An automobile electric steering gear
A technology of electric steering gear and automobile, which is applied in the direction of electric steering mechanism, power steering mechanism, steering mechanism, etc. It can solve the problem of multiple overall weight of the mechanism, achieve the effect of reducing weight and volume and improving reliability
Active Publication Date: 2018-04-03
CHONGQING CHANGAN AUTOMOBILE CO LTD
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Although the existing steering system has high reliability, but there are many mechanisms and the overall weight is heavy, especially after the electric power assist and hydraulic power assist mechanisms are added.
Method used
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Embodiment Construction
[0025] In order to further explain the technical solution of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings.
[0026] see Figure 1 to Figure 15 As shown, the automobile electric steering gear includes a first sleeve 5, a second sleeve 4, a first screw 6 and a second screw 3, the inner walls of the first and second sleeves are all provided with internal threads, the first 1. External threads are provided on the outer wall of the second screw rod, and the left end of the first sleeve 5 and the right end of the second sleeve 4 are fixedly connected by bolts. The first screw 6 is screwed into the first sleeve 5 through the external thread and the internal thread of the first sleeve 5. The left end of the first screw 6 is provided with a spline 13, and the coil winding 16 and the spline of the first screw 6 The key is interference fit, and a wiring groove 14 is opened on the first screw rod 6 , and the ...
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The invention discloses an automobile electric steering gear which comprises a first sleeve tube, a second sleeve tube, a first screw rod and a second screw rod. The left end of the first sleeve tube is fixedly connected with the right end of the second sleeve tube; the first screw rod is in screw-thread fit with the internal thread of the first sleeve tube through the external thread to be screwed into the first sleeve tube. A coil winding is fixed at the left end of the first screw rod, permanent magnets are arranged at the left end of the inner wall of the first sleeve tube in the circumferential direction, and the right end of the first screw rod is connected with an auxiliary frame through a first hinge. The second screw rod is in screw-thread fit with the internal thread of the second sleeve tube through the external thread to be screwed into the second sleeve tube, and the left end of the second screw rod is connected with a steering claw through a second hinge. The screwing direction of the screw-thread fit of the first screw rod and the first sleeve tube is opposite to the screwing direction of the screw-thread fit of the second screw rod and the second sleeve tube. The automobile electric steering gear can greatly lower the weight of a steering system and reduce the size of the steering system.
Description
technical field [0001] The invention relates to parts of automobiles, more specifically to an electric steering gear for automobiles. Background technique [0002] For the structure of the steering system with electric power assist in existing automobiles, see Figure 16 As shown, it mainly consists of steering wheel 31, steering column 30, power steering motor 32, steering shaft 29, steering pinion shaft 28, steering rack 26, steering gear housing 25, and left steering tie rod 27, right steering tie rod 24 compositions. The position of the booster motor 32 is generally arranged on the steering column (such as Figure 16 As shown) or on the steering gear housing, since the power assist mechanism generally adopts a reversible worm gear mechanism, and the steering system retains the mechanical transmission connection from the steering wheel to the hub, the driver can still steer when the power assist fails, and the reliability is high . Although the existing steering system ...
Claims
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IPC IPC(8): B62D5/04
CPCB62D5/0445
Inventor 刘宇
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD