Hydraulic central rotary joint seat

Abstract

The utility model relates to the technical field of central rotary joints, and discloses a hydraulic central rotary joint seat which comprises a base plate, a mandrel is arranged at the top of the base plate, a top cover is fixedly connected to the top of the mandrel, a plug is fixedly connected to the top of the top cover, and a joint seat is arranged between the base plate and the top cover. Due to the fact that the connector base and the rotating sleeve are arranged, the service life of an oil pipe is guaranteed, oil can enter the cover groove through the opening by starting oil supply equipment, then the oil enters the space between the mandrel and the connector base through the through groove, and therefore the oil pipe can be well sealed. And when the rotating sleeve rotates, the rotating sleeve can rotate in the connector base, so that the situation that the oil pipe is bent for a long time due to rotation of the guide pipe and the oil pipe connected with the guide pipe is avoided, and the service life of the rotating sleeve is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of central swivel joints, and more specifically to a hydraulic central swivel joint seat. Background Art

[0002] The central swivel joint is a key component of swivel machinery, consisting of a core shaft and a hydraulic central swivel joint seat. It serves as the main control element of the hydraulic swivel system and requires high pressure resistance and high integration. No casting defects or dimensional errors are allowed. When the existing central swivel joint is in use, it is easy to cause the oil pipe to twist during rotation, which makes the oil pipe easy to bend and break after long-term use, which is not conducive to its service life. Therefore, a hydraulic central swivel joint seat is provided. Utility Model Content

[0003] In order to overcome the above defects of the prior art, the utility model provides a hydraulic central swivel joint seat to solve the problems existing in the above background technology.

[0004] The utility model provides the following technical solutions: a hydraulic central swivel joint seat, comprising a chassis, a core shaft is placed on the top of the chassis, a top cover is fixedly connected to the top of the core shaft, a plug is fixedly connected to the top of the top cover, a joint seat is placed between the chassis and the top cover, a rotating sleeve is movably connected to the inner side of the joint seat, a conduit is fixedly connected to the outer side of the rotating sleeve, the joint seat comprises a first shell, the top and bottom of the first shell are both fixedly connected to connecting blocks, one end of the connecting block is fixedly connected to a second shell, the inner sides of the first shell and the second shell are both provided with sealing rotating grooves, and the insides of the first shell and the second shell are both fixedly connected to sealing rings.

[0005] Preferably, the chassis comprises a disc body, the interior of the disc body is movably connected with bolts, and the interior of the disc body is fixedly connected with a first sealing gasket.

[0006] Preferably, the rotating sleeve comprises a sleeve body, a pipe groove is provided inside the sleeve body, a connecting sleeve is fixedly connected to the top and the bottom of the sleeve body, and a sealing sleeve is provided on the inner side and the outer side of the connecting sleeve.

[0007] Preferably, the top cover comprises a cover body, the interior of the cover body is fixedly connected with a second sealing gasket, and the interior of the cover body is provided with a cover groove.

[0008] Preferably, the plug comprises a fixing block, and an opening is provided inside the fixing block.

[0009] Preferably, the core shaft comprises a shaft body, and a through groove is provided inside the shaft body.

[0010] Technical effects and advantages of the utility model:

[0011] The utility model is advantageous in ensuring the service life of the oil pipe by providing a joint seat and a rotating sleeve. When in use, the plug is connected to the oil supply device, and then the guide tube is connected to the oil pipe. By starting the oil supply device, the oil can enter the cover groove through the opening, and then enter the space between the core shaft and the joint seat through the through groove, and finally enter the oil pipe through the guide tube. The used oil can enter the oil-using equipment. When the rotating sleeve rotates, the rotating sleeve can rotate inside the joint seat, so that the guide tube and the oil pipe connected thereto will not bend the oil pipe due to the rotation, so that the oil pipe will not be easily broken due to long-term bending, thereby ensuring its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model.

[0013] Figure 2 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 3 It is a schematic diagram of the overall structure of the connector base of the utility model.

[0015] Figure 4 It is a schematic diagram of the overall structure of the rotating sleeve of the utility model.

[0016] The accompanying drawings are marked as follows: 1. chassis; 101. disk body; 102. bolt; 103. first sealing gasket; 2. conduit; 3. joint seat; 301. first shell; 302. sealing rotating groove; 303. connecting block; 304. second shell; 305. sealing ring; 4. rotating sleeve; 401. sleeve body; 402. pipe groove; 403. sealing sleeve; 404. connecting sleeve; 5. top cover; 501. cover body; 502. second sealing gasket; 503. cover groove; 6. plug; 601. fixing block; 602. opening; 7. core shaft; 701. shaft body; 702. through groove. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the hydraulic central swivel joint seat involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0018] The utility model provides a hydraulic central swivel joint seat, comprising a chassis 1, a core shaft 7 is placed on the top of the chassis 1, a top cover 5 is fixedly connected to the top of the core shaft 7, a plug 6 is fixedly connected to the top of the top cover 5, a joint seat 3 is placed between the chassis 1 and the top cover 5, a rotating sleeve 4 is movably connected to the inner side of the joint seat 3, a conduit 2 is fixedly connected to the outer side of the rotating sleeve 4, the joint seat 3 comprises a first shell 301, a connecting block 303 is fixedly connected to the top and bottom of the first shell 301, and one end of the connecting block 303 is fixedly connected to The second shell 304, the first shell 301 and the second shell 304 are provided with a sealing groove 302 on their inner sides, and the first shell 301 and the second shell 304 are fixedly connected with a sealing ring 305 inside, and the sealing ring 305 is used for sealing between the joint seat 3 and the core shaft 7, so that a certain enclosed space can be generated between it and the core shaft 7, and the sealing groove 302 is used for the rotation of the rotating sleeve 4, and the connecting block 303 is used for connecting the first shell 301 and the second shell 304, and there is a certain distance between the connecting blocks 303 for the passage of oil.

[0019] Furthermore, the chassis 1 includes a disk body 101, the inside of the disk body 101 is movably connected with bolts 102, the inside of the disk body 101 is fixedly connected with a first sealing gasket 103, the first sealing gasket 103 is used for sealing between the first sealing gasket 103 and the joint seat 3, by using the bolts 102, the chassis 1 can be fixed to the bottom of the core shaft 7, and the joint seat 3 can be pressed between the top cover 5 and the chassis 1, and the joint seat 3 can rotate between the top cover 5 and the chassis 1.

[0020] Furthermore, the rotating sleeve 4 includes a sleeve body 401, a tube groove 402 is provided inside the sleeve body 401, a connecting sleeve 404 is fixedly connected to the top and bottom of the sleeve body 401, a sealing sleeve 403 is provided on the inner and outer sides of the connecting sleeve 404, the rotating sleeve 4 can rotate inside the joint seat 3, and its sealing is ensured under the action of the sealing sleeve 403, and the tube groove 402 is used to connect the catheter 2.

[0021] Furthermore, the top cover 5 includes a cover body 501 , the interior of the cover body 501 is fixedly connected with a second sealing gasket 502 , the interior of the cover body 501 is provided with a cover groove 503 , and the second sealing gasket 502 is used for sealing between the cover body 501 and the joint seat 3 .

[0022] Furthermore, the plug 6 includes a fixing block 601 , and an opening 602 is provided inside the fixing block 601 , and the opening 602 is used for the passage of oil.

[0023] Furthermore, the core shaft 7 includes a shaft body 701 , and a through groove 702 is provided inside the shaft body 701 , and the through groove 702 is used for the passage of oil.

[0024] The working principle of the utility model is as follows: when in use, the plug 6 is connected to the oil supply device, and then the conduit 2 is connected to the oil pipe of the oil-consuming device. By starting the oil supply device, the oil can enter the cover groove 503 through the opening 602, and then enter the space between the core shaft 7 and the joint seat 3 through the through groove 702, and finally enter the oil pipe through the conduit 2. The used oil can enter the oil-consuming device. When it rotates, the rotating sleeve 4 can rotate inside the joint seat 3, so that the conduit 2 and the oil pipe connected thereto will not bend due to the rotation, ensuring that the oil pipe will not be bent for a long time and easily break, thereby ensuring its service life.

[0025] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0026] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0027] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A hydraulic central swivel joint seat, comprising a chassis (1), characterized in that: A core shaft (7) is placed on the top of the chassis (1), a top cover (5) is fixedly connected to the top of the core shaft (7), a plug (6) is fixedly connected to the top of the top cover (5), a joint seat (3) is placed between the chassis (1) and the top cover (5), a rotating sleeve (4) is movably connected to the inner side of the joint seat (3), a conduit (2) is fixedly connected to the outer side of the rotating sleeve (4), the joint seat (3) comprises a first shell (301), the top and bottom of the first shell (301) are fixedly connected to a connecting block (303), one end of the connecting block (303) is fixedly connected to a second shell (304), the inner sides of the first shell (301) and the second shell (304) are both provided with a sealing rotating groove (302), and the insides of the first shell (301) and the second shell (304) are both fixedly connected to a sealing ring (305).

2. A hydraulic central swivel joint seat according to claim 1, characterized in that: The chassis (1) comprises a chassis body (101), the interior of the chassis body (101) being movably connected with bolts (102), and the interior of the chassis body (101) being fixedly connected with a first sealing gasket (103).

3. The hydraulic central swivel joint seat according to claim 1, characterized in that: The rotating sleeve (4) comprises a sleeve body (401), a tube groove (402) is provided inside the sleeve body (401), a connecting sleeve (404) is fixedly connected to the top and bottom of the sleeve body (401), and a sealing sleeve (403) is provided on the inner side and the outer side of the connecting sleeve (404).

4. The hydraulic central swivel joint seat according to claim 1, characterized in that: The top cover (5) comprises a cover body (501), a second sealing gasket (502) is fixedly connected to the inside of the cover body (501), and a cover groove (503) is provided inside the cover body (501).

5. The hydraulic central swivel joint seat according to claim 1, characterized in that: The plug (6) comprises a fixing block (601), and an opening (602) is provided inside the fixing block (601).

6. The hydraulic central swivel joint seat according to claim 1, characterized in that: The core shaft (7) comprises a shaft body (701), and a through groove (702) is provided inside the shaft body (701).

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