of permanent support on site, a fixing device for the anchor rod wire driving in circular tunnels can be designed, which aims to ensure the straightness of the partition support when the anchor rod wire is driven in the TBM excavation partition support tunnel, and improve the quality of permanent support on site. Utility Model Content

[0005] In order to overcome the problem of uneven anchor driving, which affects the quality of permanent support on site.

[0006] The technical solution of the utility model is as follows: a fixing device for installing a circular tunnel anchor rod pull line, comprising a device base, a transmission seat is provided at the center position of the top of the device base, a connecting sleeve is provided at the center position of the top of the transmission seat, a knob is provided on one side of the connecting sleeve and located at the top of the transmission seat, the bottom end of the knob extends to the inner side of the transmission seat, displacement seats are provided at the four ends below the inner side of the connecting sleeve and located at the top of the transmission seat, a fixing block is provided at the front end of the displacement seat, a displacement groove is provided at the bottom end of the displacement seat and located at the top surface of the transmission seat, and the bottom end of the displacement seat passes through the displacement groove and extends to the inner side of the transmission seat;

[0007] When the knob is rotating, the knob drives the four second transmission gears to rotate through the first transmission disc, and the second transmission gears engage with the rack at the bottom end of the displacement seat, so that the second transmission gears drive the displacement seat to clamp and fix anchor rods of different sizes, effectively preventing the anchor rods from shaking, skewing or offsetting after grouting.

[0008] Preferably, a first transmission disc is provided at the bottom end of the inner wall of the transmission seat below the displacement seat, and a second transmission disc is provided at the center position of the top of the first transmission disc. The first transmission disc and the second transmission disc are an integrated structure.

[0009] Preferably, a second transmission gear is provided on the outer end surface of the second transmission disc on one side of the displacement seat, and the top end of the second transmission gear extends to the top end of the inner wall of the transmission seat.

[0010] Preferably, gears are provided at both ends of the second transmission gear, and a rack is provided on one side of the displacement groove at the bottom end of the displacement seat. The displacement groove is engaged with the rack and the second transmission disc through the gears, which facilitates transmission, so that the rack and gear are transmitted.

[0011] Preferably, the bottom end of the knob is located on the inner side of the transmission seat and a first transmission gear is provided. The bottom end of the first transmission gear extends to the outer side of the first transmission disc. The knob is engaged with the first transmission disc through the first transmission gear to achieve synchronous transmission.

[0012] Preferably, a positioning groove is provided at the center of the connecting sleeve, and the positioning groove is a circular groove for easy positioning.

[0013] Preferably, the device base and the transmission base are an integrated structure, and the device base and the transmission base are connected by welding to increase structural strength.

[0014] Beneficial effects of the utility model:

[0015] Install the connecting sleeve on the anchor cap, and by turning the knob, the first transmission disc drives the four second transmission gears to rotate, and the second transmission gears engage with the rack at the bottom end of the displacement seat, so that the second transmission gear drives the displacement seat to clamp and fix anchors of different sizes, which is convenient for installation and fixation, and convenient for pulling wires to confirm the straightness between multiple anchors. The anchor wire is set in the excavation zone support tunnel to ensure the straightness of the zone support, thereby improving the quality of permanent support on site. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 What is shown is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 Shown is a schematic diagram of the structure of the base of the device of the utility model;

[0018] Figure 3 Shown is a schematic diagram of the structure of the transmission seat of the utility model;

[0019] Figure 4 What is shown is a schematic diagram of the structure of the second transmission gear of the present invention.

[0020] Explanation of the accompanying drawings: 1. Device base; 2. Connecting sleeve; 3. Knob; 4. Fixed block; 5. Displacement slot; 6. Rack; 7. Displacement seat; 8. First transmission gear; 9. First transmission disc; 10. Transmission seat; 11. Second transmission disc; 12. Second transmission gear. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] See also Figure 1-Figure 4 The utility model provides a technical solution: a fixing device for installing a circular tunnel anchor rod, comprising a device base 1, a transmission seat 10 is provided at the center position of the top of the device base 1, a connecting sleeve 2 is provided at the center position of the top of the transmission seat 10, a positioning groove is provided at the center position of the connecting sleeve 2, and the positioning groove is a circular groove. The device base 1 and the transmission seat 10 are an integrated structure, the device base 1 and the transmission seat 10 are connected by welding, and then the anchor rod is inserted into the inner side of the connecting sleeve 2;

[0023] See also Figure 2-Figure 3 In this embodiment, a knob 3 is provided on one side of the connecting sleeve 2 at the top of the transmission seat 10, and the bottom end of the knob 3 extends to the inner side of the transmission seat 10. Displacement seats 7 are provided at the four ends of the lower inner side of the connecting sleeve 2 at the top of the transmission seat 10. The bottom end of the knob 3 is located on the inner side of the transmission seat 10 and is provided with a first transmission gear 8. The bottom end of the first transmission gear 8 extends to the outer side of the first transmission disc 9. The knob 3 is meshed with the first transmission disc 9 through the first transmission gear 8, and then by rotating the knob 3, the knob 3 drives the first transmission disc 9 to rotate through the first transmission gear 8.

[0024] See also Figure 3-Figure 4In this embodiment, a fixing block 4 is provided at the front end of the displacement seat 7, a displacement groove 5 is provided on the top surface of the transmission seat 10 at the bottom end of the displacement seat 7, and the bottom end of the displacement seat 7 passes through the displacement groove 5 and extends to the inner side of the transmission seat 10. A first transmission disc 9 is provided at the bottom end of the inner wall of the transmission seat 10 below the displacement seat 7, and a second transmission disc 11 is provided at the center position of the top end of the first transmission disc 9. The first transmission disc 9 and the second transmission disc 11 are an integrated structure. The outer end surface of the second transmission disc 11 is located on one side of the displacement seat 7 and is provided with a second transmission gear 12. The top end of the second transmission gear 12 extends to the top end of the inner wall of the transmission seat 10, and the upper end of the second transmission gear 12 Gears are provided at both ends of the lower part. A rack 6 is provided on one side of the displacement groove 5 at the bottom end of the displacement seat 7. The displacement groove 5 is meshed with the rack 6 and the second transmission disc 11 through gears. Since the first transmission disc 9 and the second transmission disc 11 are an integrated structure, when the first transmission disc 9 rotates, the second transmission disc 11 drives the four second transmission gears 12 to rotate, and the second transmission gears 12 are meshed with the rack 6 at the bottom end of the displacement seat 7, so that the second transmission gear 12 drives the displacement seat 7 to clamp and fix anchor rods of different sizes, which facilitates the installation and fixation of the fixing device, so as to pull the wire between multiple anchor rods to make them straight.

[0025] When working, it will be installed on the outside of the fixed anchor rod, and the device base 1 will fit against the wall. Then, by turning the knob 3, the knob 3 will drive the first transmission disc 9 to rotate through the first transmission gear 8. Since the first transmission disc 9 and the second transmission disc 11 are an integrated structure, when the first transmission disc 9 rotates, the second transmission disc 11 drives the four second transmission gears 12 to rotate, and the second transmission gear 12 is engaged with the rack 6 at the bottom end of the displacement seat 7, so that the second transmission gear 12 drives the displacement seat 7 to clamp and fix anchor rods of different sizes. After the fixation is completed, it is convenient to pull the wire to confirm the straightness between multiple anchor rods. The anchor wire pulling in the excavation zone support tunnel ensures the straightness of the zone support and improves the quality of permanent support on site.

[0026] Through the above steps, the problem of uneven anchor driving, which affects the quality of permanent support on site, is solved.

Claims

1. A fixing device for installing a circular roadway anchor rod, comprising a device base (1); characterized in that: A transmission seat (10) is provided at the center of the top of the device base (1), a connecting sleeve (2) is provided at the center of the top of the transmission seat (10), a knob (3) is provided on one side of the connecting sleeve (2) located at the top of the transmission seat (10), the bottom end of the knob (3) extends to the inner side of the transmission seat (10), and displacement seats (7) are provided at the four ends below the inner side of the connecting sleeve (2) located at the top of the transmission seat (10), a fixing block (4) is provided at the front end of the displacement seat (7), a displacement groove (5) is provided at the bottom end of the displacement seat (7) located on the top surface of the transmission seat (10), and the bottom end of the displacement seat (7) passes through the displacement groove (5) and extends to the inner side of the transmission seat (10).

2. A fixing device for installing a circular roadway anchor rod according to claim 1, characterized in that: A first transmission disc (9) is provided at the bottom end of the inner wall of the transmission seat (10) below the displacement seat (7), and a second transmission disc (11) is provided at the center position of the top end of the first transmission disc (9). The first transmission disc (9) and the second transmission disc (11) are an integrated structure.

3. A fixing device for installing a circular roadway anchor rod according to claim 2, characterized in that: The outer end surface of the second transmission disc (11) is located on one side of the displacement seat (7) and is provided with a second transmission gear (12), and the top end of the second transmission gear (12) extends to the top end of the inner wall of the transmission seat (10).

4. A fixing device for installing a circular roadway anchor rod according to claim 3, characterized in that: Gears are provided at both the upper and lower ends of the second transmission gear (12); a rack (6) is provided at the bottom end of the displacement seat (7) on one side of the displacement slot (5); and the displacement slot (5) is meshed with the rack (6) and the second transmission disc (11) through the gears.

5. The fixing device for installing anchor wire in a circular tunnel according to claim 2, characterized in that: The bottom end of the knob (3) is located inside the transmission seat (10), and a first transmission gear (8) is provided. The bottom end of the first transmission gear (8) extends to the outside of the first transmission disc (9), and the knob (3) is meshed with the first transmission disc (9) through the first transmission gear (8).

6. A fixing device for installing anchor wires in circular tunnels according to claim 1, characterized in that: A positioning groove is provided at the center of the connecting sleeve (2), and the positioning groove is a circular groove.

7. A fixing device for installing anchor wires in circular tunnels according to claim 1, characterized in that: The device base (1) and the transmission base (10) are an integrated structure, and the device base (1) and the transmission base (10) are connected by welding.

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