CN114251409A - Saddle-shaped rubber hydraulic composite node and assembling method thereof - Google Patents
Saddle-shaped rubber hydraulic composite node and assembling method thereof Download PDFInfo
- Publication number
- CN114251409A CN114251409A CN202111453223.XA CN202111453223A CN114251409A CN 114251409 A CN114251409 A CN 114251409A CN 202111453223 A CN202111453223 A CN 202111453223A CN 114251409 A CN114251409 A CN 114251409A
- Authority
- CN
- China
- Prior art keywords
- saddle
- shaped rubber
- inner sleeve
- mandrel
- groove
- 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.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 57
- 239000007788 liquid Substances 0.000 claims abstract description 43
- 150000001875 compounds Chemical class 0.000 claims description 25
- 230000010355 oscillation Effects 0.000 claims description 15
- 230000000284 resting effect Effects 0.000 claims 2
- 238000013016 damping Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 230000003068 static effect Effects 0.000 description 7
- 238000002955 isolation Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
- F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
- F16F13/14—Units of the bushing type, i.e. loaded predominantly radially
- F16F13/1445—Units of the bushing type, i.e. loaded predominantly radially characterised by method of assembly, production or treatment
- F16F13/1454—Sealing of units
-
- 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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
- F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
- F16F13/14—Units of the bushing type, i.e. loaded predominantly radially
- F16F13/1445—Units of the bushing type, i.e. loaded predominantly radially characterised by method of assembly, production or treatment
-
- 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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
- F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
- F16F13/14—Units of the bushing type, i.e. loaded predominantly radially
- F16F13/1481—Units of the bushing type, i.e. loaded predominantly radially characterised by features of plastic springs, e.g. presence of cavities or stiffeners; characterised by features of flexible walls of equilibration chambers, i.e. membranes
Abstract
The invention belongs to the technical field of vibration reduction, and particularly discloses a saddle-shaped rubber hydraulic composite node which comprises a mandrel, an inner sleeve, an outer sleeve and a saddle-shaped rubber body vulcanized between the inner sleeve and the outer sleeve, wherein the inner sleeve is symmetrically provided with two openings I in the axial direction; the joint of the mandrel and the inner sleeve is provided with a sealing groove positioned on the inner side of the liquid cavity, and a sealing element is arranged in the sealing groove. The invention mainly solves the technical problem that the traditional hydraulic structure of the integral spherical rubber node cannot be applied to the saddle type rubber node, and has good sealing reliability. The invention also provides an assembly method of the saddle-shaped rubber hydraulic composite node.
Description
Technical Field
The invention relates to a saddle-shaped rubber hydraulic composite node and an assembling method thereof, belonging to the technical field of vibration reduction.
Background
The hydraulic composite node is a connecting damping part widely applied to railway vehicles, and is mainly installed on a bogie frame of a vehicle to connect an axle box rotating arm and the bogie so as to improve the running stability and safety of the vehicle. The hydraulic compound node generally comprises two liquid cavities which are communicated with each other, sealed incompressible liquid is filled in one liquid cavity in advance, and the volumes in the two liquid cavities are changed under the action of impact load, so that the liquid flows between the two liquid cavities to generate damping, the vibration energy is consumed, and the purpose of damping the vibration is achieved. In the prior art, the following patents relate to hydraulic compound nodes:
1. the invention patent with patent number "201910414300.7" and the patent name "a liquid composite bushing" specifically comprises: the hydraulic fluid conveying device comprises a mandrel, a rubber body, a flow channel and an outer sleeve, wherein the rubber body, the flow channel and the outer sleeve jointly limit two liquid cavities used for containing hydraulic fluid, and the two liquid cavities are located between two radial protrusions in the circumferential direction and are communicated with each other through the flow channel. The structure of the liquid composite bushing can obviously reduce the number of parts and components, and has good variable rigidity performance and sealing effect.
2. The invention patent with the patent number of '201520531264. X' and the patent name of 'a shaft box node' comprises a mandrel, an elastic sleeve and a shell, wherein a through hole penetrating through the mandrel is formed in the middle of the mandrel, the elastic sleeve is sleeved on the outer wall of the mandrel, the elastic sleeve is provided with a first cavity and a second cavity, the bottom of the first cavity and the bottom of the second cavity are respectively communicated with two ends of the through hole to form a cavity body, liquid is contained in the cavity body, and the shell is sleeved outside the elastic sleeve. The patent has the function of dynamically adjusting the dynamic rigidity or the static rigidity of the axle box node.
3. The invention has the patent number of 201210145647.4, the patent name of the invention is 'a dynamic stiffness adjusting method of a rubber joint with liquid damping and a rubber joint', the invention comprises a metal outer sleeve, a rubber joint, a throttling channel adjusting device and the like, the concrete structure is that a proper hole is arranged on the outer surface of the rubber joint, a closed cavity is formed after the metal outer sleeve is pressed on the outer surface of the rubber joint, the cavity is arranged in the relative motion direction of a rubber joint mandrel and the outer sleeve, the two cavities are connected through a throttling channel and are symmetrically distributed at two sides of the axis of the rubber joint, when the mandrel of the rubber joint and the outer sleeve do relative motion, the volume of one side of the cavity on the two sides of the mandrel is reduced, the volume of the other side of the cavity is increased, so that the liquid damping medium on the side with the reduced volume flows to the side with the increased volume through the small hole, and the liquid damping medium generates damping force due to the damping effect when passing through the throttling channel. The size of the throttling channel can be changed through an adjusting device, so that the damping force can be adjusted, and the required dynamic stiffness can be obtained.
From the above, the existing hydraulic composite node has good variable rigidity performance and sealing effect, or can adjust dynamic and static rigidity, but the existing hydraulic composite node is mostly in a conventional cylindrical structure; however, the current domestic railway vehicle adopts a saddle-type rubber body structure in some scenes, and how to design a rubber hydraulic composite node for the saddle-type rubber body structure to meet the market demand is a problem to be solved urgently.
Disclosure of Invention
The invention aims to provide a saddle-shaped rubber hydraulic composite node which is suitable for a saddle-shaped rubber body structure in the existing railway vehicle. The invention also provides an assembly method of the saddle-shaped rubber hydraulic composite node.
In order to achieve the purpose, the invention provides the following technical scheme:
a saddle-shaped rubber hydraulic composite node comprises a mandrel, an inner sleeve arranged on the mandrel, an outer sleeve arranged on the outer side of the inner sleeve and a saddle-shaped rubber body vulcanized between the inner sleeve and the outer sleeve, wherein the inner sleeve is provided with two openings I in axial symmetry, and the openings I, the mandrel and the saddle-shaped rubber body jointly form two communicated closed liquid cavities of the hydraulic composite node; the joint of the mandrel and the inner sleeve is provided with a sealing groove positioned on the inner side of the liquid cavity, and a sealing element is arranged in the sealing groove.
Preferably, the mandrel is provided with a first groove matched with the first opening, and the closed liquid cavity is formed by the first opening, the first groove and the saddle-shaped rubber body together.
Preferably, the required starting frequency of the hydraulic compound node is realized by adjusting the width H1 of the first opening and the first groove.
Preferably, the required starting frequency of the hydraulic compound node is realized by adjusting the depth H2 of the first groove.
Preferably, the two annular grooves are symmetrically arranged on the inner sleeve along the radial direction; the annular groove comprises a stop table which prevents the sealing element from falling out, and the stop table and the mandrel together form a sealing inlet.
Preferably, the stop end face of the stop table at the seal inlet is arranged obliquely from the inner side to the outer side of the annular groove toward the axial central axis L of the inner sleeve.
Preferably, the sealing element is of a V-shaped structure and specifically comprises a top corner part, a first side part and a second side part, when the sealing element is placed in the annular groove, the top corner part abuts against the bottom wall of the annular groove, the first side part is limited on the inner wall of the stop table, and the second side part abuts against the mandrel.
Preferably, the inner sleeve is of an inverted I-shaped structure and specifically comprises two flat side connecting discs matched with the saddle-shaped rubber body and a middle hollow shaft located between the two side connecting discs, and the first opening is arranged on the middle hollow shaft.
The method for assembling the saddle-shaped rubber hydraulic composite node comprises the following steps of:
s1: vulcanizing the inner sleeve and the outer sleeve into an integrated structure through a saddle-shaped rubber body;
s2: placing the sealing element into the annular groove of the inner sleeve along the sealing inlet;
s3: the integrated inner sleeve, the integrated outer sleeve and the saddle-shaped rubber body are fixedly connected with the mandrel.
Preferably, the step S3 of fixedly connecting the integrated inner sleeve, outer sleeve and saddle-shaped rubber body to the mandrel specifically includes: the mandrel is fixedly connected in the hollow of the hollow shaft in the middle of the inner sleeve, the first groove in the mandrel is matched with the first opening in the inner sleeve, two liquid cavities are formed together with the saddle-shaped rubber body, and meanwhile, the second side of the sealing element is abutted against the mandrel.
The technical effects are as follows:
1. the invention provides a saddle-shaped rubber hydraulic composite node which is suitable for a saddle-shaped rubber body by arranging an opening I on a hollow shaft in the middle of an inner sleeve and forming a closed liquid cavity of the saddle-shaped rubber hydraulic composite node through the opening I, a mandrel and the saddle-shaped rubber body together.
2. A first groove matched with the first opening is formed in the mandrel, and the closed liquid cavity is formed by the first opening, the first groove and the saddle-shaped rubber body; in order to enhance the vibration reduction, vibration isolation and noise reduction performance of the hydraulic composite node, an optimal dynamic-static stiffness ratio needs to be set for the hydraulic composite node under a specific working condition, and the dynamic-static stiffness ratio of the hydraulic composite node is the dynamic-static stiffness ratio under a specific oscillation starting frequency, so that the oscillation starting frequency of the hydraulic composite node needs to be set first, and an ideal dynamic-static stiffness ratio is further realized under the set specific oscillation starting frequency, so that the hydraulic composite node achieves the optimal vibration reduction, vibration isolation and noise reduction performance; in the invention, the oscillation starting frequency required by the hydraulic compound node can be realized by adjusting the width H1 of the opening I and the groove I, namely, the volume of the hydraulic chamber can be adjusted by adjusting the width H1 of the opening I and the groove I, and the oscillation starting frequency of the hydraulic compound node is further adjusted to meet the ideal dynamic-static stiffness ratio requirement under specific working conditions.
3. In practical application, the saddle-shaped rubber body and the inner sleeve are usually fixed in structure, the regulation of the volume of the liquid cavity through the regulation of the rubber body and the inner sleeve has certain space limitation, and under the condition that the width of the first opening and the width of the first groove are determined, the invention can also regulate the whole volume of the liquid cavity through regulating the depth H2 of the first groove on the mandrel, so as to regulate the starting vibration frequency of the hydraulic compound node.
4. The sealing element is of a V-shaped structure comprising a top corner part, a first side part and a second side part, when the composite node is compressed, the impact pressure of liquid in the liquid cavity is increased, so that the first side part and the second side part are opened towards two sides, and the sealing performance of the hydraulic composite node can be improved.
5. The stop end face of the stop table at the sealing inlet is obliquely arranged from the inner side to the outer side of the annular groove towards the axial central axis L of the inner sleeve, so that on one hand, the stop end face can prevent the sealing element from being separated from the annular groove, and the sealing effect is ensured; on the other hand, backstop terminal surface is favorable to further having strengthened the dynamic seal effect with high-pressure liquid drainage to the ring channel of placing the sealing member, effectively solves sealed insufficient problem.
Drawings
Fig. 1 is a schematic overall structure diagram of a saddle-shaped rubber hydraulic compound node in the embodiment of the invention.
Figure 2 is an isometric view of the inner sleeve.
Fig. 3 is a cross-sectional structural view of the inner sleeve.
Fig. 4 is a partial enlarged view of fig. 3 at P.
Fig. 5 is a sectional view taken along the line a-a in fig. 3.
Fig. 6 is a sectional view taken in the direction B-B in fig. 3.
The reference numerals include: 1. an inner sleeve; 2. a jacket; 3. a mandrel; 4. a saddle-shaped rubber body; 5. a first opening; 6. a first groove; 7. a liquid chamber; 8. an annular groove; 9. a seal member; 10. a stop table; 11. a stop end surface; 12. sealing the inlet; 13. a vertex angle portion; 14. a first side portion; 15. a second side part; 16. an inner wall; 17. a bottom wall; 18. a side connection disc; 19. a central hollow shaft; 20. and (6) accommodating the tank.
Detailed Description
The invention is described in further detail below with reference to figures 1-6.
A saddle-shaped rubber hydraulic compound node is shown in figure 1, wherein the direction M is the axial direction of the hydraulic compound node, and the direction N is the radial direction of the hydraulic compound node; the hydraulic composite node comprises an outer sleeve 2, an inner sleeve 1, a saddle-shaped rubber body 4 and a mandrel 3, wherein the inner sleeve 1 is arranged on the mandrel 3, specifically, the mandrel 3 and the inner sleeve 1 are assembled together in an interference fit manner, and then the connecting end part of the mandrel 3 and the inner sleeve 1 is welded so as to further ensure the sealing performance between the mandrel 3 and the inner sleeve 1; the inner sleeve 1 and the outer sleeve 2 are vulcanized together through a saddle-shaped rubber body 4; the inner sleeve 1 is of an inverted I-shaped structure and specifically comprises two flat side connecting discs 18 matched with the saddle-shaped rubber body 4 and a middle hollow shaft 19 positioned between the two side connecting discs 18, and the saddle-shaped rubber body 4 is vulcanized among the flat side connecting discs 18, the middle hollow shaft 19 and the outer sleeve; the inner sleeve 1 is symmetrically provided with two openings one 5 in the axial direction, as shown in fig. 2, the openings one 5 are symmetrically arranged in the middle of the middle hollow shaft 19 at two sides of the axial central axis L of the inner sleeve 1; as shown in fig. 1, one side of the saddle-shaped rubber body 4 close to the inner sleeve 1 is provided with a receiving groove 20 matched with the first opening 5, the mandrel 3 and the receiving groove 20 of the saddle-shaped rubber body 4 jointly form two communicated closed liquid chambers 7 of a hydraulic composite node, a sealing groove located on the inner side of the liquid chamber 7 is further arranged at the joint of the mandrel 3 and the inner sleeve 1, the sealing groove is an annular groove 8, a sealing element 9 is arranged in the annular groove 8, and the sealing element 9 is used for sealing the hydraulic composite node to prevent liquid from leaking from the welding connecting surface S of the inner sleeve 1 and the mandrel 3. The rubber hydraulic composite node provided by the embodiment is suitable for a saddle-shaped rubber body structure commonly used in the current railway vehicle, and can buffer and damp the railway vehicle.
As shown in FIG. 1, the mandrel 3 is provided with a groove I6 matched with the opening I5, and further, the closed liquid cavity 7 is formed by the opening I5, the groove I6, the mandrel 3 and a containing groove 20 in the saddle-shaped rubber body 4. In order to improve the vibration reduction, vibration isolation and noise reduction performance of the hydraulic composite node, the dynamic and static stiffness ratio of the hydraulic composite node needs to be adjusted under specific working conditions, the optimal vibration reduction, vibration isolation and noise reduction performance of the hydraulic composite node is achieved by setting the optimal dynamic and static stiffness ratio, and the dynamic and static stiffness ratio of the hydraulic composite node is the dynamic and static stiffness ratio under specific oscillation starting frequency, so that the oscillation starting frequency of the hydraulic composite node needs to be set firstly, and the ideal dynamic and static stiffness ratio is achieved under the set specific oscillation starting frequency, so that the hydraulic composite node achieves the optimal vibration reduction, vibration isolation and noise reduction performance; in the actual design process, the volume of the liquid cavity 7 is adjusted to adjust the starting frequency of the hydraulic composite node; in this embodiment, in order to meet the requirement of a specific oscillation starting frequency, the oscillation starting frequency required by the hydraulic compound node can be realized by adjusting the width H1 of the opening one 5 and the groove one 6, and the volume of the liquid cavity 7 can be adjusted by adjusting the width H1 of the opening one 5 and the groove one 6, so as to adjust the oscillation starting frequency of the hydraulic compound node, thereby realizing the optimal dynamic-static stiffness ratio; the width H1 of the opening I5 and the groove I6 is preferably 20mm-80mm, and the selected width value is set according to the specific oscillation starting frequency required in the specific application scene; the width of receiving groove 20 matches the width H1 of opening one 5 and groove one 6.
In practical application, the structures of the saddle-shaped rubber body 4 and the inner sleeve 1 are usually fixed, the accommodating groove 20 in the saddle-shaped rubber body 4, the opening one 5 of the inner sleeve 1 and the groove one 6 of the mandrel 3 are correspondingly matched and have the same width H1, the size of the accommodating groove 20 in the saddle-shaped rubber body 4 and the size of the opening one 5 of the inner sleeve 1 are adjusted by adjusting the width H1, namely, the volume of the liquid cavity 7 has certain space limitation, and when the width H1 of the opening one 5, the accommodating groove 20 and the groove one 5 is determined, the whole volume of the liquid cavity 7 can be adjusted by adjusting the depth H2 of the groove one 5 on the mandrel 3, so that the specific oscillation starting frequency requirement is met.
As shown in fig. 1 and 3, the two annular grooves 8 are symmetrically arranged on the inner sleeve 1 in the radial direction, and the annular grooves 8 are distributed on the central hollow shaft 19 of the inner sleeve 1 in the circumferential direction by 360 °. The sealing element 9 is of a V-shaped structure and specifically comprises a top corner part 13, a first side part 14 and a second side part 15, when the sealing element 9 is placed in the annular groove 8, the top corner part 13 abuts against a bottom wall 17 of the annular groove 8, the first side part 14 is limited on an inner wall 16 of the stop table 10, and the second side part 15 abuts against the mandrel 3. As shown in fig. 1, the annular groove 8 includes a stop table 10 for preventing the sealing element 9 from falling out, the stop table 10 and the mandrel 3 together form a sealing inlet 12, and the sealing element 9 is placed into the annular groove 8 from the sealing inlet 12; as shown in fig. 1 and 4, the stopping end face 11 of the stopping platform 10 located at the sealing inlet 12 is obliquely arranged from the inner side of the annular groove 8 to the outer side toward the axial central axis L of the inner sleeve 1, the obliquely arranged stopping end face 11 is beneficial to draining high-pressure liquid into the annular groove 8 with the sealing element 9 placed therein, when the composite node is compressed, the impact pressure of the liquid drained into the annular groove 8 in the liquid cavity 7 enables the first side portion 14 and the second side portion 15 of the V-shaped sealing element 9 to be opened and abutted towards both sides, the sealing performance of the hydraulic composite node is further improved, the dynamic sealing effect is enhanced, the problem that the sealing at the welding connecting face S of the inner sleeve 1 and the mandrel 3 in the axial direction is insufficient is effectively solved, meanwhile, the obliquely arranged stopping end face 11 can also prevent the sealing element 9 from coming out of the annular groove 8, and the sealing performance is ensured.
The method for assembling the saddle-shaped rubber hydraulic composite node comprises the following steps of:
s1: vulcanizing the inner sleeve 1 and the outer sleeve 2 into an integrated structure through the saddle-shaped rubber body 4; specifically, the saddle-shaped rubber body 4 is vulcanized among the side connecting disc 18, the middle hollow shaft 19 and the outer sleeve of the inner sleeve 1, and the accommodating groove 20 of the saddle-shaped rubber body 4 is matched with the first opening 5 of the inner sleeve 1;
s2: placing the sealing element 9 into the annular groove 8 of the inner sleeve 1 along the sealing inlet 12; wherein the top corner 13 abuts against the bottom wall 17 of the annular groove 8, and the first side part 14 is limited on the inner wall 16 of the stop table 10;
s3: the integrated inner sleeve 1, the outer sleeve 2 and the saddle-shaped rubber body 4 are fixedly connected with the mandrel 3, specifically, the mandrel 3 and the inner sleeve 1 are assembled together in an interference fit mode, the end part where the mandrel 3 and the inner sleeve 1 are connected is welded, a first groove 6 on the mandrel 3 is mutually matched with a first opening 5 of the inner sleeve 1 and forms two liquid cavities 7 together with the saddle-shaped rubber body 4, and meanwhile, a second side part 15 of the sealing element 9 is abutted against the mandrel 3.
The above examples are only illustrative and not restrictive, and those skilled in the art can make modifications to the embodiments of the present invention as required without any inventive contribution thereto after reading the present specification, but all such modifications are intended to be protected by the following claims.
Claims (10)
1. The saddle-shaped rubber hydraulic composite node is characterized by comprising a mandrel (3), an inner sleeve (1) arranged on the mandrel (3), an outer sleeve (2) arranged on the outer side of the inner sleeve (1) and a saddle-shaped rubber body (4) vulcanized between the inner sleeve (1) and the outer sleeve (2), wherein the inner sleeve (1) is symmetrically provided with two first openings (5) in the axial direction, and the first openings (5), the mandrel (3) and the saddle-shaped rubber body (4) jointly form two communicated closed liquid cavities (7) of the hydraulic composite node; the joint of the mandrel (3) and the inner sleeve (1) is provided with a sealing groove positioned on the inner side of the liquid cavity (7), and a sealing piece (9) is arranged in the sealing groove.
2. A saddle-shaped rubber hydraulic compound joint according to claim 1, wherein the mandrel (3) is provided with a first groove (6) matching with the first opening (5), and the closed liquid chamber (7) is formed by the first opening (5), the first groove (6) and the saddle-shaped rubber body (4).
3. The saddle-shaped rubber hydraulic compound node according to claim 2, wherein the required specific oscillation frequency of the hydraulic compound node is achieved by adjusting the width H1 of the first opening (5) and the first groove (6).
4. A saddle rubber hydrodynamic compound node according to claim 3, characterized in that the required oscillation frequency of the hydrodynamic compound node is achieved by adjusting the depth H2 of the first groove (6).
5. The saddle-shaped rubber hydraulic compound joint according to claim 4, wherein the sealing grooves are two annular grooves (8) radially and symmetrically arranged on the inner sleeve (1); the annular groove (8) comprises a stop table (10) for preventing the sealing element (9) from falling out, and the stop table (10) and the mandrel (3) jointly form a sealing inlet (12).
6. Saddle rubber hydrodynamic compound joint according to claim 5, characterized in that the stop end face (11) of the stop land (10) at the seal inlet (12) is arranged obliquely from the inside to the outside of the annular groove (8) towards the axial mid axis L of the inner sleeve (1).
7. A saddle-shaped rubber hydraulic compound node according to claim 6, characterized in that the sealing element (9) is of a "V" configuration, in particular comprising a vertex (13), a first side (14) and a second side (15), the vertex (13) resting on the bottom wall (17) of the annular groove (8), the first side (14) being limited on the inner wall (16) of the stop abutment (10) and the second side (15) resting on the mandrel (3) when the sealing element (9) is placed in the annular groove (8).
8. The saddle-shaped rubber hydraulic compound joint according to claim 7, wherein the inner sleeve (1) is of an inverted 'I' -shaped structure, and specifically comprises two flat side connecting discs (18) matched with the saddle-shaped rubber body (4) and a central hollow shaft (19) positioned between the two side connecting discs (18), and the first opening (5) is arranged on the central hollow shaft (19).
9. A method of assembling a saddle-shaped rubber hydraulic compound node, characterized in that the saddle-shaped rubber hydraulic compound node according to any of claims 5-8 is assembled, comprising the steps of:
s1: vulcanizing the inner sleeve (1) and the outer sleeve (2) into an integrated structure through a saddle-shaped rubber body (4);
s2: placing the sealing element (9) into the annular groove (8) of the inner sleeve (1) along the sealing inlet (12);
s3: the integrated inner sleeve (1), the outer sleeve (2) and the saddle-shaped rubber body (4) are fixedly connected with the mandrel (3).
10. The method for assembling the saddle-shaped rubber hydraulic compound node according to claim 9, wherein the step S3 of fixedly connecting the integrated inner sleeve (1), outer sleeve (2) and saddle-shaped rubber body (4) with the mandrel (3) comprises: the mandrel (3) is fixedly connected in the hollow of the hollow shaft (19) in the middle of the inner sleeve (1), a first groove (6) on the mandrel (3) is matched with a first opening (5) of the inner sleeve (1) and forms two liquid cavities (7) together with the saddle-shaped rubber body (4), and meanwhile, a second side part (15) of the sealing element (9) abuts against the mandrel (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111453223.XA CN114251409A (en) | 2021-12-01 | 2021-12-01 | Saddle-shaped rubber hydraulic composite node and assembling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111453223.XA CN114251409A (en) | 2021-12-01 | 2021-12-01 | Saddle-shaped rubber hydraulic composite node and assembling method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114251409A true CN114251409A (en) | 2022-03-29 |
Family
ID=80791551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111453223.XA Pending CN114251409A (en) | 2021-12-01 | 2021-12-01 | Saddle-shaped rubber hydraulic composite node and assembling method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114251409A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4883260A (en) * | 1987-09-16 | 1989-11-28 | Tokai Rubber Industries, Ltd. | Elastic bushing having fluid chamber filled with highly viscous fluid |
| DE4020713A1 (en) * | 1989-09-14 | 1991-04-04 | Lemfoerder Metallwaren Ag | Rubber sleeve spring with hydraulic damping |
| US5251884A (en) * | 1991-04-23 | 1993-10-12 | Hutchinson | Hydraulic antivibration mounts for damping oscillations in rigid parts |
| JP2002303348A (en) * | 2001-04-05 | 2002-10-18 | Tokai Rubber Ind Ltd | Fluid sealed cylindrical vibration control device and producing method thereof |
| JP2008111558A (en) * | 2007-11-29 | 2008-05-15 | Tokai Rubber Ind Ltd | Fluid filled system toe correct bush and suspension mechanism using it |
| CN101619751A (en) * | 2009-07-24 | 2010-01-06 | 株洲时代新材料科技股份有限公司 | Method for manufacturing and assembling elastic joint rubber elastic element and product thereof |
| US20100102495A1 (en) * | 2008-10-28 | 2010-04-29 | Tokai Rubber Industries, Ltd. | Fluid filled type vibration damping device |
| CN102644693A (en) * | 2012-05-11 | 2012-08-22 | 株洲时代新材料科技股份有限公司 | Adjustment method for dynamic stiffness of rubber joint with liquid damping, and rubber joint |
| CN204845947U (en) * | 2015-07-21 | 2015-12-09 | 上海申通地铁集团有限公司 | Axle box node |
| CN108045395A (en) * | 2017-12-27 | 2018-05-18 | 株洲时代新材料科技股份有限公司 | A kind of overload protection method of pivoted arm panel load and pivoted arm node |
| CN110185735A (en) * | 2019-05-17 | 2019-08-30 | 株洲时代新材料科技股份有限公司 | A kind of liquid composite bush |
| CN110486412A (en) * | 2019-08-30 | 2019-11-22 | 株洲时代新材料科技股份有限公司 | A kind of the radial rigidity adjusting method and structure of liquid rubber composite node |
| WO2021036866A1 (en) * | 2019-08-30 | 2021-03-04 | 株洲时代瑞唯减振装备有限公司 | Method for forming liquid rubber composite node having pipe flow channel |
-
2021
- 2021-12-01 CN CN202111453223.XA patent/CN114251409A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4883260A (en) * | 1987-09-16 | 1989-11-28 | Tokai Rubber Industries, Ltd. | Elastic bushing having fluid chamber filled with highly viscous fluid |
| DE4020713A1 (en) * | 1989-09-14 | 1991-04-04 | Lemfoerder Metallwaren Ag | Rubber sleeve spring with hydraulic damping |
| US5251884A (en) * | 1991-04-23 | 1993-10-12 | Hutchinson | Hydraulic antivibration mounts for damping oscillations in rigid parts |
| JP2002303348A (en) * | 2001-04-05 | 2002-10-18 | Tokai Rubber Ind Ltd | Fluid sealed cylindrical vibration control device and producing method thereof |
| JP2008111558A (en) * | 2007-11-29 | 2008-05-15 | Tokai Rubber Ind Ltd | Fluid filled system toe correct bush and suspension mechanism using it |
| US20100102495A1 (en) * | 2008-10-28 | 2010-04-29 | Tokai Rubber Industries, Ltd. | Fluid filled type vibration damping device |
| CN101619751A (en) * | 2009-07-24 | 2010-01-06 | 株洲时代新材料科技股份有限公司 | Method for manufacturing and assembling elastic joint rubber elastic element and product thereof |
| CN102644693A (en) * | 2012-05-11 | 2012-08-22 | 株洲时代新材料科技股份有限公司 | Adjustment method for dynamic stiffness of rubber joint with liquid damping, and rubber joint |
| CN204845947U (en) * | 2015-07-21 | 2015-12-09 | 上海申通地铁集团有限公司 | Axle box node |
| CN108045395A (en) * | 2017-12-27 | 2018-05-18 | 株洲时代新材料科技股份有限公司 | A kind of overload protection method of pivoted arm panel load and pivoted arm node |
| CN110185735A (en) * | 2019-05-17 | 2019-08-30 | 株洲时代新材料科技股份有限公司 | A kind of liquid composite bush |
| CN110486412A (en) * | 2019-08-30 | 2019-11-22 | 株洲时代新材料科技股份有限公司 | A kind of the radial rigidity adjusting method and structure of liquid rubber composite node |
| WO2021036866A1 (en) * | 2019-08-30 | 2021-03-04 | 株洲时代瑞唯减振装备有限公司 | Method for forming liquid rubber composite node having pipe flow channel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0226098B2 (en) | ||
| US4971456A (en) | Fluid-filled elastic center bearing mount | |
| WO2021036866A1 (en) | Method for forming liquid rubber composite node having pipe flow channel | |
| US20220196108A1 (en) | Formation method for liquid rubber composite nodes with damping through holes | |
| CN112096776A (en) | Integral liquid rubber composite node and rigidity adjusting method | |
| CN112065909A (en) | Dynamic stiffness characteristic adjusting method and liquid rubber composite node with auxiliary cavity | |
| US5906360A (en) | Elastic mounting device including fluid-filled elastic mount and synthetic resin bracket for fixing the elastic mount, and method of manufacturing the same | |
| CN110486413A (en) | A method of liquid cavity is formed by adding spacer sleeve in multi-clove type | |
| CN110425248A (en) | A kind of forming method and node with inside groove runner liquid rubber composite node | |
| JPS58203242A (en) | Suspension bush and manufacturing method thereof | |
| CN114251409A (en) | Saddle-shaped rubber hydraulic composite node and assembling method thereof | |
| CN211808911U (en) | Rear torsion beam assembly of hydraulic bushing | |
| CN112112919A (en) | Electromagnetic valve shock absorber | |
| CN112065907B (en) | Secondary sealing method for cavity in liquid rubber composite node | |
| CN114277620A (en) | Rubber hydraulic composite node with damping gap | |
| US20230204087A1 (en) | Hydraulic composite bushing, and sealing method for same | |
| CN110397700A (en) | The method and cavity structure of liquid cavity are formed by adding spacer sleeve in fFour piece type | |
| CN212225857U (en) | Integrated double-air-chamber oil-gas damper | |
| CN112112963B (en) | Dynamic and static stiffness decoupling method for liquid rubber composite node | |
| JPH0227536B2 (en) | ||
| CN111706639B (en) | Hydraulic composite bushing, runner for hydraulic composite bushing and forming method of runner | |
| CN110500376A (en) | A method of liquid cavity is formed by adding spacer sleeve in monoblock type | |
| JPS58170609A (en) | Suspension bushing construction | |
| KR200393117Y1 (en) | Hydro Bush for front lower arm of automobile | |
| CN213628645U (en) | Bushing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |