CN113958659A - Sealing structure and sealing method of liquid rubber composite node - Google Patents
Sealing structure and sealing method of liquid rubber composite node Download PDFInfo
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- CN113958659A CN113958659A CN202111296781.XA CN202111296781A CN113958659A CN 113958659 A CN113958659 A CN 113958659A CN 202111296781 A CN202111296781 A CN 202111296781A CN 113958659 A CN113958659 A CN 113958659A
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- outer sleeve
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- 238000007789 sealing Methods 0.000 title claims abstract description 82
- 239000007788 liquid Substances 0.000 title claims abstract description 56
- 239000002131 composite material Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000004073 vulcanization Methods 0.000 claims description 17
- 150000001875 compounds Chemical class 0.000 claims description 9
- 238000013016 damping Methods 0.000 description 4
- 238000005192 partition Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/16—Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid or pasty material
- F16F15/167—Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid or pasty material having an inertia member, e.g. ring
- F16F15/173—Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid or pasty material having an inertia member, e.g. ring provided within a closed housing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/22—Guiding of the vehicle underframes with respect to the bogies
- B61F5/24—Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/38—Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles
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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
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
- F16F15/124—Elastomeric springs
- F16F15/126—Elastomeric springs consisting of at least one annular element surrounding the axis of rotation
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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
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/12—Fluid damping
-
- 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
- F16F2230/30—Sealing arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
A liquid rubber composite node sealing structure and a sealing method thereof, wherein the liquid rubber composite node comprises a mandrel, a rubber body, a vulcanized body outer sleeve, a stop block and an integral outer sleeve; the rubber body is vulcanized between the vulcanizing body outer sleeve and the core shaft to form a whole, the core shaft, the rubber body and the vulcanizing body outer sleeve are enclosed to form a hydraulic cavity with an opening at the outer side, a stop block is arranged in the hydraulic cavity, and the whole outer sleeve is sleeved outside the stop block and the vulcanizing body outer sleeve; the outer sleeve is provided with a stop step opening, the outer sleeve is provided with an outer sleeve step opening matched with the stop step opening, the stop block is covered on the outer sleeve, and a sealing structure is arranged between the stop step opening and the outer sleeve step opening. The multiple sealing structure ensures that liquid in the hydraulic cavity cannot leak to the periphery along the gap between the structures of each layer, thereby ensuring the stable operation of the vehicle.
Description
Technical Field
The invention relates to the field of rail transit, in particular to a sealing structure and a sealing method of a liquid rubber composite node.
Background
According to the dynamic requirement, when the rotating arm node is in linear high-speed operation (high-frequency vibration), larger radial rigidity is provided to ensure the operation stability, and the critical speed is improved; when passing a curve (low frequency and large amplitude), smaller rigidity performance is provided to ensure the performance of passing the curve, and abrasion is reduced; the common node is difficult to realize the characteristics, and particularly for old lines, large abrasion of wheel rails and lines and high maintenance cost, a new product is required to be used, and the liquid rubber composite node with the characteristics is also required to be used.
The liquid rubber composite rotating arm node working principle is as follows: two hollow cavity structures are designed in the rubber part, the two cavities are communicated through a flow passage design, and a sealed incompressible (viscous) liquid is filled in a cavity in advance. Under the action of load, the volumes in the two cavities change, and liquid flows between the two cavities to generate damping, so that vibration energy is consumed, and the aim of damping vibration is fulfilled. During low-frequency vibration, liquid flows up and down through the channel to play a role in large damping, liquid in a high-frequency section cannot flow in time, the damping value is small, vibration is effectively isolated, dynamic stiffness under high-frequency vibration is basically stable and unchanged, and the function of preventing dynamic hardening is played. The frequency ratio of the system is basically kept unchanged, and a good vibration reduction effect is still achieved.
Since the liquid-rubber compound boom node has a structure including a multi-layer structure, when liquid is in the hydraulic chamber, the liquid is easy to flow out from the gap between the two adjacent layers of structures, and therefore, a sealing structure is required to be provided in the liquid-rubber compound boom node to prevent the liquid from flowing out. Then, while the volume in the hydraulic chamber is constantly changed under the dual actions of the load and the vibration, the pressure of the liquid in the hydraulic chamber is large, and the situation that the pressure of the liquid is increased sharply easily occurs. The space for arranging the sealing structure in the liquid rubber composite rotating arm node is very small, and the single sealing structure is difficult to effectively seal the multilayer structure and the liquid rubber composite rotating arm node with high liquid pressure. Therefore, the sealing method and structure of the liquid rubber composite rotating arm node need further research.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: how to effectively seal the liquid with constantly changing pressure and surge in the liquid rubber composite rotating arm node of a multilayer structure in a limited space.
In order to solve the problems, the technical scheme provided by the invention is as follows: a sealing structure of a liquid rubber composite node comprises a mandrel, a rubber body, a vulcanized body outer sleeve, a stop block and an integral outer sleeve; the rubber body is vulcanized between the vulcanizing body outer sleeve and the core shaft to form a whole, the core shaft, the rubber body and the vulcanizing body outer sleeve are enclosed to form a hydraulic cavity with an opening at the outer side, a stop block is arranged in the hydraulic cavity, and the whole outer sleeve is sleeved outside the stop block and the vulcanizing body outer sleeve; the outer sleeve is provided with a stop step opening, the outer sleeve is provided with an outer sleeve step opening matched with the stop step opening, the stop block is covered on the outer sleeve, and a sealing structure is arranged between the stop step opening and the outer sleeve step opening.
Preferably, the cross section of the stop block is T-shaped, the stop block comprises a main body and a cover plate, the cover plate is connected to the outer side of the main body in a seamless mode, and the stop step opening is formed in the cover plate of the T-shaped stop block; the axial direction and the circumferential direction of apron all are provided with backstop step mouth, and backstop step mouth includes second backstop step mouth and first backstop step mouth, and second backstop step mouth sets up in the one end of being close to the main part, and first backstop step mouth sets up in the one end of keeping away from the main part.
Preferably, the vulcanized body outer sleeve is provided with outer sleeve step openings in the axial direction and the circumferential direction, the outer sleeve step openings comprise a second outer sleeve step opening and a first outer sleeve step opening, and the cover plate of the stop block covers the vulcanized body outer sleeve; and the first stopping step port is attached to the first outer sleeve step port, and a spacing groove with an L-shaped section is reserved between the second stopping step port and the second outer sleeve step port in the axial direction and the circumferential direction.
Preferably, an L-shaped sealing strip is arranged in the spacing groove with the L-shaped section, and the sealing strip is pressed at the step opening of the second jacket of the vulcanized body by the cover plate of the stop block.
Preferably, the two ends of the L-shaped sealing strip are respectively provided with a first lug and a third lug, the middle part of the sealing strip is provided with a second lug, and the cover plate of the stop block and the vulcanizing body jacket compress the first lug, the second lug and the third lug in the spacing groove together.
Preferably, the step openings of the first outer sleeve in the axial direction and the circumferential direction of the outer sleeve of the vulcanizing body are provided with grooves sunken towards the inner side of the outer sleeve of the vulcanizing body, sealing blocks are arranged in the grooves, and the cover plate of the stop block and the outer sleeve of the vulcanizing body compress the sealing blocks in the spacing grooves together.
A sealing method of a liquid rubber composite node comprises a core shaft, a rubber body, a vulcanized body outer sleeve, a stop block and an integral outer sleeve; vulcanizing a rubber body between a vulcanizing body outer sleeve and a core shaft to form a whole, enclosing the core shaft, the rubber body and the vulcanizing body outer sleeve to form a hydraulic cavity with an opening at the outer side, arranging a stop block in the hydraulic cavity, and sleeving the whole outer sleeve on the stop block and the vulcanizing body outer sleeve; set up backstop step mouth on the backstop piece to set up on the external cover of vulcanizer with backstop step mouth assorted overcoat step mouth sets up seal structure between backstop step mouth and overcoat step mouth, closes the backstop piece lid and sheathes in the vulcanizer body, thereby seals vulcanization body overcoat and backstop piece.
Preferably, the stop block comprises a main body and a cover plate, the cover plate is connected to the outer side of the main body in a seamless mode, the cross section of the stop block is T-shaped, and a stop step opening is formed in the cover plate of the T-shaped stop block; a second stopping step opening is formed in one end, close to the main body, of the cover plate, and a first stopping step opening is formed in one end, far away from the main body, of the cover plate.
Preferably, a first outer sleeve step opening is formed in the outer sleeve of the vulcanizing body, so that when the cover plate of the stop block covers the outer sleeve of the vulcanizing body, the first outer sleeve step opening can be attached to the first stop step opening; set up second overcoat step mouth on the vulcanizer body overcoat for when the apron lid of backstop piece was closed on the vulcanizer body overcoat, the interval groove that the cross-section is L shape can be left between first overcoat step mouth and the first backstop step mouth.
Preferably, the L-shaped sealing strip is arranged in the L-shaped spacing groove, the two ends of the L-shaped sealing strip are respectively provided with the first lug and the third lug, and the middle part of the sealing strip is provided with the second lug, so that when the cover plate of the stop block and the vulcanizing body jacket press the sealing strip in the spacing groove together, the sealing strip can simultaneously form three seals in the spacing groove; a groove which is sunken towards the inner side of the vulcanization body outer sleeve is formed in the first outer sleeve step opening of the vulcanization body outer sleeve, a sealing block is arranged in the groove, the sealing block is pressed in the interval groove by the cover plate of the stop block and the vulcanization body outer sleeve together, and the first outer sleeve step opening and the first stop step opening are sealed by the sealing block.
The beneficial technical effects of the invention are as follows: the first outer sleeve step opening is provided with a groove, and the groove is internally provided with a sealing block, so that the sealing block seals the first outer sleeve step opening and the first stop step opening. The sealing strip is arranged in the L-shaped spacing groove, the first lug and the third lug are arranged at the two ends of the L-shaped sealing strip respectively, and the second lug is arranged in the middle of the sealing strip, so that when the sealing strip is pressed in the spacing groove by the cover plate of the stop block and the vulcanization body outer sleeve together, the sealing block can simultaneously form three seals for the second outer sleeve step opening and the second stop step opening. Therefore, a multi-stage sealing structure is formed at the stopping step port and the outer sleeve step port, liquid in the hydraulic cavity can be effectively prevented from overflowing, stability of rigidity of the liquid rubber composite node is guaranteed, and stable running of a vehicle is guaranteed.
Drawings
FIG. 1 is a schematic cross-sectional view of the overall structure of the first embodiment;
FIG. 2 is a schematic enlarged view of a portion of the area M in FIG. 1;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 4 is an enlarged partial view of the area F in FIG. 2;
FIG. 5 is an enlarged schematic view of the backstop of FIG. 1;
FIG. 6 is an enlarged schematic view of the carcass jacket on the left side of FIG. 1;
FIG. 7 is an enlarged view of the seal bar in the spacer channel;
in the figure: the core shaft comprises a core shaft 1, a rubber body 2, a vulcanization body outer sleeve 3, a first outer sleeve step opening 31, a second outer sleeve step opening 32, a stop block 4, a main body 41, a cover plate 42, a first stop step opening 421, a second stop step opening 422, an integral outer sleeve 5, a hydraulic cavity 6, a spacing groove 71, a groove 72, a sealing strip 81, a first lug 811, a second lug 812, a third lug 813 and a sealing block 82.
Detailed Description
The invention is further described with reference to the following examples and figures:
example one
As shown in fig. 1, 2, 3 and 4, the liquid rubber compound joint is formed by vulcanizing a rubber body 2 between a vulcanized body casing 3 and a mandrel 1, so that the mandrel 1, the rubber body 2 and the vulcanized body casing 3 are integrated. And the mandrel 1, the rubber body 2 and the vulcanizing body outer sleeve 3 enclose a hydraulic cavity 6 with an opening at the outer side, a stop block 4 is arranged in the hydraulic cavity 6, and the axial section of the stop block 4 is T-shaped. The upper end of the stop block 4 is covered on the outer sleeve 3 of the vulcanizing body, the hydraulic cavity 6 is sealed into a closed cavity, and liquid can be injected into the closed hydraulic cavity 6, so that a node formed by compounding the liquid and the rubber is formed. The whole outer sleeve 5 is in a hollow round pipe shape, the stop block 4 and the vulcanizing body outer sleeve 3 are arranged in the whole outer sleeve 5 in a pre-compression mode, and the whole outer sleeve 5 restrains and compresses the stop block 4 and the vulcanizing body outer sleeve 3.
The cross-section of backstop 4 is the T font, backstop 4 includes main part 41 and apron 42, apron 42 seamless connection is in the outside of main part 41, backstop step mouth all is provided with at backstop 4's apron 42 both ends, the axial direction and the circumferential direction of apron 42 all are provided with backstop step mouth, backstop step mouth includes second backstop step mouth 422 and first backstop step mouth 421, second backstop step mouth 422 sets up the one end of being close to main part 41, first backstop step mouth 421 sets up the one end of keeping away from main part 41.
As shown in fig. 1, 5 and 6, one end of the vulcanization body outer sleeve 3 is provided with an outer sleeve step opening matched with the stop step opening, the vulcanization body outer sleeve 3 is provided with outer sleeve step openings in the axial direction and the circumferential direction, the outer sleeve step openings comprise a second outer sleeve step opening 32 and a first outer sleeve step opening 31, and the cover plate 42 of the stop block 4 covers the vulcanization body outer sleeve 3. And when the first stopping step opening 421 and the first outer sleeve step opening 31 are tightly attached together, a spacing groove 71 with an L-shaped section is left between the second stopping step opening 422 and the second outer sleeve step opening 32 in the axial direction and the circumferential direction.
The axial direction referred to in the present embodiment refers to the left-right direction in fig. 1, and the circumferential direction refers to the circumferential direction of the entire jacket 5 in fig. 3. Thus, fig. 1 can be said to be a sectional view in the axial direction of the liquid rubber composite node, and fig. 3 is a sectional view in the circumferential direction of the liquid rubber composite node. The stopping step opening in the axial direction on the stopping block 4 is matched with the outer sleeve step opening in the axial direction of the outer sleeve 3 of the vulcanizing body in shape, size and position; the stop step mouth in the circumferential direction on the stop block 4 is matched with the outer sleeve step mouth in the circumferential direction of the vulcanized body outer sleeve 3 in shape, size and position.
As shown in fig. 1 to 7, an L-shaped sealing strip 81 is provided in the partition groove 71 having an L-shaped cross section, and the cover plate 42 of the stopper 4 presses the sealing strip 81 against the second jacket step opening 32 of the vulcanized body jacket 3. The two ends of the L-shaped sealing strip 81 are respectively provided with a first lug 811 and a third lug 813, the middle part of the sealing strip 81 is provided with a second lug 812, the cover plate 42 of the stop block 4 and the vulcanization body jacket 3 press the first lug 811, the second lug 812 and the third lug 813 in the spacing groove 71 together, so that the sealing strip 81 is pressed between the stop block 4 and the vulcanization body jacket 3, and three seals are formed on the stop block 4 and the vulcanization body jacket 3 simultaneously. The shape and size of the spacing groove 71 are indicated in phantom in fig. 7, and the shape and size of the sealing strip 81 when uncompressed is shown in fig. 7.
In the present embodiment, the L-shaped intermediate partition groove 71 has both the axial direction and the circumferential direction, and the L-shaped seal strip 81 provided in the L-shaped intermediate partition groove 71 also has both the axial direction and the circumferential direction. And the first lug 811, the second lug 812 and the third lug 813 are arranged in sequence in the axial direction and the circumferential direction of the L-shaped sealing strip 81, that is, the L-shaped sealing strip 81 can enable the liquid rubber composite node to simultaneously form three seals for the stopping block 4 and the vulcanizing body outer sleeve 3 in the axial direction and the circumferential direction.
This embodiment is when making liquid rubber composite node, and it is big than the off-the-shelf size to make at whole overcoat 5 and the both ends of vulcanizing body overcoat 3 all in axial direction earlier to all set up the assorted chamfer on whole overcoat 5 and vulcanizing body overcoat 3, the equipment direction of the whole overcoat 5 of being convenient for and the effective length of increase interference fit of vulcanizing body overcoat 3. Therefore, the sealing reliability of the liquid rubber composite node is improved, the liquid rubber composite node is subjected to pressure maintaining after assembly, and the parts are ensured to be in close contact with each other. And chamfering is carried out after pressure maintaining, so that the end face of the liquid rubber composite node after assembling is free of a chamfering structure, and the length of the whole liquid rubber composite node in the axial direction meets the assembling requirement. The length of the integral outer sleeve 5 and the length of the vulcanized body outer sleeve 3 in the axial direction are firstly prolonged, so that the effective length of interference fit is increased, and pressure maintaining is carried out after assembly, so that the sealing reliability of the liquid rubber composite node is improved; and then, after pressure maintaining is finished, the chamfer is machined to reduce the length of the liquid rubber composite node in the axial direction, so that the limited length of the liquid rubber composite node is fully utilized, and the assembly requirement is met.
Since the liquid rubber compound node sometimes has the situation that the pressure of the liquid in the hydraulic cavity 6 increases suddenly, in order to prevent the three seals of the sealing strip 81 from failing completely under the limit condition, in the embodiment, the joint of the stop block 4 and the vulcanized body outer sleeve 3 is set to be step-shaped, the groove 72 is arranged at the step opening 31 of the first outer sleeve, and the sealing block 82 is arranged in the groove 72, so that double sealing protection is formed, the stability of the rigidity of the liquid rubber compound node is ensured, and the stable running of the vehicle is ensured.
Obviously, several modifications and variations are possible without departing from the principles of the invention as described.
Claims (10)
1. A sealing structure of a liquid rubber composite node is characterized in that the liquid rubber composite node comprises a mandrel, a rubber body, a vulcanized body outer sleeve, a stop block and an integral outer sleeve; the rubber body is vulcanized between the vulcanizing body outer sleeve and the core shaft to form a whole, the core shaft, the rubber body and the vulcanizing body outer sleeve are enclosed to form a hydraulic cavity with an opening at the outer side, a stop block is arranged in the hydraulic cavity, and the whole outer sleeve is sleeved outside the stop block and the vulcanizing body outer sleeve; the outer sleeve is provided with a stop step opening, the outer sleeve is provided with an outer sleeve step opening matched with the stop step opening, the stop block is covered on the outer sleeve, and a sealing structure is arranged between the stop step opening and the outer sleeve step opening.
2. The sealing structure of the liquid rubber compound node as claimed in claim 1, wherein the cross section of the stop block is T-shaped, the stop block comprises a main body and a cover plate, the cover plate is seamlessly connected to the outer side of the main body, and the stop step opening is formed in the cover plate of the T-shaped stop block; the axial direction and the circumferential direction of apron all are provided with backstop step mouth, and backstop step mouth includes second backstop step mouth and first backstop step mouth, and second backstop step mouth sets up in the one end of being close to the main part, and first backstop step mouth sets up in the one end of keeping away from the main part.
3. The sealing structure of the liquid rubber composite node according to claim 2, wherein an outer sleeve step port is formed in both the axial direction and the circumferential direction of the outer sleeve of the vulcanizing body, the outer sleeve step port comprises a second outer sleeve step port and a first outer sleeve step port, and the cover plate of the stop block covers the outer sleeve of the vulcanizing body; and the first stopping step port is attached to the first outer sleeve step port, and a spacing groove with an L-shaped section is reserved between the second stopping step port and the second outer sleeve step port in the axial direction and the circumferential direction.
4. The sealing structure of a liquid rubber compound node according to claim 3, wherein an L-shaped sealing strip is arranged in the spacing groove with the L-shaped cross section, and the sealing strip is pressed at the step opening of the second jacket of the vulcanized body jacket by the cover plate of the stop block.
5. The sealing structure of a liquid rubber compound joint according to claim 4, wherein the two ends of the L-shaped sealing strip are respectively provided with a first projection and a third projection, the middle part of the sealing strip is provided with a second projection, and the cover plate of the stop block and the vulcanization body jacket together compress the first projection, the second projection and the third projection in the spacing groove.
6. A liquid rubber compound joint sealing structure according to claim 3, wherein the step openings of the first outer sleeve in the axial direction and the circumferential direction of the vulcanized body outer sleeve are provided with grooves recessed towards the inner side of the vulcanized body outer sleeve, sealing blocks are arranged in the grooves, and the cover plate of the stop block and the vulcanized body outer sleeve press the sealing blocks in the spacing grooves together.
7. The sealing method of the liquid rubber composite node is characterized in that the liquid rubber composite node comprises a mandrel, a rubber body, a vulcanized body outer sleeve, a stop block and an integral outer sleeve; vulcanizing a rubber body between a vulcanizing body outer sleeve and a core shaft to form a whole, enclosing the core shaft, the rubber body and the vulcanizing body outer sleeve to form a hydraulic cavity with an opening at the outer side, arranging a stop block in the hydraulic cavity, and sleeving the whole outer sleeve on the stop block and the vulcanizing body outer sleeve; set up backstop step mouth on the backstop piece to set up on the external cover of vulcanizer with backstop step mouth assorted overcoat step mouth sets up seal structure between backstop step mouth and overcoat step mouth, closes the backstop piece lid and sheathes in the vulcanizer body, thereby seals vulcanization body overcoat and backstop piece.
8. The method for sealing a liquid rubber composite node as claimed in claim 7, wherein the stopper block comprises a main body and a cover plate, the cover plate is seamlessly connected to the outer side of the main body, the cross section of the stopper block is T-shaped, and a stopper step opening is arranged on the cover plate of the T-shaped stopper block; a second stopping step opening is formed in one end, close to the main body, of the cover plate, and a first stopping step opening is formed in one end, far away from the main body, of the cover plate.
9. The method for sealing the liquid rubber composite node as claimed in claim 8, wherein a first outer sleeve step opening is formed in the outer sleeve of the vulcanizing body, so that when the cover plate of the stop block covers the outer sleeve of the vulcanizing body, the first outer sleeve step opening can be attached to the first stop step opening; set up second overcoat step mouth on the vulcanizer body overcoat for when the apron lid of backstop piece was closed on the vulcanizer body overcoat, the interval groove that the cross-section is L shape can be left between first overcoat step mouth and the first backstop step mouth.
10. The method for sealing the liquid rubber composite node according to claim 8, wherein an L-shaped sealing strip is arranged in the L-shaped spacing groove, a first lug and a third lug are respectively arranged at two ends of the L-shaped sealing strip, and a second lug is arranged in the middle of the sealing strip, so that when the sealing strip is pressed in the spacing groove by the cover plate of the stop block and the vulcanizing body outer sleeve together, the sealing strip can form three seals in the spacing groove at the same time; a groove which is sunken towards the inner side of the vulcanization body outer sleeve is formed in the first outer sleeve step opening of the vulcanization body outer sleeve, a sealing block is arranged in the groove, the sealing block is pressed in the interval groove by the cover plate of the stop block and the vulcanization body outer sleeve together, and the first outer sleeve step opening and the first stop step opening are sealed by the sealing block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111296781.XA CN113958659A (en) | 2021-11-04 | 2021-11-04 | Sealing structure and sealing method of liquid rubber composite node |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111296781.XA CN113958659A (en) | 2021-11-04 | 2021-11-04 | Sealing structure and sealing method of liquid rubber composite node |
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| CN113958659A true CN113958659A (en) | 2022-01-21 |
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| CN202111296781.XA Pending CN113958659A (en) | 2021-11-04 | 2021-11-04 | Sealing structure and sealing method of liquid rubber composite node |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| JP2015172424A (en) * | 2014-03-12 | 2015-10-01 | 山下ゴム株式会社 | Liquid sealing type vibration-proof device |
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