CN205036672U - Hydraulic cylinder's protection device - Google Patents
Hydraulic cylinder's protection device Download PDFInfo
- Publication number
- CN205036672U CN205036672U CN201520613780.7U CN201520613780U CN205036672U CN 205036672 U CN205036672 U CN 205036672U CN 201520613780 U CN201520613780 U CN 201520613780U CN 205036672 U CN205036672 U CN 205036672U
- Authority
- CN
- China
- Prior art keywords
- backplate
- piston rod
- groove
- guidance set
- plastic cement
- 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
Abstract
The utility model relates to a hydraulic cylinder's protection device, include: cylinder, piston, piston rod, piston rod one end is connected the piston and is overlapped in the cylinder, the cylinder outer wall is fixed with the direction subassembly, the backplate is connected to the piston rod other end, the backplate is parallel with the piston rod, and the backplate both ends that are on a parallel with the piston rod are equipped with the backplate draw -in groove, direction subassembly card is in the backplate draw -in groove, the direction subassembly includes: metal block, plastic piece, the metal block is fixed at the cylinder outer wall, the plastic piece is connected the metal block and is blocked in the backplate draw -in groove, metal block hardness is high, and is not fragile, long service life, plastic piece and backplate contact, coefficient of friction is little, only needs to change plastic piece part, and it is convenient, with low costs to change.
Description
Technical field
The utility model relates to a kind of hydraulic jack, is specifically related to a kind of modified node method of protective gear of hydraulic jack.
Background technique
Hydraulic jack is the straight line moving type executive component that the pressure reduction on ouput force and piston effective area and both sides thereof is directly proportional, its function converts hydraulic energy to mechanical energy, the input quantity of hydraulic jack is flow and the pressure of fluid, what export is point-to-point speed and power, the piston energy accomplish linear to-and-fro motion of hydraulic jack, the straight-line displacement exported is limited, and hydraulic jack is the energy conversion device of mechanical energy hydraulic energy being converted to linear reciprocating motion.Hydraulic jack is widely used in the machinery such as hoist, excavator, by the straight reciprocating motion driving mechanical swing arm of hydraulic jack, completes action of unloading accordingly.
The piston driving piston rod of hydraulic jack does in straight reciprocating motion process, is the rapid wear devices such as protection piston rod, often adds protective gear in the outside of piston rod.The one that discloses Chinese utility model patent CN201210559361 follows up cylinder protection device automatically, this device comprises: be arranged on the safety cover above cylinder rod along cylinder rod (being piston rod) length direction, cylinder tube is provided with the slideway that restriction safety cover slides along cylinder tube, described safety cover is provided with the guide pad with slideway adaptation, and the top of described cylinder rod is provided with the joint driving safety cover flexible when cylinder rod stretches out or retract be connected with safety cover; Stretched by oil cylinder, cylinder rod connection set drives safety cover to run on slideway, thus guarantees that the protection of the easily damaged partss such as cylinder rod in using process puts in place, and the Security of using process.This Patent design protective gear of oil cylinder easily damaged parts; but there is easily damaged parts equally in this protective gear; as the guide pad of this protective gear, little for ensureing the friction factor of guide pad and safety cover, generally can adopt plastics material; and plastic material and safety cover friction slip are consumed soon; or in guide pad and cylinder barrel joint glue weakness, stressed rapid wear, causes scrapping; the guide pad life-span is reduced, and cost increases.
Model utility content
The problem that the utility model mainly solves is to provide the protective gear of length of a kind of life-span, easily changeable hydraulic jack.
For solving the problem, the protective gear of a kind of hydraulic jack that the utility model provides, comprise: cylinder barrel, piston, piston rod, piston rod one end connects piston and is placed in cylinder barrel, described cylinder barrel outer wall is fixed with guidance set, the described piston rod the other end connects backplate, described backplate is parallel with piston rod, the backplate two ends being parallel to piston rod are provided with backplate draw-in groove, described guidance set is stuck in backplate draw-in groove, described guidance set comprises: slug, plastic cement block, described slug is fixed on cylinder barrel outer wall, described plastic cement block connection metal block is also stuck in backplate draw-in groove.
A kind of preferred version of the present utility model, is characterized in that: the slug of described guidance set is list structure, and two ends are in " convex " shape, and metal fixture block is extended in " convex " shape slug outside.
Another kind of preferred version of the present utility model, is characterized in that: the plastic cement block of described guidance set is in " [" shape, described " [" moulds the plastic cement draw-in groove that the upper and lower both sides of blob of viscose are provided with indent.
Another kind of preferred version of the present utility model, is characterized in that: metal fixture block is stuck in plastic cement draw-in groove and overlaps with it.
Another kind of preferred version of the present utility model, is characterized in that: described guidance set is also provided with bolt hole, and described spiro keyhole position is on the slug of guidance set.
Utilize the technical solution of the utility model, there is following beneficial effect: the guidance set guiding backplate to slide comprises slug, plastic cement block, and slug hardness is high, not fragile, long service life; Plastic cement block contacts with backplate, and friction factor is little, only need change plastic cement block part, and replacing is convenient, cost is low.
Accompanying drawing explanation
Figure 1 shows that cylinder system schematic diagram of the present utility model;
Figure 2 shows that the schematic cross-section of AB position in Fig. 1;
Figure 3 shows that the guidance set schematic diagram that the utility model provides;
Figure 4 shows that the guidance set exploded view that the utility model provides.
Embodiment
For further illustrating each embodiment, the utility model provides accompanying drawing.These accompanying drawings are a part for the utility model disclosure, and it is mainly in order to illustrate embodiment, and the associated description of specification can be coordinated to explain the operation principles of embodiment.Coordinate with reference to these contents, those of ordinary skill in the art will be understood that other possible mode of executions and advantage of the present utility model.Assembly in figure not drawn on scale, and similar element numbers is commonly used to assembly like representation class.
Now with embodiment, the utility model is further illustrated by reference to the accompanying drawings.
Referring to figs. 1 through Figure 4 shows that the comparatively preferred scheme of one of the present utility model, comprise: cylinder barrel 10, piston 101, guide sleeve 102, piston rod 20, backplate 30, guidance set 40, piston rod 20 is placed in guide sleeve 102, one end connects piston 101 and is arranged in cylinder barrel 10, piston rod 20 the other end connects backplate 30 parallel with it, backplate 30 is provided with backplate draw-in groove 301, and guidance set 40 is stuck in the movement guiding backplate 30 in backplate draw-in groove 301.Guidance set 40 comprises slug 401, plastic cement block 402, slug 401 is list structure, two ends are in " convex " shape, and extend metal fixture block 403, plastic cement block 402 is in " [" shape, " the upper and lower both sides of [" shape are provided with plastic cement groove 404, and metal fixture block 403 to be stuck in plastic cement groove 404 and to overlap, and makes slug 401 be connected with plastic cement block 402 and fix.Slug 401 is provided with two bolts hole 405, and guidance set 40 is arranged on outside cylinder barrel 10 and utilizes bolt 50 by fixing outside bolt hole 405 and cylinder barrel 10.The plastic cement block 402 of guidance set 40 is stuck in the movement guiding backplate 30 in backplate draw-in groove 301.
In the present embodiment, guide sleeve 102 is located in cylinder barrel 10, plays the leading role of piston rod 20.
In the present embodiment, bolt hole 405 is positioned on slug 401, and slug 401 material is comparatively hard, is not easy because the reasons such as bolt hole 405 position thinner thickness cause damage.
When pressurizeing in cylinder barrel 10 or reducing pressure, the cavity at piston 101 two ends is mobile because pressure official post piston 101 produces, piston 101 drives piston rod 20 to do linear re-ciprocating motion, backplate 30 also moves with piston rod 20 together, guidance set 40 is stuck in backplate 30, and guide backplate 30 to move along the direction of piston rod 20, plastic cement block 402 produces with the backplate draw-in groove 301 of piston rod 20 and rubs, because of plastic cement block 402 " two ends of [" shape are stuck on the casting lug thereon of slug 401 " convex " shape, ensure that plastic cement block 402 can not depart from slug 401 because of frictional force.Intermediate metal block 401 material is comparatively hard, not easily occurs the phenomenon of forced breakage, when plastic cement block 402 is because of friction texturizing, only plastic cement block 402 need be unloaded and more to renew, change and facilitate.
Above, the guidance set 40 guiding backplate 30 to slide comprises slug 401, plastic cement block 402, and slug 401 hardness is high, not fragile, long service life; Plastic cement block 402 contacts with backplate 30, and friction factor is little, only need change plastic cement block 402 parts, and replacing is convenient, cost is low.
Fig. 1 to Fig. 4 discloses and is applicable to the comparatively preferred scheme of one of the present utility model, certain, being applicable to scheme of the present utility model is not limited to as mentioned above, means of fixation as different from cylinder barrel 10 in guidance set 40, the Placement that slug 401 is different from plastic cement block 402, material, face shaping that slug 401 is different, the different face shapings of plastic cement block 402, the position that the backplate draw-in groove 301 of backplate 30 is different or structure; Be connected with slug 401 as long as plastic cement block 402 is satisfied and is stuck in backplate draw-in groove 301, above scheme is equally applicable to the utility model.Concrete method is that those skilled in the art can be gently wield, and just differing at this one schematically illustrates, and of courses, as long as meet the content described in the utility model claim, changes, modifies, all belong to protection domain of the present utility model no matter what is done.
Claims (5)
1. the protective gear of a hydraulic jack; comprise: cylinder barrel, piston, piston rod; piston rod one end connects piston and is placed in cylinder barrel; described cylinder barrel outer wall is fixed with guidance set; the described piston rod the other end connects backplate; described backplate is parallel with piston rod; the backplate two ends being parallel to piston rod are provided with backplate draw-in groove; described guidance set is stuck in backplate draw-in groove; it is characterized in that; described guidance set comprises: slug, plastic cement block, and described slug is fixed on cylinder barrel outer wall, and described plastic cement block connection metal block is also stuck in backplate draw-in groove.
2. the protective gear of hydraulic jack according to claim 1, is characterized in that: the slug of described guidance set is list structure, and two ends are in " convex " shape, and metal fixture block is extended in " convex " shape slug outside.
3. the protective gear of hydraulic jack according to claim 1, is characterized in that: the plastic cement block of described guidance set is in " [" shape, described " [" moulds the plastic cement draw-in groove that the upper and lower both sides of blob of viscose are provided with indent.
4. the protective gear of the hydraulic jack according to Claims 2 or 3, is characterized in that: described metal fixture block is stuck in plastic cement draw-in groove and overlaps with it.
5. the protective gear of hydraulic jack according to claim 1, is characterized in that: described guidance set is also provided with bolt hole, and described spiro keyhole position is on the slug of guidance set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520613780.7U CN205036672U (en) | 2015-08-14 | 2015-08-14 | Hydraulic cylinder's protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520613780.7U CN205036672U (en) | 2015-08-14 | 2015-08-14 | Hydraulic cylinder's protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205036672U true CN205036672U (en) | 2016-02-17 |
Family
ID=55295577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520613780.7U Expired - Fee Related CN205036672U (en) | 2015-08-14 | 2015-08-14 | Hydraulic cylinder's protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205036672U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10844578B2 (en) | 2018-10-24 | 2020-11-24 | Caterpillar Inc. | Cylinder protection device |
-
2015
- 2015-08-14 CN CN201520613780.7U patent/CN205036672U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10844578B2 (en) | 2018-10-24 | 2020-11-24 | Caterpillar Inc. | Cylinder protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160217 Termination date: 20180814 |