Anchor rod nut fastening device

Abstract

The utility model relates to an anchor rod nut fastening device which comprises a driving piece and a stirrer, an output shaft is arranged on the driving piece, a connecting hole is formed in one end of the stirrer, a fixing hole is formed in the other end of the stirrer, the output shaft is arranged in the connecting hole in a penetrating mode, and at least one pair of opposite planes is arranged between the output shaft and the connecting hole or a spline is arranged between the output shaft and the connecting hole. And a locking mechanism is arranged between the stirrer and the output shaft. The anchor rod nut fastening device has the advantages that the fixing hole is used for containing a nut on an anchor rod assembly; opposite planes are arranged between the output shaft and the connecting hole, the output shaft rotates, the plane on the output shaft can make contact with the plane on the connecting hole, then the stirrer is driven to rotate, and therefore the output shaft can drive the stirrer to rotate forwards or reversely, and the fastening function of left rotation or right rotation of different types of anchor rods is achieved. The locking mechanism is used for locking connection between the stirrer and the output shaft and preventing the output shaft from disengaging.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to an anchor nut fastening device. Background Art

[0002] In the process of tunneling construction in a mine, anchor rods are needed to support the tunnel. In the prior art, during the tunneling construction, the anchor rod nuts are tightened manually. The manual tightening of the nuts and the torque of the nuts are determined by the workers, which may result in insufficient torque and potential safety hazards. In addition, the workers have high labor intensity and low efficiency. Utility Model Content

[0003] An object of the present application is to provide an anchor nut fastening device that can reduce the labor intensity of workers.

[0004] The technical solution adopted in the present application is: an anchor nut fastening device, including a driving member and an agitator, the driving member is provided with an output shaft, one end of the agitator is provided with a connecting hole, and the other end is provided with a fixing hole, the output shaft is passed through the connecting hole, at least one pair of opposite planes are provided between the output shaft and the connecting hole or a spline is provided between the output shaft and the connecting hole, and a locking mechanism is provided between the agitator and the output shaft.

[0005] Compared with the prior art, the advantages of the present application are that the driving member is used to provide the rotational power of the agitator and the torque applied is large; the fixing hole is used to accommodate the nut on the anchor rod assembly, so that the rotation of the agitator drives the nut on the anchor rod assembly to rotate, thereby tightening the nut on the anchor rod assembly; a relative plane is provided between the output shaft and the connecting hole, so that when the output shaft rotates, the plane on the output shaft will contact the plane on the connecting hole, thereby driving the agitator to rotate, so the output shaft can drive the agitator to rotate forward or reverse, satisfying the tightening function of left-handed or right-handed anchors of different types, and similarly, the provision of a spline can also drive the agitator to rotate forward or reverse; the locking mechanism is used to lock the connection between the agitator and the output shaft to prevent the output shaft from falling out; mechanized operation has low labor intensity for workers.

[0006] In some embodiments of the present application, the locking mechanism includes a pin shaft and a cotter pin, a first locking hole is provided on the output shaft, a second locking hole is provided on the agitator, the first locking hole and the second locking hole cooperate with each other, the pin shaft is passed through the first locking hole and the second locking hole, one end of the pin shaft is opposite to the outer surface of the agitator, and the cotter pin is arranged at the other end of the pin shaft.

[0007] In some embodiments of the present application, the locking mechanism includes a bolt and a nut, a first locking hole is provided on the output shaft, a second locking hole is provided on the agitator, the first locking hole and the second locking hole cooperate with each other, the bolt is passed through the first locking hole and the second locking hole, the head of the bolt is opposite to the outer surface of the agitator, and the nut is connected to the tail of the bolt.

[0008] Furthermore, the agitator is provided with a locking plane, and the second locking hole is arranged on the locking plane.

[0009] In some embodiments of the present application, the output shaft is stepped; and the shoulder of the output shaft fits with the agitator.

[0010] In some embodiments of the present application, a back-off groove that is concave outward along the circumferential direction is provided at the bottom of the connecting hole.

[0011] In some embodiments of the present application, the fixing hole includes a nut installation section and an extension section from the outside to the inside, and the cross-sectional area of ​​the nut installation section is larger than the cross-sectional area of ​​the extension section.

[0012] Furthermore, a guide section is provided between the nut mounting section and the extension section, and the cross-sectional area of ​​the guide section gradually decreases along the direction from the nut mounting section to the extension section; the cross-sectional area on the guide section closest to the extension section coincides with the cross-sectional area on the extension section closest to the guide section.

[0013] Furthermore, the agitator is provided with a bell mouth, which is communicated with the nut mounting section. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0015] Figure 2 yes Figure 1 A magnified view of part A in FIG.

[0016] Figure 3 It is a schematic diagram of the working state of Example 1 of the utility model.

[0017] In the figure: 1. driving member; 2. agitator; 3. output shaft; 4. connecting hole; 5. fixing hole; 6. pin shaft; 7. cotter pin; 8. first locking hole; 9. second locking hole; 10. locking plane; 11. back-off groove; 12. nut mounting section; 13. extension section; 14. guide section; 15. bell mouth; 16. anchor nut; 17. anchor rod body; 18. anchor tray. DETAILED DESCRIPTION

[0018] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0019] Embodiment 1:

[0020] This embodiment provides an anchor nut fastening device, such as Figure 1 , Figure 2 , Figure 3As shown, it includes a driving member 1 and a stirrer 2, the driving member 1 is provided with an output shaft 3, one end of the stirrer 2 is provided with a connecting hole 4, and the other end is provided with a fixing hole 5, the output shaft 3 is inserted into the connecting hole 4, at least one pair of opposite planes are provided between the output shaft 3 and the connecting hole 4, or a spline is provided between the output shaft 3 and the connecting hole 4, and a locking mechanism is provided between the stirrer 2 and the output shaft 3. In this embodiment, the driving member 1 is a rock drill or a gyrator; the front end of the output shaft 3 is hexagonal, and the connecting hole 4 cooperates with the front end of the output shaft 3, so as to facilitate the disassembly and replacement of the stirrer 2.

[0021] The driving member 1 is used to provide rotational power for the agitator 2; the fixing hole 5 is used to accommodate the anchor nut 16, so that the rotation of the agitator 2 drives the anchor nut 16 to rotate, thereby tightening the anchor nut 16; a relative plane is provided between the output shaft 3 and the connecting hole 4, so that when the output shaft 3 rotates, the plane on the output shaft 3 will contact the plane on the connecting hole 4, thereby driving the agitator 2 to rotate, so the output shaft 3 can drive the agitator 2 to rotate forward or reverse, satisfying the tightening function of different types of anchor rods for left or right rotation. Similarly, the provision of a spline can also drive the agitator 2 to rotate forward or reverse; the locking mechanism is used to lock the connection between the agitator 2 and the output shaft 3 to prevent the output shaft 3 from falling out.

[0022] In order to ensure the reliability of the locking mechanism, the locking mechanism includes a pin 6 and a cotter pin 7, a first locking hole 8 is provided on the output shaft 3, a second locking hole 9 is provided on the agitator 2, the first locking hole 8 and the second locking hole 9 cooperate, the pin 6 is passed through the first locking hole 8 and the second locking hole 9, one end of the pin 6 is opposite to the outer surface of the agitator 2, and the cotter pin 7 is arranged at the other end of the pin 6. The pin 6 can prevent the agitator 2 from being separated from the output shaft 3, and the cotter pin 7 can prevent the pin 6 from being disengaged from the first locking hole 8 and the second locking hole 9, thereby ensuring the reliability of the locking.

[0023] In order to ensure reliable locking, a locking plane 10 is provided on the stirrer 2, and the second locking hole 9 is arranged on the locking plane 10. The design of the locking plane 10 makes the end of the pin 6 have a large contact area with the stirrer 2, and the pressure is dispersed, and at the same time, the cotter pin 7 has a large contact area with the stirrer 2, and the pressure is dispersed.

[0024] In order to prevent the pin 6 from being subjected to axial shear force, the output shaft 3 is stepped, and the shoulder of the output shaft 3 fits the agitator 2. During use, the downward pressure will be directly transmitted to the agitator 2 by the shoulder of the output shaft 3, preventing the pin 6 from being subjected to axial shear force.

[0025] In order to facilitate processing, a back-cut groove 11 which is concave outward along the circumferential direction is provided at the bottom of the connection hole 4. The design of the back-cut groove 11 makes the processing of the connection hole 4 quick and low in processing cost.

[0026] In order to ensure the reliability of the fixing hole 5, the fixing hole 5 includes a nut mounting section 12 and an extension section 13 from the outside to the inside, and the cross-sectional area of ​​the nut mounting section 12 is larger than the cross-sectional area of ​​the extension section 13. In this embodiment, the cross-sectional area of ​​the nut mounting section 12 is a polygon that matches the anchor nut 16. The nut mounting section 12 is used to match the anchor nut 16, so that the rotation of the agitator 2 can drive the anchor nut 16 to rotate synchronously, and the extension section 13 is used to accommodate the anchor rod body 17, so that the anchor nut 16 can be screwed in along the anchor rod body 17; the extension section 13 has a small cross-sectional area and can limit the anchor nut 16.

[0027] In order to ensure that the rod body enters the extension section 13 reliably, a guide section 14 is provided between the nut installation section 12 and the extension section 13, and the cross-sectional area of ​​the guide section 14 gradually decreases from the nut installation section 12 to the extension section 13; the cross-sectional area of ​​the guide section 14 closest to the extension section 13 coincides with the cross-sectional area of ​​the extension section 13 closest to the guide section 14; the surface of the guide section 14 is an arc surface. The design of the guide section 14 can guide the anchor rod body 17, making it easier for the anchor rod body 17 to enter the extension section 13; the connection between the guide section 14 and the extension section 13 coincides, and there is no step between the two, so that the anchor rod body 17 can smoothly enter the extension section 13 from the guide section 14, and prevent the top of the anchor rod body 17 from getting stuck.

[0028] In order to facilitate the installation of the anchor rod assembly, the agitator 2 is provided with a bell mouth 15, which is connected to the nut installation section 12; the bell mouth 15 cooperates with the anchor rod tray 18. The design of the bell mouth 15 can guide the anchor rod body 17 and the anchor rod nut 16 to smoothly enter the agitator 2 when the agitator 2 and the anchor rod body 17 are not concentric.

[0029] In order to reliably fix the anchor nut 16 , the length of the nut installation section 12 is greater than the thickness of the anchor nut 16 , and the nut installation section 12 can completely accommodate the anchor nut 16 to prevent the anchor nut 16 from falling out.

[0030] Embodiment 2:

[0031] This embodiment provides an anchor nut fastening device, the locking mechanism is different from that in embodiment 1, and the other features are the same as those in embodiment 1, the locking mechanism includes a bolt and a nut, a first locking hole 8 is provided on the output shaft 3, a second locking hole 9 is provided on the agitator 2, the first locking hole 8 and the second locking hole 9 cooperate, the bolt is passed through the first locking hole 8 and the second locking hole 9, the head of the bolt is opposite to the outer surface of the agitator 2, and the nut is connected to the tail of the bolt. The bolt can prevent the agitator 2 from detaching from the output shaft 3, and the nut can prevent the bolt from escaping from the first locking hole 8 and the second locking hole 9, thereby ensuring reliable locking.

[0032] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An anchor nut fastening device, characterized in that: The invention comprises a driving member (1) and a stirrer (2), wherein the driving member (1) is provided with an output shaft (3), one end of the stirrer (2) is provided with a connecting hole (4), and the other end is provided with a fixing hole (5), the output shaft (3) is inserted into the connecting hole (4), at least one pair of opposite planes are provided between the output shaft (3) and the connecting hole (4), or a spline is provided between the output shaft (3) and the connecting hole (4), and a locking mechanism is provided between the stirrer (2) and the output shaft (3).

2. The anchor nut fastening device according to claim 1, characterized in that: The locking mechanism comprises a pin shaft (6) and a split pin (7); a first locking hole (8) is provided on the output shaft (3); a second locking hole (9) is provided on the agitator (2); the first locking hole (8) and the second locking hole (9) cooperate with each other; the pin shaft (6) passes through the first locking hole (8) and the second locking hole (9); one end of the pin shaft (6) is opposite to the outer surface of the agitator (2); and the split pin (7) is arranged at the other end of the pin shaft (6).

3. The anchor nut fastening device according to claim 1, characterized in that: The locking mechanism comprises a bolt and a nut, a first locking hole (8) is provided on the output shaft (3), a second locking hole (9) is provided on the agitator (2), the first locking hole (8) and the second locking hole (9) cooperate with each other, the bolt is passed through the first locking hole (8) and the second locking hole (9), the head of the bolt is opposite to the outer surface of the agitator (2), and the nut is connected to the tail of the bolt.

4. An anchor nut fastening device according to claim 2 or 3, characterized in that: The stirrer (2) is provided with a locking plane (10), and the second locking hole (9) is arranged on the locking plane (10).

5. The anchor nut fastening device according to claim 1, characterized in that: The output shaft (3) is in a stepped shape; the shaft shoulder of the output shaft (3) is in contact with the stirrer (2).

6. The anchor nut fastening device according to claim 1, characterized in that: The bottom of the connecting hole (4) is provided with a tool retreat groove (11) which is recessed outwards along the circumferential direction.

7. The anchor nut fastening device according to claim 1, characterized in that: The fixing hole (5) comprises, from the outside to the inside, a nut mounting section (12) and an extension section (13), and the cross-sectional area of ​​the nut mounting section (12) is greater than the cross-sectional area of ​​the extension section (13).

8. The anchor nut fastening device according to claim 7, characterized in that: A guide section (14) is provided between the nut mounting section (12) and the extension section (13); the cross-sectional area of ​​the guide section (14) gradually decreases along the direction from the nut mounting section (12) to the extension section (13); and the cross-sectional area of ​​the guide section (14) closest to the extension section (13) coincides with the cross-sectional area of ​​the extension section (13) closest to the guide section (14).

9. The anchor nut fastening device according to claim 7, characterized in that: The stirrer (2) is provided with a bell mouth (15), and the bell mouth (15) is communicated with the nut mounting section (12).

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