Anti-shaking steel wire rope electric hoist

Abstract

The utility model relates to the technical field of electric hoists, in particular to an anti-shaking steel wire rope electric hoist which comprises an electric hoist body and a steel wire rope arranged on the electric hoist body, a moving box is arranged at the bottom end of the electric hoist body, and two sets of limiting assemblies used for preventing the steel wire rope from shaking are symmetrically arranged in the moving box. The limiting assembly comprises a baffle arranged in the moving box, a hydraulic rod and a first spring are fixedly connected between the baffle and the moving box, and a moving plate is arranged in the moving box. By arranging the baffle, the steel wire rope is buffered under the action of pushing the baffle to the hydraulic rod and the first spring, the left-right shaking amplitude of the steel wire rope is reduced, and meanwhile the pushing block at the bottom end pushes the moving plate to move downwards through the transmission assembly; and then a side arc block of the first moving plate is used for buffering the longer position of the steel wire rope under the cooperation effect of a third spring and a telescopic rod.

Description

Technical Field

[0001] The utility model relates to the technical field of electric hoists, in particular to an anti-swaying steel wire rope electric hoist. Background Art

[0002] Electric hoist is a special lifting equipment with a stable structure of wire rope electric hoist. It is installed on overhead crane and gantry crane. Electric hoist has the characteristics of small size, light weight, simple operation and easy use. It is used in industrial and mining enterprises, warehouses, docks and other places. The electric hoist has a compact structure, and the motor axis is perpendicular to the drum axis. The electric hoist adopts a 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.

[0003] Most of the existing electric hoists do not have devices to prevent the wire rope from swaying. When the electric hoist starts to lift goods and the crossbeam starts to move, due to inertia, the heavy object on the hook will swing to the side opposite to the movement direction of the traveling device, so that the goods and the wire rope will swing back and forth together. If the swing of the wire rope of the electric hoist is not limited, when the swing amplitude is too large, it will cause the heavy object to fall off the hook, resulting in property damage or even personal injury.

[0004] Therefore, a kind of anti-swaying wire rope electric hoist is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-sway wire rope electric hoist to solve the problem that most of the existing electric hoists mentioned in the above background technology do not have a device to prevent the wire rope from swaying. When the electric hoist starts to move the crossbeam to lift the goods, due to the effect of inertia, the heavy object on the hook will swing toward the side opposite to the movement direction of the walking device, so that the goods and the wire rope will swing back and forth together. If the swing of the wire rope of the electric hoist is not limited, when the swing amplitude is too large, it will cause the heavy object to fall off the hook, thereby causing property damage or even personal injury.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-sway wire rope electric hoist, comprising an electric hoist body and a wire rope arranged on the electric hoist body, a moving box is provided at the bottom end of the electric hoist body, and two groups of limit assemblies for preventing the wire rope from swaying are symmetrically provided in the moving box, the limit assembly comprises a baffle arranged in the moving box, a hydraulic rod and a first spring are fixedly connected between the baffle and the moving box, a moving plate is provided in the moving box, and an arc block is provided on one side of the moving plate; it also includes a transmission assembly arranged in the moving box for the arc block to move along the wire rope, the transmission assembly comprises a first rack fixedly connected to one side of the baffle, a second rack is provided at the bottom end of the first rack, and a gear is meshed between the first rack and the second rack, and a push block is provided on one side of the moving plate.

[0007] Preferably, a motor is fixedly mounted on the electric hoist body, a threaded rod is fixedly connected to the output shaft of the motor, a short plate is fixedly connected to the movable box, and the short plate is threadedly connected to the threaded rod, a guide rod is fixedly mounted on the electric hoist body, and the guide rod is slidably connected to the short plate.

[0008] Preferably, a slot for the first rack to move is provided on the moving box, a track box is fixedly mounted on the moving box, and the second rack is slidably connected in the track box.

[0009] Preferably, one side of the gear is rotatably connected to a connecting rod, and the connecting rod is fixedly connected to the moving box, and a connecting plate is fixedly connected between the second rack and the push block.

[0010] Preferably, a slide groove is provided in the movable box, a long board is slidably connected in the slide groove, and the movable board is fixedly connected to the bottom end of the long board.

[0011] Preferably, a support plate is fixedly mounted on the bottom end of the moving box, and a second spring is fixedly connected between the support plate and the moving plate.

[0012] Preferably, platforms are sequentially provided on one side of the movable plate, and a third spring and a telescopic rod are fixedly connected between the platform and the arc block.

[0013] Preferably, a limiting groove is provided on the arc block, and a ball is arranged in the limiting groove, and a pressure plate is provided at the top of the arc block.

[0014] Beneficial effects of the utility model:

[0015] The utility model arranges a baffle plate so that when the wire rope pushes the baffle plate to act on the hydraulic rod and the first spring, the wire rope is buffered and the amplitude of its left and right swinging is reduced. At the same time, the push block at the bottom pushes the movable plate downward through the transmission component, so that the side arc block of the movable plate, in cooperation with the third spring and the telescopic rod, buffers the longer position of the wire rope, further reduces the amplitude of the left and right swinging of the wire rope, and prevents the heavy objects on the hook from falling easily and causing property damage and personal injury. 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 an anti-sway wire rope electric hoist according to an embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of a guide rod structure of an anti-sway wire rope electric hoist according to an embodiment of the utility model;

[0019] Figure 3 This is a schematic cross-sectional structure diagram of a moving box of an anti-swaying wire rope electric hoist according to an embodiment of the utility model;

[0020] Figure 4 The utility model is an anti-sway wire rope electric hoist Figure 3 The enlarged structural diagram at A in the middle;

[0021] Figure 5 This is a schematic diagram of the structure of a movable plate of an anti-swaying wire rope electric hoist according to an embodiment of the utility model;

[0022] Figure 6 The utility model is a schematic diagram of the arc block structure of an anti-sway wire rope electric hoist according to an embodiment of the present invention.

[0023] The markings in the figure are: 1. Electric hoist body; 2. Wire rope; 3. Moving box; 4. Baffle; 5. Hydraulic rod; 6. First spring; 7. Moving plate; 8. Arc block; 9. First rack; 10. Second rack; 11. Gear; 12. Push block; 13. Motor; 14. Threaded rod; 15. Guide rod; 16. Notch; 17. Track box; 18. Slide; 19. Long board; 20. Second spring; 21. Third spring; 22. Telescopic rod; 23. Ball; 24. Pressure 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, the specific embodiment of the utility model provides an anti-sway wire rope electric hoist, including an electric hoist body 1 and a wire rope 2 arranged on the electric hoist body 1, a moving box 3 is arranged at the bottom end of the electric hoist body 1, and two groups of limit components for preventing the wire rope 2 from swaying are symmetrically arranged in the moving box 3. The wire rope 2 on the electric hoist body 1 can be limited by setting the limit component to reduce the swaying of the wire rope 2 when the electric hoist body 1 is started to move. The limit component includes a baffle 4 arranged in the moving box 3, and a liquid is fixedly connected between the baffle 4 and the moving box 3. A pressure rod 5 and a first spring 6, a moving plate 7 is provided in the moving box 3, and an arc block 8 is provided on one side of the moving plate 7; it also includes a transmission component provided in the moving box 3 for the arc block 8 to move along the wire rope 2. By setting the transmission component, the arc block 8 can be moved along the wire rope 2, and further limited to reduce its shaking. The transmission component includes a first rack 9 fixedly connected to one side of the baffle 4, a second rack 10 is provided at the bottom end of the first rack 9, and a gear 11 is meshed between the first rack 9 and the second rack 10, and a push block 12 is provided on one side of the moving plate 7.

[0027] like Figure 2 , Figure 4 and Figure 5As shown, by adopting the above technical scheme, specifically, a motor 13 is fixedly installed on the electric hoist body 1, a threaded rod 14 is fixedly connected to the output shaft of the motor 13, a short plate is fixedly connected to the moving box 3, and the short plate is threadedly connected to the threaded rod 14, a guide rod 15 is fixedly installed on the electric hoist body 1, and the guide rod 15 is slidably connected to the short plate. When the electric hoist body 1 starts to extend or retract the wire rope 2, the wire rope 2 moves left and right along the electric hoist body 1. At this time, the starting motor 13 drives the threaded rod 14 to rotate, so that the moving box 3 moves along the guide rod 15, and then the moving box 3 always moves with the wire rope 2, so as to achieve the effect of reducing the subsequent shaking. A slot 16 for the first rack 9 to move is opened on the moving box 3, a track box 17 is fixedly installed on the moving box 3, and the second rack 10 is slidably connected in the track box 17, and the gear 11 One side of the electric hoist body 1 is rotatably connected with a connecting rod, and the connecting rod is fixedly connected to the moving box 3. When the electric hoist body 1 starts to move, due to inertia, the goods at the bottom end of the wire rope 2 drives the wire rope 2 to swing in the opposite direction of the moving direction, and the shaking wire rope 2 is inclined at this time, so that the wire rope 2 and the arc block 8 in the moving box 3 are tightly attached in sequence, and at the same time, the wire rope 2 leans against the baffle 4 on one side of the moving box 3, and the baffle 4 is subjected to pressure to push the hydraulic rod 5, the first spring 6 and the first rack 9. The hydraulic rod 5 and the first spring 6 are forced to shrink and generate a reaction force, thereby buffering the wire rope 2 and reducing the amplitude of the shaking of the wire rope 2. The first rack 9 is subjected to pressure to move toward the notch 16, and the movement of the first rack 9 drives the second rack 10 at the bottom to move along the track box 17 in the opposite direction of the movement of the first rack 9 through the action of the gear 11.

[0028] like Figure 4 and Figure 5As shown, specifically, a connecting plate is fixedly connected between the second rack 10 and the push block 12, a slide groove 18 is provided in the mobile box 3, a long plate 19 is slidably connected in the slide groove 18, and the mobile plate 7 is fixedly connected to the bottom end of the long plate 19, a support plate is fixedly installed at the bottom end of the mobile box 3, and a second spring 20 is fixedly connected between the support plate and the mobile plate 7. The movement of the first rack 9 causes it to push the push block 12 to move toward the mobile plate 7 through the connecting plate and exert pressure on the mobile plate 7. Since the push block 12 and one side of the mobile plate 7 are inclined at the same angle, the mobile plate 7 moves downward along the slide groove 18 under the action of the force. At this time, the first rack 9 pushes the push block 12 to move toward the mobile plate 7 through the connecting plate and exerts pressure on the mobile plate 7. The second spring 20 contracts under force to generate a reaction force, and a platform is opened on one side of the movable plate 7 in turn, and a third spring 21 and a telescopic rod 22 are fixedly connected between the platform and the arc block 8. When the movable plate 7 moves downward, it drives the arc block 8 on one side of the platform to move downward, and the wire rope 2 is close to the arc block 8 and exerts pressure on it. At this time, the third spring 21 and the telescopic rod 22 contract under force to generate a reaction force and buffer the force generated by the shaking of the wire rope 2, thereby reducing its shaking amplitude. At the same time, the arc block 8 moves downward, so that the length of the force buffering of the inclined wire rope 2 during the shaking gradually increases, thereby reducing the shaking amplitude of the entire wire rope 2.

[0029] like Figure 4 , Figure 5 and Figure 6 As shown, specifically, a limiting groove is provided on the arc block 8, and a ball 23 is provided in the limiting groove, and a pressure plate 24 is provided at the top of the arc block 8. The setting of the ball 23 makes the arc block 8 close to the wire rope 2 less subject to friction during movement and easier to move. The ball 23 can be easily replaced by removing the pressure plate 24. During the shaking, the wire rope 2 is subjected to a reduced shaking amplitude on one side and then shakes to the other side. At this time, the wire rope 2 no longer applies pressure to the baffle 4, so that the baffle 4 drives the first rack 9 to reset under the reaction force of the first spring 6, and then the second rack 10 is reset under the action of the gear 11, and the reset of the second rack 10 drives the push block 12 to reset, and the push block 12 no longer applies pressure to the moving plate 7, so that the moving plate 7 moves upward and resets under the reaction force of the second spring 20, and the wire rope 2 shaking to the other side approaches the baffle 4 on the other side, which is the same as the above principle, and gradually achieves the effect of reducing the shaking of the wire rope 2.

[0030] 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.

[0031] 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. An anti-sway wire rope electric hoist, comprising an electric hoist body (1) and a wire rope (2) arranged on the electric hoist body (1), characterized in that: A moving box (3) is provided at the bottom end of the electric hoist body (1), and two groups of limiting components for preventing the steel wire rope (2) from shaking are symmetrically provided in the moving box (3); The limiting assembly comprises a baffle (4) arranged in the moving box (3); a hydraulic rod (5) and a first spring (6) are fixedly connected between the baffle (4) and the moving box (3); a moving plate (7) is arranged in the moving box (3); and a circular arc block (8) is arranged on one side of the moving plate (7); It also includes a transmission assembly arranged in the moving box (3) for moving the arc block (8) along the wire rope (2), the transmission assembly including a first rack (9) fixedly connected to one side of the baffle (4), a second rack (10) being arranged at the bottom end of the first rack (9), and a gear (11) being meshed between the first rack (9) and the second rack (10), and a push block (12) being arranged on one side of the moving plate (7).

2. The anti-sway wire rope electric hoist according to claim 1, characterized in that: A motor (13) is fixedly mounted on the electric hoist body (1), a threaded rod (14) is fixedly connected to the output shaft of the motor (13), a short plate is fixedly connected to the moving box (3), and the short plate is threadedly connected to the threaded rod (14), and a guide rod (15) is fixedly mounted on the electric hoist body (1), and the guide rod (15) is slidably connected to the short plate.

3. The anti-sway wire rope electric hoist according to claim 1, characterized in that: The moving box (3) is provided with a slot (16) for the first rack (9) to move, a track box (17) is fixedly mounted on the moving box (3), and the second rack (10) is slidably connected in the track box (17).

4. The anti-swaying wire rope electric hoist according to claim 1, characterized in that: One side of the gear (11) is rotatably connected to a connecting rod, and the connecting rod is fixedly connected to the moving box (3), and a connecting plate is fixedly connected between the second rack (10) and the push block (12).

5. The anti-swaying wire rope electric hoist according to claim 4, characterized in that: The movable box (3) is provided with a slide groove (18), a long plate (19) is slidably connected in the slide groove (18), and the movable plate (7) is fixedly connected to the bottom end of the long plate (19).

6. The anti-swaying wire rope electric hoist according to claim 1, characterized in that: A support plate is fixedly mounted on the bottom end of the moving box (3), and a second spring (20) is fixedly connected between the support plate and the moving plate (7).

7. The anti-swaying wire rope electric hoist according to claim 1, characterized in that: One side of the movable plate (7) is provided with a platform in sequence, and a third spring (21) and a telescopic rod (22) are fixedly connected between the platform and the arc block (8).

8. The anti-sway wire rope electric hoist according to claim 1, characterized in that: The arc block (8) is provided with a limiting groove, in which a ball (23) is arranged, and a pressing plate (24) is arranged at the top end of the arc block (8).

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