High-precision hollow rotary oil cylinder

Abstract

The utility model provides a high-precision hollow rotary oil cylinder, which belongs to the technical field of hollow rotary oil cylinders, comprises an oil cylinder body, and is characterized in that the right part of the oil cylinder body is fixedly provided with an oil cylinder body lower shell, the left part of the oil cylinder body is fixedly provided with an oil cylinder upper shell, and the right part of the oil cylinder body lower shell is fixedly provided with a gland; and a lower cover is fixedly mounted at the right part of the gland. The rotary oil cylinder is simple in structure, convenient to install and high in efficiency, is an important component for improving the operation efficiency of mechanical equipment, can be widely applied to various kinds of equipment, and effectively improves the efficiency of the equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of hollow swing cylinders, and particularly relates to a high-precision hollow swing cylinder. Background Technique

[0002] Swing cylinders are widely used in the fields of construction machinery, ships, numerically controlled lathe equipment, etc. On excavators, swing cylinders control the swing movement of the excavator to achieve the swing and positioning of the tooling device; on cranes, swing hydraulic cylinders can control the swing movement of the boom. In numerically controlled lathes, the bar stock rotates at high speed together with the swing cylinder for processing. In short, swing cylinders play a crucial role in mechanical equipment and provide key support for the movement of mechanical equipment.

[0003] As an important hydraulic component, high-speed hollow swing cylinders are widely used in various equipment and can effectively improve equipment efficiency. However, most of the existing swing cylinders have complex structures and are difficult to install, reducing work efficiency. Content of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a high-precision hollow swing cylinder that overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model is realized as follows:

[0006] The utility model provides a high-precision hollow swing cylinder, including a cylinder body. The right part of the cylinder body is fixedly installed with a lower shell of the cylinder block, the left part of the cylinder body is fixedly installed with an upper shell of the cylinder block, the right part of the lower shell of the cylinder block is fixedly installed with a gland, and the right part of the gland is fixedly installed with a lower cover.

[0007] In an embodiment of the utility model, a swing valve shaft is sleeved on the surface of the cylinder body. An oil cylinder cover is opened at the front part of the upper shell of the oil cylinder block, an oil inlet is opened on the outer side of the upper shell of the oil cylinder block, and an oil outlet is opened on the outer side of the upper shell of the oil cylinder block.

[0008] In an embodiment of the utility model, an upper cover is fixedly installed on the left part of the upper shell of the oil cylinder block, a connecting seat is fixedly installed on the left part of the upper cover, and a sealing member is installed on the surface of the connecting seat.

[0009] In an embodiment of the utility model, a rotating shaft is fixedly installed on the left part of the swing valve shaft, a flow dividing shaft is fixedly installed on the left part of the rotating shaft, and a flow inlet and outlet is opened on the surface of the flow dividing shaft.

[0010] In an embodiment of the present utility model, a slewing bearing is fixedly installed on the left part of the flow dividing shaft, a connecting member is fixedly installed on the left part of the slewing bearing, and a piston is slidably installed inside the connecting member.

[0011] In an embodiment of the present utility model, the oil inlet and the oil outlet are communicated through an oil inlet passage.

[0012] A high-precision hollow slewing oil cylinder provided by the present utility model has the following beneficial effects:

[0013] 1. This oil cylinder has a simple structure, is convenient to install and has high efficiency. It is an important part to improve the operation efficiency of mechanical equipment, enabling the slewing oil cylinder to be widely used in various equipment and effectively improving the equipment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 is the overall structural schematic diagram provided by the embodiment of the present utility model;

[0016] Figure 2 is the overall right view structural schematic diagram provided by the embodiment of the present utility model;

[0017] Figure 3 is the internal structural schematic diagram of the oil cylinder body provided by the embodiment of the present utility model.

[0018] In the figure: 1, oil cylinder body; 2, connecting seat; 3, oil inlet; 4, upper shell of the oil cylinder; 5, piston; 6, lower shell of the oil cylinder body; 7, rotary valve shaft; 8, oil cylinder cover; 9, oil outlet; 10, slewing bearing; 11, seal; 12, rotating shaft; 13, oil inlet passage; 14, flow dividing shaft; 15, lower cover; 16, gland; 17, connecting member; 18, upper cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] Embodiment

[0021] Referring to Figures 1-3 , this technical solution provides a high-precision hollow swing cylinder, which includes a cylinder body 1. A lower cylinder housing 6 is fixedly installed on the right part of the cylinder body 1, and an upper cylinder housing 4 is fixedly installed on the left part of the cylinder body 1. The two cylinder bodies are independent of each other and can be telescoped simultaneously without interference, making the overall structure of the machine more compact and the space utilization rate higher. A gland 16 is fixedly installed on the right part of the lower cylinder housing 6 of the cylinder body, and a lower cover 15 is fixedly installed on the right part of the gland 16. A swing valve shaft 7 is sleeved on the surface of the cylinder body 1. The function of the swing valve shaft 7 is to control the position of the valve core, thereby controlling the flow area of the valve body, realizing the opening or closing of the oil circuit, and further realizing the rotation or stop of the hydraulic system. It usually forms the main structure of the hydraulic valve together with components such as a control piston 5. In the swing cylinder, the swing valve shaft 7 can control the flow direction and flow rate of the hydraulic oil, thereby adjusting the output force of the cylinder. In addition, the swing valve shaft 7 is also used to change the working position and speed of the piston 5 to realize the flexible application of the cylinder under different working conditions. An oil cylinder cover 8 is provided at the front part of the upper cylinder housing 4 of the cylinder body, an oil inlet 3 is provided on the outer side of the upper cylinder housing 4 of the cylinder body, and an oil outlet 9 is provided on the outer side of the upper cylinder housing 4 of the cylinder body. The two oil ports are close to each other, which can simplify the pipeline layout and avoid excessive pipeline connections, making the system structure simpler. An upper cover 18 is fixedly installed on the left part of the upper cylinder housing 4 of the cylinder body, a connecting seat 2 is fixedly installed on the left part of the upper cover 18, a sealing member 11 is installed on the surface of the connecting seat 2, a rotating shaft 12 is fixedly installed on the left part of the swing valve shaft 7, a shunt shaft 14 is fixedly installed on the left part of the rotating shaft 12, an inlet flow port 13 is provided on the surface of the shunt shaft 14, and a swing bearing 10 is fixedly installed on the left part of the shunt shaft 14. The shunt shaft 14 plays a key role in the swing cylinder. It can split the hydraulic oil from the oil pump. The shunt shaft 14 can also control the flow direction and flow rate of the hydraulic oil, thereby adjusting the output force of the cylinder. In addition, the shunt shaft 14 is also used to change the working position and speed of the piston to realize the flexible application of the cylinder under different working conditions. A connecting member 17 is fixedly installed on the left part of the swing bearing 10, a piston 5 is slidably installed inside the connecting member 17, and the oil inlet 3 and the oil outlet 9 are communicated through the inlet flow port 13.

[0022] Specifically, the working process or principle of this high-precision hollow swing cylinder is as follows: Its working principle can be simply summarized as that the hydraulic pump transports hydraulic oil into the interior of the swing cylinder body 1, and the inflow and outflow of the oil fluid are regulated through the control valve, thereby controlling the swing direction and speed of the cylinder. When the hydraulic oil enters the oil inlet 3 of the cylinder, the hydraulic oil inside the oil outlet 9 of the cylinder will be discharged, thus realizing the conversion of hydraulic energy and driving the cylinder to achieve swing motion.

[0023] The structural characteristics of the swing cylinder mainly include components such as the cylinder body 1, cylinder head 8, piston 5, seal 11, slewing bearing 10, etc. The cylinder body 1 is the main component of the swing cylinder. It bears the conversion and transmission of hydraulic energy and has the characteristic of strong load-bearing capacity. The cylinder head 8 is used to fix the piston 5 and the seal 11 to ensure the sealing of the hydraulic oil in the cylinder and the pressure transmission. The piston 5 is the key component of the swing cylinder. It is in direct contact with the hydraulic oil in the cylinder, and the swing motion of the working mechanism is realized by pushing the piston 5. The seal 11 plays a sealing role to prevent the leakage of hydraulic oil and the entry of external impurities. The slewing bearing 10 is used to support and fix the rotating shaft of the swing cylinder to ensure the stability and smoothness of the swing motion.

Claims

1. A high-precision hollow swing cylinder, comprising a cylinder body (1), characterized in that, On the right part of the cylinder body (1), a lower cylinder housing (6) is fixedly installed. On the left part of the cylinder body (1), an upper cylinder housing (4) is fixedly installed. On the right part of the lower cylinder housing (6), a gland (16) is fixedly installed. On the right part of the gland (16), a lower cover (15) is fixedly installed.

2. The high-precision hollow swing cylinder according to claim 1, wherein, A rotary valve shaft (7) is sleeved on the surface of the cylinder body (1). In the front part of the upper cylinder housing (4), a cylinder cover (8) is provided. On the outer side of the upper cylinder housing (4), an oil inlet (3) is provided. On the outer side of the upper cylinder housing (4), an oil outlet (9) is provided.

3. The high-precision hollow swing oil cylinder according to claim 2, characterized in that, On the left part of the upper cylinder housing (4), an upper cover (18) is fixedly installed. On the left part of the upper cover (18), a connecting seat (2) is fixedly installed. A sealing member (11) is installed on the surface of the connecting seat (2).

4. A high-precision hollow swing cylinder according to claim 3, characterized in that, On the left part of the rotary valve shaft (7), a rotary shaft (12) is fixedly installed. On the left part of the rotary shaft (12), a flow dividing shaft (14) is fixedly installed. An inlet flow port (13) is provided on the surface of the flow dividing shaft (14).

5. A high-precision hollow swing cylinder according to claim 4, characterized in that, On the left part of the flow dividing shaft (14), a slewing bearing (10) is fixedly installed. On the left part of the slewing bearing (10), a connecting member (17) is fixedly installed. A piston (5) is slidably installed inside the connecting member (17).

6. The high-precision hollow swing cylinder according to claim 5, wherein, The oil inlet (3) and the oil outlet (9) are communicated through the inlet flow port (13).

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