CN112476302B - Equipment for press mounting of main shaft oil seal of trailer axle - Google Patents

Equipment for press mounting of main shaft oil seal of trailer axle Download PDF

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Publication number
CN112476302B
CN112476302B CN202011363062.0A CN202011363062A CN112476302B CN 112476302 B CN112476302 B CN 112476302B CN 202011363062 A CN202011363062 A CN 202011363062A CN 112476302 B CN112476302 B CN 112476302B
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CN
China
Prior art keywords
sleeve
oil seal
main shaft
servo motor
installation
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Active
Application number
CN202011363062.0A
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Chinese (zh)
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CN112476302A (en
Inventor
李静敏
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He'nan Fengbao Heavy Industry Technology Co ltd
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He'nan Fengbao Heavy Industry Technology Co ltd
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Priority to CN202011363062.0A priority Critical patent/CN112476302B/en
Publication of CN112476302A publication Critical patent/CN112476302A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • B25B11/02Assembly jigs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same

Abstract

The invention provides equipment for press mounting of an oil seal of a main shaft of a trailer axle, which comprises an installation rack, wherein a pushing mechanism is arranged in the installation rack, the working end of the pushing mechanism is fixedly connected with the main shaft of the trailer axle through a power head, a protective sleeve is arranged at the working end of the pushing mechanism and is fixedly connected with the rack, and a long sleeve matched with the oil seal for use is arranged at one end of the protective sleeve, which is far away from the rack. Thereby reducing labor intensity and personnel, and simultaneously ensuring the installation quality. The invention meets the production of high yield and assembly line operation.

Description

Equipment for press mounting of main shaft oil seal of trailer axle
Technical Field
The invention relates to the technical field of automobile part technological equipment, in particular to equipment for press mounting of a main shaft oil seal of a trailer axle.
Background
And the main shaft oil seal is required to be in interference fit and vertically and stably installed when being installed. At present, the spindle oil seal (workpiece) is installed in place by adopting an auxiliary tool manually (see figure 1), which has the problems of increasing labor intensity, increasing personnel and the like and has the defect of improper installation. The method is suitable for the mode with less yield and low installation requirement.
Disclosure of Invention
In order to solve the problems, the invention provides equipment for press mounting of an oil seal of a main shaft of a trailer axle.
The object of the invention is achieved in the following way:
the utility model provides an equip to hanging axle main shaft oil blanket pressure equipment, includes the installation frame, be equipped with pushing mechanism in the installation frame, pushing mechanism's work end passes through unit head fixed connection axle main shaft, and the work end bearing at pushing mechanism is equipped with a lag sleeve, a lag sleeve and frame fixed connection, the one end of keeping away from the frame at a lag sleeve is equipped with and uses the long sleeve with the oil blanket cooperation.
The pushing mechanism comprises a servo motor and a transmission rod, the servo motor is connected with the transmission rod through a belt, the transmission rod is in threaded connection with a telescopic sleeve, the telescopic sleeve is in sliding connection with a pushing seat, a power head is hinged to one end of the telescopic sleeve, the servo motor is far away from the telescopic sleeve, the power head is an installation sleeve, the installation sleeve is connected with an axle spindle through a connecting sleeve, the connecting sleeve is fixedly connected with the installation sleeve, and the servo motor is fixed inside the rack.
The one end of keeping away from servo motor at the telescope tube is equipped with the rotary column, the telescope tube passes through the articulated installation cover of rotary column.
The push seat is internally provided with a slide matched with the telescopic sleeve for use, and the cross sections of the telescopic sleeve and the slide are square.
One end of the long sleeve, which is far away from the servo motor, is provided with a placing groove for placing an oil seal.
Compared with the prior art, the automatic mounting device can be automatically mounted according to the requirement of main shaft oil seal press mounting. Thereby reducing labor intensity and personnel, and simultaneously ensuring the installation quality. The invention meets the production of high yield and assembly line operation.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the installation of the long sleeve and the oil seal.
The automobile axle driving device comprises an installation rack 1, an axle spindle 2, an oil seal 3, a long sleeve 4, a protective sleeve 5, an installation sleeve 6, a rotating column 7, a telescopic sleeve 8, a transmission rod 9, a pushing seat 10, a belt 11, a servo motor 12 and a connecting sleeve 13.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Therefore, the following detailed description of the embodiments of the present invention, provided in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention, on the basis of which all other embodiments, obtained by a person of ordinary skill in the art without inventive faculty, fall within the scope of the invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different configurations of embodiments of the invention. In order to simplify the disclosure of embodiments of the invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, embodiments of the invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, embodiments of the present invention provide examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
As shown in the attached drawings 1 to 2, the equipment for press mounting of the oil seal 3 of the trailer axle main shaft 2 comprises an installation rack 1, wherein a pushing mechanism is arranged in the installation rack 1, the working end of the pushing mechanism is fixedly connected with the trailer axle main shaft 2 through a power head, a protective sleeve 5 is arranged at the working end of the pushing mechanism and is fixedly connected with the rack, a long sleeve 4 matched with the oil seal 3 for use is arranged at one end, away from the rack, of the protective sleeve 5, the installation rack 1 is an installation supporting part of the whole equipment, the pushing mechanism is arranged in the installation rack 1 and is used for installing the oil seal 3 on the trailer axle main shaft 2 as power, the protective sleeve 5 is a protection part of the power head and ensures that the power head is prevented from cracking and injuring workers when the pushing mechanism drives the power head to push the trailer axle main shaft 2 during working, the long sleeve 4 is connected with the oil seal 3 in a clamping way, the trailer axle main shaft 2 is provided with the oil seal 3 through the long sleeve 4, the specification of long sleeve 4 cooperatees according to the specification size of axle main shaft 2, adapt to the not oil blanket 3 installation of the axle main shaft 2 of equidimension through changing long sleeve 4, it is worth noting that the cross section of the port of long sleeve 4 and 3 installations of oil blanket is the L type, set up the slope at the port, use through slope and the cooperation of installing 3 oil blanket on axle main shaft 2, install behind axle main shaft 2 at oil blanket 3, the variable of self is big, diameter before than the installation is will be big, through the port of L type, avoid installing oil blanket 3 and axle main shaft 2 and install the back and block.
The pushing mechanism comprises a servo motor 12 and a transmission rod 9, the servo motor 12 is connected with the transmission rod 9 through a belt 11, the transmission rod 9 is in threaded connection with a telescopic sleeve 8, the telescopic sleeve 8 is in sliding connection with a pushing seat 10, one end of the telescopic sleeve 8, away from the servo motor 12, is hinged to a power head, the power head is a mounting sleeve 6, the mounting sleeve 6 is connected with an axle spindle 2 through a connecting sleeve 13, the connecting sleeve 13 is fixedly connected with the mounting sleeve 6, the servo motor 12 is fixed in the rack, the power source of the pushing mechanism is provided by the servo motor 12, the servo motor 12 drives the transmission rod 9 to rotate, the one end of the transmission rod 9 is hinged to the mounting rack 1, the outer surface of the transmission rod 9 is in threaded connection with the telescopic sleeve 8, the telescopic sleeve 8 is in clamped connection with the pushing seat 10, when the transmission rod 9 rotates, due to threaded connection, the telescopic sleeve 8 slides in the pushing seat 10, the pushing seat 10 is fixed, the telescopic sleeve 8 cannot transmit in the pushing seat 10, the transmission rod 9, the telescopic sleeve 8 and the pushing seat 10 form a ball screw pair mechanism, the telescopic sleeve 8 performs telescopic motion along the pushing seat 10, the telescopic sleeve 8 drives the power head to perform linear contraction motion, the axle spindle 2 is driven to move through the linear expansion of the telescopic sleeve 8, when the axle spindle 2 is driven to move right by the telescopic sleeve 8, the long sleeve 4 moves left relative to the axle spindle 2, namely, the oil seal 3 on the long sleeve 4 is automatically installed on the axle spindle 2 in a squeezing mode, the servo motor 12 is the prior art, the servo motor 12 can control the speed, the position accuracy is very accurate, and voltage signals can be converted into torque and rotating speed to drive a control object. The servo motor 12 has a rotor speed controlled by an input signal and can respond quickly, is used as an actuator in an automatic control system, has the characteristics of small electromechanical time constant, high linearity and the like, and can convert a received electric signal into an angular displacement or an angular velocity on a motor shaft for output. The servo system is an automatic control system which can lead the output controlled quantity of the position, the direction, the state and the like of an object to follow the random change of an input target (or a given value). The servo is mainly positioned by pulses, basically, the servo motor 12 can rotate the angle corresponding to 1 pulse after receiving 1 pulse, thereby realizing displacement, because the servo motor 12 has the function of sending the pulse, the servo motor 12 can send the corresponding number of pulses every time rotating an angle, thus forming a response with the pulses received by the servo motor 12, or called a closed loop, therefore, the system can know how many pulses are sent to the servo motor 12, and how many pulses are received at the same time, and thus, the rotation of the motor can be accurately controlled, thereby realizing accurate positioning, and reaching 0.001 mm. The dc servo motor 12 is classified into a brush and a brushless motor. The brush motor has the advantages of low cost, simple structure, large starting torque, wide speed regulation range, easy control, maintenance, inconvenient maintenance (carbon brush replacement), electromagnetic interference generation and environmental requirement. Therefore, the brushless motor can be used in common industrial and civil occasions sensitive to cost, and has the advantages of small size, light weight, large output force, quick response, high speed, small inertia, smooth rotation and stable moment. The control is complex, the intellectualization is easy to realize, the electronic commutation mode is flexible, and the square wave commutation or the sine wave commutation can be realized. The motor is free of maintenance, high in efficiency, low in operation temperature, small in electromagnetic radiation, long in service life and applicable to various environments, the alternating current servo motor 12 is also a brushless motor and is divided into a synchronous motor and an asynchronous motor, a synchronous motor is generally used in motion control, the power range of the synchronous motor is large, and large power can be achieved. Large inertia, low top rotational speed, and a rapid decrease with increasing power. Therefore, the servo motor is suitable for being applied to low-speed stable operation, the rotor in the servo motor 12 is a permanent magnet, the U/V/W three-phase electricity controlled by the driver forms an electromagnetic field, the rotor rotates under the action of the magnetic field, meanwhile, an encoder carried by the motor feeds back a signal to the driver, and the driver compares a feedback value with a target value to adjust the rotation angle of the rotor. The accuracy of the servo motor 12 is determined by the accuracy (number of lines) of the encoder, and the ac servo motor 12 and the brushless dc servo motor 12 are functionally different: the AC servo is better because of sine wave control and small torque ripple. The dc servo is a trapezoidal wave. But the direct current servo is simpler and cheaper; the ball screw pair is the prior art, and is named as ball screw pair and ball screw pair. Is composed of a screw rod and a nut which are matched. The most precise and commonly used transmission device in transmission machinery is generally required to transmit the motion generated by power to a final motion part directly or indirectly through other mechanisms when an object moves. Taking an engine as an example, a piston moves up and down in the engine due to combustion of gasoline, and is finally transmitted to wheels through an intermediate mechanism to generate rotary motion. In the world today, devices that can represent machines with various motion mechanisms, none of which can be said to have some form of motion conduction mechanism. The ball screw pair is the most reasonable product for converting rotary motion into linear motion or converting linear motion into rotary motion. The ball screw pair is a screw transmission element which takes a steel ball as a rolling body between a screw and a nut. It can convert rotary motion into linear motion or convert linear motion into rotary motion. Therefore, the ball screw pair is not only a transmission element, but also a mutual conversion element of linear motion and rotary motion, the driving moment is 1/3 compared with the sliding screw pair, and because a plurality of balls are arranged between the screw shaft and the nut of the PRTT ball screw pair to do rolling motion, higher motion efficiency can be obtained. Compared with the conventional sliding screw pair, the driving torque reaches below 1/3, namely, the power required for achieving the same motion result is 1/3 using the sliding screw pair.
The one end of keeping away from servo motor 12 at telescopic sleeve 8 is equipped with rotary column 7, telescopic sleeve 8 is through the articulated installation cover 6 of rotary column 7, and installation cover 6 is connected through rotary column 7 with telescopic sleeve 8, and rotary column 7 is the flexible cover 8 of fixed connection, and the articulated installation cover 6 of rotary column 7 is for conveniently installing 6 installation axle main shafts 2 of cover, is convenient for carry out threaded connection to axle main shaft 2, needs the workman to rotate installation cover 6 when threaded connection, can realize through rotary column 7 that installation cover 6 rotates, the not pivoted mechanism of telescopic sleeve 8.
Be equipped with in the promotion seat 10 with the slide that the cooperation of telescope tube 8 was used, the cross section of telescope tube 8 and slide is square, and the telescope tube 8 is connected through the slide and is promoted seat 10, and it makes telescope tube 8 not self take place to rotate to promote seat 10, and relative movement takes place for telescope tube 8 and transfer line 9, forms the ball screw pair.
One end of the long sleeve 4, which is far away from the servo motor 12, is provided with a placing groove for placing the oil seal 3, the size of the placing groove is slightly larger than the size of the oil seal 3, the placing groove is a placing cavity, and the oil seal 3 is matched with the placing groove for use.
The working process of the invention is as follows: the mounting frame 1 is internally provided with a pushing mechanism, the working end of the pushing mechanism is fixedly connected with an axle spindle 2 through a power head, a bearing at the working end of the pushing mechanism is provided with a protective sleeve 5, the protective sleeve 5 is fixedly connected with the frame, one end of the protective sleeve 5 far away from the frame is provided with a long sleeve 4 matched with an oil seal 3 for use, the mounting frame 1 is a mounting and supporting part of the whole device, the mounting frame 1 is internally provided with the pushing mechanism, the pushing mechanism is used as power to mount the axle spindle 2 with the oil seal 3, the protective sleeve 5 is a protection part of the power head, the situation that workers are prevented from being cracked and injured when the power head drives the axle spindle 2 to push the axle spindle 2 when the pushing mechanism drives the power head to work is ensured, the long sleeve 4 is clamped with the oil seal 3, the axle spindle 2 is mounted with the oil seal 3 through the long sleeve 4, the specifications of the long sleeve 4 are matched according to the specifications of the axle spindle 2, the long sleeve 4 is changed to adapt to the mounting of the oil seals 3 of the axle spindles with different sizes, the end of the telescopic sleeve 8 far away from the servo motor 12 is hinged with the mounting sleeve 6, the mounting sleeve 6 is connected with the axle spindle 2 through a connecting sleeve 13, the connecting sleeve 13 is fixedly connected with the mounting sleeve 6, the servo motor 12 is fixed in the rack, the power source of the pushing mechanism is provided by the servo motor 12, the servo motor 12 drives the transmission rod 9 to rotate, it is worth noting that one end of the transmission rod 9 is hinged on the mounting rack 1, the outer surface of the transmission rod 9 is connected with the telescopic sleeve 8 through threads, the telescopic sleeve 8 is clamped with the pushing seat 10, when the transmission rod 9 rotates, the telescopic sleeve 8 slides in the pushing seat 10 due to threaded connection, the pushing seat 10 is fixed, the telescopic sleeve 8 cannot transmit in the pushing seat 10, the transmission rod 9, the telescopic sleeve 8 and the pushing seat 10 form a ball screw pair mechanism, the telescopic sleeve 8 makes telescopic motion along the pushing seat 10, the telescopic sleeve 8 drives the power head to make linear contraction motion, the axle spindle 2 is driven to move by the linear extension of the telescopic sleeve 8, when the axle spindle 2 is driven by the telescopic sleeve 8 to move to the right, the long sleeve 4 moves to the left relative to the axle spindle 2, namely, an oil seal 3 on the long sleeve 4 is automatically extruded and installed on the axle spindle 2, the installation sleeve 6 is connected with the telescopic sleeve 8 through a rotary column 7, the rotary column 7 is fixedly connected with the telescopic sleeve 8, the rotary column 7 is hinged with the installation sleeve 6 to facilitate the installation of the axle spindle 2 on the installation sleeve 6 and facilitate the threaded connection of the axle spindle 2, a worker is required to rotate the installation sleeve 6 during the threaded connection, the installation sleeve 6 can be rotated through the rotary column 7, the power head fixing protective sleeve 5 is fastened with the installation mechanism through bolts, the linearly-extended power head 5 is a uniform interface with the axle spindle 2, the connecting transition device is formed by a reducing connecting long sleeve 4, the power head and the end part of the axle spindle 2 are covered by the long sleeve 4, the long sleeve 4 is provided with the oil seal 3, the oil seal 3 is contacted with the right end face of the long sleeve 43, and the long sleeve and the oil seal are kept relatively static; the telescopic sleeve 8 moves rightwards under the action of the transmission rod 9, and at the moment, the oil seal 3 moves leftwards relative to the axle spindle 2, so that the oil seal 3 is pressed into the oil seal 3 position of the axle spindle 2.
The invention can be automatically installed according to the requirement of pressing the main shaft oil seal 3. Thereby reducing labor intensity and personnel and ensuring the installation quality. The invention meets the production requirement of high-yield and assembly line operation.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The technical features of the embodiments described above can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, however, as long as there is no contradiction between the combinations of the technical features, the combinations of the technical features should be considered as being within the scope described in the present specification, and when the combinations of the technical features are contradictory or cannot be realized, the combinations of the technical features should be considered as not being present, and the combinations of the technical features are not within the scope of the claims. Also, it will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the spirit of the principles of the invention.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the overall concept of the present invention, and these should also be considered as the protection scope of the present invention.

Claims (5)

1. The utility model provides an equipment to trailer axle main shaft oil blanket pressure equipment, includes the installation frame, its characterized in that: the mounting frame is internally provided with a pushing mechanism, the working end of the pushing mechanism is fixedly connected with an axle main shaft through a power head, a bearing at the working end of the pushing mechanism is provided with a protective sleeve, the protective sleeve is fixedly connected with the frame, and one end, far away from the frame, of the protective sleeve is provided with a long sleeve matched with an oil seal for use.
2. The equipment for oil seal press mounting of the main shaft of the trailer axle according to claim 1, is characterized in that: the pushing mechanism comprises a servo motor and a transmission rod, the servo motor is connected with the transmission rod through a belt, the transmission rod is in threaded connection with a telescopic sleeve, the telescopic sleeve is in sliding connection with a pushing seat, a power head is hinged to one end of the telescopic sleeve, the servo motor is far away from the telescopic sleeve, the power head is an installation sleeve, the installation sleeve is connected with an axle spindle through a connecting sleeve, the connecting sleeve is fixedly connected with the installation sleeve, and the servo motor is fixed inside the rack.
3. The equipment for oil seal press mounting of the main shaft of the trailer axle according to claim 2, is characterized in that: the one end of keeping away from servo motor at the telescope tube is equipped with the rotary column, the telescope tube passes through the articulated installation cover of rotary column.
4. The equipment for oil seal press mounting of the main shaft of the trailer axle according to claim 2, is characterized in that: the push seat is internally provided with a slide matched with the telescopic sleeve for use, and the cross sections of the telescopic sleeve and the slide are square.
5. The equipment for oil seal press mounting of the main shaft of the trailer axle according to claim 1, is characterized in that: one end of the long sleeve, which is far away from the servo motor, is provided with a placing groove for placing an oil seal.
CN202011363062.0A 2020-11-28 2020-11-28 Equipment for press mounting of main shaft oil seal of trailer axle Active CN112476302B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011363062.0A CN112476302B (en) 2020-11-28 2020-11-28 Equipment for press mounting of main shaft oil seal of trailer axle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011363062.0A CN112476302B (en) 2020-11-28 2020-11-28 Equipment for press mounting of main shaft oil seal of trailer axle

Publications (2)

Publication Number Publication Date
CN112476302A CN112476302A (en) 2021-03-12
CN112476302B true CN112476302B (en) 2022-06-21

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3720475B2 (en) * 1996-07-30 2005-11-30 Ntn株式会社 Air operated hub clutch
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
CN203680208U (en) * 2013-12-30 2014-07-02 大众一汽发动机(大连)有限公司 Oil seal sealing press fitting assistive tool for motor shaft-like products
CN203696555U (en) * 2014-01-02 2014-07-09 南京众得利自动化机械有限公司 Numerically-controlled chamfering power head
CN107042486A (en) * 2017-04-14 2017-08-15 南京依维柯汽车有限公司 A kind of commercial car vehicle bridge main shaft oil envelope assembly tooling and its assembly technology
CN106985114A (en) * 2017-06-02 2017-07-28 广西玉柴机器股份有限公司 The assembly tooling of engine oil seal

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