Single-beam bridge crane with anti-collision mechanism

Abstract

The utility model discloses a single-beam bridge crane with an anti-collision mechanism, which belongs to the technical field of cranes and comprises a moving beam, a moving seat, a driving mechanism and an electric hoist, the first anti-collision mechanism is arranged on the bottom surface of the moving beam and positioned on the inner side of the driving mechanism, and second anti-collision mechanisms are arranged at two ends of the electric hoist; the first anti-collision mechanism comprises a fixed box, a mounting plate, a damping spring, a damper and an anti-collision plate; the second anti-collision mechanism comprises a fixing piece, a fixing plate, a top plate, an air bag, an air pump, an air inlet pipe, an air outlet pipe, a connecting pipe, a spring and a baffle. The first anti-collision mechanisms are installed on the two sides of the bottom face of the movable beam, the second anti-collision mechanisms are installed at the two ends of the electric hoist, when collision occurs, collision force is buffered through structures on the first anti-collision mechanisms and the second anti-collision mechanisms, impact force generated in the collision process can be better absorbed and buffered, and the collision safety is improved. Damage to the electric hoist and the moving beam caused by collision is prevented, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a single-beam bridge crane with an anti-collision mechanism. Background Art

[0002] Single-beam bridge crane is a lifting equipment that is horizontally mounted above workshops, warehouses and material yards to lift materials. Because its two ends are located on tall concrete columns or metal brackets, it is shaped like a bridge. The bridge of the single-beam bridge crane runs longitudinally along the tracks laid on the elevated platforms on both sides, which can make full use of the space under the bridge to lift materials without being hindered by ground equipment. It is the most widely used and largest type of lifting machinery. When the trolley runs horizontally along the track laid on the bridge, the operator needs to pre-judge the speed and position of the trolley. When the trolley is about to hit the end of the bridge, it relies on manual observation and control of the brake system. Once the operator is not focused or operates improperly, it will cause a collision accident, causing serious damage to the crane. Utility Model Content

[0003] The utility model aims to provide a single-beam bridge crane with an anti-collision mechanism to solve the problem that when the lifting trolley runs horizontally along a track laid on the bridge, it may collide with the end of the bridge and cause damage to the crane.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] The utility model discloses a single-beam bridge crane with an anti-collision mechanism, comprising a moving beam, two ends of the moving beam are provided with moving seats, the moving seats are slidably arranged on a track on the top of a bracket, the moving seat is provided with a driving mechanism for driving the moving seat to move along the track, the moving beam is provided with an electric hoist, a first anti-collision mechanism is provided on the bottom surface of the moving beam and located on the inner side of the driving mechanism, and two ends of the electric hoist are provided with a second anti-collision mechanism;

[0006] The first anti-collision mechanism comprises a fixed box, the fixed box is arranged on the bottom surface of the moving beam, a mounting plate is arranged inside the fixed box, a plurality of damping springs and a plurality of dampers are arranged on the mounting plate, and an anti-collision plate is arranged on the other side of the plurality of damping springs and the plurality of dampers;

[0007] The second anti-collision mechanism includes a fixing part, which is arranged at the end of the electric hoist, a fixing plate is arranged on the outer side of the fixing part, a top plate is arranged on the top surface of the fixing plate, an airbag is arranged on the outer side of the fixing plate, an air inlet pipe and an air outlet pipe are arranged on the top surface of the airbag, an air pump is arranged on the bottom surface of the top plate, the air pump is connected with the air inlet pipe, a connecting pipe is arranged on the top surface of the air outlet pipe, an air vent connected with the air outlet pipe is arranged inside the connecting pipe, a movable groove is opened on the inner wall of the air vent, and a spring and a baffle are arranged inside the movable groove.

[0008] Furthermore, the plurality of damping springs are evenly distributed around the circumference, and the plurality of dampers are evenly distributed around the circumference.

[0009] Furthermore, the number of the damping springs is set to six, the number of the dampers is set to three, and the three dampers are evenly arranged between the six damping springs.

[0010] Furthermore, mounting seats are provided on the opposite surfaces of the mounting plate and the anti-collision plate, and the two ends of the damper are respectively provided on the two mounting seats which are arranged opposite to each other.

[0011] Furthermore, a buffer block is arranged on the outer side of the anti-collision plate.

[0012] Furthermore, the fixing member includes a body, which is configured as a ring structure with an opening at one end, a connecting ear is provided at the opening of the body, two connecting ears are connected together by bolts, and a plurality of connecting plates are provided on the side of the body.

[0013] Furthermore, the diameter of the cross section of the baffle is larger than the diameter of the vent hole, the diameter of the cross section of the baffle is smaller than the diameter of the movable groove, and the bottom surface of the baffle fits with the bottom surface of the movable groove.

[0014] Furthermore, a conductive sheet and a metal spring are disposed on the top surface of the top plate, the metal spring is disposed directly above the vent hole, and the conductive sheet and the metal spring are electrically connected to the control device.

[0015] Compared with the prior art, the beneficial technical effects of the utility model are:

[0016] The utility model has first anti-collision mechanisms installed on both sides of the bottom surface of the movable beam, and second anti-collision mechanisms installed on both ends of the electric hoist. When a collision occurs, the impact force is buffered by the structures on the first anti-collision mechanism and the second anti-collision mechanism, which can better absorb and buffer the impact force during the collision, prevent the electric hoist and the movable beam from being damaged by the collision, and extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 This is a front view of a single-beam bridge crane with an anti-collision mechanism according to the utility model;

[0019] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the mounting plate, damping spring and mounting seat of the utility model;

[0021] Figure 4 for Figure 1 The enlarged view of point B in the middle;

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the fixing member of the utility model;

[0023] Figure 6 It is a side view of the airbag, strap, air inlet pipe, air pump, air outlet pipe and connecting pipe of the utility model;

[0024] Figure 7 for Figure 6 Enlarged view of point C in the middle.

[0025] Explanation of the accompanying drawings: 1. moving beam; 2. moving seat; 3. bracket; 4. track; 5. driving mechanism; 6. electric hoist; 7. first anti-collision mechanism; 7-1. fixed box; 7-2. mounting plate; 7-3. damping spring; 7-4. damper; 7-5. anti-collision plate; 7-6. buffer block; 7-7. mounting seat; 8. second anti-collision mechanism; 8-1. fixing part; 8-1-1. main body; 8-1-2. connecting ear; 8-1-3. connecting plate; 8-2. fixing plate; 8-3. top plate; 8-4. airbag; 8-5. strap; 8-6. air inlet pipe; 8-7. air pump; 8-8. air outlet pipe; 8-9. connecting pipe; 8-9-1. vent hole; 8-9-2. moving groove; 8-10. spring; 8-11. baffle; 9. metal spring; 10. conductive sheet. DETAILED DESCRIPTION

[0026] like Figure 1-7As shown, a single-beam bridge crane with an anti-collision mechanism comprises a moving beam 1, wherein both ends of the moving beam 1 are connected to a moving seat 2, wherein rollers are installed in the moving seat 2, and wherein the rollers move along a track 4 on the top of a bracket 3, and wherein a driving mechanism 5 for driving the moving seat 2 to move along the track 4 is arranged on the moving seat 2, wherein the driving mechanism 5 comprises a motor, wherein the motor is installed on the moving seat 2, and wherein the motor drives the rollers to move along the track 4, and an electric hoist 6 is installed on the moving beam 1, wherein the moving beam 1, the moving seat 2, the driving mechanism 5 and the electric hoist 6 are all prior arts, and their specific structures, working principles and methods are not described in detail herein; a first anti-collision mechanism 7 is installed on the bottom surface of the moving beam 1 and on the inner side of the driving mechanism 5, and a second anti-collision mechanism 8 is installed at both ends of the electric hoist 6.

[0027] like Figure 2 , 3 As shown, the first anti-collision mechanism 7 includes a fixed box 7-1, the fixed box 7-1 is connected to the bottom surface of the moving beam 1, the fixed box 7-1 is connected to the inside of the mounting plate 7-2, a plurality of damping springs 7-3 and a plurality of dampers 7-4 are installed on the mounting plate 7-2, an anti-collision plate 7-5 is arranged on the other side of the plurality of damping springs 7-3 and the plurality of dampers 7-4, the anti-collision plate 7-5 extends from an opening on one side of the fixed box 7-1, a plurality of buffer blocks 7-6 are connected to the outside of the anti-collision plate 7-5, the surface of the buffer block 7-6 is arranged in an arc shape, which can better disperse the impact force and absorb absorb energy; a number of the damping springs 7-3 are evenly distributed around the circumference, a number of the dampers 7-4 are evenly distributed around the circumference, the number of the damping springs 7-3 is set to six, the number of the dampers 7-4 is set to three, and the three dampers 7-4 are evenly arranged between the six damping springs 7-3; mounting seats 7-7 are connected to the opposite surfaces of the mounting plate 7-2 and the anti-collision plate 7-5, and the two ends of the damper 7-4 are respectively mounted on the two oppositely arranged mounting seats 7-7; by arranging the damping springs 7-3 and the dampers 7-4, the impact force during the collision can be better absorbed and buffered.

[0028] like Figure 4 , 5As shown in , 6 and 7, the second anti-collision mechanism 8 includes a fixing member 8-1, and the fixing member 8-1 includes a main body 8-1-1. The main body 8-1-1 is set to a ring structure with an opening at one end. A connecting ear 8-1-2 is connected to the opening of the main body 8-1-1. The main body 8-1-1 is sleeved on the end of the electric hoist 6. The two connecting ears 8-1-2 are connected together by bolts, so that the main body 8-1-1 is installed on the electric hoist 6. Three connecting plates 8-1-3 are connected to the side of the main body 8-1-1. The connecting plate 8-1-3 on the outer side of the fixing member 8-1 is connected to the fixing plate 8-2 by bolts. The top surface of the fixing plate 8-2 is connected to the top plate 8-3. The outer side of the fixing plate 8-2 is connected to the airbag 8-4 by a strap 8-5. The top surface of the airbag 8-4 is connected to the air inlet pipe 8-6 and the air outlet pipe 8-8. An air pump 8-7 is installed on the bottom surface of the top plate 8-3, and the air pump 8-7 is connected to the air inlet pipe 8-6. By setting the air pump 8-7, the air in the airbag 8-4 can be replenished with gas in time to maintain the gas pressure of the airbag 8-4, thereby maintaining the cushioning effect of the airbag 8-4; the top surface of the outlet pipe 8-8 is connected with a connecting pipe 8-9, and the connecting pipe 8-9 is provided with an air vent 8-9-1 connected to the outlet pipe 8-8 inside, and a movable groove 8-9-2 is provided on the inner wall of the air vent 8-9-1, and a spring 8-10 and a baffle 8-11 are provided inside the movable groove 8-9-2, and the baffle 8-11 is connected to the bottom of the spring 8-10, and the diameter of the cross section of the baffle 8-11 is larger than the diameter of the air vent 8-9-1 and smaller than the diameter of the movable groove 8-9-2, and the bottom surface of the baffle 8-11 fits with the bottom surface of the movable groove 8-9-2.

[0029] When the airbag 8-4 collides, the airbag 8-4 will be deformed and its volume will decrease, causing the internal air pressure to increase. At this time, under the action of the air pressure, the baffle 8-11 is lifted up and the spring 8-10 is compressed. At this time, the gas in the airbag 8-4 will flow out from the gap between the baffle 8-11 and the movable groove 8-9-2 to the vent 8-9-1, and then be discharged from the vent 8-9-1; through this arrangement, the impact force of the obstacle on the airbag 8-4 during the collision is first converted into a deformation force that causes the airbag 8-4 to deform, and then converted into air pressure, and then converted from air pressure into gas power, thereby reducing the pressure on the airbag 8-4 and reducing the deformation degree of the airbag 8-4, thereby reducing the rebound of the electric hoist 6 and the airbag 8-4 caused by the air pressure push, and reducing the shaking amplitude of the electric hoist 6.

[0030] The pressure of the spring 8-10 on the baffle 8-11 is equal to the pressure difference between the inside and outside of the airbag 8-4. Specifically, when the airbag 8-4 contacts an obstacle and deforms, the pressure difference between the inside and outside of the airbag 8-4 will be greater than the pressure of the spring 8-10, and the baffle 8-11 will rise and start to exhaust. With this setting, the sensitivity of the baffle 8-11 can be improved to quickly respond to obstacles.

[0031] When the electric hoist 6 encounters an obstacle and collides with it during operation, the airbag 8-4 will first contact the obstacle, and the deformable characteristic of the airbag 8-4 will be used to buffer the electric hoist 6. After the airbag 8-4 is deformed, it will apply elastic force to the electric hoist 6, so that the speed of the electric hoist 6 is reduced, thereby reducing the speed of the electric hoist 6 when it collides with the obstacle, reducing the impact force received by the electric hoist 6, reducing the probability of damage to the electric hoist 6, and also reducing the shaking degree of the electric hoist 6, so that the heavy objects hoisted by the electric hoist 6 are not easy to fall off. By connecting the airbag 8-4 to the electric hoist 6, the deformable characteristic of the airbag 8-4 is used to provide a buffer between the electric hoist 6 and the obstacle, reducing the impact force received by the electric hoist 6, reducing the probability of damage to the electric hoist 6 due to collision, bringing convenience to the staff, and reducing the probability of the heavy objects hoisted by the electric hoist 6 falling off.

[0032] The top surface of the top plate 8-3 is provided with a conductive sheet 10 and a metal spring sheet 9, and the metal spring sheet 9 is arranged just above the vent hole 8-9-1, and the conductive sheet 10 and the metal spring sheet 9 are electrically connected to the control device; when the vent hole 8-9-1 discharges gas outward, the gas will be sprayed onto the metal spring sheet 9, causing the metal spring sheet 9 to deform and connect with the conductive sheet 10, thereby sending a signal to the control device to stop the power of the electric hoist 6 and start the deceleration device, which can also provide a warning for the staff. Through this arrangement, when the electric hoist 6 encounters an obstacle, it can automatically stop and slow down to prevent the staff from reacting in time. The decelerated electric hoist 6 also reduces the collision force, further reducing the damage caused by the collision.

[0033] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A single-beam bridge crane with an anti-collision mechanism, comprising a moving beam (1), wherein both ends of the moving beam (1) are provided with moving seats (2), wherein the moving seat (2) is slidably arranged on a track (4) on the top of a bracket (3), wherein the moving seat (2) is provided with a driving mechanism (5) for driving the moving seat (2) to move along the track (4), and wherein the moving beam (1) is provided with an electric hoist (6), wherein the characteristics are: A first anti-collision mechanism (7) is provided on the bottom surface of the moving beam (1) and located inside the driving mechanism (5), and second anti-collision mechanisms (8) are provided at both ends of the electric hoist (6); The first anti-collision mechanism (7) comprises a fixed box (7-1), the fixed box (7-1) is arranged on the bottom surface of the moving beam (1), a mounting plate (7-2) is arranged inside the fixed box (7-1), a plurality of damping springs (7-3) and a plurality of dampers (7-4) are arranged on the mounting plate (7-2), and an anti-collision plate (7-5) is arranged on the other side of the plurality of damping springs (7-3) and the plurality of dampers (7-4); The second anti-collision mechanism (8) comprises a fixing member (8-1), the fixing member (8-1) being arranged at the end of the electric hoist (6), a fixing plate (8-2) being arranged on the outer side of the fixing member (8-1), a top plate (8-3) being arranged on the top surface of the fixing plate (8-2), an air bag (8-4) being arranged on the outer side of the fixing plate (8-2), an air inlet pipe (8-6) and an air outlet pipe (8-8) being arranged on the top surface of the air bag (8-4), and a bottom surface of the top plate (8-3) An air pump (8-7) is provided, the air pump (8-7) is connected to the air inlet pipe (8-6), a connecting pipe (8-9) is provided on the top surface of the air outlet pipe (8-8), a vent hole (8-9-1) connected to the air outlet pipe (8-8) is provided inside the connecting pipe (8-9), a movable groove (8-9-2) is provided on the inner wall of the vent hole (8-9-1), and a spring (8-10) and a baffle (8-11) are provided inside the movable groove (8-9-2).

2. The single-beam bridge crane with an anti-collision mechanism according to claim 1, characterized in that: The plurality of damping springs (7-3) are evenly distributed around the circumference, and the plurality of dampers (7-4) are evenly distributed around the circumference.

3. The single-beam bridge crane with an anti-collision mechanism according to claim 2, characterized in that: The number of the damping springs (7-3) is set to six, the number of the dampers (7-4) is set to three, and the three dampers (7-4) are evenly arranged between the six damping springs (7-3).

4. The single-beam bridge crane with an anti-collision mechanism according to claim 1, characterized in that: Mounting seats (7-7) are arranged on the opposite surfaces of the mounting plate (7-2) and the anti-collision plate (7-5), and the two ends of the damper (7-4) are respectively arranged on two mounting seats (7-7) arranged opposite to each other.

5. The single-beam bridge crane with an anti-collision mechanism according to claim 1, characterized in that: A buffer block (7-6) is arranged on the outer side of the anti-collision plate (7-5).

6. The single-beam bridge crane with an anti-collision mechanism according to claim 1, characterized in that: The fixing member (8-1) comprises a main body (8-1-1), the main body (8-1-1) is arranged as a ring structure with one end open, a connecting ear (8-1-2) is arranged at the opening of the main body (8-1-1), two connecting ears (8-1-2) are connected together by bolts, and a plurality of connecting plates (8-1-3) are arranged on the side of the main body (8-1-1).

7. The single-beam bridge crane with an anti-collision mechanism according to claim 1, characterized in that: The diameter of the cross section of the baffle plate (8-11) is greater than the diameter of the vent hole (8-9-1), the diameter of the cross section of the baffle plate (8-11) is smaller than the diameter of the movable groove (8-9-2), and the bottom surface of the baffle plate (8-11) fits the bottom surface of the movable groove (8-9-2).

8. The single-beam bridge crane with an anti-collision mechanism according to claim 1, characterized in that: The top surface of the top plate (8-3) is provided with a conductive sheet (10) and a metal spring sheet (9), the metal spring sheet (9) is arranged directly above the vent hole (8-9-1), and the conductive sheet (10) and the metal spring sheet (9) are electrically connected to the control device.

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