CN103946542B - The swash plate of hydrostatic speed change gear modified node method - Google Patents
The swash plate of hydrostatic speed change gear modified node method Download PDFInfo
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- CN103946542B CN103946542B CN201380001021.9A CN201380001021A CN103946542B CN 103946542 B CN103946542 B CN 103946542B CN 201380001021 A CN201380001021 A CN 201380001021A CN 103946542 B CN103946542 B CN 103946542B
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- swash plate
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- speed change
- change gear
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2014—Details or component parts
- F04B1/2078—Swash plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
- F04B1/124—Pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/128—Driving means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/0804—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B27/0821—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block component parts, details, e.g. valves, sealings, lubrication
- F04B27/086—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block component parts, details, e.g. valves, sealings, lubrication swash plate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
- F16H61/439—Control of the neutral position, e.g. by zero tilt rotation holding means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2210/00—Working fluid
- F05B2210/10—Kind or type
- F05B2210/11—Kind or type liquid, i.e. incompressible
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H39/00—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution
- F16H39/04—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit
- F16H39/06—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit pump and motor being of the same type
- F16H39/08—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit pump and motor being of the same type each with one main shaft and provided with pistons reciprocating in cylinders
- F16H39/10—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit pump and motor being of the same type each with one main shaft and provided with pistons reciprocating in cylinders with cylinders arranged around, and parallel or approximately parallel to the main axis of the gearing
- F16H39/12—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motor and pump combined in one unit pump and motor being of the same type each with one main shaft and provided with pistons reciprocating in cylinders with cylinders arranged around, and parallel or approximately parallel to the main axis of the gearing with stationary cylinders
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S417/00—Pumps
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reciprocating Pumps (AREA)
- Hydraulic Motors (AREA)
Abstract
The present invention relates to hydrostatic speed change gear swash plate, above-mentioned hydrostatic speed change gear, along with operating stem work, swash plate contacts with base plate, optionally make the multiple control valve unit work corresponding with piston assembly (106), carry out drive motor, the feature of above-mentioned hydrostatic speed change gear swash plate is, with the inner side surface of above-mentioned base plate (103) above-mentioned swash plate (102) in opposite directions, to be more formed obliquely away from the mode of base plate the closer to the outside of radial direction from the adjacent part in the hole (105) with central authorities, above-mentioned base plate carries out linear contact lay in the part that the hole (105) of the central authorities with swash plate is adjacent with swash plate, in the neutral position that motor is static, the time that under the state of carrying out linear contact lay at the swash plate tilted with the operation by operating stem along with base plate, delay face contacts carries out action, the driving of motor is postponed, therefore, the driving of oil hydraulic motor can postpone from the linear contact lay time to face contact of above-mentioned swash plate with base plate, thus expand the interval of neutral position easily, and thus with existing swash plate is made sensitivity response base plate structure compared with, have and can prevent the security incident of hydraulic pressure installation and the generation of pulsation and the effect improving product quality.
Description
Technical field
The present invention relates to a kind of hydrostatic speed change gear and improve oblique disk structure, especially, relate to a kind of swash plate of following modified node method, according to the aspectant contact structures of existing swash plate and base plate (shoeplate), solve in the neutral position of speed change lever when carelessness causes the fault produced during contact.
Background technique
In general, the hydrostatic speed change gear that the speed change of the vehicle such as combine-harvester or tractor uses as Fig. 1 and Fig. 2 concise and to the point shown in, consequently, the working oil of discharging by the variable capacity type oil hydraulic pump 2 driven by engine 1 supplies to oil hydraulic motor 3, and rework solution press pump thus, and in order to simplify the formation of hydraulic tube, oil hydraulic motor 3 is set in the downside of above-mentioned oil hydraulic pump, and drive oil hydraulic pump by engine, and be driven through the oil hydraulic motor of hydraulic tube connection.Reference character 5 is output shafts of motor.
At above-mentioned oil hydraulic pump to configure base plate 11 with the mode that swash plate (swashplate) 10 contacts face-to-face, wherein, swash plate 10 works in the mode of being undertaken swinging by operating stem not shown in figures, the multiple piston assemblys 12 being arranged at multiple cylinder are configured with at above-mentioned base plate 11, by the operation of swash plate, be connected with cylinder unshowned in accompanying drawing and base plate 11.
With reference to Fig. 3 to Figure 11, in the operating stem of Fig. 3 and the position of swash plate, as shown in Figure 4, be connected to stream, motor is made to carry out rotary work in the direction of the clock, operating stem shown in Fig. 5 and the position of swash plate, as shown in Figure 6, motor is by counterclockwise rotating, and the position of operating stem shown in Fig. 7 and swash plate, then as shown in Figure 8, the stream be connected between oil hydraulic pump and motor suffers restraints, and motor is stopped, thus, according to the angle of the swash plate operated by operating stem, the sense of rotation of motor will change automatically.
In the past, the state contacted with complete face due to above-mentioned swash plate 10 and base plate 11 is configured, therefore, along with responsive to the action of operating stem, can reduce the rotation of motor should be made to stop completely neutral zone between width, even if because of staff carelessness etc. cause the operating stem of neutral position occur and unintentional little trick, multiple piston also can work and cause accident to occur, like this, there is the problem of the operating condition instability of hydraulic pressure installation.The various type hydraulic actuator of clear No. 59-79078 of Japanese Patent Publication (on 05 08th, 1984 open) is also described above, form the configuration structure that swash plate contacts with base plate forming surface opposite, and there is the problem of the operating condition instability of above-mentioned hydraulic pressure installation.Further, as mentioned above, because operating condition is responsive to operating stem, and produce violent pulsation, there is the problem of the durability decline of hydraulic pressure installation and the flow efficiency reduction of working oil.
In order to solve problem as above, need to carry out architecture advances, in neutral position, when the carelessness because of staff causes the action of operating stem, if piston assembly body carries out small work by setting degree, motor would not work.
Summary of the invention
Technical problem
Technical problem to be solved by this invention is, the configuration structure of the base plate that face contacts is carried out with swash plate in the variable capacity type oil hydraulic pump of hydrostatic speed change gear being arranged at the vehicles such as above-mentioned existing combine-harvester or tractor, thus, the object of this invention is to provide a kind of oblique disk structure of improvement, at the formation tilt angle, surface of the swash plate contacted with base plate, between base plate and swash plate, form play, prevent from the interval corresponding with above-mentioned play producing the work of swash plate operating stem reacting rapidly.
Another object of the present invention is to, a kind of oblique disk structure improving restoring force in order to ensure the neutrality of swash plate is provided.
The means of technical solution problem
In order to reach above-mentioned purpose, the invention provides a kind of swash plate of hydrostatic speed change gear modified node method, in hydrostatic speed change gear, in body, pump shaft (pumpshaft) is configured in the mode in the hole of through central authorities, multiple base plate is configured with the way of contact in a side of the swash plate of the annular configured centered by above-mentioned pump shaft, and multiple base plate is connected with multiple piston assembly respectively and configures with ring style, to be connected ground open and close valve device with the work of above-mentioned piston assembly, along with operating stem work, swash plate contacts with base plate, optionally make the multiple control valve unit work corresponding with piston assembly, carry out drive motor, in above-mentioned hydrostatic speed change gear swash plate, with the inner side surface of above-mentioned base plate above-mentioned swash plate in opposite directions, be formed obliquely in the mode the closer to the outside of radial direction more away from base plate from the part adjacent with the hole of central authorities, the part that above-mentioned base plate is adjacent in the hole of the central authorities with swash plate carries out linear contact lay with swash plate, in the neutral position that motor is static, the time that under the state of carrying out linear contact lay at the swash plate tilted with the operation by operating stem along with base plate, delay face contacts carries out action, the driving of motor is postponed.
Consider the capacity of oil hydraulic pump select above-mentioned swash plate with the angle tilted away from the mode of base plate, preferably, be selected between 0.5 ° to 5.4 °.
Preferably, above-mentioned swash plate is centered by the virtual straight line connecting two fixing pins, the spring eye of swash plate is formed respectively in both sides, to give to the running shaft of above-mentioned swash plate the tilt angle presetting angle, wherein, above-mentioned two fixing pins are centered by the hole of above-mentioned central authorities, formed in both sides, position in opposite directions the spring eye of base plate is formed accordingly with the spring eye formed at above-mentioned swash plate at the side base plate in opposite directions with swash plate, the two side portions of spring to be inserted in respectively the mode mounting spring of the spring eye of above-mentioned swash plate and the spring eye of above-mentioned base plate, improve the restoring force of swash plate.
The effect of invention
According to the present invention, under the state that swash plate and the base plate being connected piston assembly body and control valve unit carry out linear contact lay, along with operating stem work, swash plate and base plate carry out face and contact linkage, carry out drive motor, thus in time till above-mentioned swash plate contacts from linear contact lay to face with base plate, postpone the driving of oil hydraulic motor, expand the interval of neutral position easily, thus, along with existing swash plate is made sensitivity response base plate structure compared with, the security incident of hydraulic pressure installation and violent action can be prevented, thus the generation of pulsation can be prevented, therefore, there is the effect improving product quality.
Accompanying drawing explanation
Fig. 1 is the structural drawing of the existing oil hydraulic pump of hydrostatic speed change gear and the concise and to the point of oil hydraulic motor.
Fig. 2 is the sectional view of the one-piece type oil hydraulic pump of concise and to the point hydrostatic speed change gear of configuration structure for representing existing swash plate and base plate and the structure of oil hydraulic motor.
Fig. 3 with Fig. 4 is the working state figure of operating stem and swash plate and the pump corresponding with operating stem and swash plate and motor when oil hydraulic motor rotates in the direction of the clock in existing hydrostatic speed change gear.
Fig. 5 with Fig. 6 is when oil hydraulic motor is by the working state figure of operating stem when counterclockwise rotating and swash plate and the pump corresponding with operating stem and swash plate and motor.
Fig. 7 with Fig. 8 is the working state figure of operating stem and swash plate and the pump corresponding with operating stem and swash plate and motor when the stop position of oil hydraulic motor.
Fig. 9 represents the sectional view of the oblique disk structure based on modified node method of the present invention.
Figure 10 is the stereogram of the swash plate of Fig. 9.
Figure 11 is the plan view of the swash plate of another embodiment of the present invention.
Figure 12 is the sectional view of the state of having installed spring between swash plate shown in Figure 11 and base plate.
Figure 13 is plan view and the sectional view of the base plate of Figure 12.
Figure 14, as the variation of the swash plate of Figure 10, represents formation two pairs of spring eyes.
Embodiment
Most preferred embodiment
According to the swash plate of hydrostatic speed change gear modified node method of the present invention, in hydrostatic speed change gear, in body, pump shaft is configured in the mode in the hole of through central authorities, multiple base plate is configured with the way of contact in a side of the swash plate of the annular configured centered by above-mentioned pump shaft, and multiple base plate is connected with multiple piston assembly respectively and configures with ring style, to be connected ground open and close valve device with the work of the above-mentioned piston assembly being connected to above-mentioned base plate, along with operating stem work, swash plate contacts with base plate, optionally make the multiple control valve unit work corresponding with piston assembly, carry out drive motor, in above-mentioned hydrostatic speed change gear swash plate, with the inner side surface of above-mentioned base plate above-mentioned swash plate in opposite directions, be formed obliquely in the mode the closer to the outside of radial direction more away from base plate from the part adjacent with the hole of central authorities, the part that above-mentioned base plate is adjacent in the hole of the central authorities with swash plate carries out linear contact lay with swash plate, in the neutral position that motor is static, the time that under the state of carrying out linear contact lay at the swash plate tilted with the operation by operating stem along with base plate, delay face contacts carries out action, the driving of motor is postponed.
Below, with reference to for illustrating the accompanying drawing of the embodiment of the present invention, more the present invention is described in detail.
As shown in Figure 9 and Figure 10, hydrostatic speed change gear of the present invention, in body 100, base plate 103 is configured in the mode of linear contact lay in a side 104 of the swash plate 102 of the annular be configured centered by pump shaft 101, above-mentioned base plate is connected with multiple piston assembly 106 respectively, and configures in the mode of ring-type.
For this reason, as shown in the sectional view of Fig. 9, with the inner side surface of above-mentioned base plate 103 above-mentioned swash plate 102 in opposite directions, be more formed obliquely away from the mode of base plate with the outside of the part adjacent from the hole 105 with central authorities the closer to radial direction.Above-mentioned inclination is considered the capacity of oil hydraulic pump etc. and sets, and preferably, is selected from the scope between 0.5 ° to 5.4 °.
Because the inner side surface of above-mentioned swash plate tilts, linear contact lay is carried out in adjacent part in base plate and hole 105, such as, when bar is worked from neutral condition as shown in Figure 7 to the position shown in Fig. 4, correspond to the play distance of carrying out between the swash plate of the base plate that face contacts and selected base plate with the swash plate tilted, the work of the piston assembly be connected with base plate and the open of valve postpone, delay in supply working oil thus, thereupon, also can postpone motor to rotate clockwise.
And, when bar works from the neutral condition shown in Fig. 9 to the position shown in Fig. 6, postpone and state that linear contact lay is carried out on selected base plate and the surface of the swash plate of the inclination play to the state that face contacts apart from after the corresponding time, along with piston assembly work, corresponding valve is open, thus to motor supply working oil, thus, motor is rotated counterclockwise.
In another embodiment of the present invention shown in Figure 11 to Figure 13, in a side 104 of swash plate 102, in order to ensure the neutrality of swash plate, centered by the virtual straight line connecting two fixing pins 110, spring eye 115 is formed respectively in both sides, to give to the running shaft of swash plate the tilt angle presetting angle, wherein, above-mentioned two fixing pins 110 are centered by hole 105, formed in both sides, position in opposite directions spring eye 117 is formed accordingly with above described holes 115 at a side 104 base plate 103 in opposite directions with swash plate, the two side portions of spring 120 is inserted respectively and is installed on the spring eye 115 of above-mentioned swash plate and the spring eye 117 of base plate.
Even if with the inner side surface of above-mentioned base plate 103 above-mentioned swash plate 102 in opposite directions, more be formed obliquely away from the scope of mode between 0.5 ° to 5.4 ° of base plate with the outside of the adjacent part in the hole 105 from central authorities the closer to radial direction, swash plate also can be kept in balance by the reaction force of above-mentioned spring, and not to certain lopsidedness.
Figure 14 shows the variation forming two pairs of spring eyes 115 in a side 104 of swash plate, in the case, also centered by the virtual straight line connecting two fixing pins 110, two spring eyes are formed respectively in both sides, above-mentioned two fixing pins 110 are centered by the hole 105 of swash plate, formed in both sides, also form the spring eye of equal number in the face in opposite directions of base plate.
Hydrostatic speed change gear is when the operation by bar or pedal starts, namely, promote and unstick or pedal time, the restoring force automatically restoring to neutral condition is provided, but this type of restoring force is due to many reasons, when identical with the steering force that will start or more weak than the steering force that will start, swash plate cannot recover or with larger angular slope, thus produce larger startup displacement, therefore, when restoring force is less than steering force, likely fatal problem can be produced in the stability of product.
In the above-described embodiment, by the restoring force provided by the reaction force of the spring provided between swash plate and base plate, the neutrality improving swash plate is balanced, thus removes problem above-mentioned, and therefore, the stability of product is improved.
Thus, such as, even if work group personnel in neutral position because of carelessness manipulation operations bar mistakenly, also can not work above-mentioned play distance, and until make swash plate tilt completely by operating stem, and till contacting face-to-face, also the vigorous motion of piston assembly body and valve can not be there is, and swash plate stably holding position, thus can not as prior art, impact with pulsation because of the violent speed change between neutral zone, also security incident can not occur.
Utilizability in industry
The present invention can be used in following situation, such as, at combine-harvester or tractor etc., oil hydraulic pump from the swash plate to hydrostatic speed change gear being provided by the operation of bar contacts with base plate, when carrying out the work of hydraulic control motor, the surface of contact of above-mentioned swash plate is formed as plane of inclination, thus in neutral position, after base plate and swash plate carry out linear contact lay, face contact is carried out by the operation of bar, and start piston assembly body, thus in existing hydrostatic speed change gear without the need to too large structure modify, can be suitable for easily, time till making the behavior of hydraulic pressure installation postpone to contact from linear contact lay to face.
Claims (3)
1. a hydrostatic speed change gear swash plate, in hydrostatic speed change gear, in body (100), pump shaft (101) is configured in the mode of the hole of through central authorities (105), multiple base plate (103) is configured with the way of contact in a side (104) of the swash plate (102) of the annular of configuration centered by above-mentioned pump shaft (101), and multiple base plate (103) is connected with multiple piston assembly (106) respectively and configures with ring style, to be connected ground open and close valve device with the work of above-mentioned piston assembly, along with operating stem work, swash plate contacts with base plate, optionally make the multiple control valve unit work corresponding with piston assembly (106), carry out drive motor,
The feature of above-mentioned hydrostatic speed change gear swash plate is,
With the inner side surface of above-mentioned base plate (103) above-mentioned swash plate (102) in opposite directions, to be more formed obliquely away from the mode of base plate the closer to the outside of radial direction from the adjacent part in the hole (105) with central authorities,
Above-mentioned base plate carries out linear contact lay in the part that the hole (105) of the central authorities with swash plate is adjacent with swash plate,
In the neutral position that motor is static, the time that under the state of carrying out linear contact lay at the swash plate tilted with the operation by operating stem along with base plate, delay face contacts carries out action, and the driving of motor is postponed.
2. want the hydrostatic speed change gear swash plate described in 1 according to right, it is characterized in that, being selected between 0.5 ° to 5.4 ° with the angle tilted away from the mode of base plate of above-mentioned swash plate.
3. want the hydrostatic speed change gear swash plate described in 1 or 2 according to right, it is characterized in that,
Centered by the virtual straight line connecting two fixing pins (110), the spring eye (115) of swash plate is formed respectively in both sides, to give to the running shaft of above-mentioned swash plate the tilt angle presetting angle, wherein, above-mentioned two fixing pins (110) are centered by the hole of above-mentioned central authorities (105), formed in both sides
Position in opposite directions the spring eye (117) of base plate is formed accordingly with the spring eye (115) of above-mentioned swash plate at a side (104) base plate in opposite directions (103) with swash plate, the two side portions of spring (120) to be inserted in respectively the mode mounting spring of the spring eye (115) of above-mentioned swash plate and the spring eye (117) of above-mentioned base plate, improve the restoring force of swash plate.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2012-0112982 | 2012-10-11 | ||
| KR20120112982 | 2012-10-11 | ||
| KR1020130002585A KR101256871B1 (en) | 2012-10-11 | 2013-01-09 | An improved swash plate for hydrostatic transmissions |
| KR10-2013-0002585 | 2013-01-09 | ||
| PCT/KR2013/004090 WO2014058120A1 (en) | 2012-10-11 | 2013-05-09 | Swashplate with improved structure for hydrostatic speed change device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103946542A CN103946542A (en) | 2014-07-23 |
| CN103946542B true CN103946542B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380001021.9A Active CN103946542B (en) | 2012-10-11 | 2013-05-09 | The swash plate of hydrostatic speed change gear modified node method |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101256871B1 (en) |
| CN (1) | CN103946542B (en) |
| WO (1) | WO2014058120A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101346298B1 (en) * | 2013-03-07 | 2013-12-31 | 하이드로텍(주) | Hydrostatic transmission having a self-neutral control device |
| CN107630809A (en) * | 2017-10-11 | 2018-01-26 | 中国航发西安动力控制科技有限公司 | A kind of swash plate for axial plunger pump |
| KR101867529B1 (en) | 2017-11-21 | 2018-06-14 | 황종원 | Piston pump |
| CN113565731B (en) * | 2021-08-08 | 2022-11-25 | 西南石油大学 | Carry on hydrogen compressor of plunger type pressurized cylinder |
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| JPH0643275U (en) * | 1992-11-17 | 1994-06-07 | カヤバ工業株式会社 | Piston pump |
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2013
- 2013-01-09 KR KR1020130002585A patent/KR101256871B1/en active IP Right Grant
- 2013-05-09 CN CN201380001021.9A patent/CN103946542B/en active Active
- 2013-05-09 WO PCT/KR2013/004090 patent/WO2014058120A1/en active Application Filing
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| JPS5979078A (en) * | 1982-10-27 | 1984-05-08 | Kayaba Ind Co Ltd | Variable type hydraulic actuator |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR101256871B1 (en) | 2013-04-23 |
| CN103946542A (en) | 2014-07-23 |
| WO2014058120A1 (en) | 2014-04-17 |
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