Horizontal oil cylinder sealing structure and kitchen waste presser

Abstract

The utility model relates to the technical field of hydraulic oil cylinders, and discloses a horizontal oil cylinder sealing structure and a kitchen waste presser. The horizontal oil cylinder sealing structure comprises a cylinder body, a guide sleeve and a piston, the piston comprises a piston rod and a piston head, the piston head is located in the cylinder body, and the piston rod is sleeved with the guide sleeve. The horizontal oil cylinder sealing structure further comprises a Y sealing ring and a Glyd ring which are arranged on the piston rod in a sleeving mode, and the guide sleeve is in sliding sealing fit with the piston rod through the Y sealing ring and the Glyd ring. The horizontal oil cylinder sealing structure further comprises guide belts, the guide belts comprise the first guide belt, the second guide belt and the third guide belt which are arranged on the periphery of the piston rod in a sleeving mode, the first guide belt is located on the side, away from the glyd ring, of the Y sealing ring, the second guide belt is located between the Y sealing ring and the glyd ring, and the third guide belt is located on the side, away from the Y sealing ring, of the glyd ring. The horizontal oil cylinder sealing structure can solve the problems that a horizontal oil cylinder seal is prone to abrasion and leakage, and the sealing structure is frequently replaced.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic oil cylinder technical field especially relates to a horizontal oil cylinder sealing structure and kitchen waste press. BACKGROUND

[0002] High pressure extrusion equipment is more and more widely used in kitchen waste treatment, and such equipment is mostly installed horizontally for feeding convenience, and in the application process, the hydraulic oil cylinder generally faces problems such as large processing capacity, fast operation, long working time, high oil temperature, poor working condition, corrosive liquid and complex garbage composition, and easy eccentric load, which leads to the fact that the traditional vertical installation oil cylinder and sealing mode cannot meet the use requirements, the oil cylinder sealing is easy to wear, cannot maintain pressure, and even causes leakage in serious cases.

[0003] Therefore, a horizontal oil cylinder sealing structure and kitchen waste press are needed to solve the above problems. UTILITY MODEL CONTENTS

[0004] One purpose of the utility model is to provide a horizontal oil cylinder sealing structure to solve the problems of easy wear and easy leakage of the horizontal oil cylinder sealing, and frequent replacement of the sealing structure.

[0005] As conceived above, the technical scheme adopted by the utility model is as follows:

[0006] A horizontal oil cylinder sealing structure is provided, which comprises a cylinder body, a guide sleeve and a piston, the piston comprises a piston rod and a piston head connected, the piston head is located in the cylinder body, and the guide sleeve is sleeved on the piston rod;

[0007] The horizontal oil cylinder sealing structure further comprises a Y sealing ring and a Gley ring sleeved on the piston rod, and the guide sleeve is in sliding sealing cooperation with the piston rod through the Y sealing ring and the Gley ring;

[0008] The horizontal oil cylinder sealing structure further comprises a guide belt, the guide belt comprises a first guide belt, a second guide belt and a third guide belt sleeved on the piston rod, the first guide belt is located on the side of the Y sealing ring away from the Gley ring, the second guide belt is located between the Y sealing ring and the Gley ring, and the third guide belt is located on the side of the Gley ring away from the Y sealing ring.

[0009] Optionally, the horizontal oil cylinder sealing structure further comprises a copper sleeve, and the copper sleeve is clamped between the piston rod and the guide sleeve and located at one end of the piston rod close to the piston head.

[0010] Optionally, the horizontal oil cylinder sealing structure further comprises a dustproof ring, and the dustproof ring is clamped between the piston rod and the guide sleeve and located at one end of the piston rod away from the piston head.

[0011] Optionally, the number of the first guide belts is N1, 2≤N1≤4; and / or,

[0012] the number of the second guide belts is N2, 2≤N2≤4; and / or,

[0013] the number of the third guide belts is N3, 2≤N3≤4.

[0014] Optionally, the horizontal oil cylinder sealing structure further comprises a first heavy load dynamic seal and a second heavy load dynamic seal, the first heavy load dynamic seal and the second heavy load dynamic seal are symmetrically sleeved on the piston head.

[0015] Optionally, the guide belt further comprises a fourth guide belt, a fifth guide belt and a sixth guide belt sleeved on the piston head, the fourth guide belt is located on the side of the first heavy load dynamic seal away from the second heavy load dynamic seal, the fifth guide belt is located between the first heavy load dynamic seal and the second heavy load dynamic seal, and the sixth guide belt is located on the side of the second heavy load dynamic seal away from the first heavy load dynamic seal.

[0016] Optionally, the material of the dustproof ring is polyurethane.

[0017] Optionally, the material of the guide belt is C380, polyurethane or polytetrafluoroethylene.

[0018] Optionally, the material of the Glay ring is polytetrafluoroethylene.

[0019] Another purpose of the utility model is to provide a kitchen waste press to solve the problems of easy wear and tear, easy leakage and frequent replacement of the sealing structure of the horizontal oil cylinder.

[0020] As conceived above, the technical scheme adopted by the utility model is:

[0021] The utility model provides a kitchen waste press, comprising the horizontal oil cylinder sealing structure.

[0022] The utility model has the advantages of:

[0023] The horizontal oil cylinder sealing structure provided by the utility model, which comprises a cylinder body, a guide sleeve and a piston, the piston comprises a piston rod and a piston head connected with each other, the piston head is located in the cylinder body, and the guide sleeve is sleeved on the piston rod. The horizontal oil cylinder sealing structure further comprises a Y sealing ring and a Gley ring which are sleeved on the piston rod, and the guide sleeve is in sliding sealing cooperation with the piston rod through the Y sealing ring and the Gley ring. The horizontal oil cylinder sealing structure further comprises a guide belt, the guide belt comprises a first guide belt, a second guide belt and a third guide belt which are sleeved on the piston rod, the first guide belt is located on the side of the Y sealing ring away from the Gley ring, the second guide belt is located between the Y sealing ring and the Gley ring, and the third guide belt is located on the side of the Gley ring away from the Y sealing ring. The Y sealing ring serves as the first main sealing, the sealing lip is asymmetric, and the outer diameter interference fit can make the Y sealing ring more stable in the groove, the Gley ring serves as the second main sealing, has low friction and good positioning, is used in combination with the Y sealing ring, guarantees the pressure impact resistance, and is suitable for large horizontal oil cylinder reciprocating working conditions. In addition, the sealing lip of the Y sealing ring is Y-shaped, the Y-shaped opening angle can be increased when the Y sealing ring is subjected to high pressure, the greater the pressure, the greater the Y-shaped opening, generally, the angle increases by 1.5° when the pressure increases by 1 Mpa, and the wrapping property and pressure resistance are increased. When subjected to low pressure, the Y-shaped opening is in the original contraction state, the gap with the piston rod is increased, high-speed operation is smoother, high-pressure pressure retention is good, and the advantage of low-pressure speed is fast. The guide belt is arranged on the two sides of each main sealing, that is, the guide belt is also arranged between the two main sealings, so that the anti-bias load capacity is further improved, and the problem that the sealing structure is severely worn when the working condition is deflected is avoided. The horizontal oil cylinder sealing structure can solve the problems that the horizontal oil cylinder sealing is easy to wear, easy to leak and the sealing structure needs to be replaced frequently.

[0024] The kitchen waste presser provided by the utility model, which comprises the horizontal oil cylinder sealing structure, can solve the problems that the horizontal oil cylinder sealing is easy to wear, easy to leak and the sealing structure needs to be replaced frequently, and prolongs the service life of the kitchen waste presser. BRIEF DESCRIPTION OF DRAWINGS

[0025] Fig. 1 is the sectional view of the horizontal oil cylinder sealing structure provided by the utility model embodiment;

[0026] Fig. 2 is the sectional view of the guide sleeve sealing structure provided by the utility model embodiment;

[0027] Fig. 3 is the sectional view of the piston head sealing structure provided by the utility model embodiment.

[0028] In the drawings:

[0029] 10, cylinder body; 20, guide sleeve; 30, piston rod; 40, piston head;

[0030] 11, Y seal ring; 12, Gley ring; 13, first guide belt; 14, second guide belt; 15, third guide belt; 16, copper sleeve; 17, dustproof ring;

[0031] 21, first heavy dynamic seal; 22, second heavy dynamic seal; 23, fourth guide belt; 24, fifth guide belt; 25, sixth guide belt. DETAILED DESCRIPTION

[0032] In order to make the technical problems solved by the utility model, the technical scheme adopted and the technical effects reached more clear, the technical scheme of the utility model will be further explained below in combination with the drawings and through specific embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for the convenience of description, not all.

[0033] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0034] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0035] In the description of the embodiment, the terms "up", "down", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in description, and have no special meaning.

[0036] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0037] like Figs. 1 to 3 As shown, this embodiment provides a horizontal hydraulic cylinder sealing structure, including a cylinder body 10, a guide sleeve 20, and a piston. The piston includes a connected piston rod 30 and a piston head 40, with the piston head 40 located inside the cylinder body 10. The guide sleeve 20 is fitted onto the piston rod 30. The horizontal hydraulic cylinder sealing structure also includes a Y-seal ring 11 and a Glyd ring 12 fitted onto the piston rod 30. The guide sleeve 20 slides and seals with the piston rod 30 through the Y-seal ring 11 and the Glyd ring 12. The horizontal hydraulic cylinder sealing structure also includes guide bands, including a first guide band 13, a second guide band 14, and a third guide band 15 fitted onto the piston rod 30. The first guide band 13 is located on the side of the Y-seal ring 11 away from the Glyd ring 12, the second guide band 14 is located between the Y-seal ring 11 and the Glyd ring 12, and the third guide band 15 is located on the side of the Glyd ring 12 away from the Y-seal ring 11. Y-shaped sealing ring 11 serves as the first main seal. Its asymmetrical sealing flanges and interference fit on the outer diameter ensure stability within the groove. Glyd ring 12, the second main seal, features low friction and good positioning. Used in conjunction with Y-shaped sealing ring 11, it guarantees resistance to pressure shocks and is suitable for reciprocating applications in large horizontal hydraulic cylinders. Furthermore, the sealing lip of Y-shaped sealing ring 11 is Y-shaped. Under high pressure, the Y-shaped opening angle increases with oil filling; the higher the pressure, the wider the Y-shaped opening opens. Generally, the angle increases by 1.5° for every 1 MPa increase, enhancing encapsulation and pressure resistance. Under low pressure, the Y-shaped opening remains in its original contracted state, increasing the gap with the piston rod 30, resulting in smoother high-speed operation and effectively achieving the advantages of good high-pressure holding and fast low-pressure speed. Guide strips are provided on both sides of each main seal; the guide strips in the guide sleeve sealing structure are arranged at intervals, further improving resistance to off-center loads and preventing severe wear of the sealing structure under deflection conditions. This horizontal cylinder sealing structure can solve the problems of easy wear, easy leakage, and frequent replacement of the sealing structure in horizontal cylinders.

[0038] Optionally, the number of first guide strips 13 is N1, where 2 ≤ N1 ≤ 4. The number of second guide strips 14 is N2, where 2 ≤ N2 ≤ 4. The number of third guide strips 15 is N3, where 2 ≤ N3 ≤ 4. Given sufficient space in the sealed structure arrangement, too many guide strips will increase friction and rod wear, while too few guide strips will not provide effective guidance. Therefore, the preferred number of guide strips is 2 to 4.

[0039] Optionally, the material of the guide belt is C380. C380 is a fiber composite material composed of fine mesh plastic, special thermosetting polymer resin and lubricating additives, has the function of absorbing vibration, has excellent wear resistance and good dry running characteristics. In addition, the C380 fiber composite material does not contain groups such as ester groups, amide bonds and carboxyl groups which are easily attacked by acid and alkali, and can ensure the acid and alkali resistance effect of the horizontal oil cylinder sealing structure provided in the embodiment.

[0040] In other embodiments, the material of the guide belt can also be polyurethane or polytetrafluoroethylene.

[0041] Optionally, the material of the gasket 12 is polytetrafluoroethylene (PTFE). PTFE is commonly known as "plastic king", which is a high molecular compound formed by polymerization of tetrafluoroethylene, and has excellent chemical stability, corrosion resistance, sealing, high lubrication, electrical insulation and good aging resistance.

[0042] Further, the horizontal oil cylinder sealing structure further comprises a copper sleeve 16, which is clamped between the piston rod 30 and the guide sleeve 20 and located at one end of the piston rod 30 close to the piston head 40. The copper sleeve 16 is a consumable part, which is installed at the guide sleeve 20 of the cylinder head. Because the copper sleeve 16 is relatively soft in strength and rigidity compared with the cylinder body 10, even if the horizontal oil cylinder encounters extreme eccentric load working conditions, the copper sleeve 16 will be preferentially worn out, and the cylinder body 10 will not be damaged.

[0043] Optionally, the horizontal oil cylinder sealing structure further comprises a dust seal 17, which is clamped between the piston rod 30 and the guide sleeve 20 and located at one end of the piston rod 30 away from the piston head 40. The outer diameter of the dust seal 17 is in interference fit with the cylinder body 10, and the dust lip can effectively prevent dust and dirt from entering the system, while allowing residual oil film to return. In specific implementation, the lip of the dust seal 17 can be single-layer or double-layer.

[0044] Optionally, the material of the dust seal 17 is ECOPUR (polyurethane), which has a high temperature resistance generally between 120°C-150°C, while the working condition of the oil cylinder hydraulic oil is generally below 70°, which can ensure the high temperature resistance effect of the horizontal oil cylinder sealing structure provided in the embodiment.

[0045] Further, the horizontal oil cylinder sealing structure further comprises a first heavy load dynamic seal 21 and a second heavy load dynamic seal 22, which are symmetrically sleeved on the piston head 40. The heavy load dynamic seal is provided with two channels to ensure effective sealing during forward and backward movement. The first heavy load dynamic seal 21 and the second heavy load dynamic seal 22 are both Y-shaped ring seals, which are installed back to back to adapt to reciprocating motion conditions and prevent internal leakage between the rod cavity and the rodless cavity in the high pressure working condition of the oil cylinder.

[0046] Optionally, the guide belts further comprise a fourth guide belt 23, a fifth guide belt 24 and a sixth guide belt 25 sleeved on the outer periphery of the piston head 40, the fourth guide belt 23 is located on the side of the first heavy dynamic seal 21 away from the second heavy dynamic seal 22, the fifth guide belt 24 is located between the first heavy dynamic seal 21 and the second heavy dynamic seal 22, and the sixth guide belt 25 is located on the side of the second heavy dynamic seal 22 away from the first heavy dynamic seal 21. That is, the arrangement of the guide belts in the piston head sealing structure is also designed to be spaced, the capacity of resisting eccentric load is greatly enhanced, the horizontal heavy load can be better borne, and the wear of the sealing structure is reduced.

[0047] In the implementation, the number of the guide belts at the piston head 40 is not specifically required under the condition that the space of the piston head sealing structure is satisfied, and in general, because the bottom end of the oil cylinder is subjected to greater load, the number of the guide belts arranged at the bottom end of the oil cylinder can be greater than the number of the guide belts arranged at the head end of the oil cylinder.

[0048] The embodiment further provides a kitchen waste press, which comprises the horizontal oil cylinder sealing structure, and can solve the problems of easy wear, easy leakage and frequent replacement of the sealing structure of the horizontal oil cylinder, and prolong the service life of the kitchen waste press.

[0049] The above embodiments only illustrate the basic principles and characteristics of the kitchen waste press, and the kitchen waste press is not limited by the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of the kitchen waste press, and the changes and modifications all fall within the scope of the kitchen waste press. The protection scope of the kitchen waste press is defined by the appended claims and equivalents thereof.

Claims

1. A horizontal cylinder seal structure, characterized by comprising: The horizontal oil cylinder sealing structure comprises a cylinder (10), a guide sleeve (20) and a piston, the piston comprises a connected piston rod (30) and a piston head (40), the piston head (40) is located in the cylinder (10), and the guide sleeve (20) is sleeved on the piston rod (30); The horizontal oil cylinder sealing structure further comprises a Y sealing ring (11) and a Gley ring (12) sleeved on the piston rod (30), and the guide sleeve (20) is in sliding sealing cooperation with the piston rod (30) through the Y sealing ring (11) and the Gley ring (12). The horizontal oil cylinder sealing structure further comprises a guide belt, the guide belt comprises a first guide belt (13), a second guide belt (14) and a third guide belt (15) sleeved on the piston rod (30), the first guide belt (13) is located on the side of the Y sealing ring (11) away from the Gley ring (12), the second guide belt (14) is located between the Y sealing ring (11) and the Gley ring (12), and the third guide belt (15) is located on the side of the Gley ring (12) away from the Y sealing ring (11).

2. The horizontal ram seal as set forth in claim 1, wherein, The horizontal oil cylinder sealing structure further comprises a copper sleeve (16), the copper sleeve (16) is clamped between the piston rod (30) and the guide sleeve (20) and located at one end of the piston rod (30) close to the piston head (40).

3. The horizontal ram seal as defined in claim 1, wherein, The horizontal oil cylinder sealing structure further comprises a dustproof ring (17), the dustproof ring (17) is clamped between the piston rod (30) and the guide sleeve (20) and located at one end of the piston rod (30) away from the piston head (40).

4. The horizontal ram seal as defined in claim 1, wherein, The number of the first guide belt (13) is N1, 2≤N1≤4; and / or, The number of the second guide belt (14) is N2, 2≤N2≤4; and / or, The number of the third guide belt (15) is N3, 2≤N3≤4.

5. The horizontal ram seal as defined in claim 1, wherein, The horizontal oil cylinder sealing structure further comprises a first heavy load dynamic seal (21) and a second heavy load dynamic seal (22), and the first heavy load dynamic seal (21) and the second heavy load dynamic seal (22) are symmetrically sleeved on the piston head (40).

6. The horizontal ram seal as set forth in claim 5, wherein, The guide belt further comprises a fourth guide belt (23), a fifth guide belt (24) and a sixth guide belt (25) sleeved on the piston head (40), the fourth guide belt (23) is located on the side of the first heavy load dynamic seal (21) away from the second heavy load dynamic seal (22), the fifth guide belt (24) is located between the first heavy load dynamic seal (21) and the second heavy load dynamic seal (22), and the sixth guide belt (25) is located on the side of the second heavy load dynamic seal (22) away from the first heavy load dynamic seal (21).

7. The horizontal ram seal as defined in claim 3, wherein, The material of the dustproof ring (17) is polyurethane.

8. The horizontal ram cylinder seal arrangement of any one of claims 1 to 7, wherein, The material of the guide belt is C380, polyurethane or polytetrafluoroethylene.

9. The horizontal ram cylinder seal arrangement of any one of claims 1 to 7, wherein, The material of the Gley ring (12) is polytetrafluoroethylene.

10. A kitchen press, characterized in that The horizontal oil cylinder sealing structure of any one of claims 1 to 9. The horizontal oil cylinder sealing structure of any one of claims 1 to 9.

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