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CN113404801B - Damper based on telescopic oil bag - Google Patents

Damper based on telescopic oil bag Download PDF

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Publication number
CN113404801B
CN113404801B CN202110653140.9A CN202110653140A CN113404801B CN 113404801 B CN113404801 B CN 113404801B CN 202110653140 A CN202110653140 A CN 202110653140A CN 113404801 B CN113404801 B CN 113404801B
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CN
China
Prior art keywords
oil
oil bag
telescopic
cavity
compression
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.)
Active
Application number
CN202110653140.9A
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Chinese (zh)
Other versions
CN113404801A (en
Inventor
王佳鹏
牛高峰
张康熙
杨武成
张军前
刘畅
张玉更
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xi'an Hongqing Machinery Factory
Original Assignee
Xi'an Hongqing Machinery Factory
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Filing date
Publication date
Application filed by Xi'an Hongqing Machinery Factory filed Critical Xi'an Hongqing Machinery Factory
Priority to CN202110653140.9A priority Critical patent/CN113404801B/en
Publication of CN113404801A publication Critical patent/CN113404801A/en
Application granted granted Critical
Publication of CN113404801B publication Critical patent/CN113404801B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F16F9/145—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only rotary movement of the effective parts
    • 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
    • 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
    • F16F9/3292—Sensor arrangements
    • 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
    • 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
    • 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
    • F16F2230/00—Purpose; Design features
    • F16F2230/10—Enclosure elements, e.g. for protection
    • F16F2230/105—Flexible, e.g. bellows or bladder
    • 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
    • F16F2230/00—Purpose; Design features
    • F16F2230/18—Control arrangements
    • 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
    • F16F2232/00—Nature of movement
    • F16F2232/02—Rotary

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

The application discloses a damper based on a telescopic oil bag, which comprises a linkage shaft sleeve and one end of a linkage rotating shaft, wherein a pressure maintaining shell, an oil bag supporting seat and a rotating supporting seat are arranged on the linkage rotating shaft; the space surrounded by the pressure maintaining shell and the oil bag supporting disc of the oil bag supporting seat is an oil bag installation cavity, a telescopic oil bag is installed in the oil bag installation cavity, a closed space in an elastic telescopic shell of the telescopic oil bag is an oil cavity, a compression rotating plate is arranged in the oil cavity, and the compression rotating plate divides the oil cavity into an oil filling oil cavity and an oil receiving oil cavity; an oil liquid control valve is arranged on the compression rotating plate; the elastic telescopic shell is also fixed on a fixed baffle plate of the oil bag supporting seat; the oil filling oil cavity and the oil receiving oil cavity can stretch and retract under the action of the fixed baffle and the compression rotating plate. The damper based on the telescopic oil bag has good sealing performance and pressure maintaining performance, has small friction force among all parts of the damper, and can ensure the stable operation of a vehicle.

Description

Damper based on telescopic oil bag
Technical Field
The application belongs to the field of automobile part manufacturing, relates to a damper, and in particular relates to a damper based on a telescopic oil bag.
Background
The damper is critical to the smooth running of the special heavy-load vehicle, and the jolt of the special heavy-load vehicle in the running process leads parts and components in the vehicle to be easy to loosen, so that the failure rate of the vehicle is seriously increased, the difficulty of operating equipment is increased, and the service life of the special heavy-load vehicle and the analysis and the research of the working condition are seriously influenced. In the running process of the hydraulic damper in the prior art, the structure of the damper is deformed due to poor sealing performance, poor pressure maintaining performance, low damping order and improper stress of a friction pair, so that the service life of the damper is reduced and the working quality of the damper is deteriorated.
Disclosure of Invention
Aiming at the defects in the prior art, the application aims to provide a damper based on a telescopic oil bag, which solves the technical problem of unstable running of a vehicle caused by poor sealing effect of the damper in the prior art.
The application is realized by adopting the following technical scheme:
a damper based on a telescopic oil bag comprises a linkage shaft sleeve, wherein one end of a linkage rotating shaft is rotatably arranged in the linkage shaft sleeve, a pressure maintaining shell, an oil bag supporting seat and a rotating supporting seat are sequentially and coaxially fixedly arranged on the linkage rotating shaft along the axial direction, and the other end of the linkage rotating shaft is rotatably arranged in the rotating supporting seat;
the oil bag supporting seat comprises a disc-shaped oil bag supporting disc, the top surface of the oil bag supporting disc is fixedly arranged at the bottom of the pressure maintaining shell, the bottom surface of the oil bag supporting disc is fixedly arranged on the top surface of the rotary supporting seat, and the center of the oil bag supporting disc is provided with a center hole for punching a linkage rotary shaft;
the pressure maintaining shell and the oil bag supporting disc enclose a space which is an oil bag installation cavity, more than one telescopic oil bag is installed in the oil bag installation cavity, each telescopic oil bag comprises an elastic telescopic shell, a closed space in the elastic telescopic shell is an oil cavity, a compression rotating plate is vertically arranged in the oil cavity and is distributed along the radial direction, and the compression rotating plate divides the oil cavity into an oil filling oil cavity and an oil receiving oil cavity which are independent of each other; the compression rotating plate is provided with more than one oil control valve, and the oil control valve is used for communicating an oil filling cavity and an oil receiving cavity;
the oil bag supporting disc in the oil bag installation cavity is vertically and fixedly provided with more than one fixed baffle plate, and the fixed baffle plates are distributed along the radial direction; the circumferential side wall of the elastic telescopic shell is fixed on a fixed baffle of the oil bag supporting seat, and the compression rotating plate is fixedly arranged on the linkage rotating shaft; the compression rotor plate can rotate under the drive of linkage rotation axis, the flexible shell can carry out flexible motion along circumference along with the rotary motion of compression rotor plate, oiling oil pocket and oily chamber that receive can stretch out and draw back under the effect of fixed baffle and compression rotor plate.
The application also has the following technical characteristics:
the number of the fixed baffles is equal to the number of the compression rotating plates, and the number of the compression rotating plates is equal to the number of the telescopic oil bags; the fixed baffles are uniformly and symmetrically fixed on the oil bag supporting disc, the compression rotating plate is uniformly and fixedly arranged on the linkage rotating shaft, and the fixed baffles and the compression rotating plate are alternately and adjacently arranged; the number of the fixed baffle plates and the number of the compression rotating plates are more than two.
The elastic telescopic shell is provided with an accordion-shaped fold structure.
The oil liquid control valve is a pair and comprises a coarse control valve and a fine control valve, and the coarse control valve and the fine control valve are two-way electromagnetic valves.
The oil liquid control valve is provided with a sensor, the sensor is connected with the input end of the controller, and the output end of the controller is connected with the oil liquid control valve.
The edge of the oil bag supporting disc is provided with a plurality of through holes, and the oil bag supporting disc is fixedly connected with the pressure maintaining shell and the rotary supporting seat through the through holes and bolts.
The fixed baffle plate is provided with a plurality of lightening holes.
The other end of the linkage rotating shaft is rotatably arranged in the rotating supporting seat through a deep groove ball bearing; and a limit ring is arranged between the linkage rotating shaft and the oil bag supporting disc.
A lip-shaped sealing ring is arranged between the linkage rotating shaft and the rotating supporting seat; an O-shaped sealing ring is arranged between the linkage rotating shaft and the oil bag supporting disc.
The other ends of the rotary supporting seat and the linkage rotary shaft are provided with a sealing gasket and a sealing ring; the sealing gasket is fixedly arranged on the bottom surface of the rotary supporting seat through a bolt, and the sealing ring is fixedly arranged on the bottom surface of the rotary supporting seat through a mounting piece.
Compared with the prior art, the application has the following technical effects:
the damper based on the telescopic oil bag has good sealing performance and pressure maintaining performance, and the friction force among all parts of the damper is small, so that the stable operation of a vehicle can be ensured.
The telescopic oil bag has the accordion-shaped fold structure, and the structure ensures the stable and reliable performance of the telescopic oil bag and meets the application requirements of simple processing technology and convenient maintenance.
And (III) the application adopts the control instrument to control the opening and closing of the oil control valve and the opening size, thereby realizing the accurate regulation and control of the flow and the pressure of the oil.
Drawings
Fig. 1 is a schematic structural view of a telescopic oil bag.
Fig. 2 is a schematic cross-sectional view of a telescoping oil bag.
Fig. 3 is a schematic front view of a damper.
Fig. 4 is a schematic view of the overall structure of the damper.
Fig. 5 is a schematic top view of the oil bag support base.
Fig. 6 is a schematic diagram of the front view structure of the oil bag supporting seat.
Fig. 7 is a schematic bottom view of the rotary support base.
Fig. 8 is a schematic elevational view of the rotary support base.
Fig. 9 is a schematic top view of the compressed rotary plate.
The meaning of each reference numeral in the figures is: the device comprises a 1-linkage shaft sleeve, a 2-linkage rotating shaft, a 3-pressure maintaining shell, a 4-oil bag supporting seat, a 5-rotation supporting seat, a 6-oil bag installation cavity, a 7-telescopic oil bag, an 8-deep groove ball bearing, a 9-limit ring, a 10-lip seal ring, an 11-O-shaped seal ring, a 12-seal gasket, a 13-seal ring, a 14-bolt, a 15-installation piece, a 16-long bolt and a 17-fastening bolt;
701-an elastic telescopic shell, 702-an oil cavity, 703-a compression rotating plate, 704-an oil control valve;
401-oil bag supporting disc, 402-fixed baffle plates and 403-lightening holes;
70201-an oil filling cavity, 70202-an oil receiving cavity;
70401-coarse control valve, 70402-fine control valve.
The following examples illustrate the application in further detail.
Detailed Description
All parts in the present application are known in the art, unless otherwise specified.
The control instruments and sensors employed in the present application are those known in the art.
The following specific embodiments of the present application are provided, and it should be noted that the present application is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical scheme of the present application fall within the protection scope of the present application.
Examples:
the embodiment provides a damper based on a telescopic oil bag, which comprises a linkage shaft sleeve 1, wherein one end of a linkage rotating shaft 2 is rotatably arranged in the linkage shaft sleeve 1, a pressure maintaining shell 3, an oil bag supporting seat 4 and a rotary supporting seat 5 are sequentially and coaxially arranged on the linkage rotating shaft 2 along the axial direction, and the other end of the linkage rotating shaft 2 is rotatably arranged in the rotary supporting seat 5;
the oil bag supporting seat 4 comprises a disc-shaped oil bag supporting plate 401, the top surface of the oil bag supporting plate 401 is fixedly arranged at the bottom of the pressure maintaining shell 3, the bottom surface of the oil bag supporting plate 401 is fixedly arranged on the top surface of the rotary supporting seat 5, and the center of the oil bag supporting plate 401 is provided with a center hole for punching the linkage rotary shaft 2;
the space surrounded by the pressure maintaining shell 3 and the oil bag supporting plate 401 is an oil bag installation cavity 6, more than one telescopic oil bag 7 is installed in the oil bag installation cavity 6, each telescopic oil bag 7 comprises an elastic telescopic shell 701, the closed space in the elastic telescopic shell 701 is an oil cavity 702, a compression rotating plate 703 is vertically arranged in the oil cavity 702, the compression rotating plate 703 is arranged along the radial direction, and the compression rotating plate 703 divides the oil cavity 702 into an oil filling oil cavity 70201 and an oil receiving oil cavity 70202 which are mutually independent; the compression rotating plate 703 is provided with more than one oil control valve 704, and the oil control valve 704 is used for communicating the oil filling cavity 70201 and the oil receiving cavity 70202;
more than one fixed baffle plate 402 is vertically and fixedly arranged on the oil bag supporting plate 401 in the oil bag installation cavity 6, and the fixed baffle plates 402 are distributed along the radial direction; the circumferential side wall of the elastic telescopic shell 701 is fixed on a fixed baffle plate 402 of the oil bag supporting seat 4, and the compression rotating plate 703 is fixedly arranged on the linkage rotating shaft 2; the compression rotor plate 703 can rotate under the drive of linkage rotation axis 2, and the elastic telescopic housing 701 can carry out telescopic motion along circumference along with the rotary motion of compression rotor plate 703, and oiling oil pocket 70201 and oil receiving oil pocket 70202 can stretch out and draw back under the effect of fixed baffle 402 and compression rotor plate 703.
As a specific solution of the present embodiment, the number of the fixed baffles 402 is equal to the number of the compression rotation plates 703, and the number of the compression rotation plates 703 is equal to the telescopic oil bag 7; the fixed baffles 402 are uniformly and symmetrically fixed on the oil bag supporting disc 401, the compression rotating plate 703 is uniformly and fixedly arranged on the linkage rotating shaft 2, and the fixed baffles 402 and the compression rotating plate 703 are alternately and adjacently arranged; the number of the fixed baffle 402 and the compression rotation plate 703 is two or more.
In the present embodiment, the number of the fixed baffle 402, the compression rotation plate 703 and the telescopic oil bag 7 is two; the number of oil filling chambers 70201 and the number of oil receiving chambers 70202 are two.
As a specific aspect of the present embodiment, the elastic telescoping housing 701 has a bellows-like pleated structure.
In this embodiment, compared with the split bubble wrapping structure and the whole pleated structure, the accordion-shaped pleated structure has more stable and reliable performance and simpler processing technology.
As a specific scheme of this embodiment, the oil control valve 704 is a pair, including a coarse control valve 70401 and a fine control valve 70402, where the coarse control valve 70401 and the fine control valve 70402 are two-way electromagnetic valves.
In this embodiment, the coarse control valve 70401 and the fine control valve 70402 achieve precise control over the flow of oil.
As a specific scheme of this embodiment, a sensor is installed on the oil control valve 704, the sensor is connected to an input end of a controller, and an output end of the controller is connected to the oil control valve 704.
In this embodiment, the controller can control the opening sizes of the coarse control valve 70401 and the fine control valve 70402 by controlling the coarse control valve 70401 and the fine control valve 70402 to be opened and closed.
As a specific scheme of the embodiment, a plurality of through holes are formed in the edge portion of the oil bag supporting plate 401, and the oil bag supporting plate 401 is fixedly connected with the pressure maintaining shell 3 and the rotary supporting seat 5 through the through holes and bolts.
In this embodiment, the oil bag supporting plate 401 and the pressure maintaining housing 3 bear the pressure generated when the telescopic oil bag 7 works, and play roles in limiting and supporting the telescopic oil bag 7 axially and radially, so as to protect the telescopic oil bag 7 from being disturbed in work.
In this embodiment, the bolts for fixing the oil bag support plate 401, the pressure maintaining shell 3 and the rotary support seat 5 are long bolts 15, the bottom ends of the long bolts 15 are fixedly installed on the bottom surface of the rotary support seat 5, and the long bolts 15 penetrate through the pressure maintaining shell 3, the oil bag support plate 401 and the rotary support seat 5 and the top ends of the long bolts 15 are fixedly installed at the bottom end of the linkage shaft sleeve 1; the long bolt 15 is fixedly provided with a fastening screw 16, and the fastening screw 16 is fixedly arranged on the side wall of the oil bag supporting plate 401.
In this embodiment, the long bolt 15 enables the pressure maintaining housing 3, the oil bag supporting plate 401 and the rotary supporting seat 5 to be stably and fixedly connected, and the screw tightening screw 16 prevents the long bolt 15 from loosening.
As a preferred embodiment of the present embodiment, the fixed baffle 402 is provided with a plurality of lightening holes 403 to lighten the weight of the oil bag supporting seat 4.
As a specific scheme of the embodiment, the other end of the linkage rotating shaft 2 is rotatably arranged in the rotating supporting seat 5 through a deep groove ball bearing 8; a limit ring 9 is arranged between the linkage rotating shaft 2 and the oil bag supporting disc 401.
In the embodiment, the deep groove ball bearing 8 has double functions, namely, the rotary motion of the linkage rotary shaft 2 is supported, and the radial limiting function is achieved on the linkage rotary shaft 2; the limit ring 9 plays a further radial limit role on the linkage rotation shaft 2.
As a specific scheme of the embodiment, a lip-shaped sealing ring 10 is arranged between the linkage rotating shaft 2 and the rotating supporting seat 5; an O-shaped sealing ring 11 is arranged between the linkage rotating shaft 2 and the oil bag supporting disc 401; the lip seal 10 and the O-ring 11 function to seal the fluid and prevent dust contamination.
As a specific scheme of the embodiment, a sealing gasket 12 and a sealing ring 13 are arranged on the other ends of the rotary supporting seat 5 and the linkage rotary shaft 2; the sealing gasket 12 is fixedly mounted on the bottom surface of the rotary support seat 5 by bolts 14, and the sealing ring 13 is fixedly mounted on the bottom surface of the rotary support seat 5 by mounting members 15.
In the embodiment, the sealing gasket 12 and the sealing cover 9 play roles in protecting and preventing pollution to parts of the oil bag installation cavity 6; the bolt 14 and the threaded connection enable the sealing gasket 12 and the sealing cover 9 to be more stably fixed on the bottom surface of the rotary supporting seat 5, and good sealing effect is achieved.
The working process of the application is as follows:
the linkage rotating shaft 2 of the damper is connected with the vehicle tire spindle, vibration generated by bumping of a road surface is transmitted to the linkage rotating shaft 2 through the vehicle tire spindle in the running process of the vehicle, so that the linkage rotating shaft 2 rotates clockwise or anticlockwise, the linkage rotating shaft 2 drives the compression rotating plate 703 to rotate in the same direction, the elastic telescopic shell 701 stretches and contracts along the circumferential direction along with the rotation of the compression rotating plate 703, at the moment, under the control of a controller, the oil liquid control valve 704 is opened, oil liquid enters the oil receiving oil cavity 70202 from the oil filling oil cavity 70201, the volume of the oil filling oil cavity 70201 and the volume of the oil receiving oil cavity 70202 are changed by the flowing of the oil liquid, oil pressure is generated, and the damper completes one-time damping motion under the action of the oil pressure; after the damping motion is completed once, the original oil filling cavity 70201 is in a hollow state, and the oil receiving cavity 70202 is filled with oil, that is, the oil filling cavity 70201 and the oil receiving cavity 70202 are mutually converted, and the damping motion is completed for a plurality of times in a circulating way.

Claims (10)

1. The damper based on the telescopic oil bag comprises a linkage shaft sleeve (1), wherein one end of a linkage rotating shaft (2) is rotatably arranged in the linkage shaft sleeve (1), and the damper is characterized in that a pressure maintaining shell (3), an oil bag supporting seat (4) and a rotating supporting seat (5) are sequentially and coaxially fixedly arranged on the linkage rotating shaft (2) along the axial direction, and the other end of the linkage rotating shaft (2) is rotatably arranged in the rotating supporting seat (5);
the oil bag supporting seat (4) comprises a disc-shaped oil bag supporting disc (401), the top surface of the oil bag supporting disc (401) is fixedly arranged at the bottom of the pressure maintaining shell (3), the bottom surface of the oil bag supporting disc (401) is fixedly arranged on the top surface of the rotary supporting seat (5), and the center of the oil bag supporting disc (401) is provided with a center hole for linking the perforation of the rotary shaft (2);
the pressure maintaining shell (3) and the oil bag supporting disc (401) enclose to form a space which is an oil bag installation cavity (6), more than one telescopic oil bag (7) is installed in the oil bag installation cavity (6), each telescopic oil bag (7) comprises an elastic telescopic shell (701), a closed space in the elastic telescopic shell (701) is an oil cavity (702), a compression rotating plate (703) is vertically arranged in the oil cavity (702), the compression rotating plate (703) is distributed along the radial direction, and the compression rotating plate (703) divides the oil cavity (702) into an oil injection oil cavity (70201) and an oil receiving oil cavity (70202) which are mutually independent; the compression rotating plate (703) is provided with more than one oil control valve (704), and the oil control valve (704) is used for communicating an oil filling cavity (70201) and an oil receiving cavity (70202);
more than one fixed baffle plate (402) is vertically and fixedly arranged on an oil bag supporting disc (401) in the oil bag installation cavity (6), and the fixed baffle plates (402) are distributed along the radial direction; the circumferential side wall of the elastic telescopic shell (701) is fixed on a fixed baffle plate (402) of the oil bag supporting seat (4), and the compression rotating plate (703) is fixedly arranged on the linkage rotating shaft (2); the compression rotor plate (703) can rotate under the drive of linkage rotation axis (2), and flexible shell (701) can carry out flexible motion along circumference along with the rotary motion of compression rotor plate (703), oiling oil pocket (70201) and oily oil pocket (70202) can stretch out and draw back under fixed baffle (402) and compression rotor plate (703).
2. The telescopic oil bladder based damper according to claim 1, wherein the number of fixed baffles (402) is equal to the number of compression swivel plates (703), the number of compression swivel plates (703) being equal to the telescopic oil bladder (7); the fixed baffles (402) are uniformly and symmetrically fixed on the oil bag supporting disc (401), the compression rotating plate (703) is uniformly and fixedly arranged on the linkage rotating shaft (2), and the fixed baffles (402) and the compression rotating plate (703) are alternately and adjacently arranged; the number of the fixed baffle plates (402) and the number of the compression rotating plates (703) are more than two.
3. A telescopic oil bladder based damper according to claim 1, wherein said resilient telescopic housing (701) has an accordion-like bellows-like pleated structure.
4. The telescopic oil bag based damper of claim 1, wherein the pair of oil control valves (704) comprises a coarse control valve (70401) and a fine control valve (70402), and the coarse control valve (70401) and the fine control valve (70402) are both bidirectional electromagnetic valves.
5. The telescopic oil bag-based damper according to claim 4, wherein the oil control valve (704) is provided with a sensor, the sensor is connected with an input end of a controller, and an output end of the controller is connected with the oil control valve (704).
6. The telescopic oil bag-based damper according to claim 1, wherein a plurality of through holes are formed in the edge portion of the oil bag supporting disc (401), and the oil bag supporting disc (401) is fixedly connected with the pressure maintaining shell (3) and the rotary supporting seat (5) through the through holes and bolts.
7. The telescopic oil bag-based damper according to claim 1, wherein the fixed baffle (402) is provided with a plurality of lightening holes (403).
8. The telescopic oil bag-based damper according to claim 1, wherein the other end of the linkage rotating shaft (2) is rotatably arranged in the rotating support seat (5) through a deep groove ball bearing (8); a limit ring (9) is arranged between the linkage rotating shaft (2) and the oil bag supporting disc (401).
9. The telescopic oil bag-based damper according to claim 1, wherein a lip seal (10) is arranged between the linked rotating shaft (2) and the rotating support seat (5); an O-shaped sealing ring (11) is arranged between the linkage rotating shaft (2) and the oil bag supporting disc (401).
10. A telescopic oil bag based damper according to claim 1, wherein the other end of the rotary support seat (5) and the linked rotary shaft (2) is provided with a sealing gasket (12) and a sealing ring (13); the sealing gasket (12) is fixedly arranged on the bottom surface of the rotary supporting seat (5) through a bolt (14), and the sealing ring (13) is fixedly arranged on the bottom surface of the rotary supporting seat (5) through a mounting piece (15).
CN202110653140.9A 2021-06-11 2021-06-11 Damper based on telescopic oil bag Active CN113404801B (en)

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Application Number Priority Date Filing Date Title
CN202110653140.9A CN113404801B (en) 2021-06-11 2021-06-11 Damper based on telescopic oil bag

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Application Number Priority Date Filing Date Title
CN202110653140.9A CN113404801B (en) 2021-06-11 2021-06-11 Damper based on telescopic oil bag

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CN113404801A CN113404801A (en) 2021-09-17
CN113404801B true CN113404801B (en) 2023-08-25

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CN208107050U (en) * 2018-03-09 2018-11-16 柳州欧维姆机械股份有限公司 A kind of flexible closed type fluid linking damper
CN208634264U (en) * 2018-07-02 2019-03-22 常州中车柴油机零部件有限公司 Hydraulic shock absorber for EMU

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