CN204755626U - Bloated axle of machinery - Google Patents
Bloated axle of machinery Download PDFInfo
- Publication number
- CN204755626U CN204755626U CN201520325566.1U CN201520325566U CN204755626U CN 204755626 U CN204755626 U CN 204755626U CN 201520325566 U CN201520325566 U CN 201520325566U CN 204755626 U CN204755626 U CN 204755626U
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- China
- Prior art keywords
- swelling
- shaft
- sleeve
- axle
- swelling shaft
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model provides a bloated axle of machinery, characterized by includes the coaxial axial propulsion connecting device who installs in proper order, the axle that expands, internal spline connecting sleeve, the off -axial sleeve that expands, the axle inner skleeve that expands, bloated claw sleeve, axle head setting element, axle head, the axle that expands divide into the spline portion and the tight portion of expanding along the axial, and expand the round platform of tight portion tip around the axle that expands and evenly arrange a 3 -8 same bloated claw, the internal spline connecting sleeve the suit at spline portion surface and through the spline interlock, transmission fixed connection is at bloated off -axial sleeve thin segment surface for driving whole bloated axle of machinery and rotating, the thick section of the off -axial sleeve that expands and the axle that expands expand the tight portion outside to have and is used for the expand clearance of axle inner skleeve of installation, can endwise slip between expand axle and the bloated off -axial sleeve, expand claw sleeve suit in the bloated claw outside, and adoption flexible connectors is continuous between the bloated claw, flexible connectors is used for returning the back at the axle that expands to be made the claw that expands withdraw to reset, expand two telescopic end edge of claw respectively with axle inner skleeve opening end edge and the axle head fixed connection of expanding.
Description
Technical field
The utility model relates to a kind of swelling shaft, especially a kind of mechanical expansion shaft that simultaneously can meet axial auto-extending and rotation.
Background technique
At present, for being coated with, cutting, print, rewinding, compound, papermaking, the industry such as plastics the unwinding and rewinding of flexible parent metal all adopt the mounting type of swelling shaft.Its feature is easy to loading and unloading, and manufacturing efficiency is high.Such as cutting machine rolling, unreel in application: rolling is that the aluminium foil (band) that will point to cut is crimped onto on sleeve, before batching, sleeve is through on winding shaft, coiling process middle sleeve and winding shaft rotate simultaneously, can not produce relative movement, batching sleeve after terminating can conveniently dismantle with winding shaft; Further, in industrial packaging production line, sometimes need that rotation is carried out to the large-scale coiled material with reel and to tape action etc.For achieving the above object, winding shaft can adopt two kinds of forms, and one is air-expanding shaft, and another kind is mechanical expansion shaft.Air-expanding shaft is lath by high-pressure aerated its surface of promotion or key bar expansion sleeve, to reach swelling object.Due to the structural feature of air-expanding shaft self, when mounted because the gravity of swelling shaft causes the deformation of its surperficial lath or key bar different, the coaxality of installing rear swelling shaft and reel will be caused bad.And lath or key bar rely on gas pressure to make reel swelling, once gas leakage, consequence is difficult to estimate.In addition, when air-expanding shaft High Rotation Speed, due to the repeat effect of coiled material gravity, coiled material and sleeve will together with shake, cause the coiled material both sides after cutting irregular.But a lot of problems such as mechanical expansion shaft exists structure bulky, shaft extension can not control when going out automatically now.As the patent No. a kind of chuck body formula mechanical expansion shaft disclosed in CN101994738A, it comprises a thin ends and thick middle mandrel, the inward at both ends of mandrel is provided with bearing, locking nut and chuck body successively, be provided with coupling in wherein one end of mandrel, the chuck body of two same model has 3 or 4 stationary jaws and is connected to the arc swelling shaft dunnage on each claw.When needs swelling action, must by the screw thread manually tightened on the chuck body of both sides to reach swelling object.Its shortcoming is, chuck body is heavier, and the diameter of axle of its mandrel is very thick, and cannot meet for the swelling compared with pore, application area is very restricted.And, when needs carry out swelling action to axle, need the chuck body manually simultaneously tightening both sides, very inconvenient.For another example the patent No. a kind of high-accuracy mechanical swelling shaft disclosed in CN204057502U, it is primarily of swelling shaft cylinder, pull bar, spring, expansion core, expansion block composition.When needs carry out swelling, the multiple independently mechanical expansion clamping system work be separately made up of multiple expansion core vertically in swelling shaft cylinder, make swelling shaft swelling.Although the sleeve that this mechanical expansion shaft can differ to random lengths, internal diameter realizes the swelling function of highi degree of accuracy, high-axiality, this mechanical expansion shaft can only meet the rotation around axis, automatically cannot stretch into and need in the sleeve of swelling, can not meet the requirement of automation.
Model utility content
For the deficiencies in the prior art, technical problem to be solved in the utility model is: provide a kind of mechanical expansion shaft, this swelling shaft not only has higher coaxality, and in high speed rotating process non-jitter, can either meet the rotation requirement after swelling, can also overall automatically stretch into needs in the sleeve of swelling simultaneously, simple and reasonable, utilitarian design is ingenious, can realize Automated condtrol.
The utility model provides a kind of mechanical expansion shaft, comprises axial advance connection set 1, swelling shaft 2, internal spline coupling sleeve 4, swelling shaft outer sleeve 6, swelling shaft inner sleeve 7, swollen pawl sleeve 11, axle head locating piece 14, the axle head 15 coaxially installed successively,
Described swelling shaft is divided into spline part and swelling portion vertically, the outer surface of described spline part near end has external splines, spline part end has the mounting hole coaxial with swelling shaft for installing axial advance connection set, the described swelling portion diameter of axle is greater than spline part, and swelling portion and spline part intersection forming station stage structure, the swelling portion end diameter of axle reduces, thus forms the round platform with certain taper in the position near end, swelling portion;
Described axial advance connection set comprises advancing means coupling shaft 1.1, thrust ball bearing 1.2, the block 1.3 that is threaded, contiguous block Cock screw 1.4, described advancing means coupling shaft is the multidiameter shaft be coaxially arranged in mounting hole, be divided into thick section and thin segment, the thin segment of advancing means coupling shaft and the thick section of part stretch into mounting hole inside, in advancing means coupling shaft thin segment end, there is radial protrusion, the have a common boundary advancing means coupling shaft thin segment between stepped part and radial protrusion that formed of the thick section of advancing means coupling shaft and thin segment is used for installed thrust ball bearing 1.2, the inwall of described mounting hole is along the circumferential direction uniformly distributed 2-6 the block that is threaded, the described block that is threaded in the both sides of mounting hole axis for fixedly mounting the seat ring of thrust ball bearing, described thrust ball bearing is sleeved on advancing means coupling shaft thin segment and respectively installs 1 cover in the block both sides that are threaded, the described block that is threaded is fixed on mounting hole inwall by contiguous block Cock screw 1.4, the thick section end of described advancing means coupling shaft has advancing means connecting thread hole, for coupling shaft to advancing means,
Round platform around end, swelling shaft swelling portion is evenly arranged 3-8 same swollen pawl, described swollen pawl is the ladder block that longitudinal section overlaps with round platform axial section, swollen pawl bottom side can coordinate with round platform outer surface and to contact and swollen pawl bottom side bus length is longer than round platform bus, the cross-section that swollen pawl overlaps with round platform radial section is convex, forms the ladder block structure that top side face width is less than bottom side;
Described internal spline coupling sleeve is being sleeved on spline part outer surface and is being engaged with the external splines of spline part by the internal spline of internal spline coupling sleeve internal surface, described swelling shaft outer sleeve is the ladder barrel corresponding with swelling shaft profile, be divided into thin segment and thick section, the thin segment of swelling shaft outer sleeve is socketed in internal spline coupling sleeve outer surface close to terminal interior surface and is fixedly connected with, described transmission device is fixedly connected on swelling shaft outer sleeve thin segment outer surface, rotates for driving whole mechanical expansion shaft, the thick section of described swelling shaft outer sleeve is positioned at outside the swelling portion of swelling shaft, has the gap for installing swelling shaft inner sleeve outside the thick section of swelling shaft outer sleeve and swelling shaft swelling portion, described swelling shaft inner sleeve one end open, the other end has the base plate of band center hole, the diameter of described center hole can make swelling shaft inner sleeve be installed on the swelling portion outer surface of swelling shaft, in described swelling shaft inner sleeve, the swelling portion outer surface of outer surface and swelling shaft and swelling shaft outer sleeve inner surface all have certain interval makes swelling shaft inner sleeve, can slide axially between swelling shaft and swelling shaft outer sleeve, described swelling shaft inner sleeve is circumferentially evenly distributed with 3-8 protruding spring fitting open tubular column 7.1 close to the outer surface of opening end, described spring fitting open tubular column 7.1 inner bottom installs steel ball, middle placement spring 9, top has screw thread for mounting spring Cock screw 10, described swelling portion outer surface has the groove holding steel ball along excircle,
Described swollen pawl sleeve set is outside swollen pawl 12, and the position corresponding with swollen pawl along swollen pawl sleeve periphery has stepped groove, for stretching out and regain swollen pawl when the round platform axial motion of end, swelling portion, adopts Flexible Connector 13 to be connected between described swollen pawl; Described Flexible Connector is used for after swelling shaft is return, make swollen pawl regain and resets;
The edge, two end part of described swollen pawl sleeve is fixedly connected with swelling shaft inner sleeve open end edge and is fixedly connected with axle head by axle head locating piece respectively.
Described mechanical expansion shaft, is characterized in that the inside, swelling portion of swelling shaft is hollow-core construction.
Described mechanical expansion shaft, it is characterized in that the thin segment of swelling shaft outer sleeve is socketed in internal spline coupling sleeve outer surface close to terminal interior surface and the mode be fixedly connected with is: internal spline coupling sleeve has radial flange close to side, swelling shaft spline part end, swelling shaft outer sleeve is fixedly connected with spline joint sleeve with swelling shaft outer sleeve thin segment end lateral margin by with bolts 3 radial flange through internal spline coupling sleeve.
Described mechanical expansion shaft, is characterized in that the cone angle of swelling shaft swelling portion end round platform is 30-60 °, and described swollen pawl bottom side bus length is 1.5-2 times of round platform bus length.
The utility model provides each critical piece of mechanical expansion shaft coaxially to install, the coaxality that easy realization is higher, therefore non-jitter in high speed rotating process, and make whole mechanical expansion shaft can realize swelling by advancing meanss such as cylinders by the thrust ball bearing in axial advance connection set 1, ensure that swelling reliability, and rotary actuator is connected with swelling shaft by spline, also the requirement carrying out High Rotation Speed after swelling can be met, the preferred cone angle of swelling shaft swelling portion round platform during this external design, and adopt Flexible Connector to connect swollen pawl, when making swelling shaft stretch into sleeve when axial motion, the radial enclasping force that Flexible Connector produces makes swollen pawl can not stretch out from swollen pawl sleeve, guarantee stretching into of whole mechanical expansion shaft, swelling automatically can complete in axial motion, simple and reasonable, reliable in action, easily be automated control.
Accompanying drawing explanation
The mechanical expansion shaft general structure schematic diagram of Fig. 1 for providing in the utility model embodiment 1;
Fig. 2 is A-A place sectional view in Fig. 1.
The structural representation of the swollen pawl of mechanical expansion shaft of Fig. 3 for providing in the utility model embodiment 1
Description of reference numerals: 1, axial advance connection set, 1.1, advancing means coupling shaft, 1.2 thrust ball bearings, 1.3, be threaded block, 1.4, contiguous block Cock screw, 2, swelling shaft, 3, bolt connection piece, 4, internal spline coupling sleeve, 5, transmission device, 6, swelling shaft outer sleeve, 7, swelling shaft inner sleeve, 7.1 spring fitting open tubular columns, 8, steel ball, 9, spring, 10, spring Cock screw, 11, swollen pawl sleeve, 12, swollen pawl, 13, Flexible Connector, 14, axle head locating piece, 15, axle head.
Embodiment
The utility model is described further below in conjunction with embodiment's accompanying drawing.
Embodiment's 1 one kinds of mechanical expansion shafts,
As shown in Figure 1, as shown in Figure 2, described swollen pawl structural representation as shown in Figure 3 for described mechanical expansion shaft is swollen pawl place sectional view for the mechanical expansion shaft general structure schematic diagram that the present embodiment provides.
A kind of mechanical expansion shaft that the utility model provides, comprises axial advance connection set 1, swelling shaft 2, internal spline coupling sleeve 4, swelling shaft outer sleeve 6, swelling shaft inner sleeve 7, swollen pawl sleeve 11, axle head locating piece 14, the axle head 15 coaxially installed successively,
Described swelling shaft is divided into spline part and swelling portion vertically, the outer surface of described spline part near end has external splines, spline part end has the mounting hole coaxial with swelling shaft for installing axial advance connection set, the described swelling portion diameter of axle is greater than spline part, and swelling portion and spline part intersection forming station stage structure, the swelling portion end diameter of axle reduces, thus form the round platform with certain taper in the position near end, swelling portion, for alleviating the overall weight of mechanical expansion shaft in the present embodiment, inside, swelling portion is hollow-core construction;
Described axial advance connection set comprises advancing means coupling shaft 1.1, thrust ball bearing 1.2, be threaded block 1.3, contiguous block Cock screw 1.4, described advancing means coupling shaft is the multidiameter shaft be coaxially arranged in mounting hole, be divided into thick section and thin segment, the thin segment of advancing means coupling shaft and the thick section of part stretch into mounting hole inside completely, in advancing means coupling shaft thin segment end, there is radial protrusion, the have a common boundary advancing means coupling shaft thin segment between stepped part and radial protrusion that formed of the thick section of advancing means coupling shaft and thin segment is used for installed thrust ball bearing 1.2, the inwall of described mounting hole is along the circumferential direction uniformly distributed 2-6 the block that is threaded, the described block that is threaded in the both sides of mounting hole axis for fixedly mounting the seat ring of thrust ball bearing, described thrust ball bearing is set with advancing means coupling shaft thin segment and respectively installs 1 cover in the block both sides that are threaded, the described block that is threaded is fixed on mounting hole inwall by contiguous block Cock screw 1.4, and the thick section end of described advancing means coupling shaft has advancing means connecting thread hole, for coupling shaft to the piston rod of advancing means as jacking cylinder,
6 same swollen pawls are evenly arranged around round platform, described swollen pawl is the ladder block that longitudinal section overlaps with round platform axial section, swollen pawl bottom side can coordinate with round platform outer surface and to contact and swollen pawl bottom side bus length is longer than round platform bus, the cross-section that swollen pawl overlaps with round platform radial section is convex, forms the ladder block structure that top side face width is less than bottom side;
Described internal spline coupling sleeve is being sleeved on spline part outer surface and is being engaged with the external splines of spline part by the internal spline of internal spline coupling sleeve internal surface, described swelling shaft outer sleeve is the ladder barrel corresponding with swelling shaft profile, be divided into thin segment and thick section, the thin segment of swelling shaft outer sleeve is socketed in internal spline coupling sleeve outer surface close to terminal interior surface and is fixedly connected with, in the present embodiment, internal spline coupling sleeve has radial flange close to side, swelling shaft spline part end, swelling shaft outer sleeve is fixedly connected with spline joint sleeve with swelling shaft outer sleeve thin segment end lateral margin by with bolts 3 radial flange through internal spline coupling sleeve, described transmission device is fixedly connected on swelling shaft outer sleeve thin segment outer surface, rotates for driving whole mechanical expansion shaft.
The thick section of described swelling shaft outer sleeve is positioned at outside the swelling portion of swelling shaft, has the gap for installing swelling shaft inner sleeve outside the thick section of swelling shaft outer sleeve and swelling shaft swelling portion, described swelling shaft inner sleeve one end open, the other end has the base plate of band center hole, the diameter of described center hole can make swelling shaft inner sleeve be installed on the swelling portion outer surface of swelling shaft, in described swelling shaft inner sleeve, swelling portion outer surface and the swelling shaft outer sleeve inner surface of outer surface and swelling shaft all have certain interval, described swelling shaft inner sleeve is circumferentially evenly distributed with 2-4 protruding spring fitting open tubular column 7.1 close to the outer surface of opening end, described spring fitting open tubular column 7.1 inner bottom installs steel ball, middle placement spring 9, top has screw thread for mounting spring Cock screw 10, described swelling portion outer surface has the groove holding steel ball along excircle,
Described swollen pawl sleeve set is outside swollen pawl 12, and the position corresponding with swollen pawl, swollen pawl sleeve periphery has stepped groove, for stretching out and regain swollen pawl when the round platform axial motion of end, swelling portion, adopts Flexible Connector 13 to be connected between described swollen pawl; Described Flexible Connector is used for after swelling shaft is return, make swollen pawl regain and resets;
The edge, two end part of described swollen pawl sleeve is fixedly connected with swelling shaft inner sleeve open end edge and is fixedly connected with axle head by axle head locating piece respectively.
The utility model is not addressed part and is applicable to prior art.
The working principle of the mechanical expansion shaft that the utility model provides is: after described mechanical expansion shaft installation, the advancing means coupling shaft of axial advance connection set 1 is connected with the cardan shaft end of Level Promoting device (being generally propulsion cylinder) by advancing means connecting thread hole, when needs carry out swelling action, cardan shaft driven forward swelling shaft and and then be forced through swollen pawl and promote swollen pawl quill to travelling forward, now swelling shaft inner sleeve travels forward with swollen pawl sleeve with axle head 15, and swelling shaft outer sleeve keeps motionless because being fixedly connected with transmission device and by internal spline coupling sleeve and swelling shaft, axial relative movement occurring.When axle head 15 stretch into reel and spring fitting open tubular column end face on swelling shaft inner sleeve and reel end contact time, continue to promote swelling shaft motion, there is axial relative movement in round platform and the swelling shaft sleeve of the end, swelling portion of swelling shaft, thus by swollen pawl by the swollen pawl sleeve of shoulder hole expansion, complete swelling action.
When needs mechanical expansion shaft rotates, the whole mechanical expansion shaft of drive is done axial rotary motion by transmission device, now by passing through the thrust ball bearing in axial advance connection set 1 between swelling shaft and cardan shaft, the rotary motion of swelling shaft is made to be delivered to cardan shaft.
Claims (4)
1. a mechanical expansion shaft, is characterized in that comprising axial advance connection set, swelling shaft, internal spline coupling sleeve, swelling shaft outer sleeve, swelling shaft inner sleeve, swollen pawl sleeve, axle head locating piece, the axle head coaxially installed successively,
Described swelling shaft is divided into spline part and swelling portion vertically, the outer surface of described spline part near end has external splines, spline part end has the mounting hole coaxial with swelling shaft for installing axial advance connection set, the described swelling portion diameter of axle is greater than spline part, and swelling portion and spline part intersection forming station stage structure, the swelling portion end diameter of axle reduces, thus forms the round platform with certain taper in the position near end, swelling portion;
Described axial advance connection set comprises advancing means coupling shaft, thrust ball bearing, the block that is threaded, contiguous block Cock screw, described advancing means coupling shaft is the multidiameter shaft be coaxially arranged in mounting hole, be divided into thick section and thin segment, the thin segment of advancing means coupling shaft and the thick section of part stretch into mounting hole inside, in advancing means coupling shaft thin segment end, there is radial protrusion, the have a common boundary advancing means coupling shaft thin segment between stepped part and radial protrusion that formed of the thick section of advancing means coupling shaft and thin segment is used for installed thrust ball bearing, the inwall of described mounting hole is along the circumferential direction uniformly distributed 2-6 the block that is threaded, the described block that is threaded in the both sides of mounting hole axis for fixedly mounting the seat ring of thrust ball bearing, described thrust ball bearing is sleeved on advancing means coupling shaft thin segment and respectively installs 1 cover in the block both sides that are threaded, the described block that is threaded is fixed on mounting hole inwall by contiguous block Cock screw, the thick section end of described advancing means coupling shaft has advancing means connecting thread hole, for coupling shaft to advancing means,
Round platform around end, swelling shaft swelling portion is evenly arranged 3-8 same swollen pawl, described swollen pawl is the ladder block that longitudinal section overlaps with round platform axial section, swollen pawl bottom side can coordinate with round platform outer surface and to contact and swollen pawl bottom side bus length is longer than round platform bus, the cross-section that swollen pawl overlaps with round platform radial section is convex, forms the ladder block structure that top side face width is less than bottom side;
Described internal spline coupling sleeve is being sleeved on spline part outer surface and is being engaged with the external splines of spline part by the internal spline of internal spline coupling sleeve internal surface, described swelling shaft outer sleeve is the ladder barrel corresponding with swelling shaft profile, be divided into thin segment and thick section, the thin segment of swelling shaft outer sleeve is socketed in internal spline coupling sleeve outer surface close to terminal interior surface and is fixedly connected with, transmission device is fixedly connected on swelling shaft outer sleeve thin segment outer surface, rotates for driving whole mechanical expansion shaft, the thick section of described swelling shaft outer sleeve is positioned at outside the swelling portion of swelling shaft, has the gap for installing swelling shaft inner sleeve outside the thick section of swelling shaft outer sleeve and swelling shaft swelling portion, described swelling shaft inner sleeve one end open, the other end has the base plate of band center hole, the diameter of described center hole can make swelling shaft inner sleeve be installed on the swelling portion outer surface of swelling shaft, in described swelling shaft inner sleeve, the swelling portion outer surface of outer surface and swelling shaft and swelling shaft outer sleeve inner surface all have certain interval makes swelling shaft inner sleeve, can slide axially between swelling shaft and swelling shaft outer sleeve, described swelling shaft inner sleeve is circumferentially evenly distributed with 3-8 protruding spring fitting open tubular column close to the outer surface of opening end, described spring fitting open tubular column inner bottom installs steel ball, middle placement spring, top has screw thread for mounting spring Cock screw, described swelling portion outer surface has the groove holding steel ball along excircle,
Described swollen pawl sleeve set is outside swollen pawl, and the position corresponding with swollen pawl along swollen pawl sleeve periphery has stepped groove, for stretching out and regain swollen pawl when the round platform axial motion of end, swelling portion, adopts Flexible Connector to be connected between described swollen pawl; Described Flexible Connector is used for after swelling shaft is return, make swollen pawl regain and resets;
The edge, two end part of described swollen pawl sleeve is fixedly connected with swelling shaft inner sleeve open end edge and is fixedly connected with axle head by axle head locating piece respectively.
2. mechanical expansion shaft as claimed in claim 1, is characterized in that the inside, swelling portion of swelling shaft is hollow-core construction.
3. mechanical expansion shaft as claimed in claim 1, it is characterized in that the thin segment of swelling shaft outer sleeve is socketed in internal spline coupling sleeve outer surface close to terminal interior surface and the mode be fixedly connected with is: internal spline coupling sleeve has radial flange close to side, swelling shaft spline part end, swelling shaft outer sleeve is fixedly connected with spline joint sleeve with swelling shaft outer sleeve thin segment end lateral margin by with bolts the radial flange through internal spline coupling sleeve.
4. the mechanical expansion shaft as described in as arbitrary in claim 1-3, is characterized in that the cone angle of swelling shaft swelling portion end round platform is 30-60 °, described swollen pawl bottom side bus length be the 1.5-2 of round platform bus length doubly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520325566.1U CN204755626U (en) | 2015-05-20 | 2015-05-20 | Bloated axle of machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520325566.1U CN204755626U (en) | 2015-05-20 | 2015-05-20 | Bloated axle of machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204755626U true CN204755626U (en) | 2015-11-11 |
Family
ID=54470336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520325566.1U Withdrawn - After Issue CN204755626U (en) | 2015-05-20 | 2015-05-20 | Bloated axle of machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204755626U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819217A (en) * | 2015-05-20 | 2015-08-05 | 河北工业大学 | Mechanical expanding shaft |
| CN108527971A (en) * | 2018-06-30 | 2018-09-14 | 江山宏力产品设计有限公司 | A kind of letter box arrangement |
| CN110109016A (en) * | 2019-06-13 | 2019-08-09 | 重庆理工清研凌创测控科技有限公司 | New energy automobile motor test platform |
-
2015
- 2015-05-20 CN CN201520325566.1U patent/CN204755626U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819217A (en) * | 2015-05-20 | 2015-08-05 | 河北工业大学 | Mechanical expanding shaft |
| CN104819217B (en) * | 2015-05-20 | 2018-04-06 | 河北工业大学 | A kind of mechanical expansion shaft |
| CN108527971A (en) * | 2018-06-30 | 2018-09-14 | 江山宏力产品设计有限公司 | A kind of letter box arrangement |
| CN110109016A (en) * | 2019-06-13 | 2019-08-09 | 重庆理工清研凌创测控科技有限公司 | New energy automobile motor test platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151111 Effective date of abandoning: 20180406 |