CN114087119A - A motion mechanism of an oblique-axis high-speed hydraulic motor - Google Patents
A motion mechanism of an oblique-axis high-speed hydraulic motor Download PDFInfo
- Publication number
- CN114087119A CN114087119A CN202111257092.8A CN202111257092A CN114087119A CN 114087119 A CN114087119 A CN 114087119A CN 202111257092 A CN202111257092 A CN 202111257092A CN 114087119 A CN114087119 A CN 114087119A
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- Prior art keywords
- shaft
- cylinder body
- bearing
- plunger
- hydraulic motor
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- 230000007246 mechanism Effects 0.000 title claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims description 11
- 239000003921 oil Substances 0.000 claims description 9
- 239000010720 hydraulic oil Substances 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 230000008602 contraction Effects 0.000 claims description 2
- 230000013011 mating Effects 0.000 claims 7
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 6
- 238000001125 extrusion Methods 0.000 abstract description 3
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 description 8
- 230000006872 improvement Effects 0.000 description 8
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
- F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
- F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
- F03C1/0636—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F03C1/0639—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block having two or more sets of cylinders or pistons
- F03C1/0642—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block having two or more sets of cylinders or pistons inclined on main shaft axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
- F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
- F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
- F03C1/0636—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F03C1/0644—Component parts
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Motors (AREA)
Abstract
The invention provides a movement mechanism of an inclined shaft type high-speed hydraulic motor, which comprises a shaft, a cylinder body and a plurality of plungers, wherein the axis of the shaft and the axis of the cylinder body are arranged in a crossed manner, the plungers are distributed and arranged around the axis of the cylinder body in the circumferential direction, the plungers are movably matched with a matching hole of the cylinder body, the cylinder body is provided with an oil hole in the matching hole, the cylinder body is provided with an integrally arranged tooth part, the tooth part is arranged around the axis of the cylinder body for one circle, the plungers are surrounded by the tooth part on the inner side, the telescopic end of each plunger is hinged with the connecting end of the shaft, and the shaft is provided with a circle of matching teeth meshed with the tooth part; the telescopic structure of the plunger piston is beneficial to reducing the surface processing precision of the plunger piston, reducing the processing difficulty, avoiding abnormal abrasion caused by extrusion of the plunger piston and the cylinder body, and simultaneously reducing the diameter of the plunger piston and improving the rotating speed.
Description
Technical Field
The invention relates to the technical field of hydraulic motors, in particular to a movement mechanism of an inclined shaft type high-speed hydraulic motor.
Background
In a conventional movement mechanism of a quantitative plunger motor, high-pressure oil is generally transmitted to the bottom of a plunger, and since the plunger forms a certain angle with a shaft, force is transmitted to the shaft through the plunger to rotate the shaft. The shaft drives the head of the plunger to rotate in the rotating process, so that a certain included angle is formed between the head end and the tail end of the plunger, and then the wall of the plunger is attached to the wall of the hole of the cylinder body to drive the cylinder body to rotate. In the process, the tail end of the plunger slides in the cylinder body hole, and the plunger wall is attached to and extruded with the wall of the cylinder body hole, so that the plunger wall and the wall of the cylinder body hole are easily abraded, and the use of the motor is influenced. And the diameter of the plunger is limited as the plunger drives the cylinder body to rotate. The diameter of the plunger in turn limits the rotational speed of the motor to some extent. Simultaneously, in order to ensure the attachment of the plunger and the cylinder body hole, the requirement on the processing precision of the outer surface of the plunger is extremely high, and the processing difficulty is high.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and provides a moving mechanism of an inclined shaft type high-speed hydraulic motor, which has the advantages that the processing precision of the surface of a plunger is reduced, the processing difficulty is reduced, the abnormal abrasion caused by the extrusion of the plunger and a cylinder body is avoided, and meanwhile, the diameter of the plunger can be reduced and the rotating speed is increased.
Compared with the prior art, the invention provides a movement mechanism of an inclined shaft type high-speed hydraulic motor, which comprises a shaft, a cylinder body and a plurality of plungers, wherein the axis of the shaft and the axis of the cylinder body are arranged in a crossed manner, the plungers are distributed and arranged around the axis of the cylinder body in the circumferential direction and are movably matched with a matching hole of the cylinder body, the cylinder body is provided with an oil hole in the matching hole, hydraulic oil entering and exiting from the oil hole is used for pushing the plungers to move along the matching hole, the cylinder body is provided with an integrally arranged tooth part which is arranged around the axis of the cylinder body in a circumferential manner, each plunger is surrounded by the tooth part at the inner side, the telescopic end of each plunger is hinged with the connecting end of the shaft, and the shaft is provided with a circle of matching teeth meshed with the tooth part; the extension of each plunger is used for pushing the shaft to rotate, the shaft drives the cylinder body to rotate through the meshing transmission of the matching teeth and the tooth parts, and the cylinder body rotates to synchronously drive each plunger to rotate.
As an improvement, the matching teeth are positioned at the rear side of the connecting end and limited by the rear end face of the connecting end.
As an improvement, a bearing is arranged on the rear side of the matching teeth.
As an improvement, the bearing is attached to the rear end face of the matching tooth and used for limiting the matching tooth.
As the improvement, be provided with first bearing, spacer ring, second bearing in proper order along the axis of axle, first bearing and second bearing all can transmit axial force to axial force sets up relatively, and the second bearing pastes mutually with the rear end face of cooperation tooth, and the second bearing is used for spacing cooperation tooth.
As an improvement, a locking nut and a stop washer are arranged on the rear side of the first bearing, the locking nut is connected with the shaft, and the stop washer is pressed on the rear end face of the first bearing.
As an improvement, the gear transmission mechanism further comprises a pin, and the pin is used for connecting the shaft and the matching teeth to realize circumferential transmission between the shaft and the matching teeth.
As an improvement, the shaft is provided with a mounting hole, the matching tooth is provided with a matching groove which penetrates through the shaft in the axial direction, the pin is inserted and connected in the mounting hole, and the part of the pin, which is exposed out of the mounting hole, is matched with the matching groove.
As a modification, the portion of the connecting end near the tooth is accommodated inside by the tooth.
As an improvement, a through hole is arranged at the axis position of the cylinder body.
After adopting the structure, compared with the prior art, the invention has the following advantages: in the scheme of the invention, the cylinder body is provided with an integrally arranged tooth part which is arranged around the axis of the cylinder body in a circle, each plunger is surrounded at the inner side by the tooth part, the telescopic end of each plunger is hinged with the connecting end of the shaft, the shaft is provided with a circle of matching teeth meshed with the tooth part, thus, high-pressure hydraulic oil enters the bottom of the plunger through an oil hole to push the telescopic end of the plunger to extend out, the telescopic end can return after extending to the right position, thus the plunger reciprocates, force is transmitted to the shaft through the plunger to rotate the shaft, the shaft drives the matching teeth to rotate when rotating, the matching teeth are meshed with the cylinder body through the tooth part to keep synchronous rotation, meanwhile, the integrally arranged tooth part is arranged around the axis of the cylinder body in a circle, each plunger is surrounded at the inner side by the tooth part, on one hand, the structural compactness is obviously improved, the structural volume is reduced, the production and the assembly are convenient, on the other hand, the volume of the meshing position is reduced, is beneficial to improving the rotating speed. Due to the adoption of the meshing mode, the extrusion of the plunger and the cylinder body is avoided, the processing precision of the surface of the plunger is reduced, and the processing difficulty is reduced. In addition, because the tooth meshes synchronous transmission, the plunger is not subjected to tangential force any more, the diameter of the plunger can be greatly reduced, the weight of the plunger is small, the centrifugal force applied during rotation is small, and the rotating speed of the motor can be correspondingly improved.
Drawings
Fig. 1 is a partial sectional view of a moving mechanism of a skew shaft type high-speed hydraulic motor.
The reference numbers indicate that 1-shaft, 2-lock nut, 3-first bearing, 4-space ring, 5-second bearing, 6-matching tooth, 7-plunger, 8-tooth part, 9-pin, 10-cylinder, 11-matching hole, 12-stop gasket, 13-oil hole, 14-through hole, 15-part near the tooth part.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
The invention is described in further detail below:
as shown in fig. 1, the moving mechanism of a skew shaft 1 type high-speed hydraulic motor has a main structure including a shaft 1 and a cylinder 10, wherein the shaft 1 and the cylinder 10 are synchronously driven by engaging teeth 6 with teeth 8, but how to increase the rotating speed requires a more detailed design, which will be described in detail below.
The movement mechanism of the inclined shaft 1 type high-speed hydraulic motor comprises a shaft 1, a cylinder body 10 and a plurality of plungers 7, wherein the axis of the shaft 1 is crossed with the axis of the cylinder body 10, the plungers 7 are distributed and arranged around the axis of the cylinder body 10 in the circumferential direction, the plungers 7 are movably matched with a matching hole 11 of the cylinder body 10, an oil hole 13 is formed in the matching hole 11 of the cylinder body 10, hydraulic oil entering and exiting from the oil hole 13 is used for pushing the plungers 7 to move along the matching hole 11, the cylinder body 10 is provided with a tooth part 8 which is integrally arranged, the tooth part 8 is arranged around the axis of the cylinder body 10 in a circle, each plunger 7 is surrounded by the tooth part 8 at the inner side, the telescopic end of each plunger 7 is hinged with the connecting end of the shaft 1, and the shaft 1 is provided with a circle of matching teeth 6 which are meshed with the tooth part 8; the extension and contraction of each plunger 7 is used for pushing the shaft 1 to rotate, the shaft 1 drives the cylinder body 10 to rotate through the meshing transmission of the matching teeth 6 and the tooth parts 8, and the cylinder body 10 rotates to synchronously drive each plunger 7 to rotate.
Because each plunger 7 is enclosed by the tooth part 8 on the inner side, the telescopic end of each plunger 7 is hinged with the connecting end of the shaft 1, the matching hole 11 needs to be arranged close to the axis of the cylinder body 10 as much as possible, which is beneficial to reducing the diameter of the cylinder body 10 except the tooth part 8, on one hand, the weight is reduced, thereby being beneficial to further, on the other hand, because the plunger 7 is close to the axis of the cylinder body 10, the centrifugal force borne by the plunger 7 and the centrifugal force borne by hydraulic oil are reduced during rotation, thereby being beneficial to reducing the influence on the plunger 7 and the hydraulic oil due to high-speed rotation, and in turn, being beneficial to the high-speed rotation of the cylinder body 10.
In order to further reduce the weight, in this example, the axial position of the cylinder 10 is provided with a through hole 14, which is more favorable for high-speed rotation.
In this example, a first bearing 3, a spacer 4 and a second bearing 5 are sequentially arranged along the axis of the shaft 1, the first bearing 3 and the second bearing 5 can both transmit axial force 1, the axial force 1 is oppositely arranged, the second bearing 5 is attached to the rear end face of the matching tooth 6, and the second bearing 5 is used for limiting the matching tooth 6. The first bearing 3 and the second bearing 5 are, for example, tapered roller bearings 1. After the design like this, simplified the structure on the one hand, convenient production assembly, on the other hand is favorable to carrying out better support to axle 1 and cooperation tooth 6, is favorable to high-speed the rotation.
The cooperation tooth 6 is located the link rear side to by the link rear end face spacing, design like this, be favorable to plunger 7 to be close to the axis setting of cylinder body 10 on the one hand, on the other hand makes axle 1 and cylinder body 10 be close to more, is favorable to reducing the transmission interval, is favorable to promoting the rotational speed like this.
The rear side of the first bearing 3 is provided with a locking nut 2 and a stop washer 12, the locking nut 2 is connected with the shaft 1, and the stop washer 12 is pressed on the rear end face of the first bearing 3. This is advantageous for simplifying the assembly without increasing the weight of the output end of the shaft 1, and thus for increasing the rotational speed.
The gear transmission mechanism further comprises a pin 9, and the pin 9 is used for connecting the shaft 1 and the matching teeth 6 so as to realize circumferential transmission between the shaft 1 and the matching teeth 6. The design is like this, simple structure connects reliably.
The shaft 1 is provided with a mounting hole, the matching tooth 6 is provided with a matching groove which penetrates through the shaft 1, the pin 9 is inserted and connected in the mounting hole, and the part of the pin 9, which is exposed out of the mounting hole, is matched with the matching groove. Design like this, on the one hand makes things convenient for the assembly, and on the other hand is favorable to cooperating tooth 6 and links the rear end face and pastes mutually, is favorable to promoting the installation accuracy.
The portion 15 of the connecting end adjacent to the toothing is accommodated inside by the toothing 8. The shaft 1 and the cylinder body 10 are enabled to be closer, the transmission distance is reduced, and the rotating speed is improved.
In understanding the present invention, the above structure may be understood with reference to other drawings, if necessary, and will not be described herein.
The foregoing is illustrative of the present invention and all such equivalent changes and modifications in the structure, features and principles described herein are intended to be included within the scope of this invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111257092.8A CN114087119A (en) | 2021-10-27 | 2021-10-27 | A motion mechanism of an oblique-axis high-speed hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111257092.8A CN114087119A (en) | 2021-10-27 | 2021-10-27 | A motion mechanism of an oblique-axis high-speed hydraulic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114087119A true CN114087119A (en) | 2022-02-25 |
Family
ID=80297905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111257092.8A Pending CN114087119A (en) | 2021-10-27 | 2021-10-27 | A motion mechanism of an oblique-axis high-speed hydraulic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114087119A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1391006A (en) * | 1971-06-19 | 1975-04-16 | Linde Ag | Hydraulic axial piston motors |
| CN101201071A (en) * | 2007-12-05 | 2008-06-18 | 中国重型机械研究院 | Hydraulic up-down swing mechanism |
| CN201121555Y (en) * | 2007-11-26 | 2008-09-24 | 镇江大力液压马达有限责任公司 | Dual-spindle output shaft valve flow distribution cycloid hydraulic motor |
| CN201125900Y (en) * | 2007-12-05 | 2008-10-01 | 中国重型机械研究院 | Hydraulic type elevating turning device |
| CN201377475Y (en) * | 2009-04-29 | 2010-01-06 | 国家林业局哈尔滨林业机械研究所 | Oblique-shaft type axial piston motor with synchronous gear |
| CN202900558U (en) * | 2012-11-26 | 2013-04-24 | 重庆红江机械有限责任公司 | Inclined-shaft type ration plunger pump |
| JP2016107688A (en) * | 2014-12-03 | 2016-06-20 | アイシン精機株式会社 | Steering device for vehicle |
-
2021
- 2021-10-27 CN CN202111257092.8A patent/CN114087119A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1391006A (en) * | 1971-06-19 | 1975-04-16 | Linde Ag | Hydraulic axial piston motors |
| CN201121555Y (en) * | 2007-11-26 | 2008-09-24 | 镇江大力液压马达有限责任公司 | Dual-spindle output shaft valve flow distribution cycloid hydraulic motor |
| CN101201071A (en) * | 2007-12-05 | 2008-06-18 | 中国重型机械研究院 | Hydraulic up-down swing mechanism |
| CN201125900Y (en) * | 2007-12-05 | 2008-10-01 | 中国重型机械研究院 | Hydraulic type elevating turning device |
| CN201377475Y (en) * | 2009-04-29 | 2010-01-06 | 国家林业局哈尔滨林业机械研究所 | Oblique-shaft type axial piston motor with synchronous gear |
| CN202900558U (en) * | 2012-11-26 | 2013-04-24 | 重庆红江机械有限责任公司 | Inclined-shaft type ration plunger pump |
| JP2016107688A (en) * | 2014-12-03 | 2016-06-20 | アイシン精機株式会社 | Steering device for vehicle |
Non-Patent Citations (1)
| Title |
|---|
| 廖佩金: "汽车运用与修理 下", 31 October 1994, 石油工业出版社, pages: 229 * |
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Application publication date: 20220225 |