CN211574106U - Double push rod pressure arm - Google Patents
Double push rod pressure arm Download PDFInfo
- Publication number
- CN211574106U CN211574106U CN201921544236.6U CN201921544236U CN211574106U CN 211574106 U CN211574106 U CN 211574106U CN 201921544236 U CN201921544236 U CN 201921544236U CN 211574106 U CN211574106 U CN 211574106U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- cavity
- pressure arm
- roller
- hole
- 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 abstract description 11
- 239000005060 rubber Substances 0.000 claims abstract description 11
- 239000010687 lubricating oil Substances 0.000 claims abstract description 10
- 239000004677 Nylon Substances 0.000 claims description 5
- 229920001778 nylon Polymers 0.000 claims description 5
- 229920000728 polyester Polymers 0.000 claims description 5
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 4
- 229920004933 Terylene® Polymers 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000012634 fragment Substances 0.000 abstract description 3
- 239000008187 granular material Substances 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920004934 Dacron® Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Rollers For Roller Conveyors For Transfer (AREA)
Abstract
The utility model relates to a double-push-rod pressure arm, including load portion and rotating part and the ball socket that is located load portion both ends, the rotating part includes the rotating surface, is equipped with rotatable roller on the rotating surface, and the roller center is equipped with the through-hole of cavity and intercommunication cavity, and the cylinder has been put to the stopper in the through-hole, but cylinder and through-hole relative slip, the one end that the cavity was arranged in to the cylinder is fixed with the shell fragment, and the other end sets up for outstanding spherical surface structure, lubricating oil is equipped with in the cavity. This double-push-rod pressure arm structural design is reasonable simple, through be equipped with the roller on the rotating surface, and is equipped with lubricating oil in the roller, guarantees the lubricated effect of relative rotation in-process, is equipped with two bar-shaped sheet rubbers simultaneously and avoids debris granule to fall to influence relative rotation between them.
Description
Technical Field
The utility model belongs to the technical field of the spare part technique of atmospheric pressure disk brake for the car and specifically relates to a double-push-rod pressure arm.
Background
In the air disc brake, the rotating shaft assembly completes the braking function of the brake, and the pressure arm is a key part of the rotating shaft assembly and acts as a force-increasing lever. The working principle is as follows: when the brake chamber push rod vertically acts on the pressure arm ball socket, the pressure arm can rotate around the center of the fulcrum cylinder of the rotating shaft mechanism, and the pressure arm has a section of displacement in the braking direction while rotating. The pressure arm is located in a fixed ratio to the displacement in the direction of the ball and socket, i.e. a lever ratio or a force ratio, which is usually constant. The pressure arm transmits the displacement in the braking direction to the base, then transmits the friction disc to by the base respectively, eliminates the clearance between friction disc and the brake disc, and outer friction disc also laminates with the brake disc to the inner and outer friction disc embracing post brake disc realizes braking effect with this. The pressure arm outputs braking displacement through rotation, the rotating surface is required to be high in smoothness and wear-resistant, and the rotating surface of the existing pressure arm is damaged in smoothness because sundry particles fall on the rotating surface, so that the flexibility of relative rotation between the rotating surface and the fulcrum cylinder is influenced.
SUMMERY OF THE UTILITY MODEL
To the not enough in the background art, the utility model provides a double-pushing-rod pressure arm to overcome above defect.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a two push rod pressure arms, includes load portion and rotating part and the ball socket that is located load portion both ends, the rotating part includes the rotating surface, is equipped with rotatable roller on the rotating surface, and the roller center is equipped with the through-hole of cavity and intercommunication cavity, and the through-hole is built by contract and is put the cylinder, but cylinder and through-hole relative slip, the one end that the cavity was arranged in to the cylinder is fixed with the shell fragment, and the other end sets up for outstanding spherical structure, lubricating oil is equipped with in the cavity.
Two ends of the rotating surface are provided with stop blocks, two ends of the roller are provided with convex columns, and the opposite side walls of the two stop blocks are provided with grooves for placing the convex columns.
One of the stop blocks is detachable.
The cylinder material is nylon or polyester terylene.
Be equipped with the bar sheet rubber on the rotating part, the sheet rubber includes two, is located the both sides of rotation face respectively.
By adopting the technical scheme, the problem that the relative transmission flexibility is poor between the rotating surface and the fulcrum cylinder of the existing pressure arm operating for a long time is effectively improved, the double-push-rod pressure arm is reasonable and simple in structural design, the roller is arranged on the rotating surface, lubricating oil is arranged in the roller, the lubricating effect in the relative rotation process is ensured, and meanwhile, the two strip-shaped rubber sheets are arranged to avoid the falling of sundry particles to influence the relative rotation of the sundry particles and the fulcrum cylinder.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a schematic structural diagram of the present invention.
The force bearing part 1 in the figure; a ball socket 2; a rotating section 3; a rotating surface 31; a fulcrum cylinder 4; a roller 5; a chamber 51; a through hole 52; a boss 53; a column 6; a spring plate 7; a strip-shaped rubber sheet 8.
Detailed Description
Referring to fig. 1 in conjunction with fig. 2 and 3, the present invention: the utility model provides a two push rod pressure arm, includes bearing portion 1 and rotating part 3 and ball socket 2 that are located 1 both ends of bearing portion, rotating part 3 includes swivel face 31, swivel face 31 rotates with fulcrum cylinder 4 to be connected, is equipped with rotatable roller 5 on the swivel face 31, and roller 5 center is equipped with cavity 51 and communicates cavity 51's through-hole 52, and the cylinder 6 has been set up to the stopper in the through-hole 52, but cylinder 6 and through-hole 52 relative slip, cylinder 6 arrange the one end in cavity 51 in and be fixed with shell fragment 7, the other end sets up for protruding spherical structure, lubricating oil is equipped with in the cavity 51.
Two ends of the rotating surface 31 are provided with stoppers 32, two ends of the roller 5 are provided with protruding columns 53, and the opposite side walls of the two stoppers 32 are provided with grooves (not shown in the figure) for placing the protruding columns 53.
One of the stoppers 32 is detachable. As shown in fig. 1-2, during installation, the rollers 5 are arranged in parallel as shown in fig. 1, and the protruding column 53 at the end portion thereof is inserted into the groove of one of the stoppers 32, then another detachable stopper 32 is also placed at the position shown in fig. 1, and the protruding column 53 at the other end of the roller 5 is also inserted into the groove of the detachable stopper 32, and finally the detachable stopper 32 is fixed on the rotating portion 3 by welding. The mounted roller 5 is rotatable.
The cylinder 6 is made of nylon or polyester terylene. Nylon or polyester is a refill for manufacturing the whiteboard marker, and when the refill contacts the fulcrum cylinder 4, lubricating oil in the cavity 51 is transferred to the surface of the fulcrum cylinder 4, so that the lubricating effect between the fulcrum cylinder 4 and each roller 5 is ensured. When the roller 5 is pressed by force, the elastic sheet 7 is deformed, and the roller 5 is always in contact with the fulcrum cylinder 4 even if the force of the elastic sheet 7 is pressed by the fulcrum cylinder 4.
Be equipped with strip sheet rubber 8 on the rotating part 3, sheet rubber 8 includes two, is located the both sides of rotating surface 31 respectively.
As shown in fig. 3, when the rotating portion 3 and the fulcrum cylinder 4 rotate relatively, at first, the two strip-shaped rubber sheets 8 clean up the impurities possibly existing on the surface of the fulcrum cylinder 4, and the impurities are prevented from entering the surface of the fulcrum cylinder 4 opposite to the rotating surface 31, so that the flexibility of rotation is influenced, and the transmission of the influence is influenced.
Because lubricating oil has certain concentration in this scheme, and nylon or polyester dacron are relatively dyed the material, even if cylinder 6 is extruded by fulcrum cylinder 4 and is stretched out and drawn back relatively in through-hole 52, nevertheless do not break away from through-hole 52 all the time, so lubricating oil is from the volume of flowing out between cylinder 6 and through-hole 52 not counting, can regard as not flowing out between the two.
The utility model discloses the effectual poor problem of relative transmission flexibility between its rotatory face of current pressure arm long-time operation and the fulcrum cylinder of having improved, this double-pushing-rod pressure arm structural design is reasonable simple, through be equipped with roller 5 on rotatory face 31, and is equipped with lubricating oil in the roller 5, guarantees the lubricated effect of relative rotation in-process, is equipped with two bar sheet rubbers 8 simultaneously and avoids debris granule to fall to influence relative rotation between them.
The skilled person should understand that: although the present invention has been described in terms of the above embodiments, the inventive concepts are not limited to the embodiments, and any modifications that utilize the inventive concepts are intended to be included within the scope of the appended claims.
Claims (5)
1. The utility model provides a two push rod pressure arms, includes bearing portion (1) and rotating part (3) and ball socket (2) that are located bearing portion (1) both ends, its characterized in that: the rotating part (3) comprises a rotating surface (31), a rotatable roller (5) is arranged on the rotating surface (31), a cavity (51) and a through hole (52) communicated with the cavity (51) are arranged at the center of the roller (5), a cylinder (6) is arranged in the through hole (52) in a plugging manner, the cylinder (6) and the through hole (52) can slide relatively, an elastic sheet (7) is fixed at one end of the cylinder (6) in the cavity (51), the other end of the cylinder is arranged in a protruding spherical structure, and lubricating oil is filled in the cavity (51).
2. The dual pushrod pressure arm of claim 1 wherein: two ends of the rotating surface (31) are provided with stop blocks (32), two ends of the roller (5) are provided with convex columns (53), and the opposite side walls of the two stop blocks (32) are provided with grooves for placing the convex columns (53).
3. The dual pushrod pressure arm of claim 1 wherein: one stop block (32) is detachable.
4. The dual pushrod pressure arm of claim 1 wherein: the cylinder (6) is made of nylon or polyester terylene.
5. The dual pushrod pressure arm of claim 1 wherein: be equipped with bar sheet rubber (8) on rotating part (3), sheet rubber (8) include two, are located the both sides of rotating surface (31) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921544236.6U CN211574106U (en) | 2019-09-17 | 2019-09-17 | Double push rod pressure arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921544236.6U CN211574106U (en) | 2019-09-17 | 2019-09-17 | Double push rod pressure arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211574106U true CN211574106U (en) | 2020-09-25 |
Family
ID=72522649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921544236.6U Expired - Fee Related CN211574106U (en) | 2019-09-17 | 2019-09-17 | Double push rod pressure arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211574106U (en) |
-
2019
- 2019-09-17 CN CN201921544236.6U patent/CN211574106U/en not_active Expired - Fee Related
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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: 20200925 |