Mining hand-held nut installer
Patent Information
- Application Number
- CN202521876152.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-02
- Publication Date
- 2026-08-18
- Estimated Expiration
- 2035-09-02
AI Technical Summary
然而，目前的螺母安装器操作不便，巷道顶板锚杆处的螺母安装、拆卸，需要作业人员爬高爬低，费时费力，工作效率低，具有登高作业的安全隐患
与现有技术相比，本实用新型的优点在于：一种矿用手持式螺母安装器，以矿下压缩空气为工作介质（0.4~0.63MPa）驱动气动马达，扳手控制气动马达的转速和气动马达的正/反转，实现锚杆螺母的安装与拆卸。转座体、玻璃钢支腿的设置，可轻松的针对顶帮部在额定高度内，任意高度的螺母的安装与拆卸，提高了工作效率。由于该设备在工作过程中玻璃钢支腿推力和推进速度任意可调，因而适应范围广范，可在1.8m≤H≤4.5m 的各种高度巷道实现高速度高质量的安装、装卸锚杆螺母的工作。在综掘巷道内不受环境影响，在很小的范围内都能工作。本申请操作方便，体积小、工作效率高，适应于不同高度巷道安装、拆卸锚杆螺母的工作。
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Figure CN224643526U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a handheld nut installer for mining, belonging to the field of nut installation technology. Background Technology
[0002] Rock bolts are a fundamental component of roadway support in modern coal mines, reinforcing the surrounding rock and allowing it to support itself. Rock bolts typically have a long threaded section at one end, into which a nut is screwed to adjust the preload. After roadway excavation and the installation of rock bolts or anchor mesh, changes in ground pressure or surrounding rock may cause insufficient anchoring strength, requiring further tightening of the anchor nuts. As the coal face advances, the rock bolts or anchor mesh support in the roadway are dismantled, necessitating the removal of the anchor nuts. However, current nut installers are inconvenient to operate. Installing and removing nuts at the roadway roof rock bolts requires workers to climb high and low, which is time-consuming, labor-intensive, inefficient, and poses safety hazards due to working at heights. Summary of the Invention
[0003] The technical problem to be solved by this utility model is to provide a handheld nut installer for mining, which is easy to operate, improves work efficiency, and is suitable for installing and removing anchor nuts in roadways of different heights.
[0004] The technical solution adopted by this utility model to solve the above problems is as follows: a mining outrigger-type nut installer, including a body, a rotating base hinged to the top of the body, a pneumatic drive device provided on the rotating base, and a nut installation head fixed to the output end of the pneumatic drive device; an operating arm is provided on the side of the rotating base, and by moving the operating arm, the rotating base can rotate around the body; a vertically arranged telescopic outrigger is provided at the bottom of the body, and a body valve block is provided at the end of the operating arm near the pneumatic motor, and an air source is connected to the two working air ports of the pneumatic drive device and the two working air ports of the telescopic outrigger through the body valve block; a handle is symmetrically provided at the other end of the operating arm, and a trigger is provided on the side of one of the handles, the trigger controls the opening and closing of the body valve block, thereby controlling the operation of the pneumatic motor and the telescopic outrigger; a reversing switch is provided on the body valve block, the reversing switch controls the reversing of the valve core inside the body valve block, thereby controlling the forward and reverse rotation of the pneumatic motor and the raising and lowering of the telescopic outrigger, so as to realize the installation or removal of the nut by the nut installation head.
[0005] The telescopic outriggers are made of fiberglass.
[0006] The control arm is equipped with a control switch assembly, which has a switch knob. Rotating the switch knob adjusts the thrust and lifting speed of the telescopic outriggers.
[0007] The pneumatic drive device is a pneumatic motor. Compared with existing technologies, the advantages of this utility model are as follows: A handheld nut installer for mining uses compressed air (0.4~0.63MPa) as the working medium to drive a pneumatic motor. A wrench controls the speed and forward / reverse rotation of the pneumatic motor, enabling the installation and removal of anchor nuts. The rotating body and fiberglass legs allow for easy installation and removal of nuts at any height within the rated height range on the roof and walls, improving work efficiency. Because the thrust and speed of the fiberglass legs are adjustable during operation, the device has a wide range of applications, enabling high-speed and high-quality installation and removal of anchor nuts in roadways of various heights (1.8m≤H≤4.5m). It is unaffected by environmental conditions in fully mechanized tunnels and can operate within a small area. This application is easy to operate, small in size, and highly efficient, suitable for installing and removing anchor nuts in roadways of different heights. Attached Figure Description
[0008] Figure 1 This is a schematic diagram of a handheld nut installer for mining, according to an embodiment of the present invention. Figure 2 for Figure 1 Side view In the diagram: 1. Fiberglass support leg; 2. Body; 3. Rotary shaft; 4. Rotary base; 5. Handle; 6. Trigger; 7. Switch knob; 8. Reversing switch; 9. Pneumatic motor; 10. Body valve block; 11. Control arm; 12. Control switch assembly. Detailed Implementation
[0009] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
[0010] like Figure 1 , 2As shown in this embodiment, a handheld nut installer for mining includes a body 2. The top of the body 2 is hinged to a rotating base 4 via a pivot 3. A pneumatic motor 9 is mounted on the rotating base 4, and the nut installation head is fixed to the output end of the pneumatic motor 9. An operating arm 11 is provided on the side of the rotating base 4. Moving the operating arm 11 allows the rotating base 2 to rotate around the body 4 by 120°, thereby driving the pneumatic motor 9 and the nut installation head to rotate synchronously, facilitating the installation and removal of anchor bolt nuts. Vertically arranged fiberglass legs 1 are provided at the bottom of the body 2, serving as supporting components. A valve block 10 is located at the end of the operating arm 11 near the pneumatic motor 9. Compressed air is connected to the valve block 10 through an outlet pipe, and the valve block 10 is connected to the two working air ports of the pneumatic motor 9 and the two working air ports of the fiberglass legs 1 through an inlet pipe. The other end of the control arm 11 is symmetrically equipped with handles 5, and a trigger 6 is provided on the side of one handle 5. The trigger 6 is connected to the valve core of the valve block 10 of the machine body. Pushing the trigger 6 controls the opening and closing of the internal air passage of the valve block 10 of the machine body, thereby controlling the operation of the pneumatic motor and the telescopic outrigger. The valve block 10 of the machine body is equipped with a reversing switch 8. When the reversing switch 8 is toggled, the valve core of the valve block of the machine body reverses, so that compressed air flows to the working air port of the pneumatic motor and the fiberglass outrigger or to the working air port of the pneumatic motor and the fiberglass outrigger, thereby controlling the forward and reverse rotation of the pneumatic motor 9, driving the nut installation head to install or remove the nut; it also controls the raising and lowering of the fiberglass outrigger, driving the machine body to rise and fall synchronously, so that the pneumatic motor and the nut installation head are closer to or further away from the roadway roof anchor bolt, which not only reduces the size of the equipment, but is also suitable for roadways of various heights. The control arm 11 is also equipped with a control switch assembly 12, which has a switch knob 7. Rotating the switch knob adjusts the thrust and lifting speed of the fiberglass outrigger.
[0011] The size of the opening of trigger 6 adjusts the size of the air passage inside valve block 10 of the machine body, thereby adjusting the speed of the pneumatic motor.
[0012] When used in well-drilling operations, this device reinforces the warning force of the anchor bolt nut; when used in fully mechanized mining faces for unloading and removing the anchor bolt nut, it helps to disassemble the anchor bolt nut.
[0013] This device uses compressed air (0.4~0.63MPa) from underground mines as the working medium to drive a pneumatic motor. A trigger controls the motor's speed, forward / reverse rotation, and the raising and lowering of the fiberglass outriggers, enabling the installation and removal of anchor bolt nuts. The inclusion of a rotating base and fiberglass outriggers facilitates easy installation and removal of nuts on the roof and walls, improving work efficiency. Because the thrust and speed of the fiberglass outriggers are adjustable during operation, the device has a wide range of applications, enabling high-speed and high-quality installation and removal of anchor bolt nuts in roadways of various heights (1.8m≤H≤4.5m). It is unaffected by environmental conditions within fully mechanized tunnels and can operate within a small area. This device is easy to operate, compact, and highly efficient, suitable for installing and removing anchor bolt nuts in roadways of different heights.
[0014] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.
Claims
1. A handheld nut installer for mining, characterized in that: The device includes a body with a hinged rotating base at the top. A pneumatic drive device is mounted on the rotating base, and a nut mounting head is fixed to the output end of the pneumatic drive device. A control arm is located on the side of the rotating base; moving the control arm allows the rotating base to rotate around the body. Vertically arranged telescopic legs are located at the bottom of the body. A valve block is located near the end of the control arm of the pneumatic drive device. An air source is connected to two working air ports of the pneumatic drive device and two working air ports of the telescopic legs through the valve block. A handle is symmetrically located at the other end of the control arm, and a trigger is located on the side of one of the handles. The trigger controls the opening and closing of the valve block, thereby controlling the operation of the pneumatic drive device and the telescopic legs. A reversing switch is located on the valve block; the reversing switch controls the valve core within the valve block to change direction, thereby controlling the forward and reverse rotation of the pneumatic drive device and the raising and lowering of the telescopic legs, enabling the nut mounting head to install or remove the nut.
2. The handheld nut installer for mining according to claim 1, characterized in that: The telescopic outriggers are made of fiberglass.
3. The handheld nut installer for mining according to claim 1, characterized in that: The control arm is equipped with a control switch assembly, which has a switch knob. Rotating the switch knob adjusts the thrust and lifting speed of the telescopic outriggers.
4. The handheld nut installer for mining according to claim 1, characterized in that: The pneumatic drive device is a pneumatic motor.