CN215474305U - Oil injection type pin shaft and shaft sleeve structure of air suspension guide mechanism of commercial vehicle - Google Patents
Oil injection type pin shaft and shaft sleeve structure of air suspension guide mechanism of commercial vehicle Download PDFInfo
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- CN215474305U CN215474305U CN202122075424.2U CN202122075424U CN215474305U CN 215474305 U CN215474305 U CN 215474305U CN 202122075424 U CN202122075424 U CN 202122075424U CN 215474305 U CN215474305 U CN 215474305U
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- shaft sleeve
- guide groove
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Abstract
The utility model discloses an oiling type pin shaft and shaft sleeve structure of a commercial vehicle air suspension guide mechanism, which comprises a pin shaft and a shaft sleeve sleeved outside the pin shaft, wherein an oiling cavity is arranged inside the pin shaft and penetrates through the outer end of the pin shaft, and an internal thread is arranged on the inner wall of the oiling cavity close to the outer end of the pin shaft and used for installing a pressure oiling cup; the outer wall of the pin shaft matched with the shaft sleeve is provided with an external oil guide groove, the oil guide groove extends along the axial direction of the pin shaft, and the outer wall of the pin shaft is provided with an oil outlet hole in a penetrating mode and used for communicating the oil injection cavity with the external oil guide groove. Has the advantages that: the lubricating oil guide-in outer oil guide groove for the lubricating oil in the oil injection cavity is formed through the oil outlet hole, lubrication on the matching surface of the pin shaft and the shaft sleeve is achieved, and the effects of reducing abrasion of the pin shaft and the shaft sleeve, damping and buffering and reducing noise can be achieved.
Description
Technical Field
The utility model relates to the technical field of commercial vehicle air suspensions, in particular to an oil injection type pin shaft and shaft sleeve structure of a commercial vehicle air suspension guide mechanism.
Background
Commercial car air suspension leading arm on the existing market is mostly the round pin axle with the leading arm support connected mode and cooperates with the axle sleeve, and the axle sleeve inner circle is the steel bushing, middle one deck rubber, the outer lane is the steel bushing, installs together through outer lane and leading arm interference fit, and the direct surface rigidity contact each other of round pin axle and axle sleeve inner circle can appear in the course of the work that the round pin axle wearing and tearing are serious even fracture, noise at work is too big, the rigidity does not have buffering shock attenuation effect scheduling problem greatly.
Therefore, a pin and bushing structure capable of being lubricated by oil is needed.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving the above problems, and provides an oiling pin and bushing structure for a guiding mechanism of an air suspension of a commercial vehicle, which is described in detail below to overcome the disadvantages of the prior art.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides an oiling type pin shaft and shaft sleeve structure of a commercial vehicle air suspension guide mechanism, which comprises a pin shaft and a shaft sleeve sleeved outside the pin shaft, wherein an oiling cavity is arranged inside the pin shaft and penetrates through the outer end of the pin shaft, and an internal thread is arranged on the inner wall of the oiling cavity close to the outer end of the pin shaft and used for installing a pressure oiling cup; the outer wall of the pin shaft matched with the shaft sleeve is provided with an external oil guide groove, the oil guide groove extends along the axial direction of the pin shaft, and the outer wall of the pin shaft is provided with an oil outlet hole in a penetrating mode and used for communicating the oil injection cavity with the external oil guide groove.
By adopting the oiling type pin shaft and shaft sleeve structure of the commercial vehicle air suspension guide mechanism, during use, the pressure oiling cup is installed at the end part of the oiling cavity, lubricating oil is injected into the oiling cavity through the pressure oiling cup, and enters the external oil guide groove through the oil outlet, so that the lubricating oil reaches the shaft sleeve and the matching surface of the pin shaft, the lubricating effect is achieved, the abrasion of the pin shaft and the shaft sleeve can be reduced, and the effects of shock absorption and noise reduction are achieved.
Preferably, the external oil guide groove extends in a spiral manner along the axial direction of the pin shaft.
Preferably, the oil outlet hole is located in the middle of the external oil guide groove.
Preferably, the axle sleeve inner wall is provided with inside oil groove of leading, inside oil groove of leading follows with the spiral mode the axial direction of axle sleeve extends, just inside oil groove of leading with the spiral direction of outside oil groove of leading is opposite.
Preferably, an oil leakage hole penetrates through the outer side of the shaft sleeve, the oil leakage hole is located in the middle of the shaft sleeve, an outer annular groove is formed in the middle of the outer side of the shaft sleeve, and the outer annular groove is communicated with the inner oil guide groove through the oil leakage hole.
Preferably, the outer end of the pin shaft is provided with a positioning cavity, and the positioning cavity is coaxially communicated with the oil injection cavity and is used for positioning the pressure oil injection cup.
Preferably, the outer wall of the end part of the pin shaft, which is provided with the positioning cavity, is symmetrically provided with plane parts.
Has the advantages that: the lubricating oil guide-in outer oil guide groove for the lubricating oil in the oil injection cavity is formed through the oil outlet hole, lubrication on the matching surface of the pin shaft and the shaft sleeve is achieved, and the effects of reducing abrasion of the pin shaft and the shaft sleeve, damping and buffering and reducing noise can be achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the pin;
FIG. 3 is a left side view of the pin;
FIG. 4 is a top cross-sectional view of the pin;
FIG. 5 is a front cross-sectional view of the bushing;
fig. 6 is a schematic diagram of an application structure of the present invention.
The reference numerals are explained below:
1. a pin shaft; 101. an oil outlet hole; 102. an external oil guide groove; 103. a planar portion; 104. an oil injection cavity; 105. a positioning cavity; 2. a shaft sleeve; 201. an oil leak hole; 202. an internal oil guide groove; 203. an outer ring groove; 3. an axle; 4. a guide mechanism; 5. a guide arm support; 6. a vehicle frame.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Referring to fig. 1-6, the utility model provides an oiling pin shaft and shaft sleeve structure of a commercial vehicle air suspension guide mechanism, which comprises a pin shaft 1 and a shaft sleeve 2 sleeved outside the pin shaft 1, wherein an oiling cavity 104 is arranged inside the pin shaft 1, the oiling cavity 104 penetrates through the outer end of the pin shaft 1, and an internal thread is arranged on the inner wall of the oiling cavity 104 close to the outer end of the pin shaft 1 and used for installing a pressure-injection oil cup; the outer wall of the pin shaft 1 matched with the shaft sleeve 2 is provided with an external oil guide groove 102, the oil guide groove extends along the axial direction of the pin shaft 1, and the outer wall of the pin shaft 1 is provided with an oil outlet hole 101 in a penetrating mode and used for communicating an oil injection cavity 104 with the external oil guide groove 102.
As an alternative embodiment, the external oil guiding groove 102 extends in a spiral manner along the axial direction of the pin 1, and is configured to enable the lubricating oil to be uniformly distributed on the matching surface of the pin 1 and the shaft sleeve 2.
The oil outlet hole 101 is located in the middle of the external oil guide groove 102, so that the lubricating oil in the oil injection cavity 104 can quickly and sufficiently enter the external oil guide groove 102.
2 inner walls of axle sleeve are provided with inside oil groove 202 of leading, and inside oil groove 202 of leading extends along axle sleeve 2's axial direction with the mode of spiral, and inside oil groove 202 of leading is opposite with the outside spiral direction of leading oil groove 102, sets up like this, can make outside lead inside lubricating oil entering of oil groove 102 inside lead oil groove 202 inside, can advance one and make lubricating oil evenly distributed at the fitting surface of round pin axle 1 and axle sleeve 2.
The oil leakage hole 201 is arranged on the outer side of the shaft sleeve 2 in a penetrating mode, the oil leakage hole 201 is located in the middle of the shaft sleeve 2, the outer ring groove 203 is arranged in the middle of the outer side of the shaft sleeve 2, the outer ring groove 203 is communicated with the inner oil guide groove 202 through the oil leakage hole 201, and therefore lubricating oil in the inner oil guide groove 202 enters the outer ring groove 203 through the oil leakage hole 201, and the outer wall of the shaft sleeve 2 is lubricated.
The outer end of the pin shaft 1 is provided with a positioning cavity 105, the positioning cavity 105 is coaxially communicated with the oil injection cavity 104 and used for positioning the pressure injection oil cup, and the installation stability of the pressure injection oil cup can be guaranteed due to the arrangement.
The outer wall of the end part of the pin shaft 1 provided with the positioning cavity 105 is symmetrically provided with plane parts 103, so that the pin shaft 1 can be conveniently disassembled and assembled.
Adopt above-mentioned structure, during the use, will press the oiling cup to install at oiling chamber 104 tip, pour into lubricating oil through pressing the oiling cup to oiling chamber 104 inside, lubricating oil gets into outside through oil outlet 101 and leads inside oil groove 102 to reach axle sleeve 2 and the fitting surface of round pin axle 1, play the lubrication action, can reduce the wearing and tearing of round pin axle 1 and axle sleeve 2, play the shock attenuation and reduce the effect of noise.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (7)
1. The utility model provides a commercial car air suspension guiding mechanism oiling formula round pin axle and axle sleeve structure which characterized in that: the oil injection cavity (104) penetrates through the outer end of the pin shaft (1), and an internal thread is arranged on the inner wall, close to the outer end of the pin shaft (1), of the oil injection cavity (104) and used for installing a pressure injection oil cup; the outer wall of the pin shaft (1) matched with the shaft sleeve (2) is provided with an external oil guide groove (102), the oil guide groove extends along the axial direction of the pin shaft (1), and the outer wall of the pin shaft (1) is provided with an oil outlet (101) in a penetrating mode and used for communicating the oil injection cavity (104) with the external oil guide groove (102).
2. The oiling type pin shaft and shaft sleeve structure of the air suspension guide mechanism of the commercial vehicle as claimed in claim 1, is characterized in that: the external oil guide groove (102) extends along the axial direction of the pin shaft (1) in a spiral mode.
3. The oiling type pin shaft and shaft sleeve structure of the air suspension guide mechanism of the commercial vehicle as claimed in claim 2, is characterized in that: the oil outlet hole (101) is positioned in the middle of the external oil guide groove (102).
4. The oiling type pin shaft and shaft sleeve structure of the air suspension guide mechanism of the commercial vehicle as claimed in claim 2, is characterized in that: the inner wall of the shaft sleeve (2) is provided with an internal oil guide groove (202), the internal oil guide groove (202) extends in a spiral mode along the axial direction of the shaft sleeve (2), and the internal oil guide groove (202) is opposite to the spiral direction of the external oil guide groove (102).
5. The oiling type pin shaft and shaft sleeve structure of the air suspension guide mechanism of the commercial vehicle as claimed in claim 4, is characterized in that: an oil leakage hole (201) penetrates through the outer side of the shaft sleeve (2), the oil leakage hole (201) is located in the middle of the shaft sleeve (2), an outer ring groove (203) is arranged in the middle of the outer side of the shaft sleeve (2), and the outer ring groove (203) is communicated with the inner oil guide groove (202) through the oil leakage hole (201).
6. The oiling type pin shaft and shaft sleeve structure of the air suspension guide mechanism of the commercial vehicle as claimed in claim 1, is characterized in that: the outer end of the pin shaft (1) is provided with a positioning cavity (105), and the positioning cavity (105) is coaxially communicated with the oil injection cavity (104) and used for positioning the pressure oil injection cup.
7. The oiling type pin shaft and shaft sleeve structure of the air suspension guide mechanism of the commercial vehicle as claimed in claim 6, is characterized in that: the outer wall of the end part of the pin shaft (1) provided with the positioning cavity (105) is symmetrically provided with plane parts (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122075424.2U CN215474305U (en) | 2021-08-25 | 2021-08-25 | Oil injection type pin shaft and shaft sleeve structure of air suspension guide mechanism of commercial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122075424.2U CN215474305U (en) | 2021-08-25 | 2021-08-25 | Oil injection type pin shaft and shaft sleeve structure of air suspension guide mechanism of commercial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215474305U true CN215474305U (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122075424.2U Active CN215474305U (en) | 2021-08-25 | 2021-08-25 | Oil injection type pin shaft and shaft sleeve structure of air suspension guide mechanism of commercial vehicle |
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| CN (1) | CN215474305U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115419649A (en) * | 2022-11-07 | 2022-12-02 | 山东鲁宇重工机械制造有限公司 | Hinge pin for loader bucket |
-
2021
- 2021-08-25 CN CN202122075424.2U patent/CN215474305U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115419649A (en) * | 2022-11-07 | 2022-12-02 | 山东鲁宇重工机械制造有限公司 | Hinge pin for loader bucket |
| CN115419649B (en) * | 2022-11-07 | 2023-02-03 | 山东鲁宇重工机械制造有限公司 | Hinge pin for loader bucket |
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