Handle rotating device with adjustable damping

Abstract

The invention relates to a damping-adjustable handle rotating device which comprises a shaft seat, a fixing seat, a fixing plate and a steering sensor, the shaft seat is mounted on the fixing seat, the fixing plate is mounted at the bottom of the fixing seat, the damping-adjustable handle rotating device further comprises a damping adjusting assembly capable of adjusting a damping value, and the damping adjusting assembly is mounted between the fixing seat and the fixing plate. The damping adjusting assembly comprises a damping movable piece and a damping fixed piece, the damping movable piece and the damping fixed piece are arranged in a matched mode, the damping fixed piece is installed between the damping movable piece and the fixing plate, and the steering sensor is installed at the bottom of the fixing plate, partially located above the fixing plate and in contact with the damping movable piece. The handle rotating device is simple and ingenious in structure, by additionally arranging the damping assembly capable of adjusting the damping value, the overall stability of the handle rotating device is high, the operation efficiency is improved, meanwhile, the use experience of a user is enhanced, and application and popularization of the handle rotating device capable of adjusting the damping value in the market are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of power steering devices, in particular to a handle rotating device with adjustable damping. Background Art

[0002] With the continuous improvement of industrial automation, people have put forward higher requirements for the comfort, safety and reliability of vehicle driving, especially for forklifts, transport trucks and stackers used to transport goods in factories. Since these vehicles need to transport heavy goods and work for a long time, when using them, if they only rely on the mechanical steering structure to achieve steering, it is not only very laborious, which increases the labor intensity of workers and reduces work efficiency, but also the operating handle is easy to shake when driving on bumpy roads, making the vehicle difficult to control.

[0003] In order to solve the above technical problems, a Chinese invention patent with authorization announcement number CN101734280 and authorization announcement date June 8, 2011 discloses an electronically controlled steering device for a forklift, which adopts a structure composed of a steering handle, a steering shaft, a gear box, a transmission structure and a sensor, solves the problems existing in manual operation and reduces the labor intensity of workers. However, its structure also has defects: the steering handle transmits the signal to the sensor through the steering shaft, and then through the gear box and the transmission structure. There are many intermediate links and the process is complicated. Due to the inevitable errors in each link, the initial signal given has errors, which in turn causes inaccurate operation. In addition, its structure is very complicated, and it is troublesome to install and debug. The production cost is very high, which affects the user experience and is not conducive to the promotion and application of the above electronically controlled steering device in the market.

[0004] Furthermore, in order to solve the problems existing in the above-mentioned technology, a Chinese utility model patent with authorization announcement number CN202499177U and authorization announcement date of October 24, 2012 discloses an electronic power steering control device, specifically, it includes an axle seat and a fixed seat, the axle seat includes a seat body, the upper end of the seat body has a connecting sleeve for connecting with a steering handle, the upper surface of the connecting sleeve is provided with two connecting rods, the lower end of the seat body has a connecting column, the fixed seat includes a flange, a connecting pipe is fixed on the flange, a steering sensor is installed at the lower end of the connecting pipe, the connecting column is inserted into the connecting pipe, and is fixedly connected to the rotating shaft of the steering sensor. The use of the above-mentioned control device can reduce the intermediate transmission process, making the steering more precise, and at the same time, the structure is simple and the cost is low.

[0005] However, in actual operation, since the damping value of the electronic power steering control device cannot be adjusted, if the damping value is set too high, the steering control device may be too stable, lack the necessary flexibility, and be unable to respond to changes quickly; if the damping value is set too low, the steering control device may be too active, prone to excessive vibration or oscillation, thereby affecting the user experience and being detrimental to the promotion and application of the electronic power steering control device in the market. Summary of the invention

[0006] In order to overcome the defects in the above-mentioned prior art, the object of the present invention is to provide a handle rotating device with adjustable damping. The handle rotating device has a simple and ingenious structure. By adding a damping component that can adjust the damping value, the overall stability of the handle rotating device is high, which improves the operating efficiency and enhances the user experience, which is conducive to the promotion and application of the above-mentioned handle rotating device with adjustable damping in the market.

[0007] In order to achieve the above-mentioned invention objectives, the present invention adopts the following technical solutions: a handle rotation device with adjustable damping, comprising an axle seat, a fixed seat, a fixed plate and a steering sensor, wherein the axle seat is installed on the fixed seat, the fixed plate is installed on the bottom of the fixed seat, and also comprises a damping adjustment component capable of adjusting the damping value, the damping adjustment component is installed between the fixed seat and the fixed plate, the damping adjustment component comprises a damping movable member and a damping fixed member, the damping fixed member is adaptively arranged with the damping movable member, and the damping fixed member is installed between the damping movable member and the fixed plate, the steering sensor is installed at the bottom of the fixed plate and is partially located above the fixed plate and is arranged in contact with the damping movable member.

[0008] As a preferred solution of the present invention, the top of the steering sensor has a sensor contact portion, the sensor contact portion is arranged through the fixing plate and a flexible connection block is sleeved on the passed portion, and the flexible connection block is arranged in contact with the damping movable member.

[0009] As a preferred solution of the present invention, a gasket and a spring are further installed between the damping stator and the fixing plate, and the gasket is arranged above the spring.

[0010] As a preferred solution of the present invention, the gasket and the spring are both arranged in a wave shape.

[0011] As a preferred solution of the present invention, the damping movable member is cylindrical and has a reserved position at the center for placing the flexible connecting block. The upper surface of the damping movable member is cut to form an annular groove for placing the shaft elastic retaining ring.

[0012] As a preferred solution of the present invention, the damping stator is cylindrical and has a positioning groove formed on the outer wall surface, and a positioning sleeve is provided in the positioning groove.

[0013] As a preferred solution of the present invention, the shaft seat includes an upper shaft seat portion, a middle shaft seat portion and a lower shaft seat portion, the upper shaft seat portion is a hollow structure and an shaft seat connecting hole is formed on the wall surface, a connecting piece that can be connected to the handle seat shaft is passed through the shaft seat connecting hole, the middle shaft seat portion is connected between the upper shaft seat portion and the lower shaft seat portion, and the lower shaft seat portion is used to connect to the fixed seat.

[0014] As a preferred solution of the present invention, the fixing seat comprises a seat body, a mounting position for mounting the shaft seat is formed at the center of the seat body, and a seat body reinforcement portion is integrally formed at the edge of the seat body.

[0015] As a preferred solution of the present invention, a bearing is provided at the contact point between the shaft seat and the fixing seat.

[0016] As a preferred solution of the present invention, the shaft seat and the handle seat are connected via a pin.

[0017] Compared with the prior art, the beneficial effects of the present invention are: a handle rotating device with adjustable damping in the present invention has a simple and ingenious structure. By arranging a damping adjustment component that can adaptively adjust the damping value between the fixed seat and the fixed plate, the probability of the damping value of the handle rotating device being too large or too small during use can be reduced, thereby ensuring the stability of the handle rotating device during use, enhancing the user's experience, and being conducive to the promotion and application of the above-mentioned handle rotating device in the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a handle rotating device with adjustable damping in an embodiment of the present invention; Figure 2 It is a schematic diagram of the structural disassembly of a handle rotating device with adjustable damping in an embodiment of the present invention; Figure 3 is a schematic structural diagram of an axle seat in an embodiment of the present invention; Figure 4 is a schematic structural diagram of a fixing base in an embodiment of the present invention; Figure 5 is a schematic structural diagram of a fixing plate in an embodiment of the present invention; Figure 6 is a schematic diagram of the structure of a steering sensor in an embodiment of the present invention; Figure 7 is a schematic structural diagram of a damping movable member in an embodiment of the present invention; Figure 8 is a schematic structural diagram of a damping stator in an embodiment of the present invention; Fig. 9 The invention is a schematic diagram of the installation of a handle rotating device with adjustable damping and a handle seat in an embodiment of the invention.

[0019] Figure markings: 1. axle seat; 1-1. upper part of axle seat; 1-2. middle part of axle seat; 1-3. lower part of axle seat; 1-4. axle seat connecting hole; 2. fixed seat; 2-1. seat body; 2-2. mounting position; 2-3. seat body reinforcement part; 3. fixing plate; 4. steering sensor; 4-1. sensor contact part; 5. damping movable part; 5-1. reserved position; 5-2. annular groove; 6. damping fixed part; 6-1. positioning groove; 7. gasket; 8. spring; 9. flexible connecting block; 10. elastic retaining ring for shaft; 11. positioning sleeve; 12. bearing; 13. handle seat. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described below by the specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0022] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0023] Example: Figures 1 to 9As shown, a handle rotation device with adjustable damping is mainly composed of an axle seat 1, a fixed seat 2, a fixed plate 3 and a steering sensor 4. The above-mentioned axle seat 1 is mainly arranged to facilitate connection with the handle seat 13, or the steering handle can be directly installed on the axle seat 1 and arranged in coordination with the axle seat 1. In order to ensure the stability of the axle seat 1 during installation and use, the above-mentioned axle seat 1 is installed on the above-mentioned fixed seat 2. Specifically, the above-mentioned axle seat 1 includes an axle seat upper part 1-1, an axle seat middle part 1-2 and an axle seat lower part 1-3. The above-mentioned axle seat upper part 1-1 is a hollow structure and an axle seat connecting hole 1-4 is formed on the wall surface. A connecting piece capable of being axially connected to the handle seat 13 is penetrated in the above-mentioned axle seat connecting hole 1-4. The above-mentioned axle seat middle part 1-2 is connected between the above-mentioned axle seat upper part 1-1 and the above-mentioned axle seat lower part 1-3. The above-mentioned axle seat lower part 1-3 is used to connect the above-mentioned fixed seat 2. The fixed seat 2 includes a seat body 2-1, and a mounting position 2-2 for mounting the shaft seat 1 is formed at the center of the seat body 2-1 to reduce the difficulty of installation. Furthermore, in order to enhance the structural strength of the fixed seat 2 itself, a seat body reinforcement part 2-3 is integrally formed at the edge of the seat body 2-1. The seat body reinforcement part 2-3 is protruding from the surface of the seat body 2-1, and there are multiple seat body reinforcement parts 2-3, and the multiple seat body reinforcement parts 2-3 are equidistantly distributed along the circumference of the seat body 2-1.

[0024] A bearing 12 is provided at the contact point between the shaft seat 1 and the fixing seat 2. The bearing 12 can significantly reduce the friction between the contact surfaces of the shaft seat 1 and the fixing seat 2, reduce energy loss, and improve mechanical efficiency. The bearing 12 can withstand axial, radial or combined loads, thereby ensuring the stability of the handle and the reliability of the mechanical structure. The bearing 12 in this embodiment is a deep groove ball bearing, which has a high load-bearing capacity and a deep groove raceway, and can withstand a high radial load and a certain axial load.

[0025] In order to provide additional support for the above-mentioned fixing seat 2 and facilitate the subsequent installation of the steering sensor 4, the above-mentioned fixing plate 3 is installed at the bottom of the above-mentioned fixing seat 2 in this embodiment. In order to be able to change the magnitude of the damping force in the rotational motion, a damping adjustment component capable of adjusting the damping value is also provided in the handle rotation device in this embodiment. In order to make the overall structure of the handle rotation device compact and to prevent external equipment from affecting the damping adjustment component, in this embodiment, the bottom of the above-mentioned fixing seat 2 is hollowed out, and the above-mentioned damping adjustment component is installed in the hollow part, and the above-mentioned damping adjustment component is installed between the above-mentioned fixing seat 2 and the above-mentioned fixing plate 3, that is, the damping adjustment component is covered inside.

[0026] Specifically, the damping adjustment assembly includes a damping movable member 5 and a damping fixed member 6, the damping fixed member 6 is adaptively arranged with the damping movable member 5, the damping movable member 5 is installed above the damping fixed member 6, and the damping fixed member 6 is installed between the damping movable member 5 and the fixed plate 3, the steering sensor 4 is installed at the bottom of the fixed plate 3 and is partially located above the fixed plate 3 and is arranged in contact with the damping movable member 5.

[0027] The steering sensor 4 has a sensor contact portion 4-1 at the top, the sensor contact portion 4-1 is arranged through the fixing plate 3 and a flexible connection block 9 is provided on the outer surface of the passing portion, and the flexible connection block 9 is arranged in contact with the damping movable member 5. The arrangement of the flexible connection block 9 can protect the sensor contact portion 4-1 from mechanical shock and vibration, and extend the service life of the steering sensor 4. The flexible connection block 9 can also absorb and isolate the vibration generated by the steering operation, reduce the interference to the steering sensor 4, and improve the stability and accuracy of the signal.

[0028] A gasket 7 and a spring 8 are also installed between the damping fixed member 6 and the fixed plate 3. The gasket 7 is arranged above the spring 8. The spring 8 can provide a certain damping effect, control the movement speed of the damping fixed member 6, and improve the dynamic response of the system. The gasket 7 can adjust the gap between the damping fixed member 6 and the fixed plate 3 to ensure the correct fit and movement between the components. In this embodiment, the positive pressure of the spring 8 can be adjusted by applying pressure on the handle to achieve the change of the friction force on the friction pair of the damping movable member 5 and the damping fixed member 6, thereby changing the magnitude of the damping force in the rotational motion and adapting to the demand for damping force in different occasions. The damping force value can be set according to the pressure of the handle pressing downward, which is convenient and flexible; when rotating, the user releases the handle, that is, does not apply pressure to the handle, and the damping force value in the process is constant, thereby ensuring the stability of the user during the operation. The gasket 7 and the spring 8 are both arranged in a wave shape, and the wave design provides additional elasticity, so that the gasket 7 and the spring 8 can better adapt to and absorb pressure changes, and the wave spring will produce a damping effect during the movement, which helps to control vibration and noise.

[0029] The damping movable member 5 is cylindrical and has a reserved position 5-1 at the center for placing the flexible connection block 9, so as to ensure that the flexible connection block 9 interacts with the damping movable member 5 in the correct position to provide precise force transmission and control. The cylindrical design of the damping movable member 5 can optimize space utilization and make the entire system more compact. The existence of the reserved position 5-1 allows the flexible connection block 9 to move within a certain range, which helps to absorb shock and vibration while maintaining the flexibility of the structure. The annular groove 5-2 formed by cutting provides a clear installation position for the shaft elastic retaining ring 10, simplifying the assembly process. The upper surface of the damping movable member 5 is cut to form an annular groove 5-2 for placing the shaft elastic retaining ring 10, simplifying the assembly process. The shaft elastic retaining ring 10 is placed in the annular groove 5-2, which can fix the position of the damping movable member 5 relative to other components and guide its movement. The shaft elastic retaining ring 10 can also provide a certain preload force for the system, improve the contact conditions between components, and improve the overall stiffness.

[0030] The damping fixed member 6 is cylindrical and has a positioning groove 6-1 formed on the outer wall surface. A positioning sleeve 11 is arranged in the positioning groove 6-1. The positioning groove 6-1 and the positioning sleeve 11 together provide precise circumferential positioning for the damping fixed member 6 to ensure its correct alignment with the damping movable member 5. The positioning sleeve 11 can also fix the position of the damping fixed member 6 to prevent it from circumferential movement during operation.

[0031] The above-mentioned axle seat 1 and the handle seat 13 are connected by a pin shaft. Specifically, a connecting hole is opened on the side of the axle seat 1. The connection between the handle seat 13 is achieved by inserting a pin shaft and other connecting parts in the connecting hole, and then the steering handle is installed in the handle seat 13. The steering handle is connected to the steering sensor 4 through the axle seat 1. It has a simple structure and low cost, reduces the intermediate transmission process, and makes the steering more precise. In addition, an adjustment component capable of adjusting the damping value is arranged between the fixed seat 2 and the fixed plate 3, so that the handle has high stability and good adaptability during operation, thereby enhancing the user experience and facilitating the promotion and application of the above-mentioned handle steering device in the market.

[0032] A handle rotating device with adjustable damping is provided in this embodiment. The handle rotating device has a simple and ingenious structure. By arranging a damping adjustment component that can adaptively adjust the damping value between the fixed seat 2 and the fixed plate 3, the probability of the damping value being too large or too small during the use of the handle rotating device can be reduced, thereby ensuring the stability of the handle rotating device during use, enhancing the user experience, and being conducive to the promotion and application of the above-mentioned handle rotating device in the market.

[0033] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0034] Although the following terms are used more frequently in this article: 1, shaft seat; 1-1, upper part of shaft seat; 1-2, middle part of shaft seat; 1-3, lower part of shaft seat; 1-4, shaft seat connecting hole; 2, fixed seat; 2-1, seat body; 2-2, mounting position; 2-3, seat body reinforcement part; 3, fixed plate; 4, steering sensor; 4-1, sensor contact part; 5, damping moving part; 5-1, reserved position; 5-2, annular groove; 6, damping fixed part; 6-1, positioning groove; 7, gasket; 8, spring; 9, flexible connecting block; 10, shaft elastic ring; 11, positioning sleeve; 12, bearing; 13, handle seat, etc., the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A handle rotating device with adjustable damping, characterized in that: The invention comprises an axle seat (1), a fixing seat (2), a fixing plate (3) and a steering sensor (4), wherein the axle seat (1) is mounted on the fixing seat (2), the fixing plate (3) is mounted on the bottom of the fixing seat (2), and further comprises a damping adjustment component capable of adjusting a damping value, the damping adjustment component is mounted between the fixing seat (2) and the fixing plate (3), the damping adjustment component comprises a damping movable member (5) and a damping fixed member (6), the damping fixed member (6) is arranged to match the damping movable member (5), and the damping fixed member (6) is mounted between the damping movable member (5) and the fixing plate (3), and the steering sensor (4) is mounted on the bottom of the fixing plate (3) and is partially located above the fixing plate (3) and is arranged in contact with the damping movable member (5).

2. A handle rotating device with adjustable damping according to claim 1, characterized in that: The steering sensor (4) has a sensor contact portion (4-1) at the top, the sensor contact portion (4-1) is arranged through the fixing plate (3) and a flexible connection block (9) is sleeved on the passed portion, and the flexible connection block (9) is arranged in contact with the damping movable member (5).

3. The handle rotating device with adjustable damping according to claim 2, characterized in that: A gasket (7) and a spring (8) are also installed between the damping fixed member (6) and the fixing plate (3), and the gasket (7) is arranged above the spring (8).

4. The handle rotating device with adjustable damping according to claim 3, characterized in that: The gasket (7) and the spring (8) are both arranged in a wave shape.

5. The handle rotating device with adjustable damping according to claim 4, characterized in that: The damping movable member (5) is cylindrical and has a reserved position (5-1) at the center for placing the flexible connection block (9). The upper surface of the damping movable member (5) is cut to form an annular groove (5-2) for placing the shaft elastic retaining ring (10).

6. The handle rotating device with adjustable damping according to claim 5, characterized in that: The damping fixed piece (6) is arranged in a cylindrical shape and has a positioning groove (6-1) formed on its outer wall surface. A positioning sleeve (11) is arranged in the positioning groove (6-1).

7. The handle rotating device with adjustable damping according to claim 1, characterized in that: The shaft seat (1) comprises a shaft seat upper portion (1-1), a shaft seat middle portion (1-2) and a shaft seat lower portion (1-3); the shaft seat upper portion (1-1) is a hollow structure and has a shaft seat connecting hole (1-4) formed on the wall surface; a connecting piece capable of being connected to a handle seat shaft is passed through the shaft seat connecting hole (1-4); the shaft seat middle portion (1-2) is connected between the shaft seat upper portion (1-1) and the shaft seat lower portion (1-3); and the shaft seat lower portion (1-3) is used to connect to the fixing seat (2).

8. The handle rotating device with adjustable damping according to claim 1, characterized in that: The fixing seat (2) comprises a seat body (2-1), a mounting position (2-2) for mounting the shaft seat (1) is formed at the center of the seat body (2-1), and a seat body reinforcement portion (2-3) is integrally formed at the edge of the seat body (2-1).

9. The handle rotating device with adjustable damping according to claim 1, characterized in that: A bearing (12) is provided at the contact point between the shaft seat (1) and the fixing seat (2).

10. The handle rotating device with adjustable damping according to claim 1, characterized in that: The shaft seat (1) and the handle seat (13) are connected via a pin shaft.

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