Adjustable punching device for mining with clamping limiting function

Abstract

The utility model relates to mining equipment technical field, concretely discloses a kind of adjustable mining punch device of clamping limit, comprising: lift frame, it is two-section type sleeve pole cooperation sliding connection lifting support, the lift frame bottom end is connected with positioning support, and positioning support and 2 lift frame constitute the main support of supporting punch equipment.This adjustable mining punch device of clamping limit, through the collaborative structure of positioning buckle, punch connecting portion and positioning support, effectively avoid the connection failure caused by high-frequency vibration, positioning buckle top end is engaged in positioning support bottom end face pre-set recess, while accurately limit the radial displacement of punch driving shaft, prevent its deviation when rotating or bearing punch reaction force, punch driving shaft and punch connecting portion are connected using thread, punch connecting portion and punch body are engaged using convex-concave cooperation, double connection structure enhances the reliability of power transmission, further reduces the risk of connection loosening.

Description

Technical Field

[0001] This utility model relates to the field of mining equipment technology, specifically to an adjustable punching device for mining with locking and limiting. Background Technology

[0002] In mining operations, punching devices are core equipment for key processes such as ore mining and tunnel support hole construction. Their main function is to drive the punch through a power mechanism to impact and drill holes in the rock or ore, laying the foundation for subsequent blasting, support and other operations. Depending on the mining scenario, the equipment can be divided into handheld, tabletop and large mobile types. Among them, mobile punching devices are widely used in medium and large working faces of open-pit and underground mines because they are adaptable to complex mining environments and cover a wide range of operations.

[0003] The connection between the punch and the power output shaft of existing equipment mostly relies on bolt fastening or simple pin clamping. Under high-frequency impact operation conditions, bolts are prone to loosening due to vibration, and pins may wear and deform, resulting in relative displacement between the punch and the output shaft. In addition, the feed rate adjustment and punch angle adjustment of existing punching devices are mostly done manually and mechanically. The adjustment process is cumbersome, and the adjustment accuracy is difficult to control, making it impossible to quickly adapt to the construction requirements of different mining faces. Utility Model Content

[0004] The purpose of this utility model is to provide an adjustable punching device for mining with a snap-fit ​​limit, in order to solve the problems mentioned in the background art, where the connection between the punch and the power output shaft of the existing equipment mostly relies on bolt fastening or simple pin snap-fit, which is prone to loosening due to vibration, and the feed adjustment and punch angle adjustment of the existing punching device mostly adopt manual mechanical adjustment, which is cumbersome and difficult to control the adjustment accuracy.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable mining punching device with snap-fit ​​limiting, including a lifting frame, which is a lifting support with two-section sleeve rods that are slidably connected. The bottom end of the lifting frame is connected to a positioning bracket, and the positioning bracket and the two lifting frames form the main support for the punching equipment.

[0006] The positioning bracket has a hole, and the output end of the hydraulic motor passes through the hole. The output end of the hydraulic motor is connected to the punch drive shaft, and the punch drive shaft passes through the positioning buckle. The top of the positioning buckle is engaged with the bottom end of the positioning bracket. The bottom end of the punch drive shaft is threaded to the punch connecting part, and the punch connecting part is engaged with the punch body in a convex-concave fit.

[0007] The upper end face of the punch body is connected to the bottom end of the buffer spring, and the buffer spring is wrapped around the outside of the punch connection part. The top end of the buffer spring is fixed to the bottom end of the guide ring by bolts, and the guide ring is inserted into the preset hole of the movable support plate. There is an auxiliary positioning plate below the movable support plate, and both the movable support plate and the auxiliary positioning plate are penetrated by positioning pins. The side wall of the movable support plate is connected to the slide of the lifting guide rail, and the lifting guide rail is vertically installed on the surface of the upper sleeve rod of the lifting frame.

[0008] Using the above technical solution, the two-section telescopic lifting frame is adaptable to different working spaces, the movable load-bearing plate and the lifting guide rail work together to achieve precise feed adjustment, and the auxiliary positioning plate and positioning pin improve the operational stability of the lifting device.

[0009] Preferably, the inner wall of the lifting frame is provided with a protruding plate, and the plate of the lifting frame is penetrated by positioning nails.

[0010] By adopting the above technical solution, the protruding plate on the inner wall of the lifting frame is penetrated by positioning nails, which can enhance the fixing effect of the positioning nails on the lifting frame, prevent the frame from shaking during operation, and improve the overall support stability.

[0011] Preferably, a shock-absorbing pad is provided at the connection between the positioning bracket and the hydraulic motor, and a groove is provided on the bottom surface of the positioning bracket to engage with the positioning buckle.

[0012] By adopting the above technical solution, the shock-absorbing pad reduces the transmission of hydraulic motor vibration to the positioning bracket, protects the bracket and related components, prevents buckle displacement, and ensures the reliability of the locking limit.

[0013] Preferably, the punch drive shaft, punch connecting part and punch body are arranged in a coaxial direction, and the punch connecting part and punch body pass through the preset holes in the movable support plate and are clearance-fitted.

[0014] By adopting the above technical solution, the punch drive shaft, punch connection part, and punch body are coaxial, ensuring smooth and lossless power transmission.

[0015] Preferably, the guide ring is bolted to the surface of the movable support plate, and a rubber ring is provided on the outer wall surface through which the guide ring penetrates the movable support plate.

[0016] By adopting the above technical solution, the outer wall rubber ring reduces the wear between the guide ring and the moving bearing plate, and can also buffer vibration and extend the service life of the component.

[0017] Preferably, the lifting guide rail passes through the side wall of the movable support plate, and the lifting guide rail and the movable support plate are slidably connected in a vertical direction.

[0018] The above technical solution uses a lifting guide rail that slides vertically through the moving support plate to prevent the support plate from shifting during lifting, improves the feed adjustment accuracy, and precisely adapts to different hole depth requirements.

[0019] Preferably, the auxiliary positioning plate has a circular hole, and a rubber pad is fitted inside the circular hole of the auxiliary positioning plate.

[0020] The above technical solution is adopted to enhance the friction between the positioning pin and the plate body by using the rubber pad inside the round hole of the auxiliary positioning plate, thus preventing the positioning pin from loosening.

[0021] Compared with the prior art, the beneficial effects of this utility model are: the adjustable punching device for mining with locking and limiting:

[0022] 1. Through the coordinated structure of the positioning buckle, punch connection and positioning bracket, connection failure caused by high frequency vibration is effectively avoided. The top of the positioning buckle is engaged with the preset groove on the bottom surface of the positioning bracket, and at the same time, the radial displacement of the punch drive shaft is precisely limited to prevent it from shifting when rotating or bearing the reaction force of punching. The punch drive shaft and the punch connection are connected by threads, and the punch connection and the punch body are engaged by convex and concave fit. The double connection structure enhances the reliability of power transmission and further reduces the risk of connection loosening.

[0023] 2. The lifting guide rail is vertically installed on the upper sleeve surface of the lifting frame. Its slide is connected to the side wall of the movable bearing plate. By controlling the slide to move vertically along the guide rail, the movable bearing plate can be driven to rise and fall synchronously, thereby driving the punch body to change its vertical position. The adjustment process does not require manual disassembly or prying. The punch connection part, the punch body and the movable bearing plate are fitted with pre-set holes. With the axial guiding effect of the guide ring on the punch connection part, the overall height can be flexibly adjusted according to the working space to adapt to the space requirements of different mining scenarios.

[0024] 3. The guide ring is inserted into the preset hole of the moving support plate, and a rubber ring is set on the outer wall surface. This ensures accurate guidance of the axial movement of the punch connection part and reduces the wear between the guide ring and the moving support plate. The rubber pad in the round hole of the auxiliary positioning plate, together with the positioning pin, can enhance the friction between the device and the working surface, while buffering the punching vibration, improving the punching accuracy, and further reducing the fatigue wear of the components caused by vibration. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the overall internal side section of the present invention.

[0027] Figure 3 This is a schematic diagram of the overall internal three-dimensional structure of this utility model;

[0028] Figure 4 This is a schematic diagram of the overall disassembled three-dimensional structure of this utility model;

[0029] Figure 5 A three-dimensional structural diagram of the installation of the lifting guide rail and the movable support plate of this utility model;

[0030] Figure 6 This is a three-dimensional structural diagram of the installation of the buffer spring and guide ring of this utility model.

[0031] In the diagram: 1. Lifting frame; 2. Positioning bracket; 3. Positioning buckle; 4. Hydraulic motor; 5. Punch drive shaft; 6. Punch connection part; 7. Punch body; 8. Buffer spring; 9. Guide ring; 10. Positioning pin; 11. Lifting guide rail; 12. Moving bearing plate; 13. Auxiliary positioning plate. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figures 1-6 This utility model provides a technical solution: an adjustable mining punching device with snap-fit ​​and limiting, including a lifting frame 1, a positioning bracket 2, a positioning buckle 3, a hydraulic motor 4, a punch drive shaft 5, a punch connecting part 6, a punch body 7, a buffer spring 8, a guide ring 9, a positioning pin 10, a lifting guide rail 11, a movable bearing plate 12, and an auxiliary positioning plate 13.

[0034] Among them, the lifting frame 1 is a lifting support with two-section sleeve rods and sliding connection. The bottom end of the lifting frame 1 is connected to the positioning support 2, and the positioning support 2 and the two lifting frames 1 constitute the main support for the punching equipment.

[0035] The inner wall of the lifting frame 1 is provided with a raised plate, and the plate of the lifting frame 1 is penetrated by the positioning nail 10. The connection between the positioning bracket 2 and the hydraulic motor 4 is provided with a shock-absorbing pad, and the bottom end of the positioning bracket 2 is provided with a groove that engages with the positioning buckle 3. The positioning bracket 2 has a hole, and the hole of the positioning bracket 2 is penetrated by the output end of the hydraulic motor 4. The output end of the hydraulic motor 4 is connected to the punch drive shaft 5, and the punch drive shaft 5 passes through the positioning buckle 3. The top end of the positioning buckle 3 is engaged with the bottom end of the positioning bracket 2. The bottom end of the punch drive shaft 5 is threaded to the punch connection part 6, and the punch connection part 6 is engaged with the punch body 7 in a convex-concave engagement. The punch drive shaft 5, the punch connection part 6 and the punch body 7 are arranged in sequence along the same axis, and the punch connection part 6 and the punch body 7 pass through the pre-set hole in the movable bearing plate 12 and are clearance-fitted.

[0036] Referring to the attached diagrams in the instruction manual Figures 1-6 As shown, the bottom end of the lifting frame 1, which has a two-section sleeve rod that slides together, is connected to the positioning bracket 2, so that the positioning bracket 2 and the two lifting frames 1 constitute the main support bracket of the device.

[0037] The output end of the hydraulic motor 4 is passed through the hole of the positioning bracket 2, so that the output end of the hydraulic motor 4 is connected to the punch drive shaft 5. At the same time, the punch drive shaft 5 is passed through the positioning buckle 3, and the top of the positioning buckle 3 is engaged in the groove preset on the bottom end face of the positioning bracket 2. The bottom end of the punch drive shaft 5 is connected to the punch connecting part 6 by thread. The punch connecting part 6 and the punch body 7 are engaged by convex and concave fitting. The buffer spring 8 is wrapped around the outside of the punch connecting part 6, and its top end is fixed to the bottom end of the guide ring 9 by bolts. The bottom end is in contact with the upper end face of the punch body 7. Then the guide ring 9 is inserted into the preset hole of the movable bearing plate 12.

[0038] The side wall of the movable bearing plate 12 is connected to the slide of the lifting guide rail 11. The lifting guide rail 11 is vertically installed on the upper sleeve surface of the lifting frame 1. The auxiliary positioning plate 13 is placed below the movable bearing plate 12. The positioning nail 10 penetrates the movable bearing plate 12, the auxiliary positioning plate 13 and the plate body protruding from the inner wall of the lifting frame 1. In addition, a shock-absorbing pad is installed at the connection between the positioning bracket 2 and the hydraulic motor 4. A rubber pad is fitted inside the round hole of the auxiliary positioning plate 13. A rubber ring is installed on the outer wall surface through which the guide ring 9 penetrates the movable bearing plate 12.

[0039] The upper end face of the punch body 7 is connected to the bottom end of the buffer spring 8, and the buffer spring 8 surrounds the outside of the punch connection part 6. The top end of the buffer spring 8 is fixed to the bottom end of the guide ring 9 by bolts, and the guide ring 9 is inserted into the preset hole of the movable support plate 12. There is an auxiliary positioning plate 13 below the movable support plate 12, and both the movable support plate 12 and the auxiliary positioning plate 13 are penetrated by positioning pins 10. The side wall of the movable support plate 12 is connected to the slide of the lifting guide rail 11, and the lifting guide rail 11 is vertically installed on the upper end sleeve surface of the lifting frame 1. The guide ring 9 is installed on the surface of the movable support plate 12 by bolts, and a rubber ring is provided on the outer wall surface through which the guide ring 9 penetrates the movable support plate 12. The lifting guide rail 11 penetrates the side wall surface of the movable support plate 12, and the lifting guide rail 11 and the movable support plate 12 are slidably connected in a vertical direction. A round hole is opened in the auxiliary positioning plate 13, and a rubber pad is fitted inside the round hole of the auxiliary positioning plate 13.

[0040] Referring to the attached diagrams in the instruction manual Figures 1-6 As shown, the positioning pin 10 is inserted into the mining face. With the help of the buffer and friction-increasing effect of the rubber pad in the round hole of the auxiliary positioning plate 13, the device is stably fixed in the working position. By starting the hydraulic motor 4, its output end drives the punch drive shaft 5 to rotate. Through the threaded connection between the punch drive shaft 5 and the punch connection part 6, and the convex and concave engagement between the punch connection part 6 and the punch body 7, the rotational torque is transmitted to the punch body 7 in sequence, causing the punch body 7 to rotate at high speed and impact and drill holes in the rock mass of the mining face.

[0041] During the punching process, the positioning buckle 3 engages with the groove of the positioning bracket 2 and passes through the punch drive shaft 5, which can limit the radial displacement of the punch drive shaft 5 and prevent it from shifting when rotating or subjected to the punching reaction force, thus ensuring stable power transmission. During use, according to the hole depth required for mining operations, the slide of the lifting guide rail 11 is controlled to move vertically along the guide rail, driving the moving support plate 12 to rise and fall synchronously. In conjunction with the extension and retraction of the lifting frame 1, the vertical height position of the punch body 7 is changed, thereby adjusting the punching depth. During punching, the buffer spring 8 absorbs the reaction force of the punch body 7, preventing rigid impact damage to the parts. The guide ring 9 is inserted into the hole of the moving support plate 12, which guides the axial movement of the buffer spring 8 and the punch connection part 6, ensuring movement accuracy. The shock-absorbing pad at the connection between the positioning bracket 2 and the hydraulic motor 4 reduces the transmission of vibration of the hydraulic motor 4 to the bracket, improving the stability of the device operation.

[0042] Working principle: When using the adjustable mining punching device with locking limit, start the hydraulic motor 4, and its output end drives the punch drive shaft 5 to rotate; since the bottom end of the punch drive shaft 5 is threadedly connected to the punch connection part 6, and the punch connection part 6 and the punch body 7 are engaged in a convex-concave manner, the rotational torque is transmitted in sequence, causing the punch body 7 to rotate at high speed and impact and punch holes in the rock mass of the mining face.

[0043] Meanwhile, the top of the positioning buckle 3 engages with the pre-set groove at the bottom of the positioning bracket 2, and the punch drive shaft 5 passes through the positioning buckle 3, limiting the radial displacement of the punch drive shaft 5, realizing the engagement limit, ensuring stable power transmission, and controlling the slide of the lifting guide rail 11 to move along the vertical guide rail according to the punching depth, driving the moving bearing plate 12 to rise and fall synchronously, and cooperating with the lifting frame 1 to adjust the vertical height of the punch body 7, thereby adapting to different hole depth requirements;

[0044] During the punching process, the buffer spring 8 surrounds the punch connection part 6, and its top end is fixed to the bottom end of the guide ring 9 by bolts. The bottom end is in contact with the upper end face of the punch body 7 to absorb the counter-impact force. Since the guide ring 9 is inserted into the preset hole of the movable bearing plate 12, it guides the axial movement of the buffer spring 8 and the punch connection part 6. In addition, the positioning pin 10 penetrates the auxiliary positioning plate 13, the movable bearing plate 12 and the inner wall protrusion plate of the lifting frame 1, and is inserted into the working surface. It works with the rubber pad in the round hole of the auxiliary positioning plate 13 to enhance stability. The shock-absorbing pad at the connection between the positioning bracket 2 and the hydraulic motor 4 reduces vibration transmission, ensures the smooth operation of the device, and increases the overall practicality.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable punching device for mining with snap-fit ​​and limiting, comprising: The lifting frame (1) is a lifting support with two-section sleeve rods and sliding connection. The bottom end of the lifting frame (1) is connected to the positioning bracket (2), and the positioning bracket (2) and the two lifting frames (1) constitute the main support for the punching equipment. The feature is that: the positioning bracket (2) has a hole, and the hole of the positioning bracket (2) is penetrated by the output end of the hydraulic motor (4), the output end of the hydraulic motor (4) is connected to the punch drive shaft (5), and the punch drive shaft (5) penetrates the positioning buckle (3), and the top of the positioning buckle (3) is engaged with the bottom surface of the positioning bracket (2), the bottom end of the punch drive shaft (5) is threadedly connected to the punch connecting part (6), and the punch connecting part (6) is engaged with the punch body (7) in a convex-concave fit. The upper end face of the punch body (7) is connected to the bottom end of the buffer spring (8), and the buffer spring (8) surrounds the outside of the punch connection part (6). The top end of the buffer spring (8) is fixed to the bottom end of the guide ring (9) by bolts, and the guide ring (9) is inserted into the preset hole of the movable support plate (12). There is an auxiliary positioning plate (13) below the movable support plate (12), and both the movable support plate (12) and the auxiliary positioning plate (13) are penetrated by positioning nails (10). The side wall of the movable support plate (12) is connected to the slide of the lifting guide rail (11), and the lifting guide rail (11) is vertically installed on the upper end sleeve surface of the lifting frame (1).

2. The adjustable punching device for mining with snap-fit ​​limiting according to claim 1, characterized in that: The inner wall of the lifting frame (1) is provided with a protruding plate, and the plate of the lifting frame (1) is penetrated by a positioning nail (10).

3. The adjustable punching device for mining with snap-fit ​​and limiting as described in claim 1, characterized in that: The positioning bracket (2) is provided with a shock-absorbing pad at the connection between it and the hydraulic motor (4), and the bottom surface of the positioning bracket (2) is provided with a groove that engages with the positioning buckle (3).

4. The adjustable punching device for mining with snap-fit ​​and limiting as described in claim 1, characterized in that: The punch drive shaft (5), punch connection part (6) and punch body (7) are arranged in the same direction along the axis, and the punch connection part (6) and punch body (7) pass through the preset holes in the movable support plate (12) and are fitted with clearance.

5. The adjustable punching device for mining with snap-fit ​​limiting according to claim 1, characterized in that: The guide ring (9) is bolted to the surface of the movable support plate (12), and a rubber ring is provided on the outer wall surface through which the guide ring (9) penetrates the movable support plate (12).

6. The adjustable punching device for mining with snap-fit ​​limiting according to claim 1, characterized in that: The lifting guide rail (11) passes through the side wall of the movable support plate (12), and the lifting guide rail (11) and the movable support plate (12) are slidably connected in the vertical direction.

7. The adjustable punching device for mining with snap-fit ​​and limiting as described in claim 1, characterized in that: The auxiliary positioning plate (13) has a round hole, and a rubber pad is fitted inside the round hole of the auxiliary positioning plate (13).

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