CN216269499U - Automobile steering device with novel sealing structure - Google Patents
Automobile steering device with novel sealing structure Download PDFInfo
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- CN216269499U CN216269499U CN202122562489.XU CN202122562489U CN216269499U CN 216269499 U CN216269499 U CN 216269499U CN 202122562489 U CN202122562489 U CN 202122562489U CN 216269499 U CN216269499 U CN 216269499U
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Abstract
The utility model relates to an automobile steering gear with a novel sealing structure, which comprises a shell, a steering nut, an arm shaft and a side cover, wherein the inner cavity of the shell comprises an upper cavity and a lower cavity, the steering nut is arranged in the upper cavity, the arm shaft is arranged in the lower cavity, a gear sector is arranged on the arm shaft and is embedded with a tooth-shaped groove part arranged on the steering nut, the side cover is arranged on one side of the lower cavity, an adjusting bolt is arranged at the rear end of the arm shaft, the head end of the adjusting bolt penetrates through the side cover, the automobile steering gear further comprises a sleeve nut and a sealing gasket, the sealing gasket is arranged outside the side cover and sleeved on the adjusting bolt, a groove is arranged in the middle of the sleeve nut and is sleeved on the head end of the adjusting bolt through a thread, the sealing gasket is tightly pressed by the sleeve nut, and a nut inner cavity is formed between the groove bottom of the sleeve nut and the end surface of the head end of the adjusting bolt. The utility model improves the sealing performance, and high-pressure engine oil can only permeate into the inner cavity of the nut of the sleeve nut along the thread of the adjusting bolt during working, thereby avoiding oil leakage fault.
Description
Technical Field
The utility model relates to an automobile steering gear with a novel sealing structure.
Background
When the automobile steering device works, the power steering pump pumps high-pressure engine oil into the hydraulic steering device assembly, the high-pressure engine oil is filled in the inner cavity of the steering device, as shown in figure 1, the rear end of the arm shaft of the steering device is provided with an adjusting bolt connected with the side cover, the adjusting bolt is fixed on the adjusting bolt only through a conventional nut in the prior art, as disclosed in the Chinese utility model patent with the authorization publication number of CN200948815Y, the rear end of the steering rocker arm shaft of the automobile power steering device is provided with a rocker arm shaft adjusting bolt, the rocker arm shaft adjusting bolt is directly fastened through a rocker arm shaft locking nut, and the structure only depends on each sealing element in the side cover to realize sealing. However, in practice it has been found that high pressure oil runs the risk of leaking down the adjusting bolt thread, and therefore further improvements in the sealing arrangement are desirable. The utility model discloses a have in the chinese utility model patent of grant publication number CN201502613U sealed and loosen the hex nut of function, its screw through-hole one end at the steel part nut is equipped with a horn shape hole, and this end surface is equipped with the flange simultaneously, and the screw through-hole other end is equipped with the recess, the downthehole nitrile rubber plastic seal spare that is equipped with of horn shape, nylon plastic seal spare is equipped with in the recess, although this structure can improve the sealing performance of adjusting bolt tip, the steel part nut needs special processing to increased sealing washer quantity, this has improved product manufacturing cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an automobile steering gear with a novel sealing structure, which improves the sealing performance, and simultaneously, high-pressure engine oil can only permeate into the inner cavity of a nut of a sleeve nut along the threads of an adjusting bolt, so that oil leakage faults can not be generated.
The purpose of the utility model is realized by the following technical scheme:
the utility model provides an auto steering ware with novel seal structure, includes casing, steering nut, arm axle and side cap, and the casing inner chamber includes epicoele and cavity of resorption, and steering nut locates in the epicoele, and the arm axle is located in the cavity of resorption, and the epaxial gear sector that is equipped with of arm is equipped with the profile of tooth slot part gomphosis on steering nut with locating, cavity of resorption one side is equipped with the side cap, arm axle rear end is equipped with adjusting bolt, just the adjusting bolt head end is passed the side cap still includes box nut and sealed the pad, sealed pad locate the side cap outer and suit in adjusting bolt is last, the box nut middle part be equipped with the recess pass through the screw thread adapter sleeve in the adjusting bolt head end, and sealed the pad passes through box nut compresses tightly, box nut recess tank bottom with form the nut inner chamber between the adjusting bolt head end terminal surface.
The side cover is provided with a side cover, the side cover is provided with a shell, the shell is far away from the side cover, and two ends of the arm shaft are respectively supported by bearings corresponding to the side cover.
The end part of the arm shaft close to one side of the side cover is internally provided with a mounting hole, and the tail end of the adjusting bolt is inserted into the mounting hole.
The tail end of the adjusting bolt is provided with a nut, a pressing sleeve is arranged in the mounting hole and sleeved on the adjusting bolt, and the outer wall of the pressing sleeve is in threaded connection with the inner wall of the mounting hole and tightly presses the nut.
A first sealing element is arranged on one side, away from the side cover, of the shell, and a second sealing element is arranged between the side cover and the shell.
The utility model has the advantages and positive effects that:
the steering gear utilizes the sleeve nut fixing sealing gasket to improve the sealing performance of the steering gear, and the nut inner cavity is formed between the groove bottom of the sleeve nut and the end surface of the adjusting bolt, so that high-pressure engine oil can only permeate into the nut inner cavity of the sleeve nut along the thread of the adjusting bolt when the steering gear works, and oil leakage faults can not be generated.
Drawings
Figure 1 is a schematic structural view of the present invention,
wherein 101 is a shell, 102 is a steering nut, 103 is an arm shaft, 1031 is a gear sector, 104 is a bearing, 105 is a side oil cavity, 106 is a side cover, 107 is a nut inner cavity, 108 is an adjusting bolt, 109 is a sleeve nut, 110 is a sealing gasket, 111 is a lower cavity, 112 is a first sealing element, 113 is a pressing sleeve, and 114 is a second sealing element.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the present invention includes a housing 101, a steering nut 102, an arm shaft 103, a side cover 106, an adjusting bolt 108, a sleeve nut 109 and a packing 110, wherein the inner cavity of the shell 101 comprises an upper cavity and a lower cavity 111, the steering nut 102 is arranged in the upper cavity, the arm shaft 103 is arranged in the lower cavity 111, the arm shaft 103 is provided with a toothed sector 1031 to be fitted into a toothed groove portion provided in the steering nut 102, a side cover 106 is arranged on one side of a lower cavity 111 of the shell 101, an adjusting bolt 108 is arranged at the rear end of the arm shaft 103, the head end of the adjusting bolt 108 penetrates through the side cover 106, the sealing gasket 110 is arranged outside the side cover 106 and sleeved on the adjusting bolt 108, the middle part of the sleeve nut 109 is provided with a groove which is sleeved on the head end of the adjusting bolt 108 through a threaded connection, and the sealing gasket 110 is pressed by the sleeve nut 109, and a nut inner cavity 107 is formed between the groove bottom of the sleeve nut 109 and the end face of the head end of the adjusting bolt 108.
As shown in fig. 1, bearings 104 are disposed on the side cover 106 and on a side of the housing 101 away from the side cover 106, and two ends of the arm shaft 103 are supported by the bearings 104 on the corresponding sides to rotate. In this embodiment, the bearing 104 is a cylindrical bearing.
As shown in fig. 1, a mounting hole is formed in an end portion of the arm shaft 103 close to one side of the side cover 106, a tail end of the adjusting bolt 108 is inserted into the mounting hole, a nut is arranged at the tail end of the adjusting bolt 108, a pressing sleeve 113 is arranged in the mounting hole and sleeved on the adjusting bolt 108, an outer wall of the pressing sleeve 113 is in threaded connection with an inner wall of the mounting hole, the pressing sleeve 113 tightly presses the nut to fix the adjusting bolt 108, and the adjusting bolt 108 is in threaded connection with the side cover 106 and a groove of the sleeve nut 109.
As shown in fig. 1, a first sealing element 112 is disposed on a side of the housing 101 away from the side cover 106, the first sealing element 112 is disposed outside the bearing 104 on the same side, the side cover 106 is embedded in the housing 101, and a second sealing element 114 is disposed between the side cover 106 and the housing 101. The first sealing element 112 and the second sealing element 114 can be selected from a sealing ring and the like according to requirements.
The working principle of the utility model is as follows:
the power steering pump is installed on an automobile engine and pumps high-pressure hydraulic oil to provide power for a steering gear, specifically, the high-pressure oil output by the power steering pump enters a lower cavity 111 through an oil inlet hole (not marked in the figure) of a shell 101, and the high-pressure oil enters a side oil cavity 105 between a side cover 106 and an end surface of the arm shaft 103 through a gap of a bearing 104 between the arm shaft 103 and the side cover 106, so that the side oil cavity 105 is filled with the high-pressure oil, generally, the sealing gasket 110 can ensure the sealing in the steering gear cavity, when the automobile runs fast or performs in-situ steering, the thread of an adjusting bolt 108 cannot be completely sealed by the rubber sealing gasket 110, if the conventional nut is adopted for fixing, the oil leakage fault is easily caused, but the sealing gasket 110 is fixed by adopting a sleeve nut 109, and a nut cavity 107 is formed between the groove bottom of the sleeve nut 109 and the end surface of the adjusting bolt 108, and the high-pressure oil can only permeate into the nut cavity 107 along the thread of the adjusting bolt 108, oil leakage failure is not generated.
Claims (5)
1. The utility model provides an auto steering ware with novel seal structure, includes casing, steering nut, arm axle and side cap, and the casing inner chamber includes epicoele and cavity of resorption, and steering nut locates in the epicoele, and the arm axle is located in the cavity of resorption, and the epaxial gear sector that is equipped with of arm is equipped with the profile of tooth slot part gomphosis on locating steering nut, cavity of resorption one side is equipped with the side cap, arm axle rear end is equipped with adjusting bolt, just the adjusting bolt head end is passed the side cap, its characterized in that: including sleeve nut (109) and sealed pad (110), sealed pad (110) locate outside side cap (106) and suit in on adjusting bolt (108), sleeve nut (109) middle part is equipped with the recess through threaded connection suit in adjusting bolt (108) head end, and sealed pad (110) pass through sleeve nut (109) compress tightly, sleeve nut (109) groove bottom with form nut inner chamber (107) between adjusting bolt (108) head end face.
2. The automobile steering gear with the novel sealing structure according to claim 1, wherein: bearings (104) are arranged on the side cover (106) and on one side, far away from the side cover (106), of the shell (101), and two ends of the arm shaft (103) are respectively supported through the bearings (104) on the corresponding sides.
3. The automobile steering gear with the novel sealing structure according to claim 1, wherein: the end part of the arm shaft (103) close to one side of the side cover (106) is internally provided with a mounting hole, and the tail end of the adjusting bolt (108) is inserted into the mounting hole.
4. The automobile steering gear with the novel sealing structure according to claim 3, wherein: the tail end of the adjusting bolt (108) is provided with a nut, a pressing sleeve (113) is arranged in the mounting hole and sleeved on the adjusting bolt (108), and the outer wall of the pressing sleeve (113) is in threaded connection with the inner wall of the mounting hole and tightly presses the nut.
5. The automobile steering gear with the novel sealing structure according to claim 1, wherein: a first sealing element (112) is arranged on one side, away from the side cover (106), of the shell (101), and a second sealing element (114) is arranged between the side cover (106) and the shell (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122562489.XU CN216269499U (en) | 2021-10-25 | 2021-10-25 | Automobile steering device with novel sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122562489.XU CN216269499U (en) | 2021-10-25 | 2021-10-25 | Automobile steering device with novel sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216269499U true CN216269499U (en) | 2022-04-12 |
Family
ID=81071765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122562489.XU Active CN216269499U (en) | 2021-10-25 | 2021-10-25 | Automobile steering device with novel sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216269499U (en) |
-
2021
- 2021-10-25 CN CN202122562489.XU patent/CN216269499U/en active Active
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