Balanced electric hoist
By designing the staggered connecting rod and limit rod structure, combined with the balanced electric hoist controlled by the remote control and the microcontroller, the problem of cable shaking during the lifting of the electric hoist is solved, and the stability and safety of the lifting process are achieved.
Patent Information
- Application Number
- CN202421786574.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-26
AI Technical Summary
When existing electric hoists lift goods, due to the long rope cables and inertia, the cargo shakes a large amount and is difficult to control, which poses safety hazards.
A balanced electric hoist including a balance mechanism and a displacement mechanism is designed. By limiting the cable shaking range, an interlaced connecting rod and limit rod structure is adopted, combined with a remote control and a microcontroller to control the motor, reduce the shaking of the cable and achieve stable lifting.
Effectively reduce the shaking range of the cable, make the lifting process more stable, and reduce the possibility of accidents.
Smart Images
Figure CN223133990U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric hoists, in particular to a balanced electric hoist. Background Technique
[0002] An electric hoist is a special lifting device installed on overhead cranes and gantry cranes. The electric hoist has the characteristics of small size, light self-weight, simple operation, and convenient use, and is used in industrial and mining enterprises, warehousing, docks and other places.
[0003] The electric hoist lifts the goods through a hook and transports them to the designated position. When lifting heavy objects, workers need to hold the goods. Due to the long cable, whenever the electric hoist stops, due to inertia, the cable will drive the goods to swing. The longer the cable extends and the heavier the goods, the greater the swing amplitude, the more difficult it is to control, and the greater the possibility of accidents. Therefore, we propose a balanced electric hoist. Content of the Utility Model
[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a balanced electric hoist. By restricting the swing amplitude of the cable, the movement of the lifted goods is more stable, and the problems in the background technique can be effectively solved.
[0005] To achieve the above purpose, the utility model provides the following technical scheme: A balanced electric hoist, including a base, a winch is arranged at the lower end of the base, and it is characterized in that: it further includes a balance mechanism and a displacement mechanism;
[0006] Balance mechanism: It includes a first connecting rod, a first limiting rod, a second connecting rod and a fixed rod. The front and rear sides of the base are both rotatably connected with staggered first connecting rods through pins. Fixed rods are rotatably connected between the upper and lower ends of two adjacent second connecting rods in the front and rear. First limiting rods are rotatably connected between the middle parts of two adjacent groups of staggered second connecting rods in the front and rear. Limiting frames are arranged in the middle of the first limiting rods. The uppermost second connecting rod is rotatably connected to the lower end of the adjacent first connecting rod on the upper side;
[0007] Displacement mechanism: It is arranged at the upper end of the base, and by restricting the swing amplitude of the cable, the movement of the lifted goods is more stable.
[0008] Furthermore, it further includes a remote control. The remote control is arranged at the lower end of the base. A single-chip microcomputer is arranged inside the remote control. The input end of the single-chip microcomputer is electrically connected to an external power supply to control electrical appliances.
[0009] Furthermore, the balance mechanism further includes a second limiting rod and a rotating seat. Rotating seats symmetrically distributed in the front and rear are rotatably connected to the middle of the fixed rod. A second limiting rod is slidably connected between the upper ends of two adjacent rotating seats on the left and right to limit the cable.
[0010] Further, fixing nuts are threadedly connected to both the left and right ends of the second limiting rod, and the fixing nuts are respectively located outside the adjacent rotating seats to prevent the second limiting rod from falling off.
[0011] Further, the balance mechanism further includes a transmission assembly. The transmission assembly includes a fixed seat, a bidirectional lead screw, sliders, and sliding columns. Fixed seats symmetrically distributed left and right are provided between the front and rear side surfaces of the base. Sliding columns symmetrically distributed up and down are fixedly connected between the two fixed seats on the front side and between the two fixed seats on the rear side. Bidirectional lead screws are rotatably connected between the two fixed seats on the front side and between the two fixed seats on the rear side. The bidirectional lead screws are respectively located between the adjacent two sliding columns. Sliders are threadedly connected to both the left and right ends of the bidirectional lead screw, and the sliders are respectively slidably connected between the two sliding columns on the same front and rear sides. Chutes are provided at the upper ends of the first connecting rods, and shift rods are provided at the rear ends of the sliders. The shift rods are respectively slidably connected inside the adjacent chutes to realize the rotation of the first connecting rods.
[0012] Further, the transmission assembly further includes a second motor. The second motors are respectively fixedly connected to the right side surfaces of the rightmost fixed seats, and the output shafts of the second motors are respectively fixedly connected to the adjacent bidirectional lead screws. The input ends of the second motors are electrically connected to the output ends of the single-chip microcomputer to drive the bidirectional lead screws to rotate.
[0013] Further, the displacement mechanism includes a base, a first gear, a pulley, and a second gear. The upper end of the base is bolted to the base. Pulleys are rotatably connected between the front and rear inner walls of the base through a first rotating shaft. Second gears are fixedly sleeved on the middle parts of the front first rotating shafts. A first gear is rotatably connected to the middle part of the front inner wall of the base through a second rotating shaft. The first gear is respectively meshed with the two second gears. A first motor is fixedly connected to the front side of the base, and the output shaft of the first motor is fixedly connected to the rightmost first rotating shaft at the front side. The input end of the first motor is electrically connected to the output end of the single-chip microcomputer to realize left and right displacement.
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: This balanced electric hoist has the following advantages:
[0015] When using this balanced electric hoist, the cable and the hook pass through the limiting frame. The transmission assembly drives the two first connecting rods distributed alternately to rotate relatively. The lower ends of the two first connecting rods distributed alternately approach each other. The upper and lower ends of the two second connecting rods distributed alternately approach each other. The first limiting rods move away from each other respectively. At the same time, the two adjacent rotating seats on the left and right approach each other. The two adjacent fixing rods on the left and right and the two second limiting rods located between the two adjacent fixing rods on the left and right form a rectangular frame. The ends of the cable close to the base are respectively located inside the rectangular frame and the limiting frame in the middle of the first limiting rods, greatly reducing the swaying amplitude of the upper end of the cable. Thus, the overall swaying of the cable is reduced, and the handling process is more stable. Description of the Drawings
[0016] Figure 1 This is a schematic structural diagram of the present utility model;
[0017] Figure 2 This is a partial structural schematic diagram of the displacement mechanism of the present utility model;
[0018] Figure 3 This is an enlarged structural schematic diagram at position A of the present utility model;
[0019] Figure 4 This is an enlarged structural schematic diagram at position B of the present utility model.
[0020] In the figure: 1 base, 2 balance mechanism, 21 transmission assembly, 211 second motor, 212 fixed seat, 213 bidirectional lead screw, 214 slider, 215 sliding column, 22 first connecting rod, 23 first limiting rod, 24 second connecting rod, 25 second limiting rod, 26 rotating seat, 27 fixed rod, 3 displacement mechanism, 31 base, 32 first gear, 33 pulley, 34 second gear, 4 first motor, 5 remote controller, 6 fixing nut, 7 chute, 8 single-chip microcomputer. Specific embodiments
[0021] 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 of 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.
[0022] Please refer to Figures 1-4 , this embodiment provides a technical solution: a balanced electric hoist, including a base 1, a hoist is arranged at the lower end of the base 1, and is characterized in that: it further includes a balance mechanism 2 and a displacement mechanism 3;
[0023] Balancing mechanism 2: It includes a first connecting rod 22, a first limiting rod 23, a second connecting rod 24 and a fixed rod 27. The front and rear sides of the base 1 are both rotatably connected with staggered first connecting rods 22 through pin shafts. A fixed rod 27 is rotatably connected between the upper and lower ends of two adjacent second connecting rods 24 in the front and rear. A first limiting rod 23 is rotatably connected between the middle parts of two groups of staggered second connecting rods 24 in the front and rear. A limiting frame is provided in the middle of the first limiting rod 23. The upper end of the uppermost second connecting rod 24 is rotatably connected with the lower end of the adjacent first connecting rod 22 on the upper side. The balancing mechanism 2 further includes a second limiting rod 25 and a rotating seat 26. The middle parts of the fixed rods 27 are rotatably connected with symmetrically distributed rotating seats 26 in the front and rear. A second limiting rod 25 is slidably connected between the upper ends of two adjacent rotating seats 26. Fixing nuts 6 are threadedly connected to both the left and right ends of the second limiting rod 25, and the fixing nuts 6 are respectively located outside the adjacent rotating seats 26. The balancing mechanism 2 further includes a transmission component 21. The transmission component 21 includes a fixed seat 212, a bidirectional lead screw 213, a slider 214 and a sliding column 215. Symmetrically distributed fixed seats 212 in the left and right are provided between the front and rear sides of the base 1. Sliding columns 215 symmetrically distributed up and down are fixedly connected between the two front fixed seats 212 and between the two rear fixed seats 212. A bidirectional lead screw 213 is rotatably connected between the two front fixed seats 212 and between the two rear fixed seats 212. The bidirectional lead screw 213 is respectively located between two adjacent sliding columns 215. Sliders 214 are threadedly connected to both the left and right ends of the bidirectional lead screw 213, and the sliders 214 are respectively slidably connected between two sliding columns 215 on the same front and rear side. Chutes 7 are provided at the upper ends of the first connecting rods 22. Pushing rods are provided at the rear ends of the sliders 214, and the pushing rods are respectively slidably connected inside the adjacent chutes 7. The transmission component 21 further includes a second motor 211. The second motors 211 are respectively fixedly connected to the right side surfaces of the rightmost fixed seats 212. The output shafts of the second motors 211 are respectively fixedly connected to the adjacent bidirectional lead screws 213. The input ends of the second motors 211 are electrically connected to the output ends of the single-chip microcomputer 8. When using this balanced electric hoist, the cable and the hook pass through the limiting frame. The output shaft of the second motor 211 is controlled to rotate by using the remote control 5. The output shaft of the second motor 211 drives the adjacent bidirectional lead screw 213 to rotate, driving the two sliders 214 to approach each other. The pushing rods are respectively slidably connected inside the adjacent chutes 7, and the two staggered first connecting rods 22 rotate relative to each other. The lower ends of the two staggered first connecting rods 22 approach each other. The upper and lower ends of the two staggered second connecting rods 24 approach each other. The first limiting rods 23 move away from each other respectively. At the same time, two adjacent rotating seats 26 approach each other. Two adjacent fixed rods 27 and two second limiting rods 25 located between the two adjacent fixed rods 27 form a rectangular frame. One end of the cable close to the base 1 is located inside the rectangular frame and the limiting frame in the middle of the first limiting rod 23, greatly reducing the shaking amplitude of the upper end of the cable, thereby greatly reducing the overall shaking of the cable and making the handling process more stable;
[0024] Displacement mechanism 3: It is arranged at the upper end of the base 1. The displacement mechanism 3 includes a base 31, a first gear 32, a pulley 33 and a second gear 34. The upper end of the base 1 is connected with the base 31 by bolts. Between the front and rear inner walls of the base 31, pulleys 33 are rotatably connected by a first rotating shaft. In the middle of the first rotating shaft at the front end, second gears 34 are fixedly sleeved. In the middle of the front inner wall of the base 31, a first gear 32 is rotatably connected by a second rotating shaft. The first gear 32 is meshed with the two second gears 34 respectively. The front side of the base 31 is fixedly connected with a first motor 4. The output shaft of the first motor 4 is fixedly connected with the first rotating shaft at the right end of the front side. The input end of the first motor 4 is electrically connected with the output end of the single-chip microcomputer 8. The first motor 4 drives the adjacent first rotating shaft and the second gear 34 to rotate. Through the meshing connection of the first gear 32, the two second gears 34 rotate synchronously, and the pulley 33 rotates to realize the left and right displacement of the balance electric hoist.
[0025] Among them: It further includes a remote controller 5. The remote controller 5 is arranged at the lower end of the base 1. A single-chip microcomputer 8 is arranged inside the remote controller 5. The input end of the single-chip microcomputer 8 is electrically connected with an external power supply, and the input end of the single-chip microcomputer 8 is electrically connected with an external power supply.
[0026] The working principle of a balance electric hoist provided by the present utility model is as follows: When using this balance electric hoist, the cable and the hook of the winch pass through the limit frame. Use the remote controller 5 to control the rotation of the output shaft of the second motor 211. The output shaft of the second motor 211 drives the adjacent bidirectional lead screw 213 to rotate, driving the two sliders 214 to approach each other. The shift rods are respectively slidably connected inside the adjacent chutes 7. The two first connecting rods 22 distributed alternately rotate relative to each other. The lower ends of the two first connecting rods 22 distributed alternately approach each other. The upper and lower ends of the two second connecting rods 24 distributed alternately approach each other. The first limit rods 23 move away from each other respectively. At the same time, the two adjacent rotating seats 26 approach each other. The two adjacent fixing rods 27 and the two second limit rods 25 located between the two adjacent fixing rods 27 form a rectangular frame. One end of the cable close to the base 1 is located inside the limit frame in the middle of the rectangular frame and the first limit rods 23, greatly reducing the shaking amplitude of the upper end of the cable. Thus, the overall shaking of the cable is reduced, and the handling process is more stable. The first motor 4 drives the adjacent first rotating shaft and the second gear 34 to rotate. Through the meshing connection of the first gear 32, the two second gears 34 rotate synchronously, and the pulley 33 rotates to realize the left and right displacement of the balance electric hoist.
[0027] It should be noted that, in the above embodiments, the single-chip microcomputer 8 disclosed can be selected as STC89C52RC, the winch can be selected as CD1 type winch, the first motor 4 can be selected as NMRV150 - 10 worm and worm gear reducer, the second motor 211 can be selected as Z55BLD120 - 24 - 50 reduction motor. The single-chip microcomputer 8 controls the first motor 4, the winch and the second motor 211 to work by using the commonly used methods in the prior art.
[0028] The above are only embodiments of the present utility model, and do not thereby limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall similarly be included within the patent protection scope of the present utility model.
Claims
1. A balanced electric hoist, comprising a base (1), and a hoist is arranged at the lower end of the base (1), characterized in that: It also includes a balance mechanism (2) and a displacement mechanism (3); Balance mechanism (2): It includes a first connecting rod (22), a first limiting rod (23), a second connecting rod (24) and a fixed rod (27). The front and rear sides of the base (1) are both rotatably connected with staggered first connecting rods (22) through pin shafts. Fixed rods (27) are rotatably connected between the upper and lower ends of two adjacent second connecting rods (24) front and rear. First limiting rods (23) are rotatably connected between the middle parts of two groups of staggered second connecting rods (24) adjacent front and rear. Limiting frames are arranged in the middle of the first limiting rods (23). The upper end of the uppermost second connecting rod (24) is rotatably connected with the lower end of the adjacent first connecting rod (22) on the upper side; Displacement mechanism (3): It is arranged at the upper end of the base (1).
2. The balance electric hoist according to claim 1, characterized in that: It also includes a remote controller (5). The remote controller (5) is arranged at the lower end of the base (1). A single-chip microcomputer (8) is arranged inside the remote controller (5). The input end of the single-chip microcomputer (8) is electrically connected to an external power supply.
3. A balanced electric hoist according to claim 1, characterized in that: The balance mechanism (2) also includes a second limiting rod (25) and a rotating seat (26). The middle parts of the fixed rods (27) are rotatably connected with symmetrically distributed rotating seats (26) front and rear. A second limiting rod (25) is slidably connected between the upper ends of two adjacent rotating seats (26) left and right.
4. The balance electric hoist according to claim 3, characterized in that: Fixing nuts (6) are threadedly connected to the left and right ends of the second limiting rod (25). The fixing nuts (6) are respectively located outside the adjacent rotating seats (26).
5. The balanced electric hoist according to claim 2, characterized in that: The balance mechanism (2) also includes a transmission component (21). The transmission component (21) includes a fixed seat (212), a bidirectional lead screw (213), a slider (214) and a sliding column (215). Fixed seats (212) symmetrically distributed left and right are arranged between the front and rear sides of the base (1). Sliding columns (215) symmetrically distributed up and down are fixedly connected between the two front fixed seats (212) and between the two rear fixed seats (212). Bidirectional lead screws (213) are rotatably connected between the two front fixed seats (212) and between the two rear fixed seats (212). The bidirectional lead screws (213) are respectively located between two adjacent sliding columns (215). Sliders (214) are threadedly connected to the left and right ends of the bidirectional lead screw (213). The sliders (214) are respectively slidably connected between two sliding columns (215) on the same front and rear side. Chutes (7) are arranged at the upper ends of the first connecting rods (22). Pushing rods are arranged at the rear ends of the sliders (214). The pushing rods are respectively slidably connected inside the adjacent chutes (7).
6. The balanced electric hoist according to claim 5, characterized in that: The transmission component (21) also includes a second motor (211). The second motors (211) are respectively fixedly connected to the right side surfaces of the rightmost fixed seats (212). The output shafts of the second motors (211) are respectively fixedly connected to the adjacent bidirectional lead screws (213). The input ends of the second motors (211) are electrically connected to the output ends of the single-chip microcomputer (8).
7. A balanced electric hoist according to claim 2, wherein: The displacement mechanism (3) includes a base (31), a first gear (32), a pulley (33) and a second gear (34). The upper end of the base (1) is bolted to the base (31). Between the inner walls on the front and rear sides of the base (31), pulleys (33) are rotatably connected by a first rotating shaft. In the middle of the first rotating shaft at the front end, second gears (34) are fixedly sleeved. In the middle of the inner wall on the front side of the base (31), a first gear (32) is rotatably connected by a second rotating shaft. The first gear (32) is meshed with the two second gears (34) respectively. A first motor (4) is fixedly connected to the front side of the base (31). The output shaft of the first motor (4) is fixedly connected to the first rotating shaft at the right end of the front side. The input end of the first motor (4) is electrically connected to the output end of the single-chip microcomputer (8).