Weighing device with buffer structure for quantitative lifting system of mine main shaft

Abstract

The utility model provides a weighing device with a buffer structure in a quantitative lifting system of a mine main shaft, which relates to the technical field of weighing devices and comprises a bottom plate, a guide sleeve arranged at the top of the bottom plate, a pressing seat arranged on the inner wall of the guide sleeve, and a pressing head arranged at the top of the pressing seat. A corrugated pipe located on the outer side of the guide sleeve and connected with the top of the bottom plate is arranged at the bottom of the pressing base, a first buffering cavity is formed among the bottom of the pressing base, the inner wall of the guide sleeve and the top of the bottom plate, and a second buffering cavity is formed among the side wall of the pressing base, the side wall of the guide sleeve, the inner wall of the corrugated pipe and the top of the bottom plate. The side wall of the guide sleeve is provided with a plurality of communicating grooves used for communicating the first buffer cavity with the second buffer cavity, a liquid guide groove communicating with the second buffer cavity is formed in the bottom plate, and the top of the bottom plate is provided with a pressure sensor communicating with the liquid guide groove. The buffering device is reasonable in structure, good in buffering effect and long in service life.

Description

Technical Field

[0001] This utility model relates to the field of weighing device technology, specifically to a weighing device with a buffer structure used in a quantitative hoisting system for a main shaft in a mine. Background Technology

[0002] The main shaft quantitative hoisting system of the mine uses skips as hoisting containers. One skip is conveyed by a conveyor at the bottom of the shaft. After being weighed by a weighing device, i.e. a quantitative bucket with a weighing sensor, the material is unloaded into the skip and automatically loaded. Then it is hoisted to the ground for unloading. The other skip descends from the ground to the mine and is filled in the same way.

[0003] In existing technologies, when weighing materials conveyed by a conveyor, the materials are relatively heavy, such as iron blocks or wood. The height difference between the conveyor and the weighing device generates a significant impact force on the device. The lack of cushioning easily leads to damage and a reduced lifespan of the weighing device. A weighing device with a buffer structure is needed in the quantitative hoisting system of the main shaft of a mine to solve these problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a weighing device with a buffer structure for use in the quantitative hoisting system of the main shaft of a mine, so as to solve the problems mentioned in the background technology. This utility model has a reasonable structure, good buffering effect and long service life.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a weighing device with a buffer structure for use in a quantitative hoisting system of a mine main shaft, comprising:

[0006] The base plate has a guide sleeve on its top, a pressure seat on its inner wall, a pressing head on its top, and a corrugated tube on its bottom that is located outside the guide sleeve and connected to the top of the base plate. A first buffer cavity is formed between the bottom of the pressure seat, the inner wall of the guide sleeve, and the top of the base plate. A second buffer cavity is formed between the side wall of the pressure seat, the side wall of the guide sleeve, the inner wall of the corrugated tube, and the top of the base plate. The side wall of the guide sleeve has multiple communicating grooves for connecting the first and second buffer cavities. A liquid guiding groove connected to the second buffer cavity is formed inside the base plate. A pressure sensor connected to the liquid guiding groove is located on the top of the base plate.

[0007] Furthermore, the pressure seat includes a guide post disposed on the inner wall of the guide sleeve, the top of the pressure seat is provided with a threaded hole, the side wall of the guide post extends with an extension plate, and the upper end surface of the extension plate is flush with the upper end surface of the guide post.

[0008] Furthermore, the pressing head includes a threaded post disposed inside the threaded hole, and a mushroom head protruding from the top of the guide post is disposed inside the threaded post.

[0009] Furthermore, a first buffer cavity is formed between the bottom of the guide post, the inner wall of the guide sleeve, and the top of the base plate, and a second buffer cavity is formed between the side wall of the guide post, the bottom of the extension plate, the inner wall of the corrugated pipe, and the top of the base plate.

[0010] Furthermore, the top of the base plate is provided with a connector seat for connecting the pressure sensor, and the bottom of the connector seat is provided with a connecting hole for connecting the detection head of the pressure sensor to the liquid guide groove.

[0011] Furthermore, the liquid guiding groove includes a transverse groove disposed inside the base plate, a first vertical groove is provided on the top of the base plate for connecting the transverse groove with the second buffer cavity, and a second vertical groove is provided on the top of the base plate for connecting the connecting hole with the transverse groove.

[0012] Furthermore, the pressure seat has an oil injection hole on its top, an internal thread inside the oil injection hole, a screw inside the oil injection hole, and an O-ring seal on the side wall of the screw.

[0013] Furthermore, the mushroom head sidewall is provided with a protective cover located outside the pressure seat.

[0014] Furthermore, the top of the connector seat is provided with a protective tube located outside the pressure sensor, and the side wall of the protective tube is provided with a wire outlet.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows:

[0016] This invention utilizes a metering hopper to drive a pressing head downwards. This downward movement of the pressing head causes a guide column in the pressure seat to move downwards along the inner wall of the guide sleeve, compressing the hydraulic oil inside the guide sleeve. The hydraulic oil flows from the first buffer chamber through a connecting groove into the second buffer chamber, buffering the pressing action of the metering hopper, enhancing the buffering effect, and extending service life. Simultaneously, the downward movement of the pressure seat compresses the bellows, further buffering the pressing head on the pressure seat, further enhancing the buffering effect and extending service life. Finally, the hydraulic oil, under the action of the guide groove, comes into contact with a pressure sensor to detect the pressure, thereby weighing the material inside the metering hopper. Attached Figure Description

[0017] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0018] Figure 1This is a schematic diagram of a weighing device with a buffer structure used in a quantitative hoisting system for a mine main shaft according to an embodiment of the present invention.

[0019] Figure 2 According to an embodiment of the present utility model Figure 1 Enlarged view of A in the middle;

[0020] Figure 3 This is a top view of a weighing device with a buffer structure used in a quantitative hoisting system for a mine main shaft according to an embodiment of the present invention;

[0021] In the diagram: 1. Base plate; 2. Protective cover; 3. Press head; 31. Threaded post; 32. Mushroom head; 4. Pressure seat; 41. Guide post; 411. Threaded hole; 42. Extension plate; 5. Screw; 51. O-ring seal; 6. Bellows; 7. Guide sleeve; 71. First buffer chamber; 72. Connecting groove; 8. Second buffer chamber; 9. Liquid guiding groove; 91. First vertical groove; 92. Horizontal groove; 93. Second vertical groove; 10. Connector seat; 101. Connecting hole; 11. Pressure sensor; 12. Protective tube; 13. Outlet nozzle. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] like Figure 1 As shown, this utility model provides a technical solution: a weighing device with a buffer structure for use in a quantitative hoisting system of a mine main shaft, comprising:

[0024] The base plate 1 has a guide sleeve 7 on its top, a pressure seat 4 on its inner wall, a pressing head 3 on its top, and a corrugated tube 6 on its bottom that is located outside the guide sleeve 7 and connected to the top of the base plate 1. A first buffer cavity 71 is formed between the bottom of the pressure seat 4, the inner wall of the guide sleeve 7, and the top of the base plate 1. A second buffer cavity 8 is formed between the side wall of the pressure seat 4, the side wall of the guide sleeve 7, the inner wall of the corrugated tube 6, and the top of the base plate 1. The side wall of the guide sleeve 7 has multiple connecting grooves 72 for connecting the first buffer cavity 71 and the second buffer cavity 8. A liquid guiding groove 9 connected to the second buffer cavity 8 is provided inside the base plate 1. A pressure sensor 11 connected to the liquid guiding groove 9 is provided on the top of the base plate 1.

[0025] When the material conveyed by the conveyor falls into the metering hopper, the design ensures that the metering hopper presses down on the pressing head 3 because there is a groove at the bottom of the metering hopper located directly above the pressing head 3, and the center of the metering hopper is located on the vertical line of this groove. The pressing head 3 moves downward, causing the pressing seat 4 to move downward along the guide sleeve 7, squeezing the hydraulic oil inside the guide sleeve 7. The hydraulic oil flows from the first buffer chamber 71 through the connecting groove 72 into the second buffer chamber 8, and under the action of the liquid guide groove 9, it comes into contact with the pressure sensor 11, buffering the pressing of the metering hopper, enhancing the buffering effect, and improving service life. At the same time, the downward movement of the pressing seat 4 causes the bellows 6 to compress, further buffering the pressing head 3 on the pressing seat 4, further enhancing the buffering effect and improving service life. Finally, under the action of the liquid guide groove 9, the hydraulic oil comes into contact with the pressure sensor 11 to complete the pressure detection, and then weigh the material inside the metering hopper.

[0026] Reference Figure 1 The pressure seat 4 includes a guide post 41 disposed on the inner wall of the guide sleeve 7. A threaded hole 411 is provided at the top of the pressure seat 4. An extension plate 42 extends from the side wall of the guide post 41, with the upper end face of the extension plate 42 flush with the upper end face of the guide post 41. This design limits the guide post 41 through the extension plate 42. The pressing head 3 includes a threaded post 31 disposed inside the threaded hole 411, with a mushroom head 32 protruding from the top of the guide post 41 inside the threaded post 31. This design connects the threaded post 31 to the threaded hole 411 on the pressure seat 4, allowing adjustment of the height of the mushroom head 32 for easy on-site installation. This ensures that the mushroom head 32 can be embedded in the groove at the bottom of the metering hopper, allowing the weight of the metering hopper to be applied to the mushroom head 32.

[0027] Reference Figure 1 and Figure 2 A first buffer cavity 71 is formed between the bottom of the guide post 41, the inner wall of the guide sleeve 7, and the top of the base plate 1, and a second buffer cavity 8 is formed between the side wall of the guide post 41, the bottom of the extension plate 42, the inner wall of the bellows 6, and the top of the base plate 1. This improves the rationality of the design.

[0028] Reference Figure 1 The base plate 1 has a connector 10 at its top for connecting to the pressure sensor 11. The connector 10 has a connecting hole 101 at its bottom for connecting the detection head of the pressure sensor 11 to the liquid guide tank 9. This design facilitates connection of the pressure sensor 11 via the connector 10. A sealing gasket is provided at the connection point between the pressure sensor 11 and the connector 10 to improve the sealing performance. The connecting hole 101 allows the detection head of the pressure sensor 11 to detect the pressure of the hydraulic oil flowing in the liquid guide tank 9, thereby enabling the weighing of materials.

[0029] Reference Figure 1The fluid guide groove 9 includes a transverse groove 92 disposed inside the base plate 1. A first vertical groove 91 is formed on the top of the base plate 1 to connect the transverse groove 92 to the second buffer chamber 8. A second vertical groove 93 is formed on the top of the base plate 1 to connect the connecting hole 101 to the transverse groove 92. This design, through the transverse groove 92, the first vertical groove 91, and the second vertical groove 93, facilitates contact between the hydraulic oil and the detection head of the pressure sensor 11.

[0030] Reference Figure 2 The pressure seat 4 has an oil injection hole on its top, with internal threads inside. A screw 5 is installed inside the oil injection hole, and an O-ring 51 is fitted on the side wall of the screw 5. This design allows hydraulic oil to be easily injected into the second buffer chamber 8 through the oil injection hole, and the hydraulic oil flows into the first buffer chamber 71 through the connecting groove 72. The screw 5 and the O-ring 51 facilitate sealing of the oil injection hole.

[0031] Reference Figure 1 and Figure 3 The mushroom head 32 has a protective cover 2 located outside the pressure seat 4 on its side wall. This design protects the pressure seat 4 and the bellows 6 through the protective cover 2.

[0032] Reference Figure 3 The connector 10 has a protective tube 12 located on the outside of the pressure sensor 11 at its top, and a wire outlet 13 is provided on the side wall of the protective tube 12. This design facilitates the protection of the pressure sensor 11 through the protective tube 12; the wire outlet 13 facilitates the connection of the wire to the pressure sensor 11, while the protective tube 12 protects the wire.

[0033] Reference Figures 1-3 ,in, Figure 1The black parts are all weld points, ensuring the sealing of the connection. As one embodiment of this utility model: when weighing materials conveyed by the conveyor, the metering hopper is first connected and installed to the pressing head 3. After installation, the metering hopper remains pressed against the pressing head 3. When the material conveyed by the conveyor falls into the metering hopper, the metering hopper presses against the pressing head 3. The pressing head 3 moves downward, causing the guide column 41 in the pressure seat 4 to move downward along the inner wall of the guide sleeve 7, squeezing the hydraulic oil inside the guide sleeve 7. The hydraulic oil flows from the first buffer chamber 71 through the connecting groove 72 into the second buffer chamber. Inside the punching cavity 8, the pressure on the metering hopper is buffered, enhancing the buffering effect and extending its service life. Simultaneously, the pressure seat 4 moves downward, causing the bellows 6 to compress, further buffering the pressing head 3 on the pressure seat 4, further enhancing the buffering effect and extending its service life. Finally, the hydraulic oil, under the action of the guide groove 9, contacts the detection head of the pressure sensor 11 to complete the pressure detection, thereby weighing the material inside the metering hopper. After the material inside the metering hopper is discharged, the bellows 6 drives the pressure seat 4 back to its initial position, facilitating the next weighing and improving the practicality of this utility model.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A weighing device with a buffer structure for use in a mine main shaft quantitative hoisting system, characterized in that, Include: The bottom plate (1), the top of the bottom plate (1) is provided with a guide sleeve (7), the inner wall of the guide sleeve (7) is provided with a pressing seat (4), the top of the pressing seat (4) is provided with a pressing head (3), the bottom of the pressing seat (4) is provided with a bellows (6) outside the guide sleeve (7) and connected with the top of the bottom plate (1), the bottom of the pressing seat (4), the inner wall of the guide sleeve (7), the top of the bottom plate (1) forms a first buffer cavity (71), the side wall of the pressing seat (4), the side wall of the guide sleeve (7), the inner wall of the bellows (6), the top of the bottom plate (1) forms a second buffer cavity (8), the side wall of the guide sleeve (7) is provided with a plurality of communication grooves (72) for communication between the first buffer cavity (71) and the second buffer cavity (8), the inside of the bottom plate (1) is provided with a liquid guide groove (9) communicated with the second buffer cavity (8), the top of the bottom plate (1) is provided with a pressure sensor (11) communicated with the liquid guide groove (9).

2. The weighing device with a buffer structure for a mine main shaft quantitative hoisting system according to claim 1, characterized in that, The pressing seat (4) includes a guide column (41) provided in the inner wall of the guide sleeve (7), the top of the pressing seat (4) is provided with a threaded hole (411), the side wall of the guide column (41) extends an extension plate (42), the upper end surface of the extension plate (42) is flush with the upper end surface of the guide column (41).

3. The weighing device with a buffer structure for a mine main shaft quantitative hoisting system according to claim 2, characterized in that, The pressing head (3) includes a threaded column (31) provided in the threaded hole (411), the threaded column (31) is provided with a mushroom head (32) protruding from the top of the guide column (41).

4. The weighing device with a buffer structure for a mine main shaft quantitative hoisting system according to claim 3, characterized in that, The bottom of the guide column (41), the inner wall of the guide sleeve (7), the top of the bottom plate (1) forms a first buffer cavity (71), the side wall of the guide column (41), the bottom of the extension plate (42), the inner wall of the bellows (6), the top of the bottom plate (1) forms a second buffer cavity (8).

5. The weighing device with a buffer structure for a quantitative hoisting system of a mine main shaft according to claim 1, characterized in that, The top of the bottom plate (1) is provided with a connector seat (10) connected with the pressure sensor (11), the bottom of the connector seat (10) is provided with a communication hole (101) for communication between the detection head of the pressure sensor (11) and the liquid guide groove (9).

6. The weighing device with a buffer structure for a mine main shaft quantitative hoisting system according to claim 5, characterized in that, The liquid guide groove (9) includes a transverse groove (92) provided in the inside of the bottom plate (1), the top of the bottom plate (1) is provided with a first vertical groove (91) for communication between the transverse groove (92) and the second buffer cavity (8), the top of the bottom plate (1) is provided with a second vertical groove (93) for communication between the communication hole (101) and the transverse groove (92).

7. The weighing device with a buffer structure for a mine main shaft quantitative hoisting system according to claim 1, characterized in that, The top of the pressing seat (4) is provided with an oil injection hole, the inside of the oil injection hole is provided with an internal thread, the inside of the oil injection hole is provided with a screw (5), the side wall of the screw (5) is provided with an O-shaped sealing ring (51).

8. The weighing device with a buffer structure for a mine main shaft quantitative hoisting system according to claim 3, characterized in that, The side wall of the mushroom head (32) is provided with a protective cover (2) outside the pressing seat (4).

9. The weighing device with a buffer structure for a mine main shaft quantitative hoisting system according to claim 5, characterized in that, The top of the connector seat (10) is provided with a protection tube (12) outside the pressure sensor (11), the side wall of the protection tube (12) is provided with a wire outlet nozzle (13).

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