A temporary trolley buffer for overhead crane maintenance that is convenient for disassembly and assembly and its usage method

Abstract

The present invention relates to a temporary overhead traveling crane car bumper for maintenance with convenient disassembly and assembly and its usage method, which includes a locking screw rod with opposite thread directions at both ends, and a left arm and a right arm that are arranged left and right and are hinged to each other. The lower ends of the left arm and the right arm are respectively located on both sides of the track. The upper end of the left arm is pivotally connected with a rotating shaft pin. One end of the locking screw rod passes through the rotating shaft pin and is threadedly connected, so that the other end of the locking screw rod swings up and down above the right arm. A nut is installed at the end of the locking screw rod away from the rotating shaft pin. The upper end of the right arm is provided with a U-shaped groove for placing the locking screw rod and a clamping groove adapted to the nut. The clamping groove is located between the U-shaped groove and the rotating shaft pin. The present invention clamps the track through the left arm and the right arm. After use, the locking screw rod can be lifted upward to quickly disassemble the car bumper. The installation and disassembly of the present invention are simple and convenient. It can be mounted on the overhead traveling crane track at any position. The front guide plate presses on the track surface to provide effective stopping and will not cause damage to the overhead traveling crane track.

Description

Technical Field

[0001] The present invention relates to the field of lifting equipment, especially to the field of overhead cranes, and specifically refers to a temporary overhead crane car stop for maintenance with convenient disassembly and assembly and its usage method. Background Art

[0002] Overhead cranes are the most widely used and the largest in number among lifting equipment. The overhead crane's main girder runs longitudinally along the tracks laid on both sides of the elevated racks, spanning over the workshop to lift materials. In each workshop in the metallurgical smelting area, there are several overhead cranes operating busily. When a certain overhead crane needs to stop for maintenance or handle other emergencies, it is necessary to prevent the adjacent overhead cranes on the left and right from intruding into the maintenance area to avoid posing a safety threat to the equipment and maintenance personnel. On the basis of safety warning ropes and special person guardianship, an additional safety measure is needed to block the accidental intrusion of adjacent overhead cranes. Summary of the Invention

[0003] In view of the deficiencies of the prior art, the present invention provides a temporary overhead crane car stop for maintenance with convenient disassembly and assembly and its usage method. When a certain overhead crane needs to stop for maintenance, this car stop is installed on the upper part of the main girder tracks on both sides at a certain distance from this crane, which can effectively slow down and block the intrusion of the overhead crane into the designated maintenance area, providing a strong safety guarantee for the maintenance work.

[0004] The present invention is realized through the following technical solutions. A temporary overhead crane car stop for maintenance with convenient disassembly and assembly is provided, including a locking screw rod with opposite thread directions at both ends, and a left arm and a right arm which are arranged left and right and are hinged to each other. The lower ends of the left arm and the right arm are respectively located on both sides of the track. The upper end of the left arm is pivotally connected with a pivot pin. One end of the locking screw rod passes through the pivot pin and is threadedly connected, so that the other end of the locking screw rod swings up and down above the right arm. A nut is installed at the end of the locking screw rod far from the pivot pin. The upper end of the right arm is provided with a U-shaped groove for the locking screw rod to be placed in and a clamping groove adapted to the nut. The clamping groove is located between the U-shaped groove and the pivot pin.

[0005] In this solution, the thread directions at both ends of the locking screw rod are opposite, and the end of the locking screw rod with the nut can swing up and down. The locking screw rod is placed in the U-shaped groove, and the nut is placed in the clamping groove, so that the nut is stuck in the clamping groove and cannot rotate, and the nut abuts against the side surface of the U-shaped groove. By rotating the locking screw rod, the locking screw rod abuts against the side surface of the U-shaped groove through the nut and pushes the upper end of the right arm to move to the right. The locking screw rod pushes the upper end of the left arm to move to the left through the pivot pin, so as to clamp the track through the lower ends of the left arm and the right arm. After use, reverse-rotate the locking screw rod, and then lift the locking screw rod upward, so that the car stop can be quickly disassembled.

[0006] As an optimization, a front guide plate that fits on the upper end surface of the track is fixedly connected to one side of the right arm along the length direction of the track. The upper end surface of the front guide plate is arc-shaped and the arc surface faces the wheel direction. In this solution, the upper end surface of the front guide plate is arc-shaped and the arc surface faces the wheel direction, so that the arc surface can reduce the impact of the wheel on the front guide plate. When the wheel travels to the arc surface, the wheel climbs on the arc surface, so that the impact force is slowly applied to the front guide plate.

[0007] As an optimization, a front-end flat plate for the wheel to climb onto is fixedly connected to the front end of the front guide plate. The thickness of the front-end flat plate is 1 - 4 mm and the length is greater than 100 mm. Through the front-end flat plate provided in this solution, when the wheel travels above the front-end flat plate, the driving force of the wheel cannot drive the car stop to move, and at the same time, the damage to the track can be reduced.

[0008] As an optimization, arc-shaped jaws adapted to the side surface of the track are provided at the lower ends of both the left arm and the right arm. The arc-shaped jaws in this solution are stuck on the side surface of the track, thereby increasing the clamping force. At the same time, since the side surface of the track is an inwardly concave structure, the car stop is positioned up and down by the arc-shaped jaws being stuck on the inwardly concave side surface of the track.

[0009] As an optimization, two left ear plates are fixedly connected to the side of the left arm facing the right arm, and two right ear plates are fixedly connected to the side of the right arm facing the left arm. A pin shaft passes through the left ear plate and the right ear plate, and both the left ear plate and the right ear plate are located above the track. The left ear plate and the right ear plate in this solution are connected by a pin shaft, thereby realizing the hinged connection between the left arm and the right arm.

[0010] As an optimization, an operation block is fixedly connected to the middle of the locking screw, and the operation block is hexagonal. The operation block in this solution is hexagonal, so that the locking screw can be rotated by rotating the operation block.

[0011] As an optimization, both ends of the rotating shaft pin are pivotally connected to two pin shaft seat plates, and the pin shaft seat plates are fixedly connected to the upper end of the left arm. Both ends of the rotating shaft pin in this solution are pivotally connected to two pin shaft seat plates, so that the rotating shaft is pivotally connected to the left arm through the pin shaft seat plates.

[0012] A using method of a car stop for a large vehicle includes the following steps:

[0013] a. Clamp the lower ends of the left arm and the right arm on both sides of the track respectively, so that the front guide plate fits on the upper end surface of the track;

[0014] b. Swing the end of the locking screw with the nut downward, so that the locking screw is placed in the U-shaped groove and the nut is placed in the card slot;

[0015] c. Rotate the locking screw so that the locking screw is pressed against the side of the U-shaped groove through the nut and pushes the upper end of the right arm to move to the right. The locking screw pushes the upper end of the left arm to move to the left through the rotating shaft pin, thereby clamping the track through the lower end of the left arm and the lower end of the right arm;

[0016] d. The impact of the wheels on the gear is reduced by the arc-shaped front guide plate, and the front plate is set so that the wheels move above the front plate, so that the driving force of the wheels cannot drive the gear to move;

[0017] e. After use, rotate the locking screw in the opposite direction and then lift the locking screw upward to quickly remove the gear.

[0018] The beneficial effects of the present invention are as follows: the present invention provides a temporary cart stopper for vehicle maintenance that is easy to disassemble and assemble, and a method of using the same, by rotating the locking screw to push the left arm and the right arm to move to both sides, thereby clamping the track through the lower end of the left arm and the lower end of the right arm. After use, the locking screw is rotated in the opposite direction, and then the locking screw is lifted upward, so that the stopper can be quickly removed. The present invention is simple, convenient and quick to install and disassemble, and can be mounted on the upper part of a cart track at any position. The front guide plate is pressed on the track surface, providing an effective stop for adjacent vehicles, and will not cause damage to the cart track. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 yes Figure 1 Left view of

[0021] Figure 3 yes Figure 1 A top view of

[0022] As shown in the figure:

[0023] 1. Left arm, 2. Pin seat plate, 3. Rotating pin, 4. Locking screw, 5. Nut, 6. Slot, 7. U-shaped slot, 8. Right arm, 9. Left ear plate, 10. Right ear plate, 11. Pin, 12. Arc jaws. 13. Front guide plate. DETAILED DESCRIPTION

[0024] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0025] like Figures 1 to 3As shown in the figure, a temporary overhead traveling crane car stop for convenient disassembly and assembly during crane maintenance according to the present invention includes a locking screw rod 4 with opposite thread directions at both ends, and a left arm 1 and a right arm 8 arranged left and right and hinged to each other. The left arm 1 and the right arm 8 are respectively located on both sides of the track, and there is a certain distance between the left arm 1 and the right arm 8, so that the lower ends of the left arm 1 and the right arm 8 can be placed on both sides of the guide rail after being separated.

[0026] On the side of the left arm 1 facing the right arm 8, two left ear plates 9 are fixedly connected. On the side of the right arm 8 facing the left arm 1, two right ear plates 10 are fixedly connected. A pin shaft 11 passes through the left ear plate 9 and the right ear plate 10. The left ear plate 9 and the right ear plate 10 are both located above the track, so as to realize the hinge connection between the left arm 1 and the right arm. The pin shaft 11 is horizontally arranged, and the pin shaft 11 is located at a position slightly lower in the height direction of the left arm 1 and the right arm 8, so as to improve the clamping force at the lower end.

[0027] The lower ends of the left arm 1 and the right arm 8 are respectively located on both sides of the track. The lower ends of the left arm 1 and the right arm 8 are both provided with arc-shaped jaws 12 adapted to the side surface of the track. The arc-shaped jaws 12 can be inserted into the recess on the side surface of the guide rail, so as to improve the clamping force. At the same time, when the wheel hits the car stop, the arc-shaped jaws 12 are stuck at the upper end position of the guide rail groove, and the left ear plate 9 and the right ear plate 10 are stuck on the upper end surface of the guide rail, and a self-locking effect can be achieved.

[0028] The upper end of the left arm 1 is pivotally connected to a rotating shaft pin 3. The length direction of the rotating shaft pin 3 is parallel to the length direction of the guide rail. One end of the locking screw rod 4 passes through the rotating shaft pin 3 and is threadedly connected. The locking screw rod 4 is threadedly connected to the rotating shaft pin 3 through a left-handed thread. Since the rotating shaft pin 3 is pivotally connected to the left arm, the other end of the locking screw rod 4 swings up and down above the right arm 8.

[0029] Both ends of the rotating shaft pin 3 are pivotally connected to two pin shaft seat plates 2 respectively. The pin shaft seat plates 2 are fixedly connected to the upper end of the left arm 1. In this embodiment, a groove is opened at the upper end of the left arm 1, and the pin shaft seat plates 2 are welded in the groove.

[0030] A nut 5 is installed at one end of the locking screw rod 4 away from the rotating shaft pin 3. The nut 5 is a right-handed nut.

[0031] An U-shaped groove 7 for placing the locking screw rod 4 and a card slot 6 adapted to the nut 5 are opened at the upper end of the right arm 8. The card slot 6 is located between the U-shaped groove 7 and the rotating shaft pin 3. The width of the U-shaped groove 7 is slightly larger than the diameter of the locking screw rod 4, and the width of the card slot 6 is the same as the hexagonal width of the nut 5. So when the nut 5 is placed in the card slot 6, the nut 5 cannot rotate. At the same time, the width of the U-shaped groove 7 is smaller than the width of the card slot 6, so that the right arm 8 can be pushed to move to the right through the nut 5.

[0032] An operation block is fixedly connected to the middle of the locking screw rod 4. The operation block is hexagonal.

[0033] One side of the right arm 8 along the length direction of the track is fixedly connected with a front guide plate 13 that fits on the upper end surface of the track, and the upper end surface of the front guide plate 13 is arc-shaped and the arc surface faces the wheel direction.

[0034] The front end of the front guide plate 13 is fixedly connected with a front end flat plate for the wheel to climb up. The thickness of the front end flat plate is 1 - 4 mm and the length is greater than 100 mm.

[0035] A using method of a wagon buffer stop includes the following steps:

[0036] Clamp the lower ends of the left arm 1 and the right arm 8 on both sides of the track respectively, so that the front guide plate 13 fits on the upper end surface of the track.

[0037] Swing the end of the locking screw 4 with the nut 5 downward, put the locking screw 4 into the U-shaped groove 7, and put the nut 5 into the clamping groove 6.

[0038] Rotate the locking screw 4, so that the locking screw 4 pushes against the side of the U-shaped groove 7 through the nut 5 and pushes the upper end of the right arm 8 to move rightward, and the locking screw 4 pushes the upper end of the left arm 8 to move leftward through the rotating shaft pin 3, thereby clamping the track through the lower ends of the left arm 1 and the right arm 8.

[0039] Reduce the impact of the wheel on the buffer stop through the arc-shaped front guide plate 13. By setting the front end flat plate, when the wheel walks above the front end flat plate, the driving force of the wheel cannot drive the buffer stop to move.

[0040] After use, rotate the locking screw 4 in the reverse direction to make the acting force between the nut 5 and the right arm 8 disappear, and then lift the locking screw 4 upward, so that the buffer stop can be quickly disassembled.

[0041] Certainly, the above description is not limited to the above examples. The technical features not described in the present invention can be realized by or adopted the existing technology, and will not be elaborated here; the above embodiments and the drawings are only used to illustrate the technical solutions of the present invention and are not a limitation to the present invention. The present invention has been described in detail with reference to the preferred embodiments. Those of ordinary skill in the art should understand that any changes, modifications, additions or substitutions made by those of ordinary skill in the art within the scope of the essence of the present invention do not depart from the purpose of the present invention and should also belong to the protection scope of the claims of the present invention.

Claims

1. A temporary overhead traveling crane car stop for convenient disassembly and assembly during maintenance, characterized in that: It includes a locking screw rod (4) with opposite thread directions at both ends, and a left arm (1) and a right arm (8) which are arranged left and right and hinged to each other. The lower ends of the left arm (1) and the right arm (8) are respectively located on both sides of the track. The upper end of the left arm (1) is pivotally connected with a rotating shaft pin (3). One end of the locking screw rod (4) passes through the rotating shaft pin (3) and is threadedly connected, so that the other end of the locking screw rod (4) swings up and down above the right arm (8). A nut (5) is installed at the end of the locking screw rod (4) far away from the rotating shaft pin (3). An upper end of the right arm (8) is provided with a U-shaped groove (7) for the locking screw rod (4) to be placed in and a clamping groove (6) adapted to the nut (5). The clamping groove (6) is located between the U-shaped groove (7) and the rotating shaft pin (3); On one side of the right arm (8) along the length direction of the track, a front guide plate (13) attached to the upper end surface of the track is fixedly connected. The upper end surface of the front guide plate (13) is arc-shaped and the arc surface faces the wheel direction; A front end flat plate for the wheel to climb onto is fixedly connected to the front end of the front guide plate (13). The thickness of the front end flat plate is 1 - 4 mm and the length is greater than 100 mm; Arc-shaped clamping jaws (12) adapted to the side surface of the track are provided at the lower ends of both the left arm (1) and the right arm (8); The using method of this temporary large vehicle bumper includes the following steps: a. Clamp the lower ends of the left arm (1) and the right arm (8) on both sides of the track respectively, so that the front guide plate (13) is attached to the upper end surface of the track; b. Swing the end of the locking screw rod (4) with the nut (5) downward, so that the locking screw rod (4) is placed in the U-shaped groove (7) and the nut (5) is placed in the clamping groove (6); c. Rotate the locking screw rod (4), so that the locking screw rod (4) abuts against the side surface of the U-shaped groove (7) through the nut (5) and pushes the upper end of the right arm (8) to move rightward. The locking screw rod (4) pushes the upper end of the left arm (1) to move leftward through the rotating shaft pin (3), so as to clamp the track through the lower ends of the left arm (1) and the right arm (8); d. Reduce the impact of the wheel on the bumper through the arc-shaped front guide plate (13). By providing the front end flat plate, when the wheel moves to above the front end flat plate, the driving force of the wheel cannot drive the bumper to move; e. After use, rotate the locking screw rod (4) in the reverse direction, and then lift the locking screw rod (4) upward, so that the bumper can be quickly disassembled.

2. The temporary overhead traveling crane car stop for convenient disassembly and assembly during maintenance according to claim 1, characterized in that: Two left ear plates (9) are fixedly connected to the side of the left arm (1) facing the right arm (8). Two right ear plates (10) are fixedly connected to the side of the right arm (8) facing the left arm (1). A pin shaft (11) passes through the left ear plate (9) and the right ear plate (10). Both the left ear plate (9) and the right ear plate (10) are located above the track.

3. The temporary overhead traveling crane car stop for convenient disassembly and assembly during maintenance according to claim 1, characterized in that: An operating block is fixedly connected to the middle of the locking screw rod (4). The operating block is hexagonal.

4. The temporary overhead traveling crane car stop for convenient disassembly and assembly during maintenance according to claim 1, characterized in that: Both ends of the rotating shaft pin (3) are pivotally connected to two pin shaft seat plates (2). The pin shaft seat plates (2) are fixedly connected to the upper end of the left arm (1).

Images