Hydraulic oil cylinder

Abstract

The utility model discloses a hydraulic oil cylinder which comprises a cylinder body, an upper support and a lower support are sequentially arranged at the bottom end of the cylinder body, the upper support is fixedly connected with the cylinder body, a mounting plate is arranged at the bottom end of the lower support, a mounting hole is formed in the mounting plate, a ball core is arranged between the upper support and the lower support, and the lower support is fixedly connected with the ball core. A fixing stud for tensioning and fixing the upper support is arranged on the mounting plate; at least two pairs of fixing studs are arranged around the lower support, each fixing stud is sleeved with a fixing nut, sleeve blocks are arranged on the side wall of the upper support, the number of the sleeve blocks is equal to that of the fixing studs, the sleeve blocks are aligned with the fixing studs, and the sleeve blocks are matched with the fixing studs in a sleeved mode. The spherical supporting and horizontal supporting device has two mounting and supporting modes of spherical supporting and horizontal supporting, has an adaptive adjusting function in the unbalance loading direction, is flexible to mount and can be adaptive to different working environments.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic oil cylinders, in particular to a hydraulic oil cylinder. Background Art

[0002] A hydraulic cylinder, or simply a cylinder, is a hydraulic actuator that converts hydraulic energy into mechanical energy, capable of performing linear reciprocating or oscillating motion. Its basic components include a cylinder barrel and head, a piston and rod, a seal, a buffer, and an exhaust system. Due to their simple structure, reliable operation, and high load-bearing capacity, hydraulic cylinders are widely used in a variety of fields, including construction machinery, metallurgical equipment, the automotive industry, mining equipment, agricultural machinery, and aerospace.

[0003] At present, the existing hydraulic cylinders on the market generally adopt the support and fixing method of flat supports or ball supports. The installation method is single, and different working environments require matching different types of hydraulic cylinders, which is inconvenient for installation and management. Therefore, this application proposes a hydraulic cylinder to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a hydraulic cylinder with two installation support modes: spherical support and horizontal support, and has an adaptive adjustment function in the direction of eccentric load, which is flexible to install and can adapt to different working environments.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A hydraulic cylinder includes a cylinder body, an upper support and a lower support are sequentially provided at the bottom end of the cylinder body, the upper support is fixedly connected to the cylinder body, a mounting plate is provided at the bottom end of the lower support, a mounting hole is opened on the mounting plate, a ball core is provided between the upper support and the lower support, and a fixing stud for tightening and fixing the upper support is provided on the mounting plate.

[0007] Preferably, at least two pairs of fixing studs are arranged around the lower support, each fixing stud is sleeved with a fixing nut, and the side wall of the upper support is provided with sleeve blocks equal in number to and aligned with the fixing studs, and the sleeve blocks are sleeved and fitted with the fixing studs.

[0008] Preferably, the bottom end of the fixing stud is threadedly connected to the mounting plate, the circumferential surface of the upper support is provided with a boss for the sleeve to abut against, and the sleeve is provided with a shaft on the side facing the boss, and the shaft is movably plugged into the boss.

[0009] Preferably, ear plates are provided on both sides of the sleeve block, and connecting screws that are threadedly plugged into the boss are passed through the ear plates.

[0010] Preferably, the axis of the shaft and the center of the ball core are located on the same horizontal plane.

[0011] Preferably, an adaption groove is provided at the bottom of the upper support, a lining plate is provided on the top wall of the adaption groove, the top of the ball core is embedded in the adaption groove and abuts against the lining plate, a convex seat is provided at the top of the lower support surrounding the ball core, and a buckle plate that is buckled with the convex seat is provided at the bottom of the upper support, and there is a gap between the convex seat and the buckle plate.

[0012] Preferably, the cylinder body is equipped with a safety valve, a plurality of lifting rings are provided on the top of the outer wall of the cylinder body, and a sealing ring is provided on the top surface of the cylinder body. The sealing ring includes a steel ring threadedly embedded in the top surface of the cylinder body and a sealing rubber ring fixedly embedded in the steel ring. The sealing rubber ring is sealingly connected to the telescopic rod of the cylinder body, and a plurality of protrusions are provided on the upper end surface of the steel ring.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] The utility model enables the cylinder body to withstand lateral load without damaging the oil cylinder through the ball core arranged between the upper support and the lower support, can adapt to the working environment, and is more durable.

[0015] The utility model fixes multiple sleeve blocks on the upper support by tightening the connecting screws, passes the fixing studs through the sleeve blocks and is threadedly connected to the mounting plate, and uses the fixing nuts to tighten the sleeve blocks and the mounting plate. Thus, the upper support and the mounting plate are tightened and fixed. After the mounting plate is fixed to the installation position, the cylinder body can be stably supported.

[0016] The utility model inserts the shafts on the two symmetrical sleeve blocks into the bosses on the side walls of the upper support, and then penetrates the sleeve blocks and cooperates with the fixing nuts to tighten the sleeve blocks and the mounting plate. In addition, the structural design of the axis of the shaft and the center of the ball core are located on the same horizontal plane. Therefore, the eccentric load direction of the cylinder body can be adaptively adjusted, and the utility model has high adaptability.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic structural diagram of the upper support and the lower support of the utility model;

[0020] Figure 3 It is a cross-sectional view of the upper support and the lower support of the utility model;

[0021] Figure 4 This is a schematic structural diagram of the sealing ring of the utility model;

[0022] Figure 5This is a structural diagram of the fixing stud and sleeve block of the utility model.

[0023] In the figure: 1. Cylinder body; 2. Upper support; 3. Lower support; 4. Mounting plate; 5. Fixing stud; 6. Mounting hole; 7. Safety valve; 8. Lifting ring; 9. Sealing ring; 10. Bushing; 11. Boss; 12. Ear plate; 13. Connecting screw; 14. Fixing nut; 15. Ball core; 16. Adapter groove; 17. Boss; 18. Buckle plate; 19. Lining plate; 20. Steel ring; 21. Sealing rubber ring; 22. Bump; 23. Shaft. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention. The following describes various embodiments of the present invention in detail with reference to the accompanying drawings.

[0025] Example

[0026] See also Figures 1 to 5 , the utility model preferably provides a technical solution:

[0027] A hydraulic cylinder includes a cylinder body 1, an upper support 2 and a lower support 3 are sequentially provided at the bottom end of the cylinder body 1, the upper support 2 is fixedly connected to the cylinder body 1, a mounting plate 4 is provided at the bottom end of the lower support 3, a mounting hole 6 is opened on the mounting plate 4, a ball core 15 is provided between the upper support 2 and the lower support 3, and the ball core 15 provided between the upper support 2 and the lower support 3 enables the cylinder body 1 to withstand lateral loads without damaging the cylinder, can adapt to different working environments, and is more durable.

[0028] In this embodiment, an adaption groove 16 is provided at the bottom of the upper support 2, and a lining plate 19 is provided on the top wall of the adaption groove 16. The top of the core 15 is embedded in the adaption groove 16 and abuts against the lining plate 19. A boss 17 is provided at the top of the lower support 3 around the core 15, and a buckle plate 18 is provided at the bottom of the upper support 2 to engage with the boss 17, and there is a gap between the boss 17 and the buckle plate 18.

[0029] In a further embodiment, the mounting plate 4 is provided with fixing studs 5 for tightening and securing the upper support 2. At least two pairs of fixing studs 5 are provided around the lower support 3, and each fixing stud 5 is sleeved with a fixing nut 14. The sidewalls of the upper support 2 are provided with sleeve blocks 10, which are equal in number to and aligned with the fixing studs 5 and sleeved with the fixing studs 5. The bottom ends of the fixing studs 5 are threadedly connected to the mounting plate 4. The circumferential surface of the upper support 2 is provided with bosses 11 for the sleeve blocks 10 to abut against. Lug plates 12 are provided on both sides of the sleeve blocks 10, and connecting screws 13 are threadedly inserted into the bosses 11. Tighten the connecting screws 13 to fix multiple sleeves 10 on the upper support 2, pass the fixing studs 5 through the sleeves 10 and thread them onto the mounting plate 4, and use the fixing nuts 14 to tighten the sleeves 10 and the mounting plate 4. In this way, the upper support 2 and the mounting plate 4 are tightened and fixed. After the mounting plate 4 is fixed at the installation position, it can provide stable support for the cylinder body 1.

[0030] In a further embodiment, a shaft rod 23 is provided on one side of the sleeve block 10 facing the boss 11, and the shaft rod 23 is movably connected to the boss 11. The axis of the shaft rod 23 and the center of the ball core 15 are located on the same horizontal plane. Through this structural design, the shaft rods 23 on the two symmetrical sleeve blocks 10 are inserted into the boss 11 on the side wall of the upper support 2, and then the fixing studs 5 are passed through the sleeve block 10 to cooperate with the fixing nuts 14 to tighten the sleeve block 10 and the mounting plate 4, so that the unbalanced load direction of the cylinder body 1 can be adaptively adjusted.

[0031] In a further embodiment, the cylinder body 1 is equipped with a safety valve 7 to prevent the cylinder body 1 from overpressure. A plurality of lifting rings 8 are provided on the top of the outer wall of the cylinder body 1 to facilitate the installation and transportation of the cylinder body 1. A sealing ring 9 is provided on the top surface of the cylinder body 1. The sealing ring 9 includes a steel ring 20 threadedly embedded in the top surface of the cylinder body 1 and a sealing rubber ring 21 fixedly embedded in the steel ring 20. The sealing rubber ring 21 is sealingly connected to the telescopic rod of the cylinder body 1. A plurality of protrusions 22 are provided on the upper end surface of the steel ring 20 to prevent impurities from entering the cylinder body 1 from the telescopic rod end of the cylinder body 1 and damaging the cylinder components.

[0032] During use, the safety valve 7 prevents overpressure in the cylinder body 1, the lifting ring 8 facilitates installation and transportation of the cylinder body 1, and the sealing ring 9 prevents impurities from entering the cylinder body 1 through the telescopic rod end of the cylinder body 1 and damaging the cylinder components, thereby improving durability. Furthermore, the connecting screws 13 are tightened to secure the multiple sleeves 10 to the upper support 2, the fixing studs 5 are threaded through the sleeves 10 and connected to the mounting plate 4, and the sleeves 10 and mounting plate 4 are tightened using the fixing nuts 14. Thus, the upper support 2 and mounting plate 4 are tightened and secured. Once the mounting plate 4 is secured to the installation position, it can provide stable support for the cylinder body 1. Furthermore, the four connecting screws 13, the fixing studs 5, and the sleeve 10 are removed in sequence, and the upper support 2 and the lower support 3 are supported by the ball core 15, so that the cylinder body 1 can withstand lateral load without damaging the oil cylinder. Furthermore, the shafts 23 on the two symmetrical sleeves 10 are inserted into the bosses 11 on the side walls of the upper support 2, and then the fixing studs 5 are passed through the sleeve 10 to cooperate with the fixing nuts 14 to tighten the sleeve 10 and the mounting plate 4. In addition, the structural design in which the axis of the shaft 23 and the center of the ball core 15 are located on the same horizontal plane can adapt and adjust the load direction of the cylinder body 1, and has high adaptability.

[0033] In this utility model, unless otherwise specified or limited, the terms "install," "connect," "connect," "fix," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; they can refer to mechanical connection or electrical connection; they can refer to direct connection or indirect connection through an intermediate medium; they can refer to internal communication between two components or interaction between two components. There are many ways to detachably install, such as plug-in and snap-fit connection, or bolt connection.

[0034] The above is a clear and complete description of the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. In addition, all the connection / connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation.

[0035] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field may make some non-essential improvements and adjustments to the present invention based on the contents of the above-mentioned utility model, which fall within the scope of protection of the present invention.

Claims

1. A hydraulic cylinder, comprising a cylinder body (1), characterized in that: An upper support (2) and a lower support (3) are sequentially provided at the bottom end of the cylinder body (1); the upper support (2) is fixedly connected to the cylinder body (1); a mounting plate (4) is provided at the bottom end of the lower support (3); a mounting hole (6) is provided on the mounting plate (4); a ball core (15) is provided between the upper support (2) and the lower support (3); and a fixing stud (5) for tightening and fixing the upper support (2) is provided on the mounting plate (4).

2. The hydraulic cylinder according to claim 1, characterized in that: At least two pairs of the fixing studs (5) are arranged around the lower support (3), and each of the fixing studs (5) is sleeved with a fixing nut (14). The side wall of the upper support (2) is provided with sleeve blocks (10) equal in number to and aligned with the fixing studs (5), and the sleeve blocks (10) are sleeved and matched with the fixing studs (5).

3. The hydraulic cylinder according to claim 2, characterized in that: The bottom end of the fixing stud (5) is threadedly connected to the mounting plate (4); the circumferential surface of the upper support (2) is provided with a boss (11) for the sleeve (10) to abut against; the sleeve (10) is provided with a shaft (23) on the side facing the boss (11); the shaft (23) is movably plugged into the boss (11).

4. The hydraulic cylinder according to claim 3, characterized in that: Ear plates (12) are provided on both sides of the sleeve block (10), and connecting screws (13) threadedly connected to the boss (11) are provided on the ear plates (12).

5. The hydraulic cylinder according to claim 3, characterized in that: The axis of the shaft (23) and the center of the ball core (15) are located on the same horizontal plane.

6. The hydraulic cylinder according to claim 1, characterized in that: The bottom of the upper support (2) is provided with an adapting groove (16), the top wall of the adapting groove (16) is provided with a lining plate (19), the top of the ball core (15) is embedded in the adapting groove (16) and abuts against the lining plate (19), the top of the lower support (3) is provided with a convex seat (17) surrounding the ball core (15), the bottom of the upper support (2) is provided with a buckle plate (18) buckled with the convex seat (17), and a gap is provided between the convex seat (17) and the buckle plate (18).

7. The hydraulic cylinder according to claim 1, characterized in that: The cylinder body (1) is equipped with a safety valve (7), a plurality of lifting rings (8) are provided on the top of the outer wall of the cylinder body (1), a sealing ring (9) is provided on the top surface of the cylinder body (1), and the sealing ring (9) includes a steel ring (20) threadedly embedded in the top surface of the cylinder body (1) and a sealing rubber ring (21) fixedly embedded in the steel ring (20), the sealing rubber ring (21) is sealingly connected to the telescopic rod of the cylinder body (1), and a plurality of protrusions (22) are provided on the upper end surface of the steel ring (20).

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