CN219865321U - Plane flow distribution cycloid hydraulic motor - Google Patents
Plane flow distribution cycloid hydraulic motor Download PDFInfo
- Publication number
- CN219865321U CN219865321U CN202320485085.1U CN202320485085U CN219865321U CN 219865321 U CN219865321 U CN 219865321U CN 202320485085 U CN202320485085 U CN 202320485085U CN 219865321 U CN219865321 U CN 219865321U
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- flow distribution
- shell
- stator
- hydraulic motor
- output shaft
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052802 copper Inorganic materials 0.000 claims abstract description 7
- 239000010949 copper Substances 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 5
- 239000003921 oil Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 10
- 239000000428 dust Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 241000227287 Elliottia pyroliflora Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- Hydraulic Motors (AREA)
Abstract
The utility model discloses a plane flow distribution cycloid hydraulic motor, which relates to the technical field of hydraulic motors and comprises a hydraulic oil containing cavity formed by fixedly connecting a shell, a stator and a rear cover, wherein the front end of the rear cover is provided with a rotating stator pair and a flow distribution system, wherein the rotating stator pair comprises a stator, needle teeth and a rotor; one end of the shell is provided with an output shaft with the outer end extending out, and a bearing is arranged between the output shaft and the shell; the middle part of the shell is provided with a transmission shaft with two ends respectively meshed with the inner end of the output shaft and the inner spline of the rotor; the flow distribution system is provided with a flow distribution pressure plate, a flow distribution valve and a valve disc; the valve disc is arranged between the stator and the body shell; the front end of the body shell is provided with a front cover, and a copper sleeve is arranged between the front cover and a bearing. The utility model can solve the problems of difficult installation caused by the low service life, large pressure loss, low mechanical efficiency, long length and large volume of the motor of the conventional cycloid hydraulic motor because the heat generated by the linkage shaft of the cycloid hydraulic motor is not easy to take away.
Description
Technical Field
The utility model relates to the technical field of hydraulic motors, in particular to a cycloid hydraulic motor with plane flow distribution.
Background
The cycloid hydraulic motor is a gear internal engagement hydraulic motor which is manufactured by utilizing the principle of small tooth difference. The plane flow distribution cycloid hydraulic motor comprises a hydraulic oil containing cavity formed by fixedly connecting a body shell 6, a stator 10 and a rear cover 11, wherein a lateral oil inlet and an oil return port are arranged on the containing cavity, one end of the rear cover 11 is a rotor-stator pair and a flow distribution system which mainly comprise the stator 10, a pin tooth 15 and a rotor 16, an output shaft 1 with an outer end extending out is arranged at one end of the body shell 6, a large linkage shaft 25 and a small linkage shaft 26 with two ends respectively engaged with the inner end of the output shaft 1 and an inner spline of the rotor 16 are arranged in the middle of the body shell 6, the rotor-stator pair moves through a flow distribution system in the rear cover 11, the flow distribution system is provided with a flow distribution pressure disc 17, and the flow distribution pressure disc 17 is connected with the rear cover 11 through a pin 18. The plane flow distribution cycloid motor in the form has the problems that large heat generated by the large and small linkage shafts is not easy to take away, the service life of the motor is low, the pressure loss is large, and the mechanical efficiency is low, and on the other hand, the length is too long, the volume is large, so that the motor is difficult to install in places with small space, and particularly, the occupied space with large displacement is large.
Disclosure of Invention
The utility model aims to solve the technical problems of low service life, large pressure loss, low mechanical efficiency, long length and large volume of a motor and difficult installation of the motor by providing a plane flow distribution cycloid hydraulic motor which can solve the problems that large heat generated by a linkage shaft of the traditional cycloid hydraulic motor is not easy to take away.
In order to solve the problems, the utility model adopts the following technical scheme: the plane flow distribution cycloid hydraulic motor comprises a hydraulic oil accommodating cavity formed by fixedly connecting a shell, a stator and a rear cover, wherein an oil inlet and an oil return port are arranged on the accommodating cavity, and the front end of the rear cover is provided with a rotating stator pair comprising the stator, needle teeth and a rotor and a flow distribution system; the pin teeth are arranged between the rotor and the stator; an output shaft with the outer end extending out is arranged at one end of the shell, and a needle bearing and a deep groove ball bearing are arranged between the output shaft and the shell; the middle part of the shell is provided with a transmission shaft with two ends respectively meshed with the inner end of the output shaft and the inner spline of the rotor; the flow distribution system is provided with a flow distribution pressure plate, a flow distribution valve and a valve disc; the valve disc is arranged between the stator and the body shell; the rotor-stator pair moves through a flow distribution system. The front end of the body shell is provided with a front cover, and a copper sleeve is arranged between the front cover and the deep groove ball bearing.
Among the above technical schemes, more specific technical schemes may also be: an O-shaped sealing ring is arranged between the front cover and the copper sleeve.
Further: an O-shaped sealing ring is arranged between the front cover and the body shell;
further: and a Gelai ring is arranged between the front cover and the output shaft.
Further: a dust ring is arranged between the front cover and the output shaft.
Further: the back cover is connected with the body shell through a fastener, and O-shaped sealing rings are arranged between the valve disc and the stator and between the valve disc and the body shell.
Further: the fastener is a screw.
Due to the adoption of the technical scheme, compared with the prior art, the utility model has the following beneficial effects:
the utility model integrates the original large linkage shaft and the small linkage shaft into a single linkage shaft, reduces accessories compared with the existing plane flow distribution motor, reduces the cost by about 15%, and the heat generated by the linkage shaft is easier to take away, improves the service life and mechanical efficiency of the motor, simultaneously reduces the motor length by 30% under the condition of equal rated flow and equal displacement under the condition of equal performance of the existing motor, and has smaller occupied space, convenient installation and easier acceptance by customers.
Drawings
FIG. 1 is a schematic diagram of a prior art planar flow-distributing gerotor hydraulic motor;
FIG. 2 is a schematic view of the structure of the present utility model (taken along line A-A in FIG. 4);
FIG. 3 is a schematic front view of the present utility model;
fig. 4 is a schematic left-hand view of the present utility model.
The reference numerals in the figures are: 1. the output shaft, 2, the dust ring, 3, the glain ring, 4, the front cover, 5, 8, 23, the O-shaped sealing ring, 6, the shell, 7, the distributing valve, 9, the valve disc, 10, the stator, 11, the back cover, 12, the fastener, 13, the flat key, 14, the transmission shaft, 15, the needle teeth, 16, the rotor, 17, the distributing pressure disc, 18, the pin, 19, the needle bearing, 20, the deep groove ball bearing, 21, the retainer ring, 22, the screw, 24, the copper bush, 25, the large universal driving shaft, 26 and the small universal driving shaft.
Detailed Description
The utility model is further described in detail below with reference to the examples of the drawings:
fig. 1 is a schematic structural diagram of a conventional planar flow distribution cycloid hydraulic motor, and the structure and problems thereof have been described in the background art and are not described herein.
The plane flow distribution cycloid hydraulic motor shown in fig. 2, 3 and 4 comprises a hydraulic oil containing cavity formed by fixedly connecting a body shell 6, a stator 10 and a rear cover 11, wherein a lateral oil inlet and an oil return port are arranged on the containing cavity as shown in fig. 3, the front end of the rear cover 11 is a rotating stator pair and a flow distribution system which mainly comprise the stator 10, a pin tooth 15 and a rotor 16, the rear cover 11 is connected with the body shell 6 through a fastening piece 12, and the fastening piece 12 is a screw; the needle teeth 15 are interposed between the rotor 16 and the stator 10; one end of the body shell 6 is provided with an output shaft 1 with the outer end extending out, and the middle part is provided with a transmission shaft 14 with two ends respectively engaged with the inner end of the output shaft 1 and the inner spline of the rotor 16; the flow distribution system is provided with a flow distribution pressure plate 17, a flow distribution valve 7 and a valve disc 9; the flow distribution pressure disc 17 is connected with the stator 10 through a pin 18 so as to press the flow distribution valve 7, the flow distribution valve 7 is connected with the output shaft 1 through a flat key 13, the valve disc 9 is arranged between the stator 10 and the body shell 6, and O-shaped sealing rings 8 are arranged between the valve disc 9 and the stator 10 and between the valve disc 9 and the body shell 6; the rotation stator pair realizes the motion through a flow distribution system, namely, an output shaft 1 of the motor and the flow distribution valve 7 drive the valve disc 9 through a flat key 13 to realize the oil distribution, and the rotation of the flow distribution valve 7 is driven by the rotation of the output shaft 1 to realize the continuous rotation oil distribution process of the motor: the oil inlet, the flow distributing valve, the valve disc, the stator and rotor pair (high-pressure area), the stator and rotor pair (low-pressure area), the valve disc, the flow distributing valve and the oil return port.
A needle bearing 19 and a deep groove ball bearing 20 are arranged between the output shaft 1 and the body shell 6; the front end of the body shell 6 is provided with a front cover 4, a copper sleeve 24 is arranged between the front cover 4 and the deep groove ball bearing 20, an O-shaped sealing ring 23 is arranged between the front cover 4 and the copper sleeve 24, and an O-shaped sealing ring 5 is arranged between the front cover 4 and the body shell 6; a Gelai ring 3 is arranged between the front cover 4 and the output shaft 1, and a dust ring 2 is arranged on the output shaft 1 sleeved on the front end of the front cover 4.
Claims (7)
1. The plane flow distribution cycloid hydraulic motor comprises a hydraulic oil containing cavity formed by fixedly connecting a shell (6), a stator (10) and a rear cover (11), wherein an oil inlet and an oil return port are arranged on the containing cavity, and the front end of the rear cover (11) is provided with a rotating stator pair and a flow distribution system, wherein the rotating stator pair comprises the stator (10), needle teeth (15) and a rotor (16); -said needle teeth (15) are interposed between said rotor (16) and said stator (10); an output shaft (1) with the outer end extending out is arranged at one end of the shell (6), and a needle bearing (19) and a deep groove ball bearing (20) are arranged between the output shaft (1) and the shell (6); the method is characterized in that: a transmission shaft (14) with two ends respectively engaged with the inner end of the output shaft (1) and the internal spline of the rotor (16) is arranged in the middle of the shell (6); the flow distribution system is provided with a flow distribution pressure plate (17), a flow distribution valve (7) and a valve disc (9); the flow distribution pressure plate (17) is connected with the stator (10) through a pin (18), the flow distribution valve (7) is connected with the output shaft (1) through a flat key (13), and the valve disc (9) is arranged between the stator (10) and the shell (6); the front end of the shell (6) is provided with a front cover (4), and a copper sleeve (24) is arranged between the front cover (4) and the deep groove ball bearing (20).
2. The planar flow-distributing gerotor hydraulic motor of claim 1, wherein: an O-shaped sealing ring is arranged between the front cover (4) and the copper sleeve (24).
3. The planar flow-distributing gerotor hydraulic motor of claim 1 or 2, characterized in that: an O-shaped sealing ring is arranged between the front cover (4) and the shell (6).
4. A planar flow-distributing gerotor hydraulic motor of claim 3, characterized in that: a Gelai ring (3) is arranged between the front cover (4) and the output shaft (1).
5. The planar flow-distributing gerotor hydraulic motor of claim 4, wherein: a dust ring (2) is arranged between the front cover (4) and the output shaft (1).
6. The planar flow-distributing gerotor hydraulic motor of claim 5, wherein: the rear cover (11) is connected with the shell (6) through a fastener (12), and O-shaped sealing rings are arranged between the valve disc (9) and the stator (10) and between the valve disc and the shell (6).
7. The planar flow-distributing gerotor hydraulic motor of claim 6, wherein: the fastener (12) is a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320485085.1U CN219865321U (en) | 2023-03-14 | 2023-03-14 | Plane flow distribution cycloid hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320485085.1U CN219865321U (en) | 2023-03-14 | 2023-03-14 | Plane flow distribution cycloid hydraulic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219865321U true CN219865321U (en) | 2023-10-20 |
Family
ID=88371487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320485085.1U Active CN219865321U (en) | 2023-03-14 | 2023-03-14 | Plane flow distribution cycloid hydraulic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219865321U (en) |
-
2023
- 2023-03-14 CN CN202320485085.1U patent/CN219865321U/en active Active
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