CN210462082U

CN210462082U - Central swivel joint with quick change-over joint

Info

Publication number: CN210462082U
Application number: CN201921625978.1U
Authority: CN
Inventors: 廉庆慧; 魏佑超
Original assignee: SHANDONG DORSON HYDRAULIC CO Ltd
Current assignee: SHANDONG DORSON HYDRAULIC CO Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-05-05
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses a central authorities 'swivel joint with quick crossover sub, including central authorities' swivel joint body, a plurality of oilhole has all been seted up to the both sides of central authorities 'swivel joint body, a plurality of oilhole respectively with a plurality of oil pipe's one end fixed connection, one side of a plurality of oil pipe all overlaps and is equipped with and supports the cover, a plurality of supports the one end of cover and all fixes and be equipped with the horn cover, the inner wall of a plurality of oil pipe one side is all fixed and is equipped with first inner ring, the beneficial effects of the utility model are that: the utility model relates to a central authorities swivel joint with quick crossover sub through setting up first inner ring, second inner ring and third inner ring respectively at oil pipe's inner wall, is applicable to the conveyer pipe joint of different diameters, through the first internal thread of first inner ring, the second internal thread of second inner ring and the third internal thread of third inner ring, can connect not unidimensional conveyer pipe joint, is convenient for change the conveyer pipe joint of different diameters.

Description

Central swivel joint with quick change-over joint

Technical Field

The utility model relates to a central swivel joint, in particular to central swivel joint with quick crossover sub belongs to excavator accessory technical field.

Background

The application of central swivel joint on the excavator is very extensive, its effect is the hydraulic line of connecting fixed and rotating part in whole hydraulic system, make system hydraulic line upper and lower two parts have relative slewing motion, when the excavator gyration moves, carry hydraulic oil for the walking motor through central joint, ordinary oil pipe is difficult to accomplish like central joint such effect, even accomplish, the pipeline life-span is not as good as such mode of central joint, common central swivel joint is not convenient for the crossover sub, and can't change the joint of different diameters, in addition, common central swivel joint does not have the function of protecting the joint.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a central authorities ' swivel joint with quick crossover sub to solve the common central authorities ' swivel joint who provides among the above-mentioned background art and be not convenient for the crossover sub's problem.

In order to achieve the above object, the utility model provides a following technical scheme: a central rotary joint with a quick switching joint comprises a central rotary joint body, wherein a plurality of oil holes are respectively formed in two sides of the central rotary joint body, the oil holes are respectively and fixedly connected with one ends of a plurality of oil pipes, a support sleeve is sleeved on one side of the oil pipes, a horn sleeve is fixedly arranged at one end of each support sleeve, a first inner ring is fixedly arranged on the inner wall of one side of each oil pipe, first inner threads are fixedly arranged on the inner walls of the first inner rings, the first inner threads are respectively in threaded connection with a plurality of conveying pipe joints through outer threads, a second inner ring is fixedly arranged on the inner wall of the middle part of each oil pipe, second inner threads are fixedly arranged on the inner walls of the second inner rings, and a third inner ring is fixedly arranged on the inner wall of the other side of each oil pipe, and a plurality of third inner threads are fixedly arranged on the inner wall of the third inner ring.

As a preferred technical scheme of the utility model, a plurality of the draw-in groove, a plurality of have all been seted up to one side of oil pipe the draw-in groove all supports the cover block with a plurality of respectively through the card strip and is connected.

As a preferred technical scheme of the utility model, a plurality of the inner wall army of first inner ring one side all fixes and is equipped with first sealing washer, a plurality of the inner wall of second inner ring one side all fixes and is equipped with second sealing washer, a plurality of the inner wall of third inner ring one side all fixes and is equipped with the third sealing washer.

As an optimized technical proposal of the utility model, a plurality of the surfaces of the oil pipes are coated with anticorrosive paint.

As an optimized technical scheme of the utility model, a plurality of the one end of loudspeaker cover is all fixed and is equipped with the arc strip.

As an optimized technical scheme of the utility model, a plurality of the inner wall of supporting the cover is all fixed and is equipped with wear pad.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a central authorities swivel joint with quick crossover sub, through setting up first inner ring respectively at oil pipe's inner wall, second inner ring and third inner ring, be applicable to the conveyer pipe joint of different diameters, first internal thread through first inner ring, the second internal thread of second inner ring and the third internal thread of third inner ring, can connect not unidimensional conveyer pipe joint, be convenient for change the conveyer pipe joint of different diameters, be convenient for simultaneously install and dismantle it, through setting up the loudspeaker cover, can play the effect of protection to the conveyer pipe joint, the excavator is when doing rotary motion, can be spacing to the removal angle of conveyer pipe joint through the loudspeaker cover, avoid conveyer pipe joint the phenomenon of buckling to appear, support the cover through setting up, can guarantee the stability of loudspeaker cover.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the cross-sectional structure of the oil pipe of the present invention;

fig. 3 is a schematic structural view of the support sleeve of the present invention.

In the figure: 1. a central swivel joint body; 2. an oil hole; 3. an oil pipe; 4. a first inner ring; 5. a first internal thread; 6. a first seal ring; 7. a second inner ring; 8. a second internal thread; 9. a second seal ring; 10. a third inner ring; 11. a third internal thread; 12. a third seal ring; 13. a delivery pipe joint; 14. clamping the strip; 15. a support sleeve; 16. a horn sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a central swivel joint with a quick change-over joint, which comprises a central swivel joint body 1, wherein a plurality of oil holes 2 are respectively formed at both sides of the central swivel joint body 1, the plurality of oil holes 2 are respectively fixedly connected with one ends of a plurality of oil pipes 3, one sides of the plurality of oil pipes 3 are respectively sleeved with a supporting sleeve 15, one ends of the plurality of supporting sleeves 15 are respectively fixedly provided with a horn sleeve 16, the stability of the horn sleeve 16 can be ensured by arranging the supporting sleeve 15, the inner walls of one sides of the plurality of oil pipes 3 are respectively fixedly provided with a first inner ring 4, the inner walls of the plurality of first inner rings 4 are respectively fixedly provided with a first inner thread 5, the plurality of first inner threads 5 are respectively in threaded connection with a plurality of conveying pipe joints 13 through outer threads, the inner walls of the middle portions of the plurality of oil pipes 3 are respectively fixedly provided with a second inner ring 7, the inner walls of the plurality of second inner rings, the inner wall of 3 opposite sides of a plurality of oil pipes all fixes and is equipped with third inner ring 10, and the inner wall of a plurality of third inner ring 10 all fixes and is equipped with third internal thread 11, through the first internal thread 5 of first inner ring 4, the second internal thread 8 of second inner ring 7 and the third internal thread 11 of third inner ring 10, but connect not unidimensional duct joints 13, is convenient for change duct joints 13 of different diameters.

Preferably, one side of each of the plurality of oil pipes 3 is provided with a clamping groove, and the plurality of clamping grooves are respectively connected with the plurality of support sleeves 15 in a clamping manner through clamping strips 14, so that the support sleeves 15 can be conveniently mounted and dismounted; the inner walls of one sides of the first inner rings 4 are fixedly provided with first sealing rings 6, the inner walls of one sides of the second inner rings 7 are fixedly provided with second sealing rings 9, and the inner walls of one sides of the third inner rings 10 are fixedly provided with third sealing rings 12, so that the sealing effect is good; the surfaces of the oil pipes 3 are coated with anticorrosive paint, so that the anticorrosive performance is good; one end of each of the horn sleeves 16 is fixedly provided with an arc-shaped strip, and the conveying pipe joint 13 is not easily damaged by the arc-shaped strips; the inner walls of the support sleeves 15 are fixedly provided with wear-resistant pieces, so that the wear resistance of the support sleeves 15 is improved.

When the central swivel joint with the quick change-over joint is used, the conveying pipe joint 13 is taken out, the support sleeve 15 is sleeved on the surface of the conveying pipe joint 13, one end of the conveying pipe joint 13 is in threaded connection with the first internal thread 5 of the first inner ring 4, then the clamping strip 14 of the support sleeve 15 is in clamping connection with the clamping groove of the oil pipe 3, the support sleeve 15 is fixed, oil in the central swivel joint body 1 reaches the conveying pipe joint 13 through the oil hole 2, the sealing effect of the first inner ring 4 is ensured through the first sealing ring 6, when the excavator does swivel motion, the moving angle of the conveying pipe joint 13 can be limited through the horn sleeve 16, the phenomenon that the conveying pipe joint 13 is bent is avoided, when the conveying pipe joints 13 with different diameters need to be changed, the support sleeve 15 is detached through the clamping strip 14 and the clamping groove, then the conveying pipe joint 13 is detached, and taking out another delivery pipe joint 13 matched with the second internal thread 8 or the third internal thread 11, and connecting the delivery pipe joint with the second internal thread 8 or the third internal thread 11.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A central rotary joint with a quick change-over joint comprises a central rotary joint body (1) and is characterized in that a plurality of oil holes (2) are formed in the two sides of the central rotary joint body (1), the oil holes (2) are fixedly connected with one ends of a plurality of oil pipes (3) respectively, a support sleeve (15) is sleeved on one side of each oil pipe (3), a horn sleeve (16) is fixedly arranged at one end of each support sleeve (15), a first inner ring (4) is fixedly arranged on the inner wall of one side of each oil pipe (3), first inner threads (5) are fixedly arranged on the inner wall of each first inner ring (4), the first inner threads (5) are respectively in threaded connection with a plurality of conveying pipes (13) through outer threads, and a second inner ring (7) is fixedly arranged on the inner wall of the middle portion of each oil pipe (3), the inner wall of the second inner ring (7) is fixedly provided with a second internal thread (8), the inner wall of the other side of the oil pipe (3) is fixedly provided with a third inner ring (10), and the inner wall of the third inner ring (10) is fixedly provided with a third internal thread (11).

2. A central swivel joint with a quick-change coupling according to claim 1, wherein: a plurality of clamping grooves are formed in one side of the oil pipe (3) and are connected with a plurality of supporting sleeves (15) in a clamping mode through clamping strips (14).

3. A central swivel joint with a quick-change coupling according to claim 1, wherein: a plurality of the inner wall army of first inner ring (4) one side all is fixed and is equipped with first sealing washer (6), a plurality of the inner wall of second inner ring (7) one side all is fixed and is equipped with second sealing washer (9), a plurality of the inner wall of third inner ring (10) one side all is fixed and is equipped with third sealing washer (12).

4. A central swivel joint with a quick-change coupling according to claim 1, wherein: the surfaces of the oil pipes (3) are coated with anticorrosive paint.

5. A central swivel joint with a quick-change coupling according to claim 1, wherein: and arc-shaped strips are fixedly arranged at one ends of the horn sleeves (16).

6. A central swivel joint with a quick-change coupling according to claim 1, wherein: the inner walls of the support sleeves (15) are all fixedly provided with wear-resistant pieces.