A slack rope protection device for underground coal mine transport winches

Abstract

A slack rope protection device for an underground coal mine transport winch is disclosed. The device includes a winch body and a base. Multiple sets of force-bearing ropes are installed on the base, and a force monitoring component connected to the force-bearing ropes is located inside the base. A bottom groove is provided at the bottom of the base, and an airbag is installed inside the groove. A support plate is slidably installed at the bottom of the groove. The lower side of the airbag is fixedly connected to the upper side of the support plate. A mounting groove is provided in the middle of the base, and a bidirectional air pump is installed inside the mounting groove. An air guide pipe connects the bidirectional air pump to the airbag, and a one-way exhaust valve is installed on one side of the airbag. The advantages of this invention compared to existing technologies are: the rapid inflation of the airbag acts as a buffer structure for the base; the one-way exhaust valve allows some of the gas in the airbag to be discharged, buffering the relatively strong impact force between the support plate and the ground; and the bidirectional air pump discharges the gas from the airbag, providing stable support for the base and the winch body.

Description

Technical Field

[0001] This utility model relates to the field of transport winch technology, specifically to a slack rope protection device for underground transport winches in coal mines. Background Technology

[0002] Safety has always been the most critical issue in the mining industry, especially in underground mining. Although safety levels have greatly improved with enhanced management and increased mechanization, accidents still occur frequently. Transport winches typically require a slack rope safety mechanism when being lowered into the mine.

[0003] When the winch rope breaks, although the transport winch can descend slowly under the action of the safety mechanism, the bottom may still have a relatively strong impact with the ground, which may cause injury to the winch chassis and personnel inside the winch. The buffer structure in the existing slack rope protection mechanism is usually a damper and spring installed on the underside of the base to achieve a good buffering effect. However, this buffer structure is always supported on the ground, and it is easy to shake when the workers are getting on and off the transport winch, causing the workers to lose their balance.

[0004] To address the aforementioned technical problems, this application proposes a slack rope protection device for underground coal mine transport winches. Utility Model Content

[0005] I. Technical problems to be solved

[0006] The technical problem this invention aims to solve is that the damper and spring buffer structure are always supported on the ground, which makes them prone to swaying when workers are getting on and off the transport winch.

[0007] II. Technical Solution

[0008] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a slack rope protection device for underground coal mine transport winches, including a winch body and a base, wherein the winch body is fixedly installed on the upper side of the base, and multiple sets of force-bearing ropes are installed on the base and on both sides of the winch body, and a force monitoring component connected to the force-bearing ropes is provided inside the base.

[0009] The base has a bottom groove, an airbag is installed inside the bottom groove, a support plate is slidably installed at the bottom of the bottom groove, the lower side of the airbag is fixedly connected to the upper side of the support plate, the middle part of the base has an installation groove, a two-way air pump is installed inside the installation groove, an air guide tube is connected between the two-way air pump and the airbag, and a one-way exhaust valve is installed on one side of the airbag.

[0010] The mounting slot contains a control unit, which is connected to the force monitoring component and the bidirectional air pump.

[0011] As an improvement, positioning blocks are provided at the four corners of the bottom groove opening, a sliding rod slides through the inside of the positioning block, a connecting block is installed on the top of the sliding rod, a spring is connected between the upper side of the positioning block and the connecting block, and the lower end of the sliding rod is connected to the support plate.

[0012] As an improvement, the force monitoring component includes a telescopic rod and a spring. The upper inner side of the base is provided with a mounting cavity. The telescopic rod and the spring are installed at the bottom of the mounting cavity. A pressure plate is installed at the extended end of the telescopic rod. The pressure plate is connected to the top of the spring. The force rope slides through the mounting cavity and is connected to the upper side of the pressure plate.

[0013] As an improvement, a force-triggered switch is installed on the top of the mounting cavity, and the force-triggered switch is connected to the control unit.

[0014] As an improvement, the bottom of the airbag protrudes from inside the bottom groove after it inflates.

[0015] As an improvement, multiple sets of protective support strips are installed on the lower side of the support plate.

[0016] III. Beneficial Effects

[0017] The advantages of this utility model compared with the prior art are as follows: by rapidly inflating the airbag as a buffer structure for the base, when the support plate collides with the ground, a one-way exhaust valve can discharge some of the gas in the airbag, which buffers the relatively strong impact force between the support plate and the ground, and protects the winch chassis and the personnel inside the winch. After the base contacts the ground, the gas in the airbag is discharged by the bidirectional air pump, so that the support plate contacts the base, and the base and the winch body have stable support, so that there will be no shaking when the workers are transporting the winch up and down. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the upper structure of a slack rope protection device for an underground coal mine transport winch according to this utility model.

[0019] Figure 2 This is a schematic diagram of the lower structure of a slack rope protection device for an underground transport winch in a coal mine, according to this utility model.

[0020] Figure 3 This is a schematic diagram of the bottom structure of the base of a slack rope protection device for an underground coal mine transport winch, according to this utility model.

[0021] Figure 4 This is a schematic diagram of the airbag connection structure of a slack rope protection device for an underground coal mine transport winch.

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the base of a slack rope protection device for an underground coal mine transport winch according to this utility model.

[0023] Figure 6 This is an enlarged view of section A of the structure of a slack rope protection device for an underground coal mine transport winch according to this utility model.

[0024] As shown in the figure: 1. Winch body; 2. Base; 3. Force rope; 4. Mounting cavity; 5. Telescopic rod; 6. Spring 1; 7. Pressure plate; 8. Force trigger switch; 9. Mounting slot; 10. Two-way air pump; 11. Air guide pipe; 12. Control unit; 13. Airbag; 14. Support plate; 15. Bottom groove; 16. Slide rod; 17. Spring 2; 18. Connecting block; 19. One-way exhaust valve; 20. Positioning block; 21. Protective support bar. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] As attached Figure 1 Appendix Figure 5 and attached Figure 6 As shown, a slack rope protection device for a coal mine underground transport winch includes a winch body 1 and a base 2. The winch body 1 is fixedly installed on the upper side of the base 2. Multiple sets of force-bearing ropes 3 are installed on the base 2 and on both sides of the winch body 1. A force monitoring component connected to the force-bearing ropes 3 is provided inside the base 2. The force monitoring component includes a telescopic rod 5 and a spring 6. An installation cavity 4 is provided on the upper inner side of the base 2. The telescopic rod 5 and the spring 6 are installed at the bottom of the installation cavity 4. A pressure plate 7 is installed at the extended end of the telescopic rod 5. The pressure plate 7 is connected to the top of the spring 6. The force-bearing rope 3 slides through the installation cavity 4 and is connected to the upper side of the pressure plate 7. When the winch disconnects, the force-bearing rope 3 becomes the traction rope of the winch. After the winch body 1 falls, the telescopic rod 5 and the spring 6 extend and unfold, causing the pressure plate 7 to move upward inside the installation cavity 4. A force trigger switch 8 is installed at the top of the installation cavity 4. The pressure plate 7 squeezes the force trigger switch 8.

[0027] The base 2 has a mounting groove 9 in the middle, and a control unit 12 is installed inside the mounting groove 9. The force trigger switch 8 is connected to the control unit 12, and the force trigger switch 8 sends a signal to the control unit 12.

[0028] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 and attached Figure 4As shown, the base 2 has a bottom groove 15 at the bottom, and a support plate 14 is slidably installed at the bottom of the bottom groove 15. Positioning blocks 20 are respectively provided at the four corners of the groove opening of the bottom groove 15. A sliding rod 16 slides through the inside of the positioning block 20. A connecting block 18 is installed on the top of the sliding rod 16. A spring 17 is connected between the upper side of the positioning block 20 and the connecting block 18. The lower end of the sliding rod 16 is connected to the support plate 14.

[0029] An airbag 13 is installed inside the bottom groove 15. The lower side of the airbag 13 is fixedly connected to the upper side of the support plate 14. A bidirectional air pump 10 is installed inside the mounting groove 9. An air guide pipe 11 is connected between the bidirectional air pump 10 and the airbag 13. The control unit 12 is connected to the bidirectional air pump 10. The control unit 12 starts the bidirectional air pump 10 and sends air into the airbag 13 through the bidirectional air pump 10 and the air guide pipe 11. After the airbag 13 inflates, its bottom protrudes from inside the bottom groove 15, pushing the support plate 14 away from the base 2, so that there is a buffer space between the base 2 and the base 2. At this time, multiple sets of springs 17 are compressed by the connecting block 18. When the support plate 14 contacts the ground, it squeezes the airbag 13. A one-way exhaust valve 19 is installed on one side of the airbag 13. Through the one-way exhaust valve 19, some of the gas in the airbag 13 is squeezed out, which buffers the relatively strong impact force between the support plate 14 and the ground, and protects the winch chassis and the personnel inside the winch.

[0030] Multiple sets of protective support bars 21 are installed on the lower side of the support plate 14 to protect the support plate 14.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] 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.

[0033] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A slack rope protection device for a coal mine underground transport winch, comprising a winch body (1) and a base (2), wherein the winch body (1) is fixedly installed on the upper side of the base (2), and multiple sets of force-bearing ropes (3) are installed on the base (2) and on both sides of the winch body (1), characterized in that: The base (2) is equipped with a force monitoring component that is connected to the force rope (3); The base (2) has a bottom groove (15) at the bottom, an airbag (13) is installed inside the bottom groove (15), a support plate (14) is slidably installed at the bottom of the bottom groove (15), the lower side of the airbag (13) is fixedly connected to the upper side of the support plate (14), the base (2) has an installation groove (9) in the middle, a two-way air pump (10) is installed inside the installation groove (9), an air guide pipe (11) is connected between the two-way air pump (10) and the airbag (13), and a one-way exhaust valve (19) is installed on one side of the airbag (13); The mounting slot (9) is equipped with a control unit (12), which is connected to the force monitoring component and the bidirectional air pump (10).

2. The slack rope protection device for underground coal mine transport winches according to claim 1, characterized in that: Positioning blocks (20) are provided at the four corners of the bottom groove (15). A sliding rod (16) slides through the inside of the positioning block (20). A connecting block (18) is installed on the top of the sliding rod (16). A spring (17) is connected between the upper side of the positioning block (20) and the connecting block (18). The lower end of the sliding rod (16) is connected to the support plate (14).

3. The slack rope protection device for underground coal mine transport winches according to claim 1, characterized in that: The force monitoring component includes a telescopic rod (5) and a spring (6). The upper inner side of the base (2) is provided with an installation cavity (4). The telescopic rod (5) and the spring (6) are installed at the bottom of the installation cavity (4). A pressure plate (7) is installed at the extended end of the telescopic rod (5). The pressure plate (7) is connected to the top of the spring (6). The force rope (3) slides through the installation cavity (4) and is connected to the upper side of the pressure plate (7).

4. The slack rope protection device for underground coal mine transport winches according to claim 3, characterized in that: A force-triggered switch (8) is installed on the top of the mounting cavity (4), and the force-triggered switch (8) is connected to the control unit (12).

5. A slack rope protection device for underground coal mine transport winches according to claim 1, characterized in that: After the airbag (13) inflates, its bottom protrudes from inside the bottom groove (15).

6. The slack rope protection device for underground coal mine transport winches according to claim 1, characterized in that: Multiple sets of protective support strips (21) are installed on the lower side of the support plate (14).

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