Pre-tightening force wrench for anchor rod of driving working face

Abstract

The utility model relates to the technical field of wrenches, and provides a driving face anchor rod pre-tightening force wrench which comprises a mounting frame and a rotating rod, the rotating rod is arranged on the mounting frame, the upper end of the rotating rod is provided with a first clamping part, and the lower end of the rotating rod is provided with a second clamping part. The device has the advantages of being simple in structure, easy to manufacture, convenient to use and the like, when torque needs to be applied to the anchor rod, the first clamping part is used for clamping the anchor rod nut, the second clamping part is connected with power equipment, the power equipment works to drive the rotating rod to rotate, and the rotating rod drives the anchor rod nut to rotate, so that pre-tightening force of the anchor rod can be fastened without climbing operation; the working efficiency is improved, and the potential safety hazard is reduced.

Description

Technical Field

[0001] This application relates to the field of wrench technology, and more specifically, to a pre-tightening wrench for anchor bolts in tunneling faces. Background Technology

[0002] Anchor bolt preload is an important parameter in anchor bolt support. It refers to the torque applied to the anchor bolt by the nut after construction and installation to achieve the design requirements, thereby realizing true active support.

[0003] During tunnel excavation, anchor bolts are driven into the roof and both sides to reinforce the rock strata and prevent side collapses and roof falls. Currently, after the anchor bolts are installed at the working face, workers usually use pneumatic wrenches or torque wrenches to turn the anchor bolt nuts to tighten the anchor bolt preload. However, for top anchor bolts, it is necessary to work at height, which increases the labor intensity of the workers, reduces work efficiency, and poses safety hazards. Utility Model Content

[0004] The purpose of this application is to provide a pre-tightening wrench for anchor bolts in tunneling faces, thereby improving work efficiency and reducing safety hazards.

[0005] This application provides a pre-tightening wrench for anchor bolts in a tunneling face, employing the following technical solution:

[0006] A pre-tightening wrench for anchor bolts in a tunneling face includes a mounting frame and a rotating rod. The rotating rod is mounted on the mounting frame, with a first locking portion at the upper end and a second locking portion at the lower end.

[0007] Preferably, the first snap-fit ​​part has a hollow structure, and the top of the rotating rod is recessed inward to form an arc-shaped structure.

[0008] Preferably, the first snap-fit ​​portion has a hexagonal structure.

[0009] Preferably, the mounting bracket includes a bearing housing and a plurality of support rods. The bearing housing contains a bearing, which is mounted on the rotating rod. The upper and lower ends of the rotating rod both extend out of the bearing housing, and the support rods are mounted on the bearing housing.

[0010] Preferably, the mounting bracket further includes a plurality of connectors, the number of which is the same as the number of the support rods and they correspond one-to-one, and the connectors are located at the end of the support rod away from the bearing housing.

[0011] Preferably, the connector has a U-shaped structure and a through hole.

[0012] Preferably, a reinforcing plate is provided between two adjacent support rods.

[0013] Preferably, the support rod is welded and fixed to the bearing housing, the support rod to the connector, and the support rod to the reinforcing plate.

[0014] Compared with the prior art, the beneficial effects of this application are as follows:

[0015] This application has the advantages of simple structure, easy manufacturing and convenient use. When torque needs to be applied to the anchor rod, the first locking part locks the anchor rod nut, and the second locking part connects to the power equipment. The power equipment drives the rotating rod to rotate, and the rotating rod drives the anchor rod nut to rotate. Thus, the anchor rod preload can be tightened without climbing to a height, which improves work efficiency and reduces safety hazards. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 for Figure 1 A structural diagram from another perspective;

[0019] Figure 3 This is a schematic diagram of the connection structure between the rotating rod and the bearing box in this utility model;

[0020] Figure 4 for Figure 3 Enlarged view of the structure at point A in the middle.

[0021] The reference numerals in the attached figures are as follows:

[0022] 1. Mounting bracket; 2. Rotating rod; 3. First snap-fit ​​part; 4. Second snap-fit ​​part; 5. Bearing housing; 6. Support rod; 7. Connecting piece; 8. Through hole; 9. Reinforcing plate. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application 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 this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] Example

[0030] like Figure 1-4 As shown in the embodiment of this application, the pre-tightening wrench for the anchor bolt in the tunneling face includes a mounting frame 1 and a rotating rod 2. The rotating rod 2 is mounted on the mounting frame 1, and the upper end of the rotating rod 2 has a first locking part 3, and the lower end of the rotating rod 2 has a second locking part 4.

[0031] When torque needs to be applied to the anchor bolt, the first locking part 3 locks the anchor bolt nut, and the second locking part 4 connects to the power equipment. The power equipment drives the rotating rod 2 to rotate, and the rotating rod 2 drives the anchor bolt nut to rotate. Thus, the anchor bolt preload can be tightened without climbing to a height, which improves work efficiency and reduces safety hazards.

[0032] In this embodiment, the first snap-fit ​​part 3 is a hollow structure, and the top of the rotating rod 2 is recessed inward to form an arc surface structure. Due to the above structure, the anchor nut and the first snap-fit ​​part 3 can be quickly aligned, improving work efficiency.

[0033] In this embodiment, the first snap-fit ​​part 3 is adapted to the anchor nut. In specific implementation, the first snap-fit ​​part 3 has a hexagonal structure.

[0034] In this embodiment, the mounting frame 1 includes a bearing housing 5 and multiple support rods 6. The bearing housing 5 is equipped with a bearing, which is mounted on the rotating rod 2. The upper and lower ends of the rotating rod 2 both extend out of the bearing housing 5 to improve the performance of the rotating rod 2. The support rods 6 are mounted on the bearing housing 5 and are used to support the bearing housing 5.

[0035] In this embodiment, the mounting frame 1 also includes a plurality of connectors 7. The number of connectors 7 is the same as that of the support rods 6 and they correspond one-to-one. The connectors 7 are located at the end of the support rods 6 away from the bearing housing 5. The connection of the connectors 7 makes it easy to fix the mounting frame 1 to the bracket of the power equipment by means of bolt and nut assembly.

[0036] In this embodiment, in order to improve the stability of the connector 7 on the power equipment, the connector 7 has a U-shaped structure and a through hole 8 is provided on the connector 7, through hole 8 for the shank of the bolt to pass through.

[0037] In this embodiment, a reinforcing plate 9 is provided between two adjacent support rods 6. The reinforcing plate 9 is used to improve the stability between two adjacent support rods 6, thereby improving the overall stability of the mounting frame 1 and ensuring the performance.

[0038] In this embodiment, the support rod 6 is welded and fixed to the bearing housing 5, the support rod 6 is fixed to the connector 7, and the support rod 6 is fixed to the reinforcing plate 9.

[0039] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A pre-tensioning wrench for a rock bolt in a tunneling face, characterized in that: The mounting frame and the rotating rod, the upper end of the rotating rod has a first clamping part, and the lower end of the rotating rod has a second clamping part; The first clamping part is a hollow structure, and the top of the rotating rod is inwardly recessed to form an arc surface structure; The first clamping part is a hexagonal structure; The mounting frame comprises a bearing box and a plurality of support rods, the inside of the bearing box is provided with a bearing, the bearing is arranged on the rotating rod, the upper end of the rotating rod and the lower end of the rotating rod both pass out of the bearing box, and the support rods are arranged on the bearing box.

2. A jumb Martin anchor rod pretensioning wrench according to claim 1, characterized in that: The mounting frame further comprises a plurality of connecting pieces, the number of the connecting pieces is the same as that of the support rods and corresponds to the support rods one by one, and the connecting pieces are arranged at the ends of the support rods away from the bearing box.

3. A pre-tensioning wrench for rock bolts in a tunneling face according to claim 2, characterized in that: The connecting pieces are U-shaped structures, and the connecting pieces are provided with through holes.

4. A pre-tensioning wrench for rock bolts in a tunneling face according to claim 2, characterized in that: A reinforcing plate is arranged between two adjacent support rods.

5. A pre-tensioning wrench for rock bolts in a tunneling face according to claim 4, characterized in that: The support rods and the bearing box, the support rods and the connecting pieces, and the support rods and the reinforcing plate are all welded and fixed.

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