Automatic anti-deviation hoisting device for electric hoist

Abstract

The utility model discloses an automatic anti-deviation hoisting device for an electric hoist, which comprises a moving track and an electric hoist body mounted on the moving track, a hook is arranged on a steel rope in the electric hoist body, a guide fixing component is arranged below the electric hoist body, and the guide fixing component comprises a guide rod, a lifting rod and a lifting rod, the guide assembly is used for guiding a steel cable to move and comprises a left installation base and a right installation base, a lead screw is rotationally connected between the two installation bases, the surface of the lead screw is in threaded connection with an L-shaped plate, and a square groove is formed in the L-shaped plate. According to the automatic deviation-preventing hoisting device for the electric hoist, when the electric hoist body stops working, namely the steel cable in the electric hoist stops moving, the position of the steel cable is pressed and fixed through the fixing assembly, so that the situation that a motor of the electric hoist body is affected by force borne by the steel cable is avoided, and the service life of the electric hoist is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electric hoists, in particular to an automatic anti-deviation lifting device for an electric hoist. Background Technique

[0002] An electric hoist is a special lifting equipment installed on overhead cranes and gantry cranes. The electric hoist has the characteristics of small volume, light self-weight, simple operation, and convenient use, and is used in industrial and mining enterprises, warehousing, docks and other places.

[0003] The reference patent publication number "CN217437614U" discloses an automatic anti-deviation lifting device for an electric hoist, which includes a hook, a main board, a first connecting plate, a rope, a fixing plate, a sliding plate, two first limit plates, two second limit plates and two third limit plates. A motor and a winding shaft are arranged on the main board, and two first through holes are arranged side by side on the main board.

[0004] This patent realizes anti-deviation when lifting goods. When the existing electric hoist is in use, the goods are lifted by a hook. When the hook operation is carried out, the operator may pull the steel cable, which may cause the motor of the electric hoist to be subjected to a reverse force. Moreover, when the goods stay in the air, the motor of the electric hoist will also be subjected to a reverse force. Under the long-term action of such a force, the service life of the electric hoist will be affected. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides an automatic anti-deviation lifting device for an electric hoist, which solves the problem that the existing automatic anti-deviation lifting device for an electric hoist is subjected to a reverse pulling force during use.

[0006] To achieve the above object, the utility model is realized through the following technical solutions: an automatic anti-deviation lifting device for an electric hoist includes a moving track and an electric hoist body installed on the moving track. A hook is arranged on the steel cable in the electric hoist body, and a guiding and fixing component is arranged below the electric hoist body. The guiding and fixing component includes:

[0007] A guiding component is arranged below the electric hoist body. The guiding component is used to guide the movement of the steel cable. The guiding component includes two left and right mounting seats. A lead screw is rotatably connected between the two mounting seats, and an L-shaped plate is threadedly connected to the surface of the lead screw. A square groove is opened inside the L-shaped plate, and the steel cable of the electric hoist body passes through the square groove;

[0008] A fixing component is arranged inside the L-shaped plate. The fixing component is used to clamp and fix the position of the steel cable after it stops. The fixing component includes a fixed arc plate, which is fixedly connected to the left side of the inner wall of the L-shaped plate. A slider is slidably connected to the right side of the L-shaped plate, and one end of the slider passing through the L-shaped plate and extending into the inside of the L-shaped plate is fixedly connected to a movable arc plate.

[0009] Preferably, a return spring is sleeved on the surface of the slider located between the movable arc-shaped plate and the inner wall of the L-shaped plate. One end of the return spring is fixedly connected to the right side of the inner wall of the L-shaped plate, and the other end of the return spring is fixedly connected to the right side of the movable arc-shaped plate.

[0010] Preferably, an electric push rod is fixedly connected to the right side of the L-shaped plate, and a push block is fixedly connected to the output end of the electric push rod. An inclined surface is obliquely cut on the back surface of the slider, and an inclined surface matching the slider is also formed on the front surface of the push block.

[0011] Preferably, both mounting seats are fixedly connected to the back surface of the electric hoist body, and the L-shaped plate is slidably connected to the bottom of the electric hoist body.

[0012] Preferably, a driving motor is fixedly connected to the back surface of the electric hoist body through a bracket, and the output end of the driving motor is fixedly connected to the left end of the lead screw.

[0013] Preferably, a lifting lug is fixedly connected to the bottom of the L-shaped plate, and the lifting lug is used to fix one end of the steel cable. Travel switches are fixedly connected to the bottoms of both mounting seats.

[0014] Beneficial effects

[0015] The utility model provides an automatic anti-deviation hoisting device for an electric hoist. Compared with the prior art, the following beneficial effects are achieved:

[0016] 1. For the automatic anti-deviation hoisting device of the electric hoist, the fixing component includes a fixed arc-shaped plate which is fixedly connected to the left side of the inner wall of the L-shaped plate, and a slider is slidably connected to the right side of the L-shaped plate. When the electric hoist body stops working, that is, when the steel cable in the electric hoist stops moving, the position of the steel cable is pressed and fixed by the fixing component, so as to prevent the force on the steel cable from affecting the motor of the electric hoist body, which is beneficial to improving the service life of the electric hoist.

[0017] 2. For the automatic anti-deviation hoisting device of the electric hoist, the guiding component includes two left and right mounting seats, a lead screw is rotatably connected between the two mounting seats, and an L-shaped plate is threadedly connected to the surface of the lead screw. When the steel cable in the electric hoist body moves, the position of the steel cable is guided through the cooperation of the guiding component, thereby avoiding the problem of steel cable misalignment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the external view schematic diagram of the utility model;

[0019] Figure 2 is the schematic diagram of the electric hoist body of the utility model;

[0020] Figure 3Schematic diagram of the guiding and fixing mechanism of the utility model;

[0021] Figure 4 Enlarged view of part A of the utility model.

[0022] In the figure: 1, moving track; 2, electric hoist body; 3, hook; 4, guiding component; 41, mounting seat; 42, lead screw; 43, bracket; 44, driving motor; 45, L-shaped plate; 46, lifting lug; 47, travel switch; 5, fixing component; 51, fixing arc plate; 52, slider; 53, movable arc plate; 54, return spring; 55, electric push rod; 56, push block. Specific implementation mode

[0023] 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 the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] The automatic anti-deviation lifting device of the electric hoist provides two technical solutions:

[0025] As Figures 1-4 shows the first implementation mode: including a moving track 1 and an electric hoist body 2 installed on the moving track 1. A hook 3 is arranged on the steel cable in the electric hoist body 2. The electric hoist body 2 is mainly composed of a motor, a winding drum and a steel cable. The steel cable is wound around the winding drum, and after the steel cable is connected to the hook 3, the other end is fixed to the lifting lug 46. A guiding and fixing component is arranged below the electric hoist body 2. The guiding and fixing component includes:

[0026] A guiding component 4, arranged below the electric hoist body 2, is used to guide the movement of the steel cable. The guiding component 4 includes two left and right mounting seats 41. A lead screw 42 is rotatably connected between the two mounting seats 41, and an L-shaped plate 45 is threadedly connected to the surface of the lead screw 42. A square groove is opened inside the L-shaped plate 45, and the steel cable of the electric hoist body 2 passes through the square groove;

[0027] The fixing assembly 5 is arranged inside the L-shaped plate 45. The fixing assembly 5 is used to clamp and fix the position of the steel cable after it stops. The fixing assembly 5 includes a fixed arc plate 51. The fixed arc plate 51 is fixedly connected to the left side of the inner wall of the L-shaped plate 45. A slider 52 is slidably connected to the right side of the L-shaped plate 45. The slider 52 penetrates the L-shaped plate 45 and extends to the inside of the L-shaped plate 45. One end is fixedly connected to a movable arc plate 53. The surface of the slider 52 between the movable arc plate 53 and the inner wall of the L-shaped plate 45 is sleeved with a reset spring 54. One end of the reset spring 54 is fixedly connected to the right side of the inner wall of the L-shaped plate 45, and the other end of the reset spring 54 is fixedly connected to the right side of the movable arc plate 53.

[0028] When the electric hoist body 2 stops working, that is, when the steel cable in the electric hoist stops moving, the position of the steel cable is compressed and fixed by the fixing component 5, so as to prevent the force on the steel cable from affecting the motor of the electric hoist body 2, which is beneficial to improve the service life of the electric hoist.

[0029] If Figures 1-3 The second embodiment is shown, which is mainly different from the first embodiment in that: the guide assembly 4 is arranged below the electric hoist body 2, and the guide assembly 4 is used to guide the steel cable to move. The guide assembly 4 includes two left and right mounting seats 41, and a screw rod 42 is rotatably connected between the two mounting seats 41, and the surface of the screw rod 42 is threadedly connected with an L-shaped plate 45, and a square groove is opened inside the L-shaped plate 45, and the steel cable of the electric hoist body 2 passes through the square groove, and an electric push rod 55 is fixedly connected to the right side of the L-shaped plate 45, and the output end of the electric push rod 55 is fixedly connected to the push rod 55. The back of the slider 52 is beveled, and the front of the push block 56 is also provided with a bevel that matches the slider 52. The two mounting seats 41 are fixedly connected to the back of the electric hoist body 2. The L-shaped plate 45 is slidably connected to the bottom of the electric hoist body 2. The back of the electric hoist body 2 is fixedly connected to the drive motor 44 through the bracket 43. The output end of the drive motor 44 is fixedly connected to the left end of the screw rod 42. The bottom of the L-shaped plate 45 is fixedly connected to the ear 46, and the ear 46 is used to fix one end of the steel cable. The bottoms of the two mounting seats 41 are fixedly connected to the travel switch 47.

[0030] When the steel cable in the electric hoist body 1 moves, the position of the steel cable is guided by the cooperation of the guide assembly 4, thereby avoiding the problem of steel cable misalignment.

[0031] In use, when the electric hoist body 2 is working, start the drive motor 44 to rotate the lead screw 42. The rotation of the lead screw 42 causes the L-shaped plate 45 to move, thereby guiding the steel cable to move. After the L-shaped plate 45 contacts the travel switch 47 on one side, the L-shaped plate 45 rotates in the reverse direction, causing the L-shaped plate 45 to move reciprocally left and right. Additionally, after the movement of the steel cable stops, start the electric push rod 55. The electric push rod 55 works and drives the push block 56 to approach the slider 52, and through the cooperation of the corresponding inclined surfaces, the slider 52 is moved. The movement of the slider 52 pushes the movable arc plate 53 closer to the steel cable, thereby clamping and fixing the position of the steel cable and reducing the influence of the released steel cable on the moving track 1.

[0032] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric hoist automatic anti-deviation lifting device, comprising a moving track (1) and an electric hoist body (2) mounted on the moving track (1), characterized in that: A hook (3) is arranged on the steel cable in the electric hoist body (2), and a guide fixing component is arranged below the electric hoist body (2), and the guide fixing component comprises: A guide assembly (4) is arranged below the electric hoist body (2), and is used to guide the steel cable to move. The guide assembly (4) comprises two left and right mounting seats (41), a screw rod (42) is rotatably connected between the two mounting seats (41), and an L-shaped plate (45) is threadedly connected to the surface of the screw rod (42), a square groove is provided inside the L-shaped plate (45), and the steel cable of the electric hoist body (2) passes through the square groove; A fixing assembly (5) is arranged inside the L-shaped plate (45). The fixing assembly (5) is used to clamp and fix the position of the steel cable after it stops. The fixing assembly (5) comprises a fixing arc plate (51). The fixing arc plate (51) is fixedly connected to the left side of the inner wall of the L-shaped plate (45). The right side of the L-shaped plate (45) is slidably connected to a slider (52). The slider (52) penetrates the L-shaped plate (45) and extends to one end inside the L-shaped plate (45). The slider is fixedly connected to a movable arc plate (53).

2. The electric hoist automatic anti-deviation lifting device according to claim 1, characterized in that: A return spring (54) is sleeved on the surface of the slider (52) located between the movable arc plate (53) and the inner wall of the L-shaped plate (45); one end of the return spring (54) is fixedly connected to the right side of the inner wall of the L-shaped plate (45), and the other end of the return spring (54) is fixedly connected to the right side of the movable arc plate (53).

3. The electric hoist automatic anti-deviation lifting device according to claim 1, characterized in that: The right side of the L-shaped plate (45) is fixedly connected to an electric push rod (55), and the output end of the electric push rod (55) is fixedly connected to a push block (56). The back side of the slider (52) is beveled with an inclined surface, and the front side of the push block (56) is also provided with an inclined surface matching the slider (52).

4. The electric hoist automatic anti-deviation lifting device according to claim 1, characterized in that: The two mounting seats (41) are both fixedly connected to the back side of the electric hoist body (2), and the L-shaped plate (45) is slidably connected to the bottom of the electric hoist body (2).

5. The electric hoist automatic anti-deviation lifting device according to claim 1, characterized in that: The back side of the electric hoist body (2) is fixedly connected to a driving motor (44) via a bracket (43), and the output end of the driving motor (44) is fixedly connected to the left end of the screw rod (42).

6. The electric hoist automatic anti-deviation lifting device according to claim 1, characterized in that: The bottom of the L-shaped plate (45) is fixedly connected with a lifting lug (46), and the lifting lug (46) is used to fix one end of the steel cable. The bottoms of the two mounting seats (41) are fixedly connected with travel switches (47).

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