CN102078883A - Hydraulic cylinder lug ring pin shaft locking device - Google Patents
Hydraulic cylinder lug ring pin shaft locking device Download PDFInfo
- Publication number
- CN102078883A CN102078883A CN 201010548297 CN201010548297A CN102078883A CN 102078883 A CN102078883 A CN 102078883A CN 201010548297 CN201010548297 CN 201010548297 CN 201010548297 A CN201010548297 A CN 201010548297A CN 102078883 A CN102078883 A CN 102078883A
- Authority
- CN
- China
- Prior art keywords
- hydraulic cylinder
- cylinder earrings
- clamp
- positioning pin
- spring spool
- 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.)
- Pending
Links
Images
Landscapes
- Clamps And Clips (AREA)
Abstract
The invention provides a hydraulic cylinder lug ring pin shaft locking device, which comprises a hydraulic cylinder lug ring and a pin shaft, wherein the pin shaft passes through the hydraulic cylinder lug ring. The hydraulic cylinder lug ring pin shaft locking device further comprises a clamping plate, wherein the clamping plate is provided with a clamping part; one end of the clamping plate is a fixed end which can be rotatably fixed at one side of the hydraulic cylinder lug ring, while the other end of the clamping plate is a mobile end capable of rotating by taking the fixed end as a center; the mobile end is provided with an elastic positioning piece; one end of the pin shaft is provided with a ring groove, and the width of the groove is matched with that the clamping part of the clamping plate; and the clamping plate can be clamped in the groove of the pin shaft. The hydraulic cylinder lug ring pin shaft locking device is easy to replace the hydraulic cylinder lug ring pin shaft, saves the time of replacing the pin shaft, increases the labor efficiency and reduces the labor intensity.
Description
Technical field
The present invention relates to a kind of locking device, especially a kind of hydraulic cylinder earrings lock clasp device.
Background technology
In the operation of rolling of milling train, need reach the rolling steel-plate shape and the control of convexity by the shape of control roll, to this, mainly be to come control panel shape by the roller technology in the past, but because the roller technology is limited to the control range of the strip crown of plate shape, usually can only be about 0.1mm, it is not high to roll out the steel plate board quality, can't satisfy the requirement of economic development.For addressing this problem, people have developed the roll shifting technology, promptly make working roll axially carry out play by control, thereby reach control panel shape in the operation of rolling, improve the purpose of strip shape quality.
Since the frequent play of working shaft, and quickened the wearing and tearing of working roll, for the quality that guarantees steel plate needs frequent replacing working roll.And present known milling train roll shifting mechanism mainly to be hydraulic cylinder pass through the earrings bearing pin connects roll and drive the roll play, this just makes when changing working roll, needs frequent plug to connect the bearing pin of hydraulic cylinder earrings and working roll spindle nose.As shown in Figure 1, 2, this known configurations is by bearing pin 6 is penetrated in the through hole of hydraulic cylinder earrings 5 and working roll spindle nose, and fixing by nut 7.When needs are changed working roll, then unscrew nut 7 by instruments such as spanners, unload lower bearing pin 6, hydraulic cylinder earrings 1 and working roll are thrown off, operate cumbersome like this.
For this reason, No. the 200820110672.8th, Chinese patent discloses a kind of " operation roll of mill roll shifting device ", and this device comprises two roll shifting hydraulic cylinders, respectively push rod and the rotating mechanism that connects with two roll shifting hydraulic cylinders; Be set with joint on the cylinder bar of roll shifting hydraulic cylinder, at the cylinder boom end cylinder knock-off joint be installed, push rod connects with joint.This device makes the push rod rotation with T shape head by rotating mechanism, and push rod can be linked with working roll or throw off as required.Though this device has improved the speed of being connected of hydraulic cylinder and working roll or disengagement, reduced the roll changing time of working roll, but needed to increase a rotating mechanism, thereby made roll shifting mechanism become comparatively complicated, not only increase the volume of equipment, also increased the manufacturing and the maintenance cost of equipment simultaneously.
This case inventor is according to the experience and knowledge of being engaged in this area work for many years, defective for the existence that overcomes above-mentioned known technology, through arduous research and development, develop other aid that neither needs of the present invention and carry out dismounting hydraulic cylinder earrings bearing pin, can satisfy the hydraulic cylinder earrings lock clasp device that the structure of existing equipment is transformed again.
Summary of the invention
The purpose of this invention is to provide a kind of hydraulic cylinder earrings lock clasp device, it not only is easy to the replacing to hydraulic cylinder earrings bearing pin, and has saved the time of changing bearing pin, has improved efficiency, and has reduced labour intensity.
For this reason, the present invention proposes a kind of hydraulic cylinder earrings lock clasp device, comprise: the hydraulic cylinder earrings, the bearing pin that runs through described hydraulic cylinder earrings, wherein, described hydraulic cylinder earrings lock clasp device further also has a clamp, described clamp is provided with a holding section, one end of described clamp is a stiff end, described stiff end can be rotatably fixed to a side of described hydraulic cylinder earrings, the other end is a movable end, and described movable end can be that the center is rotated with described stiff end, has a flexible positioning piece on this movable end; One end of described bearing pin is provided with a ring groove, and the width of described groove matches with the holding section of described clamp, and described clamp can be sticked in the groove of described bearing pin.
Aforesaid hydraulic cylinder earrings lock clasp device, wherein, the stiff end of described clamp has first connecting hole, is provided with lining in this first connecting hole, and a bolt passes described lining fixedlys connected with described hydraulic cylinder earrings.
Aforesaid hydraulic cylinder earrings lock clasp device, wherein, described flexible positioning piece is can be along the flexible elastic positioning pin of described bearing pin axial elasticity.
Aforesaid hydraulic cylinder earrings lock clasp device, wherein, the movable end of described clamp has second connecting hole, and described elastic positioning pin is arranged in this second connecting hole.
Aforesaid hydraulic cylinder earrings lock clasp device, wherein, described elastic positioning pin has: spring spool, described spring spool are fixed in described second connecting hole; Positioning pin rod is set in the described spring spool, and an end is for can protrude out the positioning end that described spring spool is resisted against described hydraulic cylinder earrings, and the other end is the control end that protrudes out described spring spool, and described positioning pin rod is provided with flange; Spring housing is located on the described positioning pin rod, and is contained in the described spring spool, and an end of described spring is resisted against described spring spool, and the other end is resisted against the flange of described positioning pin rod.
Aforesaid hydraulic cylinder earrings lock clasp device, wherein, the control end of described positioning pin rod is provided with taper knob.
Aforesaid hydraulic cylinder earrings lock clasp device, wherein, be provided with on the described hydraulic cylinder earrings of described clamp one side and have at least two locating holes, these two locating holes equate apart from the distance of the stiff end of described clamps, and described flexible positioning piece can be fixed in described locating hole.
Aforesaid hydraulic cylinder earrings lock clasp device, wherein, the arc bending of described holding section for matching with the radian of described groove.
The hydraulic cylinder earrings lock clasp device that the present invention proposes, its characteristics and advantage are:
Hydraulic cylinder earrings lock clasp device of the present invention, by groove is set on bearing pin, and the holding section is set on clamp, can easily clamp and bearing pin be fastened, simultaneously, flexible positioning piece is set on the holding section, and will be resisted against in the locating hole of hydraulic cylinder earrings, can realize strong fix, and then reach the purpose of fixed pin shaft clamp; When needs are changed bearing pin or working roll, only need the pull-up flexible positioning piece, and drive clamp to direction rotation away from bearing pin, get final product the spacing fastening state of engagement release portion to groove, realize changing fast bearing pin.The hydraulic cylinder earrings lock clasp device that the present invention proposes, it not only is easy to the replacing to hydraulic cylinder earrings bearing pin, and has saved the time of changing bearing pin, has improved efficiency, and has reduced labour intensity.
Description of drawings
Fig. 1 is that the master of known configurations looks schematic diagram;
Fig. 2 is the cross-sectional schematic along A-A line among Fig. 1;
Fig. 3 is the three-dimensional structure diagram of hydraulic cylinder earrings lock clasp device of the present invention;
Fig. 4 is that the master of hydraulic cylinder earrings lock clasp device of the present invention looks schematic diagram;
Fig. 5 is the cross-sectional schematic along B-B line among Fig. 4;
Fig. 6 is that clamp of the present invention rotates the schematic diagram when breaking away from bearing pin.
The drawing reference numeral explanation
1 hydraulic cylinder earrings, 11 locating holes, 2 bearing pins
21 grooves, 3 clamps, 31 stiff ends
311 first connecting holes, 32 movable end, 321 second connecting holes
33 holding sections, 34 linings, 35 bolts
4 elastic positioning pins, 41 spring spools, 42 positioning pin rods
421 positioning ends, 422 control ends, 423 flanges
43 springs, 44 taper knobs
The specific embodiment
The present invention proposes a kind of hydraulic cylinder earrings lock clasp device, comprise hydraulic cylinder earrings and bearing pin, described bearing pin runs through described hydraulic cylinder earrings, wherein, described hydraulic cylinder earrings lock clasp device further also has a clamp, described clamp is provided with a holding section, one end of described clamp is a stiff end, described stiff end can be rotatably fixed to a side of described hydraulic cylinder earrings, the other end is a movable end, described movable end can be that the center is rotated with described stiff end, has a flexible positioning piece on this movable end; One end of described bearing pin is provided with a ring groove, and the width of described groove matches with the holding section of described clamp, and described clamp can be sticked in the groove of described bearing pin.The hydraulic cylinder earrings lock clasp device that the present invention proposes can not only be changed working roll easily, and save the replacing time, has improved efficiency, and has reduced labour intensity.
Understand for technical characterictic of the present invention, purpose and effect being had more clearly, below in conjunction with accompanying drawing and preferred embodiment, the specific embodiment, structure, feature and the function of the hydraulic cylinder earrings lock clasp device that the present invention is proposed, describe in detail as after.In addition, by the explanation of the specific embodiment, when can being to reach technological means and the effect that predetermined purpose takes to be goed deep into concrete understanding more to the present invention, however institute's accompanying drawing only provide with reference to and explanation usefulness, be not to be used for the present invention is limited.
Fig. 3 is the three-dimensional structure diagram of hydraulic cylinder earrings lock clasp device of the present invention; Fig. 4 is that the master of hydraulic cylinder earrings lock clasp device of the present invention looks schematic diagram; Fig. 5 is the cross-sectional schematic along B-B line among Fig. 4; Fig. 6 is that clamp of the present invention rotates the schematic diagram when breaking away from bearing pin.
Shown in Fig. 3-5, the hydraulic cylinder earrings lock clasp device that the present invention proposes, comprise: hydraulic cylinder earrings 1, the bearing pin 2 that runs through described hydraulic cylinder earrings 1, wherein, described hydraulic cylinder earrings lock clasp device further also has a clamp 3, one end of described clamp 3 is a stiff end 31, described stiff end 31 can be rotatably fixed to a side of described hydraulic cylinder earrings 1, the other end is a movable end 32, and described movable end 32 can be that the center is rotated with described stiff end 31, has a flexible positioning piece on this movable end 32, this flexible positioning piece is preferably and can also be provided with a holding section 33 on the described clamp 3 along the flexible elastic positioning pin 4 of described bearing pin 2 axial elasticities; One end of described bearing pin 2 is provided with a ring groove 21, and the width of described groove 21 matches with the holding section 33 of described clamp 3, and described clamp 3 can be sticked in the groove 21 of described bearing pin 2.
Wherein, the stiff end 31 of described clamp 3 has first connecting hole 311, be provided with lining 34 in this first connecting hole 311, one bolt 35 passes described lining 34 fixedlys connected with described hydraulic cylinder earrings 1, described lining 34 can be avoided clamp 3 directly to contact with bolt 35 in rotary course and wear and tear, and prolongs the service life of clamp 3; The movable end 32 of described clamp 3 has second connecting hole 321, and described elastic positioning pin 4 is arranged in this second connecting hole 321.
Further, described elastic positioning pin 4 also includes spring spool 41 and positioning pin rod 42, wherein, described spring spool 41 is fixed in described second connecting hole 321, this spring spool 41 can be bolted in second connecting hole 321, improving the compactness that elastic positioning pin 4 is connected with clamp 3, and be convenient to dismounting and change to elastic positioning pin 4; Positioning pin rod 42 is set in the described spring spool 41, the one end is for can protrude out the positioning end 421 that described spring spool 41 is resisted against described hydraulic cylinder earrings 1, the other end is the control end 422 that protrudes out described spring spool 41, and described positioning pin rod 42 is provided with flange 423; Spring 43 is set on the described positioning pin rod 42, and be contained in the described spring spool 41, one end of described spring 43 is resisted against described spring spool 41, the other end is resisted against the flange 423 of described positioning pin rod 42, under the situation that does not apply external force, this spring 43 is in and freely stretches or micro-compressive state, under the elastic force effect of spring 43, the positioning end 421 of the positioning pin rod 42 of fixing chuck plate 3 is stretched out spring spool 41 and is resisted against described hydraulic cylinder earrings 1 closely, the position that clamp 3 is positioned to stipulate.Wherein, the control end 422 of described positioning pin rod 42 is provided with taper knob 44, by stretching taper knob 44, can away from hydraulic cylinder earrings 1, thereby be convenient to rotate clamp 3 easily with positioning end 421 pull-ups of positioning pin rod 42.
In preferred embodiment, be provided with in the present invention on the described hydraulic cylinder earrings 1 of described clamp 3 one sides, have at least two locating holes 11, these two locating holes 11 equate apart from the distance of the stiff end 31 of described clamp 3, and described flexible positioning piece (elastic positioning pin 4) can be fixed in described locating hole 11.That is to say that in actual use, the positioning end 421 of the positioning pin rod 42 of elastic positioning pin 4 can correspondingly insert in the locating hole 11, to improve the fixed effect of 4 pairs of clamps 3 of elastic positioning pin.
In addition, the arc bending of described holding section 3 for matching with the radian of described groove 21 makes the holding section 31 of clamp 3 and the groove of bearing pin 2 can reach good fastening state.
The hydraulic cylinder earrings lock clasp device that the present invention proposes, its operation principle is: bearing pin 2 runs through the spindle nose of hydraulic cylinder earrings 1 and working roll, hydraulic cylinder, working roll are linked together, and be provided with a ring groove 21 at the end that bearing pin 2 stretches out hydraulic cylinder earrings 1; Bolt 35 passes first connecting hole 311 that is provided with on the stiff end 31 of clamp 3 fixedlys connected with hydraulic cylinder earrings 1, by being arranged on the lining 34 in described first connecting hole 311, the movable end 32 of described clamp 3 can serve as that axle is rotated with bolt 35, and, clamp 3 is fixed on the position of regulation by means of the elastic positioning pin 4 that is arranged on the movable end 32.Specifically be, be pulled outwardly and stretch out one's hand sleeve 44 and make the positioning end 421 of positioning pin rod leave hydraulic cylinder earrings 1, and the movable end 32 that makes clamp 3 is that rotate at the center with stiff end 31, be fastened in the groove 21 of bearing pin 2 when holding section 33 after, relieving is to the pulling of taper knob 44, under the effect of the restoring force of the spring 43 in being located at spring spool 41, the positioning end 421 of positioning pin rod 42 is embedded in the locating hole 11, at this moment, the stiff end 31 of preferred clamp 3, the movable end 32 of bearing pin 2 and clamp 3 is on same straight line, guarantee in the working roll operate as normal or carry out in the process of roll shifting operation, the holding section 33 of clamp 3 is sticked in the groove 21 of the bearing pin 2 that connects hydraulic cylinder earrings 1 and working roll spindle nose all the time securely, realized strong fix, and then reached the purpose of locking bearing pin 2 clamp 3.
Please in the lump referring to Fig. 6, when needs are changed working roll, the taper knob 44 of stretching positioning pin rod 42 control ends 422, make locating hole 11 disengagings of positioning end 421 with the hydraulic cylinder earrings 1 of positioning pin rod 42, and the movable end 32 that drives clamp 3 is rotated to the direction away from bearing pin 2, clamp 3 and bearing pin 2 are separated, fastening state with 33 pairs of grooves 21 of engagement release portion, simultaneously elastic positioning pin 4 is moved to another locating hole 11 places and release lever cover 44, because spring 43 is in compressive state during stretching taper knob 44, at this moment, the restoring force of spring 43 acts on the flange 423 of positioning pin rod 42, the positioning end 421 of positioning pin rod 42 is fastened in the locating hole 11 of hydraulic cylinder earrings 1 with fixing chuck plate 3, prevents from extracting bearing pin 2 out, swing owing to clamp 3 in the process of replacing working roll influences normal roller replacing operation.After finishing the roll change operation, then repeat above-mentioned action, clamp 3 backward rotation are sticked in the groove 21 of bearing pin 2, make hydraulic cylinder earrings, bearing pin, working roll fixedly connected.
The above only is the schematic specific embodiment of the present invention, is not in order to limit scope of the present invention.Any those skilled in the art, equivalent variations and the modification done under the prerequisite that does not break away from design of the present invention and principle all should belong to the scope of protection of the invention.And need to prove, each part of the present invention is not limited in above-mentioned overall applicability, but can combine with other prior art according to actual needs, therefore, other combination relevant with this case inventive point and concrete the application have been contained in the present invention in the nature of things.
Claims (9)
1. hydraulic cylinder earrings lock clasp device, comprise: the hydraulic cylinder earrings, the bearing pin that runs through described hydraulic cylinder earrings, it is characterized in that, described hydraulic cylinder earrings lock clasp device further also has a clamp, described clamp is provided with a holding section, one end of described clamp is a stiff end, described stiff end can be rotatably fixed to a side of described hydraulic cylinder earrings, the other end is a movable end, described movable end can be that the center is rotated with described stiff end, has a flexible positioning piece on this movable end; One end of described bearing pin is provided with a ring groove, and the width of described groove matches with the holding section of described clamp, and described clamp can be sticked in the groove of described bearing pin.
2. hydraulic cylinder earrings lock clasp device as claimed in claim 1 is characterized in that the stiff end of described clamp has first connecting hole, is provided with lining in this first connecting hole, and a bolt passes described lining fixedlys connected with described hydraulic cylinder earrings.
3. hydraulic cylinder earrings lock clasp device as claimed in claim 1 is characterized in that, described flexible positioning piece is can be along the flexible elastic positioning pin of described bearing pin axial elasticity.
4. hydraulic cylinder earrings lock clasp device as claimed in claim 3 is characterized in that the movable end of described clamp has second connecting hole, and described elastic positioning pin is arranged in this second connecting hole.
5. hydraulic cylinder earrings lock clasp device as claimed in claim 4 is characterized in that described elastic positioning pin has: spring spool, described spring spool are fixed in described second connecting hole; Positioning pin rod is set in the described spring spool, and an end is for can protrude out the positioning end that described spring spool is resisted against described hydraulic cylinder earrings, and the other end is the control end that protrudes out described spring spool, and described positioning pin rod is provided with flange; Spring housing is located on the described positioning pin rod, and is contained in the described spring spool, and an end of described spring is resisted against described spring spool, and the other end is resisted against the flange of described positioning pin rod.
6. hydraulic cylinder earrings lock clasp device as claimed in claim 5 is characterized in that the control end of described positioning pin rod is provided with taper knob.
7. as each described hydraulic cylinder earrings lock clasp device of claim 1 to 6, it is characterized in that, be provided with on the described hydraulic cylinder earrings of described clamp one side and have at least two locating holes, these two locating holes equate apart from the distance of the stiff end of described clamp, and described flexible positioning piece can be fixed in described locating hole.
8. as each described hydraulic cylinder earrings lock clasp device of claim 1 to 6, it is characterized in that the arc bending of described holding section for matching with the radian of described groove.
9. hydraulic cylinder earrings lock clasp device as claimed in claim 1 is characterized in that the stiff end of described clamp has first connecting hole, is provided with lining in this first connecting hole, and a bolt passes described lining fixedlys connected with described hydraulic cylinder earrings; The movable end of described clamp has second connecting hole; Described flexible positioning piece is can be along the flexible elastic positioning pin of described bearing pin axial elasticity; Described elastic positioning pin is arranged in this second connecting hole; Described elastic positioning pin has: spring spool, described spring spool are fixed in described second connecting hole; Positioning pin rod is set in the described spring spool, one end is for can protrude out the positioning end that described spring spool is resisted against described hydraulic cylinder earrings, the other end is the control end that protrudes out described spring spool, and one handle is set on described control end, and described positioning pin rod is provided with flange; Spring housing is located on the described positioning pin rod, and is contained in the described spring spool, and an end of described spring is resisted against described spring spool, and the other end is resisted against the flange of described positioning pin rod; Be provided with on the described hydraulic cylinder earrings of described clamp one side and also have at least two locating holes, these two locating holes equate apart from the distance of the stiff end of described clamps, and described flexible positioning piece can be fixed in described locating hole; The arc bending of described holding section for matching with the radian of described groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010548297 CN102078883A (en) | 2010-11-17 | 2010-11-17 | Hydraulic cylinder lug ring pin shaft locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010548297 CN102078883A (en) | 2010-11-17 | 2010-11-17 | Hydraulic cylinder lug ring pin shaft locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102078883A true CN102078883A (en) | 2011-06-01 |
Family
ID=44085191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010548297 Pending CN102078883A (en) | 2010-11-17 | 2010-11-17 | Hydraulic cylinder lug ring pin shaft locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102078883A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103191925A (en) * | 2013-03-28 | 2013-07-10 | 鞍钢股份有限公司 | Bidirectional locking method and mechanism for fixed arm of roll rack |
| CN106594038A (en) * | 2016-12-29 | 2017-04-26 | 邓成洪 | Locking device comprising pin shaft |
| CN107120347A (en) * | 2017-05-26 | 2017-09-01 | 湖北聚力汽车技术股份有限公司 | A kind of special purpose vehicle bearing pin fixation kit |
| CN112594469A (en) * | 2020-11-24 | 2021-04-02 | 中国人民解放军96901部队24分队 | Variable throttling rotary joint based on hydraulic cylinder pin shaft |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201293025Y (en) * | 2008-11-14 | 2009-08-19 | 贵州凯星液力传动机械有限公司 | Dual spindle positioning device |
| CN201322028Y (en) * | 2008-12-08 | 2009-10-07 | 徐州重型机械有限公司 | Quick assembling and disassembling device of shaft |
| CN201862632U (en) * | 2010-11-17 | 2011-06-15 | 中冶京诚工程技术有限公司 | Pin shaft locking device of hydraulic cylinder ear loop |
-
2010
- 2010-11-17 CN CN 201010548297 patent/CN102078883A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201293025Y (en) * | 2008-11-14 | 2009-08-19 | 贵州凯星液力传动机械有限公司 | Dual spindle positioning device |
| CN201322028Y (en) * | 2008-12-08 | 2009-10-07 | 徐州重型机械有限公司 | Quick assembling and disassembling device of shaft |
| CN201862632U (en) * | 2010-11-17 | 2011-06-15 | 中冶京诚工程技术有限公司 | Pin shaft locking device of hydraulic cylinder ear loop |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103191925A (en) * | 2013-03-28 | 2013-07-10 | 鞍钢股份有限公司 | Bidirectional locking method and mechanism for fixed arm of roll rack |
| CN103191925B (en) * | 2013-03-28 | 2016-08-10 | 鞍钢股份有限公司 | A kind of bidirectional locking method of roll stand fixed arm and mechanism thereof |
| CN106594038A (en) * | 2016-12-29 | 2017-04-26 | 邓成洪 | Locking device comprising pin shaft |
| CN107120347A (en) * | 2017-05-26 | 2017-09-01 | 湖北聚力汽车技术股份有限公司 | A kind of special purpose vehicle bearing pin fixation kit |
| CN112594469A (en) * | 2020-11-24 | 2021-04-02 | 中国人民解放军96901部队24分队 | Variable throttling rotary joint based on hydraulic cylinder pin shaft |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102078883A (en) | Hydraulic cylinder lug ring pin shaft locking device | |
| CN101568387A (en) | Roller mill | |
| CN201862632U (en) | Pin shaft locking device of hydraulic cylinder ear loop | |
| CN108430808A (en) | tire changer | |
| CN101322979B (en) | Assembly roller | |
| CN108297014A (en) | A kind of mechanical wrench of wide adaptability | |
| CN200955553Y (en) | Coupler device of quick mounting-dismounting universal coupling | |
| CN209264262U (en) | Impact type torque loading experimental apparatus | |
| CN207470629U (en) | Closed type bearing disassembling tool | |
| CN104148140B (en) | The changing spike devices and change nail method of a kind of high-pressure roller mill quick-replaceable roll surface stud | |
| US20100126003A1 (en) | Device for quickly replacing a work roll | |
| JPS6349312A (en) | Rolling roll changing method | |
| CN203141278U (en) | Rust removing device of bowl-fastened-type scaffold steel tube rust removing machine | |
| CN110815107A (en) | Hydraulic wrench | |
| CN205045706U (en) | Slab pincers body shutter | |
| CN201575071U (en) | Fixing device for bearing support | |
| CN106552691B (en) | Grinding roller bearing structure and milling machine | |
| CN104149543B (en) | A kind of combined type is twisted tool | |
| CN201669266U (en) | Device capable of quickly dismantling temper mill shaft head | |
| US20200283964A1 (en) | Handheld tool for installing or removing railway track fasteners | |
| CN221208184U (en) | Reversible breaker hammer | |
| CN204913797U (en) | Frock of pneumatic cylinder and tripod supporting shoe is ground to quick assembly disassembly intermediate speed | |
| CN220268087U (en) | Cylinder center swing bracket with improved structure | |
| CN213225954U (en) | Improved valve switch wrench for petroleum refining | |
| CN204339710U (en) | Chain provision for disengagement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110601 |