A safety self-locking device for a wheeled track walking clamping device

Abstract

The present invention discloses a safety self-locking device for a wheeled track walking and clamping device, which includes a mounting housing, a turntable swing rod mechanism, a self-locking moving mechanism, a lock buckle unlocking mechanism and a limit plate. The device is installed on the track walking and clamping device through the mounting housing. The limit plate adopts a multi-section structure and is fixedly installed on the inner sides of the vertical ribs of the two sides of the track. In the turntable swing rod mechanism, the toothed disk is fixedly connected to the wheel axle, and the swing rod is hinged to the mounting housing through a pin shaft. The self-locking moving mechanism is sleeved in the guide sleeve of the mounting housing through a moving shaft to form a moving pair. The lock buckle unlocking mechanism is installed in the groove of the mounting housing. The present invention combines the swing rod mechanism with a spring, uses the rotation of the wheel axle of the wheeled walking and clamping device as the power source, realizes the self-locking of the device, and achieves the purpose of preventing backward movement when the clamping device clamps. It has the characteristics of simple and reliable structure, low cost and high efficiency. The multi-section structure of the limit plate is suitable for the working conditions of different moving distances of the device, and has a wide application range.

Description

Technical Field

[0001] The present invention relates to the technical field of track equipment, and particularly to the research on a safety self-locking device for a wheeled track walking and clamping device. Background Art

[0002] With the rapid development of the mechanical equipment manufacturing industry, wheeled tracks have become popular in large-scale production activities such as mining and metallurgy. For the operation, movement, loading, etc. in the process of large-scale mechanical production, wheeled track walking and clamping devices are widely used in the workshops of heavy and large mechanical production plants due to their excellent stability, reliability, and adaptability to complex working conditions. In the application of track walking and clamping devices, due to their huge weight and large inertia, if they slide or move when the work stops, it will cause great harm. Therefore, it is necessary to pay attention to the research on a safety self-locking device for a wheeled track walking and clamping device. Therefore, developing a safe, reliable, and highly stable safety self-locking device can ensure the safe use of wheeled track walking and clamping devices and has good practical application value. Summary of the Invention

[0003] The technical solution adopted by the present invention to solve the above technical problems is: a safety self-locking device for a track walking and clamping device. The present invention includes an installation housing, a turntable swing rod mechanism, a self-locking moving mechanism, a lock release mechanism, and a limit plate. The 2 limit plates are respectively cut from angle steel and are symmetrically installed on the vertical rib plates of the two side tracks in multiple sections through bolts.

[0004] The installation housing includes a rear plate, a left side plate, a right side plate, a support plate, a guide sleeve, and a support block; the rear plate is fixedly connected to the track walking device through bolts, the left side plate and the right side plate are respectively welded on both sides of the rear plate, the support plate is welded to the rear plate, the left side plate, and the right side plate respectively, the guide sleeve is welded in the middle of the support plate, and the support block is welded on the upper part of the right side plate;

[0005] The turntable swing rod mechanism includes a toothed disk, a pressure plate, a fixed block, and a Z-shaped swing rod; the Z-shaped swing rod is hinged to the support block on the installation housing through a pin shaft to form a rotating pair. The 2 fixed blocks are respectively welded on both sides of the toothed disk, and the toothed disk and the wheel shaft are fixedly connected by a pressure plate using bolts; one end of the Z-shaped swing rod is placed in the tooth groove of the toothed disk;

[0006] The described self-locking moving mechanism includes a pressure sleeve, a support sleeve, a moving shaft, a pressure spring, a downward pressure spring, an unlocking limit block, a self-locking limit block, a self-locking block, a self-locking swing rod and a cam follower; the two downward pressure springs are respectively placed in the round holes at both ends of the support plate. The moving shaft is sleeved in the guide sleeve to form a moving pair. The support sleeve is fixedly connected to the upper end of the moving shaft by screws. The support sleeve presses on the upper ends of the two downward pressure springs and positions the downward pressure springs through bolts. The pressure sleeve is sleeved in the support sleeve to form a moving pair. The pressure spring is placed between the pressure sleeve and the support sleeve; the two self-locking blocks are respectively welded on both sides of the moving shaft. The unlocking limit block is welded to the lower left end of the moving shaft, and the self-locking limit block is welded to the lower right end of the moving shaft. The upper end of the self-locking swing rod is hinged to the lower end of the moving shaft through a pin shaft to form a rotating pair. The right side of the upper end of the self-locking swing rod fits with the left side of the self-locking limit block, so that the self-locking swing rod can only swing clockwise. The cam follower is fixedly connected to the lower end of the self-locking swing rod through bolts;

[0007] The described lock unlocking mechanism includes an unlocking rod, a lock hook block, a self-locking spring, an unlocking swing rod and a lifting bearing; both ends of the unlocking rod are respectively sleeved in the lower long grooves of the left side plate and the right side plate in the installation housing. The two lock hook blocks are respectively sleeved in the middle square holes of the left side plate and the right side plate in the installation housing. The two self-locking springs are respectively sleeved in the two lock hook blocks. At the same time, the two lock hook blocks are respectively fitted and installed with the inclined surface of the unlocking rod, so that the self-locking springs are pre-compressed. The upper end of the unlocking swing rod is hinged to the middle of the unlocking rod through a pin shaft to form a rotating pair. The left side of the unlocking swing rod fits with the right side of the unlocking limit block, so that the unlocking swing rod can only swing counterclockwise. The lifting bearing is hinged to the lower end of the unlocking swing rod through a pin shaft.

[0008] Compared with the prior art, the technical effect of the present invention is that: through the combination of the swing rod mechanism and the spring, using the rotation of the wheel shaft of the wheeled walking clamping device as the power source, the present invention realizes the self-locking of the device, achieves the purpose of preventing backward movement when the clamping device clamps, and has the characteristics of simple structure, compact device, low manufacturing cost and high efficiency. Brief Description of the Drawings

[0009] Figure 1 is the assembly axonometric drawing of the present invention

[0010] Figure 2 is the structural diagram of the installation housing and the turntable swing rod mechanism of the present invention

[0011] Figure 3 is the structural diagram of the self-locking moving mechanism of the present invention

[0012] Figure 4 is the structural diagram of the lock unlocking mechanism of the present invention Detailed Embodiment

[0013] The present invention will be further described in detail below with reference to the accompanying drawings.

[0014] As shown in the attached drawings: The present invention includes an installation housing 1, a turntable swing rod mechanism 2, a self-locking movement mechanism 3, a lock unlocking mechanism 4 and a limit plate 5; the two limit plates 5 are divided into multiple segments, which are respectively cut from angle steel, and the two limit plates are symmetrically installed on the vertical rib plates of the two side tracks through bolts.

[0015] The installation housing 1 includes a rear plate 101, a left side plate 102, a right side plate 103, a support plate 104, a guide sleeve 105 and a support block 106; the rear plate 101 is fixedly connected to the track walking equipment through bolts, the left side plate 102 and the right side plate 103 are respectively welded on both sides of the rear plate 101, the support plate 104 is respectively welded to the rear plate 101, the left side plate 102 and the right side plate 103, the guide sleeve 105 is welded in the middle of the support plate 104, and the support block 106 is welded on the upper part of the right side plate 103;

[0016] The turntable swing rod mechanism 2 includes a toothed disk 201, a pressure plate 202, a fixed block 203 and a Z-shaped swing rod 204; the Z-shaped swing rod 204 is hinged to the support block 106 on the installation housing 1 through a pin shaft to form a rotating pair, the two fixed blocks 203 are respectively welded on both sides of the toothed disk 201, and the toothed disk 201 and the wheel shaft are fixedly connected by a pressure plate 202 using bolts; one end of the Z-shaped swing rod 204 is placed in the tooth groove of the toothed disk 201;

[0017] The self-locking movement mechanism 3 includes a pressure application sleeve 301, a support sleeve 302, a moving shaft 303, a pressure application spring 304, a downward pressure spring 305, an unlocking limit block 306, a self-locking limit block 307, a self-locking block 308, a self-locking swing rod 309 and a cam follower 310; the two downward pressure springs 305 are respectively placed in the round holes at both ends of the support plate 104, the moving shaft 303 is sleeved in the guide sleeve 105 to form a moving pair, the support sleeve 302 is fixedly connected to the upper end of the moving shaft 303 through screws, the support sleeve 302 presses on the upper ends of the two downward pressure springs 305, and the downward pressure springs 305 are positioned by bolts, the pressure application sleeve 301 is sleeved in the support sleeve 302 to form a moving pair, and the pressure application spring 304 is placed between the pressure application sleeve 301 and the support sleeve 302; the two self-locking blocks 308 are respectively welded on both sides of the moving shaft 303, the unlocking limit block 306 is welded on the lower left end of the moving shaft 303, the self-locking limit block 307 is welded on the lower right end of the moving shaft 303, the upper end of the self-locking swing rod 309 is hinged to the lower end of the moving shaft 303 through a pin shaft to form a rotating pair, the right side surface of the upper end of the self-locking swing rod 309 is in contact with the left side surface of the self-locking limit block 307, so that the self-locking swing rod 309 can only swing clockwise, and the cam follower 310 is fixedly connected to the lower end of the self-locking swing rod 309 through bolts;

[0018] The described latch unlocking mechanism 4 includes an unlocking rod 401, a locking hook block 402, a self-locking spring 403, an unlocking swing rod 404 and a lifting bearing 405; both ends of the unlocking rod 401 are respectively sleeved in the lower long grooves of the left side plate 102 and the right side plate 103 in the installation housing 1, and two locking hook blocks 402 are respectively sleeved in the middle square holes of the left side plate 102 and the right side plate 103 in the installation housing 1. Two self-locking springs 403 are respectively sleeved in the two locking hook blocks 402. At the same time, the two locking hook blocks 402 are respectively fitted and installed with the inclined surface of the unlocking rod 401, so that the self-locking spring 403 is pre-compressed. The upper end of the unlocking swing rod 404 is hinged to the middle part of the unlocking rod 401 through a pin shaft to form a rotating pair. The left side surface of the unlocking swing rod 404 is in contact with the right side surface of the unlocking limit block 306, so that the unlocking swing rod 404 can only swing counterclockwise. The lifting bearing 405 is hinged to the lower end of the unlocking swing rod 404 through a pin shaft.

[0019] The working principle of the present invention is as follows: When the track walking device is not working, the device is in the initial state. At this time, the lower half of the lifting bearing 405 is in the groove of the limit plate 5, the cam follower 310 on the self-locking swing rod 309 is above the limit plate 5, the Z-shaped swing rod 204 and the pressure sleeve 301 are out of contact, and both the pressure sleeve 301 and the support sleeve 302 are at the highest end; when the track walking device moves forward, it reaches near the working station according to the three states of walking, positioning and self-locking. Walking state: The wheel axle drives the toothed disk 201 to rotate clockwise. The toothed disk 201 makes the Z-shaped swing rod 204 swing counterclockwise through the disk teeth. The Z-shaped swing rod 204 pushes the pressure sleeve 301 to move downward, driving the support sleeve 302 and the moving shaft 303 to move downward. The pressure spring 304 and the downward pressure spring 305 are compressed. The downward movement of the moving shaft 303 causes the self-locking blocks 308 on both sides to move along with it, pushing the locking hook blocks 402 on both sides to move outward. The self-locking spring 403 is compressed. The upper surface of the self-locking block 308 moves downward below the lower surface of the locking hook block 402. During this process, if the lower half of the lifting bearing 405 is in the groove of the limit plate 5, the locking hook block 402 moves inward under the restoring force of the self-locking spring 403. When the lower half of the lifting bearing 405 touches the front side of the groove of the limit plate 5, the unlocking rod 401 is pushed upward, and then the locking hook blocks 402 on both sides are pushed outward. At this time, after the cam follower 310 touches the front side of the groove of the limit plate 5, the self-locking swing rod 309 swings clockwise, causing the cam follower 310 to move upward and contact the upper surface of the limit plate 5; Positioning state: When the track walking device moves forward to near the working station, when the lower half of the lifting bearing 405 is in the groove of the limit plate 5, the track walking device is controlled to stop moving forward. At this time, the self-locking swing rod 309 is also in the groove of the limit plate 5, and at the same time, the locking hook block 402 moves inward under the restoring force of the self-locking spring 403; Self-locking state: When the clamping action pushes the track walking device to move backward, the toothed disk 201 makes the Z-shaped swing rod 204 swing clockwise through the disk teeth. Under the restoring force of the pressure spring 304 and the downward pressure spring 305, the upward movement of the moving shaft 303 causes the lower surface of the locking hook block 402 to hook the upper surface of the self-locking block 308. The self-locking swing rod 309 remains in the groove of the limit plate 5. At the same time, the pressure sleeve 301 and the support sleeve 302 return to their positions. The track walking device continues to move backward. When the self-locking swing rod 309 touches the rear side of the groove of the limit plate 5, the track walking device stops moving, realizing self-locking.When the clamping work is completed and the device is in a self-locking state and needs to retract, first, the track walking device moves forward, so that the cam follower 310 moves from the groove of the limit plate 5 to the upper surface of the limit plate 5. During this process, when the lower half of the lifting bearing 405 touches the front side of the groove of the limit plate 5, the unlocking lever 404 is pushed upward to drive the locking hook blocks 402 on both sides to move outward. At this time, after the cam follower 310 touches the front side of the groove of the limit plate 5, the self-locking swing rod 309 swings clockwise, so that the cam follower 310 moves upward to contact the upper surface of the limit plate 5. At this time, the working state of the device is the same as that at the end of the walking state; then the track walking device retracts, and the driving gear-shaped disk 201 drives the Z-shaped swing rod 204 to swing clockwise through the disk teeth. Under the restoring forces of the pressing spring 304 and the downward pressing spring 305, the moving shaft 303 moves upward to drive the self-locking block 308 to move upward above the locking hook block 402. Then, the lifting bearing 405 falls into the groove of the limit plate 5. At the same time, the locking hook block 402 moves inward and returns to its position under the restoring force of the self-locking spring 403. The track walking device continues to retract. After the lower half of the lifting bearing 405 touches the rear side of the groove of the limit plate 5, the unlocking swing rod 404 rotates counterclockwise until the track walking device retracts to the initial position and stops, and the device returns to the initial state.

Claims

1. A safety self-locking device for a wheeled track walking clamping device, characterized in that: It includes an installation housing, a turntable swing rod mechanism, a self-locking moving mechanism, a lock unlocking mechanism and a limit plate; the device is installed on the rail walking clamping device through the installation housing. In the turntable swing rod mechanism, the toothed disk is fixedly connected to the wheel shaft, the swing rod is hinged to the installation housing through a pin shaft, the self-locking moving mechanism is sleeved on the guide sleeve of the installation housing through a moving shaft to form a moving pair, and the lock unlocking mechanism is installed in the groove of the installation housing; The described limit plate is cut from an angle steel and fixedly installed on the inner sides of the vertical ribs on both sides of the track; the installation housing includes a rear plate, a left side plate, a right side plate, a support plate, a guide sleeve and a support block; the rear plate is fixedly connected to the rail walking device, the left side plate and the right side plate are respectively welded on both sides of the rear plate, the support plate is respectively welded to the rear plate, the left side plate and the right side plate, the guide sleeve is welded in the middle of the support plate, and the support block is welded on the upper part of the right side plate; The turntable swing rod mechanism includes a toothed disk, a pressing plate, a fixed block and a Z-shaped swing rod; the Z-shaped swing rod is hinged to the support block on the installation housing through a pin shaft to form a rotating pair. Two fixed blocks are respectively welded on both sides of the toothed disk, and the toothed disk and the wheel shaft are fixedly connected by using a pressing plate; one end of the Z-shaped swing rod is placed in the tooth groove of the toothed disk; The self-locking moving mechanism includes a pressure sleeve, a support sleeve, a moving shaft, a pressure spring, a downward pressure spring, an unlocking limit block, a self-locking limit block, a self-locking block, a self-locking swing rod and a cam follower; two downward pressure springs are respectively placed in the round holes at both ends of the support plate. The moving shaft is sleeved in the guide sleeve to form a moving pair. The support sleeve is fixedly connected to the upper end of the moving shaft. The support sleeve presses on the upper ends of the two downward pressure springs and positions the downward pressure springs. The pressure sleeve is sleeved in the support sleeve to form a moving pair, and the pressure spring is placed between the pressure sleeve and the support sleeve; two self-locking blocks are respectively welded on both sides of the moving shaft. The unlocking limit block is welded at the lower left end of the moving shaft, and the self-locking limit block is welded at the lower right end of the moving shaft. The upper end of the self-locking swing rod is hinged to the lower end of the moving shaft through a pin shaft to form a rotating pair. The right side of the upper end of the self-locking swing rod fits with the left side of the self-locking limit block, so that the self-locking swing rod can only swing clockwise. The cam follower is fixedly connected to the lower end of the self-locking swing rod; The lock unlocking mechanism includes an unlocking rod, a lock hook block, a self-locking spring, an unlocking swing rod and a lifting bearing; both ends of the unlocking rod are respectively sleeved in the long grooves at the lower parts of the left side plate and the right side plate in the installation housing. Two lock hook blocks are respectively sleeved in the square holes in the middle of the left side plate and the right side plate in the installation housing. Two self-locking springs are respectively sleeved in the two lock hook blocks. At the same time, the two lock hook blocks are respectively fitted and installed with the inclined surface of the unlocking rod, so that the self-locking springs are pre-compressed. The upper end of the unlocking swing rod is hinged to the middle of the unlocking rod through a pin shaft to form a rotating pair. The left side of the unlocking swing rod fits with the right side of the unlocking limit block, so that the unlocking swing rod can only swing counterclockwise. The lifting bearing is hinged to the lower end of the unlocking swing rod through a pin shaft; The described limit plate can be installed in different segments according to the working distance to meet the requirements of different working conditions.

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