Coal mine elevator for coal mining

Abstract

The utility model relates to the field of coal mining, in particular to a coal mine elevator for coal mining. According to the coal mine elevator for coal mining, intermittent oil dripping lubrication can be conducted on a winding drum during use, meanwhile, flow is controlled to conduct oil dripping lubrication on a sliding wheel and a steel wire rope, abrasion of parts is prevented, the service life of equipment is prolonged, the maintenance cost is reduced, and use is convenient. A coal mine hoister for coal mining comprises a direct current motor, a speed reducer and the like, and an output shaft of the direct current motor is connected with the speed reducer. Intermittent oil dripping is carried out on the winding drum through movement or reset of the oil dripping head, meanwhile, quantity-controlled dripping of lubricating oil in the oil tank is carried out, oil dripping lubrication is carried out on a sliding wheel and a steel wire rope, and therefore the sliding wheel and the steel wire rope can be lubricated through oil dripping while intermittent oil dripping lubrication is carried out on the winding drum in the using process, and the service life of the sliding wheel and the steel wire rope is prolonged. The service life of equipment is prolonged, the maintenance cost is reduced, and the use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of coal mining, and in particular to a coal mine hoist used in coal mining. Background Technology

[0002] Coal mining refers to the process of extracting coal resources from underground or the surface. It is an important part of the energy industry. As an important fossil fuel, coal is widely used in power generation, metallurgy, chemical industry and other fields. Coal mine hoists are important mechanical equipment used for lifting personnel, materials and coal in vertical or inclined shafts during coal mining. They play a vital role in coal mine production, ensuring the safe passage of logistics and personnel inside and outside the mine.

[0003] Existing coal mine hoists typically use the rotation of a drum to wind or unwind the wire rope, thereby controlling the lifting and lowering of the skip to transport coal. However, current coal mine hoists lack automatic lubrication, and during long-term use, components are prone to wear and tear, leading to a shortened lifespan, increased maintenance costs, and inconvenience in use.

[0004] Therefore, it is necessary to design a coal mine hoist that can intermittently drip oil to lubricate the drum while controlling the flow rate to drip oil to lubricate the sliding wheel and wire rope, prevent component wear, extend equipment service life, reduce maintenance costs, and be easy to use. Utility Model Content

[0005] To overcome the shortcomings of current coal mine hoists, which lack automatic drip lubrication and whose components are prone to wear and tear during long-term use, leading to shortened equipment lifespan, increased maintenance costs, and inconvenience, this utility model provides a coal mine hoist that can intermittently drip lubricate the drum while controlling the flow rate to drip lubricate the sliding wheel and wire rope, preventing component wear, extending equipment lifespan, reducing maintenance costs, and offering convenient operation.

[0006] The technical implementation scheme of this utility model is as follows: A coal mine hoist for coal mining includes a DC motor, a reducer, a support base, bearings, a hoist body, brakes, a protective frame, a sliding wheel, an oil dripping assembly, and an adjustment assembly. The reducer is connected to the output shaft of the DC motor. There are two support bases, left and right, placed on the ground. The support bases are both located on the left side of the DC motor. Bearings are rotatably connected to the upper part of each support base. A drum is provided between the bearings and connected to the reducer. Steel wire ropes are wound around the left and right sides of the drum. The hoist body is rotatably connected to the outer left side of the drum. Two brakes are connected to the front and rear parts of the hoist body. A protective frame is connected between the front brakes. The support frame is placed on the ground and located to the left rear side of the DC motor. Sliding wheels are rotatably connected to the left and right sides of the support frame. The tail ends of the steel wire ropes are wrapped around the sliding wheels on the same side. An oil dripping assembly for dripping lubricating oil is provided on the right support base. An adjustment assembly for adjusting the amount of oil dripping is provided on the upper right side of the support frame.

[0007] More preferably, the support frame is A-shaped.

[0008] More preferably, the oil dripping assembly includes an oil box, a telescopic spring, and an oil dripping head. The oil box is connected to the upper side of the support base on the right side, and oil dripping heads are slidably connected to both the left and right sides of the oil box. Each oil dripping head is connected to the oil box by a telescopic spring.

[0009] More preferably, the regulating assembly includes an oil tank, an oil pump, and a pulse regulating valve. The oil tank is connected to the upper right side of the support frame, the oil pump is connected to the upper right side of the support frame, and the pulse regulating valve is connected to the oil pump.

[0010] More preferably, it also includes a motor feedback tachogenerator, with the motor feedback tachogenerator connected to the right side of the DC motor.

[0011] More preferably, it also includes a spindle speed generator, with the spindle speed generator connected to the left side of the drum.

[0012] The beneficial effects of this utility model are: This utility model intermittently drips oil onto the drum by moving or resetting the oil dripping head, and at the same time controls the amount of lubricating oil dripped from the oil tank, thereby lubricating the sliding wheel and wire rope. Thus, it can intermittently lubricate the drum while controlling the flow rate to lubricate the sliding wheel and wire rope during use, preventing component wear, extending the service life of the equipment, reducing maintenance costs, and making it convenient to use. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional cross-sectional view of the oil dripping component of this utility model.

[0015] Figure 3 This is a three-dimensional cross-sectional view of the hoist body and brake components of this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the adjustment component of this utility model.

[0017] The meanings of the labels in the attached diagram are as follows: 1. DC motor, 2. Reducer, 3. Motor feedback tachogenerator, 4. Support base, 5. Oil box, 6. Telescopic spring, 7. Oil drip head, 8. Bearing, 9. Hoist body, 10. Main shaft tachogenerator, 11. Brake, 12. Protective frame, 13. Support frame, 14. Pulley, 15. Oil tank, 16. Oil pump, 17. Pulse regulating valve. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] A type of coal mine operation uses a coal mine hoist, such as Figures 1-4 As shown, the system includes a DC motor 1, a reducer 2, a motor feedback tachogenerator 3, a support base 4, an oil box 5, a telescopic spring 6, an oil drip head 7, a bearing 8, a hoist body 9, a main shaft tachogenerator 10, a brake 11, a protective frame 12, a support frame 13, a sliding wheel 14, an oil tank 15, an oil pump 16, and a pulse regulating valve 17. The reducer 2 is connected to the output shaft of the DC motor 1. The motor feedback tachogenerator 3 is connected to the right side of the DC motor 1 for measuring its rotational speed. There are two support bases 4, left and right, placed on the ground. Both support bases 4 are located to the left of the DC motor 1. The oil box 5 is connected to the upper side of the right support base 4. Oil drip heads 7 are slidably connected to both sides of the oil box 5, and telescopic springs 6 connect the oil drip heads 7 to the oil box 5. The upper part is rotatably connected to bearings 8, and a drum is provided between the bearings 8. The drum is connected to the reducer 2. Steel wire ropes are wound on both the left and right sides of the drum. The hoist body 9 is rotatably connected to the outer left side of the drum. The hoist body 9 is connected to two brakes 11 on both the front and rear sides. The main shaft tachometer generator 10 is connected to the left side of the drum to facilitate speed measurement. A protective frame 12 is connected between the brakes 11 at the front. The support frame 13 is placed on the ground and is located on the left rear side of the DC motor 1. The support frame 13 is A-shaped. The left and right sides of the support frame 13 are rotatably connected to sliding wheels 14. The tail ends of the steel wire ropes are wrapped around the sliding wheels 14 on the same side. An oil tank 15 is connected to the upper right side of the support frame 13. An oil pump 16 is connected to the upper right side of the support frame 13. A pulse regulating valve 17 is connected to the oil pump 16.

[0020] When a coal mine hoist is needed for coal mining, this device can be used to bring the DC motor 1, reducer 2, protective frame 12, and support frame 13 into contact with the ground. The support frame 13 is A-shaped and connected to the skip via a wire rope. The DC motor 1 is then started, and the reducer 2 reduces its speed and increases its torque, causing the drum 9 on the hoist body to rotate. This causes the bearing 8 to rotate along the support base 4, thereby winding or unwinding the wire rope, which in turn moves the skip up and down. The sliding wheel 14 rotates along the support frame 13, thus raising or lowering the skip or cage, allowing coal to be placed in the skip for transport. During transport, the brake 11 ensures stability during hoisting and allows for rapid stopping in emergencies. The speed of the DC motor 1 is measured by the motor feedback tachogenerator 3, and the speed of the drum is measured by the main shaft tachogenerator 10. The protective frame 12 provides protection. During use, when the drum rotates, it also drives the protrusions on the drum to rotate and squeeze the oil drip head 7, causing the oil drip head 7 to move. The telescopic spring 6 is squeezed, causing the lubricating oil in the oil drip head 7 and the oil box 5 to drip. When the protrusion disengages from the oil drip head 7, the telescopic spring 6 rebounds, and the oil drip head 7 moves back to its original position, thus intermittently dripping oil onto the drum. At the same time, the oil pump 16 and the pulse regulating valve 17 are started, causing the lubricating oil in the oil tank 15 to drip out. The flow rate of the lubricating oil is adjusted by controlling the opening and closing time ratio of the pulse regulating valve 17, thereby dripping oil lubrication onto the sliding wheel 14 and the wire rope. This allows for intermittent dripping oil lubrication of the drum while controlling the flow rate to drip oil lubricate the sliding wheel 14 and the wire rope, preventing component wear, extending the service life of the equipment, reducing maintenance costs, and making it easy to use. After transportation, the oil pump 16 and the DC motor 1 can be turned off.

[0021] Although this disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made to this disclosure without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of this disclosure should not be limited to the above embodiments, but should be defined not only by the appended claims, but also by their equivalents.

Claims

1. A coal mine hoist used in coal mining, characterized by: The system includes a DC motor (1), a reducer (2), a support base (4), bearings (8), a hoist body (9), a brake (11), a protective frame (12), a support frame (13), a pulley (14), an oil dripping assembly, and an adjusting assembly. The reducer (2) is connected to the output shaft of the DC motor (1). There are two support bases (4), one on the left and one on the right. The support bases (4) are placed on the ground and are located on the left side of the DC motor (1). The upper part of each support base (4) is rotatably connected to a bearing (8). A drum is provided between the bearings (8). The drum is connected to the reducer (2). Steel wire is wound around both the left and right sides of the drum. The rope is rotatably connected to the hoist body (9) on the outer left side of the drum. The hoist body (9) is connected to two brakes (11) on both the front and rear sides. A protective frame (12) is connected between the brakes (11) on the front side. The support frame (13) is placed on the ground and is located on the left rear side of the DC motor (1). The support frame (13) is rotatably connected to the pulleys (14) on both the left and right sides. The tail end of the wire rope passes around the pulleys (14) on the same side. The support seat (4) on the right side is equipped with an oil dripping component for dripping lubricating oil. The upper right side of the support frame (13) is equipped with an adjustment component for adjusting the amount of oil dripping.

2. A coal mine hoist as described in claim 1, characterized in that: The support frame (13) is A-shaped.

3. A coal mine hoist according to claim 2, characterized in that: The oil dripping assembly includes an oil box (5), a telescopic spring (6), and an oil dripping head (7). The oil box (5) is connected to the upper side of the support base (4) on the right side. The oil box (5) is slidably connected to the oil dripping head (7) on both the left and right sides. The oil dripping head (7) is connected to the oil box (5) by a telescopic spring (6).

4. A coal mine hoist according to claim 3, characterized in that: The regulating assembly includes an oil tank (15), an oil pump (16), and a pulse regulating valve (17). The oil tank (15) is connected to the upper right side of the support frame (13), the oil pump (16) is connected to the upper right side of the support frame (13), and the pulse regulating valve (17) is connected to the oil pump (16).

5. A coal mine hoist according to claim 4, characterized in that: It also includes a motor feedback tachogenerator (3), and the DC motor (1) is connected to the right side of the motor feedback tachogenerator (3).

6. A coal mine hoist according to claim 5, characterized in that: It also includes a spindle tachogenerator (10), which is connected to the left side of the drum.

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