Oil cylinder for operation of hydraulic machine

Abstract

The utility model discloses an oil cylinder for operation of a hydraulic machine, which relates to the technical field of oil cylinders and comprises a cylinder body, a bottom cylinder cover and a top cylinder cover are respectively arranged at two ends of the cylinder body, a mounting ring is attached to the top cylinder cover through a clamping component, a dust cover is fixedly arranged on the upper surface of the mounting ring, and the clamping component comprises a slot. And the four inserting grooves are fixedly formed in the outer circle of the mounting ring, the four inserting grooves are annularly and evenly distributed, inserting blocks are clamped in the inserting grooves, a fixing base is fixedly arranged in the middle of the side face of the top cylinder cover, and a sliding rod is slidably arranged in the fixing base through an auxiliary assembly. According to the utility model, the dust cover can be quickly mounted and dismounted only by pulling the lifting frame upwards, and the problems that the dust cover on the oil cylinder is usually mounted and fixed with the oil cylinder in a bolt fastening manner when the existing oil cylinder is used, the operation is troublesome, time-consuming and labor-consuming, and the mounting and dismounting efficiency is lower are solved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, and in particular to a hydraulic cylinder for operating a hydraulic press. Background Technology

[0002] A hydraulic press is a machine that uses liquid as its working medium and is made according to Pascal's principle to transfer energy to achieve various processes.

[0003] Hydraulic presses have very high requirements for the quality of hydraulic fluid, and the working environment of hydraulic presses is generally very harsh, which can easily cause contamination of the hydraulic fluid. Therefore, dust protection measures need to be taken for hydraulic presses. Telescopic dust covers are usually used to protect the hydraulic cylinders from dust.

[0004] However, in the use of existing hydraulic cylinders, the dust cover is usually installed and fixed to the cylinder by bolts, which is cumbersome, time-consuming and labor-intensive, and the loading and unloading efficiency is relatively low. To address this, we propose a hydraulic cylinder for hydraulic press operation to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Therefore, the purpose of this utility model is to provide a hydraulic cylinder for operating a hydraulic press, which can solve the problem that the dust cover on the existing hydraulic cylinder is usually installed and fixed to the hydraulic cylinder by bolt fastening, which is troublesome, time-consuming and labor-intensive, and has low loading and unloading efficiency.

[0007] To solve the above technical problems, this utility model provides a hydraulic cylinder for operating a hydraulic press, which adopts the following technical solution: it includes a cylinder body, and a bottom cylinder cover and a top cylinder cover are respectively provided at both ends of the cylinder body. An installation ring is attached to the top cylinder cover by a snap-fit ​​assembly, and a dust cover is fixedly provided on the upper surface of the installation ring.

[0008] The snap-fit ​​assembly includes a slot, which is fixedly opened on the outer ring of the mounting ring. Four slots are evenly distributed in a ring. A plug is snapped into the inside of the slot. A fixing seat is fixedly installed in the middle of the side of the top cylinder head. A slide rod is slidably installed inside the fixing seat through an auxiliary component. A first hinge seat is fixedly installed at the end of the slide rod that extends out of the top of the fixing seat. A second hinge seat is fixedly installed on the side of the plug near the slide rod. A movable rod is rotatably installed between the first hinge seat and the second hinge seat.

[0009] A limit component is provided between the insert block and the fixing seat.

[0010] Preferably, the limiting component includes a guide rail, which is fixedly disposed on the side of the fixing seat. There are two guide rails, which are symmetrically distributed about the center line of the fixing seat. A T-shaped groove is fixedly disposed inside the guide rail, and a T-shaped rod is slidably disposed inside the T-shaped groove. The upper end of the T-shaped rod is fixedly connected to the insert block.

[0011] Preferably, a locking block is fixedly provided on the outer ring of the mounting ring, the locking block is located between the two guide rails, and the locking block is movably fitted with the two guide rails.

[0012] Preferably, a rubber pad is fixedly provided on the lower surface of the mounting ring, and one end of the bottom of the insert block is provided with an inclined structure.

[0013] Preferably, the auxiliary component includes a lifting groove, which is fixedly opened inside the fixed base. A lifting frame is slidably arranged inside the lifting groove. One end of the sliding rod extending into the lifting groove is fixedly connected to the lifting frame. A sleeve is fixedly arranged at the bottom of the inner side of the lifting groove. A telescopic rod is slidably arranged inside the sleeve. The upper end of the telescopic rod is fixedly connected to the lifting frame. A spring is fixedly connected between the lifting frame and the end of the lifting groove. The spring is movably sleeved on the outer ring of the sleeve and the telescopic rod.

[0014] Preferably, in the initial state, the lower surface of the lifting frame and the upper surface of the sleeve are in movable contact.

[0015] Preferably, the lifting frame has a cubic frame structure.

[0016] In summary, this utility model has at least one of the following beneficial effects:

[0017] This utility model allows for quick installation and removal of the dust cover simply by pulling the lifting frame upwards. It solves the problem that existing oil cylinders typically use bolts to fasten the dust cover to the cylinder, which is cumbersome, time-consuming, labor-intensive, and inefficient.

[0018] By installing the auxiliary components, when installing the dust cover, the lifting frame is lifted up so that the insert block is in the initial position. After the installation ring is positioned, the lifting frame is released, the spring returns to its elasticity, and the lifting frame moves downward, which in turn moves the four fixed seats downward simultaneously, so that the four insert blocks are inserted into the four slots simultaneously, thereby synchronously limiting and fixing the installation ring around its perimeter, and improving the stability of the installation ring.

[0019] By installing the limiting component, the mounting ring is placed on the top cylinder head, and the locking block is locked between two corresponding guide rails, quickly completing the positioning and placement of the mounting ring. At the same time, by installing the T-slot and T-rod, the displacement trajectory of the insert is limited, ensuring that the insert moves stably on the guide rail, so that the insert is stably inserted into the slot, thereby firmly fixing the mounting ring on the top cylinder head. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of a hydraulic cylinder for operating a hydraulic press according to the present invention;

[0022] Figure 2 For the present utility model Figure 1 Enlarged schematic diagram of the structure at point A;

[0023] Figure 3 This is a schematic diagram of the lifting frame and fixed base structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the mounting ring and locking block structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the auxiliary component structure of this utility model.

[0026] Explanation of reference numerals in the attached drawings: 1. Cylinder block; 2. Bottom cylinder head; 3. Top cylinder head; 4. Mounting ring; 5. Dust cover; 6. Rubber pad; 7. Slot; 8. Insert block; 9. Fixed seat; 10. Slide rod; 11. Movable rod; 12. Guide rail; 13. Locking block; 14. Lifting groove; 15. Sleeve; 16. Telescopic rod; 17. Lifting frame; 18. Spring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-5This utility model provides an embodiment of a hydraulic cylinder for operating a hydraulic press, including a cylinder body 1. A bottom cylinder cover 2 and a top cylinder cover 3 are respectively provided at both ends of the cylinder body 1. An installation ring 4 is fitted onto the top cylinder cover 3 via a snap-fit ​​assembly. A dust cover 5 is fixedly provided on the upper surface of the installation ring 4. The snap-fit ​​assembly includes slots 7, which are fixedly opened at the outer ring of the installation ring 4. Four slots 7 are evenly distributed in a ring. An insert block 8 is snapped into the inside of the slot 7. A fixed seat 9 is fixedly provided in the middle of the side of the top cylinder cover 3. A sliding rod 10 is slidably provided inside the fixed seat 9 via an auxiliary assembly. A first hinge seat is fixedly provided at one end of the sliding rod 10 extending from the top of the fixed seat 9. A second hinge seat is fixedly provided on the side of the insert block 8 near the sliding rod 10. A movable rod 11 is rotatably provided between the first hinge seat and the second hinge seat.

[0029] Furthermore, a limiting component is provided between the insert block 8 and the fixed base 9. The limiting component includes a guide rail 12, which is fixedly installed on the side of the fixed base 9. There are two guide rails 12, which are symmetrically distributed about the center line of the fixed base 9. A T-shaped groove is fixedly installed inside the guide rail 12, and a T-shaped rod is slidably installed inside the T-shaped groove. The upper end of the T-shaped rod is fixedly connected to the insert block 8. A locking block 13 is fixedly installed on the outer ring of the mounting ring 4. The locking block 13 is located between the two guide rails 12, and the locking block 13 is movably fitted with both guide rails 12.

[0030] In use, the mounting ring 4 is placed on the top cylinder head 3, and the locking block 13 is locked between two corresponding guide rails 12, quickly completing the positioning of the mounting ring 4. At this time, the auxiliary components simultaneously push the four fixed seats 9 downward. Under the linkage of the movable rod 11, the four inserts 8 are simultaneously inserted into the four slots 7. Through the installation of the T-slot and T-rod, the displacement trajectory of the inserts 8 is limited, ensuring that the inserts 8 move stably on the guide rails 12, so that the inserts 8 are stably inserted into the slots 7, thereby firmly fixing the mounting ring 4 on the top cylinder head 3.

[0031] Furthermore, the auxiliary components include a lifting groove 14, which is fixedly opened inside the fixed base 9. A lifting frame 17 is slidably arranged inside the lifting groove 14. One end of the slide rod 10 extending into the lifting groove 14 is fixedly connected to the lifting frame 17. A sleeve 15 is fixedly arranged at the bottom of the inner side of the lifting groove 14. A telescopic rod 16 is slidably arranged inside the sleeve 15. The upper end of the telescopic rod 16 is fixedly connected to the lifting frame 17. A spring 18 is fixedly connected between the lifting frame 17 and the end of the lifting groove 14. The spring 18 is movably sleeved on the outer ring of the sleeve 15 and the telescopic rod 16. The lifting frame 17 has a cubic frame structure.

[0032] Specifically, in the initial state, the lower surface of the lifting frame 17 and the upper surface of the sleeve 15 are in contact, and the spring 18 is in a naturally contracted state. When the dust cover 5 needs to be installed, the lifting frame 17 is lifted upward so that the insert 8 is in the initial position. After the mounting ring 4 is positioned, the lifting frame 17 is released, the spring 18 returns to its elasticity, and the lifting frame 17 is moved downward. This, in turn, moves the four fixed seats 9 downward, so that the four inserts 8 are inserted into the four slots 7 simultaneously. When the dust cover 5 needs to be removed, the operation is reversed. Therefore, this utility model only requires pulling the lifting frame 17 upward to quickly complete the installation and removal of the dust cover 5. This solves the problem that the dust cover 5 on the existing oil cylinder is usually installed and fixed to the oil cylinder by bolt fastening, which is troublesome, time-consuming and labor-intensive, and has low installation and removal efficiency.

[0033] Furthermore, a rubber pad 6 is fixedly provided on the lower surface of the mounting ring 4, and one end of the bottom of the insert block 8 is set as a bevel structure. With this setting, when the insert block 8 is inserted into the interior of the slot 7, the bevel will slowly press the mounting ring 4 down, apply pressure to the rubber pad 6, thereby improving the sealing between the mounting ring 4 and the top cylinder head 3, and preventing dust from entering the interior of the dust cover 5.

[0034] Working principle: When the dust cover 5 needs to be installed during use, the lifting frame 17 is lifted up so that the insert 8 is in the initial position. Then, the mounting ring 4 is placed on the top cylinder head 3, and the locking block 13 is locked between the two corresponding guide rails 12, quickly completing the positioning of the mounting ring 4. The lifting frame 17 is then released, the spring 18 returns to its elasticity, and the lifting frame 17 is moved downward, which in turn moves the four fixed seats 9 downward simultaneously, so that the four inserts 8 are inserted into the four slots 7 simultaneously, thereby synchronously limiting and fixing the mounting ring 4 around its perimeter. When the dust cover 5 needs to be removed, the operation is reversed.

[0035] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A hydraulic cylinder for operating a hydraulic press, comprising a cylinder body (1), characterized in that: The cylinder body (1) is provided with a bottom cylinder cover (2) and a top cylinder cover (3) at both ends respectively. A mounting ring (4) is attached to the top cylinder cover (3) by a snap-fit ​​assembly. A dust cover (5) is fixedly provided on the upper surface of the mounting ring (4). The snap-fit ​​assembly includes a slot (7), which is fixedly opened on the outer ring of the mounting ring (4). There are four slots (7) evenly distributed in a ring. A plug (8) is snapped into the inside of the slot (7). A fixed seat (9) is fixedly provided in the middle of the side of the top cylinder head (3). A slide rod (10) is slidably provided inside the fixed seat (9) through an auxiliary component. A first hinge seat is fixedly provided at one end of the slide rod (10) that extends out of the top of the fixed seat (9). A second hinge seat is fixedly provided on the side of the plug (8) near the slide rod (10). A movable rod (11) is rotatably provided between the first hinge seat and the second hinge seat. A limit assembly is provided between the insert (8) and the fixing seat (9).

2. The hydraulic cylinder for operating a hydraulic press according to claim 1, characterized in that: The limiting component includes a guide rail (12), which is fixedly disposed on the side of the fixed seat (9). There are two guide rails (12), which are symmetrically distributed about the center line of the fixed seat (9). A T-shaped groove is fixedly disposed inside the guide rail (12), and a T-shaped rod is slidably disposed inside the T-shaped groove. The upper end of the T-shaped rod is fixedly connected to the insert block (8).

3. A hydraulic cylinder for operating a hydraulic press according to claim 2, characterized in that: A locking block (13) is fixedly provided on the outer ring of the mounting ring (4). The locking block (13) is located between the two guide rails (12), and the locking block (13) is in contact with both guide rails (12).

4. A hydraulic cylinder for operating a hydraulic press according to claim 3, characterized in that: A rubber pad (6) is fixedly provided on the lower surface of the mounting ring (4), and one end of the bottom of the insert (8) is provided as a sloping structure.

5. A hydraulic cylinder for operating a hydraulic press according to claim 1, characterized in that: The auxiliary components include a lifting groove (14), which is fixedly opened inside the fixed base (9). A lifting frame (17) is slidably arranged inside the lifting groove (14). One end of the sliding rod (10) extending into the lifting groove (14) is fixedly connected to the lifting frame (17). A sleeve (15) is fixedly arranged at the bottom of the inner side of the lifting groove (14). A telescopic rod (16) is slidably arranged inside the sleeve (15). The upper end of the telescopic rod (16) is fixedly connected to the lifting frame (17). A spring (18) is fixedly connected between the end of the lifting frame (17) and the lifting groove (14). The spring (18) is movably sleeved on the outer ring of the sleeve (15) and the telescopic rod (16).

6. A hydraulic cylinder for operating a hydraulic press according to claim 5, characterized in that: In the initial state, the lower surface of the lifting frame (17) and the upper surface of the sleeve (15) are in contact.

7. A hydraulic cylinder for operating a hydraulic press according to claim 6, characterized in that: The lifting frame (17) has a cubic frame structure.

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