CN204327649U - Oil hydraulic cylinder bearing pin - Google Patents
Oil hydraulic cylinder bearing pin Download PDFInfo
- Publication number
- CN204327649U CN204327649U CN201420704343.1U CN201420704343U CN204327649U CN 204327649 U CN204327649 U CN 204327649U CN 201420704343 U CN201420704343 U CN 201420704343U CN 204327649 U CN204327649 U CN 204327649U
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- shaft part
- pin body
- bearing
- hydraulic cylinder
- limiting board
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Abstract
The utility model discloses a kind of oil hydraulic cylinder bearing pin, relate to oil hydraulic cylinder manufacturing technology field, comprise the pin body of large footpath shaft part and the path shaft part being provided with limiting board and be attached at successively on this limiting board, pin body is by being fixed on the first bearing and the second bearing through the first bearing hole, piston rod head hole and the second bearing hole by hydraulic cylinder piston rod successively; Pin body is set with the first axle sleeve matched with the second bearing hole on its path shaft part, between the large footpath shaft part and path shaft part of pin body, be provided with central diameter shaft part, pin body is matched with piston rod head hole by the joint shaft bearing that wherein footpath shaft part is set with; Have oil groove in the central diameter shaft part outer rim of pin body, oil groove is communicated with the oil nozzle on the limiting board being located at pin body by oilhole.Compared with prior art, the utility model avoids the pin body easy phenomenon grinding boss at its path shaft part in use for some time; Dismantle during maintenance, pin body be installed conveniently.
Description
Technical field
The utility model relates to oil hydraulic cylinder manufacturing technology field, especially a kind of oil hydraulic cylinder bearing pin being convenient to install, dismantle.
Background technique
The fragmentation of vertical mill collection, drying, grinding, classification are transported in one, bulk, granular and powder raw material can be worn into required granular material, be widely used in the industries such as cement, electric power, metallurgy, chemical industry, nonmetallic ore.The grinding roller of vertical mill is connected with oil hydraulic cylinder by pressurizing frame, controlled by the size of grinding roller pressure in oil hydraulic cylinder opposition mill running, the piston rod head of oil hydraulic cylinder is contained between two bearings of pressurizing frame by bearing pin, bearing pin plays an important role in connection and transmitted load.Often use oil hydraulic cylinder bearing pin as shown in Figure 1 at present, this oil hydraulic cylinder bearing pin comprises the pin body 22 of large footpath shaft part and the path shaft part being provided with limiting board and be attached at successively on this limiting board, and pin body 22 is by being fixed on the first bearing 23 and the second bearing 26 through the first bearing hole, piston rod head hole and the second bearing hole successively by hydraulic cylinder piston rod 24; The large footpath shaft part of pin body 22 matches with the first bearing hole, and pin body 22 is set with the joint shaft bearing 25 matched with piston rod head hole and the axle sleeve 27 matched with the second bearing hole successively on its path shaft part; The limiting board of pin body 22 is fixed on the first bearing 23 by bolt 21, passes the second bearing 26 place backing plate 28 and locking nut 29 are housed in pin body 22.There is following deficiency in this oil hydraulic cylinder bearing pin: acting frequently and the vibration of vertical mill grinding roller 1, due to oil hydraulic cylinder in process of production, the path shaft part of pin body and the fitting surface of joint shaft bearing are are easily worn and torn, pin body is made to grind boss in the joint A of joint shaft bearing and axle sleeve, cause oil hydraulic cylinder dismounting hinge pin difficulty, the mode of gas flame cuttiug can only be adopted to remove, thus damage the parts such as piston rod, joint shaft bearing, axle sleeve, and need just to complete changeing of oil hydraulic cylinder bearing pin 4 ~ 5 Working days; 2, by the impact of grinding roller vibration, the bolt connecting limiting board and the first bearing easily loosens and even ruptures, the limiting board of pin body and the surface of contact of the first bearing rub and increase, because pin body material is higher than the first support material intensity, make the bore area of the first bearing seriously impaired, and the first bearing and pressurizing frame are overall structure, so that change pressurizing frame, maintenance expenses is high, and cost of production is high.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of oil hydraulic cylinder bearing pin, and to solve, existing pin body is easy in use for some time grinds at its path shaft part the problem that boss makes it to dismantle difficulty.
In order to solve the problem, the technical solution adopted in the utility model is: this oil hydraulic cylinder bearing pin, comprise the pin body of large footpath shaft part and the path shaft part being provided with limiting board and be attached at successively on this limiting board, described pin body is by being fixed on the first bearing and the second bearing through the first bearing hole, piston rod head hole and the second bearing hole by hydraulic cylinder piston rod successively; Described pin body is set with the first axle sleeve matched with described second bearing hole on its path shaft part, between the large footpath shaft part and path shaft part of described pin body, be provided with central diameter shaft part, described pin body is matched with described piston rod head hole by the joint shaft bearing that wherein footpath shaft part is set with; Have oil groove in the central diameter shaft part outer rim of described pin body, described oil groove is communicated with the oil nozzle on the limiting board being located at described pin body by oilhole.
In above-mentioned oil hydraulic cylinder bearing pin technological scheme, technological scheme can also be more specifically: on the large footpath shaft part of described pin body, be set with the second axle sleeve matched with described first bearing hole; The limiting board of described pin body is fixedly connected with described first bearing by bolt.
Further, the central diameter shaft part of described pin body and path shaft part joint are positioned at joint shaft bearing bore.
Owing to have employed technique scheme, the utility model compared with prior art has following beneficial effect:
1, the utility model is provided with central diameter shaft part between the large footpath shaft part and path shaft part of pin body, and pin body is matched with piston rod head hole by the joint shaft bearing that wherein footpath shaft part is set with; Have oil groove in the central diameter shaft part outer rim of pin body, oil groove is communicated with the oil nozzle on the limiting board being located at pin body by oilhole.Because joint shaft bearing is sleeved on the central diameter shaft part of pin body, avoid the pin body easy phenomenon grinding boss at its path shaft part in use for some time; Dismantle during maintenance, pin body be installed conveniently, only need to complete 2 Working days, and can not part of damage during dismounting.Carry lubricant oil by oilhole to oil groove, the surface of contact of joint shaft bearing and pin body is lubricated, extend the working life of pin body.
2, on the large footpath shaft part of pin body, the second axle sleeve matched with the first bearing hole is set with; Protect the first bearing hole not frayed, if the second axle sleeve wearing and tearing and replaceable, avoid changing pressurizing frame, reduce maintenance expenses, cost of production is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing oil hydraulic cylinder bearing pin.
Fig. 2 is the structural representation of the utility model embodiment.
Fig. 3 is the structural representation of the pin body of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail:
A kind of oil hydraulic cylinder bearing pin as shown in Figure 2 and Figure 3, comprise the pin body 2 of large footpath shaft part and the path shaft part being provided with limiting board and be attached at successively on this limiting board, pin body 2 by being fixed on by hydraulic cylinder piston rod 4 on first bearing 3 and the second bearing 6 through the first bearing hole, piston rod head hole and the second bearing hole successively, and is equipped with backing plate 8 and locking nut 9 passing the second bearing 6 place; Pin body 2 is set with the interior edge face that the first axle sleeve 7, first axle sleeve 7 matched with the second bearing hole stretches out the second bearing 6 on its path shaft part; Central diameter shaft part is linked with between the large footpath shaft part and path shaft part of pin body 2, pin body 2 is matched with piston rod head hole by the joint shaft bearing 5 that wherein footpath shaft part is set with, one end face and the large footpath shaft part of joint shaft bearing 5 offset, and other end stretches out central diameter shaft part and the first axle sleeve 7 offsets; Central diameter shaft part and the path shaft part joint of pin body 2 are positioned at joint shaft bearing bore; The large footpath shaft part of pin body 2 is set with the chamfering that the endoporus at the second axle sleeve 10, first axle sleeve 7 and second axle sleeve 10 two ends of matching with the first bearing hole and cylindrical are equipped with 3 × 3; The limiting board of pin body 2 is fixedly connected with the first bearing 3 by bolt 1, has oil groove in the central diameter shaft part outer rim of pin body 2, and oil groove is communicated with the oil nozzle 11 on the limiting board being contained in pin body 2 by oilhole.
The utility model joint shaft bearing 5 is sleeved on the central diameter shaft part of pin body 2, avoids the pin body 2 easy phenomenon grinding boss at its path shaft part in use for some time; Dismantle during maintenance, pin body 2 convenience is installed, only need to complete 2 Working days, and can not part of damage during dismounting.Carry lubricant oil by oilhole to oil groove, the surface of contact of joint shaft bearing and pin body is lubricated, extend the working life of pin body.
Claims (3)
1. an oil hydraulic cylinder bearing pin, comprise the pin body (2) of large footpath shaft part and the path shaft part being provided with limiting board and be attached at successively on this limiting board, described pin body (2) is by being fixed on hydraulic cylinder piston rod (4) on the first bearing (3) and the second bearing (6) through the first bearing hole, piston rod head hole and the second bearing hole successively; Described pin body (2) is set with the first axle sleeve (7) matched with described second bearing hole on its path shaft part, it is characterized in that: between the large footpath shaft part and path shaft part of described pin body (2), be provided with central diameter shaft part, described pin body (2) is matched with described piston rod head hole by the joint shaft bearing (5) that wherein footpath shaft part is set with; Have oil groove in the central diameter shaft part outer rim of described pin body (2), described oil groove is communicated with the oil nozzle (11) on the limiting board being located at described pin body (2) by oilhole.
2. oil hydraulic cylinder bearing pin according to claim 1, is characterized in that: on the large footpath shaft part of described pin body (2), be set with the second axle sleeve (10) matched with described first bearing hole; The limiting board of described pin body (2) is fixedly connected with described first bearing (3) by bolt (1).
3. oil hydraulic cylinder bearing pin according to claim 1 and 2, is characterized in that: central diameter shaft part and the path shaft part joint of described pin body (2) are positioned at described joint shaft bearing bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420704343.1U CN204327649U (en) | 2014-11-21 | 2014-11-21 | Oil hydraulic cylinder bearing pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420704343.1U CN204327649U (en) | 2014-11-21 | 2014-11-21 | Oil hydraulic cylinder bearing pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204327649U true CN204327649U (en) | 2015-05-13 |
Family
ID=53164016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420704343.1U Active CN204327649U (en) | 2014-11-21 | 2014-11-21 | Oil hydraulic cylinder bearing pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204327649U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286554A (en) * | 2018-02-28 | 2018-07-17 | 湖北力帝机床股份有限公司 | A kind of axis pin and its connection structure and assembly method |
| CN109790865A (en) * | 2016-10-07 | 2019-05-21 | 卡特彼勒公司 | Pin connector for connection parts |
-
2014
- 2014-11-21 CN CN201420704343.1U patent/CN204327649U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109790865A (en) * | 2016-10-07 | 2019-05-21 | 卡特彼勒公司 | Pin connector for connection parts |
| CN109790865B (en) * | 2016-10-07 | 2022-02-25 | 卡特彼勒公司 | Pin joint for coupling parts |
| CN108286554A (en) * | 2018-02-28 | 2018-07-17 | 湖北力帝机床股份有限公司 | A kind of axis pin and its connection structure and assembly method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |