Monorail crane auxiliary device

Abstract

The invention relates to the technical field of mine tunnel safety, and discloses a monorail crane auxiliary device which comprises an I-shaped steel rail, a monorail crane arranged on the I-shaped steel rail and used for transporting coal mine underground equipment in the working state, and two safety mechanisms symmetrically arranged in the running direction of the monorail crane and used for transporting coal mine underground equipment in the working state. The safety mechanisms are used for being matched with the monorail crane to assist in braking during ramp braking, and each safety mechanism comprises a carrier arranged on the surface of the monorail crane and a pressure mechanism arranged in the corresponding safety mechanism. Through the arrangement of the coordination mechanism and the safety mechanism, when the monorail crane is braked on the underground slope surface, powder in the gas storage tank and powder inside the gas storage tank are conveyed towards the surfaces of the wheels and the surfaces of the I-shaped steel rails through the powder spraying nozzles, so that when the monorail crane is braked to brake the wheels, the powder in the gas storage tank is conveyed to the surfaces of the wheels through the powder spraying nozzles; and meanwhile, the wet I-shaped steel rail is relatively dry, so that the braking efficiency between wheel rails is improved, and the reliable braking force of the monorail crane on a ramp is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of mine safety, in particular to a monorail crane auxiliary device. Background Art

[0002] As the core equipment for auxiliary transportation in modern coal mines, monorail cranes, with their unique suspended track design (usually special I-beams), can adapt to various complex tunnel environments such as flat tunnels, up and down ramps, and curves, and achieve efficient and continuous transportation of materials, equipment and personnel.

[0003] As coal mining progresses towards deeper locations and more complex geological conditions, monorail cranes are increasingly tasked with heavy-load transport, often operating in steep lanes. The driving and braking forces of current mainstream monorail cranes derive primarily from friction between the drive wheels (or drive friction pads) and the suspension rails, and between the brake pads and the rails. However, the static and kinetic friction coefficients between the drive wheel / drive pad material and the rail steel, and between the brake pad friction material and the rail steel, are essentially fixed, while ensuring wear resistance, spark resistance (required for underground explosion protection), and reliability.

[0004] Due to the above-mentioned insurmountable fixed upper limit, the maximum theoretical braking force that a monorail crane can generate is firmly restricted to a fixed range. The above-mentioned inherent mechanical limitations expose serious deficiencies in existing technologies under harsh working conditions of heavy loads and large slopes (especially downhill braking or uphill starting to prevent rollback). Summary of the Invention

[0005] The object of the present invention is to provide a monorail crane auxiliary device to solve the problem proposed in the above background art that the maximum theoretical braking force that can be generated by the monorail crane is firmly limited to a fixed range, resulting in landslide on the slope.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a monorail crane locomotive auxiliary device, comprising an I-shaped steel rail, a monorail crane locomotive arranged on the I-shaped steel rail, and used for transporting equipment underground in coal mines in working state, two sets of safety mechanisms, symmetrically arranged in the running direction of the monorail crane locomotive, for cooperating with the monorail crane locomotive to assist in braking when braking on a slope, the safety mechanism comprising a carrier arranged on the surface of the monorail crane locomotive, a pressure mechanism arranged inside each of the safety mechanisms, the pressure mechanism comprising an inclined block rotatably connected to the inside of the carrier, and a coordination mechanism arranged on the surface of each of the carriers.

[0007] Preferably, a cylinder is provided on the surface of the carrier, a movable block is fixedly connected to the output end of the cylinder, a circulation hole 1 is provided inside the movable block, a transmission block is provided inside the carrier, a circulation hole 2 is provided inside the transmission block, a powder nozzle is fixedly connected to the surface of the transmission block near the contact position between the monorail crane and the I-shaped rail, a movable rod is rotatably connected to the side of the carrier near the transmission block, a U-shaped notch is provided on the surface of the movable rod, a trigger block is provided on the side of the surface of the movable rod away from the U-shaped notch, and a telescopic rod is fixedly connected to the gap between the transmission block and the movable rod inside the carrier.

[0008] Preferably, the first flow hole opened inside the movable block is at the same level as the second flow hole opened inside the transmission block in the working state, and the interiors are interconnected. In the initial state, the interior of the transmission block is isolated as a closed chamber by the movable block.

[0009] Preferably, a spring is provided inside the telescopic rod, and the telescopic rod abuts against the movable rod in the working state.

[0010] Preferably, a contact block is provided on the surface of the inclined block, a triangular notch is opened on the surface of the contact block, and the triangular notch opens at a small angle toward the I-shaped rail, and the side of the inclined block surface close to the contact block is fixedly connected to the inner wall of the carrier through a tension component.

[0011] Preferably, the tension assembly includes a directional block and a tension spring arranged on the surface of the directional block, and the end of the tension spring is fixedly connected to the inclined block.

[0012] Preferably, in the initial state of the contact block, the contact block is prevented from contacting the I-shaped rail by the tension of a tension spring.

[0013] Preferably, the surface of the inclined block away from the contact block abuts against the U-shaped notch formed on the movable rod.

[0014] Preferably, the coordination mechanism includes an air tank arranged on the surface of the carrier, a one-way valve is fixedly connected to one end of the air tank, a vent pipe is fixedly connected to the other end of the air tank, and powder is arranged inside the air tank.

[0015] Preferably, the vent pipe is fixedly connected to the transmission block, and in an initial state, the vent pipe isolates the transmission block chamber through a movable block.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) Through the setting of coordination mechanism and safety mechanism, when the monorail crane brakes on the slope surface underground, the powder in the gas tank is used to transport the powder inside the gas tank to the surface of the wheel and the surface of the I-shaped rail through the powder spraying nozzle, so that when the monorail crane brakes on the wheel, the friction of the brake is increased, and the wet I-shaped rail is relatively dry, thereby improving the braking efficiency between the wheel and rail, and ensuring the reliable braking force of the monorail crane on the slope; (2) Through the setting of the coordination mechanism, when the monorail crane is braking, the movable rod drives the trigger block toward the bottom surface of the I-shaped rail, so that it is in close contact with the bottom surface of the I-shaped rail. The trigger block forms a wedge (V-shaped) angle with the bottom surface of the rail, producing a self-locking effect, applying an additional mechanical lock to the monorail crane, and effectively preventing the sliding phenomenon during the braking process; (3) Through the setting of the safety mechanism and the pressure mechanism, during the braking and working process of the monorail crane, the contact block contacts the surface of the I-shaped rail while the powder nozzle works intermittently, and then uses the shape of the triangular notch to clean the wet slippery objects and powder on its surface in real time, effectively keeping the rail surface clean and dry, thereby significantly improving the adhesion between the monorail crane wheel and rail and the operating safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the entire part of the present invention; Figure 3 This is a schematic diagram of the second cross-sectional structure of the present invention; Figure 4 This is a schematic diagram of the internal cross-sectional structure of the safety mechanism of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the internal part of the carrier of the present invention; Figure 6 This is a schematic diagram of the structure of the carrier of the present invention in a front view; Figure 7 It is a schematic diagram of the isolated structure of the pressure mechanism of the present invention.

[0018] In the figure: 100, I-rail; 200, monorail crane; 300, safety mechanism; 301, carrier; 302, cylinder; 303, movable block; 304, transmission block; 305, powder nozzle; 306, movable rod; 307, U-shaped notch; 308, trigger block; 309, telescopic rod; 400, pressure mechanism; 401, inclined block; 402, contact block; 403, triangular notch; 410, directional block; 411, tension spring; 500, coordination mechanism; 501, gas storage tank; 502, one-way valve. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-7 The present invention provides a technical solution: a monorail crane auxiliary device, including an I-shaped steel rail 100, a monorail crane 200 set on the I-shaped steel rail 100, which is used to transport equipment underground in coal mines in a working state, two sets of safety mechanisms 300, which are symmetrically arranged in the running direction of the monorail crane 200, and are used to cooperate with the monorail crane 200 to assist in braking when braking on a slope, the safety mechanism 300 includes a carrier 301 set on the surface of the monorail crane 200, a pressure mechanism 400, which is set inside each safety mechanism 300, the pressure mechanism 400 includes an inclined block 401 rotatably connected to the inside of the carrier 301, and a coordination mechanism 500, which is set on the surface of each carrier 301.

[0021] A cylinder 302 is provided on the surface of the carrier 301, and a movable block 303 is fixedly connected to the output end of the cylinder 302. A circulation hole 1 is provided inside the movable block 303. A transmission block 304 is provided inside the carrier 301, and a circulation hole 2 is provided inside the transmission block 304. A powder nozzle 305 is fixedly connected to the surface of the transmission block 304 near the contact position between the monorail crane 200 and the I-shaped rail 100. A movable rod 306 is rotatably connected to the side of the carrier 301 near the transmission block 304. A U-shaped notch 307 is provided on the surface of the movable rod 306, and a trigger block 308 is provided on the side of the surface of the movable rod 306 away from the U-shaped notch 307. A telescopic rod 309 is fixedly connected to the gap between the transmission block 304 and the movable rod 306 inside the carrier 301.

[0022] During use, the cylinder 302 is fixedly connected to the surface of the carrier 301, and its output end is inside the carrier 301 and fixedly connected to the movable block 303. Figure 6As shown, the flow hole 1 of the movable block 303 is L-shaped. When the cylinder 302 drives the movable block 303 to contact the inclined block 401, the flow hole 1 connects the chamber inside the coordination mechanism 500 and the chamber inside the transmission block 304. However, when the movable block 303 tilts the inclined block 401 to the maximum stroke, the movable block 303 will again isolate the chamber connecting the coordination mechanism 500 and the transmission block 304. The powder nozzle 305 on the transmission block 304 is directed toward the wheels of the monorail crane 200 and the I-shaped rail 100. The powder is sprayed on the angled surface to ensure that the surface of the I-shaped rail 100 can be accurately powdered, further improving the safety of the monorail crane 200 when braking on a slope. Considering that there is a spray dust reduction device in the working environment and the working environment temperature is high, the powder nozzle 305 is used to spray to make the surface of the I-shaped rail 100 more uniform and form a thin layer of powder, which makes it less consumable and reduces the number of times powder is added to the inside of the coordination mechanism 500. The telescopic rod 309 installed inside the carrier 301, see Figure 4 As shown, the telescopic rod 309 pushes the movable rod 306 toward the inclined block 401 to ensure that the U-shaped notch 307 of the movable rod 306 is in contact with the inclined block 401. When the movable block 303 just contacts the inclined block 401, the trigger block 308 on the movable rod 306 does not contact the bottom surface of the I-shaped rail 100, that is, it is close to the ground surface. When the movable block 303 is driven by the cylinder 302 to reach the maximum stroke, the trigger block 308 contacts the bottom surface of the I-shaped rail 100, providing auxiliary positioning capability for the monorail crane 200, preventing the monorail crane 200 from sliding or sliding on the I-shaped rail 100 with a larger slope when the monorail crane 200 stops working to unload. The trigger block 308 cooperates with the carrier 301 to form a V-shaped angle, and the trigger block 308 rotates toward the cylinder 302 through the movable rod 306 to position the monorail crane 200.

[0023] When the movable rod 306 is in the initial state, the trigger block 308 does not contact the I-rail 100, and the trigger block 308 needs to be installed on the surface of the movable rod 306 according to actual conditions. When the movable rod 306 is working inside the carrier 301, the setting of the transmission block 304 does not affect the movable rod 306, leaving enough space. When the movable block 303 reaches the maximum stroke, the contact block 402 contacts the surface of the I-rail 100, and the trigger block 308 is against the bottom surface of the I-rail 100. When the movable block 303 is not at the maximum stroke, the contact block 402 on the inclined block 401 will contact the I-shaped right-angled working surface of the I-rail 100 earlier than the trigger block 308. The contact block 402 is made of flexible material. Only when the movable block 303 reaches the maximum stroke will the trigger block 308 contact the bottom surface of the I-rail 100 to form a V-shaped angle.

[0024] In the working state, the flow hole 1 opened in the movable block 303 and the flow hole 2 opened in the transmission block 304 are at the same horizontal plane and are internally connected to each other. In the initial state, the interior of the transmission block 304 is isolated as a closed chamber by the movable block 303.

[0025] A spring is provided inside the telescopic rod 309 , and the telescopic rod 309 abuts against the movable rod 306 in the working state.

[0026] A contact block 402 is provided on the surface of the inclined block 401. A triangular notch 403 is opened on the surface of the contact block 402, and the triangular notch 403 opens at a small angle toward the I-shaped rail 100. The side of the inclined block 401 close to the contact block 402 is fixedly connected to the inner wall of the carrier 301 through a tension component.

[0027] The tension assembly includes a directional block 410 and a tension spring 411 arranged on the surface of the directional block 410 , and an end of the tension spring 411 is fixedly connected to the inclined block 401 .

[0028] During use, the tension spring 411 is provided to prevent the contact block 402 of the inclined block 401 from being overweighted, which causes the contact block 402 to always fit with the I-shaped rail 100, thereby reducing the self-driving power of the monorail crane 200. The triangular notch 403 is provided to guide the powder sprayed from the surface of the I-shaped rail 100 by the coordination mechanism 500 to the outside of the I-shaped rail 100, thereby preventing the powder from agglomerating on the surface of the I-shaped rail 100 due to the high temperature and high humidity in the working environment, and preventing underground coal miners from Broken soil will also accumulate on the I-rail 100 at the top of the working surface. When the contact block 402 is in contact with the surface of the I-rail 100, the triangular notch 403 is first opened at a small angle to scrape off the debris on the I-rail 100, and at the same time, the debris is guided toward the large opening, that is, the outside of the I-rail 100, to further improve the safety of the monorail crane 200 during operation and prevent the wheels of the monorail crane 200 from contacting wet and agglomerated soil, which may cause the monorail crane 200 to slip during operation.

[0029] In the initial state of the contact block 402 , the tension of the tension spring 411 prevents the contact block 402 from contacting the I-shaped rail 100 .

[0030] The surface of the inclined block 401 away from the contact block 402 abuts against the U-shaped notch 307 defined in the movable rod 306 .

[0031] The coordination mechanism 500 includes a gas tank 501 arranged on the surface of the carrier 301. A one-way valve 502 is fixedly connected to one end of the gas tank 501, and a vent pipe is fixedly connected to the other end of the gas tank 501. Powder is arranged inside the gas tank 501.

[0032] The vent pipe is fixedly connected to the transmission block 304 , and in the initial state, the vent pipe isolates the chamber of the transmission block 304 through the movable block 303 .

[0033] During use, the vent pipe passes through the carrier 301 and is connected to the transmission block 304. The flow hole on the movable block 303 is an L-shaped part. The flow hole works through the movable block 303 to connect the vent pipe, the gas tank 501 and the transmission block 304. When the gas tank 501 is actually used, it may be necessary to place a desiccant or install an air dryer inside to make the moisture in the stored compressed air lower than the set value to prevent the humid air from causing the powder to stick to the vent pipe. Furthermore, a boosting module is installed inside the gas tank 501 to increase the pressure of the compressed air filled into the gas tank 501, thereby improving the gas storage capacity and reducing the frequency of inflation.

[0034] It should be noted that the one-way valve 502 is provided to facilitate the inflation into the gas tank 501. The gas tank 501 is used to store a certain amount of compressed air, and the compressed air comes from the compressed air pipe in the underground tunnel of the coal mine. Through the quick air pipe joint, the compressed air is filled into the gas tank 501 at a specific location such as the monorail crane maintenance yard, etc., and the air in the compressed air pipe in the underground tunnel is utilized. There is no need to buy compressed air, which further saves the use cost.

[0035] Working principle: According to Figure 1 As shown, the monorail crane 200 is installed on the surface of the I-shaped rail 100. This is a prior art. The monorail crane 200 then works on the surface of the I-shaped rail 100. When the monorail crane 200 is working normally, the cylinder 302 on the carrier 301 drives the movable block 303 to work. The movable block 303 intermittently uses the powder in the gas tank 501 through the transmission block 304 to spray from the powder nozzle 305 to dry the surface of the I-shaped rail 100 to prevent the monorail crane 200 from slipping during operation. At the same time, the inclined block 401 drives the contact block 402 to intermittently clean the excess debris or agglomerated powder on the surface of the I-shaped rail 100. Then, it is guided out from the triangular notch 403. When the monorail crane 200 brakes and stops on the slope section of the I-rail 100, the movable block 303 moves to its maximum stroke through the cylinder 302. At this time, the vent pipe of the gas storage tank 501 no longer transmits gas and powder to the inside of the transmission block 304 because the movable block 303 has reached its maximum stroke. The U-shaped notch 307 rotates the movable rod 306 through the tilt of the inclined block 401, and the trigger block 308 contacts the bottom surface of the I-rail 100, locking the monorail crane 200. At the same time, the contact block 402 on the other part of the inclined block 401 is in close contact with the surface of the I-rail 100, locking the monorail crane 200 in both directions.

[0036] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A monorail crane locomotive auxiliary device, characterized in that: include: I-shaped steel rails (100), and a monorail crane (200) arranged on the I-shaped steel rails (100), which is used for transporting equipment underground in a coal mine when in working condition; Two sets of safety mechanisms (300) are symmetrically arranged in the running direction of the monorail crane (200) and are used to assist the monorail crane (200) in braking when braking on a slope. The safety mechanism (300) includes a carrier (301) arranged on the surface of the monorail crane (200); A pressure mechanism (400) is provided inside each of the safety mechanisms (300), and the pressure mechanism (400) includes an inclined block (401) rotatably connected inside the carrier (301); The coordination mechanism (500) is arranged on the surface of each of the carriers (301).

2. The monorail crane locomotive auxiliary device according to claim 1, characterized in that: A cylinder (302) is provided on the surface of the carrier (301), and a movable block (303) is fixedly connected to the output end of the cylinder (302), and a circulation hole 1 is provided inside the movable block (303). A transmission block (304) is provided inside the carrier (301), and a circulation hole 2 is provided inside the transmission block (304). A powder spraying nozzle (305) is fixedly connected to the surface of the transmission block (304) near the contact position between the monorail crane (200) and the I-shaped rail (100). A movable rod (306) is rotatably connected to the side of the carrier (301) near the transmission block (304), and a U-shaped notch (307) is provided on the surface of the movable rod (306). A trigger block (308) is provided on the side of the surface of the movable rod (306) away from the U-shaped notch (307). A telescopic rod (309) is fixedly connected to the gap between the transmission block (304) and the movable rod (306) inside the carrier (301).

3. The monorail crane locomotive auxiliary device according to claim 2, characterized in that: In the working state, the first flow hole opened inside the movable block (303) and the second flow hole opened inside the transmission block (304) are located at the same horizontal plane, and are internally connected to each other. In the initial state, the interior of the transmission block (304) is isolated as a closed chamber by the movable block (303).

4. The monorail crane locomotive auxiliary device according to claim 3, characterized in that: A spring is provided inside the telescopic rod (309), and in the working state, the telescopic rod (309) abuts against the movable rod (306).

5. The monorail crane locomotive auxiliary device according to claim 4, characterized in that: A contact block (402) is provided on the surface of the inclined block (401), a triangular notch (403) is provided on the surface of the contact block (402), and the triangular notch (403) opens at a small angle toward the I-shaped rail (100), and a side of the surface of the inclined block (401) close to the contact block (402) is fixedly connected to the inner wall of the carrier (301) through a tension component.

6. The monorail crane locomotive auxiliary device according to claim 5, characterized in that: The tension assembly comprises a directional block (410) and a tension spring (411) arranged on the surface of the directional block (410), wherein an end of the tension spring (411) is fixedly connected to the inclined block (401).

7. The monorail crane locomotive auxiliary device according to claim 6, characterized in that: In the initial state of the contact block (402), the tension of the tension spring (411) causes the contact block (402) to not contact the I-shaped steel rail (100).

8. The monorail crane locomotive auxiliary device according to claim 7, characterized in that: The surface of the inclined block (401) away from the contact block (402) abuts against the U-shaped notch (307) formed on the movable rod (306).

9. The monorail crane locomotive auxiliary device according to claim 8, characterized in that: The coordination mechanism (500) comprises a gas storage tank (501) arranged on the surface of a carrier (301), a one-way valve (502) being fixedly connected to one end of the gas storage tank (501), a vent pipe being fixedly connected to the other end of the gas storage tank (501), and powder being arranged inside the gas storage tank (501).

10. The monorail crane locomotive auxiliary device according to claim 9, characterized in that: The vent pipe is fixedly connected to the transmission block (304), and in an initial state, the vent pipe isolates the chamber of the transmission block (304) through the movable block (303).

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