CN204152920U - A kind of cotter pin - Google Patents
A kind of cotter pin Download PDFInfo
- Publication number
- CN204152920U CN204152920U CN201420502835.2U CN201420502835U CN204152920U CN 204152920 U CN204152920 U CN 204152920U CN 201420502835 U CN201420502835 U CN 201420502835U CN 204152920 U CN204152920 U CN 204152920U
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- CN
- China
- Prior art keywords
- pin
- cotter pin
- straight line
- bearing
- bearing pin
- 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
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- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
The utility model relates to a kind of cotter pin, the attachment portion that this cotter pin comprises straight line supporting leg, leg support of curve and straight line supporting leg and leg support of curve linked together.Leg support of curve comprises the ramp extension that the matching part be connected with attachment portion and the direction tilted along the bearing of trend relative to straight line supporting leg from matching part extend.The gib head portion extended along the direction that the bearing of trend with ramp extension is substantially contrary from ramp extension is also comprised according to the leg support of curve of cotter pin of the present utility model.Can be securely fixed in the pin-and-hole of bearing pin very much by gib head portion according to cotter pin of the present utility model, thus can guarantee that bearing pin is arranged on equipment securely or guarantees that the parts be arranged on bearing pin can be arranged on bearing pin relatively stablely.This will make the running of equipment more safe and reliable, and makes the operation of equipment more stable and efficient.
Description
Technical field
The utility model relates to a kind of fixing device for being fixed the parts be arranged on axle or axle itself, relates more specifically to a kind of gib head cotter pin.
Background technique
Below background of related of the present utility model is described, but these explanations might not form prior art of the present utility model.
In current engineer applied, in order to the bearing pin on solid mechanical equipment or the mechanical part that is arranged on bearing pin, the cotter pin of usual use R shape cotter pin or other shapes, usually the cotter pin of R shape is inserted in the pin-and-hole of bearing pin, be fixed on bearing pin bearing pin is remained on equipment or by the parts of equipment.In the normal operation of machinery, when bearing pin is in vibrations or high speed rotating, very easily there is coming off of cotter pin, coming off of cotter pin will make bearing pin fixing generation on equipment loosen, thus bearing pin is come off from equipment, even make the parts fixing by bearing pin of equipment come off from equipment, will the normal running of equipment be affected like this.
In addition, when using cotter pin to be fixed bearing pin, usually needing use instrument to break cotter pin into two with one's hands several angle, or one of them supporting leg of cotter pin is bent, thus making cotter pin to be arranged in the pin-and-hole of bearing pin relatively stablely.Obviously, this process to cotter pin is wasted time and energy in practical operation, and its working efficiency is very low.Usually cotter pin as above or R shape pin is adopted to be fixed bearing pin in the prior art.The cotter pin with two straight line type supporting legs the most frequently used in prior art anti-loosing effect is in use better, but its assembly and disassembly all need use instrument to carry out, and cause working efficiency to reduce thus.Although R shape pin has advantage easy to assembly, bearing pin be in run up or shake large time, easily obscission occurs, that is, run up in process at equipment, it is very large that R shape sells the probability come off.
Therefore, need in prior art a kind of can simplify cotter pin when significantly reducing the probability come off of cotter pin assembly program and improve the cotter pin for providing fixation of the packaging efficiency of cotter pin.
Model utility content
The utility model provides a kind of cotter pin, the attachment portion that this cotter pin comprises straight line supporting leg, leg support of curve and straight line supporting leg and leg support of curve linked together.Leg support of curve comprises the ramp extension that the matching part be connected with attachment portion and the direction tilted along the bearing of trend relative to straight line supporting leg from matching part extend.The gib head portion extended along the direction that the bearing of trend with ramp extension is substantially contrary from ramp extension is also comprised according to the leg support of curve of cotter pin of the present utility model.
Can be securely fixed in the pin-and-hole of bearing pin very much by gib head portion according to cotter pin of the present utility model, thus can guarantee that bearing pin is arranged on equipment securely or guarantees that the parts be arranged on bearing pin can be arranged on bearing pin relatively stablely.This will make the running of equipment more safe and reliable, and makes the operation of equipment more stable and efficient.
According to a preferred embodiment of cotter pin of the present utility model, gib head portion comprises the first kink extended towards the side of cotter pin from the end of ramp extension and the second kink extended along the direction that the bearing of trend with ramp extension is roughly contrary from the end of the first kink.
In another preferred embodiment according to cotter pin of the present utility model, gib head portion extends beyond the axis of straight line supporting leg.Like this, bearing pin can be clamped between itself and matching part by gib head portion, stops coming off of cotter pin thus.
According to another preferred embodiment of cotter pin of the present utility model, attachment portion comprise the axis being approximately perpendicular to straight line supporting leg straight part, straight part be connected to the First Transition portion of straight line supporting leg and straight part be connected to the second transition part of matching part.The size of cotter pin can be done very little by this setup, thus under making cotter pin can be used to have the environment of little installing space, is conducive to the using scope of enlarged openings pin thus.
In the also preferred embodiment according to cotter pin of the present utility model, the attachment portion of cotter pin is arranged to have the shape roughly the same with matching part.Advantageously, attachment portion has semicircular arc shape.The attachment portion with matching part with roughly the same shape can hold bearing pin as matching part, thus same cotter pin can be made to be fixed two bearing pins simultaneously, thereby saving material, reduces the cost of production of equipment.
Accompanying drawing explanation
By the embodiment part provided referring to accompanying drawing, feature and advantage of the present utility model will become easier to understand, in the accompanying drawings:
Fig. 1 a is the plan view of the cotter pin illustrated according to prior art;
Fig. 1 b is the broken section plan view that the bearing pin coordinated with cotter pin is shown;
Fig. 1 c is the sectional view intercepted along the line C-C in Fig. 1 b;
Fig. 1 d is the partial sectional view of the bearing pin be combined together according to prior art and cotter pin;
Fig. 2 a illustrates the plan view according to cotter pin of the present utility model;
Fig. 2 b illustrates the rear view according to cotter pin of the present utility model;
Fig. 2 c illustrates the left view according to cotter pin of the present utility model;
Fig. 3 a is according to the stereogram of cotter pin of the present utility model before assembling with bearing pin;
Fig. 3 b is the stereogram be assembled together according to cotter pin of the present utility model and bearing pin;
Fig. 4 a is the plan view of the cotter pin be assembled together shown in Fig. 3 b and bearing pin;
Fig. 4 b is the right elevation of the cotter pin shown in Fig. 4 a and bearing pin;
Fig. 5 a is the plan view of another embodiment according to cotter pin of the present utility model;
Fig. 5 b is the view from another perspective of the cotter pin shown in Fig. 5 a;
Fig. 6 a is the plan view of another embodiment according to cotter pin of the present utility model;
Fig. 6 b is the view from another perspective of the cotter pin shown in Fig. 6 a.
Embodiment
With reference to the accompanying drawings illustrative embodiments of the present utility model is described in detail.Be only for demonstration object to the description of illustrative embodiments, and be never the restriction to the utility model and application or usage.
As shown in Figure 1a, the plan view of the R shape cotter pin 1 according to prior art is shown, Fig. 1 b illustrates the partial sectional view of the bearing pin 2 coordinated with R shape cotter pin 1, the end of bearing pin 2 is provided with pin-and-hole 3, the straight line supporting leg of R shape cotter pin 1 can pass from the pin-and-hole 3 of bearing pin 2, thus is combined together with bearing pin 2.Fig. 1 c illustrate along perpendicular to bearing pin 2 center line and comprise the sectional drawing of the bearing pin 2 of the planar interception of the center line of pin-and-hole 3.From another aspect, Fig. 1 c is the sectional view intercepted along the line C-C in Fig. 1 b.Fig. 1 d illustrates the partial sectional view of the bearing pin 2 be combined together of the prior art and cotter pin 1.
As shown in Figure 1 d, according to the cotter pin 1 of prior art when coordinating with bearing pin 2, the straight line supporting leg of cotter pin 1 passes the pin-and-hole 3 of bearing pin 2, the matching part of the leg support of curve of cotter pin 1 is roughly mated with the exterior contour of bearing pin 2, thus makes the leg support of curve of cotter pin 1 substantially surround the half of the exterior contour of bearing pin 2.In order to make cotter pin 1 when being assembled on bearing pin 2 relatively laborsaving and be convenient to assembling, be formed with the ramp extension extended along the direction gradually away from the straight line supporting leg of bearing pin 2 at the end of the leg support of curve of cotter pin 1.Owing to being level and smooth transition portion between the part of the encirclement bearing pin 2 of the leg support of curve of bearing pin 2 and ramp extension, therefore level and smooth transition portion does not have the function or effect that position or limit cotter pin 1.That is, in the operating process of equipment adopting this bearing pin 2, when bearing pin 2 High Rotation Speed or when bearing pin 2 self high speed time rotational, cotter pin 1 is likely deviate from from the pin-and-hole 3 of bearing pin 2.Like this, bearing pin 2 can be caused to depart from from adopting the equipment of this bearing pin, or likely cause the parts be arranged on bearing pin 2 to depart from equipment, this will cause device fails, thus can not run well, also possible production development security incident time serious.
In order to avoid the generation of above-mentioned production accident, the utility model proposes a kind of cotter pin can avoiding coming off from bearing pin.As shown in Figure 2 a, the plan view according to cotter pin 10 of the present utility model is shown.According to the attachment portion 16 that cotter pin 10 of the present utility model comprises straight line supporting leg 12, leg support of curve 14 and straight line supporting leg 12 and leg support of curve 14 linked together.Advantageously, attachment portion 16 is divided for elastic joint part, make, cotter pin 10 being inserted in the process in the pin-and-hole of bearing pin, straight line supporting leg 12 can be made can be flexibly separated each other with leg support of curve 14, thus cotter pin 10 is more prone to the assembling of bearing pin.
As shown in Fig. 2 a, 2b and 2c, comprise according to the leg support of curve 14 of cotter pin 10 of the present utility model the matching part 142 that links together with attachment portion 16 and to link together with matching part 142 and from matching part 142 along the ramp extension 144 that the direction gradually away from straight line supporting leg 12 extends, as Fig. 2 b can be clear that shape and the state of ramp extension 144.As can be seen from Fig. 2 b, the end of the both sides of the matching part 142 of leg support of curve 14 all contacts substantially with straight line supporting leg 12, and is formed as semicircular in shape roughly, thus substantially can surround the exterior contour of bearing pin when coordinating with bearing pin.
According in the preferred embodiment of cotter pin 10 of the present utility model, the leg support of curve 14 of cotter pin 10 also comprises gib head portion 146, advantageously, gib head portion 146 extends along the direction that the bearing of trend with ramp extension 144 is roughly contrary, can be locked on adopting the bearing pin of this cotter pin 10 between the gib head portion 146 of cotter pin 10 and matching part 142 thus, thus can prevent cotter pin 10 from coming off from bearing pin.According in the preferred embodiment of cotter pin 10 of the present utility model, gib head portion 146 comprises the first kink 148 extended towards the side of cotter pin 10 from the end of ramp extension 144 and the second kink 150 extended along the direction that the bearing of trend with ramp extension 144 is roughly contrary from the end of the first kink 148, as shown in Figure 2 c.Advantageously, gib head portion 146 extends across the axis of straight line supporting leg 12.In the embodiment shown in Fig. 2 a-2c, the second kink 150 extends beyond the axis of straight line supporting leg 12, and advantageously, the second kink 150 extends beyond the lower side contour edge of straight line supporting leg 12.Make when in pin-and-hole cotter pin 10 being inserted bearing pin thus, bearing pin can clamp by ramp extension 144 and the matching part 142 of cotter pin 10, thus prevents cotter pin 10 from coming off from bearing pin.
As shown in Figure 3 a, the rigging position relation of cotter pin 10 and bearing pin 40 is shown.When in the pin-and-hole 42 needing cotter pin 10 to be assembled to bearing pin 40, first the pin-and-hole 42 straight line supporting leg 12 of cotter pin 10 being aimed at bearing pin 40 is needed, then on the attachment portion 16 of cotter pin 10, apply pressure, force the straight line supporting leg 12 of cotter pin 10 to insert in the pin-and-hole 42 of bearing pin 40.When the matching part 142 of the leg support of curve 14 of cotter pin 10 matches on the periphery of bearing pin 40, the end of second kink 150 in the gib head portion 146 of leg support of curve 14 just strides across the peripheral part of bearing pin 40, thus is locked between matching part 142 and the second kink 150 by bearing pin 40.As shown in Figure 3 b, bearing pin 40 and the cotter pin 10 of the rigging position be in are shown.Can be securely fixed in the pin-and-hole 42 of bearing pin 40 according to cotter pin 10 of the present utility model, thus avoid cotter pin 10 from coming off bearing pin 40, and substantially reduce the probability that bearing pin 40 comes off from equipment thus.
As shown in figures 4 a and 4b, plan view and the right elevation of the bearing pin 40 and cotter pin 10 be assembled together are shown.It should be noted that at this, time in the pin-and-hole 42 straight line supporting leg 12 of cotter pin 10 being inserted into bearing pin 40, the end of second kink 150 in the gib head portion 146 of the leg support of curve 14 of cotter pin 10 extends beyond the axis of straight line supporting leg 12, thus can from the opposite side restriction bearing pin 40 of bearing pin 40 relative to the matching part 142 of the leg support of curve 14 of cotter pin 10, thus make cotter pin 10 respectively from the sandwich bearing pin 40 of bearing pin 40, also just make cotter pin 10 be arranged on more securely on bearing pin 40.
Fig. 5 a and Fig. 5 b illustrates another preferred embodiment according to cotter pin of the present utility model, according to the attachment portion 56 that the cotter pin 50 of this embodiment comprises straight line supporting leg 52, leg support of curve 54 and straight line supporting leg 52 and leg support of curve 54 linked together.Leg support of curve 54 comprises the matching part 542 that links together with attachment portion 56 and to link together with matching part 542 and from matching part 542 along the ramp extension 544 that the direction gradually away from straight line supporting leg 52 extends.The leg support of curve 54 of cotter pin 50 also comprises gib head portion 546.Advantageously, gib head portion 546 extends along the direction that the bearing of trend with ramp extension 544 is roughly contrary, can be locked on adopting the bearing pin of this cotter pin 50 between the gib head portion 546 of cotter pin 50 and matching part 542 thus, thus can prevent cotter pin 50 from coming off from bearing pin.
Embodiment according to Fig. 5 a and 5b is with the difference in front described embodiment, and the attachment portion 56 of the cotter pin 50 shown in Fig. 5 a and Fig. 5 b has less longitudinal size relative to the attachment portion 16 of the cotter pin 10 shown in Fig. 2 a-2c.That is, between the end of the end of the side in attachment portion 56 of cotter pin 50 and the straight line supporting leg 52 of cotter pin 50, there is less distance.There is according to the attachment portion 56 of the cotter pin 50 of another embodiment of the present utility model the straight part 562 of the roughly straight line of the axis being approximately perpendicular to straight line supporting leg 52, straight part 562 is connected to the First Transition portion 564 of straight line supporting leg 52 and straight part 562 is connected to the second transition part 566 of matching part 542.First Transition portion 564 and the second transition part 566 can be arranged to have less size, thus make attachment portion 56 have less size.Cotter pin 50 can be made like this to have less installation dimension, may be used for having the Environmental Conditions of less installing space according to the cotter pin 50 of accompanying drawing 5a and 5b of the present utility model under.
Fig. 6 a and Fig. 6 b illustrates another preferred embodiment according to cotter pin of the present utility model, according to the attachment portion 66 that the cotter pin 60 of this embodiment comprises straight line supporting leg 62, leg support of curve 64 and straight line supporting leg 62 and leg support of curve 64 linked together.Leg support of curve 64 comprises the matching part 642 that links together with attachment portion 66 and to link together with matching part 642 and from matching part 642 along the ramp extension 644 that the direction gradually away from straight line supporting leg 62 extends.The leg support of curve 64 of cotter pin 60 also comprises gib head portion 646.Advantageously, gib head portion 646 extends along the direction that the bearing of trend with ramp extension 644 is roughly contrary, can be locked on adopting the bearing pin of this cotter pin 60 between the gib head portion 646 of cotter pin 60 and matching part 642 thus, thus can prevent cotter pin 60 from coming off from bearing pin.
Be according to another embodiment of the present utility model and the difference in front described embodiment, the attachment portion 66 of the cotter pin 60 according to Fig. 6 a with Fig. 6 b is arranged to have the shape roughly the same with matching part 64.Advantageously, roughly semicircular arcuate shape is arranged in attachment portion 66, and can hold the half portion of bearing pin between the attachment portion 66 and straight line supporting leg 62 of this arcuate shape.That is, can be fixed two bearing pins according to the cotter pin 60 of another preferred embodiment of the present utility model simultaneously.The straight line supporting leg 62 of cotter pin 60 can be made first to pass the pin-and-hole of the first bearing pin matched with interior shape and the size of attachment portion 66, and the first bearing pin is arranged between straight line supporting leg 62 and attachment portion 66.After the pin-and-hole making the straight line supporting leg 62 of cotter pin 60 through the first bearing pin, make the straight line supporting leg 62 of cotter pin 60 then through the pin-and-hole of the second bearing pin, and make the second bearing pin be arranged between straight line supporting leg 62 and matching part 642, meanwhile, the end in the gib head portion 646 of the leg support of curve 64 of cotter pin 60 is resisted against on the outer wall of the second bearing pin, thus clamps the second bearing pin by gib head portion 646 and matching part 642.Like this, cotter pin 60 just can be arranged on the first bearing pin and the second bearing pin securely, and can not come off from the first bearing pin and the second bearing pin, is conducive to normal operation and the operation of the equipment adopting this bearing pin and cotter pin.
Can be securely fixed in the pin-and-hole of bearing pin very much by gib head portion according to cotter pin of the present utility model, thus can guarantee that bearing pin is arranged on equipment securely or guarantees that the parts be arranged on bearing pin can be arranged on bearing pin relatively stablely.This will make the running of equipment more safe and reliable, and makes the operation of equipment more stable and efficient.
Although be described the utility model with reference to illustrative embodiments, but be to be understood that, the utility model is not limited in literary composition the embodiment described in detail and illustrate, when not departing from claims limited range, those skilled in the art can make various change to described illustrative embodiments.
Claims (6)
1. a cotter pin (10, 50, 60), comprise straight line supporting leg (12, 52, 62), leg support of curve (14, 54, 64) and by described straight line supporting leg (12, 52, 62) and described leg support of curve (14, 54, 64) attachment portion (16 linked together, 56, 66), described leg support of curve (14, 54, 64) comprise and described attachment portion (16, 56, 66) matching part (142 connected, 542, 642) with from described matching part (142, 542, 642) along relative to described straight line supporting leg (12, 52, 62) ramp extension (144 that the direction that bearing of trend tilts extends, 544, 644),
It is characterized in that, described leg support of curve (14,54,64) also comprises the gib head portion (146,546,646) extended along the direction substantially contrary with the bearing of trend of described ramp extension (144,544,644) from described ramp extension (144,544,644).
2. cotter pin according to claim 1 (10), wherein, described gib head portion (146) comprises the first kink (148) extended towards the side of described cotter pin (10) from the end of described ramp extension (144) and the second kink (150) extended along the direction roughly contrary with the bearing of trend of described ramp extension (144) from the end of described first kink (148).
3. cotter pin according to claim 1 and 2 (10), wherein, described gib head portion (146,546,646) extend beyond the axis of described straight line supporting leg (12,52,62).
4. cotter pin according to claim 1 (50), wherein, described attachment portion (56) comprise the axis being approximately perpendicular to described straight line supporting leg (52) straight part (562), described straight part (562) be connected to the First Transition portion (564) of described straight line supporting leg (52) and described straight part (562) be connected to second transition part (566) of described matching part (542).
5. cotter pin according to claim 1 (60), wherein, the attachment portion (66) of described cotter pin (60) is arranged to have the shape roughly the same with described matching part (642).
6. cotter pin according to claim 5 (60), wherein, described attachment portion (66) have semicircular arc shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420502835.2U CN204152920U (en) | 2014-09-02 | 2014-09-02 | A kind of cotter pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420502835.2U CN204152920U (en) | 2014-09-02 | 2014-09-02 | A kind of cotter pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204152920U true CN204152920U (en) | 2015-02-11 |
Family
ID=52511040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420502835.2U Expired - Fee Related CN204152920U (en) | 2014-09-02 | 2014-09-02 | A kind of cotter pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204152920U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972065A (en) * | 2016-07-05 | 2016-09-28 | 徐工集团工程机械股份有限公司 | Novel pin shaft fixing bolt |
| CN109526834A (en) * | 2019-01-21 | 2019-03-29 | 上海海洋大学 | A kind of aquaculture movable type device for feeding fish bait balanced type material shaking device |
-
2014
- 2014-09-02 CN CN201420502835.2U patent/CN204152920U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972065A (en) * | 2016-07-05 | 2016-09-28 | 徐工集团工程机械股份有限公司 | Novel pin shaft fixing bolt |
| CN109526834A (en) * | 2019-01-21 | 2019-03-29 | 上海海洋大学 | A kind of aquaculture movable type device for feeding fish bait balanced type material shaking device |
| CN109526834B (en) * | 2019-01-21 | 2023-11-21 | 上海海洋大学 | Balanced type material shaking device of movable bait casting machine for aquaculture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 241080 Anhui province Wuhu City mountain Economic Development Zone E Xi Road No. 16 Patentee after: ZOOMLION HEAVY MACHINERY CO., LTD. Address before: 241080 Anhui province Wuhu City mountain Economic Development Zone E Xi Road No. 16 Patentee before: Chery Heavy Industry Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20190902 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |