CN2760280Y

CN2760280Y - Double-stator laminated plate distribution cycloidal hydraulic motor

Info

Publication number: CN2760280Y
Application number: CN 200420053288
Authority: CN
Inventors: 颜井志; 王洪全; 李永贞
Original assignee: EATON FLUID POWER (JINING) Co Ltd
Current assignee: EATON FLUID POWER (JINING) Co Ltd
Priority date: 2004-08-26
Filing date: 2004-08-26
Publication date: 2006-02-22
Anticipated expiration: 2014-08-26

Abstract

The utility model relates to a double-stator laminated plate distribution cycloidal hydraulic motor. An output shaft supported by a bearing is arranged in a bearing casing. The inner end part of the output shaft is provided with a front partition plate which is tightly matched with the bearing casing. An oil distributing mechanism is composed of a valve body, a balance disc, a flow dividing valve, a universal driving shaft for a valve and a flow distributing disc. An oil inlet hole and an oil outlet are respectively arranged on the valve body and the flow distributing disc. A stator rotor pair which is composed of a rotor, a stator and needle punches is arranged between the bearing casing and the valve body. Two short stators are overlapped to form the stator of the stator rotor pair. The needle punches matched with the stator of the stator rotor pair are correspondingly arranged into two rows. One end surface where the two short stators are matched is provided with a sealing groove in which a sealing ring is arranged. The utility model has the advantages of reasonable design and novel structure. The length of an integral type stator is more than 60 mm, and the integral type stator is changed into a double-stator laminated stator, which ensures the requirement of large displacement of the hydraulic motor and improves the size accuracy and the positional accuracy of a needle punch hole.

Description

Double-stator laminated plate distribution cycloidal oil hydraulic motor

Affiliated technical field

The utility model relates to the variable capacity technical field of engines of liquid driven, specifically the plate distribution cycloidal oil hydraulic motor of a kind of pair of stator stack.

Background technique

At present, most dish flow oil hydraulic motor is made up of oil distribution mechanism, energy transfer mechanism, torque-transmitting mechanisms and moment of torsion output mechanism.Advantages such as this oil hydraulic motor is little because of volume, and power-weight ratio is big and being used widely.But its energy transfer mechanism is that rotor is paid, and when its length during greater than 60mm, it generally all is monolithic construction that rotor is paid, and promptly is made up of a stator, 7 or 9 acupunctures and a rotor.Because its thickness is long, no matter the stator pinprick adopts still boring hinge of broaching, and the dimensional accuracy of pinprick and positional accuracy all are difficult to guarantee, thereby might influence the quality and the mechanical property of product.

Summary of the invention

Pay the deficiency that exists on the structure in order to overcome present dish flow oil hydraulic motor at rotor, it is a kind of easy to process that the utility model provides, the double-stator laminated plate distribution cycloidal oil hydraulic motor of good mechanical property.

The technological scheme that its technical problem that solves the utility model adopts is: this double-stator laminated plate distribution cycloidal oil hydraulic motor, in bearing housing, be provided with output shaft by the bearing supporting, the inner end of output shaft be provided with bearing housing close-fitting before dividing plate, two end teeth, one end of couple axle and the engagement of the internal tooth of output shaft, the internal tooth engagement of one end and rotor, by valve body, Balance disc, diverter valve, valve is formed oil distribution mechanism with couple axle and thrust plate, valve is meshed with the internal tooth of thrust plate and the internal tooth of rotor respectively with two end teeth of couple axle, on valve body and thrust plate, be respectively equipped with oil inlet hole and oil outlet, by rotor, the rotor that stator and acupuncture are formed is paid and is arranged between bearing housing and the valve body, be that mainly the stator that said rotor is paid is formed by two short stator stack combinations, the acupuncture that is mated becomes corresponding two row arrangement, on the end face that two short stators match, be provided with seal groove, be provided with seal ring in the seal groove; The acupuncture quantity that becomes two row arrangement is 14 or 18.

The utility model major advantage compared with prior art is reasonable in design, novel structure.Change the double-stator laminated rotor into and pay because length paid greater than the integrated type rotor of 60mm, promptly be superimposed to form a long stator, 14 or 18 acupuncture, rotor and seal ring and form by two short stators.This structure had both satisfied the requirement of the big discharge capacity of oil hydraulic motor, had guaranteed the dimensional accuracy and the positional accuracy of pinprick again, and had improved the processing technology of part, and then had improved mechanical performance of products and quality.

Description of drawings

Below in conjunction with drawings and Examples the utility model is elaborated.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 pays structural representation for rotor of the present utility model;

Fig. 3 is the G-G sectional structure schematic representation of Fig. 2.

1. Balance discs among the figure, 2. diverter valve, 3. thrust plate, 4. rotor, 5. stator, 6. acupuncture, 7. bearing, 8. output shaft, 9. bearing housing, 10. couple axle, dividing plates before 11., 12. rotors are paid, 13. the valve couple axle, 14. valve bodies, 15. short stators, 16. seal grooves, 17. short stators, 18. seal rings.

Embodiment

As shown in Figure 1, this double-stator laminated plate distribution cycloidal oil hydraulic motor is made up of oil distribution mechanism, energy transfer mechanism, torque-transmitting mechanisms and moment of torsion output mechanism.In bearing housing 9, be provided with output shaft 8 by bearing 7 supporting, the inner end of output shaft 8 be provided with bearing housing 9 close-fitting before dividing plate 11, two end teeth, one end of couple axle 10 meshes with the internal tooth of output shaft 8, the internal tooth of the other end and rotor 4 meshes.Form oil distribution mechanism by valve body 14, Balance disc 1, diverter valve 2, valve with couple axle 13 and thrust plate 3, valve is meshed with the internal tooth of thrust plate 3 and the internal tooth of rotor 4 respectively with two end teeth of couple axle 13, be respectively equipped with oil inlet hole and oil outlet on valve body 14 and thrust plate 3, the hydraulic oil that enters from oil inlet hole distributes the inflow rotor to pay the formation hydraulic pressure cavity.The rotor of being made up of rotor 4, stator 5 and acupuncture 6 is paid 12 and is arranged between bearing housing 9 and the valve body 14 and constitutes energy transfer mechanism.

Shown in Fig. 2,3, this rotor is paid 12 length greater than 60mm, its stator 5 is formed by short stator 15 and short stator 17 stack combinations, 6 one-tenth corresponding two row arrangement of the acupuncture that is mated, on the end face that short stator 15 and short stator 17 match, be provided with seal groove 16, be provided with a seal ring 18 in the seal groove 16.

Claims

1, a kind of double-stator laminated plate distribution cycloidal oil hydraulic motor, in bearing housing (9), be provided with output shaft (8) by bearing (7) supporting, the inner end of output shaft (8) be provided with bearing housing (9) close-fitting before dividing plate (11), two end teeth, one end of couple axle (10) and the engagement of the internal tooth of output shaft (8), the internal tooth engagement of one end and rotor (4), by valve body (14), Balance disc (1), diverter valve (2), valve is formed oil distribution mechanism with couple axle (13) and thrust plate (3), valve is meshed with the internal tooth of thrust plate (3) and the internal tooth of rotor (4) respectively with two end teeth of couple axle (13), on valve body (14) and thrust plate (3), be respectively equipped with oil inlet hole and oil outlet, by rotor (4), the rotor that stator (5) and acupuncture (6) are formed is paid (12) and is arranged between bearing housing (9) and the valve body (14), it is characterized in that: the stator (5) that said rotor is paid (12) is formed by short stator (15) and short stator (17) stack combinations, the acupuncture that is mated (6) becomes corresponding two row arrangement, on the end face that short stator (15) and short stator (17) match, be provided with seal groove (16), be provided with seal ring (18) in the seal groove (16).

2, double-stator laminated plate distribution cycloidal oil hydraulic motor according to claim 1, acupuncture (6) quantity that it is characterized in that into two row arrangement is 14.

3, double-stator laminated plate distribution cycloidal oil hydraulic motor according to claim 1, acupuncture (6) quantity that it is characterized in that into two row arrangement is 18.