Steering gear assembly and engineering machinery

Abstract

The utility model relates to a steering gear box, in particular to a steering gear box assembly and engineering machinery, the steering gear box assembly comprises a steering gear box, the steering gear box comprises a steering gear box shaft and a steering rack used for installing the steering gear box shaft, and a driving gear is fixedly installed on the steering gear box shaft. An angle sensor and a driven gear meshed with the driving gear are installed on the direction machine frame, and a rotor of the angle sensor is connected with a rotating shaft of the driven gear. According to the steering gear box, the angle sensor is installed on the steering gear box so that the rotating angle and speed of the steering gear box can be obtained when the steering gear box conducts steering operation, and the torque of rotating a steering wheel can be obtained when the torque sensor is installed so that the operation habit of a driver can be judged; in order to improve or adjust power-assisted steering parameters, the steering performance of the engineering machinery is improved.

Description

Technical Field

[0001] The utility model relates to a steering machine, more specifically, to a steering machine assembly and engineering machinery. Background Art

[0002] Engineering machinery is a key equipment for infrastructure construction. Wheeled engineering machinery is widely used in the infrastructure field for its product diversity and flexible maneuverability, and the performance of the whole machine is the focus of customer attention. Steering performance is an important indicator of wheeled engineering machinery products. Excellent steering performance should have the characteristics of stability, accuracy, lightness, and quietness. In product research and development and improvement, it is necessary to obtain data describing steering performance, such as steering wheel rotation angle, rotation speed, torque, etc.; in the intelligent control of engineering machinery, it is also necessary to obtain these data to judge the driver's operating habits to adjust the machine parameters, thereby improving the machine's controllability and control comfort. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a steering machine assembly and an engineering machine to obtain parameters describing the steering performance.

[0004] The utility model provides a technical solution for achieving the purpose: a steering machine assembly, comprising a steering machine, wherein the steering machine comprises a steering machine shaft and a steering machine frame for mounting the steering machine shaft, a driving gear is fixedly mounted on the steering machine shaft, an angle sensor and a driven gear meshing with the driving gear are mounted on the steering machine frame, and a rotor of the angle sensor is connected to a rotating shaft of the driven gear.

[0005] In the steering gear assembly of the utility model, the steering gear frame includes a support cylinder sleeved with the steering gear shaft, the driving gear is arranged in the support cylinder, the support cylinder is provided with a window at the position of the driving gear, and the driven gear is arranged outside the support cylinder and meshes with the driving gear at the window.

[0006] In the steering gear assembly of the utility model, two shaft seats are arranged on the support cylinder, and both ends of the rotating shaft of the driven gear are rotatably mounted on the shaft seats.

[0007] In the steering gear assembly of the utility model, a non-circular hole is arranged at the center of the end of one end of the rotating shaft of the driven gear, and the rotor of the angle sensor is inserted into the non-circular hole at the end of the rotating shaft of the driven gear.

[0008] In the steering gear assembly of the utility model, a mounting plate for mounting the angle sensor is arranged on the support cylinder.

[0009] In the steering machine assembly of the utility model, a torque sensor is installed between the upper end of the steering machine shaft and the steering wheel.

[0010] In the steering gear assembly of the utility model, a flange is fixedly installed on the upper end of the steering gear shaft; one end of the torque sensor is fixedly connected to the flange, and the other end of the torque sensor is fixedly connected to a steering wheel connector connected to the steering wheel.

[0011] In the steering gear assembly of the utility model, a hole for inserting the end of the torque sensor is arranged at the end of one end of the steering wheel connector, and a plug-in fixing pin is arranged at the portion where the steering wheel connector and the torque sensor are plugged.

[0012] In the steering gear assembly of the utility model, the other end of the steering wheel connector is provided with a thread for connecting the steering wheel.

[0013] The technical solution for achieving the purpose of the utility model is: an engineering machine having the above-mentioned steering machine assembly. The engineering machine is a wheeled machine, such as a wheel loader, a grader, a road roller, etc.

[0014] Compared with the prior art, in the utility model, an angle sensor is installed on the steering gear so as to obtain the rotation angle and speed of the steering gear when the steering gear is performing a steering operation. When a torque sensor is installed, the torque of the steering wheel during the steering operation can also be obtained so as to judge the operating habits of the driver and improve or adjust the parameters of the power steering to improve the steering performance of the engineering machinery. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the steering gear assembly of the utility model.

[0016] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0017] Figure 3 yes Figure 1 Enlarged view of point B in the middle.

[0018] Figure 4 yes Figure 2 Exploded view of the parts shown in .

[0019] Figure 5 yes Figure 3 Exploded view of the parts shown in .

[0020] Parts names and serial numbers in the figure:

[0021] Steering frame 10 , angle detection device 20 , torque detection device 30 , steering wheel 40 .

[0022] Support cylinder 11, steering shaft 12, window 13, driving gear 14, slip ring 15.

[0023] Driven gear 21 , shaft seat 22 , mounting plate 23 , angle sensor 24 , bearing 25 .

[0024] Torque sensor 31 , flange 32 , steering wheel connector 33 , fixing pin 34 . DETAILED DESCRIPTION

[0025] The specific implementation scheme is described below with reference to the accompanying drawings.

[0026] Figure 1 A steering gear assembly in this embodiment is shown, and the steering gear assembly includes a steering gear. The steering gear includes a steering gear shaft 12, a steering frame 10 for mounting the steering gear shaft, a driving gear 14 is fixedly mounted on the steering gear shaft 12, an angle sensor 24 and a driven gear 21 meshing with the driving gear 14 are mounted on the steering frame 10, and a rotor of the angle sensor 24 is connected to the rotating shaft of the driven gear 21.

[0027] In this embodiment, when the steering wheel 40 is turned to perform a steering operation, the steering wheel 40 drives the steering shaft 12 to rotate, the steering shaft 12 drives the driving gear 14 to rotate, the driving gear 14 drives the driven gear 21 to rotate, and the driven gear 21 drives the rotor of the angle sensor 24 to rotate, thereby detecting the rotation angle and rotation speed of the steering wheel 40, and providing the engineering machinery with data that can describe the steering performance.

[0028] exist Figures 1 to 5 In the steering gear assembly shown, an angle detection device 20 and a torque detection device 30 are installed on the steering gear, which are respectively used to detect the rotation angle and rotation torque of the steering wheel 40. The angle detection device 20 is mainly composed of a driving gear 14, a driven gear 21, an angle sensor 24, etc., and the torque detection device 30 is mainly composed of a flange 32, a torque sensor 31, and a steering wheel connector 33.

[0029] The steering frame 10 includes a support tube 11 sleeved with a steering shaft 12 . The upper end of the steering shaft 12 extends out from the upper end of the support tube 11 , and a slip ring 15 is installed at the end to support the steering shaft 12 to rotate in the support tube 11 .

[0030] The driving gear 14 is mounted on the steering shaft 12 and is located in the support tube 11. The support tube 11 is provided with a window 13 at the location of the driving gear 14. Two shaft seats 22 are provided outside the support tube 11, and the shaft seats 22 are fixed on the support tube 11. Both ends of the rotating shaft of the driven gear 21 are rotatably connected to the shaft seats 22 through bearings 25. The driven gear 21 is arranged at the window 13 and meshes with the driving gear 14.

[0031] A mounting plate 23 is provided on the support cylinder 11 at a position near the end of the driven gear 21, and the angle sensor 24 is fixedly mounted on the mounting plate 23. A non-circular hole is provided at the center of the end of one end of the rotating shaft of the driven gear 21, and the rotor of the angle sensor 24 is inserted into the non-circular hole at the end of the rotating shaft of the driven gear 21. When the steering wheel 40 rotates, the steering shaft 12 drives the rotor of the angle sensor 24 to rotate through the driving gear 14 and the driven gear 21, so that the angle sensor 24 can detect the rotation angle and rotation speed of the steering wheel 40.

[0032] The steering shaft 12 is connected to the steering wheel 40 via the torque detection device 30. Figure 3 Figure 5 As shown, a flange 32 is fixedly mounted on the upper end of the steering shaft 12; one end of the torque sensor 31 is fixedly connected to the flange 32, and the other end of the torque sensor 31 is fixedly connected to a steering wheel connector 33 connected to the steering wheel 40. A hole for inserting the end of the torque sensor is provided at the end of the steering wheel connector 33, and a plug-in fixing pin 34 is provided at the portion where the steering wheel connector 33 and the torque sensor 31 are plugged in to prevent the steering wheel connector 33 from being disengaged from the torque sensor 31.

[0033] The other end of the steering wheel connector 33 is provided with a thread for connecting the steering wheel, and the thread cooperates with a nut to fix the steering wheel 40 to the steering wheel connector 33 .

[0034] This embodiment also provides an engineering machine having the above-mentioned steering machine assembly. The engineering machine is a wheeled machine, such as a wheel loader, a grader, a road roller, etc.

[0035] In this embodiment, an angle sensor is installed on the steering gear so that the rotation angle and speed of the steering gear can be obtained when the steering gear is steering operated. When a torque sensor is installed, the torque of the steering wheel during the steering operation can also be obtained to judge the driver's operating habits and improve or adjust the parameters of the power steering to improve the steering performance of the construction machinery.

Claims

1. A steering gear assembly, comprising a steering gear, wherein the steering gear comprises a steering gear shaft and a steering gear frame for mounting the steering gear shaft, wherein: A driving gear is fixedly mounted on the steering machine shaft, an angle sensor and a driven gear meshing with the driving gear are mounted on the steering machine frame, and a rotor of the angle sensor is connected to a rotating shaft of the driven gear.

2. The steering gear assembly according to claim 1, characterized in that: The steering frame includes a support cylinder sleeved with the steering shaft, the driving gear is arranged in the support cylinder, the support cylinder is provided with a window at the location of the driving gear, and the driven gear is arranged outside the support cylinder and meshes with the driving gear at the window.

3. The steering gear assembly according to claim 2, characterized in that: The support cylinder is provided with two shaft seats, and the two ends of the rotating shaft of the driven gear are rotatably mounted on the shaft seats.

4. The steering gear assembly according to claim 3, characterized in that: A non-circular hole is arranged at the center of one end of the rotating shaft of the driven gear, and the rotor of the angle sensor is inserted into the non-circular hole at the end of the rotating shaft of the driven gear.

5. The steering gear assembly according to claim 2, characterized in that: The support tube is provided with a mounting plate for mounting the angle sensor.

6. The steering gear assembly according to any one of claims 1 to 5, characterized in that: A torque sensor is installed between the upper end of the steering shaft and the steering wheel.

7. The steering gear assembly according to claim 6, characterized in that: A flange is fixedly mounted on the upper end of the steering shaft; one end of the torque sensor is fixedly connected to the flange, and the other end of the torque sensor is fixedly connected to a steering wheel connector connected to the steering wheel.

8. The steering gear assembly according to claim 7, characterized in that: The end of one end of the steering wheel connector is provided with a hole for inserting the end of the torque sensor, and the portion where the steering wheel connector and the torque sensor are plugged is provided with a plug-in fixing pin.

9. The steering gear assembly according to claim 7, characterized in that: The other end of the steering wheel connector is provided with a thread for connecting the steering wheel.

10. An engineering machine, characterized in that: The invention comprises a steering gear assembly as claimed in any one of claims 1 to 9.

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