Oil return structure of large flow vehicle steering device upper shell bearing
A technology of automobile steering gear and large flow, applied in the direction of fluid steering mechanism, etc., can solve the problems of shortening product life, bearing damage, shell bearing 1 damage, etc., and achieve the effect of improving product life, avoiding damage, and preventing bearing damage
Inactive Publication Date: 2010-01-20
YUBEI XINXIANG POWER STEERING SYST
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Problems solved by technology
Its disadvantage is: the housing bearing 1 is close to the inner port of the oil return hole 3 under the dynamic pressure of the oil return flow, and due to the rotation of the housing bearing 1, the edge of the inner port of the oil return hole 3 will meet the shell The body bearing1 causes damage, which eventually leads to bearing damage and greatly shortens the product life
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[0008] The present invention will be described in further detail below. see figure 2 , the oil return structure of the bearing part of the upper housing of the large flow automobile steering gear, including the upper housing 2 of the automobile steering gear, the installation hole of the upper housing bearing 1 inside the upper housing 2 of the automobile steering gear, and the upper housing 2 inside the upper housing 2 The oil return hole 3 connected with the above-mentioned bearing installation hole is characterized in that the inner port of the oil return hole 3 communicates with the outer ports of the two oil return holes 4 to form a Y-shaped tee, and each oil return hole 4 The inner port of the oil return port is connected with the above-mentioned bearing installation hole, and the central angle of the inner wall of the installation hole separated between the inner ports of the two oil return holes 4 is α, 180°≥α≥10°.
[0009] The size of the central angle α is related ...
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The invention pertains to the automobile steering device technology and relates to an improvement of an oil return structure at a bearing section at an upper cover body of a large flow rate automobile steering device. The automobile steering device comprises an upper cover body (2) and is characterized in that an inner port of an oil return hole (3) is communicated with outer ports of two minor oil return holes (4), thereby forming a three-way Y-shaped structure; the inner port of every minor oil return hole (4) is communicated with mounting holes of the bearing. The automobile steering device of the invention can prevent the cover body bearing from being damaged by the inner port of the oil return hole (3), avoids the damage of bearing and prolongs the service life of the products.
Description
technical field [0001] The invention belongs to the automobile steering gear technology, and relates to the improvement of the oil return structure of the upper shell bearing part of the large flow automobile steering gear. Background technique [0002] For the oil return structure of the bearing part of the upper casing of the existing large-flow automobile steering gear, see figure 1 , there is a mounting hole for the upper housing bearing 1 inside the upper housing 2 of the automobile steering gear, and at the same time, there is an oil return hole 3 communicating with the above-mentioned bearing installation hole inside the upper housing 2, and the inner port of the oil return hole 3 is directly connected to the The bearing mounting holes are connected. Its disadvantage is: the housing bearing 1 is close to the inner port of the oil return hole 3 under the dynamic pressure of the oil return flow, and due to the rotation of the housing bearing 1, the edge of the inner po...
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IPC IPC(8): B62D5/06
Inventor 陈剑锐张铁山张红孙献中
Owner YUBEI XINXIANG POWER STEERING SYST