Corrosion-resistant hydraulic oil cylinder with external protection structure

Abstract

The utility model discloses a corrosion-resistant hydraulic oil cylinder with an external protection structure, and relates to the technical field of hydraulic oil cylinders. Comprising a hydraulic oil cylinder body, the outer wall of the bottom of the hydraulic oil cylinder body is fixedly connected with a connecting base, the outer wall of the buffer structure is slidably connected with a limiting structure, the inner wall of the limiting structure is slidably connected with a stabilizing structure, the buffer structure comprises a connecting sleeve, and the inner wall of the connecting sleeve is fixedly connected with a supporting plate; the outer wall of the supporting plate is fixedly connected with a first elastic block, the outer wall of the supporting plate is fixedly connected with a second elastic block, the outer walls of the first elastic block and the second elastic block are fixedly connected with limiting blocks, the outer walls of the limiting blocks are fixedly connected with stress plates, and the first elastic block and the second elastic block are matched with the stress plates; impact force is absorbed through elastic deformation, the limiting structure synchronously limits deviation of the buffering structure, and the oil cylinder body is prevented from being damaged by impact.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic cylinder technical field, concretely is a kind of corrosion-resistant hydraulic cylinder with external protection structure. BACKGROUND

[0002] As core power execution component, hydraulic cylinder often faces the double challenge of high strength impact and corrosive medium erosion. For example, when port machinery is operated, hydraulic cylinder is frequently subjected to cargo collision and sea wind salt spray corrosion;Hydraulic cylinder in chemical equipment is in contact with corrosive liquid such as acid and alkali for a long time, and hydraulic cylinder in mine machinery is subjected to rock impact at any time in stone crushing and excavation operation. The traditional hydraulic cylinder exposes defects in this kind of environment. On the one hand, there is no effective external protection structure, and when accidental impact occurs, the impact force directly acts on the cylinder body, which can cause cylinder deformation and piston rod bending, even cause internal sealing damage, hydraulic oil leakage and other problems, affect the normal operation of equipment. On the other hand, the conventional corrosion prevention design is mostly coating, which is exposed to external environment for a long time and lacks protection components. The protective coating on the surface of the cylinder body is easy to fall off, which can cause corrosion of parts and shorten the service life of the hydraulic cylinder. SUMMARY

[0003] (I) Technical problem solved

[0004] In view of the deficiencies of the prior art, the utility model provides a corrosion-resistant hydraulic cylinder with external protection structure, which is designed by buffering structure, limiting structure and stabilizing structure. The impact protection and stable operation problem is solved, not only the hydraulic cylinder body is protected, but also the external coating is protected, so as to improve the service life of the equipment and ensure the stability of the working process.

[0005] (II) Technical scheme

[0006] To achieve the above purpose, the utility model realizes the following technical scheme: a corrosion-resistant hydraulic cylinder with external protection structure, comprising a hydraulic cylinder body, the outer wall of the bottom of the hydraulic cylinder body is fixedly connected with a connecting base, further comprising: buffering structure, the outer wall of the buffering structure is fixedly connected with the outer wall of the hydraulic cylinder body, the outer wall of the buffering structure is slidably connected with a limiting structure, the inner wall of the limiting structure is slidably connected with a stabilizing structure;

[0007] Preferably, the buffer structure comprises a connecting sleeve, the inner wall of the connecting sleeve is fixedly connected with a supporting plate, the outer wall of the supporting plate is fixedly connected with a first elastic block, the outer wall of the supporting plate is fixedly connected with a second elastic block, the outer walls of the first elastic block and the second elastic block are fixedly connected with limiting blocks, the outer wall of the limiting block is fixedly connected with a stress plate, the side wall in the connecting sleeve is fixedly connected with the outer wall of the hydraulic oil cylinder body, by setting the buffer structure, the first elastic block, the second elastic block cooperate with the stress plate, when the hydraulic oil cylinder is externally collided, the impact force is absorbed through elastic deformation, the limiting structure synchronously limits the deviation of the buffer structure, prevents the impact damage to the oil cylinder body, effectively protects the internal structure, reduces the damage of the surface anti-corrosion coating of the hydraulic oil cylinder body.

[0008] Preferably, the limiting structure comprises a fixing sleeve, a limiting groove is formed in the wall of the fixing sleeve, a positioning ring is fixedly connected to the outer wall of the top of the fixing sleeve, a positioning hole is formed in the wall of the positioning ring, the outer wall of the bottom of the fixing sleeve is fixedly connected with the outer wall of the top of the connecting base, and the inner wall of the fixing sleeve is slidably connected with the side wall of the limiting block through the limiting groove.

[0009] Preferably, the stabilizing structure comprises a sliding bar, a spacing groove is formed in the outer wall of the sliding bar, a rubber ring is fixedly connected to the outer wall of the top of the sliding bar, the outer wall of the sliding bar is slidably connected with the inner wall of the positioning ring through the positioning hole, and the rubber ring is sleeved on the output end of the top of the hydraulic oil cylinder body.

[0010] (Three) beneficial effects

[0011] The utility model provides a corrosion -resistant hydraulic oil cylinder with external protection structure.

[0012] Beneficial effects:

[0013] (One), the hydraulic oil cylinder, by setting the buffer structure, the first elastic block, the second elastic block cooperate with the stress plate, when the hydraulic oil cylinder is externally collided, the impact force is absorbed through elastic deformation, the limiting structure synchronously limits the deviation of the buffer structure, prevents the impact damage to the oil cylinder body, effectively protects the internal structure, reduces the damage of the surface anti-corrosion coating of the hydraulic oil cylinder body.

[0014] (Two), the hydraulic oil cylinder, the rubber ring of stabilizing structure and sliding bar cooperate, assist guiding telescopic rod when the hydraulic oil cylinder telescopes, reduce the shake, and slow down the vibration when returning, spacing groove reduces the friction and can buffer the impact, thereby ensure that the hydraulic oil cylinder runs stably, and further improve the stability of the working process. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure schematic view of the utility model;

[0016] Figure 2 It is the partial structure schematic view of the connecting base of the utility model;

[0017] Figure 3 It is the internal structure schematic view of the protection structure of the utility model;

[0018] Figure 4 It is the internal structure schematic view of the limiting structure of the utility model;

[0019] Figure 5 It is the structure schematic view of the stabilizing structure of the utility model.

[0020] In the drawing: 1, hydraulic oil cylinder body;2, connecting base;3, buffer structure;4, limiting structure;5, stabilizing structure;31, connecting sleeve;32, support plate;33, first elastic block;34, second elastic block;35, limiting block;36, stress plate;41, fixed sleeve;42, limiting groove;43, positioning ring;44, positioning hole;51, sliding bar;52, interval groove;53, rubber ring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a kind of corrosion-resistant hydraulic oil cylinder with external protection structure, including hydraulic oil cylinder body 1, the outer wall of the bottom of hydraulic oil cylinder body 1 is fixedly connected with connecting base 2, further include: buffer structure 3, the outer wall of buffer structure 3 is fixedly connected with the outer wall of hydraulic oil cylinder body 1, the outer wall of buffer structure 3 is slidably connected with limiting structure 4, the inner wall of limiting structure 4 is slidably connected with stabilizing structure 5;

[0023] The buffer structure 3 comprises a connecting sleeve 31, the inner wall of the connecting sleeve 31 is fixedly connected with a supporting plate 32, the outer wall of the supporting plate 32 is fixedly connected with a first elastic block 33, the outer wall of the supporting plate 32 is fixedly connected with a second elastic block 34, the outer wall of the first elastic block 33 and the second elastic block 34 is fixedly connected with a limiting block 35, the outer wall of the limiting block 35 is fixedly connected with a stress plate 36, the side wall in the connecting sleeve 31 is fixedly connected with the outer wall of the hydraulic oil cylinder body 1, the inner wall of the connecting sleeve 31 of the buffer structure 3 is fixed with the outer wall of the hydraulic oil cylinder body 1, the first elastic block 33 and the second elastic block 34 are fixed on the supporting plate 32 in the inside, the limiting block 35 on the outer side of the two is connected with the stress plate 36, when the hydraulic oil cylinder body 1 is subjected to external collision or impact, the impact force is transmitted to the stress plate 36, the stress plate 36 pushes the limiting block 35, so that the first elastic block 33 and the second elastic block 34 are elastically deformed, the impact force is absorbed through the elastic buffer of itself, and damage to the surface corrosion-resistant coating of the hydraulic oil cylinder body 1 is reduced.

[0024] The limiting structure 4 comprises a fixed sleeve 41, a limiting groove 42 is formed in the wall of the fixed sleeve 41, a positioning ring 43 is fixedly connected to the outer wall of the top of the fixed sleeve 41, a positioning hole 44 is formed in the wall of the positioning ring 43, the outer wall of the bottom of the fixed sleeve 41 is fixedly connected with the outer wall of the top of the connecting base 2, the inner wall of the fixed sleeve 41 is slidably connected with the side wall of the limiting block 35 through the limiting groove 42, the bottom of the fixed sleeve 41 of the limiting structure 4 is connected with the connecting base 2, the limiting groove 42 in the wall is slidably connected with the limiting block 35 of the buffer structure 3, the movement of the buffer structure 3 is limited, and excessive deviation is prevented.

[0025] The stabilizing structure 5 comprises a sliding bar 51, a spacing groove 52 is formed in the outer wall of the sliding bar 51, a rubber ring 53 is fixedly connected to the outer wall of the top of the sliding bar 51, the outer wall of the sliding bar 51 is slidably connected with the inner wall of the positioning ring 43 through the positioning hole 44, the rubber ring 53 is sleeved on the output end of the top of the hydraulic oil cylinder body 1, the sliding bar 51 of the stabilizing structure 5 is slidably connected with the inner wall of the positioning ring 43 through the positioning hole 44, the spacing groove 52 in the outer wall is formed by reducing the friction surface to reduce the friction when sliding, and at the same time, the sliding bar 51 has a buffer space when being impacted, so that the impact force is not directly impacted to the hydraulic oil cylinder body 1, the rubber ring 53 is sleeved on the top of the hydraulic oil cylinder body 1, the rubber ring 53 moves together with the sliding bar 51 when the hydraulic oil cylinder body 1 moves up and down, and in this process, the movement of the telescopic rod of the hydraulic oil cylinder body 1 is assisted to guide, and the shaking of the output end when moving is reduced.

[0026] When in use, the corrosion-resistant hydraulic cylinder with external protection structure is cooperated by the hydraulic cylinder body 1, the connecting base 2, the buffer structure 3, the limiting structure 4 and the stabilizing structure 5, the connecting base 2 is fixed at the bottom of the hydraulic cylinder body 1 to provide support for the whole device, the inner wall of the connecting sleeve 31 of the buffer structure 3 is fixed with the outer wall of the hydraulic cylinder body 1, the first elastic block 33 and the second elastic block 34 are fixed on the support plate 32 in the buffer structure 3, the limiting block 35 on the outer side of the two is connected with the stress plate 36, when the hydraulic cylinder body 1 is subjected to external collision or impact, the impact force is transmitted to the stress plate 36, the stress plate 36 pushes the limiting block 35, so that the first elastic block 33 and the second elastic block 34 are elastically deformed, the impact force is absorbed through the elastic buffer of itself, the influence of external impact on the hydraulic cylinder body 1 is reduced, and the internal structure of the cylinder is protected;

[0027] The fixed sleeve 41 of the limiting structure 4 is connected with the connecting base 2 at the bottom, the limiting groove 42 in the wall is slidably connected with the limiting block 35 of the buffer structure 3, the movement of the buffer structure 3 is limited, and excessive deviation is prevented, the positioning ring 43 at the top of the fixed sleeve 41 is provided with a positioning hole 44, and the stabilizing structure 5 is installed;

[0028] The sliding bar 51 of the stabilizing structure 5 is slidably connected with the inner wall of the positioning ring 43 through the positioning hole 44, the interval groove 52 on the outer wall is provided to reduce the friction surface to reduce the friction during sliding, and the sliding bar 51 has a buffer space when being impacted, so that the impact force is not directly impacted on the hydraulic cylinder body 1, the rubber ring 53 at the top is sleeved on the top of the hydraulic cylinder body 1, the rubber ring 53 moves together with the sliding bar 51 during the telescopic movement of the hydraulic cylinder body 1, and the telescopic rod of the hydraulic cylinder body 1 is assisted to move in the process, so that the shaking of the output end during movement is reduced, and the telescopic rod is limited by the bending part of the sliding bar 51 and the hydraulic cylinder body 1 during the returning process, so that the vibration of the returning process is slowed down, and the stability of the hydraulic cylinder movement is ensured.

[0029] It should be noted that, in the present text, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0030] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corrosion-resistant hydraulic cylinder with an external protective structure, comprising a hydraulic cylinder body (1), the outer wall of the bottom of the hydraulic cylinder body (1) is fixedly connected with a connecting base (2), characterized in that: Also include: Buffer structure (3), the outer wall of the buffer structure (3) is fixedly connected with the outer wall of the hydraulic cylinder body (1), the outer wall of the buffer structure (3) is slidingly connected with the limiting structure (4), the inner wall of the limiting structure (4) is slidingly connected with the stabilizing structure (5); The buffer structure (3) comprises a connecting sleeve (31), the inner wall of the connecting sleeve (31) is fixedly connected with a support plate (32), the outer wall of the support plate (32) is fixedly connected with a first elastic block (33), the outer wall of the support plate (32) is fixedly connected with a second elastic block (34), the outer wall of the first elastic block (33) and the second elastic block (34) is fixedly connected with a limiting block (35), the outer wall of the limiting block (35) is fixedly connected with a stress plate (36).

2. The corrosion resistant hydraulic cylinder with external protection structure according to claim 1, characterized in that: The side wall inside the connecting sleeve (31) is fixedly connected with the outer wall of the hydraulic cylinder body (1).

3. The corrosion resistant hydraulic cylinder with external protection structure according to claim 1, characterized in that: The limiting structure (4) comprises a fixing sleeve (41), a limiting groove (42) is formed in the wall of the fixing sleeve (41), a positioning ring (43) is fixedly connected with the outer wall of the top of the fixing sleeve (41), a positioning hole (44) is formed in the wall of the positioning ring (43).

4. The corrosion resistant hydraulic cylinder with external protection structure according to claim 3, characterized in that: The outer wall of the bottom of the fixing sleeve (41) is fixedly connected with the outer wall of the top of the connecting base (2), and the inner wall of the fixing sleeve (41) is slidingly connected with the side wall of the limiting block (35) through the limiting groove (42).

5. The corrosion resistant hydraulic cylinder with external protection structure according to claim 3, characterized in that: The stabilizing structure (5) comprises a sliding bar (51), the outer wall of the sliding bar (51) is provided with a spacing groove (52), and the outer wall of the top of the sliding bar (51) is fixedly connected with a rubber ring (53).

6. The corrosion resistant hydraulic cylinder with external protection structure according to claim 5, characterized in that: The outer wall of the sliding bar (51) is slidingly connected with the inner wall of the positioning ring (43) through the positioning hole (44), and the rubber ring (53) is sleeved on the output end of the top of the hydraulic cylinder body (1).

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