A mine car of a novel automatic coupling device for underground track transportation of coal mines

Abstract

The utility model discloses a novel mine car of coal mine underground track transportation automatic hook device belongs to the mine machinery technical field, including the compartment, the chassis is installed under the compartment, the chassis bottom is installed with the wheel of removal, and the one side of chassis bottom is installed with automatic hook device.

Description

Technical Field

[0001] This utility model relates to the field of mining machinery technology, specifically to a new type of mine car with an automatic hook-up device for underground rail transport in coal mines. Background Technology

[0002] Transportation is an extremely important task in underground coal mine production. Transportation equipment and facilities mainly include belt conveyors, monorails, flatbed cars, material cars, and mine cars, among which mine cars are mainly used to transport materials, gangue, and other resources.

[0003] Underground transportation conditions include horizontal and inclined roadway transportation. In horizontal roadway transportation, the original small chain connections on the mine cars (which did not meet safety standards and are now discontinued) have been replaced with underground-specific three-ring chains and pin connections. In inclined roadway transportation, the three-ring chains can handle pulling at multiple angles, but cannot be pushed. The pin-connected mine cars can only adapt to either horizontal or vertical tilting. Furthermore, connecting and replacing the three-ring chains or pins requires significant manual labor, with a large number of replacements per shift, resulting in high labor intensity for workers. Head injuries from bumping or crushing frequently occur when attaching or detaching the chains.

[0004] There is an urgent need for a mine car that is suitable for both horizontal and inclined tunnels. Utility Model Content

[0005] The present invention aims to solve the technical problems mentioned in the background section above, and provides a new type of mine car with an automatic hooking device for underground rail transport in coal mines. The automatic hooking device enables the front and rear mine cars to be automatically connected and is suitable for the complex transport environment of inclined tunnels.

[0006] According to the content of this utility model, the technical solution provided by this utility model is: a mine car with a new type of automatic hook device for underground rail transport in coal mines, including a car body, a chassis installed under the car body, movable wheels installed at the bottom of the chassis, and an automatic hook device installed on one side of the bottom of the chassis.

[0007] The automatic hook device includes a hook head device, one end of which is rotatably connected to a universal head housing. The universal head pull rod of the universal head housing passes through the hook head buffer housing. The two sides of the hook head buffer housing are provided with ear plates that are fixedly connected to the chassis. The end of the universal head pull rod passes through the hook head buffer housing, is fitted with a pull rod spring, and is then connected to a locking nut.

[0008] In some embodiments, the universal head housing is U-shaped, the head of the universal head lever is spherical and located inside the universal head housing, the end of the universal head lever passes through the lower end of the U-shape of the universal head housing, and the universal head lever can only be taken out from the upper opening of the U-shape of the universal head housing.

[0009] In some embodiments, the side of the universal head housing is provided with a flange, and a plurality of positioning springs are fixedly connected to the flange near the front baffle of the hook head buffer housing. The other end of the positioning spring passes through the blind hole of the front baffle and enters the hook head buffer housing.

[0010] In some embodiments, the contact area between the ball joint of the universal joint rod and the universal joint housing is coated with grease.

[0011] In some embodiments, a spacer sleeve is fitted on the universal head tie rod between the front baffle of the universal head housing and the hook head buffer housing to prevent the impact force of the hook head device from acting directly on the positioning spring.

[0012] In some embodiments, a front baffle that can slide back and forth is provided on one side of the hook head buffer box near the universal head box, and a rear baffle that slides back and forth is abutted on the other side of the front baffle by a large anti-collision spring. A cover plate is provided on the hook head buffer box to prevent the front and rear baffles from detaching from the hook head buffer box when they move. The cover plate is fixed on the hook head buffer box.

[0013] In some embodiments, a pull rod spring is fitted on the universal head pull rod between the hook head buffer box and the locking nut, and a washer is fitted between the locking nut and the pull rod spring.

[0014] In some embodiments, the hook head device includes a hook tongue, an anti-slip block, and a hook lock iron. When the front and rear hook head devices are combined, the two hook tongues abut against each other and rotate until the hook lock iron limits the rotation mechanism of the hook tongues. The anti-slip block is fixedly connected to the upper end face of the hook head device and is used to prevent the two hook tongues from sliding out up or down.

[0015] In some embodiments, the lower plane of the hook tongue of the hook device is higher than the lower plane of the hook buffer box, raising the height of the hook device from the ground and preventing the hook device from hitting the sleeper or ballast at the downslope point.

[0016] The advantages of this utility model compared with the prior art are as follows: 1. The hook device enables the front and rear mine cars to be automatically connected and locked; 2. The universal joint housing, universal joint rod, and rod spring facilitate the mine car's passage through sharp bends and steep gradient points, reducing derailment; 3. The hook buffer housing provides a buffering effect when the hook device impacts, resulting in more even force distribution, increasing the success rate of connection, and protecting the positioning spring from strong impacts; 4. The lower plane of the hook tongue of the hook device is higher than the lower plane of the hook buffer housing, raising the height of the hook device from the ground, which is more conducive to the mine car passing through the gradient points of the track.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a mine car for a novel automatic hook-up device for underground rail transport in coal mines, according to an embodiment of this utility model.

[0019] Figure 2 for Figure 1 A schematic diagram of the automatic hook device shown;

[0020] Figure 3 for Figure 2 The schematic diagram of AA section shown;

[0021] In the attached diagram: 1. Hook head buffer box; 2. Hook tongue; 3. Pin; 4. Anti-slip block; 5. Hook head device; 6. Hook lock iron; 7. Universal head box; 8. Positioning spring; 9. Front baffle; 10. Anti-collision large spring; 11. Spacer sleeve; 12. Rear baffle; 13. Pull rod spring; 14. Washer; 15. Locking nut; 16. Universal head pull rod; 17. Carriage; 18. Chassis; 19. Wheel; 20. Automatic hook device; 21. Cover plate. Detailed Implementation

[0022] The present invention will now be described in further detail.

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0024] like Figure 1 As shown, a mine car with a new type of automatic hook-up device for underground rail transport in coal mines has a chassis 18 installed under the car body 17. The bottom of the chassis 18 is equipped with wheels 19 for movement. Front and rear automatic hook-up devices 20 are installed on both sides of the bottom of the chassis 18. The front automatic hook-up device 20 and the rear automatic hook-up device 20 are respectively installed at both ends of the center line of the chassis 18.

[0025] Combination Figure 2 , Figure 3 As shown, the automatic hooking device 20 includes a hook head device 5. The hook tongue 2 and hook locking iron 6 of the hook head device 5 are based on the principle and shape structure of the Zhan-type coupler (Zheng's coupler). When the front and rear hook head devices 5 are combined, the two hook tongues 2 abut against each other and rotate inward until the hook locking iron 6 limits the rotation mechanism of the hook tongue 2. At this time, the hook tongue 2 of the other mine car smoothly enters the hook head device 5, and the hook tongues 2 of the two cars are locked together. The hook locking iron 6 locks and limits the hook tongue 2, preventing the hook tongue 2 from opening outward. This completes the automatic hooking and locking process. After the hook locking iron 6 is pulled out, the limitation of the hook tongues 2 of the two cars is removed, and the automatic hooking devices 20 of the front and rear cars can be separated.

[0026] The difference lies in the anti-slip block 4, which is welded to the upper end face of the hook device 5. The effective width of the inner side of the anti-slip block 4 is slightly greater than half the width of the hook tongue 2. When encountering obstacles or passing through the vertical slope point, the anti-slip block 4 can limit the movement of the hook tongue 2 on the vertical plane and keep it from disengaging.

[0027] Furthermore, the universal joint housing 7 is U-shaped, and the head of the universal joint rod 16 is spherical and located inside the universal joint housing 7. The end of the universal joint rod 16 passes through the lower end of the U-shape of the universal joint housing 7, and the universal joint rod 16 can only be taken out from the upper opening of the U-shape of the universal joint housing 7. The head of the universal joint rod 16 is installed inside the universal joint housing 7 to enable the vehicle to turn and pass through the uphill and downhill slope points.

[0028] Specifically, the right end of the hook device 5 is rotatably connected to a universal joint housing 7. The inner wall of the universal joint housing 7 is horizontally U-shaped. The head of the universal joint rod 16 is spherically located inside the universal joint housing 7. The contact area between the ball head of the universal joint rod 16 and the universal joint housing 7 is coated with grease. The end of the universal joint rod 16 passes through the lower end of the U-shape of the universal joint housing 7, and the universal joint rod 16 can only be removed from the upper opening of the U-shape of the universal joint housing 7 (e.g., Figure 3 (As shown).

[0029] The right end of the universal head pull rod 16 of the universal head housing 7 passes through the hook head buffer housing 1. The hook head buffer housing 1 has ear plates on both sides that are fixedly connected to the chassis 18. The ear plates have multiple through holes for bolt connection with the chassis 18. A spacer sleeve 11 is fitted on the universal head pull rod 16 between the universal head housing 7 and the front baffle 9 of the hook head buffer housing 1.

[0030] The end of the universal joint pull rod 16 passes through the hook head buffer housing 1 and connects to the locking nut 15. A pull rod spring 13 is fitted on the universal joint pull rod 16 between the hook head buffer housing 1 and the locking nut 15. When the pull rod spring 13 is compressed, the hook device extends. A washer 14 is fitted between the locking nut 15 and the pull rod spring 13. Removing the locking nut 15 allows the hook head buffer housing 1 and the universal joint housing 7 to be separated.

[0031] The universal joint housing 7 has a flange on its side. Multiple positioning springs 8 are fixedly connected to the flange near the hook head buffer housing 1. The multiple positioning springs 8 are installed at the four corners around the universal joint housing 7, and the lower end of the positioning springs 8 abuts against the front baffle 9 of the hook head buffer housing 1. The four corner positioning springs support and position the hook head device 5, preventing the hook head device 5 from swinging or rotating arbitrarily.

[0032] The front baffle 9 and the rear baffle 12 are installed inside the hook head buffer box 1 and can slide back and forth relative to the hook head buffer box 1. Three anti-collision large springs 10 are installed on the other side of the front baffle 9. The anti-collision large springs 10 abut against the rear baffle 12. The rear baffle 12 is installed inside the hook head buffer box 1. The middle anti-collision large spring 10 is fitted on the universal head pull rod 16, and the two on the sides are located on both sides of the universal head pull rod 16. When the hook head device 5 is docked and impacted, it can play a buffering role and the force is more evenly distributed.

[0033] The hook head buffer box 1 is provided with a cover plate 21. The cover plate 21 is used to prevent the front baffle 9 and the rear baffle 12 from sliding off the hook head buffer box 1. The cover plate is fixed on the hook head buffer box.

[0034] Furthermore, the lower plane of the hook tongue 2 of the hook device 5 is higher than that of the hook buffer box 1, which raises the height of the hook device 5 from the ground, making it more convenient for the mine car to pass through the downslope point of the track.

[0035] When in use, after the hook device 5 is hit, the impact force is transmitted to the front baffle 9 through the spacer sleeve 11. The front baffle 9 transmits the force to the anti-collision large spring 10, which plays a buffering role and also protects the four corner positioning springs 8 from strong impact.

[0036] When passing the incline point, the pull rod spring 13 is compressed after being pulled by the hook device 5 of another car. The hook device 5 is stretched, increasing the distance between the two mine cars so that they can pass through the incline point smoothly.

[0037] The hook device 5 is rotatably connected to the universal head box 7. Under the action of the universal head pull rod 16 and the universal head box 7, it can swing up, down, left and right. In the curve, it can ensure that the adjacent mine cars in front and behind can pass smoothly. At the slope change point of the roadway, it can also ensure that the adjacent mine cars in front and behind can pass smoothly.

[0038] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A mine car with a novel automatic hook-up device for underground rail transport in coal mines, characterized in that, Includes a carriage (17), under which a chassis (18) is installed, and at the bottom of the chassis (18) are movable wheels (19), and on one side of the bottom of the chassis (18) is an automatic hook device (20). The automatic hook device (20) includes a hook head device (5), one end of which is rotatably connected to a universal head housing (7). The universal head pull rod (16) of the universal head housing (7) is provided through a hook head buffer housing (1). The two sides of the hook head buffer housing (1) are provided with ear plates that are fixedly connected to the chassis (18). The end of the universal head pull rod (16) passes through the hook head buffer housing (1), is fitted with a pull rod spring (13), and is then connected to a locking nut (15). The universal head housing (7) is U-shaped, and the head of the universal head rod (16) is spherical and located inside the universal head housing (7). The end of the universal head rod (16) passes through the lower end of the U-shape of the universal head housing (7), and the universal head rod (16) can only be taken out from the upper opening of the U-shape of the universal head housing (7). The head of the universal head rod (16) is installed inside the universal head housing (7) to enable the vehicle to turn and pass through the uphill and downhill slope points. A pull rod spring (13) is fitted on the universal head pull rod (16) between the hook head buffer box (1) and the locking nut (15). When the hook head device (5) is subjected to tension, the pull rod spring (13) is compressed, the hook head device (5) is extended, the distance between vehicles is increased, and the two vehicles pass through the slope change point safely. A washer (14) is fitted between the locking nut (15) and the pull rod spring (13).

2. The mine car of the novel automatic hook-up device for underground rail transport in coal mines according to claim 1, characterized in that: The universal head housing (7) has a flange on its side. A plurality of positioning springs (8) are fixedly connected to the side of the flange near the hook head buffer housing (1). The lower end of the positioning springs (8) abuts against the hook head buffer housing (1).

3. The mine car of the novel automatic hook-up device for underground rail transport in coal mines according to claim 1, characterized in that: The ball joint of the universal joint rod (16) is coated with grease at the contact point between the ball joint and the universal joint housing (7).

4. The mine car of the novel automatic hook-up device for underground rail transport in coal mines according to claim 2, characterized in that: A spacer sleeve (11) is fitted on the universal head pull rod (16) between the universal head housing (7) and the hook head buffer housing (1) to prevent the impact force of the hook head device (5) from acting directly on the positioning spring (8).

5. The mine car of the novel automatic hook-up device for underground rail transport in coal mines according to claim 1, characterized in that: The hook head buffer box (1) has a front baffle (9) that can slide back and forth on one side near the universal head box (7). The other side of the front baffle (9) is abutted by a rear baffle (12) that can slide back and forth through a large anti-collision spring (10). The hook head buffer box (1) is provided with a cover plate (21). The cover plate (21) is used to prevent the front and rear baffles from detaching from the hook head buffer box when they slide. The cover plate (21) is fixed on the hook head buffer box (1).

6. The mine car of the novel automatic hook-up device for underground rail transport in coal mines according to claim 1, characterized in that: The hook head device (5) includes a hook tongue (2), an anti-slip block (4), and a hook lock iron (6). When the front and rear hook head devices (5) are combined, the two hook tongues (2) abut against each other and rotate until the hook lock iron (6) limits the rotation mechanism of the hook tongues (2). The anti-slip block (4) is fixedly connected to the upper end face of the hook head device (5). The anti-slip block (4) is used to prevent the two hook tongues (2) from going up or down.

7. The mine car of the novel automatic hook-up device for underground rail transport in coal mines according to claim 1, characterized in that: The lower plane of the hook tongue (2) of the hook device (5) is higher than the lower plane of the hook buffer box (1), which raises the height of the hook device (5) from the ground and prevents the hook device (5) from hitting the sleeper or ballast at the slope change point.

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