Novel dust cover for pull rod hydraulic cylinder

Abstract

The utility model discloses a novel pull rod hydraulic cylinder dust cover which comprises a sealing upper cover, a telescopic sleeve and a sealing base, grooves are formed in the inner side of the sealing upper cover and the inner side of the sealing base, sealing rings are placed in the grooves, the sealing upper cover and the sealing base are connected with the telescopic sleeve in a clamped mode through a fixing ring, and grooves are formed in the inner side of the fixing ring. The sealing upper cover is fixed on a connector at the top end of a piston rod of the pull rod hydraulic cylinder through a screw, and the sealing base is fixed on a front cover of the hydraulic rod through a screw. The pull rod hydraulic cylinder can play a role in isolating and blocking pollutants, provides necessary protection for the hydraulic cylinder, influences fixation of the pull rod hydraulic cylinder as little as possible, and ensures that the pull rod hydraulic cylinder can play a role stably and continuously. The novel dust cover for the pull rod hydraulic cylinder has the remarkable advantage of being convenient to replace, can easily adapt to pull rod hydraulic cylinders with piston rods of various lengths, and shows great universality and flexibility.

Description

Technical Field

[0001] The utility model relates to the field of hydraulic cylinders, in particular to a hydraulic pull rod pull cylinder dustproof device, which is suitable for the normal use of the pull rod hydraulic cylinder under harsh working conditions. Technical Background

[0002] Tie rod hydraulic cylinders are widely used in various industrial environments and mechanical equipment. However, these hydraulic cylinders are often exposed to dust, impurities, particles, etc. during operation. Without proper protection measures, these contaminants may enter the hydraulic cylinder, causing wear and damage to key components such as seals and piston rods, affecting the performance, accuracy and service life of the hydraulic cylinder.

[0003] In addition, harsh working environments such as dust, humidity, and corrosion also pose a threat to the normal operation of hydraulic cylinders. In order to ensure that hydraulic cylinders can work reliably under relatively harsh conditions, extend their service life, and reduce the probability of failure, it is necessary to use a tie rod hydraulic cylinder dust cover to ensure its normal operation. However, the traditional tie rod hydraulic cylinder dust cover is not suitable for use or needs to be fixed on the tie rod, which affects the fixation and use of the tie rod hydraulic rod. Therefore, a new tie rod hydraulic cylinder dust cover is designed.

[0004] It can isolate and block pollutants, provide necessary protection for the hydraulic cylinder, and minimize the impact on the fixation of the tie rod hydraulic cylinder to ensure that it can function stably and continuously. At the same time, in the current market environment, most of the tie rod hydraulic cylinder dust covers are customized according to specific needs. This means that every time a dust cover is needed, it has to go through a more cumbersome customization process, including size measurement, special design, etc., which takes time and effort. The new tie rod hydraulic cylinder dust cover has the significant advantage of being easy to replace. It is no longer as complicated and limited as the traditional custom dust cover. Normally, different lengths of piston rods will bring certain challenges to the adaptation of the dust cover, but this new dust cover can easily adapt to tie rod hydraulic cylinders with various lengths of piston rods, showing great versatility and flexibility. Whether the piston rod is a shorter specification or a longer type, it can fit tightly and effectively play a protective role such as dust and dirt. Summary of the invention

[0005] The utility model provides a new type of pull rod hydraulic cylinder dust cover, which has a good effect of isolating and blocking pollutants, and has good adaptability to hydraulic cylinders with piston rods of different lengths, and is easy to replace and repair. The utility model achieves the above purpose through the following technical solutions:

[0006] A new type of dust cover for a pull rod hydraulic cylinder comprises a sealing upper cover, a telescopic sleeve and a sealing base. The sealing upper cover and the sealing base are both provided with grooves on the outer sides, and sealing rings are placed in the grooves. The sealing upper cover and the telescopic sleeve are clamped and connected by a fixing ring 1, and the sealing base and the telescopic sleeve are clamped and connected by a fixing ring 2. There are grooves on the inner sides of the fixing ring 1 and the fixing ring 2. The sealing upper cover is fixed to the joint at the top end of the piston rod of the pull rod hydraulic cylinder by screws, and the sealing base is fixed to the front cover of the hydraulic rod by screws.

[0007] The telescopic sleeve can be made of a variety of materials including rubber, stainless steel, etc.

[0008] The upper and lower connecting ends of the telescopic sleeve are provided with grooves for engaging with the sealing ring placed inside the fixing ring.

[0009] The novel pull rod hydraulic cylinder dust cover is characterized in that the fixing ring 1 and the fixing ring 2 are semicircular in design, and the left and right parts are fixedly connected by screws.

[0010] There are four openings on the sealing upper cover and the sealing base, and the openings are processed with internal thread tapping.

[0011] The new type of tie rod hydraulic cylinder dust cover has a sealing base on the lower side, and a sealing ring is placed inside the sealing base to fit with the front cover of the tie rod hydraulic cylinder. Under the action of pressure, the sealing ring is deformed to fill the groove of the sealing base, and the sealing base is fixed to the front cover of the hydraulic rod by screws. The lower connecting end of the telescopic sleeve is connected to the sealing base. There is a sealing ring in the groove of the lower connecting end of the telescopic sleeve, and a fixing ring 1 and a fixing ring 2 are fixed to the outside by screws. The sealing upper cover has a sealing ring placed inside the sealing base to fit with the joint at the top end of the piston rod of the tie rod hydraulic cylinder, and the sealing upper cover is fixed to the joint at the top end of the piston rod of the tie rod hydraulic cylinder by screws. There is a sealing ring in the groove of the upper connecting end of the telescopic sleeve, and a fixing ring is fixed to the outside by screws. The sealing upper cover and the sealing base are circular or rectangular.

[0012] The beneficial effects of the utility model are: isolating and blocking pollutants, providing necessary protection for the hydraulic cylinder, while minimizing the impact on the fixation of the tie rod hydraulic cylinder, ensuring that it can function stably and continuously. At the same time, in the current market environment, the dust cover of the tie rod hydraulic cylinder is mostly customized according to specific needs. This means that every time a dust cover is needed, it has to go through a relatively cumbersome customization process, including size measurement, special design, etc., which consumes time and energy. The new dust cover of the tie rod hydraulic cylinder has the significant advantage of being easy to replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Explosion diagram of the dust cover of the new tie rod hydraulic cylinder

[0014] Figure 2 Axonometric drawing of the dust cover of the new tie rod hydraulic cylinder

[0015] Figure 3 Diagram of tie rod hydraulic cylinder

[0016] Figure 4 The effect picture of the dust cover of the new tie rod hydraulic cylinder is completed

[0017] Markings in the figure: 1. Sealing upper cover, 2. Telescopic sleeve, 3. Sealing base, 4. Fixed ring 1, 5, 6, 7, 8. Sealing rings of different types, 9. Fixed ring 2, 10. Front cover, 11. Joint, 12. Piston rod, 13 rear cover, 14. Cylinder, 15 pull rod. DETAILED DESCRIPTION

[0018] The utility model patent is further described below in conjunction with the accompanying drawings:

[0019] A new type of dust cover for a tie rod hydraulic cylinder comprises a sealing upper cover 1, a telescopic sleeve 2 and a sealing base 3; the sealing upper cover 1 and the sealing base 3 are both provided with grooves on the outer sides, sealing rings are placed in the grooves, the sealing upper cover 1 and the telescopic sleeve 2 are clamped and connected by a fixing ring 4, the sealing base 3 and the telescopic sleeve 2 are clamped and connected by a fixing ring 9, the fixing rings 1 4 and 2 are provided with grooves on the inner sides, the sealing upper cover 1 is fixed to the joint 11 at the top end of the piston rod 12 of the tie rod hydraulic cylinder by screws, and the sealing base 3 is fixed to the front cover 10 of the hydraulic rod by screws.

[0020] The telescopic sleeve 2 has flange-shaped protrusions at both ends to improve the stability of the telescopic sleeve in the extended state.

[0021] The upper and lower connecting ends of the telescopic sleeve 2 are provided with grooves for engaging with the sealing ring placed inside the fixing ring.

[0022] The fixing ring 1 4 and the fixing ring 2 9 are semicircular in design, and the left and right parts are fixedly connected by screws.

[0023] There are four openings on the sealing upper cover 1 and the sealing base 3, and the openings are tapped with internal threads.

[0024] The opening on the panel of the sealing base 3 is aligned with the opening of the front cover 10 originally connected to the pull rod 15 of the pull rod hydraulic rod, and the internal thread model is the same.

[0025] The new type of tie rod hydraulic cylinder dust cover has a sealing base 3 with a sealing ring 5 placed inside thereof to fit with the front cover 10 of the tie rod hydraulic cylinder. The sealing ring 5 is deformed under the action of pressure and fills the groove of the sealing base 3, and the sealing base 3 is fixed to the front cover 10 of the hydraulic rod by screws. The lower connecting end of the telescopic sleeve 2 is connected to the sealing base 3. There is a sealing ring 6 in the groove of the lower connecting end of the telescopic sleeve 2, and a fixing ring 9 is fixed to the outside by screws. The sealing upper cover 1 has a sealing ring 7 placed inside thereof to fit with the joint 11 at the top of the piston rod 12 of the tie rod hydraulic cylinder, and the sealing upper cover 1 is fixed to the joint 11 at the top of the piston rod 12 of the tie rod hydraulic cylinder by screws. There is a sealing ring 8 in the groove of the upper connecting end of the telescopic sleeve 2, and a fixing ring 4 is fixed to the outside by screws. When the tie rod hydraulic cylinder is working, the sealing base 3 is fixed on the front cover 10 of the tie rod hydraulic cylinder, and the sealing upper cover 1 is fixed on the joint 11 at the top of the tie rod hydraulic cylinder piston rod 12, and moves with the movement of the joint 11 at the top of the tie rod hydraulic cylinder piston rod 12. The telescopic sleeve 2 also telescopes with the tie rod hydraulic cylinder piston rod 12, so that the tie rod hydraulic cylinder piston rod 12 is isolated from the external environment, achieving a protective effect.

Claims

1. A novel dust cover for a pull rod hydraulic cylinder, comprising a sealing upper cover (1), a telescopic sleeve (2), and a sealing base (3); characterized in that: The outer sides of the sealing upper cover (1) and the sealing base (3) are both provided with grooves, and sealing rings are placed in the grooves. The sealing upper cover (1) and the telescopic sleeve (2) are clamped and connected by a fixing ring 1 (4), and the sealing base (3) and the telescopic sleeve (2) are clamped and connected by a fixing ring 2 (9). The inner sides of the fixing ring 1 (4) and the fixing ring 2 (9) are provided with grooves. The sealing upper cover (1) is fixed to the joint (11) at the top end of the piston rod (12) of the pull rod hydraulic cylinder by screws, and the sealing base (3) is fixed to the front cover (10) of the hydraulic rod by screws.

2. The new type of tie rod hydraulic cylinder dust cover according to claim 1 is characterized in that: The telescopic sleeve (2) has flange-like protrusions at both ends, which improve the stability of the telescopic sleeve in the extended state.

3. The new type of tie rod hydraulic cylinder dust cover according to claim 2 is characterized in that: The upper and lower connecting ends of the telescopic sleeve (2) are provided with grooves for engaging with a sealing ring placed inside the fixing ring.

4. The new type of tie rod hydraulic cylinder dust cover according to claim 1 is characterized in that: The fixing ring 1 (4) and the fixing ring 2 (9) are semicircular in design, and the left and right parts are fixedly connected by screws.

5. The new type of tie rod hydraulic cylinder dust cover according to claim 1 is characterized in that: The sealing upper cover (1) and the sealing base (3) are provided with four openings, and the openings are tapped with internal threads.

6. The new type of tie rod hydraulic cylinder dust cover according to claim 1 is characterized in that: The sealing upper cover (1) and the sealing base (3) are circular or rectangular.

Images