Horizontal steering rocker arm support assembly capable of adjusting limit

Abstract

The utility model discloses a horizontal steering rocker arm support assembly capable of adjusting and limiting, which comprises a pin shaft, a steering rocker arm support, a sealing ring, a bearing, a steering rocker arm, a bearing gasket, a gasket, a slotted nut, a cotter pin, an adjusting screw and a locking nut, a pin shaft sequentially penetrates through a pin shaft hole of a steering rocker arm support, a sealing ring, a bearing, a steering rocker arm, a bearing gasket and a gasket, a slotted nut is screwed into a fixing thread on the upper portion of the pin shaft, and a cotter pin penetrates through a groove of the slotted nut and a hole of the pin shaft to be fixed. A steering pull rod connecting pin hole is formed in the steering rocker arm, a protruding limiting rib is arranged on one side of the steering rocker arm, and the steering rocker arm can rotate around a pin shaft in a reciprocating mode. A protruding check block is arranged on one side of the steering rocker arm support, an adjusting screw and a locking nut are arranged on the check block, and the rotating angle of the steering rocker arm is limited by adjusting the adjusting screw to make contact with a limiting rib on the steering rocker arm. Stable operation of the steering gear is guaranteed, and the steering gear is prevented from being damaged to affect driving safety.

Description

Technical Field

[0001] The utility model relates to a horizontal steering rocker arm support assembly with adjustable limit, belonging to the technical field of automobile steering systems. Background Art

[0002] The application scenarios of independent suspension vehicles are relatively special. They are usually required to have a certain off-road obstacle crossing capability. Therefore, the whole vehicle often adopts a disconnected bridge structure, that is, a structure in which the wheel side is disconnected from the middle section of the bridge. Therefore, both wheels bounce independently relative to the body, and the commonly used integral steering system layout is not applicable. In terms of design, in order to adapt to the disconnected bridge, a horizontal steering layout is generally adopted. The horizontal steering rocker arm supports are used in pairs, connected to the left and right longitudinal beams respectively, and the two are connected by a transverse tie rod. The horizontal steering rocker arm supports are connected to the wheel side by a wheel side tie rod, thus forming a horizontal steering system that can still operate normally when the independent suspension bounces. In addition, there is also a problem of limit in the steering system. At present, the maximum angle of rotation is mostly limited by the hydraulic limit in the steering gear. When the output shaft of the steering gear exceeds a certain angle, the unloading valve of the steering gear will be triggered to open, and the pressure will drop suddenly, greatly reducing the hydraulic power assistance, making it difficult for manpower to push the wheel to continue to rotate, which plays a role of limit. Although hydraulic limit exists, mechanical limit is still necessary. Frequent impact on hydraulic limit on complex road conditions will cause great damage to the steering gear, which will affect the range of hydraulic limit to a certain extent, and even cause damage to the steering gear, affecting driving safety. Therefore, there are also some steering devices that can provide mechanical limit, or are configured on various rotating structures, or installed on the wheel edge, but the limit cannot be adjusted, that is, the limit can only be performed according to the designed angle, and cannot be adjusted continuously. In order to solve the above problems, the utility model proposes a horizontal steering rocker arm support assembly with adjustable limit, which can provide a mechanical limit solution and can also adjust the range of mechanical limit to a certain extent. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a solution of mechanical limit in view of the defects of the prior art, and the limit of the wheel angle can be adjusted within a certain range.

[0004] In order to solve this technical problem, the utility model provides a horizontal steering rocker arm support assembly with adjustable limit, including a pin shaft, a steering rocker arm support, a sealing ring, a bearing, a steering rocker arm, a bearing washer, a washer, a slotted nut, a cotter pin, an adjusting screw and a locking nut. A raised pin shaft hole is provided in the middle of the steering rocker arm support. The pin shaft passes through the pin shaft hole of the steering rocker arm support, the sealing ring, the bearing, the steering rocker arm, the bearing washer, the washer and the slotted nut in sequence and is screwed into the fixing thread on the upper part of the pin shaft. The cotter pin passes through the groove of the slotted nut and the hole of the pin shaft for fixing. A connecting pin hole of a steering tie rod is provided on the steering rocker arm, and a raised limit rib is provided on one side of the steering rocker arm. The steering rocker arm can reciprocate around the pin shaft through the bearing. A raised stopper is provided on one side of the steering rocker arm support, and an adjusting screw and a locking nut are provided on the stopper. The rotation angle of the steering rocker arm is limited by adjusting the adjusting screw to contact with the limit rib on the steering rocker arm.

[0005] The pin shaft and the horizontal steering rocker arm support are in interference fit to prevent the pin shaft from rotating inside.

[0006] A bearing washer is arranged between the steering rocker arm support and the steering rocker arm, and between the steering rocker arm and the washer, and a sealing ring is arranged on the outer side of the bearing to seal it.

[0007] Reinforcing ribs are respectively arranged around the pin shaft hole in the middle of the steering rocker arm support for connection.

[0008] The four corners of the steering rocker arm support are provided with four bolt holes, and the surfaces of the bolt holes are face-faced.

[0009] The steering rocker arm and the steering rocker arm support are both provided with centering lines, and the lines are aligned during assembly to ensure the designed angle.

[0010] The steering rocker arm is made by die forging, and a straight-through grease nipple is arranged on its side for easy filling of grease.

[0011] Beneficial effects: The utility model integrates the mechanical limit function into the horizontal steering rocker arm support assembly, and can adjust the maximum range of rotation of the steering rocker arm within a certain range by screwing the locking nut into the thread depth, thereby indirectly controlling the rotation range of the wheel; the mechanical limit can effectively protect the unloading valve of the steering gear, and prevent the unloading valve from being damaged by repeated hydraulic shocks, which is beneficial to ensuring the stable operation of the steering gear and preventing damage to the steering gear from affecting driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the explosion of the structure of the utility model;

[0014] Figure 3It is a structural schematic diagram of the steering rocker arm support of the utility model;

[0015] Figure 4 It is a structural schematic diagram of the steering rocker arm of the utility model.

[0016] In the figure: 1. pin shaft; 2. steering rocker arm support; 3. sealing ring; 4. bearing; 5. steering rocker arm; 6. bearing washer; 7. washer; 8. slotted nut; 9. cotter pin; 10. straight-through grease nipple; 11. adjusting screw; 12. locking nut; 13. connecting pin hole 13; 14. limiting rib; 15. block. DETAILED DESCRIPTION

[0017] The utility model is described in detail below in conjunction with the accompanying drawings and embodiments.

[0018] like Figure 1-Figure 4 As shown, the utility model provides a horizontal steering rocker arm support assembly with adjustable limit, including a pin shaft 1, a steering rocker arm support 2, a sealing ring 3, a bearing 4, a steering rocker arm 5, a bearing washer 6, a washer 7, a slotted nut 8, a cotter pin 9, an adjusting screw 11 and a locking nut 12. The steering rocker arm support 2 has a raised pin shaft hole in the middle, and the pin shaft 1 passes through the pin shaft hole of the steering rocker arm support 2, the sealing ring 3, the bearing 4, the steering rocker arm 5, the bearing washer 6, the washer 7, and the slotted nut 8 in sequence and is screwed into the fixing thread on the upper part of the pin shaft, and the cotter pin 9 passes through the groove of the slotted nut 8 and the hole of the pin shaft for fixing; the steering rocker arm A connecting pin hole 13 of the steering rod is provided on the arm 5, and a raised limiting rib 14 is provided on one side of the arm to facilitate the contact of the adjusting screw 11 therewith, thereby limiting the rotation angle of the steering rocker arm; a bearing 4 is arranged between the steering rocker arm 5 and the pin shaft 1, and the steering rocker arm 5 can reciprocate around the pin shaft 1 through the bearing 4; a raised stopper 15 is provided on one side of the steering rocker arm support 2, and an adjusting screw 11 and a locking nut 12 are arranged on the stopper 15. After assembly, the rotation angle of the steering rocker arm 5 is limited by adjusting the adjusting screw 11 to contact with the limiting rib 14 on the steering rocker arm 5. After determining the angle, tighten the locking nut 12 to prevent the adjusting screw 11 from loosening.

[0019] There is an interference fit between the pin shaft 1 and the horizontal steering rocker arm support 2 to prevent the pin shaft from rotating inside; there is a gap between the pin shaft 1 and the steering rocker arm 5 for installing the bearing 4, the sealing ring 3 and the bearing washer 6; the washer 7 is pressed on the shoulder of the pin shaft 1 to prevent the rocker arm from falling out, and the washer 7 is locked by the slotted nut 8, and the cotter pin 9 is fixed to the slotted nut 8 as a whole through the hole on the pin shaft 1.

[0020] Bearing washers 6 are provided between the steering rocker arm support 2 and the steering rocker arm 5, and between the steering rocker arm 5 and the washer 7 to prevent the steering rocker arm 5 from contacting and wearing with other parts; sealing rings 3 are provided on the outside of the bearings 4 to seal them to prevent dust and water from entering and affecting the operation of the bearings.

[0021] The pin shaft hole in the middle of the steering rocker arm support 2 is respectively connected with reinforcing ribs around it to play the role of fixing the pin shaft hole.

[0022] The four corners of the steering rocker arm support 2 are provided with four bolt holes, and the surfaces of the bolt holes are face-faced to facilitate the tightening of the bolts.

[0023] The steering rocker arm 5 and the steering rocker arm support 2 are both provided with centering lines, and the lines are aligned during assembly to ensure the designed angle.

[0024] The steering rocker arm 5 is made by die forging, and a threaded hole is provided on its side, and a straight-through grease nipple 10 is screwed into the threaded hole for easy grease filling.

[0025] After the utility model is assembled, the steering rocker arm 5 should be able to rotate freely around the pin shaft 1. According to the steering angle designed by the steering system, the screw-in depth of the adjusting screw 11 is adjusted accordingly so that the steering rocker arm 5 can be blocked by the adjusting screw 11 when rotating, so as to play a role of mechanical limit. The turning angle of the steering rocker arm 5 on the horizontal steering rocker arm support 2 is limited by the amount of screwing of the adjusting screw 11 into the thread, so that it can rotate continuously and freely, thereby indirectly controlling the maximum turning angle of the vehicle.

[0026] The utility model integrates the mechanical limit function into the horizontal steering rocker arm support assembly, and can adjust the maximum range of the steering rocker arm rotation within a certain range by adjusting the depth of the screw screwed into the thread, and indirectly control the rotation range of the wheel. The mechanical limit can effectively protect the unloading valve of the steering gear, prevent the unloading valve from being damaged by hydraulic shocks for many times, and is conducive to ensuring the stable operation of the steering gear and preventing damage to the steering gear from affecting driving safety. At the same time, the integrated design is conducive to the spatial layout of the entire vehicle.

[0027] The above embodiments of the present invention are merely illustrative and not exclusive, and all modifications within the scope of the present invention or equivalent to the scope of the present invention are encompassed by the present invention.

Claims

1. A horizontal steering rocker arm support assembly with adjustable limit, characterized in that: The invention comprises a pin shaft (1), a steering rocker arm support (2), a sealing ring (3), a bearing (4), a steering rocker arm (5), a bearing washer (6), a washer (7), a slotted nut (8), a cotter pin (9), an adjusting screw (11) and a locking nut (12). The steering rocker arm support (2) has a raised pin shaft hole in the middle. The pin shaft (1) passes through the pin shaft hole of the steering rocker arm support (2), the sealing ring (3), the bearing (4), the steering rocker arm (5), the bearing washer (6), the washer (7) and the slotted nut (8) in sequence and is screwed into the fixing thread on the upper part of the pin shaft. The cotter pin (11) is screwed into the fixing thread on the upper part of the pin shaft. 9) is fixed through the groove of the slotted nut (8) and the hole of the pin shaft; the steering rocker arm (5) is provided with a connecting pin hole (13) of the steering tie rod, and a protruding limiting rib (14) is provided on one side of the steering rocker arm (5), and the steering rocker arm (5) can reciprocate around the pin shaft (1) through the bearing (4); a protruding stopper (15) is provided on one side of the steering rocker arm support (2), and an adjusting screw (11) and a locking nut (12) are provided on the stopper (15), and the rotation angle of the steering rocker arm (5) is limited by adjusting the adjusting screw (11) to contact the limiting rib (14) on the steering rocker arm (5).

2. The adjustable limit horizontal steering rocker arm support assembly according to claim 1 is characterized in that: The pin shaft (1) and the horizontal steering rocker arm support (2) are in interference fit, thereby preventing the pin shaft from rotating inside.

3. The adjustable limit horizontal steering rocker arm support assembly according to claim 1 is characterized in that: A bearing washer (6) is provided between the steering rocker arm support (2) and the steering rocker arm (5), and between the steering rocker arm (5) and the washer (7), and a sealing ring (3) is provided on the outside of the bearing (4) to seal it.

4. The adjustable limit horizontal steering rocker arm support assembly according to claim 1 is characterized in that: The pin shaft hole in the middle of the steering rocker arm support (2) is respectively provided with reinforcing ribs for connection around it.

5. The horizontal steering rocker arm support assembly with adjustable limit according to claim 1 is characterized in that: Four bolt holes are arranged at the four corners of the steering rocker arm support (2), and the surfaces of the bolt holes are face-faced.

6. The horizontal steering rocker arm support assembly with adjustable limit according to claim 1 is characterized in that: The steering rocker arm (5) and the steering rocker arm support (2) are both provided with centering engraved lines, and the lines are aligned during assembly to ensure the designed angle.

7. The horizontal steering rocker arm support assembly with adjustable limit according to any one of claims 1 to 6, characterized in that: The steering rocker arm (5) is made by die forging, and a straight-through grease nipple (10) is provided on its side to facilitate the filling of grease.

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