Double-channel rotary oil conveyor

Abstract

The utility model discloses a double-channel rotary oil conveyor which comprises a shell, an inner ring cavity of the shell is rotatably connected with an oil conveying shaft through a bearing and a sealing ring, the oil conveying shaft penetrates through an oil seal assembly and extends out of one end of the shell, the other end of the shell is sealed by an end cover, and an oil inlet in the shell is in butt joint with an oil outlet channel formed in the oil conveying shaft through a ring body side oil channel of the sealing ring. Each sealing ring corresponds to an independent oil outlet channel, and hydraulic oil overflowing from an inner ring cavity of the shell lubricates all assemblies and then is discharged through an oil return mechanism. The device can input hydraulic oil into a rotating part of a machine, is provided with a plurality of independent hydraulic oil channels to help the rotating part to realize multiple functions, has a self-lubricating effect, can effectively utilize and recover overflowing hydraulic oil, and has the characteristics of simple structure, few quick-wear parts, safety and reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of oil transportation equipment, and particularly relates to a dual-channel rotary oil transporter. Background Art

[0002] A rotary joint is a pipeline connection device that can achieve the relative rotation of connected pipelines and equipment during transportation. It can be used to convey various media such as gas, liquid, and oil. The application fields of rotary joints almost cover all processing and manufacturing industries. Among them, in the field of mechanical manufacturing, it is mainly used to transport hydraulic oil. The hydraulic oil pipeline in mechanical equipment is the power source of various oil pumps and can help mechanical equipment achieve multiple functions. The structure of traditional rotary joints is relatively complex, and there are many rubber vulnerable parts that need to be replaced frequently, which is very time-consuming and laborious. Moreover, such rotary joints usually can only support one hydraulic oil circuit, which is not conducive to the realization of the functions of mechanical equipment and does not have a self-lubricating effect. A new type of rotary oil transporter is needed to solve the above problems. Content of the Utility Model

[0003] To solve the above problems, the utility model provides a dual-channel rotary oil transporter, which includes a housing. The inner ring cavity of the housing is rotationally connected to an oil delivery shaft through a bearing and a sealing ring. The oil delivery shaft passes through an oil seal assembly and extends from one end of the housing. The other end of the housing is sealed by an end cover. The oil inlet on the housing is connected to the oil outlet channel opened in the oil delivery shaft through the side oil channel of the sealing ring body. Each sealing ring corresponds to an independent oil outlet channel. The hydraulic oil overflowing from the inner ring cavity of the housing lubricates each component and is discharged through an oil return mechanism.

[0004] Further, the oil return mechanism includes an oil return cavity opened on the lower side of the housing. The top of the oil return cavity is connected to the inner ring cavity of the housing through an oil return channel. The oil return channel is opened at the interval between the bearing, the sealing ring, and the oil seal assembly. The bottom of the oil return cavity is connected to a hydraulic oil tank through an oil nozzle.

[0005] Further, the oil seal assembly includes an inner skeleton oil seal. The inner skeleton oil seal is installed at the outlet end of the inner ring cavity of the housing. The inner ring surface of the inner skeleton oil seal is rotationally connected to the oil delivery shaft. The outer side surface of the inner skeleton oil seal is attached to a sealing oil ring. The sealing oil ring is installed in the annular clamping groove of the inner ring cavity of the housing.

[0006] Further, the shape of the side oil channel at the inner and outer ring surfaces of the sealing ring is a ring groove. The two ring grooves correspond to the outlet end of the oil inlet and the inlet end of the oil outlet channel respectively. The two ring grooves are connected by a column channel. Sealing rings are provided at the connections between the two sides of the outer ring surface of the sealing ring and the inner ring cavity of the housing.

[0007] Further, the extending end of the oil delivery shaft is connected to a machine rotating part through a flange. The outlet end of the oil outlet channel is located at the end face of the extending end of the oil delivery shaft. An enlarged hole for installing a sealing member is opened at the outlet end of the oil outlet channel.

[0008] Further, the sealing ring is made of copper and the number of sealing rings is two.

[0009] The beneficial effects of the present utility model are as follows: The utility model can input hydraulic oil into the rotating parts of the machine, and has multiple independent hydraulic oil channels to help the rotating parts achieve multiple functions. The device has a self-lubricating effect, can effectively utilize and recycle the overflowing hydraulic oil. The device has a simple structure and few vulnerable parts. The use of a copper sealing ring improves the service life, and has the characteristics of safety and reliability. Description of the Drawings

[0010] Figure 1 It is a schematic diagram of the internal structure of the present utility model.

[0011] The description of the reference numerals is as follows: 1. housing; 101. oil inlet; 102. oil return cavity; 103. oil return channel; 104. oil nozzle; 2. bearing; 3. sealing ring; 301. side oil channel; 4. oil delivery shaft; 401. oil outlet channel; 402. flange; 403. reamed hole; 5. end cover; 6. inner skeleton oil seal; 7. oil sealing ring; 8. sealing ring. Detailed Embodiments

[0012] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0013] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0014] The following further describes the present utility model in conjunction with the drawings of the specification:

[0015] As Figure 1As shown in the figure, a two-channel rotary oil feeder includes a housing 1. The inner cavity of the housing 1 is rotatably connected to an oil delivery shaft 4 through a bearing 2 and a sealing ring 3. The sealing ring 3 is made of copper and there are two sealing rings 3. The oil delivery shaft 4 passes through the oil seal assembly and extends out from one end of the housing 1. The extending end of the oil delivery shaft 4 is connected to the rotating part of the machine through a flange 402. The oil seal assembly includes an inner skeleton oil seal 6. The inner skeleton oil seal 6 is installed at the outlet end of the inner cavity of the housing 1. The inner ring surface of the inner skeleton oil seal 6 is rotatably connected to the oil delivery shaft 4. The outer side surface of the inner skeleton oil seal 6 is in contact with an oil sealing ring 7. The oil sealing ring 7 is installed in the annular clamping groove of the inner cavity of the housing 1. The other end of the housing 1 is sealed by an end cover 5.

[0016] In this embodiment, the oil inlet 101 on the housing 1 is connected to the inlet end of the inner oil outlet channel 401 in the oil delivery shaft 4 through the side oil channel 301 on the ring body of the sealing ring 3. The outlet end of the oil outlet channel 401 is located on the end face of the extending end of the oil delivery shaft 4. An enlarged hole 403 for installing a seal is opened at the outlet end of the oil outlet channel 401. The shape of the side oil channel 301 at the inner and outer ring surfaces of the sealing ring 3 is a ring groove. The two ring grooves correspond to the outlet end of the oil inlet 101 and the inlet end of the oil outlet channel 401 respectively. The two ring grooves are connected by a columnar channel. Sealing rings 8 are provided at the joints between the two sides of the outer ring surface of the sealing ring 3 and the inner cavity of the housing 1. The sealing rings 8 can increase the frictional resistance and ensure that the hydraulic oil does not leak, so that the sealing ring 3 and the housing 1 remain stationary.

[0017] In this embodiment, each sealing ring 3 corresponds to an independent oil outlet channel 401. The clearance between the oil delivery shaft 4 and the sealing ring 3 is very small. This clearance is filled with hydraulic oil, which ensures that there will be no seizure during relative friction. The hydraulic oil overflowing from this clearance can lubricate the bearing 2 and is discharged through the oil return mechanism after lubrication. The oil return mechanism includes an oil return cavity 102 opened on the lower side of the housing 1. The top of the oil return cavity 102 is connected to the inner cavity of the housing 1 through an oil return channel 103. The oil return channel 103 is opened at the interval between the bearing 2, the sealing ring 3 and the oil seal assembly. The bottom of the oil return cavity 102 is connected to the hydraulic oil tank through an oil nozzle 104.

[0018] The working principle of the present utility model is as follows:

[0019] Driven by the rotating parts of the machine, the oil delivery shaft 4 rotates in the inner cavity of the housing 1. During the rotation, the inlet ends of the oil outlet channels 401 are always located in the annular groove of the side oil channel 301, ensuring unobstructed communication between the oil outlet channels 401 and the oil inlet 101. Hydraulic oil is injected into the oil inlet 101 through the hydraulic oil system. The hydraulic oil enters the oil outlet channels 401 through the side oil channels 301, providing two hydraulic oil circuits for the rotating parts to drive components such as oil cylinders. Part of the hydraulic oil overflows from the gap between the oil delivery shaft 4 and the sealing ring 3, serving to lubricate components such as the bearing 2 and the sealing ring 3. The lubricated hydraulic oil enters the oil return cavity 102 through the oil return channel 103 and is re-circulated into the hydraulic oil system through the oil nozzle 104. The utility model can input hydraulic oil into the rotating parts of the machine, has multiple independent hydraulic oil channels to help the rotating parts achieve multiple functions, has a self-lubricating effect, can effectively utilize and recycle the overflowing hydraulic oil, has a simple structure and few vulnerable parts, and is safe and reliable.

[0020] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed.

Claims

1. A dual-channel rotary oil conveyor, comprising a housing (1), characterized in that: The inner ring cavity of the housing (1) is rotatably connected to the oil delivery shaft (4) through the bearing (2) and the sealing ring (3); the oil delivery shaft (4) passes through the oil seal assembly and extends from one end of the housing (1); the other end of the housing (1) is sealed by an end cover (5); the oil inlet (101) on the housing (1) is connected to the oil outlet passage (401) opened in the oil delivery shaft (4) through the oil passage (301) on the ring body side of the sealing ring (3); each sealing ring (3) corresponds to an independent oil outlet passage (401); hydraulic oil overflowing from the inner ring cavity of the housing (1) lubricates each component and is then discharged through an oil return mechanism.

2. A dual-channel rotary oil conveyor according to claim 1, characterized in that: The oil return mechanism comprises an oil return chamber (102) provided on the lower side of the housing (1); the top of the oil return chamber (102) is connected to the inner ring chamber of the housing (1) via an oil return passage (103); the oil return passage (103) is provided at the interval between the bearing (2), the sealing ring (3) and the oil seal assembly; the bottom of the oil return chamber (102) is connected to the hydraulic oil tank via an oil nozzle (104).

3. A dual-channel rotary oil conveyor according to claim 1, characterized in that: The oil seal assembly comprises an inner skeleton oil seal (6), the inner skeleton oil seal (6) being mounted at the outlet end of the inner ring cavity of the housing (1), the inner ring surface of the inner skeleton oil seal (6) being rotatably connected to the oil delivery shaft (4), the outer side surface of the inner skeleton oil seal (6) being in contact with an oil sealing ring (7), and the oil sealing ring (7) being mounted in an annular groove of the inner ring cavity of the housing (1).

4. A dual-channel rotary oil conveyor according to claim 1, characterized in that: The side oil passage (301) is in the shape of an annular groove at the inner and outer annular surfaces of the sealing ring (3), the two annular grooves respectively corresponding to the outlet end of the oil inlet (101) and the inlet end of the oil outlet passage (401), the two annular grooves are connected by a column channel, and sealing rings (8) are provided at the connection between the two sides of the outer annular surface of the sealing ring (3) and the inner annular cavity of the housing (1).

5. A dual-channel rotary oil conveyor according to claim 1, characterized in that: The extended end of the oil delivery shaft (4) is connected to a rotating part of the machine via a flange (402); the outlet end of the oil outlet passage (401) is located on the end face of the extended end of the oil delivery shaft (4); and the outlet end of the oil outlet passage (401) is provided with an expanded hole (403) for installing a sealing member.

6. A dual-channel rotary oil conveyor according to claim 1, characterized in that: The sealing ring (3) is made of copper, and there are two sealing rings (3).

Images