A coal mine underground roadway monorail crane
By introducing a combination of rotation, friction, and limit mechanisms into the monorail crane in underground coal mine roadways, the problem of support frame swaying caused by pulley inertia force was solved, achieving stable operation and improved safety of the monorail crane.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TAIYUAN MINING MASCH ELECTRICAL TECH CO LTD
- Filing Date
- 2022-10-12
- Publication Date
- 2026-04-17
AI Technical Summary
When existing monorail cranes in underground coal mine roadways move forward, the pulleys are prone to generating inertial forces, which can cause the support frame to tilt and sway, the braking equipment to be pulled, and the heavy load to sway significantly.
The design employs a combination of a rotating mechanism, a friction mechanism, and a limiting mechanism. The sliding mechanism is driven by an electric motor to slide within the monorail, the rotating mechanism presses between the force plates, the telescopic mechanism extends and retracts, and the friction mechanism and the limiting mechanism block the monorail to prevent the force plates from shaking.
It effectively prevents the load-bearing plate from swaying left and right and lateral swaying, ensuring the stability and safety of the monorail, reducing the pulling force of inertia on the braking equipment, and improving the smoothness and safety of operation.
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Figure CN115744646B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of monorail equipment technology, and more specifically, to a monorail hoist for underground coal mine roadways. Background Technology
[0002] A monorail is a highly mobile, fast-running, high-capacity, and safe auxiliary transportation device, mainly used for installation and retraction in coal mine fully mechanized mining faces. It is electrically operated by batteries, features low noise, and has strong climbing ability. It can transport large equipment such as hydraulic supports as a whole. However, when moving forward, the I-shaped monorail is fixed by pulleys on both sides. Gravity generates inertial force when moving, which can easily cause the support frame to tilt. As a result, the pulleys cannot achieve the blocking effect and are prone to shaking. In addition, the pulleys have a separate braking device. When the pulley stops, the inertial force generated by the pulley will pull on the braking device, which can easily cause the heavy load to shake significantly. Summary of the Invention
[0003] The technical solution adopted by this invention to achieve its technical objective is as follows: a monorail hoist for underground coal mine roadways, the structure of which includes a monorail, a sliding mechanism, a load-bearing device, an electric motor, and a fixed rod. The monorail is embedded in the lower end of the fixed rod, the load-bearing device is installed inside the monorail, the electric motor is embedded in the right end of the sliding mechanism, the sliding mechanism is installed inside the monorail, the sliding mechanism is provided with a rotating mechanism, a turning mechanism, a connecting rod, and a force-bearing plate, the connecting rod is installed in the lower end of the force-bearing plate, the rotating mechanism is embedded in the inner side of the force-bearing plate, the rotating mechanism slides in cooperation with the inner side of the force-bearing plate, and the rotating mechanism slides in cooperation with the left and right sides of the monorail. There are two rotating mechanisms, symmetrically distributed on the left and right.
[0004] As a further improvement of the present invention, the rotating mechanism is provided with a support rod, a friction mechanism, a telescopic mechanism, a rotating shaft, and a limiting rod. The telescopic mechanism is embedded in the upper end of the support rod, the support rod is installed in the middle of the rotating shaft, the limiting rod is embedded in the upper end of the support rod, the telescopic mechanism is installed in the middle of the friction mechanism, the support rod is embedded in the inner side of the force plate, and there are two rotating shafts, which are symmetrically distributed on the left and right sides with the telescopic mechanism as the center.
[0005] As a further improvement of the present invention, the friction mechanism is provided with a rotating plate, a blocking ring, and a fixed shaft. The rotating plate is embedded on the outside of the fixed shaft, the blocking ring is installed on the outside of the rotating plate, and the telescopic mechanism is installed in the middle of the fixed shaft. The blocking ring is made of a grinding wheel material with high friction, and the rotating plate is made of rubber material with high elasticity.
[0006] As a further improvement of the present invention, the telescopic mechanism includes a movable plate, a first spring rod, an arc-shaped block, a force-bearing block, and a telescopic device. The arc-shaped block is embedded inside the support rod, the force-bearing block is installed on the upper end of the telescopic device, the telescopic device is embedded inside the movable plate, the arc-shaped block is installed at the lower end of the first spring rod, the force-bearing block is located at the lower end of the arc-shaped block, the first spring rod is installed in the middle of the friction mechanism, and the telescopic device is a small pneumatic device with an electronic control system at its lower end.
[0007] As a further improvement of the present invention, the rotating mechanism is provided with a force-bearing shaft, a second spring rod, and a limiting mechanism. The second spring rod is embedded on the outside of the force-bearing shaft and installed on the inside of the limiting mechanism. The limiting mechanism is slidably engaged with the inside of the force-bearing plate. There are four second spring rods, which are evenly distributed in a ring around the force-bearing shaft.
[0008] As a further improvement of the present invention, the limiting mechanism includes a sponge strip, a movable ring, and a limiting plate. The sponge strip is embedded in the inner side of the movable ring, the limiting plate is engaged with the outer side of the movable ring, the second spring rod is installed in the inner side of the movable ring, and the limiting plate is made of rubber, which has the characteristic of high friction.
[0009] Beneficial effects
[0010] 1. In this invention, the control electric motor generates electrical drive, causing the sliding mechanism and the load-bearing device to slide in the monorail, thereby causing the rotating mechanism to slide within the monorail. This causes the rotating mechanism to press between the monorail and the force plate, preventing the force plate from swaying left and right. When the rotating mechanism slides, the rotating shaft rotates and slides within the monorail, and the telescopic mechanism extends and retracts. This controls the small pneumatic device in the telescopic device to push the force block upward, causing the force block to drive the arc-shaped block to press against the first spring rod. Subsequently, the friction mechanism moves upward, causing the friction mechanism to rub and block inside the monorail. The friction mechanism rubs and blocks the monorail, thereby causing the blocking ring to rub and block inside the monorail. Through the pressing of the rotating plate, the rotating shaft can be slowly stopped moving. At the same time, through the extension and retraction of the limit rod, the rotating mechanism stops moving within the monorail.
[0011] 2. In this invention, the rotating mechanism slides on the monorail, and the rotating mechanism blocks the lower end of the monorail from the force plate to prevent the force plate from wobbling due to the gap between the force plate and the monorail. Thus, after the limiting mechanism is subjected to force, it squeezes the second spring rod, causing the limiting mechanism to rotate through the force shaft. At the same time, under the compression of the second spring rod, it blocks the monorail and the force plate to prevent the force plate from shaking. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of a monorail hoist in an underground coal mine roadway according to the present invention.
[0013] Figure 2This is a side view of a sliding mechanism according to the present invention.
[0014] Figure 3 This is a schematic diagram of the planar structure of a rotating mechanism according to the present invention.
[0015] Figure 4 This is a side view of a friction mechanism according to the present invention.
[0016] Figure 5 This is a side view of a telescopic mechanism according to the present invention.
[0017] Figure 6 This is a side view of a rotating mechanism according to the present invention.
[0018] Figure 7 This is a three-dimensional structural diagram of a limiting mechanism according to the present invention.
[0019] In the diagram: Single rail-1, sliding mechanism-2, load-bearing device-3, electric motor-4, fixed rod-5, rotating mechanism-21, rotating mechanism-22, connecting rod-23, force plate-24, support rod-e1, friction mechanism-e2, telescopic mechanism-e3, rotating shaft-e4, limiting rod-e5, rotating plate-e21, blocking ring-e22, fixed shaft-e23, movable plate-t1, first spring rod-t2, arc block-t3, force block-t4, telescopic device-t5, force shaft-w1, second spring rod-w2, limiting mechanism-w3, sponge strip-w31, movable ring-w32, limiting plate-w33. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings:
[0021] Example 1:
[0022] As attached Figure 1 To be continued Figure 5 As shown:
[0023] This invention relates to a monorail hoist for underground coal mine roadways. Its structure includes a monorail 1, a sliding mechanism 2, a load-bearing device 3, an electric motor 4, and a fixed rod 5. The monorail 1 is embedded in the lower end of the fixed rod 5. The load-bearing device 3 is installed inside the monorail 1. The electric motor 4 is embedded in the right end of the sliding mechanism 2. The sliding mechanism 2 is installed inside the monorail 1. The sliding mechanism 2 includes a rotating mechanism 21, a rotating mechanism 22, a connecting rod 23, and a force-bearing plate 24. The connecting rod 23 is installed in the lower end of the force-bearing plate 24. Mechanism 22 is embedded inside the force plate 24. The rotating mechanism 21 is slidably engaged with the inside of the force plate 24. The rotating mechanism 22 is slidably engaged with the left and right sides of the monorail 1. There are two rotating mechanisms 21, which are symmetrically distributed on the left and right sides, thereby controlling the electric motor 4 to generate electric drive, so that the sliding mechanism 2 and the load-bearing device 3 slide in the monorail 1, so that the rotating mechanism 22 slides in the monorail 1, and the rotating mechanism 21 is squeezed between the monorail 1 and the force plate 24 to prevent the force plate 24 from swaying left and right.
[0024] The rotating mechanism 22 includes a support rod e1, a friction mechanism e2, a telescopic mechanism e3, a rotating shaft e4, and a limiting rod e5. The telescopic mechanism e3 is embedded in the upper end of the support rod e1, the support rod e1 is installed in the middle of the rotating shaft e4, the limiting rod e5 is embedded in the upper end of the support rod e1, the telescopic mechanism e3 is installed in the middle of the friction mechanism e2, and the support rod e1 is embedded in the inner side of the force-bearing plate 24. There are two rotating shafts e4, symmetrically distributed on the left and right sides with the telescopic mechanism e3 as the center. The rotating shafts e4 rotate and slide within the single rail 1. Under the extension and retraction of the telescopic mechanism e3, the friction mechanism e2 provides frictional resistance to the single rail 1. At the same time, the extension and retraction of the limiting rod e5 stops the rotating mechanism 22 from moving within the single rail 1.
[0025] The friction mechanism e2 includes a rotating plate e21, a blocking ring e22, and a fixed shaft e23. The rotating plate e21 is embedded on the outside of the fixed shaft e23, and the blocking ring e22 is installed on the outside of the rotating plate e21. The telescopic mechanism e3 is installed in the middle of the fixed shaft e23. The blocking ring e22 is made of a grinding wheel material with high friction, and the rotating plate e21 is made of rubber material with high elasticity. Thus, the blocking ring e22 performs frictional blocking within the single track 1. Through the compression of the rotating plate e21, the rotating shaft e4 can be slowly stopped from moving.
[0026] The telescopic mechanism e3 includes a movable plate t1, a first spring rod t2, an arc-shaped block t3, a force-bearing block t4, and a telescopic device t5. The arc-shaped block t3 is embedded inside the support rod e1. The force-bearing block t4 is installed on the upper end of the telescopic device t5, which is embedded inside the movable plate t1. The arc-shaped block t3 is installed at the lower end of the first spring rod t2. The force-bearing block t4 is located at the lower end of the arc-shaped block t3. The first spring rod t2 is installed in the middle of the friction mechanism e2. The telescopic device t5 is a small pneumatic device with an electronic control system at its lower end. This system controls the small pneumatic device in the telescopic device t5 to push the force-bearing block t4 upward, causing the force-bearing block t4 to drive the arc-shaped block t3 to squeeze the first spring rod t2. Consequently, the friction mechanism e2 moves upward, causing the friction mechanism e2 to rub and block inside the monorail 1.
[0027] The specific usage and function of this embodiment are as follows:
[0028] In this invention, the control motor 4 generates an electrical drive, causing the sliding mechanism 2 and the load-bearing device 3 to slide in the monorail 1. This causes the rotating mechanism 22 to slide within the monorail 1, and the rotating mechanism 21 to press between the monorail 1 and the force plate 24, preventing the force plate 24 from swaying left and right. While the rotating mechanism 22 slides, the rotating shaft e4 rotates and slides within the monorail 1, and the telescopic mechanism e3 extends and retracts. This controls the small pneumatic device in the telescopic device t5 to push the force block t4 upward, causing the force block t4 to drive the arc-shaped block t3 to press against the first spring rod t2. Subsequently, the friction mechanism e2 moves upward, causing the friction mechanism e2 to rub and block the monorail 1. The friction mechanism e2 rubs and blocks the monorail 1, thereby causing the blocking ring e22 to rub and block within the monorail 1. Through the pressing of the rotating plate e21, the rotating shaft e4 can slowly stop moving. At the same time, through the extension and retraction of the limiting rod e5, the rotating mechanism 22 stops moving within the monorail 1.
[0029] Example 2:
[0030] As attached Figure 6 To be continued Figure 7 As shown:
[0031] The rotating mechanism 21 includes a force-bearing shaft w1, a second spring rod w2, and a limiting mechanism w3. The second spring rod w2 is embedded on the outside of the force-bearing shaft w1 and installed on the inside of the limiting mechanism w3. The limiting mechanism w3 slides with the inside of the force plate 24. There are four second spring rods w2, which are evenly distributed in a ring around the force-bearing shaft w1. When the limiting mechanism w3 is subjected to force, it squeezes the second spring rods w2, causing the limiting mechanism w3 to rotate through the force-bearing shaft w1. At the same time, the squeezing of the second spring rods w2 blocks the single rail 1 and the force plate 24, preventing the force plate 24 from shaking.
[0032] The limiting mechanism w3 includes a sponge strip w31, a movable ring w32, and a limiting plate w33. The sponge strip w31 is embedded inside the movable ring w32, and the limiting plate w33 is engaged outside the movable ring w32. The second spring rod w2 is installed inside the movable ring w32. The limiting plate w33 is made of rubber and has the characteristic of high friction. As a result, the movable ring w32 is squeezed and rotated by force. The limiting plate w33 provides frictional resistance to the force plate 24, preventing the force plate 24 from swaying laterally and avoiding shaking.
[0033] The specific usage and function of this embodiment are as follows:
[0034] In this invention, the rotating mechanism 22 slides on the monorail 1, and the rotating mechanism 21 blocks the lower end of the monorail 1 and the force plate 24 to prevent the force plate 24 from wobbling due to the gap between it and the monorail 1. Thus, the limiting mechanism w3 is pressed by the second spring rod w2 after being subjected to force, causing the limiting mechanism w3 to rotate through the force shaft w1. At the same time, the second spring rod w2 blocks the monorail 1 and the force plate 24 under the pressure, preventing the force plate 24 from shaking.
[0035] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solutions described in this invention, or by designing similar technical solutions by those skilled in the art under the inspiration of the technical solutions described in this invention, falls within the protection scope of this invention.
Claims
1. A monorail hoist for underground roadways in coal mines, comprising a monorail (1), a sliding mechanism (2), a load-bearing device (3), an electric motor (4), and a fixed rod (5), wherein the monorail (1) is embedded in the lower end of the fixed rod (5), the load-bearing device (3) is installed inside the monorail (1), the electric motor (4) is embedded in the right end of the sliding mechanism (2), and the sliding mechanism (2) is installed inside the monorail (1), characterized in that: The sliding mechanism (2) includes a rotating mechanism (21), a rotating mechanism (22), a connecting rod (23), and a force-bearing plate (24). The connecting rod (23) is installed at the lower end of the force-bearing plate (24). The rotating mechanism (22) is embedded in the inner side of the force-bearing plate (24). The rotating mechanism (21) slides with the inner side of the force-bearing plate (24). The rotating mechanism (22) slides with the left and right sides of the monorail (1). The rotating mechanism (21) includes a force-bearing shaft (w1), a second spring rod (w2), and a limiting mechanism (w3). Two spring rods (w2) are fixed to the outside of the force-bearing shaft (w1). The second spring rod (w2) is installed inside the limiting mechanism (w3). The limiting mechanism (w3) is slidably engaged with the inside of the force-bearing plate (24). The limiting mechanism (w3) is provided with a sponge strip (w31), a movable ring (w32), and a limiting plate (w33). The sponge strip (w31) is fixed to the inside of the movable ring (w32). The limiting plate (w33) is engaged with the outside of the movable ring (w32). The second spring rod (w2) is installed inside the movable ring (w32).
2. A monorail hoist for underground coal mine roadways according to claim 1, characterized in that: The rotating mechanism (22) is provided with a support rod (e1), a friction mechanism (e2), a telescopic mechanism (e3), a rotating shaft (e4), and a limiting rod (e5). The telescopic mechanism (e3) is embedded in the upper end of the support rod (e1), the support rod (e1) is installed in the middle of the rotating shaft (e4), the limiting rod (e5) is embedded in the upper end of the support rod (e1), the telescopic mechanism (e3) is installed in the middle of the friction mechanism (e2), and the support rod (e1) is embedded in the inner side of the force plate (24).
3. A monorail hoist for underground coal mine roadways according to claim 2, characterized in that: The friction mechanism (e2) includes a rotating plate (e21), a blocking ring (e22), and a fixed shaft (e23). The rotating plate (e21) is embedded on the outside of the fixed shaft (e23), the blocking ring (e22) is installed on the outside of the rotating plate (e21), and the telescopic mechanism (e3) is installed in the middle of the fixed shaft (e23).
4. A monorail hoist for underground coal mine roadways according to claim 2, characterized in that: The telescopic mechanism (e3) includes a movable plate (t1), a first spring rod (t2), an arc-shaped block (t3), a force-bearing block (t4), and a telescopic device (t5). The arc-shaped block (t3) is embedded inside the support rod (e1), the force-bearing block (t4) is installed on the upper end of the telescopic device (t5), the telescopic device (t5) is embedded inside the movable plate (t1), the arc-shaped block (t3) is installed at the lower end of the first spring rod (t2), the force-bearing block (t4) is located at the lower end of the arc-shaped block (t3), and the first spring rod (t2) is installed in the middle of the friction mechanism (e2).
Citation Information
Patent Citations
Mining single-rail-crane brake device
CN203651804U
Drive device of monorail hoist, rail single body, and monorail hoist
WO2020042323A1