CN204226100U - Flexible tilt cylinder type hydraulic motor - Google Patents
Flexible tilt cylinder type hydraulic motor Download PDFInfo
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- CN204226100U CN204226100U CN201420615524.7U CN201420615524U CN204226100U CN 204226100 U CN204226100 U CN 204226100U CN 201420615524 U CN201420615524 U CN 201420615524U CN 204226100 U CN204226100 U CN 204226100U
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Abstract
The utility model relates to a kind of flexible tilt cylinder type hydraulic motor, comprises housing, protecgulum, eccentric shaft, oil cylinder, piston, cylinder cap, selfaligning roller bearing, spring, spring seat, transmission shaft, oil distribution mechanism etc.; Cylinder cap and eccentric shaft all arrange a sphere, one group oil cylinder piston assembly is all set between cylinder cap sphere and eccentric shaft sphere, piston, oil cylinder upper and lower end arrange a sphere respectively, by the spring being arranged at oil cylinder piston inside, oil cylinder, piston are pressed in eccentric shaft sphere and cylinder cap sphere respectively, thus make oil cylinder piston adjust position voluntarily, hydraulic oil is effectively sealed; The structures such as the utility model eliminates retaining ring of the prior art, spring cup, peg ring, improve motor mechanical efficiency, reduce motor failure rate and manufacture cost.
Description
Technical field
The utility model relates to hydraulic element field, specifically refers to a kind of flexible tilt cylinder type hydraulic motor.
Background technique
To have energy density high because of it for low speed high torque hydraulic motor, and low-speed stability is good, and the advantages such as continuously variable are widely used in plastics machinery, ship machinery, the fields such as mining machinery.
Fig. 1 is the flexible tilt cylinder type hydraulic motor that on market, technology is comparatively advanced, comprises two retaining rings 1001,1002 be stuck on oil cylinder 2 groove 2001, oil cylinder 2, piston 3, spring 4, spring cup 5, circlip 6, peg ring 7, peg 8, locking nut 9, spring seat 10; This flexible tilt cylinder type hydraulic motor complex structure, part heavy remaining (unnecessary).
Summary of the invention
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art, and provides a kind of the utility model to provide a kind of structure simple, and efficiency is high, the flexible tilt cylinder type hydraulic motor of good reliability.
The utility model solves the technological scheme that its technical problem adopts:
A kind of flexible tilt cylinder type hydraulic motor, comprise housing, housing front end and back end is provided with protecgulum and bonnet, eccentric shaft is rotatably connected to by the fore bearing in protecgulum and the rear bearing in housing in housing, the output terminal of eccentric shaft extends protecgulum, the eccentric wheel of eccentric shaft is provided with eccentric spherical, radial circumference direction along eccentric shaft on housing is provided with odd number cylinder cap, between corresponding each cylinder cap and eccentric spherical, piston cylinder assembly is installed in housing, in bonnet, oil distribution mechanism is installed, described piston cylinder assembly comprises cylinder body, in cylinder body, flip sleeve is connected to piston, cavity is formed in piston, cavity with join oil distribution mechanism and be communicated with, oil distribution mechanism is made to import in cavity by high pressure oil, it is characterized in that,
Corresponding piston protuberance is provided with piston sphere projection near outside, piston sphere projection is provided with piston transition plane and piston sphere from outside to inside, and piston sphere and cylinder cap sphere form sphere-contact;
Cylinder body near eccentric spherical is provided with cylinder body protuberance, and be provided with cylinder body cushion cap in the cavity inside cylinder body protuberance, be provided with and be provided with cylinder body transition plane and cylinder body sphere from outside to inside outside cylinder body protuberance, cylinder body sphere and eccentric spherical form sphere-contact;
Be provided with spring in cavity, spring one end and piston cushion cap elasticity offset, and piston sphere and cylinder cap sphere are close to, and the spring the other end is offseted by spring seat and cylinder body cushion cap, and cylinder body sphere and eccentric spherical elasticity are offseted.
During work, high pressure oil imports cavity by pipeline, with spring acting in conjunction, cylinder body and piston is pressed in respectively on eccentric spherical and cylinder cap sphere, effectively seals system high pressure oil.
Fore bearing (selfaligning roller bearing) on eccentric shaft and protecgulum is rotationally connected, and make eccentric spherical be positioned motor neutral position, and the eccentric spherical centre of sphere and the odd number cylinder cap sphere centre of sphere is in same plane;
Cylinder body and piston respectively with eccentric spherical and cylinder cap sphere-contact, locate voluntarily, and do flexible oscillating motion along cylinder cap and eccentric spherical centre of sphere line respectively, when namely working, piston sphere can along cylinder cap oscillating motion, and cylinder body sphere and eccentric spherical do oscillating motion.
Described cylinder body is pressed in eccentric spherical by means of only the effect of spring and high pressure oil, and without any external restraint mechanism and heavy remaining part, save cost, mechanical efficiency is high, the source of trouble is little, alleviates motor weight.
The utility model can also adopt following technical measures to solve:
Cylinder body sphere near outside is provided with the cylinder body sphere A section contacted with eccentric spherical, and cylinder body sphere A section accounts for 1/2 ~ 2/3 of cylinder body area of spherical surface; Preferably 3/5.
Cylinder body sphere sphere diameter 0.2 ~ 0.4mm less of eccentric spherical sphere diameter; Preferably 0.3mm.
Form angle m between the tangent extending line of the ring surface of contact outer edge that cylinder body sphere and eccentric spherical form and the elongation line of cylinder body transition plane, the angle of m is 28 ° ~ 33 °, preferably 30 °.
Project the in the horizontal plane diameter of a circle D1 of gained of the outermost end of cylinder body sphere A section to project the large 0.5 ~ 1mm of the diameter of a circle D2 of gained in the horizontal plane than the fitting surface between cylinder body and piston.
Piston sphere near outside is provided with the piston sphere B section with cylinder cap sphere-contact, and piston sphere B section accounts for 3/5 ~ 3/4 of piston area of spherical surface.
Piston sphere sphere diameter 0.1 ~ 0.3mm less of cylinder cap sphere sphere diameter; Preferably 0.2mm.
Form angle n between the outer edge tangent extending line of the ring surface of contact that piston sphere and cylinder cap sphere form and the elongation line of piston transition plane, the angle of angle n is 28 ° ~ 33 °, preferably 30 °.
In flexible tilt cylinder type hydraulic motor, the processing method of eccentric spherical, is characterized in that, described eccentric spherical is successively by modified, rough turn, and mid frequency induction hardening, corase grind, half fine grinding, glossing, forms that macroscopic view is smooth, the sphere of the recessed sky of microcosmic band.
Described eccentric spherical is successively sequentially through modified, rough turn, after mid frequency induction hardening, successively through corase grind and half fine grinding technology on grinding machine, obtain the surface of degree of finish Ra0.6 ~ Ra0.8, again through glossing, surperficial crest sharp parts is removed, forms macroscopic view smooth, the sphere of the recessed sky of microcosmic band, be conducive to storing lubricant oil, improve sphere wear resistance.
The beneficial effects of the utility model are:
Compared with prior art, the utility model has the advantage of and eliminate retaining ring, check ring, peg Huan Dengchenyu mechanism; Cylinder body and piston in combination are pressed in eccentric spherical and cylinder cap sphere by spring and high pressure oil effect in addition, and under eccentric spherical and cylinder cap sphere reaction force, carry out auto-optimization adjustment locate, make cylinder body, piston along the cylinder cap sphere centre of sphere and eccentric spherical centre of sphere line fore and aft motion, thus do not produce cross component force, avoid both eccentric wears, effectively improve motor volumetric efficiency; Cylinder body, piston in combination adopt two location at spherical surface structure, its position adjusted by cylinder body sphere, piston sphere, cylinder cap sphere and eccentric spherical completely, eliminate prior art peripheral constraint mechanism, because of damage phenomenon that double constraints causes when avoiding work, structure is simplified, the motor failure rate effectively reduced and manufacture cost; Eccentric spherical, by process optimization, obtains the surface having and store lubricant oil function, improves wear resistance.
Accompanying drawing explanation
Fig. 1 is the longitudinal sectional view of prior art oil hydraulic motor.
Fig. 2 is the longitudinal sectional view of the utility model oil hydraulic motor.
Fig. 3 is the transverse sectional view of the utility model oil hydraulic motor.
Fig. 4 is the structural representation of the utility model oil hydraulic motor.
Fig. 5 is the oil cylinder piston group operating diagram of the utility model oil hydraulic motor.
Fig. 6 is oil cylinder and the eccentric shaft schematic diagram of the utility model oil hydraulic motor.
Fig. 7 is piston and the cylinder cap schematic diagram of this bright oil hydraulic motor.
Fig. 8 is the partial enlarged drawing at e place in the utility model Fig. 6.
Fig. 9 is the partial enlarged drawing at f place in the utility model Fig. 7.
Figure 10 is the utility model cylinder body sphere and cylndrical surface scale diagrams.
Figure 11 is the eccentric spherical processing rear surface pattern schematic diagram of prior art.
Figure 12 is the utility model eccentric spherical polishing rear surface pattern schematic diagram.
Figure 13 makes originally to be the partial enlarged drawing of cylinder body protuberance in model utility.
Figure 14 makes originally to be the partial enlarged drawing of piston sphere projection in model utility.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As Fig. 2 to Figure 10, and shown in Figure 12 to Figure 14, a kind of flexible tilt cylinder type hydraulic motor, comprise housing 1, housing 1 front end and back end is provided with protecgulum 2 and bonnet 3, eccentric shaft 4 is rotatably connected to by the fore bearing 201 in protecgulum 2 and the rear bearing 301 in housing 1 in housing 1, the output terminal 401 of eccentric shaft 4 extends protecgulum 2, the eccentric wheel 402 of eccentric shaft 4 is provided with eccentric spherical 402-1, radial circumference direction along eccentric shaft 4 on housing 1 is provided with odd number cylinder cap 5, between corresponding each cylinder cap 5 and eccentric spherical 402-1, piston cylinder assembly is installed in housing 1, oil distribution mechanism 6 is installed in bonnet 3, described piston cylinder assembly comprises cylinder body 7, in cylinder body 7, flip sleeve is connected to piston 8, cavity 9 is formed in piston 8, cavity 9 with join oil distribution mechanism 6 and be communicated with, high pressure oil is imported in cavity 9 by oil distribution mechanism 6, it is characterized in that,
Piston 8 inside cylinder cap 5 is provided with piston protuberance 801, piston cushion cap 802 is provided with in cavity 9 inside piston protuberance 801, cylinder cap sphere 501 is provided with inside cylinder cap 5, corresponding piston protuberance 801 is provided with piston sphere projection 804 near outside, piston sphere projection 804 is provided with piston transition plane 805 and piston sphere 803 from outside to inside, and piston sphere 803 and cylinder cap sphere 501 form sphere-contact;
Cylinder body 7 near eccentric spherical 402-1 is provided with cylinder body protuberance 701, cylinder body cushion cap 702 is provided with in cavity 9 inside cylinder body protuberance 701, be provided with outside cylinder body protuberance 701 and be provided with cylinder body transition plane 704 and cylinder body sphere 703 from outside to inside, cylinder body sphere 703 and eccentric spherical 402-1 form sphere-contact;
Spring 10 is installed in cavity 9, spring 10 one end and piston cushion cap 802 elasticity offset, piston sphere 803 and cylinder cap sphere 501 are close to, and spring 10 the other end is offseted by spring seat 11 and cylinder body cushion cap 702, and cylinder body sphere 703 and eccentric spherical 402-1 elasticity are offseted.
During work, high pressure oil imports cavity 9 by pipeline 12, with spring 10 acting in conjunction, cylinder body 7 and piston 8 is pressed in respectively on eccentric spherical 402-1 and cylinder cap sphere 501, effectively seals system high pressure oil.
Eccentric shaft 4 and the fore bearing 201(selfaligning roller bearing on protecgulum 2) be rotationally connected, make eccentric spherical 402-1 be positioned motor neutral position, and the eccentric spherical 402-1 centre of sphere and odd number cylinder cap sphere 501 centre of sphere are in same plane;
Cylinder body 7 contacts with cylinder cap sphere 501 with eccentric spherical 402-1 respectively with piston 8, locate voluntarily, and do flexible oscillating motion along cylinder cap 5 and eccentric spherical 402-1 centre of sphere line respectively, when namely working, piston sphere 803 can along cylinder cap 5 oscillating motion, and cylinder body sphere 703 and eccentric spherical 402-1 do oscillating motion.
Described cylinder body 7 is pressed in eccentric spherical 402-1 by means of only the effect of bullet 10 spring and high pressure oil, and without any external restraint mechanism and heavy remaining part, save cost, mechanical efficiency is high, the source of trouble is little, alleviates motor weight.
Piston cylinder assembly upper and lower end face is set to sphere, and sphere diameter size is in the same size with the sphere sphere diameter that arranges on eccentric wheel 402 and cylinder cap 5 respectively.
The eccentric wheel 402 of eccentric shaft 4 arranges eccentric spherical 402-1, eccentric spherical 402-1 is through modified, rough turn, mid frequency induction hardening, corase grind, half fine grinding, polishing forms, and the eccentric shaft 4 of eccentric wheel 402 both sides respectively arranges a shaft shoulder 403, by being arranged at housing 1 and the fore bearing 201 on protecgulum 2 and bonnet 3, rear bearing 202(selfaligning roller bearing) eccentric wheel 402 is positioned motor neutral position, cylinder cap sphere 501 centre of sphere set inside all cylinder caps 5 and the eccentric spherical 402-1 centre of sphere set by eccentric shaft 4 all in the same plane, the cylinder body 7 that guarantee is between the two and piston 8 axial stability at work, motor can also be made in addition to bear certain axial force.
When motor operations, cylinder body 7 and piston 8 will closely compress eccentric spherical 402-1 and cylinder cap sphere 501 respectively as final location under the effect of high pressure oil, no matter this structure is radial position or axial position, compress with high pressure oil by the spring 10 being in cavity 9, and by two spheric structure adjustment, make its position can reach the optimized position of design, eliminate outside constraint mechanism, avoid the stuck and problems such as infringement of the part caused because of double constraints in work, motor configuration obtains larger simplification, effectively reduce motor processing cost and rate of fault, improve the stability of motor.
Cylinder body 7 and eccentric wheel 402 contact position are designed to and eccentric spherical 402-1 sphere diameter spheric structure of the same size (cylinder body sphere 703), cylinder body sphere 703 forms through precision grinding, it is initially pressed on eccentric spherical 402-1 by spring 10 by cylinder body 7, work mesohigh oil will compress cylinder body, it is made to be pressed in eccentric spherical 402-1, one active force is produced to eccentric spherical 402-1, under the reaction force of eccentric spherical 402-1, cylinder body 7 will adjust position voluntarily, make its cylinder body sphere 703 compress laminating completely with eccentric spherical 402-1.
Contact between piston sphere 803 with cylinder cap sphere 501 is consistent with the effect that eccentric spherical 402-1 contacts with cylinder body 7 with working principle, and the beneficial effect obtained is also identical, is not described in detail in this.
As the present embodiment more particular embodiment:
Cylinder body sphere 703 near outside is provided with the cylinder body sphere A section contacted with eccentric spherical 402-1, and cylinder body sphere A section accounts for 1/2 ~ 2/3 of cylinder body sphere 703 area; Preferably 3/5.
Cylinder body sphere 703 sphere diameter 0.2 ~ 0.4mm less of eccentric spherical 402-1 sphere diameter; Preferably 0.3mm.
The outward edge (cylinder body sphere A section) in the close outside of cylinder body sphere 703 is adopted contact type structure with eccentric spherical 402-1: cylinder body sphere 703 is basically identical with eccentric spherical 402-1 size.
The beneficial effect of this structure is adopted to be cylinder body 7 and the sphere outward edge of the actual contact position of eccentric spherical 402-1 at cylinder body sphere 703, and cylinder body sphere A section area accounts for 1/2 ~ 2/3 of the area of spherical surface set by cylinder body sphere 703, preferably 3/5, the reason of outside edge contacts structure is adopted to be can effectively reduce to optimize its PV value, both effective sealing can be carried out to high pressure oil, also oil film can be formed at surface of contact, the wearing and tearing of great reduction cylinder body and eccentric spherical 402-1 and frictional force, improve volumetric efficiency and the working life of motor.
Form angle m between the tangent extending line of the ring surface of contact outer edge that cylinder body sphere 703 and eccentric spherical 402-1 form and the elongation line of cylinder body transition plane 704, the angle of m is 28 ° ~ 33 °, preferably 30 °.
The size of tilt angle m have impact on the size of eccentric spherical 402-1 to cylinder body 7 axial reaction force, axial reaction force is the foundation to the adjustment of cylinder body 7 position, tilt angle m is larger, and axial thrust load is larger, cylinder body 7 and eccentric shaft sphere 402-1 are more tending towards being adjacent to completely, but excessive tilt angle m will lead cylinder body 7 diameter or length increases, cylinder body 7 and eccentric shaft 4 effectively area of contact diminish, easily there is the instability of work or easily wear and tear in motor, therefore by motor operations being made more to tend towards stability to the optimization of tilt angle m, the life-span is longer.
Project the in the horizontal plane diameter of a circle D1 of gained of the outermost end of cylinder body sphere A section to project the large 0.5 ~ 1mm of the diameter of a circle D2 of gained in the horizontal plane than the fitting surface between cylinder body and piston.
Piston sphere 803 near outside is provided with the piston sphere B section contacted with cylinder cap sphere 501, and piston sphere B section accounts for 3/5 ~ 3/4 of piston sphere 803 area.
Piston sphere 803 sphere diameter 0.1 ~ 0.3mm less of cylinder cap sphere 703 sphere diameter; Preferably 0.2mm.
Form angle n between the outer edge tangent extending line of the ring surface of contact (piston sphere B section) that piston sphere 803 and cylinder cap sphere 501 form and the elongation line of piston transition plane 805, the angle of angle n is 28 ° ~ 33 °, preferably 30 °; The effect of tilt angle n is similar to the effect of tilt angle m, is not described in detail in this, equally can by motor operations being made more to tend towards stability to the optimization of tilt angle n, and the life-span is longer.
The processing method of eccentric spherical in flexible tilt cylinder type hydraulic motor, described eccentric spherical is successively by modified, rough turn, and mid frequency induction hardening, corase grind, half fine grinding, glossing, forms that macroscopic view is smooth, the sphere of the recessed sky of microcosmic band.
Described eccentric spherical 402-1 is successively sequentially through modified, rough turn, after mid frequency induction hardening, successively through corase grind and half fine grinding technology on grinding machine, obtain the surface of degree of finish Ra0.6 ~ Ra0.8, again through glossing, surperficial crest sharp parts is removed, form macroscopic view smooth, the sphere of the recessed sky of microcosmic band, as shown in figure 12, be conducive to storing lubricant oil, improve sphere wear resistance.
The utility model is the processing method of a kind of flexible tilt cylinder type hydraulic motor and eccentric spherical thereof, its working principle is: when motor is in original state, cylinder body 7 and piston 8 are combined through the spring 10 that is arranged at its inside and spring seat 11 and are initially pressed in the centre of sphere and are in conplane eccentric spherical 402-1 and cylinder cap sphere 501, ensure that the sealing of cavity 9, the initial height force feed handoff procedure that to compress when design ensure that work is to the sealability of system high pressure oil in addition, after working procedure mesohigh oil enters cavity 9, high pressure oil to be compressed by being arranged at cylinder body cushion cap 702 on cylinder body 7 by spring 10 and to force cylinder body sphere 703 to compress eccentric spherical 402-1, simultaneously also piston 8 is forced to compress cylinder cap sphere 501 compression, because both seal faces are sphere, therefore eccentric spherical 402-1 and cylinder cap sphere 501 will produce reaction cross component force to it, both spheres contacted with each other are forced more to be tending towards being adjacent to completely, adopt outside edge contacts sealed construction simultaneously, it is made to reach the good result of sealing system high pressure oil, reduce frictional force and wearing and tearing, the high pressure oil column (filling the state of high pressure oil in cavity) of good seal will directly act on eccentric spherical 402-1 and promote eccentric shaft rotation in addition, and mechanical efficiency will be highly improved, cylinder body 7 and piston 8 combine and adopt two location at spherical surface structure, cylinder body sphere 703 and piston sphere 803 position adjusted respectively by eccentric spherical 402-1 and cylinder cap sphere 501, eliminate external constraint mechanism, avoid the damage phenomenon because causing because of double constraints in work, structure is simplified, and effectively reduces motor failure rate and manufacture cost.
Above-described specific embodiment, is only the utility model preferred embodiment, such as according to the equivalent arrangements that the utility model claim is done, all should be technology of the present utility model and contained.
Claims (8)
1. a flexible tilt cylinder type hydraulic motor, comprise housing, housing front end and back end is provided with protecgulum and bonnet, eccentric shaft is rotatably connected to by the fore bearing in protecgulum and the rear bearing in housing in housing, the output terminal of eccentric shaft extends protecgulum, the eccentric wheel of eccentric shaft is provided with eccentric spherical, radial circumference direction along eccentric shaft on housing is provided with odd number cylinder cap, between corresponding each cylinder cap and eccentric spherical, piston cylinder assembly is installed in housing, in bonnet, oil distribution mechanism is installed, described piston cylinder assembly comprises cylinder body, in cylinder body, flip sleeve is connected to piston, cavity is formed in piston, cavity with join oil distribution mechanism and be communicated with, oil distribution mechanism is made to import in cavity by high pressure oil, it is characterized in that,
Corresponding piston protuberance is provided with piston sphere projection near outside, piston sphere projection is provided with piston transition plane and piston sphere from outside to inside, and piston sphere and cylinder cap sphere form sphere-contact;
Cylinder body near eccentric spherical is provided with cylinder body protuberance, and be provided with cylinder body cushion cap in the cavity inside cylinder body protuberance, be provided with and be provided with cylinder body transition plane and cylinder body sphere from outside to inside outside cylinder body protuberance, cylinder body sphere and eccentric spherical form sphere-contact;
Be provided with spring in cavity, spring one end and piston cushion cap elasticity offset, and piston sphere and cylinder cap sphere are close to, and the spring the other end is offseted by spring seat and cylinder body cushion cap, and cylinder body sphere and eccentric spherical elasticity are offseted.
2. stretch tilt cylinder type hydraulic motor according to claim 1, and it is characterized in that, the cylinder body sphere near outside is provided with the cylinder body sphere A section contacted with eccentric spherical, and cylinder body sphere A section accounts for 1/2 ~ 2/3 of cylinder body area of spherical surface.
3. stretch tilt cylinder type hydraulic motor according to claim 1, it is characterized in that, cylinder body sphere sphere diameter 0.2 ~ 0.4mm less of eccentric spherical sphere diameter.
4. stretch tilt cylinder type hydraulic motor according to claim 2, it is characterized in that, form angle m between the tangent extending line of the ring surface of contact outer edge that cylinder body sphere and eccentric spherical form and the elongation line of cylinder body transition plane, the angle of m is 28 ° ~ 33 °.
5. stretch tilt cylinder type hydraulic motor according to claim 1, it is characterized in that, project the in the horizontal plane diameter of a circle D1 of gained of the outermost end of cylinder body sphere A section to project the large 0.5 ~ 1mm of the diameter of a circle D2 of gained in the horizontal plane than the fitting surface between cylinder body and piston.
6. stretch tilt cylinder type hydraulic motor according to claim 1, and it is characterized in that, the piston sphere near outside is provided with the piston sphere B section with cylinder cap sphere-contact, and piston sphere B section accounts for 3/5 ~ 3/4 of piston area of spherical surface.
7. stretch tilt cylinder type hydraulic motor according to claim 1, it is characterized in that, piston sphere sphere diameter 0.1 ~ 0.3mm less of cylinder cap sphere sphere diameter.
8. stretch tilt cylinder type hydraulic motor according to claim 1, it is characterized in that, form angle n between the outer edge tangent extending line of the ring surface of contact that piston sphere and cylinder cap sphere form and the elongation line of piston transition plane, the angle of angle n is 28 ° ~ 33 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420615524.7U CN204226100U (en) | 2014-10-23 | 2014-10-23 | Flexible tilt cylinder type hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420615524.7U CN204226100U (en) | 2014-10-23 | 2014-10-23 | Flexible tilt cylinder type hydraulic motor |
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| Publication Number | Publication Date |
|---|---|
| CN204226100U true CN204226100U (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420615524.7U Withdrawn - After Issue CN204226100U (en) | 2014-10-23 | 2014-10-23 | Flexible tilt cylinder type hydraulic motor |
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| CN (1) | CN204226100U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329217A (en) * | 2014-10-23 | 2015-02-04 | 佛山市顺德区中意液压有限公司 | Telescopic tilt cylinder type hydraulic motor and machining method of eccentric spherical surface of telescopic tilt cylinder type hydraulic motor |
-
2014
- 2014-10-23 CN CN201420615524.7U patent/CN204226100U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329217A (en) * | 2014-10-23 | 2015-02-04 | 佛山市顺德区中意液压有限公司 | Telescopic tilt cylinder type hydraulic motor and machining method of eccentric spherical surface of telescopic tilt cylinder type hydraulic motor |
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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 |
Granted publication date: 20150325 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |