Stepless speed regulation electric hoist

Abstract

The utility model provides a stepless speed regulation electric hoist which comprises a shell, a winch motor is installed on the right side of the shell, a transmission assembly is arranged in an inner cavity of the shell, the input end of the transmission assembly is connected with the output end of the winch motor, a hoisting winch is arranged at the output end of the transmission assembly, and a chain is erected on the hoisting winch. A control base is arranged at the end of the chain, a lifting hook is rotationally connected to the bottom of the control base, a stepless speed regulation knob is arranged on the front side of the control base, a control box is arranged on the outer side of the shell, the control box and the winch motor are arranged side by side, a control module is arranged in an inner cavity of the control box, and the control module is electrically connected to the winch motor and the stepless speed regulation knob. The rotating speed of the winch motor can be changed through the control module by rotating the stepless speed regulation knob, so that stepless speed regulation of the electric hoist is realized, and the electric hoist is further suitable for variable application scenes. The control box and the winch motor are arranged side by side, so that the electric hoist is more compact in structure and smaller in occupied space.

Description

Technical Field

[0001] The utility model relates to an electric hoist, in particular to an electric hoist with stepless speed regulation. Background Art

[0002] At present, a Chinese patent with the announcement number CN218754723U discloses an explosion-proof electric hoist, including a main body fixing frame, a winch assembly arranged on one side of the main body fixing frame, and a side protection assembly arranged on the other side of the main body fixing frame. The winch assembly includes a stranding roller, a transmission, a winch motor and a guide frame. The stranding roller is clamped on the main body fixing frame through a C-shaped frame, the stranding roller is connected to the output end of the transmission, and the output end of the winch motor is connected to the input end of the transmission to form a drive. The guide frame is slidably connected to the main body fixing frame, and a through hole is provided on the guide frame to penetrate the stranding wire. A driving wheel is provided in the main body fixing frame, and the driving motor is provided on the main body fixing frame and forms a driving setting corresponding to the driving wheel. The winch motor is provided with a controller, and the controller is provided with a control button, and the control button forms an electric control corresponding to the driving motor. However, the existing electric hoists mostly use a dual-speed control button to control the winch motor to run at a low speed or a high speed, which has the defect of being difficult to apply to various application scenarios. Summary of the invention

[0003] In view of this, the purpose of the utility model is to provide an electric hoist with stepless speed regulation, which can perform stepless speed regulation on the winch motor pole and can be suitable for a variety of application scenarios.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: an electric hoist with stepless speed regulation, comprising a shell, a winch motor is installed on the right side of the shell, and the output end of the winch motor extends into the inner cavity of the shell, a transmission assembly is arranged in the inner cavity of the shell, and the input end of the transmission assembly is connected with the output end of the winch motor, a hoisting winch is arranged at the output end of the transmission assembly, a chain is mounted on the hoisting winch, a control base is arranged at the end of the chain, a hook is rotatably connected to the bottom of the control base, a stepless speed regulation knob is arranged on the front side of the control base, a control box is arranged on the outside of the shell, the control box is side by side with the winch motor, a control module is arranged in the inner cavity of the control box, the control module is electrically connected to the winch motor and the stepless speed regulation knob, and the stepless speed regulation knob can change the speed of the winch motor through the control module.

[0005] Through the above technical solution, when in use, the speed of the winch motor can be changed through the control module by rotating the stepless speed control knob, so as to achieve stepless speed regulation of the electric hoist, and thus be suitable for various application scenarios. The control box and the winch motor are arranged side by side, making the structure of the above electric hoist more compact and occupying less space.

[0006] Preferably, control handles are provided on both the left and right sides of the control base, and the two control handles are symmetrical with the control base as the center.

[0007] Through the above technical solution, the hook can be controlled to move through the two control handles during use to connect with the object to be lifted, making the use of the above electric hoist more convenient.

[0008] Preferably, the transmission assembly includes a primary reduction pinion connected to the output end of the winch motor, a primary rotating shaft rotatably connected in the inner cavity of the shell, a primary reduction gear fixedly sleeved on the outside of the primary rotating shaft and meshing with the primary reduction pinion, a secondary reduction pinion fixedly sleeved on the outside of the primary rotating shaft, a secondary rotating shaft rotatably connected in the inner cavity of the shell, and a secondary reduction gear fixedly sleeved on the outside of the secondary rotating shaft, and the lifting winch is fixedly sleeved on the outside of the secondary rotating shaft.

[0009] Through the above technical solution, the first-stage reduction pinion cooperates with the first-stage reduction gear to reduce the speed of the winch motor once, and the second-stage reduction pinion cooperates with the second-stage reduction gear to reduce the speed of the winch motor twice, making the movement process of the hook easier to control.

[0010] Preferably, the output end of the winch motor passes through the left and right sides of the shell, and the primary reduction pinion gear is integrally formed with the output end of the winch motor.

[0011] Through the above technical solution, the pinion gear and the output shaft of the capstan motor are integrally formed, with high concentricity and high transmission efficiency.

[0012] Preferably, the secondary reduction pinion gear is integrally formed with the primary rotating shaft.

[0013] Through the above technical solution, the secondary reduction pinion is integrally formed with the primary rotating shaft, with high concentricity and transmission efficiency, and makes the disassembly and assembly of the above electric hoist more convenient.

[0014] Preferably, a transfer hole is opened at the center of the secondary rotating shaft, the output end of the winch motor passes through the transfer hole, and the output end of the winch motor is rotatably connected to the secondary rotating shaft.

[0015] Through the above technical solution, the secondary rotating shaft sleeve is arranged outside the output end of the winch motor, so that the structure of the above electric hoist is more compact and occupies less space.

[0016] Preferably, a limit spline is integrally formed on the outer side of the secondary rotating shaft, a spline groove is opened at the inner ring of the secondary reduction gear, and the limit spline is inserted in the spline groove.

[0017] Through the above technical solution, the limiting spline and the spline groove cooperate with each other, so that relative rotation is not easy to occur between the secondary rotating shaft and the secondary reduction gear, and the transmission efficiency is high.

[0018] Preferably, it also includes a right side baffle, which covers the right side of the winch motor and the right side of the control box.

[0019] Through the above technical solution, the right side cover covers the right side of the winch motor and the right side of the control box, which can not only protect the winch motor and the control box, but also limit the winch motor and the control box, thereby improving the connection stability between the winch motor and the shell, and the connection stability between the control box and the shell.

[0020] Preferably, an electronic brake is provided on the left side of the shell, the electronic brake sleeve is arranged on the outside of the output end of the winch motor, and the electronic brake is electrically connected to the control module.

[0021] Through the above technical solution, when in use, the control module can be used to drive the electronic brake to clamp the output end of the winch motor to achieve the purpose of stopping the machine.

[0022] Preferably, it also includes a left side shield, and the left side shield covers the electronic brake.

[0023] Through the above technical solution, the left side shield covers the electronic brake, which can be used to protect the electronic brake. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The structure of the embodiment is shown in FIG. Figure 1 ;

[0025] Figure 2 The structure of the embodiment is shown in FIG. Figure 2 ;

[0026] Figure 3 is a cross-sectional schematic diagram of an embodiment;

[0027] Figure 4 It is a partial schematic diagram of an embodiment.

[0028] Figure numerals: 1. Shell; 2. Winch motor; 3. Transmission assembly; 31. Primary reduction pinion; 32. Primary rotating shaft; 33. Primary reduction gearwheel; 34. Secondary reduction pinion; 35. Secondary rotating shaft; 36. Secondary reduction gearwheel; 4. Lifting winch; 5. Chain; 6. Control base; 7. Hook; 8. Stepless speed regulation knob; 9. Control box; 10. Control module; 11. Control handle; 12. Adapter hole; 13. Limit spline; 14. Spline groove; 15. Right side guard; 16. Electronic brake; 17. Left side guard. Implementation

[0029] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0030] An electric hoist with infinite speed regulation, such as Figures 1 to 4 As shown, it includes a hollow shell 1. A winch motor 2 is installed on the right side of the shell 1, and the output end of the winch motor 2 passes through the shell 1 from right to left. A transmission assembly 3 is arranged in the inner cavity of the shell 1, and the input end of the transmission assembly 3 is connected to the output end of the winch motor 2. A hoisting winch 4 is arranged at the output end of the transmission assembly 3, and a chain 5 is mounted on the hoisting winch 4. A control base 6 is arranged at the end of the chain 5, and a hook 7 is rotatably connected to the bottom of the control base 6. When in use, the winch motor 2 drives the hoisting winch 4 to rotate through the transmission assembly 3, and the hoisting winch 4 drives the control base 6 and the hook 7 to move through the chain 5 to hoist objects.

[0031] A stepless speed regulating knob 8 is provided on the front side of the control base 6. A control box 9 is provided on the outside of the housing 1, and the control box 9 is arranged side by side with the winch motor 2. A control module 10 is provided in the inner cavity of the control box 9, and the control module 10 is electrically connected to the winch motor 2 and the stepless speed regulating knob 8. The stepless speed regulating knob 8 can change the speed of the winch motor 2 through the control module 10. Control handles 11 are provided on both sides of the control base 6, and the two control handles 11 are symmetrical with the control base 6 as the center.

[0032] The transmission assembly 3 includes a primary reduction pinion 31 connected to the output end of the winch motor 2, a primary shaft 32 rotatably connected to the inner cavity of the housing 1, a primary reduction gear 33 fixedly sleeved on the outer side of the primary shaft 32 and meshing with the primary reduction pinion 31, a secondary reduction pinion 34 fixedly sleeved on the outer side of the primary shaft 32, a secondary shaft 35 rotatably connected to the inner cavity of the housing 1, a secondary reduction gear 36 fixedly sleeved on the outer side of the secondary shaft 35, and the hoisting winch 4 is fixedly sleeved on the outer side of the secondary shaft 35. The output end of the winch motor 2 runs through the left and right sides of the housing 1, and the primary reduction pinion 31 is integrally formed with the output end of the winch motor 2. The secondary reduction pinion 34 is integrally formed with the primary shaft 32. A transfer hole 12 is opened at the center of the secondary shaft 35, and the output end of the winch motor 2 passes through the transfer hole 12, and the output end of the winch motor 2 is rotatably connected to the secondary shaft 35. The outer side of the secondary rotating shaft 35 is integrally formed with a limit spline 13 , and the inner ring of the secondary reduction gear 36 is provided with a spline groove 14 , in which the limit spline 13 is inserted.

[0033] The housing 1 also includes a right side shield 15, which covers the right side of the winch motor 2 and the right side of the control box 9. The housing 1 is provided with an electronic brake 16 on the left side, which is sleeved on the outside of the output end of the winch motor 2 and is electrically connected to the control module 10. The housing 1 also includes a left side shield 17, which covers the electronic brake 16.

[0034] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementations. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. An electric hoist with stepless speed regulation, characterized by: The invention comprises a housing (1), a winch motor (2) is installed on the right side of the housing (1), and the output end of the winch motor (2) extends into the inner cavity of the housing (1), a transmission assembly (3) is arranged in the inner cavity of the housing (1), and the input end of the transmission assembly (3) is connected to the output end of the winch motor (2), a hoisting winch (4) is arranged at the output end of the transmission assembly (3), a chain (5) is mounted on the hoisting winch (4), a control base (6) is arranged at the end of the chain (5), and the control base (6) The bottom of the control base (6) is rotatably connected to a hook (7), the front side of the control base (6) is provided with a stepless speed regulating knob (8), the outer side of the shell (1) is provided with a control box (9), the control box (9) and the winch motor (2) are arranged side by side, and a control module (10) is provided in the inner cavity of the control box (9), the control module (10) is electrically connected to the winch motor (2) and the stepless speed regulating knob (8), and the stepless speed regulating knob (8) can change the rotation speed of the winch motor (2) through the control module (10).

2. The electric hoist with stepless speed regulation according to claim 1 is characterized in that: Control handles (11) are provided on both left and right sides of the control base (6), and the two control handles (11) are symmetrical with respect to the control base (6) as the center.

3. The electric hoist with stepless speed regulation according to claim 1 is characterized in that: The transmission assembly (3) comprises a primary reduction pinion (31) connected to the output end of the winch motor (2), a primary rotating shaft (32) rotatably connected to the inner cavity of the housing (1), a primary reduction gear (33) fixedly sleeved on the outer side of the primary rotating shaft (32) and meshing with the primary reduction pinion (31), a secondary reduction pinion (34) fixedly sleeved on the outer side of the primary rotating shaft (32), a secondary rotating shaft (35) rotatably connected to the inner cavity of the housing (1), and a secondary reduction gear (36) fixedly sleeved on the outer side of the secondary rotating shaft (35), and the hoisting winch (4) is fixedly sleeved on the outer side of the secondary rotating shaft (35).

4. The electric hoist with stepless speed regulation according to claim 3 is characterized in that: The output end of the winch motor (2) passes through the left and right sides of the housing (1), and the primary reduction pinion (31) is integrally formed with the output end of the winch motor (2).

5. The electric hoist with stepless speed regulation according to claim 4 is characterized in that: The secondary reduction pinion (34) is integrally formed with the primary rotating shaft (32).

6. The electric hoist with stepless speed regulation according to claim 5 is characterized in that: A transfer hole (12) is provided at the center of the secondary rotating shaft (35), the output end of the capstan motor (2) passes through the transfer hole (12), and the output end of the capstan motor (2) is rotationally connected to the secondary rotating shaft (35).

7. The electric hoist with stepless speed regulation according to claim 6 is characterized in that: The outer side of the secondary rotating shaft (35) is integrally formed with a limit spline (13), and the inner ring of the secondary reduction gear (36) is provided with a spline groove (14), and the limit spline (13) is inserted into the spline groove (14).

8. The electric hoist with stepless speed regulation according to claim 7 is characterized in that: It also includes a right side baffle (15), which covers the right side of the winch motor (2) and the right side of the control box (9).

9. The electric hoist with stepless speed regulation according to claim 8 is characterized in that: An electronic brake (16) is provided on the left side of the housing (1), the electronic brake (16) is sleeved on the outside of the output end of the winch motor (2), and the electronic brake (16) is electrically connected to the control module (10).

10. The electric hoist with stepless speed regulation according to claim 9 is characterized in that: It also comprises a left side blocking cover (17), wherein the left side blocking cover (17) covers the electronic brake (16).

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