CN210510030U - Brake clamp damping structure based on lever pin shaft - Google Patents
Brake clamp damping structure based on lever pin shaft Download PDFInfo
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- CN210510030U CN210510030U CN201921051600.5U CN201921051600U CN210510030U CN 210510030 U CN210510030 U CN 210510030U CN 201921051600 U CN201921051600 U CN 201921051600U CN 210510030 U CN210510030 U CN 210510030U
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- lever
- lever pin
- pin shaft
- gallows
- bush
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- 238000013016 damping Methods 0.000 title claims abstract description 49
- 230000035939 shock Effects 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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Abstract
The utility model discloses a braking clamp damping shock-absorbing structure based on lever pin axle. It includes lever and gallows, all be provided with the mounting hole on the both sides side of every lever, it has lever pin shaft bushing all to settle in two mounting holes of every lever, be provided with the connecting hole on the gallows, it has the gallows bush to settle in the connecting hole, every lever pin axle is connected lever and gallows respectively, every lever pin epaxial all is provided with a plurality of annuluses, the epaxial position of each annular place lever pin corresponds with lever pin shaft bushing and gallows bush contact position respectively, go forward behind the annular suit elastic damping spare and install in proper order in gallows bush and the lever pin shaft bushing. By adopting the structure, the purposes of reducing impact and vibration are achieved, the replacement rate of the lever pin shaft is reduced, meanwhile, the rubber damping part is convenient to replace and maintain, the cost is low, the economical efficiency is good, in addition, the whole brake clamp is simple in structure, easy to realize and very high in stability and reliability.
Description
Technical Field
The invention relates to a rail transit railway vehicle braking technology, in particular to a damping shock absorption structure of a braking clamp based on a rod pin shaft.
Background
The basic brake device of the railway vehicle is one of nine key components and is vital to the safe operation of the train, the basic brake device is the only safety guarantee of the train under the condition that other brake types fail, and the brake clamp unit is the main body of the basic brake device of the railway vehicle and consists of a brake cylinder, a clamp mechanism and a series of connecting parts. At present, a three-point hanging type brake clamp unit is generally applied as a system type of a renaming motor train unit. The lever pin shaft plays a role in connecting the lever and the hanger, and simultaneously transmits the braking force to the brake pad holder through the lever so as to transmit the braking force to the brake pad.
And the connecting modes of the lever pin shafts in the existing three-point hanging type brake clamp unit are rigid connection, the lever pin shafts are easy to wear, and the lever pin shafts and the lever pin shaft bushings are impacted when the rigid connection causes braking, so that the whole brake clamp unit has larger vibration noise, and the brake pad is not favorable for stably pressing the brake disc to apply braking force.
In view of the above, how to solve the problem that the lever pin shaft is easily worn, improve the service life of the lever pin shaft, reduce the replacement rate of the lever pin shaft during the maintenance of the clamp, and reduce the vibration and noise of the whole brake clamp unit during the braking is a problem that needs to be solved urgently by technical staff in the industry.
Disclosure of Invention
The invention aims to provide a lever pin shaft-based damping shock absorption structure of a brake clamp, which can reduce abrasion, prolong the service life, reduce the replacement rate of a lever pin shaft and reduce vibration and noise.
In order to solve the technical problem, the damping and shock-absorbing structure of the brake clamp based on the lever pin shaft comprises two levers arranged side by side and a hanger capable of connecting the two levers through the two lever pin shafts, mounting holes are formed in the side edges of the two sides of each lever, a lever pin shaft bushing is arranged in each mounting hole of each lever, a connecting hole is formed in the hanger, a hanger bushing is arranged in each connecting hole, each lever pin shaft can penetrate through the hanger bushing and the lever pin shaft bushing to connect the lever and the hanger and can enable the lever to rotate around the lever pin shaft relatively, a plurality of annular grooves used for mounting elastic damping pieces are formed in each lever pin shaft, the positions of the annular grooves on the lever pin shafts correspond to the positions of the lever pin shaft bushing and the hanger bushing, and the elastic damping pieces are sleeved in the annular grooves and then sequentially mounted in the hanger bushing and the lever pin shaft bushing.
Each lever center all is provided with the protective tube of cover on the lever pin axle, the protective tube is located between two gallows bushes.
The elastic damping piece is made of rubber materials.
The elastic damping member is an O-ring.
And 2-20 ring grooves are formed in each lever pin shaft.
One end of the lever pin shaft is provided with a connector, the other end of the lever pin shaft is provided with a threaded end, and a nut is installed on the threaded end.
The brake pad support is installed at the front end of the lever, a brake pad is installed on the brake pad support, the brake pad support is connected with the lever through a brake pad support pin shaft, and the rear end of the lever is installed on two sides of the brake cylinder.
After the structure is adopted, the lever pin shaft is provided with the ring groove required for mounting the rubber damping part, the ring groove on the lever pin shaft is provided with the rubber damping part, the contact between the lever pin shaft and the lever pin shaft bushing is changed from rigid connection into elastic connection by utilizing the mounted rubber damping part, particularly, the hanging bracket bushing is also arranged in the connecting hole of the hanging bracket, and the rubber damping part and the hanging bracket bushing are mutually matched by utilizing the deformation of the rubber damping part to absorb the impact energy, so that the aims of reducing the impact and the vibration are fulfilled, the replacement rate of the lever pin shaft is reduced, meanwhile, due to the matching structure between the hanging bracket, the lever and the lever pin shaft, the rubber damping part is convenient to replace and maintain, the cost is low, the economical efficiency is good, and in addition, the whole brake clamp.
Drawings
FIG. 1 is a schematic structural diagram of a front view of a damping structure of a braking clamp based on a lever pin shaft according to the invention;
FIG. 2 is a schematic structural diagram of a brake clamp damping structure based on a lever pin shaft in a top view;
FIG. 3 is a schematic view of the lever according to the present invention;
FIG. 4 is a schematic structural view of a lever pin shaft according to the present invention;
fig. 5 is an enlarged schematic view of a portion a of fig. 2.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
The damping and shock-absorbing structure of the brake caliper based on the lever pin shaft of the embodiment comprises two levers 201 arranged side by side and a hanger 206 capable of connecting the two levers 201 through two lever pin shafts 208, the two levers 201 have the same structure, two side edges (the upper and lower edges in the direction of the figure shown in fig. 3) of each lever 201 are respectively provided with a mounting hole, two mounting holes of each lever 201 are respectively provided with a lever pin shaft bushing 203, the hanger 206 is provided with a connecting hole, a hanger bushing 205 is arranged in the connecting hole, one end of the lever pin shaft 208 is provided with a connecting head 207, the other end is provided with a threaded end, each lever pin shaft 208 can respectively and sequentially pass through the hanger bushing 205, the two lever pin shaft bushings 203 and the hanger bushing 205, then a nut 209 is arranged on the threaded end to connect the lever 201 and the hanger 206, the lever 201 can relatively rotate around the lever pin, each lever pin shaft 208 is provided with a plurality of ring grooves 204 for mounting an elastic damping part 202, the rubber damping part only plays the functions of elastic buffering and impact energy absorption, the transmission of force between the lever pin shaft and the lever pin shaft bushing is not influenced, 2-20 ring grooves on each lever pin shaft 208 are set, 4 ring grooves are preferably designed, namely 4 ring grooves which are respectively in one-to-one correspondence with two hanger bushings 205 and two lever pin shaft bushings 203, in other words, the lever pin shaft is provided with 1 ring groove for accommodating the rubber damping part in a single lever pin shaft bushing mounting hole, 1 rubber damping part is mounted, the straightness requirement of the mounting of the lever and the hanger is not influenced, the lever pin shaft can also be provided with 1 ring groove for accommodating the rubber damping part in a single hanger bushing mounting hole, the 1 rubber damping part is mounted, the straightness requirement of the mounting of the lever and the hanger is not influenced, certainly, the number of the ring grooves formed on the lever pin shaft for installing the rubber damping members is not limited to the above embodiment, only the requirement of linearity of installation of the lever and the hanger is guaranteed not to be affected, when the number of the ring grooves is less than 4, the corresponding relation between the two hanger bushings 205 and the two lever pin shaft bushings 203 can be selected, for the convenience of manufacturing and installation, the elastic damping members 202 can be O-rings made of rubber materials, but are not limited to O-rings, the positions of the ring grooves 204 on the lever pin shaft 208 respectively correspond to the positions of the lever pin shaft bushings 203 and the hanger bushings 205, and during specific installation, the elastic damping members 202 are sleeved in the ring grooves 204 and then are sequentially installed in the hanger bushings 205 and the lever pin shaft bushings 203.
Further, a protection tube 211 is disposed at the center of each lever 201 and sleeved on the lever pin shaft 208, and the protection tube 211 is located between the two hanger bushings 205 to protect the lever pin shaft 208.
In addition, for the whole brake caliper device, the brake caliper device further comprises a brake cylinder 1, a brake caliper and a brake pad 3, a brake pad support 212 is installed at the front end of the lever 201, the brake pad 3 is installed on the brake pad support 212, the brake pad support 212 is connected with a brake pad support pin shaft 213 between the lever 201, a main execution component for clamping brake action is realized through a lever component, clamping is reliable, the overall strength is greatly improved, and the operation reliability is improved, the rear end of the lever 201 is installed on two sides of the brake cylinder 1, the lever is a main bearing component of the brake caliper and is a main component for transmitting brake force, and the stability and the reliability of power transmission are further improved.
The principle is as follows: an elastic damping part is added at the connecting position of the lever pin shaft and the lever pin shaft bushing, specifically, a ring groove for containing the rubber damping part is arranged at the contact position of the lever pin shaft and the lever pin shaft bushing, during installation, the rubber damping part is sleeved in the ring groove of the lever pin shaft and then is installed in the lever pin shaft bushing, the contact between the lever pin shaft 208 and the lever pin shaft bushing 203 is changed from rigid connection into elastic connection by using the installed elastic damping part, specifically, the lever pin shaft and the lever pin shaft bushing are sleeved under the non-braking state and are not in direct contact, during braking, the lever can rotate relatively around the lever pin shaft, the braking force transmitted by a brake cylinder is firstly applied to the lever pin shaft bushing at the part, then is applied to the elastic damping part by the lever pin shaft bushing, the impact energy is absorbed by using the deformation of the elastic damping part, and the aim of reducing the impact is achieved, The purpose of reducing vibration, at last wait after the rubber damping piece is complete to warp, lever pin shaft bushing and lever pin axle contact realization transmission of power have avoided the big impact influence that lever pin shaft bushing and lever pin axle rigid connection brought.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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 (7)
1. The utility model provides a braking clamp damping shock-absorbing structure based on lever pin axle which characterized in that: including two levers (201) that set up side by side and gallows (206) that can connect two levers (201) through two lever round pin axle (208), every all be provided with the mounting hole on the both sides side of lever (201), every lever round pin axle bush (203) have all been settled in two mounting holes of lever (201), be provided with the connecting hole on gallows (206), settle gallows bush (205) in the connecting hole, every lever round pin axle (208) can pass gallows bush (205) and lever round pin axle bush (203) respectively and connect lever (201) and gallows (206) and can make lever (201) round lever round pin axle (208) relative rotation, every all be provided with a plurality of annular (204) that are used for installing elastic damping piece (202) on lever round pin axle (208), each position on lever round pin axle (208) of annular (204) place respectively with lever round pin axle bush (203) and gallows bush (205) contact position Correspondingly, after the elastic damping piece (202) is sleeved in the annular groove (204), the elastic damping piece is sequentially installed in the hanger bush (205) and the lever pin shaft bush (203).
2. The lever pin based brake caliper damping shock structure according to claim 1, wherein: each lever (201) center all is provided with protective pipe (211) of cover on lever pin axle (208), protective pipe (211) are located between two gallows bushes (205).
3. The lever pin based brake caliper damping shock structure according to claim 1 or 2, wherein: the elastic damping part (202) is made of rubber materials.
4. The lever pin based brake caliper damping shock structure of claim 3, wherein: the elastic damping member (202) is an O-ring.
5. The lever pin based damping and shock absorbing structure for brake calipers according to claim 1, 2 or 4, wherein: 2-20 annular grooves are formed in each lever pin shaft (208).
6. The lever-pin-based damping and shock-absorbing structure for brake calipers according to claim 5, wherein: one end of the lever pin shaft (208) is provided with a connector (207), the other end of the lever pin shaft is provided with a threaded end, and a nut (209) is installed on the threaded end.
7. The lever pin based brake caliper damping shock structure of claim 6, wherein: brake pad support (212) is installed to the front end of lever (201), install brake pad (3) on brake pad support (212), brake pad support round pin axle (213) are connected between brake pad support (212) and lever (201), the both sides at brake cylinder (1) are installed to the rear end of lever (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921051600.5U CN210510030U (en) | 2019-07-05 | 2019-07-05 | Brake clamp damping structure based on lever pin shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921051600.5U CN210510030U (en) | 2019-07-05 | 2019-07-05 | Brake clamp damping structure based on lever pin shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210510030U true CN210510030U (en) | 2020-05-12 |
Family
ID=70581886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921051600.5U Active CN210510030U (en) | 2019-07-05 | 2019-07-05 | Brake clamp damping structure based on lever pin shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210510030U (en) |
-
2019
- 2019-07-05 CN CN201921051600.5U patent/CN210510030U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240428 Address after: No. 24 Xinfeng Village, Xinfeng Town, Dantu District, Zhenjiang City, Jiangsu Province, 212000 Patentee after: Guo Haoxiang Country or region after: China Address before: 212003 No. 61, Xuefu Road, Zhenjiang, Jiangsu Patentee before: ZHENJIANG College Country or region before: China |