CN109421018B - Oil seal assembly tool - Google Patents
Oil seal assembly tool Download PDFInfo
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- CN109421018B CN109421018B CN201710754973.8A CN201710754973A CN109421018B CN 109421018 B CN109421018 B CN 109421018B CN 201710754973 A CN201710754973 A CN 201710754973A CN 109421018 B CN109421018 B CN 109421018B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
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- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The embodiment of the invention provides an oil seal assembly tool, which is used for installing an oil seal to be assembled in an oil seal groove formed between an installation seat and an installation shaft. This oil blanket assembly fixture includes: the device comprises a first guide post, an assembling stud, a press-fitting push cylinder and an assembling nut. The mounting shaft is inserted in the first accommodating groove, the first end of the assembly stud, extending out of the first end face of the first guide column, is inserted in a third central hole formed in the mounting shaft and connected with the mounting shaft in a threaded manner, the oil seal sleeve is arranged on the first outer diameter portion of the first guide column, the third end face of the press-fitting push cylinder is abutted to the oil seal, when the assembly stud rotates towards the direction close to the press-fitting push cylinder in the assembly stud, the press-fitting push cylinder is pushed to move through the assembly stud, and the press-fitting push cylinder pushes the oil seal to move towards the direction close to the oil seal groove. Above-mentioned technical scheme not only can guarantee adjusting well of oil blanket and axle, can also guarantee the centering of pressure equipment pushing cylinder and oil blanket and installation axle, prevents that the oil blanket pressure in-process from appearing oil blanket pressure bias and the improper problem that leads to the damage of oil blanket lip of pressure equipment.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to an oil seal assembling tool.
Background
The oil seal is a sealing ring, and is a key part for preventing lubricating oil from leaking in the running and static states of shaft parts. Besides the design and manufacturing quality of the oil seal, the correctness of the oil seal assembly is also the last link for preventing the leakage of the lubricating oil. In the assembling process, the depth of the oil seal relative to the end face of the mounting groove, the coaxiality with the axial lead, the jumping and the like are required to have strict regulations, and the oil seal can be damaged if the operation is not proper. Therefore, the installation quality of the oil seal directly affects the sealing performance and the working stability of the engine, and the oil seal and the working stability all put high technical requirements on the assembly process of the oil seal.
For the installation of the oil seal, the installation of the installation seat and the installation shaft can be completed firstly, and then the oil seal is pressed on the installation shaft in a sleeving manner while being pressed on the installation seat. When the conventional oil seal is pressed and installed with the sleeving installation shaft in synchronous operation, the alignment of the oil seal and the installation shaft is emphasized, the alignment of the pressing push cylinder, the oil seal and the installation shaft is neglected easily, the risk of oil seal pressure deviation exists in the pressing process, particularly, the oil seal of PTFE (polytetrafluoroethylene) type sensitive to displacement and deformation is damaged easily, and once the lip is damaged by small collision, oil leakage cannot be avoided.
Disclosure of Invention
The embodiment of the invention provides an oil seal assembly tool, which aims to solve the problems that in the prior art, in the oil seal assembly process, an oil seal lip is easy to damage and the oil seal pressure is biased.
In order to solve the technical problems, the invention adopts the following technical scheme:
the embodiment of the invention provides an oil seal assembly tool, which is used for installing an oil seal to be assembled in an oil seal groove formed between an installation seat and an installation shaft.
Wherein, oil blanket assembly fixture includes:
the first guide column comprises a first central hole penetrating through a first end face and a second end face which are opposite, and a first accommodating groove matched with the mounting shaft is formed in the first end face; and the first guide post further comprises: a first outer diameter portion and a second outer diameter portion, the first outer diameter portion fitting to an inner diameter of the oil seal;
the assembling stud is inserted into the first guide column through the first central hole, and two ends of the assembling stud respectively extend out of the first end face and the second end face of the first guide column;
the press-fitting push cylinder comprises a second central hole penetrating through a third end face and a fourth end face which are opposite, and a second accommodating groove is formed in the third end face; the press-fitting push cylinder penetrates through the assembly stud through the second central hole, and the second end of the assembly stud penetrates out through the fourth end face; at least one part of the first guide column is arranged in the second accommodating groove, wherein the second outer diameter part of the first guide column is matched with the second accommodating groove of the press-fitting push cylinder;
the assembling nut is sleeved on the assembling stud through the second end of the assembling stud;
the mounting shaft is inserted into the first accommodating groove, and the assembling stud is inserted into a third central hole formed in the mounting shaft through a first end, extending out of the first end face of the first guide column, and is in threaded connection with the mounting shaft; the oil seal is sleeved on the first outer diameter part of the first guide column, the third end face of the press-fitting push cylinder is abutted to the oil seal, when the assembly stud rotates towards the direction close to the press-fitting push cylinder, the assembly stud pushes the press-fitting push cylinder to move, and the press-fitting push cylinder pushes the oil seal to move towards the direction close to the oil seal groove.
Furthermore, a third accommodating groove is formed in the second end face of the first guide post, a clamping portion is arranged on the assembling stud, and when the assembling stud is inserted into the first guide post through the first center hole, the clamping portion is clamped in the third accommodating groove and is abutted to the bottom face of the third accommodating groove.
Further, the outer diameter of the second outer diameter part of the first guide column is larger than that of the first outer diameter part, and an annular cross section is formed between the second outer diameter part and the first outer diameter part;
the oil seal is sleeved on the first outer diameter part and is abutted against the annular cross section.
Further, the third end face of the press-fitting push cylinder comprises: the oil seal groove is provided with an abutting part abutting against the oil seal, and a limiting boss abutting against the end face of the side wall of the oil seal groove when the oil seal moves into the oil seal groove.
The abutting part protrudes out of the limiting boss along the axial direction of the press-fitting push cylinder.
Further, the oil blanket assembly fixture still includes: a second guide post;
the second guide post includes: the third outer diameter part is matched with the first accommodating groove of the first guide column, and the fourth outer diameter part is connected with the third outer diameter part;
wherein the fourth outer diameter portion comprises: a first portion connected to the third outer diameter portion and a second portion remote from the third outer diameter portion, the first portion having a diameter equal to the diameter of the first outer diameter portion of the first guide post, the second portion having a diameter smaller than the diameter of the first outer diameter portion of the first guide post, the first portion being smoothly connected to the second portion.
Further, the outer diameter of the second portion gradually increases in the axial direction from the second portion to the first portion.
Further, the second guide post further comprises: a fourth central bore extending through the fifth and sixth opposing end surfaces of the second guide post.
Further, the edge of the fifth end surface of the second guide post is arc-shaped.
The invention has the beneficial effects that:
above-mentioned technical scheme is applicable to under the condition that mount pad and installation axle have accomplished the assembly, realizes the assembly to the oil blanket. According to the oil seal assembly tool, the first outer diameter part of the first guide column is matched with the inner diameter of an oil seal, so that the oil seal is sleeved on the first outer diameter part in an upright manner; the first accommodating groove of the first guide column is matched with the first end of the mounting shaft, so that the first guide column is sleeved on the mounting shaft in an upright manner; the second containing groove of pressure equipment push cylinder and the second outside diameter part looks adaptation of first guide post can make the pressure equipment push cylinder stable and just the ground cover locate first guide post on, and the removal of radial position does not take place, like this, in the oil blanket assembling process, not only can guarantee adjusting well of oil blanket and axle, can also guarantee the centering of pressure equipment push cylinder and oil blanket and installation axle, prevent that the oil blanket pressure in-process from appearing the problem that the oil blanket pressure is partial and the improper oil blanket lip damage that leads to of pressure equipment.
Drawings
FIG. 1 is a schematic structural diagram of a first guide post according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a press-fitting pusher according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an assembly tool according to an embodiment of the present invention;
fig. 4 is another schematic structural diagram of the assembly fixture according to the embodiment of the present invention;
FIG. 5 is an enlarged schematic view of portion A of FIG. 4 according to an embodiment of the present invention;
fig. 6 is another schematic structural diagram of the assembly fixture according to the embodiment of the present invention;
FIG. 7 is a schematic structural view of a second guide post according to an embodiment of the present invention;
FIG. 8 is a cross-sectional view of a second guidepost and oil seal provided by an embodiment of the present invention;
FIG. 9 is a schematic view of a second guide post coupled to a first guide post according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of the second guide post and the first guide post in cooperation according to the embodiment of the present invention.
Description of reference numerals:
1. a first guide post; 2. assembling a stud; 3. press-fitting a push cylinder; 4. assembling a nut; 5. oil sealing; 6. a mounting seat; 7. installing a shaft; 8. an oil seal groove; 9. a second guide post;
101. a first end face; 102. a second end face; 103. a first central aperture; 104. a first accommodating groove; 105. a first outer diameter portion; 106. a second outer diameter portion; 107. a third accommodating groove; 108. an annular cross section;
201. assembling a first end of a stud; 202. assembling a second end of the stud; 203. a clamping part;
301. a third end face; 302. a fourth end face; 303. a second central aperture; 304. a second accommodating groove; 3011. an abutting portion; 3012. a limiting boss;
501. a lip of the oil seal;
801. the end face of the side wall of the oil seal groove;
901. a third outer diameter portion; 902. a fourth outer diameter portion; 903. a fifth end face; 904. a sixth end surface; 905. a fourth center hole; 9021. a first portion; 9022. a second portion; 9041. and (5) chamfering structure.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The embodiment of the invention provides an oil seal assembly tool, which is used for installing an oil seal 5 to be assembled in an oil seal groove 8 formed between an installation seat 6 and an installation shaft 7.
As shown in fig. 1 to 6, the oil seal assembling tool includes: the device comprises a first guide post 1, a press-fitting push cylinder 3, an assembling stud 2 and an assembling nut 4.
As shown in fig. 1 and 3, the first guide post 1 has a first center hole 103, and the first center hole 103 penetrates through a first end surface 101 and a second end surface 102 of the first guide post 1. The first end surface 101 of the first guiding column 1 is provided with a first accommodating groove 104 adapted to the mounting shaft 7. During assembly of the oil seal 5, one end of the mounting shaft 7 is inserted into the first receiving groove 104.
The first guide post 1 further includes: a first outer diameter portion 105 and a second outer diameter portion 106. The first outer diameter portion 105 is an outer sidewall of the first receiving groove 104. The first outer diameter portion 105 is adapted to the inner diameter of the oil seal 5. During assembly of the oil seal 5, the oil seal 5 is fitted over the first outer diameter portion 105.
Since the first receiving groove 104 is adapted to the mounting shaft 7, and the outer side wall (i.e., the first outer diameter portion 105) of the first receiving groove 104 is adapted to the inner diameter of the oil seal 5, and the outer side wall and the inner diameter are both in a close-clearance fit tolerance, the alignment of the oil seal 5 and the mounting shaft 7 can be ensured in the assembling process of the oil seal 5.
As shown in fig. 3, in the process of assembling the oil seal 5, the assembly stud 2 is inserted into the first guide post 1 through the first central hole 103, the first end 201 and the second end 202 of the assembly stud 2 respectively extend out of the first end face 101 and the second end face 102 of the first guide post 1, and the first end 201 of the assembly stud 2 is inserted into the third central hole of the mounting shaft 7 and is screwed with the mounting shaft 7, so as to firmly fix the assembly stud 2. As shown in fig. 4, during the assembly of the oil seal 5, the assembly nut 4 is fitted over the assembly stud 2 via the second end 202 of the assembly stud 2.
As shown in fig. 2 and 3, the press-fitting pusher 3 has a second central hole 303, and the second central hole 303 penetrates through a third end surface 301 and a fourth end surface 302 of the press-fitting pusher 3. A second receiving groove 304 is formed in the third end surface 301 of the press-fitting push cylinder 3.
In the process of assembling the oil seal 5, the press-fitting push cylinder 3 is sleeved outside the first guide column 1. The initial position of the press-fitting push cylinder 3 sleeved on the first guide post 1 is the second outer diameter portion 106 of the first guide post 1, and at this time, the second outer diameter portion 106 of the first guide post 1 is inserted into the second receiving groove 304.
In the embodiment of the present invention, the second outer diameter portion 106 of the first guide post 1 is adapted to the second receiving groove 304 of the press-fitting push cylinder 3, the outer diameter of the second outer diameter portion 106 and the inner diameter of the second receiving groove 304 use the same nominal diameter, and a close tolerance is provided between the outer diameter and the inner diameter, so that the press-fitting push cylinder 3 can be guided, and the press-fitting push cylinder 3 can be prevented from shaking in the radial direction during the moving process.
During the assembly of the oil seal 5, the press-fitting push cylinder 3 is inserted through the second central hole 303 on the assembly stud 2, the second end 202 of the assembly stud 2 is inserted through the fourth end face 302 of the press-fitting push cylinder 3, and at least a portion (e.g., the second outer diameter portion 106) of the first guide post 1 is disposed in the second receiving groove 304.
In order to further understand the oil seal assembling tool provided by the embodiment of the invention, the assembling process of the oil seal 5 is described in detail as follows:
1) the oil seal 5 is fitted over the first outer diameter portion 105 of the first guide post 1 in the direction of the oil seal lip 501.
2) The first guide post 1 is sleeved outside the mounting shaft 7 mounted on the mounting seat 6, so that one end of the mounting shaft 7 is inserted into the first receiving groove 104 of the first guide post 1, as shown in fig. 3.
3) The first end 201 of the mounting stud 2 is inserted into the first center hole 103 from the second end face 102 of the first guide post 1, passes through the second end face 102 of the first guide post 1, is inserted into the third center hole on the mounting shaft 7, and is fixedly connected to the mounting shaft 7, as shown in fig. 3.
4) The press-fitting push cylinder 3 is inserted through the second central hole 303 on the mounting stud 2 and sleeved outside the second outer diameter portion 106 of the first guide column 1, so that the third end surface 301 of the press-fitting push cylinder 3 abuts against the oil seal 5, as shown in fig. 4.
5) The fitting nut 4 is sleeved on the second end 202 of the fitting stud 2 and abuts against the fourth end face 302 of the press-fitting push cylinder 3, as shown in fig. 4.
6) The assembling nut 4 is rotated towards the direction close to the oil seal groove 8, the press-fitting push cylinder 3 is pushed to move by the assembling nut 4, and the oil seal 5 is pushed to move towards the direction close to the oil seal groove 8 by the movement of the press-fitting push cylinder 3 until the oil seal 5 is completely pushed into the oil seal groove 8, as shown in fig. 6.
And then, assembling the oil seal 5, and after the oil seal 5 is pressed in place, reversely operating and disassembling the assembling tool.
The oil seal assembling tool provided by the embodiment of the invention is suitable for assembling the oil seal 5 under the condition that the mounting seat 6 and the mounting shaft 7 are assembled. In the oil seal assembly tool, a first outer diameter part 105 of a first guide column 1 is matched with the inner diameter of an oil seal 5, so that the oil seal 5 is sleeved on the first outer diameter part 105 in an upright manner; the first accommodating groove 104 of the first guide post 1 is matched with the first end 201 of the mounting shaft 7, so that the first guide post 1 is positively sleeved on the mounting shaft 7; the second accommodation groove 304 of the press-fitting push cylinder 3 is matched with the second outer diameter part 106 of the first guide post 1, the press-fitting push cylinder 3 can be stably and rightly sleeved on the first guide post 1, and the radial position does not shake, so that in the assembly process of the oil seal 5, the alignment of the oil seal 5 and the installation shaft 7 can be ensured, the alignment of the press-fitting push cylinder 3 and the oil seal 5 and the installation shaft 7 can also be ensured, and the problems that the oil seal 5 is biased and the press-fitting does not lead to the damage of the oil seal lip 501 in the press-fitting process of the oil seal 5 are prevented.
Further, the axial length of the second outer diameter portion 106 ranges from: 20 mm-25 mm, thus having better guiding and centering function for the press-fitting push cylinder 3.
Further, as shown in fig. 3, a third receiving groove 107 is formed on the second end surface 102 of the first guiding stud 1, and a fastening portion 203 is disposed on the assembling stud 2. When the assembly stud 2 is inserted into the first guide post 1 through the first center hole 103, the clamping portion 203 is clamped in the third receiving groove 107 and tightly abuts against the bottom surface of the third receiving groove 107, so as to tightly press the first guide post 1 onto the mounting shaft 7, and meanwhile, the weight of the first guide post 1 can be reduced due to the design of the third receiving groove 107.
In the embodiment of the present invention, the clamping portion 203 of the assembling stud 2 is adapted to the third receiving groove 107, for example, if the third receiving groove 107 is a cylindrical groove, the clamping portion 203 is in a disc-shaped structure and abuts against the side wall of the third receiving groove 107 and the bottom surface of the groove, so that the assembling stud 2 can be prevented from shaking in the radial direction.
Further, as shown in fig. 1, the first outer diameter portion 105 of the first guide post 1 is connected with the second outer diameter portion 106, and the outer diameter of the second outer diameter portion 106 of the first guide post 1 is larger than the outer diameter of the first outer diameter portion 105. An annular cross-section 108 is formed between the second outer diameter portion 106 and the first outer diameter portion 105. The oil seal 5 is fitted over the first outer diameter portion 105, abutting against the annular cross section 108, to locate the position of the oil seal 5 on the first outer diameter portion 105.
Wherein, along the radial direction of the first guide post 2, the oil seal 5 protrudes from the second outer diameter portion 106 so as to be capable of abutting against the oil seal 5 when the press-fitting push cylinder 3 is fitted over the first guide post 1.
Further, as shown in fig. 5, the third end surface 301 of the press-fitting pusher 3 includes: an abutting portion 3011 abutting against the oil seal 5, and a limit boss 3012 abutting against the end face 801 of the side wall of the oil seal groove 8 when the oil seal 5 moves into the oil seal groove 8. Wherein, along the axial direction of the press-fitting push cylinder 3, the abutting part 3011 protrudes out of the limit boss 3012.
When the press-fitting push cylinder 3 is sleeved on the first guide post 1, the abutting portion 3011 abuts against the oil seal 5, so that the oil seal 5 is pushed to move by the movement of the press-fitting push cylinder 3. Further, in order to ensure a proper press-in depth of the oil seal 5, when the limit boss 3012 abuts against the end face 801 of the side wall of the oil seal groove 8, the press-fitting of the oil seal 5 is stopped.
Further, as shown in fig. 7 to 10, the oil seal assembling tool further includes: a second guide post 9. The second guide column 9 is used for sleeving the oil seal 5 to be assembled on the first guide column 1 to pre-install the oil seal 5.
As shown in fig. 7, the second guide post 9 includes: a third outer diameter portion 901 fitted to the first receiving groove 104 of the first guide post 1, and a fourth outer diameter portion 902 connected to the third outer diameter portion 901.
Specifically, the fourth outer diameter portion 902 includes: a first portion 9021 connected to the third outer diameter portion 901, and a second portion 9022 remote from the third outer diameter portion 901. Wherein the first part 9021 is smoothly connected with the second part 9022.
The first portion 9021 is a uniform cylindrical structure with a constant outer diameter, and the outer diameter of the first portion 9021 is equal to the outer diameter of the first outer diameter portion 105 of the first guide column 1.
The second part 9022 is of a conical column structure, the diameter of the second part 9022 is smaller than that of the first outer diameter part 105 of the first guide column 1, and the outer diameter of the second part 9022 gradually increases along the axial direction from the second part 9022 to the first part 9021 until the second part 9022 is smoothly connected with the first part 9021.
The exposed end surface of the second portion 9022 and the exposed end surface of the third outer diameter portion 901 are two end surfaces of the second guide column 9, namely a fifth end surface 903 and a sixth end surface 904.
To further understand the function of the second guide post 9, the operation of the second guide post 9 is described below:
1) the oil seal 5 is nested from the second section 9022 of the second guide post 9 in the direction of the oil seal lip 501 and translated to the first section 9021 as shown in fig. 8.
Wherein the inner diameter of the oil seal 5 is slightly smaller than the outer diameter of the first portion 9021. Because the second part 9022 is the toper structure, oil blanket 5 is in the removal in-process of second part 9022, and oil blanket lip 501 can be by even expansion to a certain extent (generally slightly bigger than the external diameter of installation axle 7 some), through the slight expansion to oil blanket lip 501, can make things convenient for oil blanket lip 501 to install the removal on axle 7 surface at the oil blanket 5 in-process of impressing, guarantees that oil blanket lip 501 is not torn, the fish tail to make better in assembling oil blanket 5 to oil blanket groove 8. It can be understood, of course, that the expansion of the oil seal lip 501 falls within the safe deformation range of the oil seal lip 501, that is, the expansion does not damage the oil seal lip 501, and the use of the oil seal 5 is affected.
Correspondingly, the outer diameter of the first outer diameter part 105 of the first guide post 1 is slightly larger than the inner diameter of the oil seal 5 and the outer diameter of the mounting shaft 7, so that when the oil seal 5 is separated from the first outer diameter part 105, the oil seal lip 501 can recover to a certain size due to the elasticity of the oil seal lip 501, so that the oil seal lip can be better attached to the surface of the mounting shaft 7, and the sealing effect is ensured.
2) The first guide post 1 is sleeved outside the second guide post 9, so that the third outer diameter portion 901 of the second guide post 9 is inserted into the first receiving groove 104, as shown in fig. 9.
Here, since the outer diameter of the first part 9021 is equal to the outer diameter of the first outer diameter part 105 of the first guide post 1, a smooth plane is formed outside the joint of the first guide post 1 and the second guide post 9 to prevent the oil seal lip 501 from being scratched when the oil seal 5 passes through.
3) The oil seal 5 is translated onto the first outer diameter portion 105 of the first guidepost 1 along the plane formed by the junction of the first guidepost 1 and the second guidepost 9, as shown in figure 10.
4) The first guide column 1 and the second guide column 9 are separated, and the first guide column 1 is sleeved outside the mounting shaft 7.
The above is the operation principle and the operation process of the second guide post 9.
Further, as shown in fig. 8, in order to reduce the weight of the first guide post 1, the second guide post 9 further includes: a fourth central hole 905 extends through the fifth 903 and sixth 904 end surfaces of the second guide post 9.
Further, the edge of the fifth end surface 903 of the second guiding column 9 is arc-shaped, so that the oil seal lip 501 cannot be scratched by a sharp edge when the oil seal 5 is sleeved on the second guiding column 9.
Further, as shown in fig. 7, the edge of the sixth end surface 904 of the second guide post 9 is a chamfered structure 9041, so as to avoid interference with the arc-shaped groove bottom of the first receiving groove 104 of the first guide post 1.
The oil seal assembling tool provided by the embodiment of the invention is suitable for assembling the oil seal 5 under the condition that the assembling of the mounting seat 6 and the mounting shaft 7 is completed, and is particularly suitable for assembling the PTFE oil seal 5.
According to the oil seal assembly tool, the first outer diameter part 105 of the first guide column 1 is matched with the inner diameter of the oil seal 5, so that the oil seal 5 is sleeved on the first outer diameter part 105 in an upright manner; the first accommodating groove 104 of the first guide post 1 is matched with the first end 201 of the mounting shaft 7, so that the first guide post 1 is positively sleeved on the mounting shaft 7; second containing groove 304 of pressure equipment push cylinder 3 and the second outside diameter part 106 looks adaptation of first guide post 1, can make pressure equipment push cylinder 3 stable and hold just ground cover locate first guide post 1 on, and do not take place rocking of radial position, and thus, in oil blanket 5 assembling process, not only can guarantee adjusting well of oil blanket 5 and installation axle 7, can also guarantee the centering of pressure equipment push cylinder 3 and oil blanket 5 and installation axle 7, prevent that oil blanket 5 pressure bias and pressure equipment from appearing in the 5 pressure equipment processes of oil blanket and the improper problem that leads to oil blanket lip 501 to damage, guarantee oil blanket lip 501's sealing action.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.
Claims (6)
1. The utility model provides an oil blanket assembly fixture for oil blanket (5) to be assembled are installed in oil blanket groove (8) that form between mount pad (6) and installation axle (7), its characterized in that, oil blanket assembly fixture includes:
the first guide post (1) comprises a first center hole (103) penetrating through a first end face (101) and a second end face (102) which are opposite, and a first accommodating groove (104) matched with the mounting shaft (7) is formed in the first end face (101); and the first guide post (1) further comprises: a first outer diameter portion (105) and a second outer diameter portion (106), the first outer diameter portion (105) being adapted to an inner diameter of the oil seal (5);
the assembling stud (2) is inserted into the first guide column (1) through the first central hole (103), and two ends of the assembling stud respectively extend out of the first end surface (101) and the second end surface (102) of the first guide column (1);
the press-fitting push cylinder (3) comprises a second central hole (303) penetrating through a third end face (301) and a fourth end face (302) which are opposite, and a second accommodating groove (304) is formed in the third end face (301); the press-fitting push cylinder (3) penetrates through the assembly stud (2) through the second central hole (303), and the second end (202) of the assembly stud (2) penetrates out through the fourth end face (302); at least one part of the first guide column (1) is arranged in the second accommodating groove (304), wherein the second outer diameter part (106) of the first guide column (1) is matched with the second accommodating groove (304) of the press-fitting push cylinder (3);
the assembling nut (4) is sleeved on the assembling stud (2) through the second end (202) of the assembling stud (2);
the mounting shaft (7) is inserted into the first accommodating groove (104), and the assembling stud (2) is inserted into a third central hole formed in the mounting shaft (7) through a first end (201) extending out of the first end surface (101) of the first guide column (1) and is in threaded connection with the mounting shaft (7); the oil seal (5) is sleeved on a first outer diameter part (105) of the first guide column (1), a third end surface (301) of the press-fitting push cylinder (3) is abutted to the oil seal (5), when the assembling nut (4) rotates towards the direction close to the press-fitting push cylinder (3) on the assembling stud (2), the press-fitting push cylinder (3) is pushed to move through the assembling nut (4), and the press-fitting push cylinder (3) pushes the oil seal (5) to move towards the direction close to the oil seal groove (8);
a third accommodating groove (107) is formed in the second end face (101) of the first guide post (1), a clamping portion (203) is arranged on the assembling stud (2), and when the assembling stud (2) is inserted into the first guide post (1) through the first center hole (103), the clamping portion (203) is clamped in the third accommodating groove (107) and abuts against the groove bottom face of the third accommodating groove (107);
wherein, oil blanket assembly fixture still includes: a second guide post (9);
the second guide post (9) comprises: a third outer diameter portion (901) adapted to the first receiving groove (104) of the first guide post (1) and a fourth outer diameter portion (902) connected to the third outer diameter portion (901);
wherein the fourth outer diameter portion (902) comprises: a first portion (9021) connected with the third outer diameter portion (901) and a second portion (9022) far away from the third outer diameter portion (901), wherein the diameter of the first portion (9021) is equal to that of the first outer diameter portion (105) of the first guide column (1), the diameter of the second portion (9022) is smaller than that of the first outer diameter portion (105) of the first guide column (1), and the first portion (9021) is smoothly connected with the second portion (9022).
2. The oil seal assembling tool according to claim 1, characterized in that the outer diameter of the second outer diameter part (106) of the first guide column (1) is larger than that of the first outer diameter part (105), and an annular cross section (108) is formed between the second outer diameter part (106) and the first outer diameter part (105);
the oil seal (5) is sleeved on the first outer diameter part (105) and is abutted against the annular cross section (108).
3. The oil seal assembling tool according to claim 1, wherein the third end surface (301) of the press-fitting push cylinder (3) comprises: the oil seal structure comprises an abutting part (3011) abutting against the oil seal (5) and a limiting boss (3012) abutting against the end face (801) of the side wall of the oil seal groove (8) when the oil seal (5) moves into the oil seal groove (8);
the abutting part (3011) protrudes out of the limiting boss (3012) along the axial direction of the press-fitting push cylinder (3).
4. The oil seal assembling tool according to claim 1, wherein the outer diameter of the second portion (9022) is gradually increased in an axial direction from the second portion (9022) to the first portion (9021).
5. The oil seal assembling tool according to claim 1, wherein the second guide column (9) further comprises: a fourth central hole (905) penetrating through a fifth end surface (903) and a sixth end surface (904) of the second guide post (9) which are opposite.
6. The oil seal assembling tool according to claim 1, wherein the edge of the fifth end surface (903) of the second guide column (9) is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710754973.8A CN109421018B (en) | 2017-08-29 | 2017-08-29 | Oil seal assembly tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710754973.8A CN109421018B (en) | 2017-08-29 | 2017-08-29 | Oil seal assembly tool |
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| CN109421018A CN109421018A (en) | 2019-03-05 |
| CN109421018B true CN109421018B (en) | 2021-03-19 |
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| CN114310236B (en) * | 2022-01-24 | 2023-03-17 | 一汽解放汽车有限公司 | Engine oil seal assembly system |
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| CN2897569Y (en) * | 2006-03-31 | 2007-05-09 | 上海柴油机股份有限公司 | Installation tool of engine with conical-surface rear oil seal |
| US7900357B2 (en) * | 2007-03-20 | 2011-03-08 | GM Global Technology Operations LLC | Seal installation tool and method of using same |
| CN103567950B (en) * | 2012-07-18 | 2016-03-30 | 北汽福田汽车股份有限公司 | For installing device and the installation method of oil sealing on bent axle |
| CN103372841A (en) * | 2013-07-26 | 2013-10-30 | 浙江吉利汽车研究院有限公司 | Crankshaft oil seal assembly device |
| CN205129757U (en) * | 2015-11-13 | 2016-04-06 | 哈尔滨东安发动机（集团）有限公司 | Circlip assembly quality is used to axle |
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