CN109026875A - A kind of unloading mechanism of hydraulic steering gear - Google Patents
A kind of unloading mechanism of hydraulic steering gear Download PDFInfo
- Publication number
- CN109026875A CN109026875A CN201810986392.1A CN201810986392A CN109026875A CN 109026875 A CN109026875 A CN 109026875A CN 201810986392 A CN201810986392 A CN 201810986392A CN 109026875 A CN109026875 A CN 109026875A
- Authority
- CN
- China
- Prior art keywords
- hole
- screw
- steel ball
- plug screw
- unloading mechanism
- 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- Withdrawn
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 44
- 239000010959 steel Substances 0.000 claims abstract description 44
- 238000010586 diagram Methods 0.000 description 5
- 239000010720 hydraulic oil Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Power Steering Mechanism (AREA)
Abstract
The invention discloses a kind of unloading mechanisms of hydraulic steering gear, including shell, steering screw, steering nut, first chamber, second chamber, first steel ball, second steel ball and plug screw, steering screw end surface is provided with positioning pin, one end of plug screw is internally provided with through hole, the external screw thread of plug screw end and the internal thread hole of steering nut are cooperatively connected, the internal thread hole of the plug screw other end and the external screw thread of valve seat one end are cooperatively connected, through hole connecting hole inside plug screw is connected with the internal thread hole of the plug screw other end, valve seat is internally provided with step through-hole, first steel ball is set at the port of connecting hole, first steel ball is connected by connecting spring with the second steel ball for being set to step through-hole, second steel ball is set in the macropore of step through-hole, the stop screw extended into second chamber is provided on shell, the present invention uses a set of Unloading mechanism occupies little space, and solves the problems, such as small cylinder diameter product placement position-limit mechanism insufficient space.
Description
Technical field
The present invention relates to automobile steering device technology fields, and in particular to a kind of unloading mechanism of hydraulic steering gear.
Background technique
In existing automobile hydraulic power-driven steering gear unloading mechanism, upper and lower each a set of unloading valve of stroke, when product is run to
Unloading valve off-load above when downlink way limit, when product runs to uplink way limit, the unloading valve off-load of lower part is such to unload
Not only structure is complicated for lotus valve, and cylindrically coiled spring stability is poor, is easy clamping stagnation, and the product for some diameters less than φ 80 does not have
There is the space of arrangement unloading valve.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of structure is simple, the small hydraulic steering gear of arrangement space is occupied
Unloading mechanism.
To realize above-mentioned target, the technical solution of the present invention is as follows: a kind of unloading mechanism of hydraulic steering gear, including shell,
Steering screw, steering nut, first chamber, second chamber, the first steel ball, the second steel ball and plug screw, it is characterised in that: turn to spiral shell
Rod end surface is provided with positioning pin, and one end of plug screw is internally provided with through hole, and the outer surface of the end is provided with external screw thread,
The external screw thread of plug screw end and the internal thread hole of steering nut are cooperatively connected, internal thread hole and valve seat one end of the plug screw other end
External screw thread is cooperatively connected, and the through hole inside plug screw one end passes through the connecting hole being arranged inside plug screw and the interior spiral shell of the plug screw other end
Pit is connected, and valve seat is internally provided with step through-hole, and one end of the first steel ball is set at the port of connecting hole, and the other end prolongs
It protruding into the macropore of step through-hole, the first steel ball is connected by connecting spring with the second steel ball for being set to step through-hole, the
Two steel ball one end are set in the macropore of step through-hole, and the other end extends into the aperture of step through-hole, is provided with and prolongs on shell
Protrude into the stop screw in second chamber.
Further, positioning pin is elastic cylindrical pin, and elastic cylindrical pin and steering screw end are interference fit connection.
Further, it is connect at the port for the connecting hole being arranged inside the plug screw contacted with the first steel ball and with the second steel ball
It is tapered surface at the port of the aperture for the step through-hole being arranged inside the valve seat of touching.
Further, connecting spring is dolioform spring.
Further, the end for turning to screw is provided with circular groove, and the outer surface of plug screw is provided with ring baffle, annular
The one side of baffle be located in the surface of annular groove.
Further, ring baffle is integrated with plug screw and connect.
Further, annular surface is provided with blind hole, and the ring baffle on blind hole surface folds in blind hole.
Compared with prior art, the invention has the following advantages that
1. unloading mechanism is arranged in nut end, and uses a set of unloading mechanism, occupies little space, solve small cylinder diameter product cloth
The problem of setting position-limit mechanism insufficient space, structure is simple, is easy to arrange.
2. unloading valve replaces mandril with 2 steel balls, it is arranged symmetrically, structure is simple.
3. the spring of unloading valve is that dolioform and spring is shorter, good operation stability eliminates stuck risk.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of unloading mechanism in the prior art；
Fig. 2 is structural schematic diagram of the invention；
Fig. 3 is the partial enlarged view A of Fig. 2；
Fig. 4 is the structural schematic diagram of plug screw；
Fig. 5 is the structural schematic diagram of valve seat；
Fig. 6 is the structural schematic diagram of steering nut；
Fig. 7 is the right view of Fig. 6.
Drawing explanation: 1, shell, 2, steering screw, 3, steering nut, 4, first chamber, 5, second chamber, the 6, first steel
Ball, the 7, second steel ball, 8, plug screw, 9, positioning pin, 10, through hole, 11, connecting hole, 12, step through-hole, 13, macropore, 14, small
Hole, 15, stop screw, 16, tapered surface, 17, blind hole, 18, circular groove, 19, ring baffle, 20, valve seat, 21, connecting spring.
Specific embodiment
In the description of the present invention, it is to be understood that, term " longitudinal direction ", " transverse direction ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown is merely for convenience of the description present invention, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In conjunction with attached drawing, the technical schemes of the invention are described in detail, a kind of unloading mechanism of hydraulic steering gear, including shell 1,
Steering screw 2, steering nut 3, first chamber 4, second chamber 5, the first steel ball 6, the second steel ball 7 and plug screw 8, steering screw end
Portion surface is provided with positioning pin 9, and one end of plug screw is internally provided with through hole 10, and the outer surface of the end is provided with external screw thread,
The external screw thread of plug screw end and the internal thread hole of steering nut are cooperatively connected, the internal thread hole of the plug screw other end and 20 one end of valve seat
External screw thread be cooperatively connected, the through hole inside plug screw one end passes through the connecting hole 11 that is arranged inside plug screw and the plug screw other end
Internal thread hole is connected, and valve seat is internally provided with step through-hole 12, and one end of the first steel ball is set at the port of connecting hole, separately
One end extends into the macropore 13 of step through-hole, and the first steel ball passes through connecting spring 21 and the second steel ball for being set to step through-hole
It is connected, connecting spring is in compressive state at this time, and second steel ball one end is set in the macropore of step through-hole, and the other end extends
Enter in the aperture 14 of step through-hole, the stop screw 15 extended into second chamber be provided on shell, when steering nut to the left
It is in the open state under the action of the pressure of hydraulic oil of the second steel ball of setting inside second chamber in valve seat when movement,
The aperture of valve seat is set to be connected with second chamber, at this time because connecting spring is in compressive state, connecting spring squeezes the first steel ball,
It is in the first steel ball and closes device, the macropore of first chamber and valve seat is partition state at this time, and steering nut is constantly transported to the left
Dynamic, the thrust of the first steel ball to the right is touched and given to the positioning pin being arranged on steering screw, makes the macropore of first chamber and valve seat
Become connected state, and then first chamber is made to be connected with second chamber, the hydraulic oil in high pressure conditions in second chamber
Enter to first chamber by valve seat and plug screw, reach off-load purpose, when steering nut moves right, be arranged in valve seat the
It is in the open state under the action of the pressure of hydraulic oil of one steel ball inside first chamber, make the macropore and first chamber of valve seat
It is connected, at this time because connecting spring is in compressive state, connecting spring squeezes the second steel ball, is in the second steel ball and closes dress
It sets, the aperture of second chamber and valve seat is partition state at this time, and steering nut constantly moves right, the limit spiral shell being arranged on shell
Nail is touched and gives the thrust of the second steel ball to the left, so that the aperture of second chamber and valve seat is become connected state, and then make first
Chamber is connected with second chamber, and the hydraulic oil in high pressure conditions in first chamber enters to second by valve seat and plug screw
Chamber reaches off-load purpose.
Positioning pin is elastic cylindrical pin, and elastic cylindrical pin and steering screw end are interference fit connection, passes through Elastic Circular
Elasticity and the steering screw of pin form certain tension, loosen elastic cylindrical pin will not, the plug screw contacted with the first steel ball
The end of the aperture for the step through-hole being arranged inside the valve seat contacted at the port of the connecting hole of inside setting and with the second steel ball
It is tapered surface 16 at mouthful, the sealing effect of the first steel ball or the second steel ball can be made more preferable, connecting spring is dolioform spring, can
The stability for effectively increasing mechanism operation, solves the problems, such as that the spring unstability of existing product causes steel ball to be stuck, and turns
The end of screw is provided with circular groove 18, the outer surface of plug screw is provided with ring baffle, the side surface buckle of ring baffle 19
It is located at the surface of annular groove, ring baffle can be integrated with plug screw and connect, and the side of ring baffle be located in annular groove bottom
The surface in portion forms end face seal, the company that cooperate the hydraulic oil in first chamber will not along steering nut and bolt directly
It connecing screw thread and leaks to second chamber, annular surface is provided with blind hole 17, and the ring baffle on blind hole surface folds in blind hole,
Relative to the effect of end face seal, ring baffle is folded in blind hole, enhances the anti-loosing effect of screw thread, make whole device by
To when shock and vibration, the side of ring baffle and annular groove bottom surface can be also bonded well, more effectively be enhanced
Sealing effect.
Basic principle of the invention, main feature and advantage has been shown and described above, do not depart from spirit of that invention and
Under the premise of range, there are also various changes and modifications, these changes and improvements to both fall within claimed invention by the present invention
Range.
Claims (7)
1. a kind of unloading mechanism of hydraulic steering gear, including shell, steering screw, steering nut, first chamber, second chamber,
First steel ball, the second steel ball and plug screw, it is characterised in that: steering screw end surface is provided with positioning pin, in one end of plug screw
Portion is provided with hole, and the outer surface of the end is provided with external screw thread, the external screw thread of plug screw end and the internal screw thread of steering nut
Hole is cooperatively connected, and the internal thread hole of the plug screw other end and the external screw thread of valve seat one end are cooperatively connected, passing through inside plug screw one end
Hole is connected by the connecting hole being arranged inside plug screw with the internal thread hole of the plug screw other end, and it is logical that valve seat is internally provided with step
The one end in hole, the first steel ball is set at the port of connecting hole, and the other end extends into the macropore of step through-hole, and the first steel ball is logical
It crosses connecting spring and is connected with the second steel ball for being set to step through-hole, second steel ball one end is set to the macropore of step through-hole
In, the other end extends into the aperture of step through-hole, and the stop screw extended into second chamber is provided on shell.
2. a kind of unloading mechanism of hydraulic steering gear according to claim 1, it is characterised in that: positioning pin is elastic cylinder
Pin, elastic cylindrical pin and steering screw end are interference fit connection.
3. according to a kind of unloading mechanism of hydraulic steering gear according to claim 1, it is characterised in that: connect with the first steel ball
The step through-hole being arranged inside the valve seat contacted at the port for the connecting hole being arranged inside the plug screw of touching and with the second steel ball
It is tapered surface at the port of aperture.
4. according to a kind of unloading mechanism of hydraulic steering gear according to claim 1, it is characterised in that: connecting spring is waist
Barrel-shaped spring.
5. a kind of unloading mechanism of hydraulic steering gear according to claim 1, it is characterised in that: the end for turning to screw is set
It is equipped with circular groove, the outer surface of plug screw is provided with ring baffle, and the one side of ring baffle be located in the surface of annular groove.
6. a kind of unloading mechanism of hydraulic steering gear according to claim 5, it is characterised in that: ring baffle is with plug screw
Integrally connected.
7. a kind of unloading mechanism of hydraulic steering gear according to claim 5, it is characterised in that: annular surface setting
There is blind hole, the ring baffle on blind hole surface folds in blind hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810986392.1A CN109026875A (en) | 2018-08-28 | 2018-08-28 | A kind of unloading mechanism of hydraulic steering gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810986392.1A CN109026875A (en) | 2018-08-28 | 2018-08-28 | A kind of unloading mechanism of hydraulic steering gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109026875A true CN109026875A (en) | 2018-12-18 |
Family
ID=64625472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810986392.1A Withdrawn CN109026875A (en) | 2018-08-28 | 2018-08-28 | A kind of unloading mechanism of hydraulic steering gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109026875A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000038148A (en) * | 1998-07-24 | 2000-02-08 | Toyota Autom Loom Works Ltd | Vehicular solenoid valve, hydraulic power steering device and vehicle |
| CN2500791Y (en) * | 2001-06-29 | 2002-07-17 | 江汉石油钻头股份有限公司 | Oil storage device for roller bit |
| TWM259863U (en) * | 2004-07-06 | 2005-03-21 | Easylink Ind Co Ltd | T-type screw nut |
| CN201982464U (en) * | 2011-04-26 | 2011-09-21 | 陈安力 | Antitheft self-locking nut |
| CN202966413U (en) * | 2012-12-17 | 2013-06-05 | 沙市久隆汽车动力转向器有限公司 | Power steering gear assembly with automatic unloading function |
| CN203856849U (en) * | 2014-06-05 | 2014-10-01 | 温州科腾紧固件有限公司 | Dodecagonal main shaft locking combined nut |
| CN204437431U (en) * | 2015-02-06 | 2015-07-01 | 潍坊力创电子科技有限公司 | The gas spray valve that accuracy of spray high response speed is fast |
| CN106246697A (en) * | 2016-08-31 | 2016-12-21 | 杨东佐 | A kind of fastening structure, it is fastenedly connected assembly, crankshaft connecting rod system |
| CN208870862U (en) * | 2018-08-28 | 2019-05-17 | 豫北转向系统（新乡）有限公司 | A kind of unloading mechanism of hydraulic steering gear |
-
2018
- 2018-08-28 CN CN201810986392.1A patent/CN109026875A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000038148A (en) * | 1998-07-24 | 2000-02-08 | Toyota Autom Loom Works Ltd | Vehicular solenoid valve, hydraulic power steering device and vehicle |
| CN2500791Y (en) * | 2001-06-29 | 2002-07-17 | 江汉石油钻头股份有限公司 | Oil storage device for roller bit |
| TWM259863U (en) * | 2004-07-06 | 2005-03-21 | Easylink Ind Co Ltd | T-type screw nut |
| CN201982464U (en) * | 2011-04-26 | 2011-09-21 | 陈安力 | Antitheft self-locking nut |
| CN202966413U (en) * | 2012-12-17 | 2013-06-05 | 沙市久隆汽车动力转向器有限公司 | Power steering gear assembly with automatic unloading function |
| CN203856849U (en) * | 2014-06-05 | 2014-10-01 | 温州科腾紧固件有限公司 | Dodecagonal main shaft locking combined nut |
| CN204437431U (en) * | 2015-02-06 | 2015-07-01 | 潍坊力创电子科技有限公司 | The gas spray valve that accuracy of spray high response speed is fast |
| CN106246697A (en) * | 2016-08-31 | 2016-12-21 | 杨东佐 | A kind of fastening structure, it is fastenedly connected assembly, crankshaft connecting rod system |
| CN208870862U (en) * | 2018-08-28 | 2019-05-17 | 豫北转向系统（新乡）有限公司 | A kind of unloading mechanism of hydraulic steering gear |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105240442B (en) | Oil damper | |
| CN105765262B (en) | Buffer | |
| CN208870862U (en) | A kind of unloading mechanism of hydraulic steering gear | |
| CN110608208A (en) | Buffering formula energy storage ware | |
| CN101865178A (en) | Two-stage hydraulic cylinder | |
| CN105465443A (en) | Normally closed electric explosion valve | |
| CN109026875A (en) | A kind of unloading mechanism of hydraulic steering gear | |
| CN105673758A (en) | Gas supplementing type gas spring | |
| CN205446530U (en) | Cylinder body bumper shock absorber that dual spring is adjustable | |
| CN107387491B (en) | Double-action hydraulic mechanism, multi-stage expansion hydraulic mechanism and hydraulic support | |
| CN209083885U (en) | A kind of two-way resistance damper | |
| CN104728336B (en) | Inversion type front buffer gear in motorcycle | |
| CN103104482A (en) | Pump rod structure used for plunger pump | |
| CN207648288U (en) | A kind of automobile pipe fitting | |
| CN205277970U (en) | Stable form pneumatic cylinder structure | |
| CN206860523U (en) | A kind of high leakproofness industry oil pump shaft | |
| CN207701508U (en) | A kind of bottom structure for locking mechanism with bidirectional hydraulic | |
| CN102889262B (en) | Combined type hydraulic cylinder with floating cylinder barrel | |
| CN105221515B (en) | A kind of integrated hydraulic cylinder with two-way travel limitation | |
| CN207229845U (en) | T-shaped check-valves | |
| CN105782535B (en) | Pull-type charge valve in one kind | |
| CN203516290U (en) | Hydraulic oil cylinder provided with buffer device | |
| CN206268520U (en) | A kind of hydraulic control one-way valve | |
| CN109282047A (en) | A kind of conical surface shut-off valve | |
| CN207261702U (en) | Split type the throttle valve lever device and its component of clay gun angling cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 2398 Muye Avenue, high tech Zone, Xinxiang City, Henan Province Applicant after: North Henan Steering System (Xinxiang) Co.,Ltd. Address before: No. 322, Heping Avenue, Xinxiang City, Henan Province, 453000 Applicant before: YUBEI STEERING SYSTEM (XINXIANG) CO.,LTD. |
|
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181218 |