CN109458428B - Damping piston debugging tool - Google Patents
Damping piston debugging tool Download PDFInfo
- Publication number
- CN109458428B CN109458428B CN201811628090.3A CN201811628090A CN109458428B CN 109458428 B CN109458428 B CN 109458428B CN 201811628090 A CN201811628090 A CN 201811628090A CN 109458428 B CN109458428 B CN 109458428B
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- CN
- China
- Prior art keywords
- sealing cover
- adjusting
- damping piston
- screw
- rod
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- 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.)
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- 238000013016 damping Methods 0.000 title claims abstract description 79
- 238000007789 sealing Methods 0.000 claims abstract description 100
- 230000006835 compression Effects 0.000 claims abstract description 3
- 238000007906 compression Methods 0.000 claims abstract description 3
- 239000006096 absorbing agent Substances 0.000 abstract description 12
- 230000035939 shock Effects 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000003825 pressing Methods 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 description 14
- 238000012360 testing method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3214—Constructional features of pistons
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
- F16F2228/06—Stiffness
- F16F2228/066—Variable stiffness
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention provides a damping piston debugging tool. Comprises a screw rod, a first sealing cover, a second sealing cover and an adjusting device; the damping piston is clamped between the first sealing cover and the second sealing cover; the screw rod is provided with a limiting ring, passes through the first sealing cover and the damping piston and is connected with the second sealing cover so as to clamp the damping piston. The adjusting device comprises at least one adjusting single piece, wherein the adjusting single piece comprises an adjusting rod, a locking nut and a return spring; the second end of the adjusting rod is connected with the adjusting screw through the compression return spring and drives the adjusting screw to act so as to adjust the flow of the adjusting valve. According to the invention, the end part of the adjusting rod of the adjusting device is provided with the inner hexagonal groove matched with the adjusting valve of the damping piston, and the flow of the damping piston can be adjusted by pressing and rotating the adjusting rod, so that the damping force is controlled, and the accuracy of the damping performance and the production efficiency of the shock absorber are improved.
Description
Technical Field
The invention relates to the technical field of hydraulic transmission, in particular to a damping piston debugging tool.
Background
The oil pressure shock absorber is used as an important part of various vehicles, and the damping characteristic of the oil pressure shock absorber directly influences the safety, stability and comfort of the running of the vehicle. The damping piston is an important component structure for generating damping force of the oil pressure shock absorber, can efficiently and accurately adjust the required damping force, and is important to the performance and production of the oil pressure shock absorber. In the prior art, the damping force of the oil pressure shock absorber of the type is regulated by testing once on a test bed, then the shock absorber is disassembled, the damping piston is regulated, then the shock absorber is assembled, and then the test bed is used for testing until the damping force of the oil pressure shock absorber meets the requirement. This severely affects the efficiency and accuracy of damping force adjustment of this type of oil pressure shock absorber.
In summary, a damping piston debugging tool is urgently needed to solve the problems existing in the prior art.
Disclosure of Invention
The invention aims to provide a damping piston debugging tool for solving the problem of adjusting a damping piston.
In order to achieve the aim, the invention provides a damping piston debugging tool which comprises a screw, a first sealing cover, a second sealing cover and an adjusting device; the damping piston is clamped between the first sealing cover and the second sealing cover; the screw rod is provided with a limiting ring, passes through the first sealing cover and the damping piston and is connected with the second sealing cover so as to clamp the damping piston.
The adjusting device comprises at least one adjusting single piece, wherein the adjusting single piece comprises an adjusting rod, a locking nut and a return spring; the first end of the adjusting rod penetrates through the end face of the first sealing cover or the second sealing cover from the annular groove of the first sealing cover or the second sealing cover outwards, and the first end of the adjusting rod is connected with the locking nut; the second end of the adjusting rod is matched with an adjusting screw of an adjusting valve on the damping piston; the return spring is sleeved on the adjusting rod, one end of the return spring is abutted against the locking nut, and the other end of the return spring is abutted against the outer end face of the first sealing cover or the second sealing cover; the second end of the adjusting rod is connected with the adjusting screw through the compression return spring and drives the adjusting screw to act so as to adjust the flow of the adjusting valve.
Preferably, the regulating valves on the regulating single piece and the damping piston are arranged in a one-to-one correspondence.
Preferably, the end face of the first sealing cover or the second sealing cover, which is contacted with the damping piston, is provided with an annular dovetail groove for accommodating the sealing ring.
Preferably, the first sealing cover or the second sealing cover is provided with a threaded hole communicated with the annular groove for being connected with the oil pipe.
Preferably, the inner wall of the through hole matched with the adjusting rod is provided with an annular groove for accommodating the sealing ring.
Preferably, the screw end has an internally threaded bore; and one end of the second sealing cover is provided with a positioning shaft, the positioning shaft is matched with a positioning hole on the damping piston, a connecting shaft is arranged on the positioning shaft, and an external thread matched with the internal thread hole is arranged on the connecting shaft.
Preferably, the second end of the adjusting rod is provided with an inner hexagonal groove matched with the adjusting screw.
The technical scheme of the invention has the following beneficial effects:
(1) According to the invention, the end part of the adjusting rod of the adjusting device is provided with the inner hexagonal groove matched with the adjusting valve of the damping piston, and the flow of the damping piston can be adjusted by pressing and rotating the adjusting rod, so that the damping force is controlled, and the accuracy of the damping performance and the production efficiency of the shock absorber are improved.
(2) The adjusting device is provided with the return spring, and the adjusting rod can return automatically under the action of the return spring; when the regulating valve is in an open state, the regulating screw on the regulating valve can be jacked up, and interference of the regulating rod on the opening of the regulating valve can be avoided by arranging the return spring; the end part of the adjusting rod is connected with a locking nut, and the resilience force of the return spring can be adjusted by screwing or unscrewing the locking nut.
(3) According to the invention, the screw is in threaded connection with the second sealing cover, so that the damping piston is clamped between the first sealing cover and the second sealing cover, dovetail grooves for accommodating the rubber rings are formed in the ends of the first sealing cover and the second sealing cover, the rubber rings can be prevented from falling off, annular grooves for accommodating the rubber rings are formed in the joints of the first sealing cover and the second sealing cover and the adjusting device, the tightness of the tool is improved, and the leakage of oil is reduced.
In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of the overall structure of a debugging tool;
FIG. 2 is a schematic view of a screw structure;
FIG. 3 is a schematic diagram of a second structure of the sealing cover;
FIG. 4 is a schematic view of an adjusting device;
FIG. 5 is a schematic view of a damping piston structure;
the device comprises a screw, 1.1, a limiting ring, 1.2, an internal threaded hole, 2, a first sealing cover, 3, a second sealing cover, 3.1, a positioning shaft, 3.2, a connecting shaft, 4, an adjusting device, 4.1, an adjusting rod, 4.1.1, an inner hexagonal groove, 4.2, a locking nut, 4.3, a return spring, 5, a damping piston, 5.1, an adjusting valve, 5.1.1, an adjusting screw, 5.1.2, a nut, 5.1.3, a spring, 5.2 and a positioning hole.
Detailed Description
Embodiments of the invention are described in detail below with reference to the attached drawings, but the invention can be implemented in a number of different ways, which are defined and covered by the claims.
Example 1:
referring to fig. 1 to 5, a damping piston debugging tool is applied to adjusting a damping force of a damping piston.
A damping piston debugging tool comprises a screw 1, a first sealing cover 2, a second sealing cover 3 and an adjusting device 4; the damping piston 5 is clamped between the first sealing cover 2 and the second sealing cover 3; the screw rod 1 is provided with a limiting ring 1.1, the screw rod 1 penetrates through the first sealing cover 2 and the damping piston 5 to be connected with the second sealing cover 3 for clamping the damping piston 5, the damping piston 5 comprises a body with a positioning hole 5.2 and an adjusting valve 5.1 arranged on the body, as shown in fig. 5, the adjusting valve 5.1 comprises an adjusting screw 5.1.1, a nut 5.1.2 and a spring 5.1.3, the nut 5.1.2 is connected with the end face of the body of the damping piston 5 so as to limit the nut 5.1.2 to axially rotate, and the adjusting screw 5.1.1 can be jacked up to realize the opening and closing of the adjusting valve under the action of oil impact force.
The adjusting device 4 comprises two groups of adjusting single pieces, and the adjusting single pieces and adjusting valves on the damping pistons are arranged in a one-to-one correspondence manner; the adjusting single piece comprises an adjusting rod 4.1, a locking nut 4.2 and a return spring 4.3; the first end of a first group of adjusting rods 4.1 of the first adjusting single piece penetrates through the end face of the first sealing cover 2 or the second sealing cover 3 from the annular groove of the first sealing cover 2 or the second sealing cover 3 outwards, and the first end of the adjusting rods 4.1 is connected with the locking nut 4.2; the second end of the adjusting rod 4.1 is provided with an inner hexagonal groove 4.1.1; the return spring 4.3 is sleeved on the adjusting rod 4.1, one end of the return spring 4.3 is abutted against the locking nut 4.2, and the other end is abutted against the outer end face of the sealing cover II 3; the lock nut 4.2 is used for adjusting the resilience force of the return spring 4.3; the inner hexagonal groove 4.1.1 is matched with an adjusting screw 5.1.1 of an adjusting valve 5.1 on the damping piston 5, and the adjusting rod 4.1 is used for adjusting the flow of the adjusting valve 5.1 when being pressed down.
The first end of a second group of adjusting rods 4.1 of the single adjusting piece penetrates through the end face of the first sealing cover 2 or the second sealing cover 3 from the annular groove of the first sealing cover 2 or the second sealing cover 3 outwards, and the first end of the adjusting rods 4.1 is connected with the locking nut 4.2; the second end of the adjusting rod 4.1 is provided with an inner hexagonal groove 4.1.1; the return spring 4.3 is sleeved on the adjusting rod 4.1, one end of the return spring 4.3 is abutted against the locking nut 4.2, and the other end is abutted against the outer end face of the sealing cover II 3; the lock nut 4.2 is used for adjusting the resilience force of the return spring 4.3; the inner hexagonal groove 4.1.1 is matched with an adjusting screw 5.1.1 of an adjusting valve 5.1 on the damping piston 5, and the adjusting rod 4.1 is used for adjusting the flow of the adjusting valve 5.1 when being pressed down.
The end face of the first sealing cover 2 or the second sealing cover 3, which is in contact with the damping piston 5, is provided with an annular dovetail groove for accommodating a sealing ring. And the first sealing cover 2 or the second sealing cover 3 is provided with a threaded hole communicated with the annular groove for being connected with an oil pipe. An annular groove is formed in the inner wall of the through hole matched with the adjusting rod 4.1 and used for accommodating the sealing ring, and the sealing cover I2 or the sealing cover II 3 is matched with the adjusting rod 4.1.
The end of the screw 1 is provided with an internally threaded hole 1.2. One end of the second sealing cover 3 is provided with a positioning shaft 3.1, the positioning shaft 3.1 is matched with a positioning hole 5.2 on the damping piston 5, the positioning shaft 3.1 is provided with a connecting shaft 3.2, and the connecting shaft 3.2 is provided with external threads matched with the internal threaded hole 1.2.
The application method of the damping piston debugging tool comprises the following steps:
(1) Sealing rings are embedded in dovetail grooves of the first sealing cover and the second sealing cover;
(2) Two adjusting rods penetrate through the end faces of the first sealing cover and the second sealing cover respectively, one end of each adjusting rod with an inner hexagonal groove is arranged in the annular groove, a return spring is sleeved on each adjusting rod, a locking nut is screwed on each adjusting rod, and the resilience force of the return spring is adjusted;
(3) The damping piston is placed on the second sealing cover, the positioning hole on the damping piston is matched with the positioning shaft on the second sealing cover, the first sealing cover is placed on the other side of the damping piston, the damping piston is clamped between the first sealing cover and the second sealing cover, the screw rod penetrates through the first sealing cover, the inner threaded hole of the screw rod is matched with the connecting shaft of the second sealing cover, and the screw rod is screwed up, so that the tightness of the tool is ensured;
(4) The adjusting rod is pressed down, so that the inner hexagonal groove of the adjusting rod is matched with the adjusting screw of the adjusting valve, the adjusting rod is rotated to drive the adjusting screw to rotate, the telescopic stroke of the spring is further adjusted, the opening size of the adjusting valve is changed, and therefore flow adjustment of the damping piston is achieved.
In the damping piston debugging tool, the adjusting rod end part of the adjusting device is provided with the inner hexagonal groove matched with the adjusting valve of the damping piston, and the flow of the damping piston can be adjusted by pressing and rotating the adjusting rod, so that the damping force is controlled, and the damping performance accuracy and the production efficiency of the shock absorber are improved.
The adjusting device of the damping piston debugging tool is provided with the return spring, and the adjusting rod can return automatically under the action of the return spring; when the regulating valve is in an open state, the regulating screw on the regulating valve can be jacked up, and interference of the regulating rod on the opening of the regulating valve can be avoided by arranging the return spring; the end part of the adjusting rod is connected with a locking nut, and the resilience force of the return spring can be adjusted by screwing or unscrewing the locking nut.
In the damping piston debugging tool, the screw rod is in threaded connection with the sealing cover II, so that the damping piston is clamped between the sealing cover I and the sealing cover II, dovetail grooves for accommodating the rubber rings are formed in the end parts of the sealing cover I and the sealing cover II, the rubber rings can be prevented from falling off, annular grooves for accommodating the rubber rings are formed in the joint of the sealing cover I and the sealing cover II and the adjusting device, the tightness of the tool is improved, and leakage of oil is reduced.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The damping piston debugging tool is characterized by comprising a screw (1), a first sealing cover (2), a second sealing cover (3) and an adjusting device (4); the damping piston (5) is clamped between the first sealing cover (2) and the second sealing cover (3); a limiting ring (1.1) is arranged on the screw rod (1), and the screw rod (1) penetrates through the first sealing cover (2) and the damping piston (5) to be connected with the second sealing cover (3) so as to clamp the damping piston (5);
the adjusting device (4) comprises at least one adjusting single piece, which comprises an adjusting rod (4.1), a locking nut (4.2) and a return spring (4.3); the first end of the adjusting rod (4.1) outwards penetrates through the end face of the first sealing cover (2) or the second sealing cover (3) from the annular groove of the first sealing cover (2) or the second sealing cover (3), and the first end of the adjusting rod (4.1) is connected with the locking nut (4.2); the second end of the adjusting rod (4.1) is matched with an adjusting screw (5.1.1) of an adjusting valve (5.1) on the damping piston (5); the return spring (4.3) is sleeved on the adjusting rod (4.1), one end of the return spring (4.3) is abutted against the locking nut (4.2), and the other end is abutted against the outer end face of the first sealing cover (2) or the second sealing cover (3); the second end of the adjusting rod (4.1) is connected with the adjusting screw (5.1.1) through the compression return spring (4.3) and drives the adjusting screw (5.1.1) to act so as to adjust the flow of the adjusting valve (5.1).
2. Damping piston debugging tooling according to claim 1, characterized in that the adjusting valves (5.1) on the adjusting single piece and the damping piston (5) are arranged in a one-to-one correspondence.
3. The damping piston debugging tool according to claim 2, wherein the end face of the first sealing cover (2) or the second sealing cover (3) contacted with the damping piston (5) is provided with an annular dovetail groove for accommodating a sealing ring.
4. The damping piston debugging tool according to claim 3, wherein the first sealing cover (2) or the second sealing cover (3) is provided with a threaded hole communicated with the annular groove for being connected with an oil pipe.
5. The damping piston debugging tool according to claim 4, wherein an annular groove is formed in the inner wall of the through hole matched with the adjusting rod (4.1) of the first sealing cover (2) or the second sealing cover (3) for accommodating the sealing ring.
6. The damping piston debugging tool according to claim 5, wherein the end of the screw (1) is provided with an internally threaded hole (1.2); one end of the sealing cover II (3) is provided with a positioning shaft (3.1), the positioning shaft (3.1) is matched with a positioning hole (5.2) on the damping piston (5), the positioning shaft (3.1) is provided with a connecting shaft (3.2), and the connecting shaft (3.2) is provided with external threads matched with the internal thread hole (1.2).
7. Damping piston debugging tool according to any one of claims 1-6, characterized in that the second end of the adjusting rod (4.1) is provided with an internal hexagonal groove (4.1.1) matching the adjusting screw (5.1.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811628090.3A CN109458428B (en) | 2018-12-28 | 2018-12-28 | Damping piston debugging tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811628090.3A CN109458428B (en) | 2018-12-28 | 2018-12-28 | Damping piston debugging tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109458428A CN109458428A (en) | 2019-03-12 |
| CN109458428B true CN109458428B (en) | 2024-03-12 |
Family
ID=65615705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811628090.3A Active CN109458428B (en) | 2018-12-28 | 2018-12-28 | Damping piston debugging tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109458428B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201973157U (en) * | 2010-12-30 | 2011-09-14 | 浙江万向系统有限公司 | Multistage damping piston valve of automobile vibration damper |
| CN203822930U (en) * | 2014-05-17 | 2014-09-10 | 刘广彬 | Oil pressure absorber for railway vehicle |
| CN105240442A (en) * | 2015-11-03 | 2016-01-13 | 株洲时代装备技术有限责任公司 | Oil damper |
| CN106195096A (en) * | 2016-08-30 | 2016-12-07 | 福鼎市金雄机车部件有限公司 | The damping cylinder of range-adjustable |
| CN108223671A (en) * | 2018-03-16 | 2018-06-29 | 株洲联诚集团控股股份有限公司 | New Damping adjusts unit and oil-pressure damper |
| CN207687252U (en) * | 2017-12-26 | 2018-08-03 | 长春理工大学 | Gas compensation formula MR vibration damper |
| CN108518443A (en) * | 2018-04-24 | 2018-09-11 | 湖南联诚轨道装备有限公司 | Anti- snake movement oil pressure shock absorber, track train and its design method of adaptive damping |
| CN209278387U (en) * | 2018-12-28 | 2019-08-20 | 湖南联诚轨道装备有限公司 | A kind of damping piston debugging tool |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6837344B2 (en) * | 2001-02-12 | 2005-01-04 | Delphi Technologies, Inc. | Piston and rod assembly for air-actuated variable damping |
| JP4919045B2 (en) * | 2007-04-19 | 2012-04-18 | 日立オートモティブシステムズ株式会社 | Damping force adjustable fluid pressure shock absorber |
| JP6013958B2 (en) * | 2013-03-27 | 2016-10-25 | Ｋｙｂ株式会社 | Suspension device |
-
2018
- 2018-12-28 CN CN201811628090.3A patent/CN109458428B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201973157U (en) * | 2010-12-30 | 2011-09-14 | 浙江万向系统有限公司 | Multistage damping piston valve of automobile vibration damper |
| CN203822930U (en) * | 2014-05-17 | 2014-09-10 | 刘广彬 | Oil pressure absorber for railway vehicle |
| CN105240442A (en) * | 2015-11-03 | 2016-01-13 | 株洲时代装备技术有限责任公司 | Oil damper |
| CN106195096A (en) * | 2016-08-30 | 2016-12-07 | 福鼎市金雄机车部件有限公司 | The damping cylinder of range-adjustable |
| CN207687252U (en) * | 2017-12-26 | 2018-08-03 | 长春理工大学 | Gas compensation formula MR vibration damper |
| CN108223671A (en) * | 2018-03-16 | 2018-06-29 | 株洲联诚集团控股股份有限公司 | New Damping adjusts unit and oil-pressure damper |
| CN108518443A (en) * | 2018-04-24 | 2018-09-11 | 湖南联诚轨道装备有限公司 | Anti- snake movement oil pressure shock absorber, track train and its design method of adaptive damping |
| CN209278387U (en) * | 2018-12-28 | 2019-08-20 | 湖南联诚轨道装备有限公司 | A kind of damping piston debugging tool |
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| Publication number | Publication date |
|---|---|
| CN109458428A (en) | 2019-03-12 |
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