CN204239382U - Oil cylinder piston rod protective device - Google Patents
Oil cylinder piston rod protective device Download PDFInfo
- Publication number
- CN204239382U CN204239382U CN201420544401.9U CN201420544401U CN204239382U CN 204239382 U CN204239382 U CN 204239382U CN 201420544401 U CN201420544401 U CN 201420544401U CN 204239382 U CN204239382 U CN 204239382U
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- piston rod
- oil cylinder
- shield
- protective device
- cylinder piston
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Abstract
The utility model discloses a kind of oil cylinder piston rod protective device, comprise the connecting ring (1) for connecting piston rod head and shield body (3), connecting ring (1) root is connected in shield body (3), shield body (3) is made up of upper shield (3a) and lower shield (3b), upper shield (3a) and lower shield (3b) coordinate the shield body (3) that is composed of a fixed connection, the inwall bore of shield body is greater than the outer wall bore of oil cylinder, is enclosed within oil cylinder outer wall.The oil cylinder piston rod protective device that the utility model adopts is enclosed within oil cylinder outer wall, can stretch with piston rod and rotate, wrap oil cylinder outer wall all the time; real-time guard cylinder piston rod, adopts split type installation, convenient disassembly; reduce maintenance cost, facilitate the clean and maintenance of each several part.
Description
Technical field
The utility model relates to a kind of oil cylinder piston rod protective device, is applied particularly on development machine hydraulic jack, belongs to engineering machinery field.
Background technique
At present, oil cylinder is widely used in development machine.Due to this special work condition environment of tunnelling; the piston rod that oil cylinder extends often can be subject to the shock of rock and the sandy soil falling down in working procedure or fly out; thus damage piston rod; cause oil sealing leakage of oil; oil cylinder inner wall even can be caused to be badly damaged, to affect cylinder efficient performance and used life.
In order to avoid piston rod damages because being subject to the impact of outside bad working environments, what adopt in prior art is install piston rod protection cover in piston rod outside additional or protect frame, enables safety cover or protect frame to stretch with piston rod, plays the effect of protection piston rod.But such safety cover or to protect frame be that integral type is arranged on piston rod outside, install dumb, maintenance cost is higher, also inconvenient dismounting cleaning.
Summary of the invention
For above-mentioned prior art Problems existing, the purpose of this utility model is to provide a kind of oil cylinder piston rod protective device, and piston rod can be protected not to be damaged; split typely be arranged on piston rod outside; convenient disassembly, maintenance cost is low, also facilitates the clean and maintenance of each several part.
For achieving the above object, the technical solution adopted in the utility model is: a kind of oil cylinder piston rod protective device, comprise the connecting ring for connecting piston rod head and shield body, connecting ring root is connected in shield body, shield body is made up of upper shield and lower shield, upper shield and lower shield coordinate the shield body that is composed of a fixed connection, and the inwall bore of shield body is greater than the outer wall bore of oil cylinder, and shield body is enclosed within oil cylinder outer wall.
Preferably, the bent plate of lower shield to be cross section be circular arc, and lower shield is provided with opening, upper shield and lower shield coordinate composition tubular, available protecting piston rod; The design of opening be in order to avoid oil cylinder piston rod protective device assemble and work time with the interference of the pipeline being subject to oil cylinder is arranged and joint etc.
Preferably, consider that the piston rod face of being impacted only has half, simultaneously in order to save cost of material, lower shield can be the blue structure of card, blocks blue structure and comprises at least two card orchids.
Preferably, block blue structure and comprise card blue I and card blue II, card blue I and card blue II are fixedly installed on the two ends of upper shield respectively, block blue symmetrical configuration and are arranged on two ends and make the ability of upper shield overall opposing deformation when being subject to external force collision stronger.
Further, in order to avoid oil cylinder piston rod protective device assemble and work time be subject to the interference of pipeline that oil cylinder is arranged and joint etc., card orchid II is provided with groove.
Further, oil cylinder piston rod protective device can cause cylinder wall to wear and tear with doing relative movement in piston rod movement process with oil cylinder, in order to reduce wear, one end that upper shield with lower shield contact with cylinder wall is fixedly installed wear parts respectively, and wear parts can be wear-resisting ring or wear-resistant block.
The combination of above-mentioned protective equipment is arranged on after on cylinder piston rod, and when cylinder piston rod is flexible and rotate, the connecting ring connected with piston rod stretches with piston rod and rotates; The motion of connecting ring drives shield body motion, make whole protective equipment along with oil cylinder together flexible and rotation, thus oil cylinder piston rod protective device wraps oil cylinder outer wall all the time, avoids piston rod to be subject to foreign object strike, real-time guard cylinder piston rod.
The oil cylinder piston rod protective device that the utility model adopts is enclosed within oil cylinder outer wall, can stretch with piston rod and rotate, adopt split type installation, convenient disassembly, reduce maintenance cost, facilitate the clean and maintenance of each several part.
Accompanying drawing explanation
Fig. 1 is the stereogram of the utility model first embodiment;
Fig. 2 is the stereogram of the utility model second embodiment
Fig. 3 is the structural representation of the utility model second embodiment;
Fig. 4 is the plan view of Fig. 3.
In figure, 1. connecting ring, 2. bolt I, 3. shield body, 3a. upper shield, 3b. lower shield, 4. bolt II, 5. opening, 6. wear parts, 7. bolt III, 8. groove, 9. card blue I, 10. card blue II.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
First embodiment of oil cylinder piston rod protective device as shown in Figure 1, the bent plate of lower shield 3b to be cross section be circular arc, upper shield 3a is fixedly connected with rear composition shield body 3 with the cooperation of lower shield 3b bolt II 4, the inwall bore of shield body 3 is greater than the outer wall bore of oil cylinder, be enclosed within oil cylinder outer wall, connecting ring 1 root is connected on upper shield 3a and lower shield 3b by bolt I 2; Lower shield 3b is provided with opening 5.
Shield body 3 is coordinated by upper shield 3a and lower shield 3b and form tubular, after connecting ring 1 is connected by bearing pin etc. with piston rod head, when cylinder piston rod is flexible and rotation time, the connecting ring 1 connected with piston rod head stretches with piston rod and rotates; The motion of connecting ring 1, drive the motion of shield body 3, make whole protective equipment along with oil cylinder together flexible and rotation, thus oil cylinder piston rod protective device wraps oil cylinder outer wall all the time, the shock avoid piston rod to be subject to stone, mincing etc., real-time guard cylinder piston rod; The setting of opening 5 be in order to avoid oil cylinder piston rod protective device assemble and work time be subject to the interference of pipeline that oil cylinder is arranged and joint etc.
Further, in order to reduce oil cylinder piston rod protective device with the wearing and tearing to cylinder wall during oil cylinder relative movement, with bolt III 7 wear parts 6 is fixed on one end that upper shield 3a and lower shield 3b contact with cylinder wall.
Second embodiment of oil cylinder piston rod protective device as shown in Figures 2 to 4, card blue I 9 and Ka Lan II 10 are fixed on the two ends of upper shield 3a respectively by bolt II 4, composition shield body 3, the inwall bore of shield body 3 is greater than the outer wall bore of oil cylinder, be enclosed within oil cylinder outer wall, connecting ring 1 root is fixed on upper shield 3a and Ka Lan I 9 by bolt I 2.
Consider that device in use only has half in the face of being impacted, the blue structure of card is adopted, after connecting ring 1 is connected by bearing pin etc. with piston rod head, during work in embodiment two, when cylinder piston rod is flexible and rotate, the connecting ring 1 connected with piston rod head stretches with piston rod and rotates; The motion of connecting ring 1, make whole protective equipment along with oil cylinder together flexible and rotation, thus oil cylinder piston rod protective device wraps oil cylinder outer wall all the time, real-time guard cylinder piston rod.Such structure, under the prerequisite guaranteeing real-time guard cylinder piston rod, saves the materials of device, has saved cost.
Further, in order to avoid oil cylinder piston rod protective device assemble and work time be subject to the interference of pipeline that oil cylinder is arranged and joint etc., card orchid II 10 is provided with groove 8.
Further, in order to reduce oil cylinder piston rod protective device with the wearing and tearing to cylinder wall during oil cylinder relative movement, with bolt III 7, wear parts 6 is fixed on one end that upper shield 3a with Ka Lan II 10 contacts with cylinder wall.
Claims (6)
1. an oil cylinder piston rod protective device, comprise the connecting ring (1) for connecting piston rod head and shield body (3), described connecting ring (1) root is connected in shield body (3), it is characterized in that, described shield body (3) is made up of upper shield (3a) and lower shield (3b), described upper shield (3a) and lower shield (3b) coordinate the shield body (3) that is composed of a fixed connection, the inwall bore of described shield body (3) is greater than the outer wall bore of oil cylinder, and shield body (3) is enclosed within oil cylinder outer wall.
2. oil cylinder piston rod protective device according to claim 1, is characterized in that, described lower shield (3b) for cross section be the bent plate of circular arc, described lower shield (3b) is provided with opening (5).
3. oil cylinder piston rod protective device according to claim 1, is characterized in that, described lower shield (3b) is the blue structure of card, and it is blue that the blue structure of described card comprises at least two cards.
4. oil cylinder piston rod protective device according to claim 3, is characterized in that, the blue structure of described card comprises card blue I (9) and card blue II (10), and described card blue I (9) and card blue II (10) are fixedly installed on the two ends of upper shield (3a) respectively.
5. the oil cylinder piston rod protective device according to claim 3 or 4, is characterized in that, described card blue II (10) is provided with groove (8).
6. according to the arbitrary described oil cylinder piston rod protective device of Claims 1-4, it is characterized in that, described upper shield (3a) is fixedly installed wear parts (6) respectively with the upper one end contacted with cylinder wall of lower shield (3b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420544401.9U CN204239382U (en) | 2014-09-22 | 2014-09-22 | Oil cylinder piston rod protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420544401.9U CN204239382U (en) | 2014-09-22 | 2014-09-22 | Oil cylinder piston rod protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204239382U true CN204239382U (en) | 2015-04-01 |
Family
ID=52768884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420544401.9U Active CN204239382U (en) | 2014-09-22 | 2014-09-22 | Oil cylinder piston rod protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204239382U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321564A (en) * | 2015-06-30 | 2017-01-11 | 舍弗勒技术股份两合公司 | Protective sleeve for a hydraulic unit and hydraulic unit assembly comprising a protective sleeve |
| CN110630583A (en) * | 2019-09-27 | 2019-12-31 | 上海三一重机股份有限公司 | Hydraulic cylinder protector and engineering vehicle |
-
2014
- 2014-09-22 CN CN201420544401.9U patent/CN204239382U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321564A (en) * | 2015-06-30 | 2017-01-11 | 舍弗勒技术股份两合公司 | Protective sleeve for a hydraulic unit and hydraulic unit assembly comprising a protective sleeve |
| CN110630583A (en) * | 2019-09-27 | 2019-12-31 | 上海三一重机股份有限公司 | Hydraulic cylinder protector and engineering vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |