CN217301342U

CN217301342U - Sealing structure of speed-regulating type hydraulic coupler

Info

Publication number: CN217301342U
Application number: CN202220954721.6U
Authority: CN
Inventors: 孙张敬; 李�杰
Original assignee: Dalian Hengyi Coupling Co Ltd
Current assignee: Dalian Hengyi Coupling Co Ltd
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2022-08-26
Anticipated expiration: 2032-04-24

Abstract

The utility model discloses a sealing structure of a speed-regulating type hydraulic coupler, which relates to the sealing technical field and comprises a first mounting ring, a second mounting ring and a sealing mechanism; the first mounting ring is movably arranged above the second mounting ring, a first through hole and a second through hole are respectively formed above the first mounting ring and the second mounting ring, and the diameter of the first through hole is the same as that of the second through hole; the sealing mechanism comprises a first sealing ring, a second sealing ring, a fixing plate, a sliding rod, a fastening spring and a connecting block. The utility model discloses in, through the sealing mechanism who sets up, the pump impeller during operation, first collar and second collar receive the impact force and take place certain deformation back, because fastening spring is the compression form, fastening spring outwards promotes the connecting block, because the outside activity of one end of slide bar, with the one side pulling of connecting block to first collar for first sealing washer and second sealing washer laminate with first collar and second collar respectively.

Description

Sealing structure of speed-regulating type hydraulic coupler

Technical Field

The utility model relates to a sealed technical field, in particular to speed governing type hydraulic coupling's seal structure.

Background

The speed-regulating hydraulic coupler is characterized in that a pump wheel converts input mechanical work into kinetic energy of oil, a turbine converts the kinetic energy of the oil into output mechanical work, so that the transmission of the power is realized, the stepless speed change of the speed-regulating hydraulic coupler is realized by changing the position of a scoop tube and changing the working oil quantity in a circulation circle, the property of viscous fluid shows that the slip loss and the bearing friction loss of the coupler generate a large amount of heat and are absorbed by the working oil of the coupler, and the coupler consists of the pump wheel, the turbine, the scoop tube, a protective shell and a mounting ring.

In the sealing structure of the speed regulation type hydraulic coupler in the current market, two mounting rings are attached together, and then the two mounting rings are sealed through bolts.

The sealing structure of the existing speed regulation type hydraulic coupler seals two mounting rings through bolts, however, when a pump wheel works, certain vibration can occur, the two mounting rings can slightly deform, and the sealing performance of the joint of the two mounting rings is damaged.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a seal structure of speed governing type hydraulic coupling, the bolt that exists of the seal structure of the current speed governing type hydraulic coupling that can effectively solve and propose in the background art seals two mount rings, however at the pump impeller during operation, can take place certain vibrations, and slight deformation can take place for two mount rings for the destroyed problem of the leakproofness of two mount ring junctions.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a sealing structure of a speed-regulating type hydraulic coupler comprises a first mounting ring, a second mounting ring and a sealing mechanism;

the first mounting ring is movably arranged above the second mounting ring, a first through hole and a second through hole are respectively formed above the first mounting ring and the second mounting ring, and the diameter of the first through hole is the same as that of the second through hole;

the sealing mechanism comprises a first sealing ring, a second sealing ring, a fixing plate, a sliding rod, a fastening spring and a connecting block, wherein the first sealing ring and the second sealing ring are movably arranged at the joint of the inner walls of the first through hole and the second through hole, the first sealing ring and the second sealing ring are semicircular, clamping blocks are fixedly arranged at two ends of the first sealing ring, placing grooves matched with the clamping blocks are respectively arranged at two ends of the second sealing ring, two groups of the clamping blocks are respectively and movably arranged in the two groups of the placing grooves, one end of the sliding rod penetrates through the first mounting ring, the second sealing ring and the clamping blocks and is fixedly arranged at one side of the fixing plate, the fixing plate is movably arranged below the joint of the first sealing ring and the second sealing ring, the connecting block is fixedly arranged at one end of the sliding rod far away from the fixing plate, and one end of the fastening spring is fixedly arranged at one side of the first mounting ring, the fastening spring is movably sleeved outside the sliding rod, and the other end of the fastening spring is fixedly arranged on one side of the connecting block.

Preferably, the sliding rods and the fixing plates are provided with two sets, each set of the sliding rods and the fixing plates comprises four sliding rods and four fixing plates, one end of one set of the sliding rods penetrates through the first mounting ring and is fixedly connected with one side of one set of the fixing plates, and one end of the other set of the sliding rods penetrates through the second mounting ring and is fixedly connected with one side of the other set of the fixing plates. Through setting up two sets of slide bars and fixed plate, be convenient for laminate first sealing washer and second sealing washer and the inner wall of first through-hole and second through-hole more.

Preferably, four of said sliding bars are distributed in a circumferential array about the first mounting ring.

Preferably, the top of the first mounting ring is fixedly provided with a pump impeller, and the bottom of the second mounting ring is fixedly provided with a protective shell.

Preferably, the top and the bottom of the first mounting ring and the second mounting ring are both provided with movable grooves, a screw rod is movably arranged above the first mounting ring, and a nut is fixedly arranged at the top of the screw rod.

Preferably, four activity grooves are run through to the bottom of screw rod, four the activity is provided with first sealed pad, the sealed pad of second, the sealed pad of third and the sealed pad of fourth respectively in the activity groove, the outside of screw rod is located to the sealed equal movable sleeve of pad, the sealed pad of second, the sealed pad of third and the sealed pad of fourth of first sealed pad. Through the first sealing gasket, the second sealing gasket, the third sealing gasket and the fourth sealing gasket which are arranged, the connection part of the screw rod and the first mounting ring and the connection part of the screw rod and the second mounting ring are convenient to seal.

Preferably, the outer portion of the screw rod is movably sleeved with a shaft sleeve, and the top of the shaft sleeve is movably arranged at the bottom of the second mounting ring. Through the axle sleeve that sets up, be convenient for carry out relatively fixed to the bottom of screw rod.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses in, through the sealing mechanism who sets up, fastening spring after the installation is compression state, first sealing washer and the equal activity of second sealing washer set up in the junction of first through-hole and second through-hole inner wall, the pump impeller during operation, first collar and second collar receive the impact force and take place certain deformation back, certain gap appears between first sealing washer and second sealing washer and first collar and the second collar, because fastening spring is the compression form, fastening spring outwards promotes the connecting block, because the outside activity of one end of slide bar, stimulate one side of connecting block to first collar, make first sealing washer and second sealing washer laminate with first collar and second collar respectively, the leakproofness of speed governing type hydraulic coupling has been improved.

Drawings

Fig. 1 is a perspective view of a sealing structure of a speed-regulating fluid coupling according to the present invention;

fig. 2 is a schematic view of a second mounting ring in the sealing structure of the speed-regulating fluid coupling according to the present invention;

fig. 3 is a schematic view of a first mounting ring in the sealing structure of the speed-regulating fluid coupling according to the present invention;

fig. 4 is an enlarged view of a portion a in fig. 3 according to the present invention.

In the figure: 1. a pump impeller; 2. a first mounting ring; 3. a second mounting ring; 4. a protective shell; 5. a shaft sleeve; 6. a nut; 7. a screw; 8. a first gasket; 9. a second gasket; 10. a third seal gasket; 11. a fourth gasket; 12. a first seal ring; 13. a second seal ring; 14. a clamping block; 15. a fixing plate; 16. a slide bar; 17. a fastening spring; 18. and (4) connecting the blocks.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Referring to fig. 1-4, the present invention relates to a sealing structure of a speed-adjustable fluid coupling, which comprises a first mounting ring 2, a second mounting ring 3 and a sealing mechanism;

the first mounting ring 2 is movably arranged above the second mounting ring 3, a first through hole and a second through hole are respectively formed above the first mounting ring 2 and the second mounting ring 3, and the diameter of the first through hole is the same as that of the second through hole;

the sealing mechanism comprises a first sealing ring 12, a second sealing ring 13, a fixing plate 15, a sliding rod 16, a fastening spring 17 and a connecting block 18, wherein the first sealing ring 12 and the second sealing ring 13 are movably arranged at the joint of the inner wall of the first through hole and the inner wall of the second through hole, the first sealing ring 12 and the second sealing ring 13 are both in a semicircular shape, clamping blocks 14 are fixedly arranged at both ends of the first sealing ring 12, placing grooves matched with the clamping blocks 14 are respectively formed at both ends of the second sealing ring 13, two groups of clamping blocks 14 are respectively and movably arranged in the two groups of placing grooves, one end of the sliding rod 16 penetrates through the first mounting ring 2, the second sealing ring 13 and the clamping blocks 14 and is fixedly arranged at one side of the fixing plate 15, the fixing plate 15 is movably arranged below the joint of the first sealing ring 12 and the second sealing ring 13, the connecting block 18 is fixedly arranged at one end of the sliding rod 16 far away from the fixing plate 15, one end of the fastening spring 17 is fixedly arranged at one side of the first mounting ring 2, the fastening spring 17 is movably sleeved outside the sliding rod 16, and the other end of the fastening spring 17 is fixedly arranged on one side of the connecting block 18.

The two sets of sliding rods 16 and the two sets of fixing plates 15 are arranged, the two sets of sliding rods 16 and the two sets of fixing plates 15 include four sliding rods 16 and four fixing plates 15, one end of one set of sliding rods 16 penetrates through the first mounting ring 2 and is fixedly connected with one side of one set of fixing plates 15, and one end of the other set of sliding rods 16 penetrates through the second mounting ring 3 and is fixedly connected with one side of the other set of fixing plates 15. Through setting up two sets of slide bars 16 and fixed plate 15, be convenient for laminate first sealing washer 12 and second sealing washer 13 with the inner wall of first through-hole and second through-hole more.

Wherein four sliding bars 16 are distributed in a circumferential array with respect to the first mounting ring 2.

Wherein, the top of first collar 2 is fixed and is provided with pump impeller 1, and the bottom of second collar 3 is fixed and is provided with protecting crust 4.

Wherein, the top and the bottom of first collar 2 and second collar 3 have all been seted up movable groove, and the top activity of first collar 2 is provided with screw rod 7, and the top of screw rod 7 is fixed and is provided with nut 6.

Wherein, four activity grooves are run through to the bottom of screw rod 7, and the activity is provided with first sealed pad 8, the sealed 9 of second, the sealed 10 of third and the sealed 11 of fourth that seals respectively in four activity grooves, and the outside of screw rod 7 is located to the equal movable sleeve of the sealed 9 of first sealed pad 8, second, the sealed 10 of third and the sealed 11 of fourth. Through the arrangement of the first sealing gasket 8, the second sealing gasket 9, the third sealing gasket 10 and the fourth sealing gasket 11, the connection part of the screw 7 and the first mounting ring 2 and the second mounting ring 3 is convenient to seal.

Wherein, the outside activity cover of screw rod 7 is equipped with axle sleeve 5, and the top activity of axle sleeve 5 sets up in the bottom of second collar 3. Through the shaft sleeve 5, the bottom of the screw 7 is fixed relatively.

The utility model discloses the theory of operation:

when the pump impeller 1 works, after the first mounting ring 2 and the second mounting ring 3 are subjected to certain deformation caused by impact force, a certain gap is formed between the first sealing ring 12 and the second sealing ring 13 and between the first mounting ring 2 and the second mounting ring 3, the fastening spring 17 is in a compression shape, the fastening spring 17 pushes the connecting block 18 outwards, and one end of the sliding rod 16 moves outwards to pull the connecting block 18 to one side of the first mounting ring 2, so that the first sealing ring 12 and the second sealing ring 13 are respectively attached to the first mounting ring 2 and the second mounting ring 3, the connection parts of the screw rod 7 and the first mounting ring 2 and the second mounting ring 3 are respectively sealed through the first sealing gasket 8, the second sealing gasket 9, the third sealing gasket 10 and the fourth sealing gasket 11, and the sealing performance of the coupler is further enhanced.

The foregoing shows and describes the basic principles and principal features of the invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A sealing structure of a speed-regulating type hydraulic coupler is characterized by comprising a first mounting ring (2), a second mounting ring (3) and a sealing mechanism;

the first mounting ring (2) is movably arranged above the second mounting ring (3), a first through hole and a second through hole are respectively formed above the first mounting ring (2) and the second mounting ring (3), and the diameter of the first through hole is the same as that of the second through hole;

the sealing mechanism comprises a first sealing ring (12), a second sealing ring (13), a fixing plate (15), a sliding rod (16), a fastening spring (17) and a connecting block (18), wherein the first sealing ring (12) and the second sealing ring (13) are movably arranged at the joint of the inner walls of the first through hole and the second through hole, the first sealing ring (12) and the second sealing ring (13) are both semicircular, clamping blocks (14) are fixedly arranged at both ends of the first sealing ring (12), placing grooves matched with the clamping blocks (14) are respectively formed at both ends of the second sealing ring (13), two groups of clamping blocks (14) are respectively and movably arranged in the two groups of placing grooves, one end of the sliding rod (16) penetrates through the first mounting ring (2), the second sealing ring (13) and the clamping blocks (14) and is fixedly arranged at one side of the fixing plate (15), fixed plate (15) activity sets up in the below of first sealing washer (12) and second sealing washer (13) junction, connecting block (18) are fixed to be set up in the one end that fixed plate (15) were kept away from in slide bar (16), the one end of fastening spring (17) is fixed to be set up in one side of first collar (2), the outside of slide bar (16) is located to fastening spring (17) movable sleeve, the other end of fastening spring (17) is fixed to be set up in one side of connecting block (18).

2. A seal structure of a speed governing type fluid coupling according to claim 1, wherein: the two groups of sliding rods (16) and the two groups of fixing plates (15) are arranged, each group of sliding rods (16) and each group of fixing plates (15) comprises four sliding rods (16) and four fixing plates (15), one end of one group of sliding rods (16) penetrates through the first mounting ring (2) and is fixedly connected with one side of one group of fixing plates (15), and one end of the other group of sliding rods (16) penetrates through the second mounting ring (3) and is fixedly connected with one side of the other group of fixing plates (15).

3. A seal structure of a speed governing type fluid coupling according to claim 1, wherein: the four sliding rods (16) are distributed in a circumferential array with respect to the first mounting ring (2).

4. A seal structure of a speed governing type fluid coupling according to claim 1, wherein: the pump impeller is characterized in that a pump impeller (1) is fixedly arranged at the top of the first mounting ring (2), and a protective shell (4) is fixedly arranged at the bottom of the second mounting ring (3).

5. The sealing structure of the speed regulation type fluid coupling according to claim 1, wherein: the movable grooves are formed in the top and the bottom of the first mounting ring (2) and the bottom of the second mounting ring (3), a screw rod (7) is movably arranged above the first mounting ring (2), and a nut (6) is fixedly arranged at the top of the screw rod (7).

6. A seal structure of a speed governing type fluid coupling according to claim 5, wherein: four movable grooves are run through to the bottom of screw rod (7), four the activity is provided with first sealed pad (8), the sealed pad of second (9), the sealed pad of third (10) and the sealed pad of fourth (11) respectively in the movable groove, the outside of screw rod (7) is located to the sealed pad of first (8), the sealed pad of second (9), the sealed pad of third (10) and the sealed equal movable sleeve of pad of fourth (11).

7. A seal structure of a speed governing type fluid coupling according to claim 6, wherein: the outer movable sleeve of the screw rod (7) is provided with a shaft sleeve (5), and the top of the shaft sleeve (5) is movably arranged at the bottom of the second mounting ring (3).