CN216618180U - Pin type limiter - Google Patents
Pin type limiter Download PDFInfo
- Publication number
- CN216618180U CN216618180U CN202122329063.XU CN202122329063U CN216618180U CN 216618180 U CN216618180 U CN 216618180U CN 202122329063 U CN202122329063 U CN 202122329063U CN 216618180 U CN216618180 U CN 216618180U
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- China
- Prior art keywords
- pin
- limiting
- stop
- boss
- radial
- 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.)
- Expired - Fee Related
Links
- 229920001971 elastomer Polymers 0.000 claims description 6
- 238000004073 vulcanization Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims 2
- 238000010276 construction Methods 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a pin type stopper, comprising: the device comprises an upper base, an axial buffer cushion, a radial buffer cushion, a positioning pin, a limiting pin and a lower base; the lower surface of the mounting panel of the upper base is provided with a first limiting boss; two second limiting bosses which are parallel are arranged on the upper surface of the mounting panel of the lower base; the first limiting boss of the upper base is positioned between the two second limiting bosses of the lower base; an axial buffer cushion is arranged between each side surface of the first limiting boss and the second limiting boss opposite to the first limiting boss; the limiting pin is in pin joint with the first limiting boss and the second limiting boss to realize the connection of the upper base and the lower base; a cylindrical radial cushion pad is arranged between the outer circumferential surface of the limiting pin and the inner circumferential surface of the circular through hole of the first limiting boss; the utility model has the characteristics of compact structure, multi-directional limiting and good environmental adaptability, and can be widely applied to the impact protection of equipment.
Description
Technical Field
The utility model belongs to the technical field of vibration noise control, and particularly relates to a pin type limiter.
Background
The natural frequency of the vibration isolation device is lower and lower in order to improve the vibration isolation effect, and the development trend makes the stability of the vibration isolation device worse and worse. Under the working condition of ship swinging or impact, the displacement of the vibration isolation device may exceed the bearing capacity of the pipeline. Therefore, the low frequency vibration isolation device needs to be protected by matching with a limiter.
The low-frequency vibration isolation device in the ship has the following requirements on the limiter:
a. the installation space in the ship is very narrow, and strict requirements are imposed on the volume of the limiter;
b. in order to reduce the number of the installation of the limiters, the limiters are required to have multidirectional limiting capacity;
c. the ship environment is severe, the environment adaptability of the limiter is strong, and the service life is long.
However, the existing limiter has the defects of large volume, single limiting capacity and short service life, and does not meet the requirements of the existing low-frequency vibration isolation device on the limiter.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a pin type stopper, which has the characteristics of compact structure, multi-directional limiting and good environmental adaptability, and can be widely applied to impact protection of equipment.
The utility model is realized by the following technical scheme:
a pin stop comprising: the device comprises an upper base, an axial buffer cushion, a radial buffer cushion, a positioning pin, a limiting pin and a lower base;
the lower surface of the mounting panel of the upper base is provided with a first limiting boss; a circular through hole is processed on the first limiting boss;
two second limiting bosses which are parallel are arranged on the upper surface of the mounting panel of the lower base; coaxial circular through holes are processed on the two second limiting bosses;
the first limiting boss of the upper base is positioned between the two second limiting bosses of the lower base, and the circular through hole on the first limiting boss is coaxial with the circular through hole on the second limiting boss to form a circular mounting channel; an axial cushion pad is arranged between each side surface of the first limiting boss and the second limiting boss opposite to the first limiting boss;
the limiting pin is coaxially arranged in the circular mounting channel to realize the connection of the upper base and the lower base; two ends of the limiting pin are fixed on the lower base through positioning pins; and a cylindrical radial cushion pad is arranged between the outer circumferential surface of the limiting pin and the inner circumferential surface of the circular through hole of the first limiting boss.
Furthermore, the two axial buffering cushions are respectively fixed on two sides of the first limiting boss.
Furthermore, the radial cushion pad is fixed on the outer circumferential surface of the limit pin in a wrapping mode.
Furthermore, the axial cushion pad and the first limiting boss are fixed by bonding or vulcanization.
Furthermore, the radial cushion pad and the limit pin are fixed by bonding or vulcanization.
Furthermore, the spacer pin is of a cylindrical structure or a square rod structure.
Furthermore, the upper base, the limiting pin and the lower base are made of metal materials.
Furthermore, the axial cushion pad and the radial cushion pad are both made of rubber materials or polyurethane.
Further, the positioning pin is a cotter pin or a cylindrical pin.
Further, an annular groove for mounting a radial cushion pad is formed in the middle of the limit pin, and the radial cushion pad is mounted in the annular groove of the limit pin, so that the outer diameter of the radial cushion pad is not larger than that of the unprocessed annular groove part of the limit pin.
Has the advantages that:
(1) the limiting device has a multidirectional limiting function, namely after the limiting pin moves for positioning along the radial direction of the limiting pin, the limiting pin is contacted with the first limiting boss of the upper base to realize radial limiting; when the limiting pin moves for positioning along the axial direction, the second limiting boss of the lower base is contacted with the first limiting boss of the upper base, so that the axial limiting is realized.
(2) The limiting device has a very compact structure, fully utilizes the gaps between the limiting pin and the upper base and between the lower base and the upper base, has a compact structure and high material utilization rate, and can greatly reduce the requirement of installation space.
(3) The main structure of the limiter is made of high-strength metal, and the material of the cushion pad can also be made of rubber, polyurethane and other elastomer materials according to the requirements of oil resistance and water resistance, so that the limiter is suitable for various use environments in ships and warships, has good environmental adaptability and prolongs the service life of the limiter.
(4) The limiting device is convenient to disassemble and assemble, the positioning pin can be disassembled and assembled on site by using tools such as universal pliers and the like, and the disassembling, assembling, replacing and other work of the limiting pin are realized.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is an assembly view of the present invention;
the device comprises a base, a positioning pin, a limiting pin and a lower base, wherein the base comprises an upper base 1, an axial cushion 2, a radial cushion 3, a positioning pin 4, a limiting pin 5 and a lower base 6.
Detailed Description
The utility model is described in detail below by way of example with reference to the accompanying drawings.
Example 1:
this embodiment provides a pin stop, see fig. 1-2, comprising: the device comprises an upper base 1, an axial buffer pad 2, a radial buffer pad 3, a positioning pin 4, a limiting pin 5 and a lower base 6;
the lower surface of the mounting panel of the upper base 1 is provided with a first limiting boss which can provide main limiting rigidity; a circular through hole is processed on the first limiting boss, and the circular through hole can enable the limiting pin 5 to penetrate through the middle of the first limiting boss; the edges of the two sides of the first limiting boss are respectively provided with a rounding, and the rounding can reduce the stress of the first limiting boss;
the upper surface of the mounting panel of the lower base 6 is provided with two second limiting bosses which are parallel, and the second limiting bosses can provide main limiting rigidity; coaxial circular through holes are processed on the two second limiting bosses, and the circular through holes can enable the limiting pin 5 to be fixed on the lower base 6; the edges of the opposite sides of the two second limiting bosses are respectively provided with a rounding, and the rounding can reduce the stress of the second limiting bosses;
the first limiting boss of the upper base 1 is positioned between the two second limiting bosses of the lower base 6, and the circular through hole on the first limiting boss is coaxial with the circular through hole on the second limiting boss to form a circular mounting channel; an axial buffer pad 2 is arranged between each side face of the first limiting boss and the second limiting boss opposite to the side face, and the axial buffer pads 2 are used for buffering the collision of the first limiting boss and the second limiting boss in the axial direction, so that the collision of the upper base 1 and the lower base 6 in the axial direction is buffered; in this embodiment, the two axial cushions 2 are respectively fixed on two sides of the first limit boss in an adhering manner; a round hole which is the same as the round through hole on the first limiting boss is processed in the middle of the axial buffer pad 2, and a limiting pin 5 can penetrate through the round hole;
the limiting pin 5 is of a cylindrical structure, and the limiting pin 5 is coaxially arranged in the circular mounting channel to realize the connection of the upper base 1 and the lower base 6; the limiting pin is of a cylindrical structure, so that the limiting device of the embodiment has the same limiting gap in the radial direction;
two ends of the limiting pin 5 are fixed on the lower base 6 through the positioning pins 4; namely, the positioning pin 4 is inserted into the second limiting boss of the lower base 6 and the limiting pin 5 along the radial direction of the limiting pin 5; a cylindrical radial buffer pad 3 is arranged between the outer circumferential surface of the limiting pin 5 and the inner circumferential surface of the circular through hole of the first limiting boss, and the radial buffer pad 3 is used for buffering the radial collision between the first limiting boss and the limiting pin 5 so as to buffer the radial collision between the upper base 1 and the lower base 6; in this embodiment, the radial cushion pad 3 is coated and bonded on the outer circumferential surface of the stopper pin 5.
The upper base 1, the limiting pin 5 and the lower base 6 are made of high-strength metal;
the axial cushion 2 and the radial cushion 3 are made of rubber;
the positioning pin 4 is a split pin, so that the limiting pin 5 can be conveniently disassembled and assembled.
The mounting panels of the upper base 1 and the lower base 6 are respectively provided with a plurality of through holes, when the vibration isolator works, the upper base 1 and the lower base 6 can be connected with two pieces of equipment respectively positioned at two sides of the vibration isolator through the through holes, the limiting connection of the two pieces of equipment is realized, the displacement of the vibration isolator is further controlled within a set range, and the protection of the vibration isolator is realized; when the limiting pin 5 moves for positioning along the radial direction, the limiting pin 5 is contacted with the first limiting boss of the upper base 1, so that the radial limiting of the upper base 1 and the lower base 6 is realized; when the limiting pin 5 moves axially for positioning and moving, the second limiting boss of the lower base 6 is contacted with the first limiting boss of the upper base 1, so that the axial limiting of the upper base 1 and the lower base 6 is realized; therefore, the multi-directional limiting function of the limiting stopper is realized.
Example 2: on the basis of embodiment 1, the limit pin 5 is replaced by a square rod structure, so that the limit force during initial contact can be increased.
Example 3: on the basis of the embodiment 1 or 2, the materials of the axial cushion 2 and the radial cushion 3 are replaced by other elastomer materials such as polyurethane, so that the cushion can adapt to more complicated use environments.
Example 4: on the basis of the embodiment 1, 2 or 3, the middle part of the limit pin 5 is provided with the annular groove for installing the radial cushion pad 3, and the radial cushion pad 3 is installed in the annular groove of the limit pin 5, so that the outer diameter of the radial cushion pad 3 is not larger than that of the unprocessed annular groove part of the limit pin 5, and the limit pin 5 with the radial cushion pad 3 is further convenient to install in the circular installation channel.
Example 5: on the basis of the embodiments 1, 2, 3 or 4, the bonding fixation of the axial cushion pad 2 and the radial cushion pad 3 with metal (i.e. the first limit boss and the limit pin 5) is replaced by vulcanization fixation, so that the fixation of the axial cushion pad 2 and the radial cushion pad 3 is firmer.
Example 6: on the basis of the embodiments 1, 2, 3, 4 or 5, the positioning pin 4 is replaced by a cylindrical pin, so that the connection between the limit pin 5 and the lower base 6 is firmer.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A pin-type retainer, comprising: the device comprises an upper base (1), an axial cushion pad (2), a radial cushion pad (3), a positioning pin (4), a limiting pin (5) and a lower base (6);
the lower surface of the mounting panel of the upper base (1) is provided with a first limiting boss; a circular through hole is processed on the first limiting boss;
the upper surface of the mounting panel of the lower base (6) is provided with two second limiting bosses which are parallel; coaxial circular through holes are processed on the two second limiting bosses;
the first limiting boss of the upper base (1) is positioned between the two second limiting bosses of the lower base (6), and the circular through hole on the first limiting boss is coaxial with the circular through hole on the second limiting boss to form a circular mounting channel; an axial cushion pad (2) is arranged between each side surface of the first limiting boss and the second limiting boss opposite to the side surface;
the limiting pin (5) is coaxially arranged in the circular mounting channel to realize the connection between the upper base (1) and the lower base (6); two ends of the limiting pin (5) are fixed on the lower base (6) through positioning pins (4); and a cylindrical radial buffer pad (3) is arranged between the outer circumferential surface of the limit pin (5) and the inner circumferential surface of the circular through hole of the first limit boss.
2. A pin stop according to claim 1, wherein two of said axial cushions (2) are fixed to either side of said first stop ledge.
3. A pin stop according to claim 1, wherein the radial cushion (3) is fixed around the outer circumference of the stop pin (5).
4. A pin stop according to claim 2, wherein the axial cushion (2) is secured to the first stop boss by gluing or vulcanization.
5. A pin stop according to claim 3, wherein the radial cushion (3) is fixed to the stop pin (5) by gluing or vulcanization.
6. A pin stop according to any one of claims 1 to 5, characterised in that the stop pin (5) is of cylindrical or square rod construction.
7. A pin stop according to any one of claims 1 to 5, wherein the upper base (1), the stop pin (5) and the lower base (6) are made of metal.
8. A pin stop according to any one of claims 1 to 5, characterised in that the axial (2) and radial (3) cushions are of rubber or polyurethane.
9. A pin stop according to any one of claims 1 to 5, wherein the locating pin (4) is a cotter pin or a cylindrical pin.
10. A pin stop according to any one of claims 1-5, wherein an annular groove is provided in the middle of the stop pin (5) for receiving the radial cushion (3), and wherein the radial cushion (3) is received in the annular groove of the stop pin (5) such that the outer diameter of the radial cushion (3) is not greater than the outer diameter of the unprocessed annular groove portion of the stop pin (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122329063.XU CN216618180U (en) | 2021-09-24 | 2021-09-24 | Pin type limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122329063.XU CN216618180U (en) | 2021-09-24 | 2021-09-24 | Pin type limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216618180U true CN216618180U (en) | 2022-05-27 |
Family
ID=81691671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122329063.XU Expired - Fee Related CN216618180U (en) | 2021-09-24 | 2021-09-24 | Pin type limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216618180U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898652A (en) * | 2021-09-24 | 2022-01-07 | 中国船舶重工集团公司第七一九研究所 | Pin type limiter |
-
2021
- 2021-09-24 CN CN202122329063.XU patent/CN216618180U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898652A (en) * | 2021-09-24 | 2022-01-07 | 中国船舶重工集团公司第七一九研究所 | Pin type limiter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220527 |