Crane equipment buffering and lifting device

Abstract

The utility model relates to a crane equipment buffer lifting device which comprises a bridge frame, a moving trolley is arranged on the upper side of the bridge frame, fixing plates are installed at the two ends of the upper side of the bridge frame, first hydraulic damping rods are installed on the sides, facing the moving trolley, of the fixing plates, and abutting plates are installed at the ends of the telescopic ends of the first hydraulic damping rods. The outer surface of the first hydraulic damping rod is sleeved with a first spring, and the two ends of the first spring abut against the fixing plate and the abutting plate correspondingly. The two ends of the bridge frame in the length direction are each provided with two side blocks, the two side blocks are arranged on the two sides of the bridge frame in the width direction, and the opposite faces of the two side blocks are each provided with a first cylinder. Through the arrangement of the first hydraulic damping rod and the first spring, when the moving trolley collides with the abutting plate, the buffering effect can be achieved, the moving speed of the moving trolley is reduced, through the arrangement of the conduction mechanism, the clamping plates on the two sides can be pressed on the two sides of the moving trolley at the same time, and therefore the speed can be further reduced, and movement can be stopped.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a buffer lifting device for crane equipment. Background Art

[0002] A crane is a mechanical device used to lift, carry and move heavy objects. Cranes are usually composed of hooks, lifting mechanisms, hoist frames, motors, control systems and other components. They are widely used in industries, construction sites, ports, warehouses and other places for lifting heavy objects, setting up equipment, loading and unloading goods and other operations. Different types of cranes include bridge cranes, gantry cranes, tower cranes, truck cranes, etc. Each type of crane has specific application scenarios and uses.

[0003] When the existing bridge crane is in use, the hoisted objects can be moved by a mobile trolley. The mobile trolley is mainly composed of an electric motor, a reducer, a brake and wheels. However, if the brake fails, the mobile trolley will continue to move on the track due to inertia. When the mobile trolley moves to both sides of the track, a collision accident is likely to occur, resulting in a safety hazard. Utility Model Content

[0004] The utility model aims to provide a buffer lifting device for crane equipment which can provide a buffering effect when a moving trolley moves to both sides of a track.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is as follows.

[0006] A buffer lifting device for crane equipment includes a bridge, a mobile trolley is arranged on the upper side of the bridge, fixed plates are installed at both ends of the upper side of the bridge, a first hydraulic damping rod is installed on the side of the fixed plate facing the mobile trolley, an abutment plate is installed at the end of the telescopic end of the first hydraulic damping rod, a first spring is sleeved on the outer surface of the first hydraulic damping rod, and the two ends of the first spring are respectively abutted with the fixed plate and the abutment plate. Two side blocks are installed at both ends of the length direction of the bridge, and the two side blocks are arranged on both sides of the width direction of the bridge, and the opposite sides of the two side blocks are installed with a first cylinder, a first piston rod is arranged inside the first cylinder, a clamping plate is installed at the end of the first piston rod, and a transmission mechanism is arranged between the abutment plate and the first cylinder, and the transmission mechanism can inflate the first cylinder when the abutment plate is compressed. A winch is installed on the mobile trolley, and a steel wire rope is wound around the winch. A mounting plate is installed at the end of the steel wire rope, and a hook is installed on the lower surface of the mounting plate.

[0007] It can be seen that through the setting of the first hydraulic damping rod and the first spring, when the mobile trolley hits the abutment plate, it can play a buffering role and slow down the moving speed of the mobile trolley, and through the setting of the transmission mechanism, the clamping plates on both sides can be pressed on both sides of the mobile trolley at the same time, so that the speed can be further slowed down and the movement can be stopped. Moreover, since the mobile trolley is clamped by the two clamping plates, the thrust of the rebound after being compressed by the first spring can be reduced, thereby ensuring that the mobile trolley can quickly be in a stable state and avoiding the occurrence of safety accidents.

[0008] Furthermore, the transmission mechanism includes a second cylinder installed on the surface of the fixed plate, a second piston rod is arranged inside the second cylinder, and the end of the second piston rod is connected to the abutment plate, and a connecting pipe is connected between the second cylinder and the first cylinder.

[0009] When the abutment plate is hit by the moving trolley, it drives the second piston rod to move into the second cylinder, and then pushes the air inside the second cylinder into the connecting pipe and into the first cylinder. After the first cylinder is inflated, it pushes the first piston rod to move outward, and then can drive the clamping plate to press against the side surface of the moving trolley to decelerate it. When the impact force of the moving trolley is large, the stronger the clamping force of the clamping plate on the moving trolley, the more obvious the deceleration effect. When the moving trolley stops, the compressed first spring releases the elastic force, and then pushes the moving trolley to move in the opposite direction. At this time, the second piston rod gradually extends outward from the second cylinder, and then gradually reduces the pressure inside the first cylinder, so that the clamping force of the clamping plate on the side surface of the moving trolley gradually decreases. In this process, part of the elastic force released by the first spring can be offset, so that the moving trolley can quickly be in a stable state.

[0010] Furthermore, limit rods are installed on the outer surfaces of both sides of the splint, the ends of the limit rods penetrate to the other side of the side block, and the limit blocks are installed on the ends of the limit rods.

[0011] When the clamping plate clamps the side surface of the moving trolley, the first piston rod is subjected to a lateral force. Therefore, by setting the limit rod, the lateral force received by the first piston rod can be offset, thereby improving its structural strength.

[0012] Furthermore, a rubber pad is provided on the outer surface of the abutment plate.

[0013] The rubber pad can provide a certain buffering effect when the moving trolley collides with the abutment plate, and can prevent the abutment plate from being damaged.

[0014] Furthermore, a second spring is sleeved on the outer surfaces of the second cylinder and the second piston rod, and two ends of the second spring are respectively in contact with the fixing plate and the contact plate.

[0015] By providing the second spring, when the abutment plate is hit, the second spring will be compressed, thereby further improving the buffering effect on the moving vehicle.

[0016] Furthermore, side plates are installed on both sides of the mounting plate, a second hydraulic damping rod is installed on the upper surface of the side plate, a top plate is installed at the end of the telescopic end of the second hydraulic damping rod, a third spring is sleeved on the outer surface of the second hydraulic damping rod, and both ends of the third spring are respectively abutted against the top plate and the side plate.

[0017] When the winch drives the mounting plate to rise too high, the top plate will contact the top of the bridge, and the second hydraulic damping rod and the third spring can play a buffering role to avoid collision between the mounting plate and the top of the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the regional structure of the fixed plate in the utility model;

[0020] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the fixed plate area in the utility model;

[0021] Figure 4 for Figure 1 A is an enlarged schematic diagram.

[0022] In the figure: 100, bridge; 101, moving trolley; 102, fixed plate; 103, first hydraulic damping rod; 104, abutment plate; 105, first spring; 106, side block; 107, first cylinder; 108, first piston rod; 109, clamping plate; 110, wire rope; 111, mounting plate; 112, hook; 113, winch; 200, transmission mechanism; 201, second cylinder; 202, second piston rod; 203, connecting pipe; 300, limit rod; 301, limit block; 400, second spring; 500, side plate; 501, second hydraulic damping rod; 502, top plate; 503, third spring. DETAILED DESCRIPTION

[0023] The utility model is described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-4As shown, a buffer lifting device is equipped with a crane, including a bridge frame 100, a moving trolley 101 is arranged on the upper side of the bridge frame 100, fixed plates 102 are installed at both ends of the upper side of the bridge frame 100, a first hydraulic damping rod 103 is installed on the side of the fixed plate 102 facing the moving trolley 101, an abutment plate 104 is installed at the end of the telescopic end of the first hydraulic damping rod 103, and a first spring 105 is sleeved on the outer surface of the first hydraulic damping rod 103, and the two ends of the first spring 105 are respectively abutted against the fixed plate 102 and the abutment plate 104. Two side blocks 106 are installed at both ends of the bridge frame 100 in the length direction, and the two side blocks 106 are arranged on both sides of the bridge frame 100 in the width direction. The first cylinder 107 is installed on the opposite sides of the two side blocks 106. The first cylinder 107 is provided with a first piston rod 108 inside. The end of the first piston rod 108 is provided with a clamping plate 109. A transmission mechanism 200 is provided between the abutment plate 104 and the first cylinder 107. The transmission mechanism 200 can inflate the first cylinder 107 when the abutment plate 104 is compressed. A winch 113 is installed on the mobile trolley 101. A steel wire rope 110 is wound around the winch 113. A mounting plate 111 is installed at the end of the steel wire rope 110. A hook 112 is installed on the lower surface of the mounting plate 111.

[0025] During the movement of the mobile trolley 101, when its brake fails and causes the mobile trolley 101 to move to the end of the track, the mobile trolley 101 will collide with the abutment plate 104. At this time, the moving speed of the mobile trolley 101 can be reduced through the buffering effect of the first hydraulic damping rod 103 and the first spring 105, and the abutment plate 104 is hit and shrinks inward. Through the setting of the transmission mechanism 200, the first cylinders 107 on both sides can be inflated at the same time. The gas entering the first cylinder 107 pushes the first piston rod 108 to move, and then drives the clamps 109 on both sides to be pressed against the two sides of the mobile trolley 101 at the same time. The two sides of the mobile trolley 101 are affected by the friction force of the clamps 109, so it can further slow down and stop moving. In addition, since the mobile trolley 101 is clamped by the two clamps 109, the thrust of the rebound after being compressed by the first spring 105 can be reduced, ensuring that the mobile trolley 101 can quickly be in a stable state and avoid the occurrence of safety accidents.

[0026] Specifically, the transmission mechanism 200 includes a second cylinder 201 installed on the surface of the fixed plate 102, a second piston rod 202 is arranged inside the second cylinder 201, and the end of the second piston rod 202 is connected to the abutment plate 104, and a connecting pipe 203 is connected between the second cylinder 201 and the first cylinder 107. When the abutment plate 104 is hit by the moving trolley 101, it drives the second piston rod 202 to move inside the second cylinder 201, and then pushes the air inside the second cylinder 201 into the connecting pipe 203 and into the first cylinder 107. After the first cylinder 107 is inflated, it pushes the first piston rod 108 to move outward, which can drive the clamping plate 109 and the moving trolley 101 to move outward. The side surface of the trolley 101 is pressed tightly to slow it down, and when the impact force of the moving trolley 101 is large, the stronger the clamping force of the clamping plate 109 on the moving trolley 101, the more obvious the deceleration effect. When the moving trolley 101 stops, the compressed first spring 105 releases the elastic force, thereby pushing the moving trolley 101 to move in the opposite direction. At this time, the second piston rod 202 gradually extends outward from the second cylinder 201, thereby gradually reducing the pressure inside the first cylinder 107, so that the clamping force of the clamping plate 109 on the side surface of the moving trolley 101 gradually decreases. In this process, part of the elastic force released by the first spring 105 can be offset, thereby enabling the moving trolley 101 to quickly be in a stable state.

[0027] Specifically, limiting rods 300 are installed on the outer surfaces of both sides of the clamp 109, and the ends of the limiting rods 300 extend through the other side of the side block 106. The limiting blocks 301 are installed on the ends of the limiting rods 300. When the clamp 109 clamps the side surface of the moving trolley 101, the first piston rod 108 is subjected to a lateral force. Therefore, the setting of the limiting rods 300 can offset the lateral force received by the first piston rod 108 and improve its structural strength.

[0028] Specifically, a rubber pad is disposed on the outer surface of the abutment plate 104 . The rubber pad can provide a certain buffering effect when the moving vehicle 101 collides with the abutment plate 104 , and can prevent the abutment plate 104 from being damaged.

[0029] Specifically, the outer surfaces of the second cylinder 201 and the second piston rod 202 are sleeved with a second spring 400, and the two ends of the second spring 400 are respectively abutted against the fixed plate 102 and the abutment plate 104. Through the setting of the second spring 400, when the abutment plate 104 is hit, the second spring 400 will be compressed, thereby further improving the buffering effect on the moving cart 101.

[0030] Specifically, side plates 500 are installed on both sides of the mounting plate 111, and a second hydraulic damping rod 501 is installed on the upper surface of the side plate 500. A top plate 502 is installed at the end of the telescopic end of the second hydraulic damping rod 501. A third spring 503 is sleeved on the outer surface of the second hydraulic damping rod 501, and the two ends of the third spring 503 are respectively abutted against the top plate 502 and the side plate 500. When the winch 113 drives the mounting plate 111 to rise to a too high height, the top plate 502 will contact the top of the bridge frame 100, and the arrangement of the second hydraulic damping rod 501 and the third spring 503 can play a buffering role to avoid the mounting plate 111 from colliding with the top of the bridge frame 100.

[0031] The above is a detailed description of the utility model in combination with specific embodiments, and it cannot be determined that the specific implementation methods of the utility model are limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, making several equivalent substitutions or obvious modifications without departing from the concept of the utility model, and having the same performance or use, should be regarded as belonging to the patent protection scope of the utility model determined by the submitted claims.

Claims

1. A buffer lifting device for crane equipment, comprising a bridge (100), characterized in that: A moving trolley (101) is arranged on the upper side of the bridge frame (100), and fixing plates (102) are installed at both ends of the upper side of the bridge frame (100). A first hydraulic damping rod (103) is installed on the side of the fixing plate (102) facing the moving trolley (101), and an abutment plate (104) is installed at the end of the telescopic end of the first hydraulic damping rod (103). A first spring (105) is sleeved on the outer surface of the first hydraulic damping rod (103), and the two ends of the first spring (105) are respectively abutted against the fixing plate (102) and the abutment plate (104); Two side blocks (106) are installed at both ends of the bridge frame (100) in the length direction, and the two side blocks (106) are arranged on both sides of the bridge frame (100) in the width direction. The opposite surfaces of the two side blocks (106) are installed with a first cylinder (107), a first piston rod (108) is arranged inside the first cylinder (107), and a clamping plate (109) is installed at the end of the first piston rod (108). A transmission mechanism (200) is arranged between the abutment plate (104) and the first cylinder (107), and the transmission mechanism (200) can inflate the first cylinder (107) when the abutment plate (104) is compressed. A hoist (113) is installed on the movable trolley (101), a steel wire rope (110) is wound around the hoist (113), a mounting plate (111) is installed at the end of the steel wire rope (110), and a hook (112) is installed on the lower surface of the mounting plate (111).

2. A buffer lifting device for crane equipment according to claim 1, characterized in that: The transmission mechanism (200) comprises a second cylinder (201) mounted on the surface of the fixed plate (102), a second piston rod (202) is arranged inside the second cylinder (201), and the end of the second piston rod (202) is connected to the abutment plate (104), and a connecting pipe (203) is connected between the second cylinder (201) and the first cylinder (107).

3. A buffer lifting device for crane equipment according to claim 2, characterized in that: Limiting rods (300) are installed on both side outer surfaces of the clamping plate (109), the end of the limiting rod (300) passes through the other side of the side block (106), and a limiting block (301) is installed on the end of the limiting rod (300).

4. A buffer lifting device for crane equipment according to claim 3, characterized in that: The outer surface of the abutment plate (104) is provided with a rubber pad.

5. The buffer lifting device for crane equipment according to claim 4, characterized in that: A second spring (400) is sleeved on the outer surfaces of the second cylinder (201) and the second piston rod (202), and two ends of the second spring (400) are respectively in contact with the fixing plate (102) and the contact plate (104).

6. The buffer lifting device for crane equipment according to claim 1, characterized in that: Side plates (500) are installed on both sides of the mounting plate (111); a second hydraulic damping rod (501) is installed on the upper surface of the side plate (500); a top plate (502) is installed at the end of the telescopic end of the second hydraulic damping rod (501); a third spring (503) is sleeved on the outer surface of the second hydraulic damping rod (501), and two ends of the third spring (503) are respectively in contact with the top plate (502) and the side plate (500).

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