CN107984193B - Shaft-mounted speed reducer press-mounting tool - Google Patents
Shaft-mounted speed reducer press-mounting tool Download PDFInfo
- Publication number
- CN107984193B CN107984193B CN201711383374.6A CN201711383374A CN107984193B CN 107984193 B CN107984193 B CN 107984193B CN 201711383374 A CN201711383374 A CN 201711383374A CN 107984193 B CN107984193 B CN 107984193B
- Authority
- CN
- China
- Prior art keywords
- shaft
- speed reducer
- ring
- press
- gland
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 72
- 210000004907 gland Anatomy 0.000 claims abstract description 39
- 238000005096 rolling process Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical group C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention provides a press-fitting tool of a shaft-fitting type speed reducer, which comprises a working machine and the shaft-fitting type speed reducer connected to the working machine, wherein a connecting screw is arranged on the speed reducer, one end of the connecting screw is provided with a press-fitting assembly body, and the press-fitting assembly body mainly comprises a hollow annular or circular structure formed by six parts of a base, a thrust ball bearing, a gland, an elastic retainer ring for a hole, a gasket and a nut which are sequentially arranged; the other end of the connecting screw is arranged in the shaft sleeve of the shaft-mounted speed reducer, and the end head of the connecting screw is connected with the power input shaft of the working machine. The invention is reasonably designed according to the structural characteristics of the shaft-mounted speed reducer, so that the shaft-mounted speed reducer is suitable for press-mounting work of various shaft-mounted speed reducers, and is simple to use and convenient to carry. The invention can greatly reduce the friction force among components in the press fitting process, improve the installation efficiency of the speed reducer, reduce the labor intensity, ensure that the speed reducer is uniformly stressed and avoid damaging the internal parts of the speed reducer.
Description
Technical Field
The invention belongs to the technical field of special mechanical press-fitting tools, and particularly relates to a press-fitting tool for a shaft-fitting speed reducer.
Background
The speed reducer is a speed reducing transmission device between a prime mover (motor) and a working machine, has the function of matching the rotating speed and the transmission torque between the prime mover and the working machine or an executing mechanism, is a relatively precise mechanical device, and aims to reduce the rotating speed and increase the torque, and is widely applied to modern machines. The shaft-mounted speed reducer adopts a mounting mode of being directly sleeved on a power input shaft of the working machine, and is suitable for the situation of directly driving the working machine (such as a belt conveyor and the like) to operate.
Because the shaft sleeve of the shaft-mounted speed reducer is in interference fit with the power input shaft of the working machine, the following three methods are generally adopted when the shaft-mounted speed reducer is installed: firstly, the speed reducer is knocked into the shaft by using the hammer and the copper rod, and the method can cause damage to internal parts and sealing rings of the speed reducer due to external load generated by knocking, so that the transmission precision is reduced, even the shaft is broken when the transmission precision is severe, and the method is labor-consuming and time-consuming and is difficult to install. Secondly, the speed reducer is pressed by hydraulic or electric pressing equipment, the method is high in efficiency and labor-saving, but the pressing equipment is complex in structure, large in size, inconvenient to carry and use and incapable of being used on site of the working machine. Thirdly, the speed reducer is pressed into the shaft by using the internal thread hole at the shaft end of the working machine and the bolts and the nuts, when the speed reducer is pressed into the shaft, a press-fit cushion block is usually required to be added between the shaft sleeve of the speed reducer and the nuts, the nuts are manually rotated during press-fit, the cushion block is pressed and pushes the speed reducer to move towards the input shaft, the friction force between the nuts and the cushion block is continuously increased along with gradual installation of the speed reducer, and an operator needs to exert great effort to press the speed reducer into the shaft, so that the operation efficiency is low and the labor intensity is high.
Disclosure of Invention
The invention aims to solve the technical problem of providing a special tool for press mounting of a shaft-mounted speed reducer, which can ensure the mounting efficiency of the shaft-mounted speed reducer, reduce the labor intensity in the mounting process and avoid unnecessary damage to internal parts of the speed reducer in the mounting process.
The technical scheme adopted by the invention is as follows: the shaft-mounted speed reducer press-mounting tool comprises a working machine and a shaft-mounted speed reducer connected to the working machine, wherein a connecting screw (1) is arranged on the speed reducer, one end of the connecting screw (1) is provided with a press-mounting assembly body, the press-mounting assembly body mainly comprises a hollow annular or circular structure formed by six parts of a base (2), a thrust ball bearing (3), a gland (4), a hole circlip (5), a gasket (6) and a nut (7) which are sequentially arranged, the base (2) is in clearance fit with the gland (4), a cavity is formed in the position where the base (2) is matched with the gland (4), the thrust ball bearing (3) is arranged in the cavity, the hole circlip (5) is also clamped on the base (2), one end of the gland (4) is provided with the gasket (6), and one end of the gasket (6) is provided with the nut (7); the other end of the connecting screw rod (1) is arranged in a shaft sleeve (8) of the shaft-mounted speed reducer, and the end head of the connecting screw rod (1) is connected with a power input shaft (9) of the working machine.
Further, the connecting screw (1) is connected with an internal threaded hole on the end face of the power input shaft (9) of the working machine.
Specifically, the base (2) comprises an inner ring (21), a middle ring (22) and an outer ring (23) which are integrally formed and sequentially arranged, wherein the heights of the inner ring (21), the middle ring (22) and the outer ring (23) are sequentially increased from inside to outside, and a groove (231) is further formed in the inner side of the outer ring (23); the thrust ball bearing (3) comprises a seat ring (31), rolling bodies (32) and a shaft collar (33), wherein the rolling bodies (32) are arranged between the seat ring (31) and the shaft collar (33); the gland (4) comprises a first circular ring (41) formed integrally, an annular groove (42) arranged at the bottom of the first circular ring (41) and a second circular ring (43) arranged on the first circular ring (41), wherein the diameter of the second circular ring (43) is smaller than that of the first circular ring (41).
Specifically, the clearance fit is personally submitted to the bottom of ring (22) on base (2) and first ring (41) on gland (4), the cavity is formed by ring channel (42) and inner ring (21) cooperation, seat circle (31) of thrust ball bearing (3) are installed on inner ring (21) of base (2), and in ring channel (42) of gland (4) are installed in pedestal ring (33) of thrust ball bearing (3), circlip (5) for the hole sets up in recess (231) of base (2).
Further, the rolling bodies (32), the shaft rings (33), the gland (4), the gaskets (6) and the nuts (7) rotate along with the connecting screw (1).
Further, the bottom end surface of the base (2) is tightly attached to the reducer shaft sleeve (8).
The working principle of the invention is as follows: before the shaft-mounted speed reducer press-mounting tool works, the shaft-mounted speed reducer press-mounting tool is firstly mounted for standby, when the shaft-mounted speed reducer is mounted, one end of a connecting screw rod (1) in the press-mounting tool is screwed into a threaded hole in the center of the end face of a power input shaft (9) of the power of the work machine, then a shaft sleeve (8) of the speed reducer is sleeved outside the connecting screw rod (1), and an assembled press-mounting assembly main body penetrates through the other end of the connecting screw rod (1), so that the bottom end face of a base (2) in the press-mounting assembly main body is tightly attached to the end face of the shaft sleeve (8) of the speed reducer. When the speed reducer is in operation, the nut (7) is gradually screwed, when the nut (7) is screwed to be tightly attached to the gasket (6), the position between the speed reducer shaft sleeve (8) and the working machine input shaft (9) is adjusted, so that a key groove of the speed reducer shaft sleeve (8) is aligned with a key on the working machine input shaft (9), the nut (7) is continuously screwed until the speed reducer is completely pressed into the working machine input shaft (9), and then the speed reducer installation work is completed.
The beneficial effects of the invention are as follows: according to the press fitting tool, the base and the gland are connected through the thrust ball bearing, friction between press fitting components is rolling friction, and friction force between the press fitting components is greatly reduced; the external force applied during press fitting is mostly used for overcoming the friction force between the shaft sleeve of the speed reducer and the power input shaft of the working machine to do work, so that the press fitting tool can be used for rapidly and conveniently press fitting the shaft-mounted speed reducer, the installation efficiency of the speed reducer can be improved, the labor intensity is reduced, and unnecessary damage to internal parts such as a speed reducer shaft, a shaft sleeve and the like in the installation process is avoided. Meanwhile, the invention has simple structure, is convenient to carry and use, and is suitable for the installation of the shaft-mounted speed reducer. Is suitable for press mounting of various shaft-mounted speed reducers or sleeved parts.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the base of the component part of the present invention;
FIG. 3 is a schematic view of the thrust ball bearing of the component parts of the present invention;
FIG. 4 is a schematic structural view of a gland of the constituent elements of the present invention;
FIG. 5 is a schematic view of the circlip for holes of the component parts of the present invention;
FIG. 6 is a state diagram of the present invention;
Wherein, the mark in the figure: 1-connecting screw rod, 2-base, 21-inner ring, 22-middle ring, 23-outer ring, 231-groove, 3-thrust ball bearing, 31-seat ring, 32-rolling body, 33-shaft ring, 4-gland, 41-first circular ring, 42-annular groove, 43-second circular ring, 5-hole elastic retainer ring, 6-gasket, 7-nut, 8-speed reducer shaft sleeve and 9-power input shaft of the working machine.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the accompanying drawings and the detailed description.
As shown in the figure, the press-fitting tool of the shaft-fitting speed reducer comprises a working machine and the shaft-fitting speed reducer connected to the working machine, wherein a connecting screw 1 is arranged on the speed reducer, one end of the connecting screw 1 is provided with a press-fitting assembly body, the press-fitting assembly body mainly comprises a hollow annular or circular structure formed by six parts of a base 2, a thrust ball bearing 3, a gland 4, a hole circlip 5, a gasket 6 and a nut 7 which are sequentially arranged, wherein the base 2 and the gland 4 are in clearance fit, a cavity is formed at the joint of the base 2 and the gland 4, the thrust ball bearing 3 is arranged in the cavity, the hole circlip 5 is also clamped on the base 2, one end of the gland 4 is provided with the gasket 6, and one end of the gasket 6 is provided with the nut 7; the other end of the connecting screw 1 is arranged in a shaft sleeve 8 of the shaft-mounted speed reducer, and the end head of the connecting screw 1 is connected with a power input shaft 9 of the working machine.
Further, the connecting screw 1 is connected with an internal threaded hole on the end face of the power input shaft 9 of the working machine.
Specifically, the base 2 includes an inner ring 21, a middle ring 22 and an outer ring 23 which are integrally formed and sequentially arranged, wherein the heights of the inner ring 21, the middle ring 22 and the outer ring 23 sequentially increase from inside to outside, and a groove 231 is further formed in the inner side of the outer ring 23; the thrust ball bearing 3 includes a race 31, rolling bodies 32, and a shaft collar 33, wherein the rolling bodies 32 are disposed between the race 31 and the shaft collar 33; the gland 4 comprises a first annular ring 41 integrally formed, an annular groove 42 arranged at the bottom of the first annular ring 41, and a second annular ring 43 arranged on the first annular ring 41, wherein the diameter of the second annular ring 43 is smaller than that of the first annular ring 41.
Specifically, the middle ring 22 on the base 2 and the bottom end of the first circular ring 41 on the gland 4 are in clearance fit, the cavity is formed by matching the annular groove 42 with the inner ring 21, the seat ring 31 of the thrust ball bearing 3 is installed on the inner ring 21 of the base 2, the shaft ring 33 of the thrust ball bearing 3 is installed in the annular groove 42 of the gland 4, and the circlip 5 for holes is arranged in the groove 231 on the base 2.
Further, the rolling bodies 32, the shaft collar 33, the gland 4, the washer 6 and the nut 7 all rotate along with the connecting screw 1.
Further, the bottom end surface of the base 2 is tightly attached to the reducer shaft sleeve 8.
In operation, as shown in fig. 1 and 6, firstly, the race 31 of the thrust ball bearing 3 is installed on the inner ring 21 of the base 2, the shaft collar 33 of the thrust ball bearing 3 is installed in the annular groove 42 of the gland 4, the race 31 and the shaft collar 33 are connected with the rolling bodies 32 to be installed in the cavity formed by matching between the middle ring 22 on the base 2 and the bottom end surface of the first annular ring 41 on the gland 4, then the gland 4 with the shaft collar 33 is installed on the middle ring 22 on the base 2 in a clearance fit mode, the bottom end surface of the gland 4 is separated from the end surface of the base 2 by the rolling bodies 32 of the thrust ball bearing 2, the hole circlip 5 is arranged in the groove 231 of the base 2, and the hole circlip 5 is clamped on the top end surface of the first annular ring 41 on the gland 4, namely the hole circlip 5 axially positions the gland 4, so that the gland 4 cannot be separated from the base 2. Then the connecting screw rod 1 is screwed into an internal threaded hole on the shaft end surface of the power input shaft 9 of the working machine, and the shaft-mounted speed reducer is sleeved outside the connecting screw rod 1 through a speed reducer shaft sleeve 8; then the assembled base 2, thrust ball bearing 3 and gland 4 are assembled on the connecting screw 1 through the guide holes of the base 2 and gland 4, the bottom end surface of the base 2 is tightly attached to the end surface of the speed reducer shaft sleeve 8, a gasket 6 is assembled on the connecting screw 1 and screwed into the nut 7, when the nut 7 and the gasket 6 are tightly attached to the gland 4, the position between the speed reducer shaft sleeve 8 and the working machine input shaft 9 is adjusted, the key groove of the speed reducer shaft sleeve 8 is aligned with the key of the working machine input shaft 9, then the nut 7 is screwed by using a spanner to press the speed reducer, and in the process of screwing the nut 7, the gasket 6, the gland 4, the shaft ring 33 of the thrust ball bearing 3 and the rolling body 32 rotate together with the nut 7, and the seat ring 31 of the thrust bearing 3 and the base 2 do not rotate; the pressure generated by the rotating nut 7 is transmitted to the rolling elements 32 through the gland 4 and the shaft collar 33 of the thrust bearing 3, and then the rolling elements 32 uniformly transmit the pressure to the race 31 and the base 2 of the thrust bearing 3, so that the race 31 and the base 2 axially move. The tightening of the nut 7 is continued until the speed reducer is fully pressed into the working machine input shaft 9, i.e. the speed reducer is mounted in place.
The shaft-mounted speed reducer press-fitting tool provided by the invention is described in detail above, and the principles of the invention are described herein, so that the description of the working principles is only used for helping to understand the core idea of the invention. It should be noted that it will be apparent to those skilled in the art that the present invention may be modified and adapted without departing from the principles of the present invention, and such modifications and adaptations are intended to be within the scope of the appended claims.
Claims (3)
1. The utility model provides a axle dress formula speed reducer press-fit tool, this press-fit tool includes the work machine and connects the axle dress formula speed reducer on the work machine, its characterized in that: the speed reducer is provided with a connecting screw (1), one end of the connecting screw (1) is provided with a press-fit assembly body, the press-fit assembly body mainly comprises a base (2), a thrust ball bearing (3), a gland (4), a circlip (5) for holes, a gasket (6) and a nut (7) which are sequentially arranged, the whole body is of a hollow annular or circular structure, the base (2) and the gland (4) are in clearance fit, a cavity is formed at the matched position of the base (2) and the gland (4), the thrust ball bearing (3) is arranged in the cavity, the hole circlip (5) is also clamped on the base (2), the gasket (6) is arranged at one end of the gland (4), and the nut (7) is arranged at one end of the gasket (6); the other end of the connecting screw (1) is arranged in a shaft sleeve (8) of the shaft-mounted speed reducer, the end head of the connecting screw (1) is connected with a power input shaft (9) of the working machine, and the connecting screw (1) is connected with an internal threaded hole on the end face of the power input shaft (9) of the working machine;
The base (2) comprises an inner ring (21), a middle ring (22) and an outer ring (23) which are integrally formed and sequentially arranged, wherein the heights of the inner ring (21), the middle ring (22) and the outer ring (23) are sequentially increased from inside to outside, and a groove (231) is further formed in the inner side of the outer ring (23); the thrust ball bearing (3) comprises a seat ring (31), rolling bodies (32) and a shaft collar (33), wherein the rolling bodies (32) are arranged between the seat ring (31) and the shaft collar (33); the gland (4) comprises a first circular ring (41) formed integrally, an annular groove (42) arranged at the bottom of the first circular ring (41) and a second circular ring (43) arranged on the first circular ring (41), wherein the diameter of the second circular ring (43) is smaller than that of the first circular ring (41);
The novel thrust ball bearing is characterized in that the middle ring (22) on the base (2) and the bottom end of the first circular ring (41) on the gland (4) are in clearance fit, the cavity is formed by matching an annular groove (42) with the inner ring (21), the seat ring (31) of the thrust ball bearing (3) is arranged on the inner ring (21) of the base (2), the shaft collar (33) of the thrust ball bearing (3) is arranged in the annular groove (42) of the gland (4), and the elastic retainer ring (5) for holes is arranged in the groove (231) of the base (2).
2. The shaft-mounted speed reducer press-fitting tool according to claim 1, wherein: the rolling bodies (32), the shaft rings (33), the gland (4), the gaskets (6) and the nuts (7) rotate along with the connecting screw (1).
3. The shaft-mounted speed reducer press-fitting tool according to claim 1, wherein: the bottom end surface of the base (2) is tightly attached to the reducer shaft sleeve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711383374.6A CN107984193B (en) | 2017-12-20 | 2017-12-20 | Shaft-mounted speed reducer press-mounting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711383374.6A CN107984193B (en) | 2017-12-20 | 2017-12-20 | Shaft-mounted speed reducer press-mounting tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107984193A CN107984193A (en) | 2018-05-04 |
| CN107984193B true CN107984193B (en) | 2024-05-24 |
Family
ID=62039204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711383374.6A Active CN107984193B (en) | 2017-12-20 | 2017-12-20 | Shaft-mounted speed reducer press-mounting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107984193B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985641A (en) * | 2019-12-24 | 2020-04-10 | 陕西法士特汽车传动集团有限责任公司 | Mounting mechanism and method for output flange shaft of speed reducer |
| CN114986134A (en) * | 2022-07-01 | 2022-09-02 | 中国科学院理化技术研究所 | Gas bearing installation equipment and installation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814641A (en) * | 2012-09-13 | 2012-12-12 | 莱芜钢铁集团有限公司 | Assembling device and assembling method of reduction gear and working shaft |
| DE102012202365A1 (en) * | 2012-02-16 | 2013-08-22 | Schaeffler Technologies AG & Co. KG | Mounting arrangement for pressing rolling bearing inner ring on conical bearing seat surface of shaft, has push plate engaged with inner ring, and bonnet wing nut whose ball screw thread shoots share same axis of rotation with wing nut |
| CN205219011U (en) * | 2015-12-02 | 2016-05-11 | 天合石油集团汇丰石油装备股份有限公司 | A push -and -pull rotary device that is used for big lead angle screw rod drilling tool of dismouting |
| CN207788177U (en) * | 2017-12-20 | 2018-08-31 | 红塔烟草(集团)有限责任公司 | A kind of shaft assembled speed reducer press mounting tool |
-
2017
- 2017-12-20 CN CN201711383374.6A patent/CN107984193B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012202365A1 (en) * | 2012-02-16 | 2013-08-22 | Schaeffler Technologies AG & Co. KG | Mounting arrangement for pressing rolling bearing inner ring on conical bearing seat surface of shaft, has push plate engaged with inner ring, and bonnet wing nut whose ball screw thread shoots share same axis of rotation with wing nut |
| CN102814641A (en) * | 2012-09-13 | 2012-12-12 | 莱芜钢铁集团有限公司 | Assembling device and assembling method of reduction gear and working shaft |
| CN205219011U (en) * | 2015-12-02 | 2016-05-11 | 天合石油集团汇丰石油装备股份有限公司 | A push -and -pull rotary device that is used for big lead angle screw rod drilling tool of dismouting |
| CN207788177U (en) * | 2017-12-20 | 2018-08-31 | 红塔烟草(集团)有限责任公司 | A kind of shaft assembled speed reducer press mounting tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107984193A (en) | 2018-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103447804A (en) | Pressure head device capable of automatically correcting center positioning deviation | |
| CN107984193B (en) | Shaft-mounted speed reducer press-mounting tool | |
| CN104033502A (en) | Hydraulic expansion sleeve | |
| CN202964557U (en) | Aircraft bearing installation compression device | |
| CN203526895U (en) | Pressure head device for automatically correcting center positioning deviation | |
| CN104696377A (en) | Axle hole expanding connection device | |
| CN204565730U (en) | Toothholder bores cross hole fixture | |
| CN207616496U (en) | A kind of diagonal tools for bolts ' pretension device of adjustable pitch formula | |
| CN203664693U (en) | Lathe spindle | |
| CN207788177U (en) | A kind of shaft assembled speed reducer press mounting tool | |
| CN206643834U (en) | Power take-off mechanism when one kind tightens bolt suitable for robot | |
| CN202203294U (en) | Quick-change type ball-cage universal coupling | |
| CN201705820U (en) | Expansion sleeve for delivering torque between hole and shaft | |
| CN210360166U (en) | Bearing inner race axial withdraws from dismantlement frock | |
| CN205096828U (en) | Gas turbine rotor attachment bolt preloading device | |
| CN204572821U (en) | A kind of hole axle swelling connection set | |
| CN204524442U (en) | Shaft forgings worm abrasion wheel gear grinding tooling | |
| CN210451690U (en) | Tool for assembling wet friction clutch | |
| CN204053886U (en) | Press-fit universal joint fixture | |
| CN214162003U (en) | Rectangular shaft sleeve type speed reducer mounting tool | |
| CN202129606U (en) | Multi-station connecting shaft assembling device | |
| CN205587923U (en) | Automatic assembly machine of special bearing bush | |
| CN210060967U (en) | Main shaft drawing tool of large wind power locking disc test bed | |
| CN216326826U (en) | Improved generation tapered roller bearing inner race is mandrel for super smart lathe | |
| CN220769845U (en) | Combined locking structure of piston |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |