CN115235747A - Multifunctional testing device for oil seal of differential - Google Patents
Multifunctional testing device for oil seal of differential Download PDFInfo
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- CN115235747A CN115235747A CN202210854662.XA CN202210854662A CN115235747A CN 115235747 A CN115235747 A CN 115235747A CN 202210854662 A CN202210854662 A CN 202210854662A CN 115235747 A CN115235747 A CN 115235747A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2853—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipe joints or seals
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Abstract
The invention discloses a multifunctional testing device for a differential oil seal, which comprises: lubricating oil supplies the oil tank, motor assembly and testing arrangement, motor assembly includes the motor shaft, testing arrangement includes the frock skeleton, the inside cavity that is formed with of frock skeleton, be equipped with the oil blanket drive shaft in the cavity, the oil blanket drive shaft is connected with the motor shaft, the cover is equipped with the oil blanket axle in the oil blanket drive shaft, both sides are equipped with the cavity slider about the oil blanket axle, frock skeleton top is equipped with rear end air side air inlet adapter, oil inlet adapter and front end air side air inlet adapter, frock skeleton below is equipped with rear end air side air outlet pressure sensor, oil-out pressure sensor and front end air side air outlet adapter. The multifunctional testing device for the oil seal of the differential mechanism, provided by the invention, has good expansibility; different oil seal performance tests can be implemented, and after minimum optimization, the oil seal performance tests with different sizes can be implemented; the method can be applied to the oil seal rotating in two directions and can be used for verifying the performance at the same time, and the verification efficiency is improved.
Description
Technical Field
The invention relates to the technical field of differentials, in particular to a multifunctional testing device for a differential oil seal.
Background
The differential oil seal is a typical rotating shaft lip-shaped sealing element, and is mainly used for sealing differential lubricating oil, preventing the lubricating oil from leaking to an air side, preventing dust and moisture on the air side from entering a lubricating oil cavity, and performing sealing performance tests of the oil seal in various application environments in order to avoid the influence of oil seal failure on a system. The oil seal is harsh in application environment, multiple verification test projects are needed, and the test conditions are different.
The existing oil seal testing machine adopts a dynamic excircle outline support structure, and in the process of rotating a motor spindle, the motor spindle drives the excircle outline support to move up and down or move left and right or do centrifugal rotation motion, so that an installation hole for oil seal treatment and the motor spindle are always coaxial in the testing process, and the tested oil seal and the motor spindle are ensured to be always coaxial in the testing process. This solution has the following drawbacks: 1) Similar products such as differential oil seals and the like cannot be directly sleeved on a shaft, and then the installation eccentricity of a motor shaft and the oil seal is one of verification tests of the oil seal, so that the differential oil seal product cannot be tested; 2) Only one sealing element can be verified at a time, and the verification efficiency is low for the sealing element rotating in two directions; 3) The device is designed for carrying out a sealing performance test of the oil seal, and does not have the capability of carrying out other performance tests of the oil seal (such as tests of eccentricity limit and the like); 4) The motor shaft and the oil seal are directly used for matching test, expansibility is poor, and the motor shaft and the oil seal can only be specially used for testing a certain oil seal.
Therefore, a multifunctional testing device for oil seal of differential is needed.
Disclosure of Invention
The invention aims to provide a multifunctional testing device for a differential oil seal, which is used for solving the problems in the prior art, has good expansibility, can implement different oil seal performance tests, and can implement the oil seal performance tests with different sizes after minimum optimization; the method can be applied to the oil seal rotating in two directions and can be used for verifying the performance at the same time, and the verification efficiency is improved.
The invention provides a multifunctional testing device for a differential oil seal, which comprises:
the testing device comprises a tool framework, a cavity is formed inside the tool framework, an oil seal driving shaft extending to the outside of the tool framework is arranged in the cavity, the oil seal driving shaft is connected with the motor shaft, an oil seal shaft is sleeved on the oil seal driving shaft, cavity sliders are respectively arranged on the upper side and the lower side of the oil seal shaft, the cavity sliders are in small clearance fit with the cavity, a lubricating oil cavity is formed in the cavity sliders, air cavities are respectively formed on the left side and the right side of the cavity sliders, a front cover plate is arranged at one end close to the motor shaft of the tool framework, a rear cover plate is arranged at one end far away from the motor shaft of the tool framework, a rear air inlet side inlet adapter, an oil inlet adapter and a front air inlet adapter are sequentially arranged above the tool framework, the oil inlet adapter corresponds to the position of the cavity sliders and is used for oil inlet of lubricating oil, and the rear air side inlet and the front air inlet adapter are used for communicating pressurized gas; the tool framework is characterized in that a rear-end air side air outlet pressure sensor, an oil outlet pressure sensor and a front-end air side air outlet adapter are sequentially arranged below the tool framework, the oil outlet pressure sensor corresponds to the cavity slider in position and is used for detecting the pressure of a lubricating oil cavity, and the rear-end air side air outlet pressure sensor is used for detecting the pressure of an air side.
The multifunctional testing device for the differential oil seal as described above, preferably, the lubricating oil supply tank includes a lubricating oil supply tank body, an oil outlet is provided at the top of the lubricating oil supply tank body, an oil return opening is provided at the lower end of the side wall of the lubricating oil supply tank, the oil outlet of the lubricating oil supply tank is connected with the oil inlet of the testing device through an oil outlet pipe, and the oil return opening of the lubricating oil supply tank is connected with the oil return opening of the testing device through an oil return pipe.
The multifunctional testing device for the differential oil seal as described above, wherein preferably, the oil inlet adapter is connected with the oil outlet of the lubricating oil supply tank through the oil outlet pipe.
The multifunctional testing device for the oil seal of the differential mechanism is characterized in that the motor shaft is connected with the oil seal driving shaft through a bolt, and the gap between the bolt and the corresponding bolt hole is adjustable so as to adjust the eccentricity between the oil seal driving shaft and the motor shaft.
As above multifunctional testing device for differential oil seal, wherein, preferably, the rear air side air inlet adapter the oil inlet adapter the front air side air inlet adapter the rear air side air outlet pressure sensor the oil outlet pressure sensor the front air side air outlet adapter pass through the same screw thread of interface size with the frock skeleton is connected to the screw thread department cover that corresponds respectively is equipped with O shape circle, in order to guarantee with the interface of frock skeleton is sealed.
The multifunctional testing device for the oil seal of the differential mechanism is characterized in that a first sealing gasket is arranged on the cavity matching surface of the cavity sliding block and the tool framework and used for sealing the lubricating oil cavity and preventing lubricating oil from leaking to the air side through a cavity between the cavity sliding block and the tool framework along a radial gap.
The multifunctional testing device for the oil seal of the differential mechanism is characterized in that the front cover plate is fixed on the tool framework through a front cover plate fixing bolt, the front cover plate fixing bolt is in clearance fit with the oil seal driving shaft, and the matching surface of the front cover plate and the tool framework is sealed through a second sealing gasket.
The multifunctional testing device for the oil seal of the differential mechanism is characterized in that the rear cover plate is fixed on the tool framework through a rear cover plate fixing bolt, and the matching surface of the rear cover plate and the tool framework is sealed through a third sealing gasket.
As above multifunctional testing device for differential oil seal, wherein, preferably, the end of the oil seal driving shaft is provided with an external thread with a preset length, the inner hole of the oil seal shaft is provided with an internal thread matched with the external thread, the oil seal driving shaft is connected with the oil seal shaft through a limit bolt of the oil seal shaft, the limit bolt of the oil seal shaft is fixed to the internal thread at the end of the oil seal driving shaft, so as to prevent the axial movement and the relative rotation of the oil seal driving shaft.
The multifunctional testing device for the oil seal of the differential mechanism is characterized in that the inner rings of the two sides of the cavity sliding block are provided with oil seals, the outer ring of each oil seal is in interference fit with the inner ring of the cavity sliding block, and the two oil seals on the two sides of the same cavity sliding block are arranged in a front-back backrest mode.
The invention provides a multifunctional testing device for a differential oil seal, which is simple, convenient and fast to install and has good expansibility; different oil seal performance tests can be implemented, and after minimum optimization, oil seal performance tests of different sizes can be implemented; the test device can be used for testing high-speed oil seals and low-speed oil seals; a single oil seal can be tested, 2 oil seals can be simultaneously tested, and the efficiency is higher; the performance of the oil seal rotating in two directions can be verified simultaneously, and the verification efficiency is improved.
Drawings
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described with reference to the accompanying drawings, in which:
FIG. 1 is a schematic overall structural diagram of an embodiment of a differential oil seal multifunctional testing device provided by the invention;
FIG. 2 is a schematic structural diagram of a lubricating oil supply tank of an embodiment of the multifunctional testing device for differential oil seals provided by the invention;
FIG. 3 is a schematic diagram illustrating a connection between a motor assembly and a testing device of an embodiment of the multifunctional testing device for a differential oil seal provided in the present invention;
FIGS. 4 and 5 are sectional views of a testing device of an embodiment of the differential oil seal multifunctional testing device provided by the invention;
FIG. 6 is a schematic structural diagram of a lubricating oil chamber of an embodiment of the multifunctional testing device for the oil seal of the differential provided by the invention;
FIG. 7 is a schematic structural diagram of a seal gasket of an embodiment of the differential oil seal multifunctional testing device provided by the invention.
Description of reference numerals: 1-a lube oil supply tank, 2-a motor assembly, 3-a test device, 4-an oil return pipe, 5-an oil outlet pipe, 6-an oil outlet, 7-an oil return port, 8-a lube oil supply tank box, 9-a motor shaft, 10-an oil seal drive shaft, 11-an oil seal shaft, 12-an oil seal shaft limit bolt, 13-a cavity block, 14-an oil seal, 15-a tooling skeleton, 16-a front cover plate, 17-a front cover plate fixing bolt, 18-a rear cover plate, 19-a rear cover plate fixing bolt, 20-a rear air side intake adapter, 21-an oil inlet adapter, 22-a front air side intake adapter, 23-a rear air side intake pressure sensor, 24-an oil outlet pressure sensor, 25-a front air side intake adapter, 26-a first gasket, 27-a lube oil cavity, 28-a second gasket, 29-a third gasket.
Detailed Description
Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the disclosure, its application, or uses. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments are to be construed as merely illustrative, and not restrictive, unless specifically stated otherwise.
"first", "second" used in the present disclosure: and the like, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word comprises the element listed after the word, and does not exclude the possibility that other elements may also be included. "upper", "lower", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
In the present disclosure, when a specific component is described as being located between a first component and a second component, there may or may not be intervening components between the specific component and the first component or the second component. When it is described that a specific component is connected to other components, the specific component may be directly connected to the other components without having an intervening component, or may be directly connected to the other components without having an intervening component.
All terms (including technical or scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
As shown in fig. 1 to 7, an embodiment of the present invention provides a multifunctional testing device for a differential oil seal, which includes: lubricating oil supply tank 1, motor assembly 2 and testing arrangement 3, as shown in fig. 1, one end of testing arrangement 3 is connected with lubricating oil supply tank 1, and the other end is connected with motor assembly 2, as shown in fig. 3, motor assembly 2 includes motor shaft 9, as shown in fig. 4 and 5, testing arrangement 3 includes tool skeleton 15, the inside cavity that is formed with of tool skeleton 15, be provided with the oil blanket drive shaft 10 that extends to the outside of tool skeleton 15 in the cavity, oil blanket drive shaft 10 is connected with motor shaft 9, the cover is equipped with oil blanket axle 11 on the oil blanket drive shaft 10, the upper and lower both sides of oil blanket axle 11 are provided with cavity slider 13 respectively, cavity slider 13 with little clearance fit between the cavity, as shown in fig. 6, be formed with lubricating oil cavity 27 in the cavity slider 13, the left and right sides of cavity slider 13 are formed with air oil inlet chamber respectively, as shown in fig. 5, tool skeleton 15 is provided with front cover plate 16 in the one end that is close to motor shaft 9, tool skeleton 15 is provided with rear cover plate 18 in the one end of keeping away from side lubricating oil supply tank 9, the top of tool skeleton is provided with rear cover plate air inlet port 20, air inlet port 21 and air adapter 20, air inlet port position for the adapter 20, adapter 20 is used for the adapter and adapter for the adapter, air inlet port for the adapter 20, the adapter of adapter 20 and adapter for the adapter of the air inlet port for the side inlet port of the adapter; a rear-end air-side air outlet pressure sensor 23, an oil outlet pressure sensor 24 and a front-end air-side air outlet adapter 25 are sequentially arranged below the tool framework 15, the oil outlet pressure sensor 24 corresponds to the cavity slider 13 in position and is used for detecting the pressure of a lubricating oil cavity 27, and the rear-end air-side air outlet pressure sensor 23 is used for detecting the pressure of an air side.
Wherein, as shown in fig. 2, lubricating oil supply tank 1 includes lubricating oil supply tank box 8, the top of lubricating oil supply tank box 8 is provided with oil-out 6, the lateral wall lower extreme of lubricating oil supply tank 1 is provided with oil return opening 7, lubricating oil supply tank 1's oil-out 6 through go out oil pipe 5 with testing arrangement 3's oil inlet is connected, lubricating oil supply tank 1's oil return opening 7 through return oil pipe 4 with testing arrangement 3's oil return opening is connected, and lubricating oil supply tank 1 links to each other with testing arrangement 3's oil inlet and oil return opening respectively through going out oil pipe 5 and return oil pipe 4 promptly, and be provided with oil pump, heater, pressure adjusting device in the lubricating oil supply tank box 8 to adjust volume, temperature, pressure etc. to exporting lubricating oil. The oil inlet adapter 21 is connected with the oil outlet 6 of the lubricating oil supply tank 1 through the oil outlet pipe 5.
Further, as shown in fig. 3, the motor shaft 9 is connected to the oil seal driving shaft 10 by a bolt, and a gap between the bolt and a corresponding bolt hole is adjustable to adjust an eccentric amount of the oil seal driving shaft 10 and the motor shaft 9.
Further, rear end air side air inlet adapter 20 oil inlet adapter 21 front end air side air inlet adapter 22 rear end air side air outlet pressure sensor 23 oil-out pressure sensor 24 front end air side air outlet adapter 25 through the same screw thread of interface size (screw thread specification is the same promptly) with frock skeleton 15 is connected to the screw thread department cover that corresponds respectively is equipped with O shape circle, in order to guarantee with frock skeleton 15's interface is sealed. In some embodiments of the present invention, the rear air side outlet pressure sensor 23 and the rear air side inlet adapter 20 may be exchanged or replaced with a switch valve having the same interface as required for exhausting the medium in the air chamber; the oil outlet pressure sensor 24 can be exchanged with the rear-end air-side intake adapter 20 or replaced with a switch valve with the same interface as required, and is used for exhausting the medium in the lubricating oil cavity 27; the front air side outlet adapter 25 can be replaced as needed with a switch valve of the same interface as the rear air side inlet adapter 20 for exhausting air chamber media. In some embodiments of the present invention, the installation positions of the rear air inlet adapter 20, the oil inlet adapter 21, the front air inlet adapter 22, the rear air outlet pressure sensor 23, the oil outlet pressure sensor 24, and the front air outlet adapter 25 may be interchanged or cancelled as needed.
Further, as shown in fig. 6, a first sealing gasket 26 is disposed on a cavity fitting surface of the cavity slider 13 and the tool framework 15, and is used for sealing the lubricating oil cavity 27 and preventing lubricating oil from leaking to an air side through a cavity between the cavity slider 13 and the tool framework 15 along a radial gap.
Further, as shown in fig. 5, the front cover plate 16 is fixed on the tool framework 15 through a front cover plate fixing bolt 17, the front cover plate fixing bolt 17 is in clearance fit with the oil seal driving shaft 10, and as shown in fig. 7, the matching surface of the front cover plate 16 and the tool framework 15 is sealed through a second sealing gasket 28; a front air cavity is formed between the front cover plate fixing bolt 17 and the tool framework 15 and can be used for tests of partially filling other liquid (such as water and the like) in the front air cavity, the function of a testing device of the front air cavity is expanded, and the front cover plate 16 applies pressing force to the cavity sliding block 13 after being fixed to prevent the cavity sliding block 13 from moving axially.
Further, as shown in fig. 5, the back cover plate 18 is fixed on the tool framework 15 by a back cover plate fixing bolt 19, and as shown in fig. 7, the matching surface of the back cover plate 18 and the tool framework 15 is sealed by a third sealing gasket 29. The rear cover plate fixing bolts 19 and the tool framework 15 and the like form a closed rear air cavity which can be used for pressurization test of the rear air cavity and also can be used for tests of partially or completely filling other liquids (such as water and the like) in the rear air cavity to expand the functions of a testing device of the rear cover plate fixing bolt, and the rear cover plate 18 fixes the rear cover plate and then applies pressing force to the cavity sliding block 13 to prevent the cavity sliding block 13 from moving axially.
Further, as shown in fig. 4, the tip of oil blanket drive shaft 10 is provided with the external screw thread of presetting length, the hole of oil blanket axle 11 be provided with thread fit's internal thread, oil blanket drive shaft 10 with oil blanket axle 11 passes through oil blanket axle limit bolt 12 and connects, oil blanket axle limit bolt 12 is including fixing the internal thread of oil blanket drive shaft 10 tip is used for preventing oil blanket axle 11's axial displacement and relative the relative rotation that oil blanket drive shaft 10 takes place.
Further, as shown in fig. 4, oil seals 14 are installed in inner rings of two sides of the cavity slider 13, in a specific implementation, the oil seals 14 may be installed in the inner rings of the cavity slider 13 through a special tool, an outer ring of the oil seal 14 is in interference fit with the inner rings of the cavity slider 13, and the two oil seals 14 on two sides of the same cavity slider 13 are installed in a front-back backrest manner, so that forward and reverse rotation characteristics can be verified simultaneously.
In operation, the oil inlet adapter 21 is installed on the tool framework 15, and is communicated with an oil outlet of the lubricating oil supply tank 1 through the oil outlet pipe 5, and a certain amount of lubricating oil with temperature and pressure is filled into the lubricating oil cavity 27, for example, 0.5bar and 90 ℃ oil pressure is provided through the lubricating oil supply tank 1 to fill the lubricating oil cavity, the actual pressure of the lubricating oil cavity 27 is detected through the oil outlet pressure sensor 24, the motor assembly 2 is started, so that the oil seal shaft 11 obtains a certain rotating speed, the front-end air-side air outlet adapter 25 is used for replacing the rear-end air-side air outlet pressure sensor 23, a measuring cup is placed below the front-end air-side air outlet adapter 25, and the oil amount collected by 2 air sides after a certain period of time is measured.
3 cavities are formed in the testing device 3, namely a lubricating oil cavity and air cavities on the front side and the rear side respectively, and different cavities can be filled with different media according to requirements; the pressure and the temperature of the medium are controlled, and pressure monitoring is carried out by using an oil port pressure sensor 24 and a rear-end air side air outlet pressure sensor 23; the testing device 3 can complete the tests of the sealing performance, the durability test, the shaft eccentricity resistance test, the back leakage test, the friction torque, the air tightness test, the dust prevention test and the like of the differential oil seal through the control of the temperature, the flow and the pressure of a medium; the testing device 3 can redesign the sizes of the oil seal shaft 11 and the cavity sliding block 13 according to different oil seals, so as to meet the testing requirements of the oil seals with different sizes.
The multifunctional testing device for the oil seal of the differential mechanism, provided by the embodiment of the invention, is simple, convenient to install and good in expansibility; different oil seal performance tests can be implemented, and after minimum optimization, the oil seal performance tests with different sizes can be implemented; the test device can be used for testing high-speed oil seals and low-speed oil seals; a single oil seal can be tested, 2 oil seals can be simultaneously tested, and the efficiency is higher; the performance of the oil seal rotating in two directions can be verified simultaneously, and the verification efficiency is improved.
Thus far, various embodiments of the present disclosure have been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. Those skilled in the art can now fully appreciate how to implement the teachings disclosed herein, in view of the foregoing description.
Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that various changes may be made in the above embodiments or equivalents may be substituted for elements thereof without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.
Claims (10)
1. The utility model provides a multi-functional testing arrangement of differential mechanism oil blanket which characterized in that includes:
the testing device comprises a tool framework, a cavity is formed inside the tool framework, an oil seal driving shaft extending to the outside of the tool framework is arranged in the cavity, the oil seal driving shaft is connected with the motor shaft, an oil seal shaft is sleeved on the oil seal driving shaft, cavity sliders are respectively arranged on the upper side and the lower side of the oil seal shaft, the cavity sliders are in small clearance fit with the cavity, a lubricating oil cavity is formed in the cavity sliders, air cavities are respectively formed on the left side and the right side of the cavity sliders, a front cover plate is arranged at one end close to the motor shaft of the tool framework, a rear cover plate is arranged at one end far away from the motor shaft of the tool framework, a rear air inlet side inlet adapter, an oil inlet adapter and a front air inlet adapter are sequentially arranged above the tool framework, the oil inlet adapter corresponds to the position of the cavity sliders and is used for oil inlet of lubricating oil, and the rear air side inlet and the front air inlet adapter are used for communicating pressurized gas; the tool framework is characterized in that a rear-end air side air outlet pressure sensor, an oil outlet pressure sensor and a front-end air side air outlet adapter are sequentially arranged below the tool framework, the oil outlet pressure sensor corresponds to the cavity slider in position and is used for detecting the pressure of a lubricating oil cavity, and the rear-end air side air outlet pressure sensor is used for detecting the pressure of an air side.
2. The multifunctional testing device for the differential oil seal according to claim 1, wherein the lubricating oil supply tank comprises a lubricating oil supply tank body, an oil outlet is formed in the top of the lubricating oil supply tank body, an oil return opening is formed in the lower end of the side wall of the lubricating oil supply tank, the oil outlet of the lubricating oil supply tank is connected with the oil inlet of the testing device through an oil outlet pipe, and the oil return opening of the lubricating oil supply tank is connected with the oil return opening of the testing device through an oil return pipe.
3. The multifunctional testing device for the oil seal of the differential gear as claimed in claim 2, wherein the oil inlet adapter is connected with the oil outlet of the lubricating oil supply tank through the oil outlet pipe.
4. A multifunctional testing device for an oil seal of a differential gear as claimed in claim 1, characterized in that the motor shaft is connected with the driving shaft of the oil seal through a bolt, and the gap between the bolt and the corresponding bolt hole is adjustable so as to adjust the eccentricity between the driving shaft of the oil seal and the motor shaft.
5. The multifunctional testing device for the differential oil seal according to claim 1, characterized in that the rear air side air inlet adapter the oil inlet adapter the front air side air inlet adapter the rear air side air outlet pressure sensor the oil outlet pressure sensor the front air side air outlet adapter pass through the same thread of the interface size and the tool skeleton is connected, and the corresponding thread positions are respectively sleeved with O-shaped rings to ensure the sealing of the interface of the tool skeleton.
6. The multifunctional testing device for the oil seal of the differential gear as claimed in claim 1, wherein a first sealing gasket is arranged on the cavity matching surface of the cavity sliding block and the tool framework and used for sealing the lubricating oil cavity and preventing lubricating oil from leaking to the air side through a cavity between the cavity sliding block and the tool framework along a radial gap.
7. The multifunctional testing device for the oil seal of the differential gear as claimed in claim 1, wherein the front cover plate is fixed on the tool framework through a front cover plate fixing bolt, the front cover plate fixing bolt is in clearance fit with the oil seal driving shaft, and the matching surface of the front cover plate and the tool framework is sealed through a second sealing gasket.
8. The multifunctional testing device for the oil seal of the differential gear as claimed in claim 1, wherein the rear cover plate is fixed on the tool framework through a rear cover plate fixing bolt, and the matching surface of the rear cover plate and the tool framework is sealed through a third sealing gasket.
9. A multifunctional testing device for an oil seal of a differential according to claim 1, characterized in that an end portion of the oil seal driving shaft is provided with an external thread of a preset length, an inner hole of the oil seal shaft is provided with an internal thread matched with the external thread, the oil seal driving shaft and the oil seal shaft are connected through an oil seal shaft limiting bolt, and the oil seal shaft limiting bolt comprises an internal thread fixed at an end portion of the oil seal driving shaft and is used for preventing the axial movement of the oil seal shaft and the relative rotation of the oil seal driving shaft.
10. A multifunctional testing device for oil seals of a differential gear according to claim 1, characterized in that oil seals are arranged in inner rings at two sides of the cavity sliding block, an outer ring of each oil seal is in interference fit with the inner ring of the cavity sliding block, and the two oil seals at two sides of the same cavity sliding block are arranged in a front-back backrest manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210854662.XA CN115235747A (en) | 2022-07-16 | 2022-07-16 | Multifunctional testing device for oil seal of differential |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210854662.XA CN115235747A (en) | 2022-07-16 | 2022-07-16 | Multifunctional testing device for oil seal of differential |
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| CN115235747A true CN115235747A (en) | 2022-10-25 |
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| CN202210854662.XA Pending CN115235747A (en) | 2022-07-16 | 2022-07-16 | Multifunctional testing device for oil seal of differential |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115524068A (en) * | 2022-10-31 | 2022-12-27 | 常州多密特密封科技有限公司 | Tightness testing device for multi-lip rotary oil seal |
-
2022
- 2022-07-16 CN CN202210854662.XA patent/CN115235747A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115524068A (en) * | 2022-10-31 | 2022-12-27 | 常州多密特密封科技有限公司 | Tightness testing device for multi-lip rotary oil seal |
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