Magnetic control ratchet clutch device

Abstract

The magnetic control ratchet wheel clutch device comprises an output shaft, a circular groove is formed in the output shaft in the axis direction, a hexagonal groove A is formed in the end face of the circular groove in the axis direction, an outer hexagonal ratchet wheel assembly is installed in the hexagonal groove A in a matched mode, and the outer hexagonal ratchet wheel assembly is in transmission connection with an inner hexagonal ratchet wheel assembly. The inner hexagonal ratchet wheel assembly is movably installed in the circular groove, the crank and the electric hexagonal transmission shaft drive the outer hexagonal ratchet wheel assembly and the inner hexagonal ratchet wheel assembly to interact so that power can be selectively transmitted, and manual separation of the device in the horizontal direction is achieved through the mutual repulsive acting force between homopolar magnets. Automatic separation and reunion of the electric end are achieved through one-way transmission between the inner hexagonal ratchet wheel assembly and the outer hexagonal ratchet wheel assembly, so that the device has the two-way manual and automatic separation function, and the working modes are diversified.

Description

Technical Field

[0001] The utility model relates to the technical field of clutches, and particularly to a magnetically controlled ratchet clutch device for a hand-electric integrated rotary cab lift pump. Background Art

[0002] In the existing technology, for example, a ratchet type one-way clutch disclosed in Chinese Patent Document CN207539214U has a spring and a spherical buffer body connected to the spring installed at the bottom of the meshing end of the pawl, and a compression spring for applying a pre-pressure towards the ratchet direction to the pawl is provided at the connection part between the tail end of the pawl and the pawl shaft. The compression spring is used to push the pawl to complete the meshing function.

[0003] However, this design has a complex structure and is not easy to operate, with a large number of components, high manufacturing cost, relatively large working noise affecting the user experience, and it can only complete the "disengagement" function in one direction and cannot achieve multi-directional separation work, resulting in a single working mode for the overall device.

[0004] Therefore, in view of the deficiencies of the existing technology, it is very necessary to provide a magnetically controlled ratchet clutch device to solve the deficiencies of the existing technology. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a magnetically controlled ratchet clutch device to avoid the deficiencies of the existing technology. Through the interaction between the external hexagonal ratchet component and the internal hexagonal ratchet component driven by a crank and an electric hexagonal transmission shaft, power can be selectively transmitted. The mutual repulsion force between like-pole magnets is used to achieve manual separation of the device in the horizontal direction, and the one-way transmission between the internal hexagonal ratchet component and the external hexagonal ratchet component is used to achieve automatic clutch of the electric end.

[0006] The above object of the utility model is achieved by the following technical means.

[0007] A magnetically controlled ratchet clutch device is provided, which includes an output shaft. A circular groove is axially opened inside the output shaft, and a hexagonal groove A is axially opened on the end face of the circular groove. An external hexagonal ratchet component is fitted and installed inside the hexagonal groove A. The external hexagonal ratchet component is in transmission connection with an internal hexagonal ratchet component. The internal hexagonal ratchet component is movably installed inside the circular groove. A motor hexagonal input shaft is fitted and installed inside the internal hexagonal ratchet component. A hole card is installed on the motor hexagonal input shaft, and the hole card is fixedly installed at the opening end of the circular groove. A tower spring A is installed between the hole card and the internal hexagonal ratchet component. A hexagonal groove B is axially opened at one end of the output shaft far from the circular groove, and a crank assembly is installed inside the hexagonal groove B.

[0008] Specifically, the external hexagonal ratchet assembly includes an external hexagonal ratchet body. A stepped through-hole is provided inside the external hexagonal ratchet body. A circular limiting groove is opened at the position corresponding to the output shaft of the stepped through-hole. A push rod is movably installed at the axis inside the circular limiting groove. One end of the push rod is installed with a magnet A, and the other end of the push rod is fixedly installed with a bowl-shaped plate. The bowl mouth of the bowl-shaped plate faces the internal hexagonal ratchet assembly, and the bowl bottom of the bowl-shaped plate faces the external hexagonal ratchet assembly. The caliber of the bowl mouth of the bowl-shaped plate is larger than the caliber of the hexagonal input shaft of the motor. A tower spring B is horizontally installed between the bowl-shaped plate and the hexagonal input shaft of the motor.

[0009] Furthermore, the internal hexagonal ratchet assembly includes an internal hexagonal ratchet body. The hexagonal through-hole of the internal hexagonal ratchet body is axially connected to the hexagonal input shaft of the motor. The ratchet body is slidably installed on the hexagonal input shaft of the motor through a sliding key. The internal hexagonal ratchet assembly is provided with an annular limiting groove A at one end close to the bowl-shaped plate, and the annular limiting groove A is fitted with the bowl-shaped plate.

[0010] The crank handle assembly includes a hexagonal crank handle. The hexagonal crank handle is fitted and installed inside the hexagonal groove B. A magnet B is installed at one end of the hexagonal crank handle close to the inside of the hexagonal groove A. A square hole is opened at the end of the hexagonal crank handle where the magnet B is installed. A spring is installed inside the square hole. One end of the spring is installed with a steel ball, and the steel ball is slidably connected to an annular limiting groove B, and the annular limiting groove B is opened inside the hexagonal groove B.

[0011] A split support is installed outside the output shaft. The split support includes two annular frames. The two annular frames are fixed by fasteners, and the two annular frames are respectively fixedly installed at both ends of the output shaft.

[0012] The hexagonal input shaft of the motor is a square shaft with a hexagonal structure, and the hexagonal input shaft of the motor is installed inside the circular groove.

[0013] The purpose of the present invention is to avoid the deficiencies of the prior art and provide a magnetically controlled ratchet clutch device, which solves the problems of large clutch noise, complex structure, high manufacturing cost and non-bidirectional separation of the existing ratchet clutch. At the same time, the device has a bidirectional manual and automatic separation function to realize diversified working modes. Description of the Drawings

[0014] The present invention is further described with the aid of the attached drawings, but the content in the drawings does not constitute any limitation to the present invention.

[0015] Figure 1 It is the overall structure diagram of a magnetically controlled ratchet clutch device of the present invention.

[0016] Figure 2 It is the partial structure diagram of a magnetically controlled ratchet clutch device of the present invention.

[0017] Figure 3It is a three-dimensional schematic diagram of the internal hexagonal ratchet component of a magnetically controlled ratchet clutch device of the present utility model.

[0018] Figure 4 It is a three-dimensional schematic diagram of the external hexagonal ratchet body of a magnetically controlled ratchet clutch device of the present utility model.

[0019] From Figures 1 to 4 Among them, it includes:

[0020] 1. Output shaft;

[0021] 11. Circular groove, 12. Hexagonal groove A, 13. Hexagonal groove B, 14. Circular limiting groove, 15. Annular limiting groove B;

[0022] 2. External hexagonal ratchet component;

[0023] 21. External hexagonal ratchet body, 22. Step-shaped through hole, 23. Push rod, 24. Magnet A, 25. Bowl-shaped plate, 26. Tower spring B;

[0024] 3. Internal hexagonal ratchet component;

[0025] 31. Internal hexagonal ratchet body, 32. Annular limiting groove A;

[0026] 4. Motor hexagonal input shaft;

[0027] 5. Hole card;

[0028] 6. Tower spring A;

[0029] 7. Crank handle assembly;

[0030] 71. Hexagonal crank handle, 72. Magnet B, 73. Square hole, 74. Spring, 75. Steel ball;

[0031] 8. Split support;

[0032] 9. Annular frame. Specific embodiments

[0033] The present utility model will be further described in conjunction with the following embodiments.

[0034] Embodiment 1.

[0035] As Figures 1 - 4 shown, a magnetically controlled ratchet clutch device includes an output shaft 1. A circular groove 11 is axially opened inside the output shaft 1. A hexagonal groove A12 is axially opened on the end face of the circular groove 11. An external hexagonal ratchet component 2 is fitted and installed inside the hexagonal groove A12. The external hexagonal ratchet component 2 is drivingly connected to an internal hexagonal ratchet component 3.

[0036] The external hexagonal ratchet assembly 2 installed inside the output shaft 1 is drivingly connected to the internal hexagonal ratchet assembly 3, enabling the internal hexagonal ratchet assembly 3 to drive the output shaft 1 to rotate axially.

[0037] As Figures 1 - 4 shown, the internal hexagonal ratchet assembly 3 is movably installed inside the circular groove 11. The internal hexagonal ratchet assembly 3 is internally fitted with a motor hexagonal input shaft 4. A hole card 5 is installed on the motor hexagonal input shaft 4. The hole card 5 is fixedly installed at the opening end of the circular groove 11. A tower spring A 6 is installed between the hole card 5 and the internal hexagonal ratchet assembly 3.

[0038] The motor hexagonal input shaft 4 in driving connection with the internal hexagonal ratchet assembly 3 serves as the driving part, and the output shaft 1 in driving connection with the external hexagonal ratchet assembly 2 serves as the driven part. The driving part is electrically driven to rotate the driven part axially.

[0039] When the motor hexagonal input shaft 4 rotates clockwise, it can drive the internal hexagonal ratchet assembly 3 to rotate clockwise and be drivingly connected to the external hexagonal ratchet assembly 2. The external hexagonal ratchet assembly 2 drives the output shaft 1 to rotate, completing the "engagement" action of the device. When the motor hexagonal input shaft 4 rotates counterclockwise, it drives the internal hexagonal ratchet assembly 3 to rotate counterclockwise and cannot be drivingly connected to the external hexagonal ratchet assembly 2, completing the "disengagement" action of the device.

[0040] Under the action of the tower spring A 6, the internal hexagonal ratchet always remains in contact with the external hexagonal ratchet, ensuring the stability of the transmission when the internal hexagonal ratchet assembly 3 is axially driven on the motor hexagonal input shaft 4. Moreover, the extensibility of the tower spring A 6 can ensure the transmission fit to reduce the working noise and improve the user experience.

[0041] As Figures 1 - 3 shown, at one end of the output shaft 1 far from the circular groove 11, a hexagonal groove B13 is axially formed. A crank handle assembly 7 is installed inside the hexagonal groove B13.

[0042] By manually controlling the mating connection between the crank handle assembly 7 inside the output shaft 1 and the hexagonal groove B13, the output shaft 1 can be driven to rotate, realizing the function of manually separating the driving part and the driven part. The structure is simple and easy to operate, making no noise and no wear during the "disengagement" process of the device.

[0043] As Figures 1 - 2 shown, the external hexagonal ratchet assembly 2 includes an external hexagonal ratchet body 21. A stepped through hole 22 is provided inside the external hexagonal ratchet body 21. A circular limiting groove 14 is formed corresponding to the output shaft 1 in the stepped through hole 22. A push rod 23 is movably installed at the axis inside the circular limiting groove 14. A magnet A 24 is installed at one end of the push rod 23, and a bowl-shaped plate 25 is fixedly installed at the other end of the push rod 23.

[0044] Driven by the crank handle assembly 7, the push rod 23 equipped with the magnet A 24 can move horizontally inside the stepped through hole 22 of the external hexagonal ratchet assembly 2.

[0045] As Figures 1 - 4 shown, the bowl mouth of the bowl-shaped plate 25 faces the internal hexagonal ratchet assembly 3, the bowl bottom of the bowl-shaped plate 25 faces the external hexagonal ratchet assembly 2, the caliber of the bowl mouth of the bowl-shaped plate 25 is larger than the caliber of the hexagonal input shaft 4 of the motor, and a tower spring B 26 is horizontally installed between the bowl-shaped plate 25 and the hexagonal input shaft 4 of the motor.

[0046] The bowl-shaped plate 25 fixedly installed on the push rod 23 can push the internal hexagonal ratchet assembly 3 to separate the internal hexagonal ratchet assembly 3 from the external hexagonal ratchet assembly 2, completing the "separation" action of the device. The tower spring B 26 can buffer the movement of the bowl-shaped plate 25 relative to the hexagonal input shaft 4 of the motor, reducing the working noise and improving the user experience.

[0047] As Figures 1 - 3 shown, the internal hexagonal ratchet assembly 3 includes an internal hexagonal ratchet body 31, and the hexagonal through hole of the internal hexagonal ratchet body 31 is axially connected to the hexagonal input shaft 4 of the motor.

[0048] The hexagonal through hole inside the internal hexagonal ratchet assembly 3 is axially connected to the hexagonal input shaft 4 of the motor, and the internal hexagonal ratchet assembly 3 is driven to rotate by the hexagonal input shaft 4 of the motor.

[0049] As Figures 1 - 4 shown, the ratchet body is slidably installed on the hexagonal input shaft 4 of the motor through a feather key. The internal hexagonal ratchet assembly 3 is provided with an annular limiting groove A 32 at one end close to the bowl-shaped plate 25, and the annular limiting groove A 32 is fitted with the bowl-shaped plate 25.

[0050] By fitting and connecting the bowl-shaped plate 25 through the annular limiting groove A 32 on the internal hexagonal ratchet assembly 3, the transmission stability between the internal hexagonal ratchet assembly 3 and the external hexagonal ratchet assembly 2 can be increased.

[0051] As Figures 1 - 3 shown, the crank handle assembly 7 includes a hexagonal crank handle 71, the hexagonal crank handle 71 is fitted and installed inside the hexagonal groove B13, a magnet B 72 is installed at one end of the hexagonal crank handle 71 close to the inside of the hexagonal groove A12. The magnet A 24 and the magnet B 72 are like-pole magnets. A square hole 73 is opened at the end of the hexagonal crank handle 71 where the magnet B 72 is installed, a spring 74 is installed inside the square hole 73, one end of the spring 74 is installed with a steel ball 75, and the steel ball 75 is slidably connected to an annular limiting groove B15, and the annular limiting groove B15 is opened inside the hexagonal groove B13.

[0052] The hexagonal crank 71 in the crank assembly 7 can control the bidirectional rotation of the output shaft 1. Moreover, when the hexagonal crank 71 equipped with the magnet B 72 moves horizontally inwards within the hexagonal groove B13, the push rod 23 equipped with the magnet A 24 can be pushed by the repulsive force between the like poles of the magnets to drive the bowl-shaped plate 25, and the bowl-shaped plate 25 will push the inner hexagonal ratchet body 31 away from the outer hexagonal ratchet body 21, achieving the purpose of driving connection within the manual separation device.

[0053] This device utilizes the repulsive force between the like poles of the magnets to achieve the function of manual separation. The structure is simple and easy to operate, making there be no noise and no wear during the "separation" process. The annular limiting groove B15 limits the steel ball 75 within the crank assembly 7, defining the position of the magnet B 72 within the hexagonal groove B13, making the manual separation of the device easy to operate.

[0054] As Figures 1 - 4 shown, a split support 8 is installed outside the output shaft 1. The split support 8 includes two annular frames 9, and the two annular frames 9 are fixed by fasteners. The two annular frames 9 are respectively fixedly installed at both ends of the output shaft 1. Through the split support 8, the disassembly can be facilitated while ensuring the stability of the device, making the structure simple and easy to operate.

[0055] The purpose of the present utility model is to avoid the deficiencies of the prior art and provide a magnetically controlled ratchet clutch device. Through the interaction between the outer hexagonal ratchet assembly 2 and the inner hexagonal ratchet assembly 3 driven by the crank and the electric hexagonal drive shaft, the power can be selectively transmitted, solving the problems of relatively large clutch noise, complex structure, high manufacturing cost, and non-bidirectional separation of the existing ratchet clutch. The repulsive force between the like poles of the magnets is utilized to achieve the manual separation of the device in the horizontal direction, and the one-way drive between the inner hexagonal ratchet assembly 3 and the outer hexagonal ratchet assembly 2 is utilized to achieve the automatic clutch at the electric end, enabling the device to have the bidirectional manual and automatic separation functions and realizing the diversification of working modes.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit the protection scope of the present utility model. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present utility model.

Claims

1. A magnetically controlled ratchet clutch device, characterized in that: It includes an output shaft, a circular groove is opened inside the output shaft along the axial direction, a hexagonal groove A is opened on the end face of the circular groove along the axial direction, an external hexagonal ratchet assembly is installed in the hexagonal groove A, the external hexagonal ratchet assembly is transmission-connected with an internal hexagonal ratchet assembly, the internal hexagonal ratchet assembly is movably installed in the circular groove, a hexagonal input shaft of a motor is installed in the internal hexagonal ratchet assembly, a hole card is installed on the hexagonal input shaft of the motor, the hole card is fixedly installed at the open end of the circular groove, a tower spring A is installed between the hole card and the internal hexagonal ratchet assembly, a hexagonal groove B is opened on the end of the output shaft away from the circular groove along the axial direction, and a crank assembly is installed in the hexagonal groove B.

2. A magnetically controlled ratchet clutch device according to claim 1, characterized in that: The external hexagonal ratchet assembly includes an external hexagonal ratchet body, a stepped through hole is provided inside the external hexagonal ratchet body, a circular limiting groove is opened in the stepped through hole corresponding to the output shaft, a push rod is movably installed at the axis of the inner part of the circular limiting groove, a magnet A is installed at one end of the push rod, and a bowl-shaped plate is fixedly installed at the other end of the push rod, the bowl mouth of the bowl-shaped plate faces the internal hexagonal ratchet assembly, the bowl bottom of the bowl-shaped plate faces the external hexagonal ratchet assembly, the bowl mouth diameter of the bowl-shaped plate is larger than the diameter of the hexagonal input shaft of the motor, and a tower spring B is horizontally installed between the bowl-shaped plate and the hexagonal input shaft of the motor.

3. A magnetically controlled ratchet clutch device according to claim 2, characterized in that: The hexagonal ratchet assembly includes a hexagonal ratchet body, a hexagonal through hole of the hexagonal ratchet body axially connected to the hexagonal input shaft of the motor, and the ratchet body is slidably installed on the hexagonal input shaft of the motor through a sliding key. The hexagonal ratchet assembly is provided with an annular limit groove A at one end close to the bowl-shaped plate, and the annular limit groove A cooperates to install the bowl-shaped plate.

4. A magnetically controlled ratchet clutch device according to claim 1, characterized in that: The crank assembly includes a hexagonal crank, which is installed in the hexagonal groove B. A magnet B is installed on the end of the hexagonal crank close to the inside of the hexagonal groove A. A square hole is opened at the end of the hexagonal crank on which the magnet B is installed. A spring is installed in the square hole. A steel ball is installed at one end of the spring. The steel ball is slidably connected to an annular limit groove B, and the annular limit groove B is opened inside the hexagonal groove B.

5. The magnetically controlled ratchet clutch device according to claim 1, characterized in that: A split support is installed outside the output shaft, and the split support includes two annular frames, which are fixed by fasteners, and the two annular frames are respectively fixedly installed at two ends of the output shaft.

6. The magnetically controlled ratchet clutch device according to claim 1, characterized in that: The hexagonal input shaft of the motor is a square shaft with a hexagonal structure, and the hexagonal input shaft of the motor is installed inside the circular groove.

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