CN2828357Y - Oblique-axis axial piston variable motro - Google Patents
Oblique-axis axial piston variable motro Download PDFInfo
- Publication number
- CN2828357Y CN2828357Y CN 200520132848 CN200520132848U CN2828357Y CN 2828357 Y CN2828357 Y CN 2828357Y CN 200520132848 CN200520132848 CN 200520132848 CN 200520132848 U CN200520132848 U CN 200520132848U CN 2828357 Y CN2828357 Y CN 2828357Y
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- plunger
- clino
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- type axial
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Abstract
The utility model relates to an oblique-axis axial piston variable motor. A main shaft has the structure that the radius thereof become larger in a multistage step state. A plunger forms a spherical cone structure, the front end of the plunger forms a spherical shape and a rod part at the rear part of the plunger forms a conical structure. An arc path of a rear cover is an arc which has a 132 mm long radius and a 19 mm high chordal height. Compared with the prior art, the oblique-axis axial piston variable motor of the utility model has a higher allowed rotation speed, a larger variation range of discharge capacity, and higher power weight ratio and the size of the main shaft and the size of a cylinder body are smaller. The total weight is reduced, and the arc path of the rear cover is lengthened to enlarge the tilt angle of the cylinder body. Meanwhile, both the maximum discharge capacity and the minimum discharge capacity can be regulated automatically, therefore the application range of the utility model is enlarged and the performance of the utility model is reinforced.
Description
Technical field
The utility model relates to a kind of clino-axis type axial plunger variable motor, particularly relates to a kind of elevator of engineering machinery and clino-axis type axial plunger variable motor of walking driving arrangement of being applicable to.
Background technique
The clino-axis type axial plunger variable motor of prior art adopts traditional rod-plunger by-product.It is mainly used on the hoist of 16 to 50 tons of vehicles, wide coverage, but when on hoister in large tonnage, using, because the cylinder body pivot angle is less, so axial dimension is longer, causes output power on the low side, maximum speed is on the low side, is difficult to satisfy the requirement that improves device efficiency at present.
This shows that above-mentioned existing clino-axis type axial plunger variable motor obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem that clino-axis type axial plunger variable motor exists, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of clino-axis type axial plunger variable motor of new structure, just become the current industry utmost point to need improved target.
Because the defective that above-mentioned existing clino-axis type axial plunger variable motor exists, the design people is based on being engaged in this type of product specification manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of clino-axis type axial plunger variable motor of new structure, can improve general existing clino-axis type axial plunger variable motor, make it have more practicability.Through constantly research, design, and after studying sample and improvement repeatedly, create the utility model that has practical value finally.
Summary of the invention
The purpose of this utility model is, overcome the defective that existing clino-axis type axial plunger variable motor exists, and provide a kind of clino-axis type axial plunger variable motor of new structure, technical problem to be solved is to make it have higher permission rotating speed, bigger displacement variation scope and higher power-weight ratio, thereby is suitable for practicality more.
Another purpose of the present utility model is, a kind of clino-axis type axial plunger variable motor is provided, technical problem to be solved is to make its main shaft and cylinder body littler than the volume of prior art, alleviated overall weight, and the arc road of lengthening bonnet, the cylinder body pivot angle is increased, and maximum simultaneously, minimum injection rate all can be adjusted voluntarily, thereby be suitable for practicality more.
The purpose of this utility model and to solve its technical problem be to adopt following technological scheme to realize.According to a kind of clino-axis type axial plunger variable motor that the utility model proposes, it comprises: housing; Bonnet is fixedly set in the housing rear portion, and this bonnet front portion is provided with the arc road; The variable piston is arranged at bonnet inside, can move up and down; Finger fixedly is " T " font structure with above-mentioned variable piston, and is fixedly set in the variable lower part of piston; Oil distribution casing, end face is set to the corresponding cambered surface in arc road with above-mentioned bonnet thereafter, and front-end face is set to sphere; Cylinder body, end face is set to and the corresponding sphere of the sphere of above-mentioned oil distribution casing front end thereafter, and its front-end face is provided with most with the equidistant plunger hole of arranging of circumferencial direction, and is provided with central shaft hole at the shaft core position of above-mentioned cylinder body; Central shaft, its rear portion is inserted in above-mentioned central shaft hole; Belleville spring is arranged between the bottom of the central shaft hole of cylinder body and central shaft; A most plunger are inserted in the plunger hole of above-mentioned cylinder body; Main shaft, the position in its axle center, bottom surface are provided with the ball-and-socket hinged with above-mentioned central shaft, and are provided with ball-and-socket identical with an above-mentioned majority plunger quantity and the hinged above-mentioned plunger of difference front portion; And bearing pack, be installed between above-mentioned main shaft and the housing, in this clino-axis type axial plunger variable motor: above-mentioned main shaft, it is the structure setting that is multistage stepped increase with radius from front to back; And above-mentioned bearing pack comprises: the cylinder rolling bearing is arranged at the interior forward end of housing, supports main shaft; Cone rolling is arranged at the rear side of cylinder rolling bearing, and supports on the one-level that stepped multistage main shaft posterior radius that above-mentioned cylinder rolling bearing supported increases.
The purpose of this utility model and solve its technical problem and also can adopt following technical measures further to realize.
Aforesaid clino-axis type axial plunger variable motor, wherein said plunger are that its front end is set to sphere with the setting of sphere awl piston structure, and the bar portion of this sphere rear side is the structure of taper.
Aforesaid clino-axis type axial plunger variable motor, the arc road of wherein said bonnet are that radius is 132mm, and action is the arc of 19mm.
Aforesaid clino-axis type axial plunger variable motor, retaining ring is provided with the piston ring that makes cylinder body and plunger seal in the bar portion of wherein said plunger.
Aforesaid clino-axis type axial plunger variable motor, wherein said piston ring is to make with steel.
Aforesaid clino-axis type axial plunger variable motor, the quantity of wherein said plunger are 5 to 9.
Aforesaid clino-axis type axial plunger variable motor, the quantity of wherein said plunger is 7.
Aforesaid clino-axis type axial plunger variable motor is fixed with stop screw respectively at the upper/lower terminal of above-mentioned housing rear side, and this stop screw is fixed in oil distribution casing on the limit position of the upper and lower both sides in above-mentioned arc road, and is spacing to above-mentioned oil distribution casing.
Aforesaid clino-axis type axial plunger variable motor, the plunger hole of wherein said cylinder body and front end setting thereof is to be made with steel.
Via as can be known above-mentioned, the utility model relates to a kind of clino-axis type axial plunger variable motor, its main shaft is the structure setting that is multistage stepped increase with radius from front to back, plunger is with the setting of sphere awl piston structure, the front end that is plunger is set to sphere, the bar portion at plunger rear portion is the structure of taper, and the arc road of bonnet is that radius is 132mm, and action is the arc of 19mm.The utility model clino-axis type axial plunger variable motor has higher permission rotating speed, bigger displacement variation scope and higher power-weight ratio than prior art, its main shaft is littler than the volume of prior art with cylinder body, and alleviated overall weight, and the bonnet arc road of lengthening increases the cylinder body pivot angle, maximum simultaneously, minimum injection rate all can be adjusted voluntarily, and using scope expansion, the performance of product are strengthened.
By technique scheme, the utility model clino-axis type axial plunger variable motor has following advantage at least:
Angle of intersection excursion between main shaft of the present utility model and central shaft increases to 25 ° by 18 ° of prior art, reduces with the overall dimension of displacement motor, and power-weight ratio increases, and its maximum pump discharge can reach 125mL/r; Bearing of the present utility model adopts big cone angle tapered roller bearing, and improve projected life; In addition, plunger adopts piston ring to seal firmly, simplifies the prior art constructions level, makes to leak to reduce, and heat-resisting, impact resistance is strong, the friction pair area significantly reduces, and has reduced the generation of unnecessary heat, improve mechanical efficiency, reduced noise, allowed rotating speed to increase simultaneously.
Main shaft of the present utility model is littler than the volume of prior art with cylinder body, thereby has alleviated overall weight, makes power-weight ratio improve 30%, and axially size shortening 20% of back is installed, and noise descends 5%; Original main shaft is a latus rectum, make bearing relatively more difficult when assembling, and main shaft of the present utility model is stepped, is easy to the assembling of bearing, and bearing structure strengthens bearing capacity; In addition, with prior art adopt the rod-plunger pair plunger be not easy to realize that higher rotation speed compares, and plunger of the present utility model has adopted spherical awl plunger, and cylinder body is the steel surface with the surface that plunger forms friction pair, thus the realization high rotational speed.The utility model has reached and has solved that prior art discharge capacity scope is less than normal, output power is on the low side, starting torque is little and the effect of problem such as maximum speed is on the low side.
In sum, the clino-axis type axial plunger variable motor of the utility model special construction, have above-mentioned many advantages and use value, and in like product, do not see have similar structural design to publish or use and really genus innovation, no matter it all has bigger improvement on product structure or function, have large improvement technically, and produced handy and practical effect, and more existing clino-axis type axial plunger variable motor has the multinomial effect of enhancement, thereby be suitable for practicality more, and have the extensive value of industry, really be a novelty, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the structural representation of the utility model clino-axis type axial plunger variable motor.
1: housing 2: main shaft
3: cylinder body 4: bonnet
5: oil distribution casing 6: the variable piston
7: cylinder rolling bearing 8: cone rolling
9: plunger 10: central shaft
11: finger 12: the control spool
13: belleville spring 14: adjust spring
α: range of variables (pivot angle)
Embodiment
For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to its embodiment of clino-axis type axial plunger variable motor, structure, feature and the effect thereof that the utility model proposes, describe in detail as after.
Explanation by embodiment, when can being to reach technological means that predetermined purpose takes and effect to get one more deeply and concrete understanding to the utility model, yet appended graphic only provide with reference to the usefulness of explanation, be not to be used for the utility model is limited.
Seeing also shown in Figure 1ly, is the structural representation of the utility model clino-axis type axial plunger variable motor.The clino-axis type axial plunger variable motor of the utility model preferred embodiment, it mainly comprises: housing 1; Bonnet 4 is fixedly set in housing 1 rear portion, and these bonnet 4 front portions are provided with the arc road; Variable piston 6 is arranged at bonnet 4 inside, can move up and down; Finger 11 fixedly is " T " font structure with above-mentioned variable piston 6, and is fixedly set in the bottom of variable piston 6; Oil distribution casing 5, end face is set to the corresponding cambered surface in arc road with above-mentioned bonnet 4 thereafter, and front-end face is set to sphere; Cylinder body 3, end face is set to the corresponding sphere of sphere with above-mentioned oil distribution casing 5 front ends thereafter, and its front-end face is provided with most with the equidistant plunger holes of arranging of circumferencial direction, and is provided with central shaft hole at the shaft core position of above-mentioned cylinder body 3; Central shaft 10, its rear portion is inserted in above-mentioned central shaft hole; Belleville spring 13 is arranged between the bottom of the central shaft hole of cylinder body 3 and central shaft 10; A most plunger 9 are inserted in the plunger hole of above-mentioned cylinder body 3; Main shaft 2, its radius are multistage stepped increase from front to back, and the position in the axle center, bottom surface of above-mentioned main shaft 2 is provided with the ball-and-socket hinged with above-mentioned central shaft 10, and are provided with identical with an above-mentioned majority plunger 9 quantity and the ball-and-sockets of hinged above-mentioned plunger 9 front portions respectively; Bearing pack is installed between above-mentioned main shaft 2 and the housing 1.
Wherein, be respectively equipped with in the bonnet 4 into and out of the oil circuit (not shown), should into and out of oil circuit respectively with oil distribution casing 5 in be provided with communicate into and out of oil circuit, and the in-lines in the oil distribution casing 5 communicate with plunger hole respectively in the mode with several angle; Be provided with the vent line that is connected in cylinder body 3, oil distribution casing 5 and the bonnet 4, hydraulic oil can be discharged bonnet 4 by this vent line.
Particularly, above-mentioned bearing pack comprises cylinder rolling bearing 7 and cone rolling 8.Cylinder rolling bearing 7 is provided with the interior forward end of housing 1, cone rolling 8 is arranged at the rear side of cylinder rolling bearing 7, and be supported on the one-level main shaft 2 of front side of the hinged bottom of stepped main shaft 2 and central shaft 10, promptly be supported on the one-level that stepped multistage main shaft posterior radius that above-mentioned cylinder rolling bearing supported increases.
The arc road of above-mentioned bonnet 4 is that radius is 132mm, and action is the circular arc of 19mm.Upper/lower terminal at above-mentioned housing 1 rear side is fixed with stop screw respectively, and this stop screw is fixed in oil distribution casing 5 on the limit position of the upper and lower both sides in above-mentioned arc road, and is spacing to above-mentioned oil distribution casing 5.
Above-mentioned plunger 9 is that its front end is set to sphere with the setting of sphere awl piston structure, and the bar portion of this sphere rear side is the structure of taper.Retaining ring is provided with piston ring in the bar portion of above-mentioned plunger 9, and this piston ring is to make with steel, makes cylinder body 3 and plunger 9 sealings.The plunger hole of above-mentioned cylinder body 4 and front end setting thereof is to be made with steel.
Also be provided with in above-mentioned bonnet 4 and adjust spring 14, its two ends are provided in the upper end of inside bottom of above-mentioned bonnet 4 and the lower end of above-mentioned finger 11 rear sides respectively.
The quantity of above-mentioned plunger 9 is 5 to 9, and is advisable to be provided with 7.
According to said structure, the working procedure of the utility model clino-axis type axial plunger variable motor is as follows:
At first in the in-line of bonnet 4, feed pressure oil, behind the in-line of the oil distribution casing 5 that pressure oil communicates by the in-line with bonnet 4, in the plunger hole in the oblique feeding cylinder body 3, make the spherical tapered rod portion that bores plunger 9 be subjected to the effect of hydraulic oil, to-and-fro motion in the cylindrical pillars consent that in cylinder body 3, is provided with, and to drive cylinder body 3 serve as that axle rotates with central shaft 10, and simultaneously, the spherical head drive main shaft 2 of spherical awl plunger 9 rotates under the support of bearing pack.Hydraulic oil is discharged bonnet 4 through vent line.
When the user needs the utility model clino-axis type axial plunger variable motor backward rotation, only need hydraulic oil is imported vent line, and its opposite direction with above-mentioned oil circuit is exerted pressure, and in in-line, discharge and to realize.The set-up mode and the structure of above-mentioned oil circuit are all prior art, so do not repeat them here.
The utility model clino-axis type axial plunger variable motor reaches the position of the finger 11 of fixedlying connected with it by change variable piston 6, thereby changes the discharge capacity of said motor.The change in location of above-mentioned variable piston 6 is regulated by pressure oil and adjustment spring 14, and its structure and method are prior art, so do not repeat them here.Specifically, the utility model is than prior art, the arc road of bonnet 4 that extended, thus make cylinder body 3 adjustable pendulum angle α on the arc road become big, and then reach above-mentioned effect of the present utility model, and make its maximum pump discharge can reach 125mL/r.Above-mentioned plunger 9 adopts spherical awl plunger, and its bar portion is a cone structure, compares the column construction of prior art, has reduced friction area, can realize higher rotating speed.Above-mentionedly be multistage stair-stepping main shaft 2 and be easy to assembling, and bearing capacity is big than the column casing shape main shaft of prior art.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art are not in breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (9)
1, a kind of clino-axis type axial plunger variable motor, it comprises: housing; Bonnet is fixedly set in the housing rear portion, and this bonnet front portion is provided with the arc road; The variable piston is arranged at bonnet inside, can move up and down; Pull pin, fixedly be " T " font structure with above-mentioned variable piston, and be fixedly set in the variable lower part of piston; Oil distribution casing, end face is set to the corresponding cambered surface in arc road with above-mentioned bonnet thereafter, and front-end face is set to sphere; Cylinder body, end face is set to and the corresponding sphere of the sphere of above-mentioned oil distribution casing front end thereafter, and its front-end face is provided with most with the equidistant plunger hole of arranging of circumferencial direction, and is provided with central shaft hole at the shaft core position of above-mentioned cylinder body; Central shaft, its rear portion is inserted in above-mentioned central shaft hole; Belleville spring is arranged between the bottom of the central shaft hole of cylinder body and central shaft; A most plunger are inserted in the plunger hole of above-mentioned cylinder body; Main shaft, the position in its axle center, bottom surface are provided with the ball-and-socket hinged with above-mentioned central shaft, and are provided with ball-and-socket identical with an above-mentioned majority plunger quantity and the hinged above-mentioned plunger of difference front portion; And bearing pack, being installed between above-mentioned main shaft and the housing, this clino-axis type axial plunger variable motor is characterised in that:
Above-mentioned main shaft, it is the structure setting that is multistage stepped increase with radius from front to back; And
Above-mentioned bearing pack comprises: the cylinder rolling bearing is arranged at the interior forward end of housing, supports main shaft; Cone rolling is arranged at the rear side of cylinder rolling bearing, and supports on the one-level that stepped multistage main shaft posterior radius that above-mentioned cylinder rolling bearing supported increases.
2, clino-axis type axial plunger variable motor according to claim 1 is characterized in that wherein said plunger is that its front end is set to sphere with the setting of sphere awl piston structure, and the bar portion of this sphere rear side is the structure of taper.
3, clino-axis type axial plunger variable motor according to claim 1, the arc road that it is characterized in that wherein said bonnet are that radius is 132mm, and action is the arc of 19mm.
4, clino-axis type axial plunger variable motor according to claim 2 is characterized in that retaining ring is provided with the piston ring that makes cylinder body and plunger seal in the bar portion of wherein said plunger.
5, clino-axis type axial plunger variable motor according to claim 4 is characterized in that wherein said piston ring is to make with steel.
6, clino-axis type axial plunger variable motor according to claim 1 and 2, the quantity that it is characterized in that wherein said plunger is 5 to 9.
7, clino-axis type axial plunger variable motor according to claim 6, the quantity that it is characterized in that wherein said plunger is 7.
8, according to claim 1 or 3 described clino-axis type axial plunger variable motors, it is characterized in that being fixed with stop screw respectively at the upper/lower terminal of above-mentioned housing rear side, this stop screw is fixed in oil distribution casing on the limit position of the upper and lower both sides in above-mentioned arc road, and is spacing to above-mentioned oil distribution casing.
9, clino-axis type axial plunger variable motor according to claim 1 is characterized in that the plunger hole of wherein said cylinder body and front end setting thereof is to be made with steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520132848 CN2828357Y (en) | 2005-11-14 | 2005-11-14 | Oblique-axis axial piston variable motro |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520132848 CN2828357Y (en) | 2005-11-14 | 2005-11-14 | Oblique-axis axial piston variable motro |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2828357Y true CN2828357Y (en) | 2006-10-18 |
Family
ID=37079913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520132848 Expired - Lifetime CN2828357Y (en) | 2005-11-14 | 2005-11-14 | Oblique-axis axial piston variable motro |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2828357Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020131A (en) * | 2014-04-24 | 2015-11-04 | 北京华德液压工业集团有限责任公司 | Axial plunger pump with impeller structure cylinder |
| CN113833739A (en) * | 2021-09-28 | 2021-12-24 | 杭州力龙液压有限公司 | Transmission shaft, hydraulic motor and engineering machinery |
| WO2022056738A1 (en) * | 2020-09-16 | 2022-03-24 | 北京玖鼎力源科技有限公司 | Bent axis plunger-type variable hydraulic motor pump |
-
2005
- 2005-11-14 CN CN 200520132848 patent/CN2828357Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020131A (en) * | 2014-04-24 | 2015-11-04 | 北京华德液压工业集团有限责任公司 | Axial plunger pump with impeller structure cylinder |
| WO2022056738A1 (en) * | 2020-09-16 | 2022-03-24 | 北京玖鼎力源科技有限公司 | Bent axis plunger-type variable hydraulic motor pump |
| CN113833739A (en) * | 2021-09-28 | 2021-12-24 | 杭州力龙液压有限公司 | Transmission shaft, hydraulic motor and engineering machinery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING HUADE HYDRAULIC INDUSTRIAL GROUP CO., LTD. Free format text: FORMER OWNER: TECHNOLOGY CENTER, HUADE HYDRAULIC INDUSTRIAL GROUP CO., LTD., BEIJING Effective date: 20100826 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100176 NO.5, TONGJI NORTH ROAD, ECONOMIC AND TECHNOLOGICAL DEVELOPMENT ZONE, BEIJING TO: 100176 NO.5, TONGJI NORTH ROAD, BEIJING ECONOMIC AND TECHNOLOGICAL DEVELOPMENT ZONE, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100826 Address after: 100176 No. 5 Tongji North Road, Beijing economic and Technological Development Zone, Beijing Patentee after: Beijing Huade Hydraulic Industrial Group Co., Ltd. Address before: 100176 No. 5 Tongji North Road, Beijing economic and Technological Development Zone Patentee before: Technology Center of Beijing Huade Hydraulic Industrial Group Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20061018 |
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| EXPY | Termination of patent right or utility model |