CN220640001U - Electro-hydraulic steering gear sealing structure, electro-hydraulic steering gear and vehicle with electro-hydraulic steering gear sealing structure - Google Patents
Electro-hydraulic steering gear sealing structure, electro-hydraulic steering gear and vehicle with electro-hydraulic steering gear sealing structure Download PDFInfo
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- CN220640001U CN220640001U CN202322386188.5U CN202322386188U CN220640001U CN 220640001 U CN220640001 U CN 220640001U CN 202322386188 U CN202322386188 U CN 202322386188U CN 220640001 U CN220640001 U CN 220640001U
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- 238000007789 sealing Methods 0.000 title claims abstract description 146
- 230000005540 biological transmission Effects 0.000 claims abstract description 43
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 42
- 230000002093 peripheral effect Effects 0.000 claims abstract description 14
- 238000002955 isolation Methods 0.000 claims abstract description 12
- 238000005253 cladding Methods 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000003921 oil Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
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Abstract
The utility model discloses an electrohydraulic steering device sealing structure, an electrohydraulic steering device and a vehicle with the same, wherein the electrohydraulic steering device sealing structure comprises: an oil-free isolation area is formed in the electric control speed reducer shell; the high-pressure shell is arranged on one axial side of the electric control speed reducer shell, and a high-pressure oil isolation area is formed in the high-pressure shell; the input shaft penetrates through the electric control speed reducer shell; the input shaft is in transmission connection with the transmission shaft, and the transmission shaft penetrates through the high-voltage shell and extends to the electric control speed reducer shell; the first sealing ring and the second sealer are attached to each other, the inner peripheral surfaces of the first sealing ring and the second sealing ring are sealed with the transmission shaft, the outer peripheral surfaces of the first sealing ring and the second sealing ring are sealed with the inner peripheral surface of the high-pressure shell, the end face of the first sealing ring is sealed with the end face of the electric control reducer shell, and the end face of the second sealing ring is sealed with the end face of the high-pressure shell. The electro-hydraulic steering gear sealing structure provided by the embodiment of the utility model has the advantages of good sealing performance, low failure rate and the like.
Description
Technical Field
The utility model relates to the technical field of steering gear equipment, in particular to an electrohydraulic steering gear sealing structure, an electrohydraulic steering gear and a vehicle with the same.
Background
Vehicles in the related art, especially heavy truck vehicles are loaded with electro-hydraulic steering gears, the electro-hydraulic steering gears are sealed through sealing rings of the hydraulic steering gears, but the distance between a shell of an electric control speed reducer and a high-pressure shell is relatively short, when oil leakage exists or is not easy to detect, when oil leakage is found, a motor controller module of the electric control speed reducer is damaged, the electro-hydraulic steering gear assembly needs to be replaced integrally, loss is relatively large, and meanwhile maintenance difficulty is increased.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, one object of the utility model is to provide an electrohydraulic steering device sealing structure, which has the advantages of good sealing performance, low failure rate and the like.
The utility model further provides an electrohydraulic steering device with the electrohydraulic steering device sealing structure.
The utility model also provides a vehicle with the electro-hydraulic steering gear.
In order to achieve the above object, according to an embodiment of the present utility model, there is provided an electrohydraulic steering device sealing structure including: an oil-free isolation area is formed in the electric control speed reducer shell; the high-pressure shell is arranged on one axial side of the electric control speed reducer shell, and a high-pressure oil isolation area is formed in the high-pressure shell; the input shaft penetrates through the electric control speed reducer shell; the transmission shaft is in transmission connection with the input shaft, penetrates through the high-voltage shell and extends to the electric control speed reducer shell; the first sealing ring and the second sealing ring are attached to each other and are sleeved on the transmission shaft, the inner peripheral surfaces of the first sealing ring and the second sealing ring are sealed with the transmission shaft, the outer peripheral surfaces of the first sealing ring and the second sealing ring are sealed with the inner peripheral surface of the high-pressure shell, the end face of the first sealing ring is sealed with the end face of the electric control reducer shell, and the end face of the second sealing ring is attached to the end face of the high-pressure shell.
The electro-hydraulic steering gear sealing structure provided by the embodiment of the utility model has the advantages of good sealing performance, low failure rate and the like.
According to the electro-hydraulic steering gear sealing structure provided by the embodiment of the utility model, the first sealing ring and the second sealing ring are identical in shape.
According to the electro-hydraulic steering gear sealing structure provided by the embodiment of the utility model, the electric control speed reducer shell is provided with the limiting boss which surrounds the transmission shaft and protrudes towards the high-pressure shell, and the first sealing ring is sealed on the limiting boss.
According to the electrohydraulic steering device sealing structure provided by the embodiment of the utility model, the side, facing the limiting boss, of the first sealing ring and the second sealing ring is respectively provided with the limiting groove, and the inner peripheral surface of the limiting groove of the first sealing ring is matched with the limiting boss for sealing.
According to the electro-hydraulic steering gear sealing structure provided by the embodiment of the utility model, the orientation of the limiting groove of the first sealing ring is the same as that of the limiting groove of the second sealing ring.
According to the electro-hydraulic steering gear sealing structure, the first sealing ring and the second sealing ring are both configured as spring sealing rings.
According to the electro-hydraulic steering gear sealing structure provided by the embodiment of the utility model, the first sealing ring and the second sealing ring both comprise: the coating part surrounds the transmission shaft, the limit groove is formed in the coating part, and the coating part is respectively sealed with the high-voltage shell, the electric control speed reducer shell and the transmission shaft; and the spring part is arranged in the limit groove to provide elasticity for the cladding part.
According to the electro-hydraulic steering gear sealing structure, the electric control speed reducer shell comprises: the high-pressure shell is arranged on the sealing shell, and the first sealing ring and the second sealing ring are sealed between the high-pressure shell and the sealing shell; and the end cover is arranged at one end, far away from the high-pressure shell, of the sealing shell, and the transmission shaft is respectively supported by the sealing shell and the end cover.
An embodiment according to a second aspect of the present utility model proposes an electro-hydraulic steering gear comprising an electro-hydraulic steering gear seal according to the above-described embodiment of the present utility model.
According to the electrohydraulic steering device disclosed by the embodiment of the utility model, the electrohydraulic steering device sealing structure disclosed by the embodiment of the utility model has the advantages of good sealing performance, low failure rate and the like.
An embodiment according to a third aspect of the utility model proposes a vehicle comprising an electro-hydraulic steering gear according to the above-described embodiment of the utility model.
According to the vehicle disclosed by the embodiment of the utility model, the electrohydraulic steering device has the advantages of good sealing performance, low failure rate and the like.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic structural view of an electro-hydraulic diverter seal according to an embodiment of the present utility model.
Reference numerals:
an electrohydraulic steering device sealing structure 1, an electric control speed reducer housing 100, a high-pressure housing 200, an input shaft 300,
A transmission shaft 400, a first sealing ring 500, a second sealing ring 600, a sealing shell 110, an end cover 120,
The oil-free isolation area 130, the isolation high-pressure oil area 210, the limit boss 10 and the limit groove 11.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
In the description of the utility model, a "first feature" or "second feature" may include one or more of such features.
In the description of the utility model, "a plurality" means two or more, and "a number" means one or more.
An electro-hydraulic steering gear seal structure 1 according to an embodiment of the present utility model is described below with reference to the accompanying drawings.
As shown in fig. 1, the heat release electro-hydraulic steering gear sealing structure according to the embodiment of the present utility model includes an electric control speed reducer housing 100, a high pressure housing 200, an input shaft 300, a transmission shaft 400, a first seal ring 500, and a second seal ring 600.
An oil-free isolation zone 130 is formed within the electrically controlled retarder housing 100. The high-pressure housing 200 is installed at one axial side of the electric control speed reducer housing 100, and a high-pressure oil isolation region 210 is formed in the high-pressure housing 200. The input shaft 300 is disposed through the electrically controlled reducer housing 100. The input shaft 300 is in driving connection with the transmission shaft 400, and the transmission shaft 400 penetrates through the high-voltage housing 200 and extends to the electric control reducer housing 100. The first seal ring 500 and the second seal ring 500 are attached to each other and are all sleeved on the transmission shaft 400, the inner peripheral surfaces of the first seal ring 500 and the second seal ring 600 are sealed with the transmission shaft 400, the outer peripheral surfaces of the first seal ring 500 and the second seal ring 600 are sealed with the inner peripheral surface of the high-pressure casing 200, the end surface of the first seal ring 500 is sealed with the end surface of the electric control reducer casing 100, and the end surface of the second seal ring 600 is sealed with the end surface of the high-pressure casing 200.
For example, the input shaft 300 is installed through the electric control reducer housing 100 and is in driving connection with the transmission shaft 400, the input shaft is connected with the steering wheel for steering, the input shaft 300 and the transmission shaft 400 are connected through the spline of the elastic torsion bar, and the transmission shaft 400 is installed through the high-voltage housing 200 and extends to the electric control reducer housing 100. The electric control speed reducer housing 100 is internally provided with a power-assisted motor and a controller module, and the electric control speed reducer housing 100 is internally provided with a speed reducing mechanism, and the transmission mechanism is respectively in transmission connection with the power-assisted motor and the transmission shaft 400, so as to provide motor power assistance for the electro-hydraulic steering gear 1. The isolated high-pressure oil area 210 is filled with hydraulic oil, and provides additional steering driving force for the transmission 400 through oil, thereby providing hydraulic assistance for the electro-hydraulic steering gear 1.
According to the electro-hydraulic steering gear sealing structure 1 provided by the embodiment of the utility model, the electric control speed reducer shell 100 and the high-pressure shell 200 are adopted to jointly form a shell structure of the electro-hydraulic steering gear sealing structure 1. The input shaft 300 is drivingly connected to the drive shaft 400 such that the input shaft 300 is driven through the drive shaft 400 to the steering system of the vehicle. The first seal ring 500 and the second seal ring 600 together form an integral seal structure. Further, end surfaces of the first seal ring 500 and the second seal ring 600 opposite to each other are sealed with the electric control speed reducer housing 100 and the high-pressure housing 200, respectively, so as to form axial seals for the electric control speed reducer housing 100 and the high-pressure housing 500.
And both radially inner and outer sides of the first seal ring 500 and the second seal ring 600 are sealed with the transmission shaft 400 and the high pressure housing 200, respectively, thereby forming radial seals with respect to the transmission shaft 400 and the high pressure housing 200. Thereby, the sealed space of the electro-hydraulic steering gear can be better sealed between the transmission shaft 400 and the high-pressure housing 200, and between the high-pressure housing 200 and the electric control speed reducer housing 100. The dual sealing ring design of the first sealing ring 500 and the second sealing ring 600 can provide an additional protective layer, effectively prevent the occurrence of oil seepage and oil leakage, improve the sealing performance of the device and ensure the normal operation of the functions of the electro-hydraulic steering gear. The sealing performance is improved, so that the damage to the motor controller component is not easy to cause, the failure rate of the device is reduced, and the maintenance cost is reduced.
Therefore, the electrohydraulic steering device sealing structure 1 has the advantages of good sealing performance, low failure rate and the like.
In some embodiments of the present utility model, as shown in fig. 1, the first seal ring 500 and the second seal ring 600 are identical in shape. The adoption of the structure of the two first sealing rings 500 and the second sealing rings 600 with the same shape can provide better sealing effect, and the first sealing rings 500 and the second sealing rings 600 can better adapt to the change of the contact surface due to the same shape, so that oil leakage and oil leakage are prevented, and the normal operation of the electro-hydraulic steering gear 1 is ensured. The first sealing ring 500 and the second sealing ring 600 have the same shape, have better compression resistance effect, and can fully fill and seal the electric control reducer shell 100 and the high-pressure shell 500 in the axial direction; when receiving high pressure, first sealing ring 500 and second sealing ring 600 can bear the pressure jointly, keep sealing performance better, prevent liquid leakage, improve the reliability of device.
In some embodiments of the present utility model, as shown in fig. 1, the electric control speed reducer housing 100 is configured with a limiting boss 10 surrounding the transmission shaft 400 and protruding toward the high pressure housing 200, and the first seal ring 500 is sealed to the limiting boss 10. Through the structure of spacing boss 10, help the sealed effect of first sealing washer 500, spacing boss 10 encircles in transmission shaft 400 and first sealing washer 500 seals in spacing boss 10, can provide better support to first sealing washer 500 to the seal of first sealing washer 500 and second sealing washer 600 is inseparabler, keeps stable fluid seal in the course of the work.
In some embodiments of the present utility model, as shown in fig. 1, the sides of the first seal ring 500 and the second seal ring 600 facing the limiting boss 10 are each configured with a limiting groove 11, and the inner circumferential surface of the limiting groove 11 of the first seal ring 500 is sealed with the limiting boss 10. Therefore, the radial position of the first sealing ring 500 can be well limited and fixed, the accuracy of the radial position of the first sealing ring 500 is ensured, the positions of the first sealing ring 500 and the second sealing ring 600 are limited and fixed through the limiting groove 11, the first sealing ring 500 and the second sealing ring 500 are facilitated to be sealed at the correct positions, and the sealing performance is improved. Through the sealing fit of the limit groove 11 and the limit boss 10, the contact area and the sealing contact pressure are increased, the sealing effect and the reliability of the device are improved, and the service life of the sealing structure of the electro-hydraulic steering gear is prolonged.
In some embodiments of the present utility model, as shown in fig. 1, the orientation of the limit groove 11 of the first seal ring 500 is the same as the orientation of the limit groove 11 of the second seal ring 600. The orientation of the limit grooves 11 of the first sealing ring 500 and the second sealing ring 600 is the same, so that the design and the manufacture of the whole structure are more unified and simplified, the stress of the first sealing ring 500 and the second sealing ring 600 is more uniform, the production cost is reduced, the production efficiency is improved, and the maintenance difficulty is reduced. And the same design of the limit grooves 11 of the first sealing ring 500 and the second sealing ring 600 makes the same design have the substitution that one of the first sealing ring 500 and the second sealing ring 600 is damaged or needs to be replaced, and the sealing rings with the same specification can be used for replacement.
In some embodiments of the present utility model, as shown in fig. 1, both the first seal ring 500 and the second seal ring 600 are configured as spring seal rings. The spring seal ring can provide better sealing performance, can always apply elasticity to the electric control speed reducer shell 100, the high-voltage shell 200 and the transmission shaft 400, and has better sealing effect. When the electrohydraulic steering device works, the spring sealing ring bears pressure, and the inside of the electrohydraulic steering device is effectively isolated from the external environment by the elastic force of the spring sealing ring, so that the tightness of the electrohydraulic steering device is ensured. And the spring sealing ring has good elasticity and wear resistance, the first sealing ring 500 and the second sealing ring 600 can keep sealing effect for a long time in the using process, and have higher reliability, and the electro-hydraulic steering gear sealing structure 1 can stably operate and have sealing performance for a longer time.
In some embodiments of the present utility model, as shown in fig. 1, the first seal ring 500 and the second seal ring 600 each include a cladding portion and a spring portion. The cladding portion surrounds the transmission shaft 400, and the limit groove 11 is formed in the cladding portion, and the cladding portion is sealed with the high-voltage housing 200, the electric control reducer housing 100 and the transmission shaft 400 respectively. The spring part is installed in the limit groove 11 to provide elasticity to the cladding part.
The cladding portion surrounds the transmission shaft 400 and seals with the high-pressure housing 200, the electric control reducer housing 100 and the transmission shaft 400 respectively, and the cladding portion can effectively isolate oil from the inside of the isolation high-pressure oil region 210, prevent oil from leaking into the electric control reducer housing 100, prevent external pollutants from entering, and ensure the sealing performance of the electro-hydraulic steering gear 1. The spring part can always keep elastic force and can be suitable for pressure change under different working conditions, the spring part provides elasticity and certain pressure for the cladding part, tight fitting between the sealing ring and the transmission shaft 400 is ensured, and sealing performance is further enhanced.
In some embodiments of the present utility model, as shown in FIG. 1, an electrically controlled retarder housing 100 includes a seal housing 110 and an end cap 120. The high pressure housing 200 is mounted to the seal housing 110, and the first seal ring 500 and the second seal ring 600 are sealed between the high pressure housing 200 and the seal housing 110. The end cap 120 is mounted to an end of the seal housing 110 remote from the high pressure housing 200, and the drive shaft 400 is supported to the seal housing 110 and the end cap 120, respectively.
The seal housing 110 can accommodate the power-assisted motor, the controller module, the speed reducing mechanism and other components, and is spliced together with the high-pressure housing 200 to form an integral housing structure, and the seal housing 110 is attached to the high-pressure housing 200 and sealed by the first seal ring 500 and the second seal ring 600, so that the liquid is ensured not to leak into the oil-free isolation area 130. The end cap 120 may support and fix the driving shaft 400, ensure stable position of the driving shaft 400, enable it to operate normally, and enhance sealing performance in combination with the sealing case 110. The first seal ring 500 and the second seal ring 600 are connected between the high-pressure housing 200 and the seal housing 110, effectively isolating liquid leakage, and ensuring normal operation of the electro-hydraulic steering gear.
The electro-hydraulic steering gear according to the embodiment of the present utility model includes the electro-hydraulic steering gear sealing structure 1 according to the above-described embodiment of the present utility model.
The electro-hydraulic steering gear disclosed by the embodiment of the utility model has the advantages of good sealing performance, low failure rate and the like by utilizing the sealing structure 1 of the heat-release electro-hydraulic steering gear disclosed by the embodiment of the utility model.
The vehicle according to the embodiment of the utility model comprises the electro-hydraulic steering gear according to the embodiment of the utility model.
According to the vehicle disclosed by the embodiment of the utility model, the heat-release electrohydraulic steering device disclosed by the embodiment of the utility model has the advantages of good sealing performance, low failure rate and the like.
Other constructions and operations of the electro-hydraulic steering gear seal 1 according to embodiments of the present utility model are known to those of ordinary skill in the art and will not be described in detail herein.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. An electrohydraulic diverter seal structure comprising:
an oil-free isolation area is formed in the electric control speed reducer shell;
the high-pressure shell is arranged on one axial side of the electric control speed reducer shell, and a high-pressure oil isolation area is formed in the high-pressure shell;
the input shaft penetrates through the electric control speed reducer shell;
the transmission shaft is in transmission connection with the input shaft, penetrates through the high-voltage shell and extends to the electric control speed reducer shell;
the first sealing ring and the second sealing ring are attached to each other and are sleeved on the transmission shaft, the inner peripheral surfaces of the first sealing ring and the second sealing ring are sealed with the transmission shaft, the outer peripheral surfaces of the first sealing ring and the second sealing ring are sealed with the inner peripheral surface of the high-pressure shell, the end face of the first sealing ring is sealed with the end face of the electric control reducer shell, and the end face of the second sealing ring is sealed with the end face of the high-pressure shell.
2. The electrohydraulic diverter seal structure of claim 1, wherein said first seal ring and said second seal ring are identical in shape.
3. The electrohydraulic steering device sealing structure of claim 1, wherein said electric control retarder housing is configured with a limit boss surrounding said drive shaft and protruding in a direction of said high pressure housing, said first seal ring being sealed to said limit boss.
4. The electrohydraulic steering device sealing structure of claim 3, wherein a side of said first seal ring and said second seal ring facing said limit boss are each configured with a limit groove, and an inner peripheral surface of said limit groove of said first seal ring is sealed with said limit boss.
5. The electrohydraulic steering device sealing structure of claim 4, wherein said limiting groove of said first seal ring and said limiting groove of said second seal ring are oriented in the same direction.
6. The electro-hydraulic diverter seal structure according to claim 4, wherein the first seal ring and the second seal ring are each configured as a spring seal ring.
7. The electro-hydraulic diverter seal structure according to claim 6, wherein the first seal ring and the second seal ring each comprise:
the coating part surrounds the transmission shaft, the limit groove is formed in the coating part, and the coating part is respectively sealed with the high-voltage shell, the electric control speed reducer shell and the transmission shaft;
and the spring part is arranged in the limit groove to provide elasticity for the cladding part.
8. The electro-hydraulic steering gear seal according to claim 1, wherein the electric control speed reducer housing includes:
the high-pressure shell is arranged on the sealing shell, and the first sealing ring and the second sealing ring are sealed between the high-pressure shell and the sealing shell;
and the end cover is arranged at one end, far away from the high-pressure shell, of the sealing shell, and the transmission shaft is respectively supported by the sealing shell and the end cover.
9. An electro-hydraulic steering gear, comprising: the electrohydraulic diverter seal structure according to any one of claims 1-8.
10. A vehicle, characterized by comprising: the electrohydraulic steering device of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322386188.5U CN220640001U (en) | 2023-09-04 | 2023-09-04 | Electro-hydraulic steering gear sealing structure, electro-hydraulic steering gear and vehicle with electro-hydraulic steering gear sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322386188.5U CN220640001U (en) | 2023-09-04 | 2023-09-04 | Electro-hydraulic steering gear sealing structure, electro-hydraulic steering gear and vehicle with electro-hydraulic steering gear sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220640001U true CN220640001U (en) | 2024-03-22 |
Family
ID=90267724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322386188.5U Active CN220640001U (en) | 2023-09-04 | 2023-09-04 | Electro-hydraulic steering gear sealing structure, electro-hydraulic steering gear and vehicle with electro-hydraulic steering gear sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220640001U (en) |
-
2023
- 2023-09-04 CN CN202322386188.5U patent/CN220640001U/en active Active
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