Buffering anti-derailing device for crane

Abstract

The utility model belongs to the technical field of cranes, and particularly relates to a buffer anti-derailing device for a crane, which comprises a first connecting plate, a second connecting plate is arranged on the front side of the first connecting plate, two support boxes are fixedly mounted on the front side of the first connecting plate, and the front sides of the support boxes are fixedly connected with the rear side of the second connecting plate; a moving box is arranged between the two supporting boxes, a motor is fixedly installed on the inner wall of the bottom of the moving box, a first sliding rail mechanism and a second sliding rail mechanism are arranged in the supporting boxes, and a transmission mechanism is arranged between the moving box and the supporting boxes. According to the utility model, the design is reasonable, the second sliding rail mechanism and the first buffer mechanism are arranged, so that the rail wheels of the crane can be limited in the vertical direction, and the purpose of preventing the rail wheels of the crane from bouncing to cause derailing can be achieved; the purpose of buffering impact force in the front-back direction of the crane rail wheel can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a buffer anti-derailment device for cranes. Background Art

[0002] Lifting machinery refers to electromechanical equipment used for vertical lifting or vertical lifting and horizontal movement of heavy objects. Its scope is defined as elevators with a rated lifting capacity greater than or equal to 0.5t; cranes with a rated lifting capacity greater than or equal to 3t (or tower cranes with a rated lifting moment greater than or equal to 40t·m, or loading and unloading bridges with a productivity greater than or equal to 300t / h) and a lifting height greater than or equal to 2m.

[0003] At present, a kind of buffer anti-derail device for crane of the Chinese patent announcement of announcement number CN218025024U comprises crane rail, and the top of crane rail is meshed with crane rail wheel, and the outer edge of crane rail wheel is rotatably connected with crane support foot.The first clamping plate and the second clamping plate are sleeved on the outer edge of crane support foot by the first clamping plate and the second clamping plate, and the first clamping plate and the second clamping plate are fixed to the outer edge of crane support foot by connecting bolts, so that sliding assembly is contacted with crane rail both sides respectively, and the structure that the first clamping plate and the second clamping plate are sleeved on the outer edge of crane support foot is utilized, so that the fit and tightness between equipment and crane support foot are increased, so as to solve the crane in actual use, the force is very great, and when the crane appears to gnaw rail or derailment situation, the common fixing bolt is difficult to carry its impact force, and then the anti-derail device is separated from the crane support foot, and then the problem that the actual use effect of the anti-derail device is reduced.

[0004] It is found in actual use that the crane rail wheels in the existing cranes cannot be limited and buffered in the vertical direction. When the crane is lifting a heavy object, once the heavy object falls suddenly and unexpectedly, the crane rail wheels will bounce, causing the crane rail wheels to easily derail. There is a problem that the crane rail wheels cannot be limited and buffered in the vertical direction, which easily causes the crane rail wheels to bounce and derail. Therefore, we propose a buffer anti-derailment device for cranes to solve the above problem. Utility Model Content

[0005] The utility model aims to solve the problem in the prior art that the crane rail wheel cannot be limited and buffered in the vertical direction, which easily leads to the crane rail wheel bouncing and derailing, and proposes a buffer anti-derailing device for the crane.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A buffer anti-derail device for a crane comprises a first connecting plate, a second connecting plate is arranged on the front side of the first connecting plate, two supporting boxes are fixedly installed on the front side of the first connecting plate, and the front side of the supporting box is fixedly connected to the rear side of the second connecting plate; a moving box is arranged between the two supporting boxes, a motor is fixedly installed on the inner wall of the bottom of the moving box, a first slide rail mechanism and a second slide rail mechanism are arranged in the supporting box, a transmission mechanism is arranged between the moving box and the supporting box, second buffer mechanisms are arranged on the front and rear sides of the supporting boxes, through holes are opened on adjacent sides of the two supporting boxes, and a lifting device is arranged on the bottom of the moving box.

[0008] Preferably, the first slide rail mechanism includes a lower slide rail and a crane rail wheel. The lower slide rail is fixedly mounted on the inner wall of the bottom of the support box. The crane rail wheel is arranged on the lower slide rail. The crane rail wheel is rollingly connected to the lower slide rail.

[0009] Preferably, the second slide rail mechanism includes an upper slide rail and a connecting column. The connecting column is fixedly installed on the top inner wall of the support box. The upper slide rail is arranged above the crane rail wheel. A buffer cavity is opened in the upper slide rail. The top inner wall of the buffer cavity and the top of the upper slide rail are provided with the same column hole. The connecting column is slidably connected to the column hole, and a first buffer mechanism is arranged between the connecting column and the buffer cavity.

[0010] Preferably, the first buffer mechanism includes a top block and a first spring, the top block is slidably installed on the inner wall of the buffer cavity, driving the top of the top block to be fixedly connected with the bottom end of the connecting column, and the bottom of the top block and the bottom inner wall of the buffer cavity are fixedly installed with the same first spring.

[0011] Preferably, the transmission mechanism includes a transmission shaft and bearings, and the same transmission shaft is rotatably installed on the inner walls of both sides of the moving box, and both ends of the transmission shaft respectively extend into the corresponding support boxes, and bearings are fixedly installed at both ends of the transmission shaft. The crane rail wheel is fixedly sleeved on the bearings, the transmission shaft is adapted to the through hole, and a gear mechanism is arranged between the transmission shaft and the motor output shaft.

[0012] Preferably, the gear mechanism includes two conical wheels, and the transmission shaft and the motor output shaft are both fixedly mounted with conical wheels, and the two conical wheels are both located in the moving box, and the two conical wheels are meshed with each other.

[0013] Preferably, the second buffer mechanism includes a telescopic rod, a buffer plate and a second spring. The front inner wall and the rear inner wall of the support box are both provided with telescopic rods. The buffer plate is fixedly mounted on the output shaft of the telescopic rod. The second spring is sleeved on the telescopic rod. The two ends of the second spring are respectively fixedly connected to the buffer plate and the inner wall of the support box.

[0014] Beneficial effects of the utility model:

[0015] 1. Through the cooperation of the motor, two conical wheels, the transmission wheel, the bearing and the crane rail wheel, the motor can drive the crane rail wheel to rotate, and the crane rail wheel can roll on the lower slide rail, so as to achieve the purpose of transporting heavy objects;

[0016] 2. Through the cooperation of the connecting column, the top block, the first spring and the upper slide rail, when the crane rail wheel 7 bounces, the first spring can be driven to contract. The elastic force of the first spring can keep the upper slide rail always in close contact with the crane rail wheel, so that the upper slide rail can squeeze the top of the crane rail wheel, limit the crane rail wheel in the vertical direction, and avoid derailment caused by the bouncing of the crane rail wheel.

[0017] 3. Through the cooperation of the buffer plate, the telescopic rod and the second spring, when the crane rail wheel collides with the buffer plate, the second spring can be driven to contract, thereby offsetting the impact force, and the impact force can be unloaded through the telescopic rod, thereby achieving the purpose of buffering the impact force in the front and rear directions of the crane rail wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a buffer anti-derailment device for a crane proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the main cross-sectional structure of a buffer anti-derailment device for a crane proposed in the utility model;

[0020] Figure 3 A schematic diagram of the side cross-sectional structure of a buffer anti-derailment device for a crane proposed in the utility model;

[0021] Figure 4 This is a schematic structural diagram of part A of a buffer anti-derailment device for a crane proposed in the utility model;

[0022] Figure 5 The utility model is a schematic structural diagram of the B part of a buffer anti-derailment device for a crane.

[0023] In the figure: 1. first connecting plate; 2. second connecting plate; 3. supporting box; 4. moving box; 5. motor; 6. lower slide rail; 7. crane rail wheel; 8. upper slide rail; 9. buffer chamber; 10. top block; 11. connecting column; 12. first spring; 13. transmission shaft; 14. bearing; 15. conical wheel; 16. through hole; 17. telescopic rod; 18. buffer plate; 19. second spring; 20. lifting device. DETAILED DESCRIPTION

[0024] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0026] Reference Figure 1-5 A buffer anti-derail device for a crane comprises a first connecting plate 1, a second connecting plate 2 is arranged on the front side of the first connecting plate 1, two supporting boxes 3 are fixedly installed on the front side of the first connecting plate 1, and the front side of the supporting box 3 is fixedly connected to the rear side of the second connecting plate 2; a moving box 4 is arranged between the two supporting boxes 3, a motor 5 is fixedly installed on the inner wall of the bottom of the moving box 4, a first slide rail mechanism and a second slide rail mechanism are arranged in the supporting box 3, a transmission mechanism is arranged between the moving box 4 and the supporting box 3, a second buffer mechanism is arranged on the front and rear sides of the supporting box 3, through holes 16 are opened on adjacent sides of the two supporting boxes 3, and a lifting device 20 is arranged on the bottom of the moving box 4.

[0027] In this embodiment, the first slide rail mechanism includes a lower slide rail 6 and a crane rail wheel 7. The lower slide rail 6 is fixedly installed on the inner wall at the bottom of the support box 3. The crane rail wheel 7 is arranged on the lower slide rail 6. The crane rail wheel 7 is rollingly connected to the lower slide rail 6. By providing the first slide rail mechanism, the crane rail wheel 7 can roll on the lower slide rail 6, thereby achieving the purpose of transporting heavy objects.

[0028] In this embodiment, the second slide rail mechanism includes an upper slide rail 8 and a connecting column 11. The connecting column 11 is fixedly installed on the top inner wall of the support box 3. The upper slide rail 8 is arranged above the crane rail wheel 7. A buffer cavity 9 is opened in the upper slide rail 8. The top inner wall of the buffer cavity 9 and the top of the upper slide rail 8 are provided with the same column hole. The connecting column 11 is slidably connected with the column hole. A first buffer mechanism is arranged between the connecting column 11 and the buffer cavity 9. By arranging the second slide rail mechanism, the crane rail wheel 7 can roll under the upper slide rail 8.

[0029] In this embodiment, the first buffer mechanism includes a top block 10 and a first spring 12. The top block 10 is slidably installed on the inner wall of the buffer cavity 9, driving the top of the top block 10 to be fixedly connected with the bottom end of the connecting column 11. The bottom of the top block 10 and the bottom inner wall of the buffer cavity 9 are fixedly installed with the same first spring 12. By providing the first buffer mechanism, the first spring 12 can keep the upper slide rail 8 always in close contact with the crane rail wheel 7 through elastic force, so that the upper slide rail 8 can squeeze the upper part of the crane rail wheel 7, and the purpose of limiting the crane rail wheel 7 in the vertical direction can be achieved.

[0030] In this embodiment, the transmission mechanism includes a transmission shaft 13 and bearings 14. The same transmission shaft 13 is rotatably installed on the inner walls of both sides of the moving box 4. Both ends of the transmission shaft 13 extend into the corresponding supporting box 3 respectively. Bearings 14 are fixedly installed at both ends of the transmission shaft 13. The crane rail wheel 7 is fixedly sleeved on the bearing 14. The transmission shaft 13 is adapted to the through hole 16. A gear mechanism is arranged between the transmission shaft 13 and the output shaft of the motor 5. By providing the transmission mechanism, the transmission shaft 13 can drive the bearing 14 to rotate, thereby achieving the purpose of driving the crane rail wheel 7 to rotate.

[0031] In this embodiment, the gear mechanism includes two conical wheels 15, and the conical wheels 15 are fixedly installed on the transmission shaft 13 and the output shaft of the motor 5. The two conical wheels 15 are both located in the moving box 4, and the two conical wheels 15 are meshed with each other. By providing a gear mechanism, the motor 5 can drive the transmission shaft 13 to rotate.

[0032] In this embodiment, the second buffer mechanism includes a telescopic rod 17, a buffer plate 18 and a second spring 19. The front inner wall and the rear inner wall of the support box 3 are both provided with the telescopic rod 17. The buffer plate 18 is fixedly installed on the output shaft of the telescopic rod 17. The second spring 19 is sleeved on the telescopic rod 17. The two ends of the second spring 19 are respectively fixedly connected to the buffer plate 18 and the inner wall of the support box 3. By providing the second buffer mechanism, the second spring 19 can offset the impact force of the crane rail wheel 7, and the impact force can be unloaded through the telescopic rod 17, so as to achieve the purpose of buffering the impact force in the front and rear directions of the crane rail wheel 7.

[0033] In the utility model, when in use, firstly, the two support boxes 3 are fixed on the lifting frame through the first connecting plate 1 and the second connecting plate 2, and can be connected to the lifting equipment through the lifting device 20, and the two conical wheels 15 can be driven to rotate simultaneously by starting the motor 5, which can drive the transmission shaft 13 to rotate, can drive the bearing 14 to rotate, can drive the crane rail wheel 7 to rotate, can realize the crane rail wheel 7 to roll on the lower slide rail 6, can realize the purpose of transporting heavy objects, and when the crane rail wheel 7 bounces, it can drive the upper slide rail 8 to move upward, which can drive the first spring 1 2 is contracted, and the elastic force of the first spring 12 can keep the upper slide rail 8 always in close contact with the crane rail wheel 7, so that the upper slide rail 8 can squeeze the upper part of the crane rail wheel 7, and the purpose of limiting the crane rail wheel 7 in the vertical direction can be achieved, and the purpose of preventing the crane rail wheel 7 from bouncing and causing derailment can be achieved. When the crane rail wheel 7 collides with the buffer plate 18, the second spring 19 can be driven to contract, and the impact force can be offset. The impact force can be unloaded by the telescopic rod 17, and the purpose of buffering the impact force in the front and rear directions of the crane rail wheel 7 can be achieved.

[0034] A kind of buffer anti-derail device for crane provided by the utility model is introduced in detail above. Specific embodiments are applied herein to explain the principle and implementation mode of the utility model, and the description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in the technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the protection scope of the claims of the utility model.

Claims

1. A buffer anti-derailment device for a crane, It is characterized in that It comprises a first connecting plate (1), a second connecting plate (2) being arranged on the front side of the first connecting plate (1), two supporting boxes (3) being fixedly mounted on the front side of the first connecting plate (1), and the front side of the supporting boxes (3) being fixedly connected to the rear side of the second connecting plate (2); A moving box (4) is arranged between the two supporting boxes (3); a motor (5) is fixedly mounted on the inner wall of the bottom of the moving box (4); a first slide rail mechanism and a second slide rail mechanism are arranged in the supporting box (3); a transmission mechanism is arranged between the moving box (4) and the supporting box (3); a second buffer mechanism is arranged on the front and rear sides of the supporting box (3); a through hole (16) is opened on the adjacent sides of the two supporting boxes (3); and a lifting device (20) is arranged at the bottom of the moving box (4).

2. A buffer anti-derailment device for a crane according to claim 1, It is characterized in that The first slide rail mechanism comprises a lower slide rail (6) and a crane rail wheel (7); the lower slide rail (6) is fixedly mounted on the inner wall of the bottom of the support box (3); the crane rail wheel (7) is arranged on the lower slide rail (6); and the crane rail wheel (7) is rollingly connected to the lower slide rail (6).

3. A buffer anti-derailment device for a crane according to claim 2, It is characterized in that The second slide rail mechanism comprises an upper slide rail (8) and a connecting column (11); the connecting column (11) is fixedly mounted on the top inner wall of the support box (3); the upper slide rail (8) is arranged above the crane rail wheel (7); a buffer cavity (9) is provided in the upper slide rail (8); the top inner wall of the buffer cavity (9) and the top of the upper slide rail (8) are provided with the same column hole; the connecting column (11) is slidably connected to the column hole; and a first buffer mechanism is provided between the connecting column (11) and the buffer cavity (9).

4. A buffer anti-derailment device for a crane according to claim 3, It is characterized in that The first buffer mechanism comprises a top block (10) and a first spring (12); the top block (10) is slidably mounted on the inner wall of the buffer cavity (9), driving the top of the top block (10) to be fixedly connected to the bottom end of the connecting column (11); the bottom of the top block (10) and the bottom inner wall of the buffer cavity (9) are fixedly mounted with the same first spring (12).

5. A buffer anti-derailment device for a crane according to claim 2, It is characterized in that The transmission mechanism comprises a transmission shaft (13) and a bearing (14); the inner walls of both sides of the moving box (4) are rotatably mounted with the same transmission shaft (13); both ends of the transmission shaft (13) extend into corresponding support boxes (3) respectively; bearings (14) are fixedly mounted at both ends of the transmission shaft (13); the crane rail wheel (7) is fixedly sleeved on the bearing (14); the transmission shaft (13) is matched with the through hole (16); and a gear mechanism is arranged between the transmission shaft (13) and the output shaft of the motor (5).

6. A buffer anti-derailment device for a crane according to claim 5, It is characterized in that The gear mechanism comprises two conical wheels (15), the transmission shaft (13) and the output shaft of the motor (5) are both fixedly mounted with conical wheels (15), the two conical wheels (15) are both located in the moving box (4), and the two conical wheels (15) are meshed with each other.

7. A buffer anti-derailment device for a crane according to claim 1, It is characterized in that The second buffer mechanism comprises a telescopic rod (17), a buffer plate (18) and a second spring (19); the front inner wall and the rear inner wall of the support box (3) are both provided with a telescopic rod (17); the buffer plate (18) is fixedly mounted on an output shaft of the telescopic rod (17); the second spring (19) is sleeved on the telescopic rod (17); and two ends of the second spring (19) are respectively fixedly connected to the buffer plate (18) and the inner wall of the support box (3).

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