CN116066505B - Shock absorber and vehicle - Google Patents
Shock absorber and vehicle Download PDFInfo
- Publication number
- CN116066505B CN116066505B CN202111274698.2A CN202111274698A CN116066505B CN 116066505 B CN116066505 B CN 116066505B CN 202111274698 A CN202111274698 A CN 202111274698A CN 116066505 B CN116066505 B CN 116066505B
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- oil
- cylinder
- solenoid valve
- intermediate cylinder
- shock absorber
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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
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/19—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
- F16F15/027—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means comprising control arrangements
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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
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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
- F16F9/3235—Constructional features of cylinders
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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
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
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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
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
- F16F9/346—Throttling passages in the form of slots arranged in cylinder walls
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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
- F16F9/36—Special sealings, including sealings or guides for piston-rods
- F16F9/369—Sealings for elements other than pistons or piston rods, e.g. valves
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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
- F16F9/54—Arrangements for attachment
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
本申请公开了一种减振器及车辆，减振器包括：储油缸，储油缸内具有储油腔，储油缸的侧壁设有与储油腔连通的安装口；中间缸，中间缸设在储油腔内，中间缸内具有第一腔室，中间缸的侧壁设有与第一腔室连通的侧孔，侧孔与安装口的位置相对应；电磁阀组件，电磁阀组件设在安装口处，且电磁阀组件的一部分伸入安装口与侧孔连通。本申请通过将电磁阀组件布置在储油缸的安装口处，将电磁阀组件的一部分伸入安装口与中间缸上的侧孔连通，实现油液在中间缸和电磁阀组件之间的流通，无需在中间缸上焊接电磁阀接头，防止中间缸因焊接变形，而导致中间缸和电磁阀组件无法装配和密封失效，有效降低成本和工艺制作难度。
The present application discloses a shock absorber and a vehicle, the shock absorber comprising: an oil storage cylinder, the oil storage cylinder having an oil storage cavity, the side wall of the oil storage cylinder being provided with an installation port connected to the oil storage cavity; an intermediate cylinder, the intermediate cylinder being provided in the oil storage cavity, the intermediate cylinder having a first chamber, the side wall of the intermediate cylinder being provided with a side hole connected to the first chamber, the side hole corresponding to the position of the installation port; an electromagnetic valve assembly, the electromagnetic valve assembly being provided at the installation port, and a part of the electromagnetic valve assembly extending into the installation port and connected to the side hole. The present application arranges the electromagnetic valve assembly at the installation port of the oil storage cylinder, and a part of the electromagnetic valve assembly extending into the installation port and connected to the side hole on the intermediate cylinder, so as to realize the circulation of oil between the intermediate cylinder and the electromagnetic valve assembly, without welding the electromagnetic valve joint on the intermediate cylinder, so as to prevent the intermediate cylinder from being deformed due to welding, which may cause the intermediate cylinder and the electromagnetic valve assembly to be unable to be assembled and the sealing to fail, and effectively reduce the cost and process difficulty.
Description
Technical Field
The application relates to the technical field of vehicle vibration reduction, in particular to a vibration absorber and a vehicle with the vibration absorber.
Background
In the existing vehicle shock absorber, an external electromagnetic valve is generally welded on an intermediate cylinder through an electromagnetic valve joint. The middle cylinder of the shock absorber is thinner, and the wall thickness is only about 1 mm. When the joint is welded on the middle cylinder, the middle cylinder is easy to deform in the welding process, so that the assembly and sealing of the middle cylinder and the electromagnetic valve are affected, the cost is high, and the process manufacturing difficulty is high.
Disclosure of Invention
The application aims to provide a novel technical scheme of a shock absorber and a vehicle, which at least can solve the problem that the shock absorber in the prior art is deformed due to the fact that an electromagnetic valve connector is required to be welded on an intermediate cylinder.
According to the first aspect of the application, a shock absorber is provided, which comprises an oil storage cylinder, a middle cylinder and a solenoid valve assembly, wherein an oil storage cavity is formed in the oil storage cylinder, a mounting port communicated with the oil storage cavity is formed in the side wall of the oil storage cylinder, the middle cylinder is arranged in the oil storage cavity and is internally provided with a first cavity, a side hole communicated with the first cavity is formed in the side wall of the middle cylinder, the side hole corresponds to the mounting port in position, and the solenoid valve assembly is arranged at the mounting port and extends into the mounting port to be communicated with the side hole.
Optionally, the electromagnetic valve assembly comprises an electromagnetic valve seat, an electromagnetic valve cover plate and an electromagnetic valve cover plate, wherein an installation cavity is defined in the electromagnetic valve seat, the electromagnetic valve seat is arranged at the installation opening, the electromagnetic valve is arranged on the electromagnetic valve seat, the electromagnetic valve cover plate is arranged at one end of the electromagnetic valve, which faces the intermediate cylinder, and the electromagnetic valve cover plate is provided with a valve hole, and the valve hole is communicated with the side hole.
Optionally, the intermediate cylinder is in the periphery of side opening is equipped with the boss, the solenoid valve apron is in the periphery of valve opening is equipped with the mounting groove, be equipped with first sealing washer in the mounting groove, the solenoid valve apron pass through the mounting groove with first sealing washer with the boss laminating is connected, so that the valve opening with the side opening is linked together.
Optionally, the shock absorber further comprises an oil blocking positioning sleeve, wherein the oil blocking positioning sleeve is sleeved on the outer wall of the middle cylinder, and the oil blocking positioning sleeve is attached to the inner wall of the oil storage cylinder.
Optionally, the oil blocking locating sleeve is provided with a notch and a limiting hole, the notch extends along the axial direction of the oil blocking locating sleeve, the limiting hole is formed in the side wall of the oil blocking locating sleeve, the limiting hole is communicated with the notch, and the limiting hole corresponds to the side hole in position.
Optionally, the position department of the inner wall and the outer wall of fender oil position sleeve is equipped with a plurality of first oilholes respectively, and is a plurality of first oilholes are followed keep off oil position sleeve's circumference interval distribution, fender oil position sleeve's lateral wall is equipped with a plurality of spaced apart hollow holes that distribute.
Optionally, a plurality of ribs are further arranged on the outer wall of the oil blocking positioning sleeve, and the ribs extend along the axial direction and the circumferential direction of the oil blocking positioning sleeve respectively.
Optionally, the shock absorber further comprises a working cylinder, the working cylinder is arranged in the middle cylinder, a second cavity is formed in the working cylinder, a connecting rod is arranged in the second cavity, the connecting rod is movable in the working cylinder, a bottom valve body and a guide sleeve are further arranged in the oil storage cylinder, the bottom valve body is provided with a first annular groove and a second annular groove, the first annular groove and the second annular groove are distributed in a stepped mode in the radial direction of the bottom valve body, the guide sleeve is provided with a second oil passing hole communicated with the second cavity, the guide sleeve is further provided with a third annular groove and a fourth annular groove, the third annular groove and the fourth annular groove are distributed in a stepped mode in the radial direction of the guide sleeve, the first annular groove and the third annular groove correspond to each other, two ends of the middle cylinder are connected with the first annular groove and the third annular groove respectively, the two ends of the working cylinder are connected with the second annular groove and the fourth annular groove respectively.
Optionally, the shock absorber further comprises a working cylinder, wherein a third oil passing hole is formed in the side wall of the working cylinder, grooves are formed in the two ends of the middle cylinder respectively, a second sealing ring is arranged in each groove respectively, the working cylinder is arranged in the middle cylinder, and the two ends of the working cylinder are connected with the grooves through the second sealing rings respectively.
According to a second aspect of the present application, there is provided a vehicle comprising the shock absorber described in the above embodiment.
According to one embodiment of the disclosure, through arranging the solenoid valve assembly at the mounting port of the oil storage cylinder, a part of the solenoid valve assembly stretches into the mounting port to be communicated with the side hole on the intermediate cylinder, so that oil circulation between the intermediate cylinder and the solenoid valve assembly is realized, a solenoid valve connector is not required to be welded on the intermediate cylinder, the intermediate cylinder is prevented from being deformed due to welding, and the intermediate cylinder and the solenoid valve assembly cannot be assembled and are in sealing failure, so that cost and process manufacturing difficulty are effectively reduced.
Other features of the present application and its advantages will become apparent from the following detailed description of exemplary embodiments of the application, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.
FIG. 1 is a cross-sectional view of a shock absorber of the present invention;
FIG. 2 is an enlarged view of a portion of area A of FIG. 1;
FIG. 3 is a schematic structural view of a solenoid valve of the shock absorber of the present invention;
FIG. 4 is a schematic illustration of an assembly of the oil retaining collar and intermediate cylinder of the shock absorber of the present invention;
FIG. 5 is a further schematic assembly of the oil deflector positioning sleeve and intermediate cylinder of the shock absorber of the present invention;
FIG. 6 is a cross-sectional view of the damper of the present invention after assembly with the intermediate cylinder and the oil retaining collar;
FIG. 7 is a cross-sectional view of the shock absorber of the present invention in position with an oil retaining collar;
FIG. 8 is a side view of the oil retaining collar of the shock absorber of the present invention;
FIG. 9 is another side view of the oil retaining collar of the shock absorber of the present invention;
fig. 10 is a cross-sectional view of an oil deflector positioning sleeve of a shock absorber of the present invention.
Reference numerals:
Shock absorber 100;
A reserve cylinder 10;
a middle cylinder 20, a boss 21, a side hole 22;
Solenoid valve assembly 30, solenoid valve seat 31, solenoid valve 32, solenoid valve cover 33, valve hole 34, mounting groove 35, first seal ring 36;
the oil retaining positioning sleeve 40, the notch 41, the limiting hole 42, the first oil passing hole 43, the hollowed hole 44 and the rib 45;
A working cylinder 50, a second chamber 51, a connecting rod 52;
a bottom valve body 60, a first ring groove 61, a second ring groove 62;
a guide sleeve 70, a third ring groove 71, a fourth ring groove 72, a second oil passing hole 73;
a blocking cover 81, and a mounting member 82.
Detailed Description
Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
A shock absorber 100 according to an embodiment of the present invention is described in detail below with reference to the accompanying drawings.
As shown in fig. 1, a shock absorber 100 according to an embodiment of the present invention includes a reserve tube 10, an intermediate tube 20, and a solenoid valve assembly 30.
Specifically, the oil storage chamber is provided in the oil storage cylinder 10, and a mounting port communicating with the oil storage chamber is provided in a side wall of the oil storage cylinder 10. The intermediate cylinder 20 is arranged in the oil storage cavity, a first cavity is arranged in the intermediate cylinder 20, a side hole 22 communicated with the first cavity is arranged on the side wall of the intermediate cylinder 20, and the side hole 22 corresponds to the position of the mounting hole. The solenoid valve assembly 30 is disposed at the mounting port, and a portion of the solenoid valve assembly 30 extends into the mounting port to communicate with the side bore 22.
In other words, referring to fig. 1, the shock absorber 100 according to the embodiment of the present invention is a damping-adjustable shock absorber 100. Shock absorber 100 is primarily comprised of a reserve tube 10, a middle tube 20 and a solenoid valve assembly 30. The reservoir 10 has a reservoir chamber therein for containing oil (which may be referred to as damping oil). The side wall of the oil storage cylinder 10 is provided with a mounting port which is communicated with the oil storage cavity. The intermediate cylinder 20 is arranged in the oil storage cavity, a certain gap is formed between the intermediate cylinder 20 and the oil storage cylinder 10 in a spaced mode, and oil can circulate in the gap. The intermediate cylinder 20 has a first chamber for containing oil therein, a side wall of the intermediate cylinder 20 is provided with a side hole 22, the side hole 22 communicates with the first chamber, and the oil in the intermediate cylinder 20 can be guided out of the intermediate cylinder 20 through the side hole 22. The position of the side hole 22 on the intermediate cylinder 20 corresponds to the position of the mounting hole on the oil storage cylinder 10, the electromagnetic valve assembly 30 is mounted at the mounting hole of the oil storage cylinder 10, a part of the electromagnetic valve assembly 30 stretches into the mounting hole to be communicated with the side hole 22, oil in the intermediate cylinder 20 can be led into the electromagnetic valve assembly 30 through the side hole 22, the oil can flow back to the oil storage cylinder 10 through the electromagnetic valve assembly 30, and finally the oil flowing back to the oil storage cylinder 10 can enter the intermediate cylinder 20, so that the oil can circularly reciprocate among the intermediate cylinder 20, the electromagnetic valve assembly 30 and the oil storage cylinder 10, and the function of compressing and restoring damping force of the shock absorber 100 is realized.
It should be noted that, the damping adjustment principle of the shock absorber 100 according to the present application is to apply currents with different magnitudes to the solenoid valve assembly 30 to adjust the opening of the flow channel in the solenoid valve assembly 30, so as to ensure that the opening of the flow channel in the solenoid valve assembly 30 can be opened to a specified magnitude, thereby realizing a continuous adjustable function of the damping force of the shock absorber 100 (different damping force values).
Therefore, the shock absorber 100 of the present application sets the external solenoid valve assembly 30 on the reserve cylinder 10, and ensures that the solenoid valve assembly 30 is communicated with the side hole 22 on the intermediate cylinder 20, so that conduction of oil between the intermediate cylinder 20 and the solenoid valve assembly 30 can be achieved (the process of welding the solenoid valve 32 joint on the intermediate cylinder 20 is omitted). The connection between the intermediate cylinder 20 and the electromagnetic valve assembly 30 is realized without welding the electromagnetic valve 32 joint on the intermediate cylinder 20, so that parts are saved, the intermediate cylinder 20 can be prevented from being incapable of being assembled and sealing failure due to welding deformation of the intermediate cylinder 20, and the cost and the process manufacturing difficulty are effectively reduced.
According to one embodiment of the present invention, solenoid valve assembly 30 includes a solenoid valve seat 31, a solenoid valve 32, and a solenoid valve cover 33.
Specifically, a mounting cavity is defined in the electromagnetic valve seat 31, and the electromagnetic valve seat 31 is provided at the mounting port. The solenoid valve 32 is provided on the solenoid valve seat 31. The solenoid valve cover 33 is provided at one end of the solenoid valve 32 facing the intermediate cylinder 20, and the solenoid valve cover 33 is provided with a valve hole 34, the valve hole 34 communicating with the side hole 22.
That is, as shown in fig. 1 and 3, the solenoid valve assembly 30 is mainly composed of a solenoid valve seat 31, a solenoid valve 32, and a solenoid valve cover 33. Wherein, be equipped with the installation cavity in the electromagnetic valve seat 31, electromagnetic valve seat 31 sets up the installation mouth department at oil storage jar 10. The electromagnetic valve seat 31 can be welded with the oil storage cylinder 10, so that the installation stability of the electromagnetic valve 32 on the oil storage cylinder 10 is improved. The solenoid valve 32 is mounted on the solenoid valve seat 31. The solenoid valve cover 33 is provided at one end of the solenoid valve 32 toward the intermediate cylinder 20, and the solenoid valve cover 33 is provided with a valve hole 34, the valve hole 34 communicating with the side hole 22. The oil in the intermediate cylinder 20 may be introduced into the valve hole 34 through the side hole 22 to enter the solenoid valve 32. By applying currents of different magnitudes to the solenoid valve assembly 30, the opening degree of the flow channel inside the solenoid valve assembly 30 can be adjusted, and the opening degree of the flow channel inside the solenoid valve assembly 30 can be ensured to be opened to a specified magnitude, so that the function of continuously adjusting the damping force magnitudes (different damping force values) of the shock absorber 100 is realized.
In comparison with the prior art, in the prior art, the middle cylinder 20 is generally perforated, the electromagnetic valve joint is welded at the perforated position, the sealing ring is installed on the bridging component, the limiting plate is installed on the electromagnetic valve seat 31, and the bridging component is installed on the limiting plate to perform axial limiting fixation. Meanwhile, the bridging component is inserted into a hole of the joint of the electromagnetic valve 32 for radial limiting and fixing, and is sealed by a sealing ring, and the electromagnetic valve cover plate 33 is attached to the end face of the bridging component. The prior art has more parts and components, and additionally provided solenoid valve joints, bridging components and limiting plates, not only increases the manufacturing cost, but also increases the height of the solenoid valve component 30. In practical applications, the smaller the height of the solenoid valve assembly 30 should be, the better the solenoid valve assembly 30 should be, preventing interference between the solenoid valve assembly 30 and the chassis or body of the vehicle, and making the overall layout of the shock absorber 100 difficult.
That is, compared with the prior art, the electromagnetic valve assembly 30 of the application omits the structures such as the electromagnetic valve joint, the bridging assembly, the limiting plate and the like, reduces the height of the electromagnetic valve 32, effectively prevents the electromagnetic valve 32 from interfering with the chassis or the vehicle body of the vehicle, and facilitates the installation and arrangement of the whole vehicle suspension.
On the other hand, in the prior art, the intermediate cylinder 20 needs to be welded with a joint of the electromagnetic valve 32, the intermediate cylinder 20 of the shock absorber 100 is thinner, the wall thickness is generally about 1mm, the intermediate cylinder 20 is easy to deform during welding, and the welding deformation can cause the assembly and sealing failure of the intermediate cylinder 20 and the electromagnetic valve assembly 30, thereby increasing the cost and the manufacturing difficulty of the process.
Therefore, the electromagnetic valve assembly 30, the electromagnetic valve seat 31 is welded at the mounting opening of the oil storage cylinder 10, the electromagnetic valve 32 and the electromagnetic valve cover plate 33 are mounted on the electromagnetic valve seat 31, the valve hole 34 on the electromagnetic valve cover is communicated with the side hole 22 on the intermediate cylinder 20, the use of parts is reduced, and the problems that the intermediate cylinder 20 and the electromagnetic valve assembly 30 cannot be assembled and the sealing fails due to welding deformation of the intermediate cylinder 20 can be prevented.
In some embodiments of the present invention, the intermediate cylinder 20 is provided with a boss 21 at the periphery of the side hole 22, the solenoid valve cover 33 is provided with a mounting groove 35 at the periphery of the valve hole 34, a first sealing ring 36 is provided in the mounting groove 35, and the solenoid valve cover 33 is in fit connection with the boss 21 through the mounting groove 35 and the first sealing ring 36, so that the valve hole 34 is communicated with the side hole 22.
In other words, as shown in fig. 4 and 5, a boss 21 is provided at a peripheral position of the side hole 22 at a side surface of the intermediate cylinder 20, and the side hole 22 is provided on the boss 21. The solenoid valve cover 33 is provided with a mounting groove 35 at a peripheral position of the valve hole 34, and a first seal ring 36 may be mounted in the mounting groove 35. After the electromagnetic valve assembly 30 is installed in place, the electromagnetic valve cover plate 33 is tightly attached to the boss 21 on the intermediate cylinder 20, and the installation groove 35 of the electromagnetic valve cover plate 33 is sealed with the boss 21 on the intermediate cylinder 20 through the first sealing ring 36, so that oil (vibration-damping oil) can be further ensured not to leak when flowing into the electromagnetic valve assembly 30 from the side hole 22.
According to one embodiment of the present invention, the shock absorber 100 further includes an oil blocking positioning sleeve 40, wherein the oil blocking positioning sleeve 40 is sleeved on the outer wall of the intermediate cylinder 20, and the oil blocking positioning sleeve 40 is attached to the inner wall of the oil storage cylinder 10.
That is, as shown in fig. 1 and 4, the present application provides a certain lateral force to the intermediate cylinder 20 by closely fitting the solenoid valve cover 33 to the boss 21 of the intermediate cylinder 20 during the installation of the solenoid valve assembly 30 to the intermediate cylinder 20. This lateral force may result in intermediate tube 20 not being concentric with reserve tube 10. The misalignment of intermediate tube 20 and reserve tube 10 may result in difficulties in the assembly of the end surfaces of intermediate tube 20 with other structures of shock absorber 100 (e.g., guide sleeve 70 or base valve body 60). In order to solve the problem that the intermediate cylinder 20 and the reserve tube 10 cannot be kept concentric, the shock absorber 100 is further provided with an oil blocking positioning sleeve 40. The oil blocking positioning sleeve 40 may be sleeved on the outer wall of the intermediate cylinder 20, and the outer wall of the oil blocking positioning sleeve 40 is attached to the inner wall of the oil storage cylinder 10, so that the intermediate cylinder 20 is reliably positioned (as shown in fig. 1 and 7). After the electromagnetic valve cover plate 33 presses against the boss 21 of the intermediate cylinder 20, the intermediate cylinder 20 can be kept concentric with the oil storage cylinder 10, so that subsequent structural members and the intermediate cylinder 20 can be assembled conveniently.
In some embodiments of the present invention, the oil retaining sleeve 40 is provided with a notch 41 and a limiting hole 42, the notch 41 extends along the axial direction of the oil retaining sleeve 40, the limiting hole 42 is provided on the side wall of the oil retaining sleeve 40, the limiting hole 42 is communicated with the notch 41, and the limiting hole 42 corresponds to the position of the side hole 22.
In other words, referring to fig. 4 and 5, the oil deflector 40 is provided with a notch 41 and a limiting hole 42, the notch 41 extends in the axial direction of the oil deflector 40, and by providing the notch 41, the oil deflector 40 is formed in a non-closed annular shape in its radial cross section. The design of the notch 41 can enable the oil retaining positioning sleeve 40 to have a certain elastic deformation, is favorable for absorbing manufacturing tolerances of the middle cylinder 20 and the oil retaining positioning sleeve 40, ensures that the oil retaining positioning sleeve 40 can tightly hold the middle cylinder 20 all the time, and improves the attaching force of the oil retaining positioning sleeve 40 on the outer wall of the middle cylinder 20. The limiting hole 42 is arranged on the side wall of the oil blocking locating sleeve 40, and the limiting hole 42 is approximately positioned in the middle of the outer wall of the oil blocking locating sleeve 40. The radial two sides of the limiting hole 42 are respectively communicated with the notch 41 on the oil retaining positioning sleeve 40. In the present application, the limiting hole 42 corresponds to the position of the side hole 22 (boss 21), and the boss 21 is located in the limiting hole 42. Through set up spacing hole 42 on keeping off oil position sleeve 40, can let boss 21 on the intermediate cylinder 20 provide fixed spacing for keeping off oil position sleeve 40, avoid keeping off oil position sleeve 40 to float on the surface of intermediate cylinder 20 to be favorable to stably realizing keeping off the oil function, avoid abnormal sound to take place.
In some embodiments of the present invention, a plurality of first oil passing holes 43 are respectively disposed at the positions of the inner wall and the outer wall of the end face of the oil retaining sleeve 40, the plurality of first oil passing holes 43 are distributed at intervals along the circumferential direction of the oil retaining sleeve 40, and a plurality of hollow holes 44 are disposed at intervals on the side wall of the oil retaining sleeve 40.
That is, as shown in fig. 6 to 10, the oil deflector positioning sleeve 40 is further provided with a plurality of first oil passing holes 43, and the plurality of first oil passing holes 43 may be respectively distributed on both sides of the end surface of the oil deflector positioning sleeve 40 (one side toward the intermediate cylinder 20 and one side toward the reservoir cylinder 10). The plurality of first oil passing holes 43 at both sides of the end surface of the oil deflector positioning sleeve 40 may be spaced apart in the circumferential direction of the oil deflector positioning sleeve 40. The sidewall of the oil retaining collar 40 may be provided with a plurality of spaced apart hollowed-out holes 44. The design of the first oil passing hole 43 and the hollow hole 44 can form a netlike structure on the side wall of the oil blocking positioning sleeve 40, so that the oil blocking positioning sleeve 40 has the function of eliminating oil foam. When the vehicle is driven under severe road conditions and violently, the oil in the shock absorber 100 flows fast and vibrates violently, and a large amount of foam is easily generated. The presence of oil foam causes idle travel and deteriorates the function of the shock absorber 100. These reticulated hollows in the oil retaining sleeve 40 can block and eliminate foam in the damping oil, enhancing the performance of the damper 100. Meanwhile, through arranging the hollowed-out holes 44 on the oil blocking positioning sleeve 40, the weight of the oil blocking positioning sleeve 40 can be reduced, and the design requirement of light weight of a vehicle can be met.
According to an embodiment of the present invention, the outer wall of the oil retaining sleeve 40 is further provided with a plurality of ribs 45, and the ribs 45 extend along the axial direction and the circumferential direction of the oil retaining sleeve 40.
In other words, referring to fig. 8 and 9, the oil deflector positioning sleeve 40 may further be provided with a plurality of ribs 45, and the plurality of ribs 45 may extend along an outer wall of the oil deflector positioning sleeve, for example, the plurality of ribs 45 may extend along an axial direction and a circumferential direction of the oil deflector positioning sleeve 40, forming a transverse rib 45 and a vertical rib 45. Through set up rib 45 on keeping off oil position sleeve 40, can form the network structure with first oil hole 43 and fretwork hole 44 between, these structural designs can ensure that damping oil can normally circulate, satisfies the vibration damper 100 compression and resumes the demand of during operation fluid circulation. And meanwhile, the vibration reduction oil foam is eliminated. In addition, through setting up rib 45 on keeping off oil position sleeve 40, can also effectively strengthen the overall structure intensity that keeps off oil position sleeve 40, improve the life who keeps off oil position sleeve 40.
According to one embodiment of the present invention, the shock absorber 100 further comprises a working cylinder 50, the working cylinder 50 is arranged in the middle cylinder 20, a second chamber 51 is arranged in the working cylinder 50, a connecting rod 52 is arranged in the second chamber 51, the connecting rod 52 is movable in the working cylinder 50, a bottom valve body 60 and a guide sleeve 70 are further arranged in the oil storage cylinder 10, the bottom valve body 60 is provided with a first annular groove 61 and a second annular groove 62, the first annular groove 61 and the second annular groove 62 are distributed in a stepped manner in the radial direction of the bottom valve body 60, the guide sleeve 70 is provided with a second oil passing hole 73 communicated with the second chamber 51, the guide sleeve 70 is further provided with a third annular groove 71 and a fourth annular groove 72, the third annular groove 71 and the fourth annular groove 72 are distributed in a stepped manner in the radial direction of the guide sleeve 70, wherein the first annular groove 61 and the third annular groove 71 correspond to each other, two ends of the middle cylinder 20 are respectively connected with the first annular groove 61 and the third annular groove 71, the second annular groove 62 and the fourth annular groove 72 correspond to each other, and two ends of the working cylinder 50 are respectively connected with the second annular groove 62 and the fourth annular groove 72.
That is, as shown in fig. 1, the shock absorber 100 further includes a working cylinder 50, a second chamber 51 containing oil is provided in the working cylinder 50, the working cylinder 50 is disposed in the intermediate cylinder 20, the second chamber 51 containing oil is provided in the working cylinder 50, a connecting rod 52 is provided in the second chamber 51, the connecting rod 52 is movable in the working cylinder 50, and the oil can be driven to flow in the working cylinder 50 by the movement of the connecting rod 52, so that the oil in the shock absorber 100 is circularly conducted among the working cylinder 50, the intermediate cylinder 20, the electromagnetic valve 32 and the oil storage cylinder 10, and further the compression and restoring damping force functions of the shock absorber 100 are realized.
Referring to fig. 1, a bottom valve body 60 and a guide sleeve 70 are further provided in the reserve tube 10, wherein the bottom valve body 60 is positioned at a lower end of the shock absorber 100, and the guide sleeve 70 is positioned at an upper end of the shock absorber 100. The bottom valve body 60 is provided with a first annular groove 61 and a second annular groove 62, the first annular groove 61 and the second annular groove 62 are distributed stepwise in the radial direction of the bottom valve body 60, and the first annular groove 61 and the second annular groove 62 form a large stepped shaft and a small stepped shaft on the bottom valve body 60.
As shown in fig. 1 and 2, the guide bush 70 is provided with a second oil passing hole 73, the second oil passing hole 73 communicates with the second chamber 51, and the damping oil in the working cylinder 50 can flow into the intermediate cylinder 20 through the second oil passing hole 73 on the guide bush 70. The guide bush 70 is further provided with a third annular groove 71 and a fourth annular groove 72, the third annular groove 71 and the fourth annular groove 72 being arranged stepwise in the radial direction of the guide bush 70, the third annular groove 71 and the fourth annular groove 72 forming a large stepped shaft and a small stepped shaft on the guide bush 70 (see fig. 2). The first annular groove 61 of the bottom valve body 60 corresponds to the third annular groove 71 of the guide sleeve 70, and two ends of the intermediate cylinder 20 are respectively connected with the first annular groove 61 and the third annular groove 71, so as to realize the installation of the intermediate cylinder 20 in the shock absorber 100. The second ring groove 62 of the bottom valve body 60 corresponds to the fourth ring groove 72 of the guide sleeve 70, and both ends of the working cylinder 50 are respectively connected with the second ring groove 62 and the fourth ring groove 72, so that the working cylinder 50 is mounted in the shock absorber 100.
In the process of installing the electromagnetic valve assembly 30 and the intermediate cylinder 20, the electromagnetic valve cover plate 33 is tightly attached to the boss 21 of the intermediate cylinder 20, and a certain lateral force is provided for the intermediate cylinder 20. This lateral force may result in intermediate tube 20 not being concentric with reserve tube 10. The misalignment of intermediate tube 20 and reserve tube 10 may result in difficulty in assembling intermediate tube 20 with guide sleeve 70. In order to solve the problem that the guide sleeve 70 in the shock absorber 100 is difficult to assemble, the shock absorber 100 is provided with the oil blocking positioning sleeve 40. The oil retaining positioning sleeve 40 can be sleeved on the outer wall of the intermediate cylinder 20, and the outer wall of the oil retaining positioning sleeve 40 is attached to the inner wall of the oil storage cylinder 10, so that the intermediate cylinder 20 is reliably positioned. After the electromagnetic valve cover plate 33 presses against the boss 21 of the intermediate cylinder 20, the intermediate cylinder 20 can be kept concentric with the oil storage cylinder 10, so that the subsequent assembly of the guide sleeve 70 and the intermediate cylinder 20 is facilitated.
In the application, the circulating flow process of the damping oil in the shock absorber 100 is that the damping oil in the working cylinder 50 flows into the intermediate cylinder 20 through the second oil passing hole 73 of the guide sleeve 70, flows into the electromagnetic valve assembly 30 through the side hole 22 on the intermediate cylinder 20, the oil (damping oil) flows back to the oil storage cylinder 10 through the electromagnetic valve assembly 30, and the oil in the oil storage cylinder 10 flows into the working cylinder 50 through the bottom valve body 60, so the circulating is repeated, and the functions of compressing and restoring damping force of the shock absorber 100 are realized. Meanwhile, the application can adjust the opening of the flow passage in the electromagnetic valve assembly 30 by applying currents with different magnitudes to the electromagnetic valve assembly 30, and ensure that the opening of the flow passage in the electromagnetic valve assembly 30 can be opened to a specified magnitude, thereby realizing the continuous adjustable function of the damping force of the shock absorber 100 (different damping force values).
Of course, in other embodiments of the present application, the shock absorber 100 further includes a working cylinder 50, wherein a third oil passing hole is formed in a sidewall of the working cylinder 50, grooves are respectively formed at two ends of the intermediate cylinder 20, a second sealing ring is respectively formed in each groove, the working cylinder 50 is disposed in the intermediate cylinder 20, and two ends of the working cylinder 50 are respectively connected with the grooves through the second sealing rings.
In other words, the present application may provide a third oil passing hole in the sidewall of the working cylinder 50, and the upper and lower ends of the intermediate cylinder 20 may be fixed to the outer surface of the working cylinder 50, respectively. Wherein, the both ends of intermediate cylinder 20 can be provided with the recess respectively, install the second sealing washer in each recess respectively, and working cylinder 50 installs in intermediate cylinder 20. The two ends of the working cylinder 50 are respectively connected with the grooves through second sealing rings, and radial sealing of the working cylinder 50 is realized by means of the second sealing rings. Meanwhile, the third oil passing hole is formed in the working cylinder 50, so that damping oil can flow into the intermediate cylinder 20 from the second oil passing hole 73 of the working cylinder 50, and damping adjustability of the shock absorber 100 is achieved.
Of course, for other structures of the shock absorber 100, for example, referring to fig. 1, two ends of the oil storage cylinder 10 are sleeved with the blocking covers 81 for blocking dust, the outer wall surface of the oil storage cylinder 10 is further provided with the mounting member 82 connected with the vehicle body, and the specific working principle of the shock absorber 100, etc., which are understood and can be implemented by those skilled in the art, and detailed description thereof is omitted herein.
In summary, according to the shock absorber 100 of the embodiment of the present application, by disposing the solenoid valve assembly 30 at the mounting port of the oil storage cylinder 10, a portion of the solenoid valve assembly 30 extends into the mounting port to communicate with the side hole 22 on the intermediate cylinder 20, so that the oil can circulate between the intermediate cylinder 20 and the solenoid valve assembly 30, there is no need to weld the solenoid valve 32 joint on the intermediate cylinder 20, and the intermediate cylinder 20 and the solenoid valve assembly 30 cannot be assembled and sealed to fail due to welding deformation of the intermediate cylinder 20, thereby effectively reducing cost and difficulty in manufacturing process. The shock absorber 100 reduces the number of parts of the electromagnetic valve assembly 30, reduces the height of the electromagnetic valve 32, and is convenient for the whole vehicle structural arrangement of the shock absorber 100. In addition, through setting up oil retaining position sleeve 40 at the intermediate cylinder 20 outer wall, can carry out reliable location intermediate cylinder 20, can also eliminate the foam that damping oil produced through oil retaining position sleeve 40 simultaneously, realize keeping off the oil function, avoid abnormal sound to take place.
According to a second aspect of the present application, there is also provided a vehicle including the shock absorber 100 in the above-described embodiment. Since the shock absorber 100 according to the embodiment of the present application has the above technical effects, the vehicle according to the embodiment of the present application should have the corresponding technical effects, that is, by adopting the shock absorber 100, the electromagnetic valve 32 joint is not required to be welded on the intermediate cylinder 20, so that the intermediate cylinder 20 and the electromagnetic valve assembly 30 can not be assembled and sealed to fail due to welding deformation of the intermediate cylinder 20 is prevented, and the cost and the manufacturing difficulty are effectively reduced. The shock absorber 100 of the present application reduces the number of parts of the solenoid valve assembly 30, reduces the height of the solenoid valve 32, and facilitates the structural arrangement of the vehicle. In addition, through setting up oil retaining position sleeve 40 at the intermediate cylinder 20 outer wall, can carry out reliable location intermediate cylinder 20, can also eliminate the foam that damping oil produced through oil retaining position sleeve 40 simultaneously, realize keeping off the oil function, avoid abnormal sound to take place.
Of course, other structures of the vehicle and its working principle are understood and can be implemented by those skilled in the art, and detailed description thereof is omitted herein.
While certain specific embodiments of the application have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the application. The scope of the application is defined by the appended claims.
Claims (7)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111274698.2A CN116066505B (en) | 2021-10-29 | 2021-10-29 | Shock absorber and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111274698.2A CN116066505B (en) | 2021-10-29 | 2021-10-29 | Shock absorber and vehicle |
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| CN116066505A CN116066505A (en) | 2023-05-05 |
| CN116066505B true CN116066505B (en) | 2025-03-11 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5163538A (en) * | 1991-09-03 | 1992-11-17 | General Motors Company | Low level damping valve and method for a semi-active hydraulic damper |
| CN1902073A (en) * | 2003-09-17 | 2007-01-24 | 坦尼科汽车操作有限公司 | Adjustable damper with control valve, mounted in an external collar |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012105556A1 (en) * | 2011-01-31 | 2012-08-09 | 日立オートモティブシステムズ株式会社 | Suspension controller |
| CN203685961U (en) * | 2013-12-11 | 2014-07-02 | 隆昌山川精密焊管有限责任公司 | Radial positioning ring of working cylinder of shock absorber |
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2021
- 2021-10-29 CN CN202111274698.2A patent/CN116066505B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5163538A (en) * | 1991-09-03 | 1992-11-17 | General Motors Company | Low level damping valve and method for a semi-active hydraulic damper |
| CN1902073A (en) * | 2003-09-17 | 2007-01-24 | 坦尼科汽车操作有限公司 | Adjustable damper with control valve, mounted in an external collar |
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| CN116066505A (en) | 2023-05-05 |
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