CN110355716A - A kind of belt wheel of automobile engine automation disassembling apparatus - Google Patents
A kind of belt wheel of automobile engine automation disassembling apparatus Download PDFInfo
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- CN110355716A CN110355716A CN201910751494.XA CN201910751494A CN110355716A CN 110355716 A CN110355716 A CN 110355716A CN 201910751494 A CN201910751494 A CN 201910751494A CN 110355716 A CN110355716 A CN 110355716A
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- retention mechanism
- belt pulley
- belt wheel
- motor
- nut
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- 238000009434 installation Methods 0.000 claims description 13
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Classifications
-
- 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
- B25B27/0035—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for motor-vehicles
-
- 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
- B25B27/14—Hand 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a kind of belt wheel of automobile engine to automate disassembling apparatus, is related to a kind of belt wheel of automobile engine detaching equipment comprising generator retention mechanism, belt pulley retention mechanism and pulley nut unscrew mechanism；Generator retention mechanism, for resisting the hanging feet screw hole of automobile current generator to fasten to automobile current generator；Belt pulley retention mechanism, it is opposite with generator retention mechanism position, for being fastened to belt pulley；Pulley nut unscrews mechanism, it is mounted on belt pulley retention mechanism, for unscrewing pulley nut, the beneficial effects of the present invention are: not only being realized by belt pulley retention mechanism to belt pulley fastening is that nut unscrews the condition of providing, and only need feed arrangement counter motion that can remove belt pulley in belt pulley dismantling, and the screw hole that four hanging feet automobile current generators are utilized fastens automobile current generator, and fastening means is convenient and efficient.
Description
Technical field
The present invention relates to a kind of belt wheel of automobile engine detaching equipment, specifically a kind of belt wheel of automobile engine is automatic
Change disassembling apparatus.
Background technique
Automobile current generator is the main power source of automobile, and function is the Xiang Suoyou electrical equipment in normal working of engine
(except starter) power supply, while charging to battery.Automobile current generator is the important component in automobile.
But automobile current generator is generally used as smaller single module, at present for, automobile current generator was being disassembled
There is no single-minded dismantling route in journey, at present in generator dismantling mostly based on artificial, disassembles low efficiency, damage parts are tight
Weight is unfavorable for disassembling the recycling of part, and the dismantling of belt wheel of automobile engine is the necessary process of generator dismantling.
Based on this, present applicant proposes a kind of belt wheel of automobile engine to automate disassembling apparatus.
Summary of the invention
The purpose of the present invention is to provide a kind of belt wheel of automobile engine to automate disassembling apparatus, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of belt wheel of automobile engine automation disassembling apparatus, including generator retention mechanism, belt pulley retention mechanism
Mechanism is unscrewed with pulley nut；Generator retention mechanism, for resisting the hanging feet screw hole of automobile current generator to automobile generating
Machine is fastened；Belt pulley retention mechanism, it is opposite with generator retention mechanism position, for being fastened to belt pulley；Belt
Wheel nut unscrews mechanism, is mounted on belt pulley retention mechanism, for unscrewing pulley nut.
As the present invention further scheme: the generator retention mechanism include be mounted on it is quick on tightening platform
Clamping component and fastening sliding block, the Quick-clamped component for driving fastening sliding block to move towards at automobile current generator position,
Fastening sliding block is used to match the fastening realized to automobile current generator with the hanging feet screw hole of automobile current generator.
As the present invention further scheme: the Quick-clamped component include flexible handle, connecting rod, output shaft and
Firm banking, the flexible handle are hingedly mounted on firm banking, and guide sleeve, activity in guide sleeve are fixed on firm banking
It is combined with output shaft, the both ends of curvilinear connecting rod are hinged with output shaft and flexible handle respectively.
As further scheme of the invention: the fastening sliding block includes gear and slider body, the slider body
Gear is inside installed, the upper and lower position of gear is respectively equipped with the rack gear I and rack gear II engaged, is equipped in slider body for tooth
It is respectively fixed with vertical plate I and vertical plate II on the slideway that I and rack gear II are slided, rack gear I and rack gear II, vertical plate I and perpendicular
Prominent cylindrical body I compatible with hanging feet screw hole and prominent cylindrical body II are respectively fixed on straight panel II.
As further scheme of the invention: lock-screw is fitted on the slider body, for holding out against tooth
The transmission shaft of wheel.
As further scheme of the invention: the belt pulley retention mechanism includes sliding rail placement platform, screw rod and electricity
Machine, the sliding rail placement platform are fixed with sliding rail, and sliding block is sliding combined on sliding rail, and slide plate is fixed on sliding block, is set on slide plate
There is a clamping jaw, screw rod is equipped with by support base I and support base II in the sliding rail placement platform, screw rod is by passing through motor erecting bed
The motor driven rotation being mounted in sliding rail placement platform, screw rod are equipped with it through the nut of screw pair gear transmission, nut with
Sliding block is fixedly connected.
As further scheme of the invention: it includes motor installation slide plate, push that the pulley nut, which unscrews mechanism,
Connecting rod is fixed in sliding block with motor, motor installation slide plate is unscrewed, and sliding block, which is fitted to, is fixed on belt pulley fastening machine
On track on structure, the end of motor installation slide plate is connect with push connecting rod, and it is tight that push connecting rod by pedestal is mounted on belt pulley
Gu on the slide plate of mechanism, unscrewing motor and being mounted on motor installation slide plate, unscrew and be fixed with impeller-hub on the output end of motor, push away
It is equipped on moving axis and unscrews set.
As further scheme of the invention: the set that unscrews includes splined shaft, sleeve, compressed spring and limit sleeve,
Respectively with impeller-hub and sleeve connection, the open-ended place of sleeve is fixed with limit sleeve, sets in sleeve at the both ends of the splined shaft
Having and unscrew axis with what it was slidably matched, unscrews and bearing is installed between axis and sleeve, the one end for unscrewing axis is stretched out out of limit sleeve,
And there is the step of location conflicts between the two, the outer cover for unscrewing axis is equipped with compressed spring, and the both ends of compressed spring are supported respectively
On sleeve and the step for unscrewing axis.
Compared with prior art, the beneficial effects of the present invention are: not only being realized by belt pulley retention mechanism to belt
Wheel fastening is that nut unscrews the condition of providing, and only needs feed arrangement counter motion that can remove skin in belt pulley dismantling
Belt wheel, and the screw hole that four hanging feet automobile current generators are utilized fastens automobile current generator, and fastening means is convenient and efficient；
The elastic potential energy stored using compressed spring when unscrewing cleverly solves the problems, such as that pulley nut does not match；This dress
In addition to needing artificial directly operation when fastening motor in setting, other devices are all to be driven by electricity, and dismantling efficiency is improved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that a kind of belt wheel of automobile engine automates Quick-clamped component in disassembling apparatus.
Fig. 2 is that a kind of belt wheel of automobile engine automates the structural schematic diagram that sliding block is fastened in disassembling apparatus.
Fig. 3 is the structural schematic diagram that a kind of belt wheel of automobile engine automates lock-screw in disassembling apparatus.
Fig. 4 is the structural schematic diagram that a kind of belt wheel of automobile engine automates disassembling apparatus middle belt pulley retention mechanism.
Fig. 5 is the structural schematic diagram that a kind of belt wheel of automobile engine automates screw rod in disassembling apparatus.
Fig. 6 is the structural representation that a kind of belt wheel of automobile engine automates that disassembling apparatus middle belt pulley nut unscrews mechanism
Figure.
Fig. 7 is that a kind of belt wheel of automobile engine automates the structural schematic diagram that set is unscrewed in disassembling apparatus.
Fig. 8 is the structural schematic diagram that a kind of belt wheel of automobile engine automates disassembling apparatus.
In figure: 100- generator retention mechanism, 101- Quick-clamped component, 111- flexible handle, 112- connecting rod, 113-
Guide sleeve, 114- output shaft, 115- firm banking, 102- fastening sliding block, 121- rack gear I, 122- prominent cylindrical body I, 123- are perpendicular
Prominent cylindrical body II, 126- vertical plate II, 127- rack gear II, 128- slider body of straight panel I, 124- gear, 125-, 129- locking
Screw, 103- tightening platform, 200- belt pulley retention mechanism, 201- sliding rail placement platform, 202- sliding block, 203- slide plate, 204-
Sliding rail, 205- support base I, 206- screw rod, 207- link block, 208- nut, 209- support base II, 210- motor erecting bed,
211- motor, 300- pulley nut unscrew mechanism, 301- track, 302- sliding block, 303- motor installation slide plate, the bottom 304-
Seat, 305- push connecting rod, 306- unscrew motor, 307- impeller-hub, 308- and unscrew set, 381- splined shaft, 382- sleeve, 383- rotation
Loose axis, 384- compressed spring, 385- bearing, 386- limit sleeve.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended
The example of device and method being described in detail in claims, some aspects disclosed in the present embodiment are consistent.
Embodiment 1
Please refer to Fig. 1~3, in the embodiment of the present invention, a kind of belt wheel of automobile engine automates disassembling apparatus, including hair
Motor retention mechanism 100, belt pulley retention mechanism 200 and pulley nut unscrew mechanism 300；Generator retention mechanism 100 is used
In resisting the hanging feet screw hole of automobile current generator to fasten to automobile current generator；Belt pulley retention mechanism 200 is tight with generator
Gu 100 position of mechanism is opposite, for being fastened to belt pulley；Pulley nut unscrews mechanism 300, is mounted on belt pulley fastening
In mechanism 200, for unscrewing pulley nut.
The generator retention mechanism 100 includes that the Quick-clamped component 101 being mounted on tightening platform 103 and fastening are slided
Block 102, wherein the Quick-clamped component 101 is for driving fastening sliding block 102 towards movement at automobile current generator position, fastening
Sliding block 102 is used to match the fastening realized to automobile current generator with the hanging feet screw hole of automobile current generator.
Specifically, the Quick-clamped component 101 includes flexible handle 111, connecting rod 112, output shaft 114 and consolidates
Determine pedestal 115, the flexible handle 111 is hingedly mounted on firm banking 115, is fixed with guide sleeve on firm banking 115
113, activity is combined with output shaft 114 in guide sleeve 113, the both ends of curvilinear connecting rod 112 respectively with output shaft 114 and living
Dynamic handle 111 is hinged, in practical application, rotation flexible handle 111, passes through the transmission effect of connecting rod 112, output shaft 114
It can inwardly or outwardly move, and then drive the movement of fastening sliding block 102.
The fastening sliding block 102 includes gear 124 and slider body 128, is equipped with gear in the slider body 128
124, the upper and lower position of gear 124 is respectively equipped with the rack gear I121 and rack gear II127 engaged, certainly, in slider body 128
Equipped with the slideway slided for rack gear I121 and rack gear II127, vertical plate I123 is respectively fixed on rack gear I121 and rack gear II127
With prominent cylindrical body I122 and prominent cylindrical body are respectively fixed on vertical plate II126, vertical plate I123 and vertical plate II126
II125, herein, prominent cylindrical body I122 and prominent cylindrical body II125 are then for being adapted with hanging feet screw hole, for resisting vapour
Vehicle generator, positions it.
Preferably, making it the position for being maintained at setting to position to vertical plate I123 and vertical plate II126
It sets, lock-screw 129 is fitted on the slider body 128, for holding out against the transmission shaft of gear 124.
In practical application, transmission shaft driven gear 124 rotates, so that rack gear I121 and rack gear II127 are moved toward one another,
It is hung after the protrusion cylindrical body I122 and prominent cylindrical body II125 and automobile current generator on vertical plate I123 and vertical plate II126
Foot screw hole center away from it is equal when stop, then rotation lock screw 129, is allowed to hold out against the transmission shaft of gear 124.
Embodiment 2
Please refer to Fig. 4~8, in the embodiment of the present invention, a kind of belt wheel of automobile engine automates disassembling apparatus, the skin
Belt wheel retention mechanism 200 includes sliding rail placement platform 201, screw rod 206 and motor 211, and the sliding rail placement platform 201 is fixed with
Sliding rail 204 is sliding combined with sliding block 202 on sliding rail 204, and slide plate 203 is fixed on sliding block 202, and slide plate 203 is equipped with clamping jaw,
Screw rod 206 is equipped with by support base I205 and support base II209 in the sliding rail placement platform 201, screw rod 206 is by passing through electricity
Machine erecting bed 210 is mounted on the driving rotation of the motor 211 in sliding rail placement platform 201, and screw rod 206, which is equipped with, passes through spiral with it
The nut 208 of auxiliary driving, nut 208 are fixedly connected with sliding block 202.
The pulley nut unscrews mechanism 300 and includes motor installation slide plate 303, push connecting rod 305 and unscrew motor
306, motor installation slide plate 303 is fixed in sliding block 302, and sliding block 302, which is fitted to, is fixed on belt pulley retention mechanism
On track 301 on 200, specifically, track 301 is fixed on the slide plate 203 of belt pulley retention mechanism 200, motor installation
The end of slide plate 303 is connect with push connecting rod 305, and push connecting rod 305 is mounted on belt pulley retention mechanism 200 by pedestal 304
Slide plate 203 on, in fact, push connecting rod 305 can be the devices such as electric pushrod, unscrew motor 306 and be mounted on motor installation
On slide plate 303, unscrews and be fixed with impeller-hub 307 on the output end of motor 306, be equipped on impeller-hub 307 and unscrew set 308.
It is mounted on impeller-hub 307 in practical application, set 308 will be unscrewed, is unscrewed then unscrewing motor 306 and can drive
308 rotation of set, starting push connecting rod 305, pushing motor installation slide plate 303 slides forward, until unscrewing set 308 is nested into skin
Stopping acts when belt wheel nut, and what is then rotated unscrews set and 308 can unscrew pulley nut, realizes the automation of belt pulley
Dismantling.
Since one section of automobile generator rotor axis front end vehicle has screw thread, generator is compressed by screwing pulley nut
Belt pulley, different belt wheel of automobile engine nut size specifications are different.Belt pulley is integrally in cylindrical body and two concave ends, belt
The outer transverse plane for taking turns nut is significantly lower than belt pulley, unscrews the narrow space of pulley nut, general purpose tool is difficult to disassemble, be based on
This, the application devises unscrews set 308 as follows.
Specifically, the set 308 that unscrews includes splined shaft 381, sleeve 382, compressed spring 384 and limit sleeve 386,
The both ends of the splined shaft 381 are connect with impeller-hub 307 and sleeve 382 respectively, and the open-ended place of sleeve 382 is fixed with limit
Set 386, interior be equipped with of sleeve 382 unscrew axis 383 with what it was slidably matched, unscrew and be equipped with bearing between axis 383 and sleeve 382
385, the one end for unscrewing axis 383 is stretched out out of limit sleeve 386, and there is the step of location conflicts between the two, unscrews axis 383
Outer cover is equipped with compressed spring 384, and the both ends of compressed spring 384 are against sleeve 382 respectively and unscrew on the step of axis 383,
In the present embodiment, the axis 383 that unscrews is with regular hexagon recess, and when unscrewing set 308 and being promoted, unscrewing axis 383 can cover
Into pulley nut, it does not coincide with pulley nut even if unscrewing axis 383, the extra amount of feeding can make compressed spring 384
Compression, becomes the elastic potential energy prestored, after unscrewing the starting of motor 306, unscrews axis 383 and starts to rotate, unscrew axis 383 at this time not
Only by twisting resistance, also by compressed spring 384 to the outside axial thrust of axis 383 is unscrewed, due to regular hexagon recess and skin
Belt wheel nut is interference fit, always has that a moment to unscrew axis 383 and pulley nut coincide in rotary course, from
And go on smoothly the dismantling of pulley nut.
It should be strongly noted that not only being realized by belt pulley retention mechanism 200 to belt pulley in the technical program
Fastening is that nut unscrews the condition of providing, and only needs feed arrangement counter motion that can remove belt in belt pulley dismantling
Wheel, and the screw hole that four hanging feet automobile current generators are utilized fastens automobile current generator, and fastening means is convenient and efficient；Benefit
The elastic potential energy stored with compressed spring when unscrewing cleverly solves the problems, such as that pulley nut does not match；The present apparatus
In in addition to needing artificial directly operation when fastening motor, other devices are all to be driven by electricity, and dismantling efficiency is improved.
Those skilled in the art will readily occur to other realities of the disclosure after considering the disclosure at specification and embodiment
Apply scheme.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or suitable
The variation of answering property follows the general principles of this disclosure and including the undocumented common knowledge in the art of the disclosure or used
Use technological means.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are referred to by claim
Out.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by the accompanying claims.
Claims (8)
1. a kind of belt wheel of automobile engine automates disassembling apparatus characterized by comprising
Generator retention mechanism (100), for resisting the hanging feet screw hole of automobile current generator to fasten to automobile current generator；
Belt pulley retention mechanism (200), it is opposite with generator retention mechanism (100) position, for being fastened to belt pulley；
Pulley nut unscrews mechanism (300), is mounted on belt pulley retention mechanism (200), for unscrewing pulley nut.
2. a kind of belt wheel of automobile engine according to claim 1 automates disassembling apparatus, which is characterized in that the hair
Motor retention mechanism (100) includes:
Quick-clamped component (101) is mounted on tightening platform (103), for driving fastening sliding block (102) towards automobile generating
The movement of the seat in the plane place of setting；
It fastens sliding block (102), is mounted on tightening platform (103), matches realization for the hanging feet screw hole with automobile current generator
Fastening to automobile current generator.
3. a kind of belt wheel of automobile engine according to claim 2 automates disassembling apparatus, which is characterized in that described fast
Fast clamping component (101) includes flexible handle (111), connecting rod (112), output shaft (114) and firm banking (115), described
Flexible handle (111) is hingedly mounted on firm banking (115), is fixed on firm banking (115) guide sleeve (113), guiding
Set (113) interior activity is combined with output shaft (114), the both ends of curvilinear connecting rod (112) respectively with output shaft (114) and living
Dynamic handle (111) are hinged.
4. a kind of belt wheel of automobile engine according to claim 2 automates disassembling apparatus, which is characterized in that described tight
Gu sliding block (102) includes gear (124) and slider body (128), gear (124), tooth are installed in the slider body (128)
The upper and lower position of wheel (124) is respectively equipped with the rack gear I (121) and rack gear II (127) engaged, sets in slider body (128)
There is the slideway slided for rack gear I (121) and rack gear II (127), is respectively fixed with vertically on rack gear I (121) and rack gear II (127)
It is respectively fixed on plate I (123) and vertical plate II (126), vertical plate I (123) and vertical plate II (126) and is mutually fitted with hanging feet screw hole
The protrusion cylindrical body I (122) and protrusion cylindrical body II (125) matched.
5. a kind of belt wheel of automobile engine according to claim 4 automates disassembling apparatus, which is characterized in that the cunning
Lock-screw (129) are fitted on block body (128), for holding out against the transmission shaft of gear (124).
6. a kind of belt wheel of automobile engine automation disassembling apparatus, special described according to claim 1 or 2 or 3 or 4 or 5
Sign is, the belt pulley retention mechanism (200) includes sliding rail placement platform (201), screw rod (206) and motor (211), described
Sliding rail placement platform (201) is fixed with sliding rail (204), is sliding combined on sliding rail (204) sliding block (202), solid on sliding block (202)
Surely have slide plate (203), slide plate (203) is equipped with clamping jaw, passes through support base I (205) and branch in the sliding rail placement platform (201)
Support seat II (209) is equipped with screw rod (206), and screw rod (206) is by being mounted on sliding rail placement platform by motor erecting bed (210)
(201) motor (211) in drives rotation, and screw rod (206), which is equipped with, passes through the nut (208) of screw pair gear transmission, nut with it
(208) it is fixedly connected with sliding block (202).
7. a kind of belt wheel of automobile engine according to claim 6 automates disassembling apparatus, which is characterized in that the skin
Belt wheel nut unscrews mechanism (300) and includes motor installation slide plate (303), push connecting rod (305) and unscrew motor (306), motor
Installation slide plate (303) is fixed on sliding block (302), and sliding block (302), which is fitted to, is fixed on belt pulley retention mechanism
(200) on the track (301) on, the end of motor installation slide plate (303) is connect with push connecting rod (305), is pushed connecting rod (305)
It is mounted on the slide plate (203) of belt pulley retention mechanism (200) by pedestal (304), unscrews motor (306) and be mounted on motor peace
It fills on slide plate (303), unscrews and be fixed on the output end of motor (306) impeller-hub (307), impeller-hub is equipped with rotation on (307)
Pine set (308).
8. a kind of belt wheel of automobile engine according to claim 7 automates disassembling apparatus, which is characterized in that the rotation
Pine set (308) includes splined shaft (381), sleeve (382), compressed spring (384) and limit sleeve (386), the splined shaft (381)
Both ends connect respectively with impeller-hub (307) and sleeve (382), the open-ended place of sleeve (382) is fixed with limit sleeve
(386), it is equipped in sleeve (382) and unscrews axis (383) with what it was slidably matched, unscrewed and installed between axis (383) and sleeve (382)
There are bearing (385), the one end for unscrewing axis (383) is stretched out out of limit sleeve (386), and there is the platform of location conflicts between the two
Rank, the outer cover for unscrewing axis (383) are equipped with compressed spring (384), and the both ends of compressed spring (384) are against sleeve (382) respectively
With unscrew axis (383) step on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910751494.XA CN110355716B (en) | 2019-08-15 | 2019-08-15 | Automatic dismounting device for belt pulley of automobile generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910751494.XA CN110355716B (en) | 2019-08-15 | 2019-08-15 | Automatic dismounting device for belt pulley of automobile generator |
Publications (2)
| Publication Number | Publication Date |
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| CN110355716A true CN110355716A (en) | 2019-10-22 |
| CN110355716B CN110355716B (en) | 2024-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910751494.XA Active CN110355716B (en) | 2019-08-15 | 2019-08-15 | Automatic dismounting device for belt pulley of automobile generator |
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| CN (1) | CN110355716B (en) |
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| CN112828799A (en) * | 2020-12-08 | 2021-05-25 | 中国石油天然气股份有限公司 | Dismounting device of bearing support |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112828799A (en) * | 2020-12-08 | 2021-05-25 | 中国石油天然气股份有限公司 | Dismounting device of bearing support |
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| Publication number | Publication date |
|---|---|
| CN110355716B (en) | 2024-04-19 |
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