CN202937417U - Oblique shaft type axial plunger pump/motor with novel-structure plunger - Google Patents

Oblique shaft type axial plunger pump/motor with novel-structure plunger Download PDF

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Publication number
CN202937417U
CN202937417U CN 201220640945 CN201220640945U CN202937417U CN 202937417 U CN202937417 U CN 202937417U CN 201220640945 CN201220640945 CN 201220640945 CN 201220640945 U CN201220640945 U CN 201220640945U CN 202937417 U CN202937417 U CN 202937417U
Authority
CN
China
Prior art keywords
plunger
main shaft
motor
section bar
cylinder body
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Withdrawn - After Issue
Application number
CN 201220640945
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Chinese (zh)
Inventor
周宇
焦玲
曹新凤
江浩
胡高见
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEIJING HUADE HYDRAULIC INDUSTRIAL GROUP Co Ltd
Original Assignee
BEIJING HUADE HYDRAULIC INDUSTRIAL GROUP Co Ltd
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Priority to CN 201220640945 priority Critical patent/CN202937417U/en
Application granted granted Critical
Publication of CN202937417U publication Critical patent/CN202937417U/en
Anticipated expiration legal-status Critical
Withdrawn - After Issue legal-status Critical Current

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Abstract

The utility model relates to an oblique shaft type axial plunger pump/motor with a novel-structure plunger. The oblique shaft type axial plunger pump/motor comprises a casing, a bearing cover, a spindle, the plunger, a cylinder body, a valve plate and a rear cover, wherein the plunger is inserted into a cylinder body hole of the cylinder body and is hinged with a ball socket on the spindle through a ball head at one end, and a cylindrical step structure is arranged on the ball head of the plunger. The oblique shaft type axial plunger pump/motor improves a structure of the ball head of the plunger, reduces vibration generated in a rotation process, reduces noise, improves efficiency and prolongs service life.

Description

A kind of angle type axial piston pump/motor with new structure plunger
Technical field
The utility model relates to hydraulic pressure, mechanical control technique field, relates to specifically a kind of angle type axial piston pump/motor, particularly relates to a kind of angle type axial piston pump/motor with new structure plunger of cylinder step.
Background technique
Angle type axial piston pump or motor are a kind of of axial piston pump or motor, and the axis of its main shaft and the spin axis of cylinder body be not on the same straight line, but in an angle.On function, it can also can be used as motor as pump.To have a volume little because of it for angle type axial piston pump, and frictional loss is little, and suction capacity is strong, and the starting efficiency advantages of higher is widely used in hydraulic system.
As shown in Figure 1, be the structural representation of existing a kind of angle type axial piston pump/motor.Existing angle type axial piston pump/motor mainly is comprised of bearing cap 100, main shaft 200, housing 300, plunger 400, cylinder body 500, thrust plate 600 and bonnet 700 etc.Wherein the spin axis shape of the axis of transmission main shaft 200 and cylinder body 500 in an angle, plunger 400 is contained in the cylinder bore of cylinder body 500, and the bulb by being positioned at the one end 410 is hinged with the ball-and-socket 210 on main shaft 200.When being moved to top dead center by lower dead center, obtain an oil suction stroke when plunger 400, fluid is inhaled in cylinder body 500 by the kidney-shaped window on inlet port and thrust plate 600.When being moved to lower dead center by top dead center, produce a force feed stroke when plunger 400, the fluid in the cylinder bore that riddles cylinder body 500 is discharged from through thrust plate 600 and oil outlet.Therefore, plunger 400 is motion and stressed critical components in angle type axial piston pump/motor operations process.As shown in Figure 2, the bulb 410 of existing plunger 400 is spherical structure with cylndrical surface 411, adopts common processing technology to be difficult to guarantee its processing dimension and precision.If the bulb of plunger 400 410 machining accuracy missionary societies affect the overall operation performance of angle type axial piston pump/motor, make product produce vibration in operation process, noise is large, and efficient is low, affects the performance of product.Therefore existing spherical plunger 400 with cylndrical surface 411 structures has narrow limitation on using, and its structural limitations can affect the stressed of plunger 400 and motion.
Because the defective that above-mentioned existing angle type axial piston pump/motor exists, the design people is based on being engaged in this type of product specification manufacturing abundant practical experience and professional knowledge for many years, and the utilization of cooperation scientific principle, positive research and innovation in addition, to founding a kind of angle type axial piston pump/motor with new structure plunger of cylinder step, can improve general existing angle type axial piston pump/motor, make it have more practicability.Through constantly research, design, and through after repeatedly studying sample and improvement, finally create the utility model that has practical value.
Summary of the invention
The purpose of this utility model is, overcome the defective that existing angle type axial piston pump/motor exists, and provide a kind of angle type axial piston pump/motor with new structure plunger, technical problem to be solved is to make it pass through improvement to the plunger ball head structure, can reduce the generation of vibrating in angle type axial piston pump/motor running process, reduce noise, raise the efficiency, and the working life of prolongation angle type axial piston pump/motor, be very suitable for practicality.
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 angle type axial piston pump/motor with new structure plunger that the utility model proposes, it comprises: housing, bearing cap, main shaft, plunger, cylinder body, thrust plate and bonnet; Wherein said plunger inserts in the cylinder bore of described cylinder body, and the bulb by being positioned at an end and the ball and socket on described main shaft; The described bulb of described plunger is provided with the cylinder table stage structure.
The purpose of this utility model and solve its technical problem and can also be further achieved by the following technical measures.
Aforesaid angle type axial piston pump/motor with new structure plunger, the described bulb that wherein is positioned at described plunger one end are to be crushed on the described ball-and-socket of described main shaft by return plate.
Aforesaid angle type axial piston pump/motor with new structure plunger, wherein said plunger also comprise a cylindrical section bar section and a conical section bar section; Wherein said cylindrical section bar section is positioned at the other end of described plunger, and described conical section bar section is positioned between described bulb and described cylindrical section bar section; And the small end of described conical section bar section is connected with described bulb, and the large end of described conical section bar section and described cylindrical section bar section are connected smoothly; Wherein be respectively equipped with a circular groove in the joint of described cylindrical section bar section and described conical section bar section and described cylindrical section bar section, plunger ring is set respectively in described circular groove.
Aforesaid angle type axial piston pump/motor with new structure plunger, wherein said thrust plate, described cylinder body, described plunger and described main shaft are to be installed in successively in described housing, and described bonnet and described bearing cap seal respectively the two ends of described housing; Wherein said main shaft is to be installed in described housing by bearing unit, and the spin axis shape of the axis of described main shaft and described cylinder body in an angle; Shaft core position at described cylinder body is provided with center hole, and a central shaft is housed in described center hole, and an end of described central shaft is by the ball and socket of bulb and described main shaft, and the other end of described central shaft is provided with prefastening force spring; Described thrust plate is arranged on described bonnet, and described cylinder body is crushed on described thrust plate by described prefastening force spring, and forms the sphere flow between described thrust plate and described cylinder body; Be respectively equipped with filler opening and oil outlet in the both sides of described bonnet; Offer drain tap on described housing.
Aforesaid angle type axial piston pump/motor with new structure plunger, wherein said main shaft has the multistage step structure that radius increases successively, and the diameter of described main shaft and described plunger rounded end is greater than the diameter of the described main shaft that stretches out described bearing cap.
The utility model compared with prior art has obvious advantage and beneficial effect.By technique scheme, a kind of angle type axial piston pump/motor with new structure plunger of the utility model has following advantages and beneficial effect at least:
1, the utility model has reduced the difficulty of processing of plunger by the improvement to the ball head structure of plunger, make the processing of plunger simple and reliable, thereby can guarantee processing dimension and the precision of plunger, improve plunger rotation and the stationarity of stretching, the operating conditions of plunger and stressing conditions are improved.
2, the utility model by the installing plunger ring, in plunger rotation and fore and aft motion process, can guarantee the excellent sealing between plunger and cylinder bore, leakage phenomenon can not occur.
3, the utility model is by the cylinder table stage structure of plunger ball a small amount of oil of can bottling up between cylinder table stage structure and ball-and-socket, play lubrication, thereby further reduce the generation of vibrating in angle type axial piston pump/motor running process, reduce noise, extend the working life of angle type axial piston pump/motor.
4, the utility model plunger when the erection column plug ring is convenient to be fixed in frock, and easy operating has brought convenience to the staff.
In sum, the utility model has significant progress technically, and has obvious good effect, is really a new and innovative, progressive, practical new design.
Above-mentioned explanation is only 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 and other purpose of the present utility model, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and the cooperation accompanying drawing, be described in detail as follows.
Description of drawings
Fig. 1 is the structural representation of existing a kind of angle type axial piston pump/motor.
Fig. 2 is the structural representation of the plunger of the existing bulb band cylindrical surface structure in Fig. 1.
Fig. 3 is a kind of structural representation with angle type axial piston pump/motor of new structure plunger of the utility model.
Fig. 4 be in Fig. 3 bulb with the structural representation of the plunger of cylinder table stage structure.
100: bearing cap 200: main shaft
300: housing 400: plunger
500: cylinder body 600: thrust plate
700: bonnet 800: plunger
210: ball-and-socket 410: bulb
411: cylndrical surface 810: bulb
811: cylinder table stage structure 820: conical section bar section
830: cylindrical section bar section 831: circular groove
Embodiment
Be to reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the utility model, below in conjunction with accompanying drawing and preferred embodiment, to according to a kind of its embodiment of angle type axial piston pump/motor, structure, feature and the effect thereof with new structure plunger that the utility model proposes, be described in detail as follows.
Relevant aforementioned and other technology contents of the present utility model, Characteristic can clearly present in the following detailed description that coordinates with reference to graphic preferred embodiment.Explanation by embodiment, should be to reach technological means and the effect that predetermined purpose takes to obtain one more deeply and concrete understanding to the utility model, yet appended graphic only be to provide with reference to the use of explanation, the utility model is limited.
See also Fig. 3 and shown in Figure 4, Fig. 3 is a kind of structural representation with angle type axial piston pump/motor of new structure plunger of the utility model.Fig. 4 be in Fig. 3 bulb with the structural representation of the plunger of cylinder table stage structure.
A kind of angle type axial piston pump/motor with new structure plunger of the utility model mainly is comprised of bearing cap 100, main shaft 200, housing 300, plunger 800, cylinder body 500, thrust plate 600 and bonnet 700.Wherein thrust plate 600, cylinder body 500, plunger 800 and main shaft 200 are installed in housing 300 successively, and bonnet 700 and bearing cap 100 two ends of seal casinghousing 300 respectively form the swept volume that seals.Main shaft 200 is to be installed in housing 300 by bearing unit, and the spin axis shape of the axis of main shaft 200 and cylinder body 500 in an angle.Shaft core position at cylinder body 500 is provided with center hole, and a central shaft is housed in center hole, and an end of described central shaft is hinged by the ball-and-socket 210 of bulb and main shaft 200, and the other end of described central shaft is provided with prefastening force spring.Thrust plate 600 is arranged on bonnet 700, and cylinder body 500 is crushed on thrust plate 600 by described prefastening force spring, and forms the sphere flow between thrust plate 600 and cylinder body 500.Be respectively equipped with filler opening and oil outlet in the both sides of bonnet 700, offer drain tap on housing 300.Plunger 800 is to insert in the cylinder bore of cylinder body 500, and hinged with the ball-and-socket 210 on main shaft 200 by the bulb 810 that is positioned at an end.Wherein the bulb 810 of the plunger 800 of the utility model angle type axial piston pump/motor is provided with cylinder table stage structure 811.And the bulb 810 that is positioned at plunger 800 1 ends can be to be crushed on the ball-and-socket 210 of main shaft 200 by return plate.
As shown in Figure 4, the plunger 800 of the utility model angle type axial piston pump/motor also comprises a cylindrical section bar section 830 and a conical section bar section 820.Its middle cylindrical section bar section 830 is positioned at the other end of plunger 800, and conical section bar section 820 is between bulb 810 and cylindrical section bar section 830.And the small end of conical section bar section 820 is connected with bulb 810, and the large end of conical section bar section 820 and cylindrical section bar section 830 are connected smoothly.Wherein be respectively equipped with a circular groove 831 in the joint of cylindrical section bar section 830 and conical section bar section 820 and cylindrical section bar section 830, in circular groove 831, the plunger ring that seals can be set respectively.
As shown in Figure 3, the main shaft 200 of the utility model angle type axial piston pump/motor can have the multistage step structure that radius increases successively, and the diameter of main shaft 200 and plunger 800 rounded ends is greater than the diameter of the main shaft 200 that stretches out bearing cap 100.
The present invention can be so that the operating conditions of plunger and stressing conditions improve by the improvement to the ball head structure of plunger; And in plunger rotation and fore and aft motion process, can guarantee sealing good between plunger and cylinder bore, leakage phenomenon can not occur; By the cylinder table stage structure of plunger ball a small amount of oil of can bottling up, play lubrication simultaneously between cylinder table stage structure and ball-and-socket, further reduce vibration, reduce noise, extend the working life of angle type axial piston pump/motor.And plunger is convenient to be fixed in frock when the erection column plug ring, and easy operating has brought convenience to the staff.
the above, it is only preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, although the utility model discloses as above with preferred embodiment, yet be not to limit the utility model, any those skilled in the art are not within 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, any simple modification that foundation technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.

Claims (5)

1. angle type axial piston pump/motor with new structure plunger, it comprises: housing, bearing cap, main shaft, plunger, cylinder body, thrust plate and bonnet; Wherein said plunger inserts in the cylinder bore of described cylinder body, and the bulb by being positioned at an end and the ball and socket on described main shaft; It is characterized in that: the described bulb of described plunger is provided with the cylinder table stage structure.
2. angle type axial piston pump/the motor with new structure plunger according to claim 1, the described bulb that it is characterized in that wherein being positioned at described plunger one end is to be crushed on the described ball-and-socket of described main shaft by return plate.
3. angle type axial piston pump/the motor with new structure plunger according to claim 1 is characterized in that described plunger also comprises a cylindrical section bar section and a conical section bar section; Wherein said cylindrical section bar section is positioned at the other end of described plunger, and described conical section bar section is positioned between described bulb and described cylindrical section bar section; And the small end of described conical section bar section is connected with described bulb, and the large end of described conical section bar section and described cylindrical section bar section are connected smoothly; Wherein be respectively equipped with a circular groove in the joint of described cylindrical section bar section and described conical section bar section and described cylindrical section bar section, plunger ring is set respectively in described circular groove.
4. the described angle type axial piston pump/motor with new structure plunger of arbitrary claim according to claim 1 to 3, it is characterized in that described thrust plate, described cylinder body, described plunger and described main shaft are to be installed in successively in described housing, described bonnet and described bearing cap seal respectively the two ends of described housing; Wherein said main shaft is to be installed in described housing by bearing unit, and the spin axis shape of the axis of described main shaft and described cylinder body in an angle; Shaft core position at described cylinder body is provided with center hole, and a central shaft is housed in described center hole, and an end of described central shaft is by the ball and socket of bulb and described main shaft, and the other end of described central shaft is provided with prefastening force spring; Described thrust plate is arranged on described bonnet, and described cylinder body is crushed on described thrust plate by described prefastening force spring, and forms the sphere flow between described thrust plate and described cylinder body; Be respectively equipped with filler opening and oil outlet in the both sides of described bonnet; Offer drain tap on described housing.
5. angle type axial piston pump/the motor with new structure plunger according to claim 4, it is characterized in that described main shaft has the multistage step structure that radius increases successively, and the diameter of described main shaft and described plunger rounded end is greater than the diameter of the described main shaft that stretches out described bearing cap.
CN 201220640945 2012-11-28 2012-11-28 Oblique shaft type axial plunger pump/motor with novel-structure plunger Withdrawn - After Issue CN202937417U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220640945 CN202937417U (en) 2012-11-28 2012-11-28 Oblique shaft type axial plunger pump/motor with novel-structure plunger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220640945 CN202937417U (en) 2012-11-28 2012-11-28 Oblique shaft type axial plunger pump/motor with novel-structure plunger

Publications (1)

Publication Number Publication Date
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103850904A (en) * 2012-11-28 2014-06-11 北京华德液压工业集团有限责任公司 Oblique-shaft type axial plunger pump/motor with novel-structured plunger
CN104454328A (en) * 2014-11-29 2015-03-25 南京萨伯工业设计研究院有限公司 Motor plunger component and machining method thereof
CN106545482A (en) * 2015-09-22 2017-03-29 无锡市德美嘉机械科技有限公司 A kind of angle type axial piston pump or motor rotor component
CN106545492A (en) * 2015-09-22 2017-03-29 无锡市德美嘉机械科技有限公司 A kind of angle type axial piston pump or motor main shaft
CN106761941A (en) * 2015-11-20 2017-05-31 熵零股份有限公司 Plunger hydraulic mechanism

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103850904A (en) * 2012-11-28 2014-06-11 北京华德液压工业集团有限责任公司 Oblique-shaft type axial plunger pump/motor with novel-structured plunger
CN103850904B (en) * 2012-11-28 2016-09-14 北京华德液压工业集团有限责任公司 A kind of angle type axial piston pump/motor
CN104454328A (en) * 2014-11-29 2015-03-25 南京萨伯工业设计研究院有限公司 Motor plunger component and machining method thereof
CN104454328B (en) * 2014-11-29 2017-02-22 南京萨伯工业设计研究院有限公司 Motor plunger component and machining method thereof
CN106545482A (en) * 2015-09-22 2017-03-29 无锡市德美嘉机械科技有限公司 A kind of angle type axial piston pump or motor rotor component
CN106545492A (en) * 2015-09-22 2017-03-29 无锡市德美嘉机械科技有限公司 A kind of angle type axial piston pump or motor main shaft
CN106761941A (en) * 2015-11-20 2017-05-31 熵零股份有限公司 Plunger hydraulic mechanism

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20130515

Effective date of abandoning: 20160914

C25 Abandonment of patent right or utility model to avoid double patenting