Steel wire rope electric hoist with stable structure
By introducing transmission components and limit components into the electric hoist, the shaking problem caused by uneven beam tracks is solved, the stability of the equipment is enhanced and the safety and efficiency of lifting are improved.
Patent Information
- Application Number
- CN202421057552.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-15
AI Technical Summary
When existing small electric hoists are used on cross beams, due to uneven rails of cross beams or bending and deforming, the wire ropes are subjected to uneven force, causing unstable shaking of the electric hoist, affecting the lifting efficiency and threatening safety.
A wire rope electric hoist with stable structure is designed, using transmission assembly and limit assembly, and the push block drives the push block to apply force to the limit assembly, ensuring that the main roller and driven wheel remain stable on the cross beam, prevent shaking, and when needed Cancel the limit for easy movement.
It effectively enhances the stability of the electric hoist, prevents track wear and cargo drop, and improves lifting safety and efficiency.
Smart Images
Figure CN222273968U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric hoists, in particular to a steel wire rope electric hoist with a stable structure. Background Art
[0002] Electric hoist is a special lifting equipment with a stable structure of steel wire rope electric hoist, which is installed on overhead crane and gantry crane. Electric hoist has the characteristics of small size, light weight, simple operation and convenient use. It is used in industrial and mining enterprises, warehouses, docks and other places. Electric hoist has a compact structure, and the motor axis is perpendicular to the drum axis. Electric hoist adopts worm gear transmission device. Its disadvantages are: large length and width, bulky structure, low mechanical efficiency, difficult processing, etc. The hydraulic system is dual-controlled, and the overflow regulating valve and magnetic contact pressure gauge can accurately control the pressure. The electrical control department adopts low-voltage control to increase the safety of the control system. Most electric hoists are installed on the beam and run on the beam, and the motor drives the gear-driven roller to move on the beam. Some small electric hoists do not have a motor to drive them to move, and they drive the gear-driven roller to move by manually pulling the chain.
[0003] When most of the existing small electric hoists are installed on the beam for use, due to the long-term use of the beam, the beam track is uneven, bent, deformed and damaged, or the goods hoisted by the electric hoist cause the wire rope to be unevenly stressed, causing the wire rope to exert pressure on the hoist body on both sides. In addition, the rollers on the electric hoist are connected to the beam in a rolling manner, and its structural stability is poor, which causes the electric hoist to shake when it is not stationary on the beam. The unstable shaking of the electric hoist will cause the hoisted heavy objects to shake, affecting the lifting efficiency or further wearing the track. In severe cases, the heavy objects may even fall and threaten the lives of the workers.
[0004] Therefore, a steel wire rope electric hoist with stable structure is proposed. Utility Model Content
[0005] The purpose of the utility model is to provide a steel wire rope electric hoist with a stable structure, so as to solve the problem proposed in the above background technology that when most of the existing small electric hoists are installed on a beam for use, due to the long-term use of the beam, the beam track is uneven, bent, deformed and damaged, or the goods hoisted by the electric hoist cause the steel wire rope to be unevenly stressed, resulting in the steel wire rope applying pressure to the hoist body on both sides, and the rollers on the electric hoist are in a rolling connection with the beam, and its structural stability is poor, which causes the electric hoist to shake when it is not stationary on the beam. The unstable shaking of the electric hoist will cause the hoisted heavy objects to shake, affecting the hoisting efficiency or further wearing the track. In severe cases, the heavy objects may even fall and threaten the lives of the workers.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a structurally stable wire rope electric hoist, comprising an electric hoist body, a driving assembly arranged on the top of the electric hoist body and a chain arranged in the driving assembly, a support plate is fixedly installed on the top of the electric hoist body, and the driving assembly is arranged on one side of the support plate, a main roller and a driven wheel are arranged on the support plate, a limit assembly for maintaining the stability of the main roller and the driven wheel is provided in the support plate, the limit assembly comprises a card plate arranged in the support plate, a block is fixedly connected to one side of the card plate, and a connecting plate is provided at the bottom end of the block; it also includes a transmission assembly arranged at the top of the electric hoist body for controlling the limit assembly, the transmission assembly comprises a movable plate arranged in the support plate, a long rod is provided on the top of the support plate, and the long rod is connected to the electric hoist body by a short rod, and a push block is slidably connected to the long rod.
[0007] Preferably, a fixing rod is provided between the driven wheel and the supporting plate, a thin rod portion is provided at one end of the fixing rod, a thread is provided on the thin rod portion, and a nut is threadedly connected to the thin rod portion.
[0008] Preferably, a limiting groove is provided on the supporting plate, and the movable plate is slidably connected in the limiting groove.
[0009] Preferably, a first tension spring is fixedly connected between the clamping plate and the supporting plate, and a second tension spring is fixedly connected between the connecting plate and the supporting plate.
[0010] Preferably, one side of the push block is inclined at the same angle as the top end of the connecting plate, and the bottom end of the connecting plate is inclined at the same angle as the one side of the push block.
[0011] Preferably, a motor is fixedly mounted on the top of the electric hoist body, a threaded rod is fixedly connected to the output shaft of the motor, the threaded rod is threadedly connected to the movable plate, and the threaded rod is rotatably connected to the long rod.
[0012] Preferably, a circular ring is slidably connected to the long rod, a push rod is fixedly connected between the circular ring and the push block, and a push plate is movably connected between the circular ring and the movable plate.
[0013] Preferably, arcs matching the main roller and the driven wheel are provided at both ends of the clamping plate, and anti-slip rubber pads are provided on the arcs.
[0014] Beneficial effects of the utility model:
[0015] The utility model can use the transmission component to enable the motor to drive the moving plate so that the push block can exert a force on the connecting plate in the limit assembly during the movement, so that the connecting plate can drive the clamping plate to move out of the supporting plate to limit the main roller and the driven wheel, thereby enhancing their stability. When the electric hoist body is maneuvering goods with uneven force and facing a damaged beam track, the main roller and the driven wheel are not easy to shake, thereby enhancing the stability of the entire electric hoist body, preventing further track wear and increasing the risk of goods falling. At the same time, the entire device is also convenient for canceling the limit, so that the electric hoist body is convenient for moving on the beam. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 This is a schematic diagram of the overall structure of a steel wire rope electric hoist with a stable structure according to an embodiment of the utility model;
[0018] Figure 2 This is a schematic diagram of the structure of a steel wire rope electric hoist with a stable structure according to an embodiment of the utility model;
[0019] Figure 3 This is a schematic diagram of a support plate structure of a wire rope electric hoist with a stable structure according to an embodiment of the utility model;
[0020] Figure 4 This is a schematic cross-sectional view of a support plate of a wire rope electric hoist with a stable structure according to an embodiment of the utility model;
[0021] Figure 5 This is a schematic diagram of the connecting plate structure of a wire rope electric hoist with a stable structure according to an embodiment of the utility model;
[0022] Figure 6 The present invention is a schematic diagram of a fixed rod structure of a steel wire rope electric hoist with a stable structure according to an embodiment of the present invention.
[0023] The markings in the figure are: 1. Electric hoist body; 2. Driving assembly; 3. Chain; 4. Support plate; 5. Main roller; 6. Driven wheel; 7. Clamp plate; 8. Block; 9. Connecting plate; 10. Moving plate; 11. Long rod; 12. Push block; 13. Fixed rod; 14. Thin rod; 15. Nut; 16. Limiting groove; 17. First tension spring; 18. Second tension spring; 19. Motor; 20. Threaded rod; 21. Ring; 22. Push rod; 23. Push plate. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.
[0025] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0026] like Figures 1 to 6 As shown, a specific embodiment of the utility model provides a steel wire rope electric hoist with a stable structure, comprising an electric hoist body 1, a driving assembly 2 arranged on the top of the electric hoist body 1 and a chain 3 arranged in the driving assembly 2. A support plate 4 is fixedly installed on the top of the electric hoist body 1, and the driving assembly 2 is arranged on one side of the support plate 4. A main roller 5 and a driven wheel 6 are arranged on the support plate 4. By setting the driving assembly, the main roller 5 can be driven to rotate by pulling the chain 3, so that the whole device moves along the beam track under the action of the main roller 5 and the driven wheel 6. The driving assembly is a prior art, and its specific structure is not repeated. A limiting assembly for keeping the main roller 5 and the driven wheel 6 stable is provided in the support plate 4. By setting the limiting assembly, the whole device When the main roller 5 and the driven wheel 6 are stationary on the beam, they maintain stability when subjected to external force so that they do not shake. The limiting assembly includes a card plate 7 arranged in the support plate 4, and a stopper 8 is fixedly connected to one side of the card plate 7. A connecting plate 9 is provided at the bottom end of the stopper 8. It also includes a transmission assembly arranged at the top of the electric hoist body 1 for controlling the limiting assembly. By setting the transmission assembly, it can be controlled whether the limiting assembly limits the main roller 5 and the driven wheel 6 to maintain stability, so that the device can move normally on the beam without being affected by the limit when moving. The transmission assembly includes a moving plate 10 arranged in the support plate 4, and a long rod 11 is provided on the top of the support plate 4, and the long rod 11 is connected to the electric hoist body 1 by a short rod, and a push block 12 is slidably connected to the long rod 11.
[0027] By adopting the above technical solution, such as Figure 1 and Figure 6As shown, specifically, a fixing rod 13 is provided between the driven wheel 6 and the supporting plate 4, and a thin rod portion 14 is provided at one end of the fixing rod 13, and a thread is provided on the thin rod portion 14, and a nut 15 is threadedly connected to the thin rod portion 14. When the entire device is installed, the nut 15 is rotated to disengage from the thin rod portion 14, so as to take out the driven wheel 6, and then the entire device is placed on the beam, so that the main roller 5 is in the groove on the beam, and then the driven wheel 6 is further installed on the supporting plate 4 through the fixing rod 13, so that the nut 15 is re-threadedly connected to the thin rod portion 14 to complete the installation of the driven wheel 6, and then the main roller 5 and the driven wheel 6 are both in the groove on the beam, and the entire electric hoist body 1 can be driven to move on the beam by pulling the chain 3.
[0028] like Figures 1 to 5 As shown, specifically, a limiting groove 16 is provided on the support plate 4, and the movable plate 10 is slidably connected in the limiting groove 16, a first tension spring 17 is fixedly connected between the clamping plate 7 and the support plate 4, a second tension spring 18 is fixedly connected between the connecting plate 9 and the support plate 4, a motor 19 is fixedly installed on the top of the electric hoist body 1, a threaded rod 20 is fixedly connected to the output shaft of the motor 19, and the threaded rod 20 is threadedly connected to the movable plate 10, the threaded rod 20 is rotatably connected to the long rod 11, a circular ring 21 is slidably connected to the long rod 11, and a push rod 22 is fixedly connected between the circular ring 21 and the push block 12, and a push plate 23 is movably connected between the circular ring 21 and the movable plate 10, when the electric hoist body 1 is on the beam and needs to be stationary and stable When lifting goods, the starting motor 19 drives the threaded rod 20 to rotate, so that the threaded rod 20 makes the movable plate 10 move downward along the limit groove 16. The movable plate 10 moves downward by pushing the push plate 23 to make the ring 21 move to both sides along the long rod 11, so that the ring 21 pushes the push block 12 to move toward the connecting plate 9 through the push rod 22. Since one side of the push block 12 is inclined at the same angle as the top of the connecting plate 9, the connecting plate 9 moves upward and close to the stopper 8 under the action of the push block 12, and the second tension spring 18 is stretched under the force to generate a reaction force. Since the bottom end of the connecting plate 9 is inclined at the same angle as one side of the push block 12, the stopper 8 pushes the card plate 7 to move out of the pallet 4 under the action of the connecting plate 9.
[0029] like Figures 1 to 5 As shown, specifically, arcs matching the main roller 5 and the driven wheel 6 are provided at both ends of the card plate 7, and anti-skid rubber pads are provided on the arcs. After the card plate 7 is moved out of the support plate 4, the card plate 7 is located between the main rollers 5 and the driven wheel 6, and the main rollers 5 and the driven wheel 6 are in contact with the arcs on the card plate 7, so that the card plate 7 limits the main rollers 5 and the driven wheel 6 to enhance their stability, so that when the electric hoist body 1 is subjected to force during the lifting of goods, the stability of the main rollers 5 and the driven wheel 6 on the beam is maintained, and the provision of the anti-skid rubber pads enhances the friction between the main rollers 5 and the driven wheel 6 and the card plate 7, further enhancing its stability.
[0030] like Figures 1 to 5 As shown, specifically, when the electric hoist body 1 needs to move, the reverse driving motor 19 makes the movable plate move upward and reset, so that the push plate 23 pulls the ring 21 to reset to the middle, and then the ring 21 drives the push block 12 to move and reset, and the push block 12 no longer applies force to the connecting plate 9, and the connecting plate 9 is reset under the reaction force of the second tension spring 18, and then the clamping plate 7 is re-engaged into the support plate 4 under the reaction force of the first tension spring 17, that is, the clamping plate 7 cancels the limiting effect on the main roller 5 and the driven wheel 6, so that pulling the chain 3 can drive the entire device to move on the beam.
[0031] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.
[0032] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.
Claims
1. A steel wire rope electric hoist with a stable structure, comprising an electric hoist body (1), a drive assembly (2) arranged on the top of the electric hoist body (1), and a chain (3) arranged in the drive assembly (2), characterized in that: A support plate (4) is fixedly mounted on the top of the electric hoist body (1), and a driving assembly (2) is arranged on one side of the support plate (4). A main roller (5) and a driven wheel (6) are arranged on the support plate (4). The support plate (4) is provided with a limiting assembly for maintaining the stability of the main roller (5) and the driven wheel (6), the limiting assembly comprising a clamping plate (7) arranged in the support plate (4), a stopper (8) being fixedly connected to one side of the clamping plate (7), and a connecting plate (9) being provided at the bottom end of the stopper (8); The electric hoist also comprises a transmission assembly arranged on the top of the electric hoist body (1) for controlling the limit assembly, the transmission assembly comprising a moving plate (10) arranged in a support plate (4), a long rod (11) being arranged on the top of the support plate (4), and the long rod (11) and the electric hoist body (1) being connected via a short rod, and a push block (12) being slidably connected to the long rod (11).
2. A structurally stable electric wire rope hoist according to claim 1, characterized in that: A fixing rod (13) is provided between the driven wheel (6) and the supporting plate (4), a thin rod portion (14) is provided at one end of the fixing rod (13), a thread is provided on the thin rod portion (14), and a nut (15) is threadedly connected to the thin rod portion (14).
3. The structurally stable electric wire rope hoist according to claim 1, characterized in that: The support plate (4) is provided with a limiting groove (16), and the movable plate (10) is slidably connected in the limiting groove (16).
4. The structurally stable electric wire rope hoist according to claim 1, characterized in that: A first tension spring (17) is fixedly connected between the clamping plate (7) and the supporting plate (4), and a second tension spring (18) is fixedly connected between the connecting plate (9) and the supporting plate (4).
5. The electric wire rope hoist with a stable structure according to claim 4, characterized in that: One side of the push block (12) is arranged in an inclined shape at the same angle as the top end of the connecting plate (9), and the bottom end of the connecting plate (9) is arranged in an inclined shape at the same angle as the one side of the push block (12).
6. The structurally stable electric wire rope hoist according to claim 1, characterized in that: A motor (19) is fixedly mounted on the top of the electric hoist body (1); a threaded rod (20) is fixedly connected to the output shaft of the motor (19); the threaded rod (20) is threadedly connected to the movable plate (10); and the threaded rod (20) is rotatably connected to the long rod (11).
7. The electric wire rope hoist with a stable structure according to claim 1, characterized in that: A circular ring (21) is slidably connected to the long rod (11), a push rod (22) is fixedly connected between the circular ring (21) and the push block (12), and a push plate (23) is movably connected between the circular ring (21) and the movable plate (10).
8. The structurally stable electric wire rope hoist according to claim 1, characterized in that: Arcs matching the main roller (5) and the driven wheel (6) are provided at both ends of the clamping plate (7), and anti-skid rubber pads are provided on the arcs.