Low-clearance end beam

Abstract

The utility model discloses a low clearance end beam, which relates to the technical field of cranes and particularly comprises a main body, two ends of the main body are rotatably connected with driving wheels, one end of each driving wheel is fixedly connected with a transmission chain wheel, the inner side of the main body is provided with a through groove, and the inner side of the through groove is provided with a chain. And the chain is in meshed connection with the two transmission chain wheels at the same time, a plurality of cavities distributed at equal intervals are formed in the bottom end of the inner side of the through groove, auxiliary chain wheels are rotationally connected to the inner sides of the multiple cavities, and the multiple auxiliary chain wheels are meshed with the chain at the same time. The transmission chain wheels at one ends of the two driving wheels can be connected through the chain, so that the two driving wheels can rotate at the same time when rotating, and the two driving wheels are provided with power sources, so that the bearing effect is better during use; and the transmission chain wheel can be supported through the multiple auxiliary chain wheels, and friction caused by contact between the transmission chain wheel and the bottom end of the through groove during working is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a low headroom end beam. Background Art

[0002] The end beam is an important structural component of a crane. Its main function is to bear the load of the main beam and move along the track. A low headroom end beam refers to an end beam with a relatively low structural height, which can achieve efficient material handling in a limited space.

[0003] A low headroom end beam of a crane disclosed in the utility model patent application publication specification CN207276054U of China. Although the centering wheels can clamp both sides of the truss to straighten the end beam, and at the same time, the telescopic springs can reduce the vibration generated during movement and reduce the risk of end beam deflection. However, this low headroom end beam of the crane still has the disadvantages that the number of driving wheels for device movement is single, and multiple power sources cannot be provided. Therefore, when moving under a large load, the starting effect is not good and unstable. In addition, it does not have the function of cleaning the traveling road surface, and if there are foreign objects on the traveling section, it will affect the rotation of the driving wheels and the movement of the device. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a low headroom end beam, which solves the problems put forward in the above background art.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model is realized through the following technical solutions: It includes a main body. Driving wheels are rotatably connected to both ends of the main body. Transmission sprockets are fixedly connected to one ends of the two driving wheels. A through groove is formed inside the main body. A chain is arranged inside the through groove. The chain is meshed with the two transmission sprockets at the same time. A plurality of cavities are formed at equal intervals at the bottom end inside the through groove. Auxiliary sprockets are rotatably connected to the inside of the plurality of cavities. The plurality of auxiliary sprockets are meshed with the chain at the same time. A gearbox is fixedly installed on one side of the main body. A fixed column is fixedly connected to the inside of the gearbox. One side of the fixed column penetrates and is rotatably connected to a double-layer gear. A driven gear is meshed with one side of the small gear end of the double-layer gear. A connecting piece is fixedly connected to the outer surface of the gearbox. The other end of the connecting piece is fixedly installed with a motor. One end of the output shaft of the motor is fixedly connected to a driving gear. One side of the driving gear is meshed with the large gear end of the double-layer gear. A connecting plate is fixedly connected to the upper surface of the main body.

[0008] Optionally, one end of the driven gear is fixedly connected to a transmission shaft, and the other end of the transmission shaft penetrates through the main body and is fixedly connected to a driving wheel.

[0009] Optionally, the number of the connecting members is two. The two connecting members are respectively fixedly connected to the gearbox and the motor, and the two connecting members are connected by bolts.

[0010] Optionally, brackets are symmetrically and fixedly connected to both ends of the main body. The inner sides of the other ends of the two brackets penetrate through and are rotatably connected to a rotating column.

[0011] Optionally, a cleaning roller is penetrated through and fixedly installed in the middle of the rotating column. A brush is arranged on the outer surface of the cleaning roller. A plurality of elastic plates are arranged inside the cleaning roller and are distributed in an annular array. The elastic plates are thin steel plates with a thickness of 3 mm, and the elastic plates are arranged in an S shape.

[0012] Optionally, one end of the rotating column is fixedly connected to a first belt pulley.

[0013] Optionally, a rotating shaft is penetrated through and rotatably connected to the inner side of one end of the bracket. A roller is fixedly connected to one end of the rotating shaft. The roller is made of rubber material, and the outer surface of the roller is in close contact with the driving wheel.

[0014] Optionally, a second belt pulley is fixedly connected to the other end of the rotating shaft, and a transmission belt is connected between the second belt pulley and the first belt pulley.

[0015] (III) Beneficial effects

[0016] The present utility model provides a low headroom end beam, which has the following beneficial effects:

[0017] 1. For this low headroom end beam, the transmission sprockets at one end of the two driving wheels can be connected through a chain, so that the two driving wheels can rotate simultaneously when the driving wheels rotate, and both of the two driving wheels have power sources. Therefore, the load-bearing effect is better during use. Through a plurality of auxiliary sprockets, the transmission sprockets can be supported to prevent the transmission sprockets from contacting the bottom end of the through groove and generating friction during operation.

[0018] 2. For this low headroom end beam, the roller contacts with the driving wheel, so that the roller can be driven to rotate when the driving wheel rotates. Through the transmission of the rotating shaft, the second belt pulley, the transmission belt and the first belt pulley, the cleaning roller can be driven to rotate, so that the path where the main body is about to travel can be cleaned, and foreign objects are prevented from affecting the rotation of the driving wheel. Description of the drawings

[0019] Figure 1 is a three-dimensional schematic diagram of the structure of the present utility model;

[0020] Figure 2This is the first cross-sectional schematic diagram of the structure of the present utility model;

[0021] Figure 3 This is the second cross-sectional schematic diagram of the structure of the present utility model;

[0022] Figure 4 This is the present utility model Figure 3 The enlarged schematic diagram of the structure in area A of the present utility model;

[0023] Figure 5 This is the present utility model Figure 2 The enlarged schematic diagram of the structure in area B of the present utility model;

[0024] Figure 6 This is the present utility model Figure 3 The enlarged schematic diagram of the structure in area C of the present utility model.

[0025] In the figure: 1, main body; 2, driving wheel; 3, transmission sprocket; 4, through groove; 5, chain; 6, cavity; 7, auxiliary sprocket; 8, gearbox; 9, fixed column; 10, double-layer gear; 11, driven gear; 12, connecting piece; 13, motor; 14, driving gear; 15, connecting plate; 16, bracket; 17, rotating column; 18, cleaning roller; 19, elastic plate; 20, first pulley; 21, rotating shaft; 22, roller; 23, second pulley; 24, transmission belt. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0027] Embodiment 1

[0028] Please refer to Figures 1 to 5, the present utility model provides a technical solution: a low headroom end beam, including a main body 1. Driving wheels 2 are rotatably connected to both ends of the main body 1. Transmission sprockets 3 are fixedly connected to one end of each of the two driving wheels 2. A through groove 4 is formed inside the main body 1. A chain 5 is arranged inside the through groove 4. The chain 5 is meshed with both transmission sprockets 3 at the same time. A plurality of cavities 6 are arranged at equal intervals at the inner bottom end of the through groove 4. Auxiliary sprockets 7 are rotatably connected inside each of the plurality of cavities 6. The plurality of auxiliary sprockets 7 are meshed with the chain 5 at the same time. A gearbox 8 is fixedly installed on one side of the main body 1. A fixed column 9 is fixedly connected inside the gearbox 8. One side of the fixed column 9 penetrates and is rotatably connected with a double-layer gear 10. A driven gear 11 is meshed with one side of the small gear end of the double-layer gear 10. A transmission shaft is fixedly connected to one end of the driven gear 11. The other end of the transmission shaft penetrates the main body 1 and is fixedly connected to the driving wheel 2. A connecting member 12 is fixedly connected to the outer surface of the gearbox 8. The number of the connecting members 12 is two. The two connecting members 12 are respectively fixedly connected to the gearbox 8 and the motor 13. The two connecting members 12 are connected by bolts, which can be connected and disassembled by bolts. The other end of the connecting member 12 is fixedly installed with a motor 13. A driving gear 14 is fixedly connected to one end of the output shaft of the motor 13. One side of the driving gear 14 is meshed with the large gear end of the double-layer gear 10. A connecting plate 15 is fixedly connected to the upper surface of the main body 1. The transmission sprockets 3 at one end of the two driving wheels 2 can be connected by the chain 5, so that the two driving wheels 2 can rotate simultaneously when rotating, and both of the two driving wheels 2 have power sources, so that the load-bearing effect can be better during use. The plurality of auxiliary sprockets 7 can support the transmission sprockets 3 to prevent the transmission sprockets 3 from contacting and rubbing against the bottom end of the through groove 4 during work. Power is provided by the motor 13 during use, so as to drive the driving gear 14, the double-layer gear 10 and the driven gear 11 to be meshed with each other, and then the power output by the motor 13 can be decelerated and then drive the driving wheel 2 to rotate. The two transmission sprockets 3 can be connected by the chain 5, so that the two driving wheels 2 can drive the main body 1 to move as power sources at the same time.

[0029] Embodiment 2

[0030] Please refer to Figure 6, the present utility model provides a technical solution: a low headroom end beam, wherein both ends of the main body 1 are symmetrically and fixedly connected with brackets 16. The inner sides of the other ends of the two brackets 16 are penetrated and rotatably connected with a rotating column 17. The middle of the rotating column 17 is penetrated and fixedly installed with a cleaning roller 18. The outer surface of the cleaning roller 18 is provided with a brush. A plurality of elastic plates 19 distributed in an annular array are arranged inside the cleaning roller 18. The elastic plates 19 are thin steel plates with a thickness of 3 mm. The elastic plates 19 are arranged in an S shape. The S-shaped arrangement can make it more telescopic, and then the cleaning roller 18 can be displaced during use, and then the contact effect with the road surface to be cleaned can be better. One end of the rotating column 17 is fixedly connected with a first belt pulley 20. The inner side of one end of the bracket 16 is penetrated and rotatably connected with a rotating shaft 21. One end of the rotating shaft 21 is fixedly connected with a roller 22. The roller 22 is made of rubber. The rubber-made roller 22 can have anti-slip and sound-proof effects while transmitting power. The outer surface of the roller 22 is closely attached to the driving wheel 2. The other end of the rotating shaft 21 is fixedly connected with a second belt pulley 23. A transmission belt 24 is connected in transmission between the second belt pulley 23 and the first belt pulley 20. By contacting the roller 22 with the driving wheel 2, the roller 22 can be driven to rotate when the driving wheel 2 rotates. Through the transmission of the rotating shaft 21, the second belt pulley 23, the transmission belt 24 and the first belt pulley 20, the cleaning roller 18 can be driven to rotate, so as to clean the path where the main body 1 is about to travel, and avoid foreign objects from affecting the rotation of the driving wheel 2. During use, power transmission can be realized by contacting the roller 22 with the driving wheel 2. Not only is no additional power source required, but also the rotation of the driving wheel 2 and the movement of the main body 1 can be synchronized. When the driving wheel 2 rotates, the second belt pulley 23 can be driven to rotate via the rotating shaft 21, and the first belt pulley 20 can be rotated via the transmission of the transmission belt 24, so that the cleaning roller 18 can be driven to work via the rotating column 17.

[0031] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A low headroom end beam, comprising a main body (1), characterized in that: Both ends of the main body (1) are rotatably connected with driving wheels (2). One end of each of the two driving wheels (2) is fixedly connected with a transmission sprocket (3). A through groove (4) is formed inside the main body (1). A chain (5) is arranged inside the through groove (4). The chain (5) is meshed with the two transmission sprockets (3) at the same time. A plurality of cavities (6) distributed at equal intervals are formed at the inner bottom end of the through groove (4). An auxiliary sprocket (7) is rotatably connected inside each of the plurality of cavities (6). The plurality of auxiliary sprockets (7) are meshed with the chain (5) at the same time. A gearbox (8) is fixedly installed on one side of the main body (1). A fixed column (9) is fixedly connected inside the gearbox (8). One side of the fixed column (9) penetrates and is rotatably connected with a double-layer gear (10). One side of the small gear end of the double-layer gear (10) is meshed with a driven gear (11). A connecting piece (12) is fixedly connected to the outer surface of the gearbox (8). The other end of the connecting piece (12) is fixedly installed with a motor (13). One end of the output shaft of the motor (13) is fixedly connected with a driving gear (14). One side of the driving gear (14) is meshed with the large gear end of the double-layer gear (10). A connecting plate (15) is fixedly connected to the upper surface of the main body (1).

2. The low headroom end beam according to claim 1, wherein: One end of the driven gear (11) is fixedly connected with a transmission shaft. The other end of the transmission shaft penetrates the main body (1) and is fixedly connected with the driving wheel (2).

3. The low headroom end beam according to claim 1, wherein: The number of the connecting pieces (12) is two. The two connecting pieces (12) are respectively fixedly connected with the gearbox (8) and the motor (13). The two connecting pieces (12) are connected by bolts.

4. A low headroom end beam according to claim 1, characterized in that: Both ends of the main body (1) are symmetrically and fixedly connected with brackets (16). The other ends of the two brackets (16) penetrate and are rotatably connected with a rotating column (17).

5. A low headroom end beam according to claim 4, characterized in that: A cleaning roller (18) is penetrated and fixedly installed in the middle of the rotating column (17). A brush is arranged on the outer surface of the cleaning roller (18). A plurality of elastic plates (19) distributed in an annular array are arranged inside the cleaning roller (18). The elastic plates (19) are thin steel plates with a thickness of 3 mm. The elastic plates (19) are arranged in an S shape.

6. The low headroom end beam according to claim 4, characterized in that: One end of the rotating column (17) is fixedly connected with a first belt pulley (20).

7. A low headroom end beam according to claim 4, characterized in that: One end of the bracket (16) penetrates and is rotatably connected with a rotating shaft (21). One end of the rotating shaft (21) is fixedly connected with a roller (22). The roller (22) is made of rubber material. The outer surface of the roller (22) is in close contact with the driving wheel (2).

8. A low headroom end beam according to claim 7, characterized in that: The other end of the rotating shaft (21) is fixedly connected with a second belt pulley (23). A transmission belt (24) is connected between the second belt pulley (23) and the first belt pulley (20) in a transmission manner.

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