CN209909161U

CN209909161U - Integrated mechanical sealing device

Info

Publication number: CN209909161U
Application number: CN201920068474.8U
Authority: CN
Inventors: 张家弟; 邹朝宣
Original assignee: ZIGONG NAISITE SEALING ELEMENT Co Ltd
Current assignee: ZIGONG NAISITE SEALING ELEMENT Co Ltd
Priority date: 2019-01-15
Filing date: 2019-01-15
Publication date: 2020-01-07
Anticipated expiration: 2029-01-15

Abstract

The utility model belongs to the technical field of the sealing member technique and specifically relates to a collection dress formula mechanical seal device, including the axle sleeve, axle sleeve lateral surface turn left from the right side and overlap respectively and have rotatory ring, stationary ring, throw-out collar and drive ring. The utility model discloses a collection dress formula mechanical seal device has little spring through the surface cover, annular gasket, the stud post, horizontal screw rod and adjusting nut come the throw-out collar, stationary ring and seal receptacle link together, it is sealed with rotatory ring laminating to act on stationary ring through the spring force with the throw-out collar, elastic action makes sealed face atress even, it is sealed reliable, also can reach operation requirement to the sealed of great diameter of axle, because the spring adopts stationary design, can satisfy the sealed requirement of higher rotational speed equipment, this sealing device possesses that the design size is less, the cost is lower, easy processing, and convenient assembling, easy adjustment, application scope is wide and long service life's advantage.

Description

Integrated mechanical sealing device

Technical Field

The utility model belongs to the technical field of the sealing member technique and specifically relates to a collection dress formula mechanical seal device.

Background

At present, general single-end face waterless cartridge mechanical seal device generally all adopts that big spring is external, no adjusting spring pressure device, the main problem is that big spring compensation performance is unstable, occupation space is great, it is shorter to have some equipment fixing size, just unable design, when the diameter of axle is great, need the thicker spring of design diameter, consequently also unable satisfying the designing requirement, during the compression of big spring, owing to need great compression capacity, so big spring is when the compression, the phenomenon of spring decentraction appears easily, lead to the sealed face inhomogeneous phenomenon of atress of rotating ring and quiet ring, influence mechanical seal's life, the compensatory nature is poor, also be not suitable for the higher equipment of rotational speed. There are limitations in designing a waterless mechanical seal.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve the problems in the prior art, an improved cartridge type mechanical seal device is provided to solve the problems in the prior art.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a collection dress formula mechanical seal device, includes the axle sleeve, axle sleeve lateral surface turn left from the right side and overlap respectively and have rotatory ring, stationary ring, throw-out collar and drive ring, stationary ring outside cover have a seal receptacle, drive ring outside cover have a stopper, seal receptacle left surface lower extreme seted up the assembly groove, the assembly groove medial surface on seted up internal thread assembly blind hole, the throw-out collar lateral surface correspond internal thread assembly blind hole position and seted up the internal thread assembly through-hole of built-in stud post, throw-out collar and seal receptacle between screw in internal thread assembly blind hole and the inside fixed connection of internal thread assembly through-hole respectively through the stud post, the stud post on lie in the throw-out collar outside cover and have a little spring, the stud post on lie in little spring left side threaded connection and have adjusting nut.

Furthermore, for fixed assembly, a first internal thread assembly hole is formed in the left end of the outer side surface of the shaft sleeve, a second internal thread assembly hole with a built-in first fixing bolt is formed in the outer side surface of the driving ring corresponding to the first internal thread assembly hole, and the driving ring is screwed into the first internal thread assembly hole through the first fixing bolt and is fixedly connected with the outer side surface of the shaft sleeve.

Furthermore, in order to fix the driving ring, a third internal thread assembly hole is formed in the upper surface of the driving ring, a fourth internal thread assembly hole matched with the third internal thread assembly hole is formed in the limiting block, a longitudinal bolt is connected to the internal thread of the fourth internal thread assembly hole in a threaded manner, and the limiting block is screwed into the third internal thread assembly hole through the longitudinal bolt and is fixedly connected with the upper surface of the driving ring.

Further, for mutual joint is fixed, the seal receptacle left surface on have bellied integrative structure L type mount left, the stopper in the top surface on seted up with mount matched with fixed mounting groove, the stopper pass through fixed mounting groove cover and fix with the seal receptacle joint on the mount.

Furthermore, in order to be installed in a matched mode, an annular gasket is sleeved on the stud column and located between the small spring and the adjusting nut.

Furthermore, in order to match and fix, the left side surface of the stationary ring is provided with an internal thread mounting blind hole, a fifth internal thread assembly hole with a built-in transverse screw is formed in the position, corresponding to the internal thread mounting blind hole, of the push ring, and the push ring is screwed into the internal thread mounting blind hole through the transverse screw and is fixedly connected with the stationary ring.

The beneficial effects of the utility model are that, the utility model discloses a collection dress formula mechanical seal device has little spring through the surface cover, annular gasket, the stud post, horizontal screw rod and adjusting nut come the throw-out collar, stationary ring and seal receptacle link together, it is sealed with rotatory ring laminating to act on the stationary ring through the spring force with the throw-out collar, elastic action makes sealed face atress even, it is sealed reliable, can reach operation requirement to the sealed of great diameter of axle also, because the spring adopts the design of stationary formula, can satisfy the sealed requirement of higher rotational speed equipment, and this mechanical seal device adopts no cold water design, so the equipment use in the area of specially adapted water resource shortage, this sealing device possesses that the design size is less, the cost is lower, easy processing, convenient assembling, easy adjustment, application scope is wide and long service life's advantage.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partial enlarged view of the assembling position of the stud bolt.

In the drawing, 1, a shaft sleeve, 2, a rotating ring, 3, a stationary ring, 4, a push ring, 5, a driving ring, 6, a sealing seat, 7, a limiting block, 8, an assembly groove, 9, an internal thread assembly blind hole, 10, a stud bolt column, 11, an internal thread assembly through hole, 12, a small spring, 13, an adjusting nut, 14, a first internal thread assembly hole, 15, a first fixing bolt, 16, a second internal thread assembly hole, 17, a third internal thread assembly hole, 18, a fourth internal thread assembly hole, 19, a longitudinal bolt, 20, a fixing frame, 21, a fixing installation groove, 22, an annular gasket, 23, an internal thread assembly blind hole, 24, a transverse screw rod and 25 are arranged.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

Fig. 1 and fig. 2 show a collection dress formula mechanical seal device, including axle sleeve 1, axle sleeve 1 lateral surface is turned left from the right side and is overlapped respectively and is had rotatory ring 2, stationary ring 3, throw-out collar 4 and drive ring 5, stationary ring 3 outside cover has seal receptacle 6, drive ring 5 outside cover has stopper 7, assembly groove 8 has been seted up to seal receptacle 6 left surface lower extreme, internal thread assembly blind hole 9 has been seted up on the assembly groove 8 medial surface, the internal thread assembly through-hole 11 of built-in stud post 10 has been seted up to the corresponding internal thread assembly blind hole 9 position of throw-out collar 4 lateral surface, screw in internal thread assembly blind hole 9 respectively and the inside fixed connection of internal thread assembly through-hole 11 through stud post 10 between throw-out collar 4 and the cover of locating on stud post 10 has little spring 12, the threaded connection has adjusting nut 13 on the stud post 10 left side of little spring 12.

Further, for fixed assembly, the left end of the outer side surface of the shaft sleeve 1 is provided with a first internal thread assembly hole 14, the outer side surface of the drive ring 5 is provided with a second internal thread assembly hole 16 with a built-in first fixing bolt 15 at a position corresponding to the first internal thread assembly hole 14, the drive ring 5 is screwed into the first internal thread assembly hole 14 through the first fixing bolt 15 and fixedly connected with the outer side surface of the shaft sleeve 1, further, for installation and fixation, the upper surface of the drive ring 5 is provided with a third internal thread assembly hole 17, the limit block 7 is provided with a fourth internal thread assembly hole 18 matched with the third internal thread assembly hole 17, the inner part of the fourth internal thread assembly hole 18 is in threaded connection with a longitudinal bolt 19, the limit block 7 is screwed into the third internal thread assembly hole 17 through the longitudinal bolt 19 and fixedly connected with the upper surface of the drive ring 5, further, for mutual clamping and fixation, the left side surface of, the inner top surface of the limiting block 7 is provided with a fixing mounting groove 21 matched with the fixing frame 20, the limiting block 7 is sleeved on the fixing frame 20 through the fixing mounting groove 21 and is clamped and fixed with the sealing seat 6, further, for matching installation, an annular gasket 22 is sleeved on the double-headed bolt column 10 between the small spring 12 and the adjusting nut 13, further, for matching fixation, the left side surface of the static ring 3 is provided with an internal thread installation blind hole 23, a fifth internal thread assembly hole 25 with a built-in transverse screw 24 is arranged on the push ring 4 corresponding to the internal thread installation blind hole 23, the push ring 4 is screwed into the internal thread installation blind hole 23 through the transverse screw 24 and is fixedly connected with the static ring 3, the integrated mechanical sealing device of the utility model connects the push ring 4, the static ring 3 and the sealing seat 6 together through the surface sleeve with the small spring 12, the annular gasket 22, the double-headed bolt column 10, the transverse screw 24 and the adjusting, will push away the ring 4 effect through the spring force and seal with rotatory ring 5 laminating on stationary ring 3, the elastic action makes sealed face atress even, it is sealed reliable, also can reach operation requirement to the sealed of great diameter of axle, because the spring adopts static formula design, can satisfy the sealed requirement of higher rotational speed equipment, this mechanical seal device adopts the design of no cold water moreover, so the equipment use in the area of specially adapted water resource shortage, this sealing device possesses that the design size is less, the cost is lower, easy processing, convenient assembling, easy regulation, application scope is wide and long service life's advantage.

The push ring 4 is arranged in the seal seat 6, a plurality of inner R-shaped grooves are designed on the seal seat 6, the outer circle of the push ring 4 is provided with outer R-shaped grooves with the same number as the seal seat 6, so that the push ring 4 can slide in the seal seat 6 and can be prevented from rotating, a transverse screw 24 with the connection rotation prevention function is designed between the push ring 4 and the stationary ring 3, a plurality of screw holes are designed on the seal seat 6, one end of a stud column 10 is fixed on the seal, a small spring 12 penetrates through the stud column 10 and is sleeved between the push ring 4 and an annular gasket 22, and an adjusting nut 13 is arranged behind the annular gasket 22. A plurality of studs and springs are installed according to the figure, as the whole mechanical sealing device is installed, when the driving ring 5 drives the shaft sleeve 1 (the driving ring 5 is arranged on the shaft sleeve 1) to rotate, the static ring 3 and the small spring 12 are fixed, the sealing seat 6 is fixed, the stud column 10 is fixed on the sealing seat 6 as the sealing seat 6 is fixed, the push ring 4 can move on the sealing seat 6 and the stud column 10, the annular gasket 22 and the adjusting nut 13 are fixed behind the small spring 12, the spring force completely acts on the push ring 4, the push ring 4 can slide on the sealing seat 6 and the stud column 10, the push ring 4 and the static ring 3 are connected together, and therefore all the spring force acts on the static ring 3 through the push ring 4 again to enable the sealing effect between the dynamic ring and the static ring to be realized. When spring pressure needs to be adjusted, because the adjusting nut 13 is completely externally arranged in the atmosphere, so, only equipment needs to be stopped, the adjusting nut 13 is rotated to increase or reduce the spring pressure, and therefore the purpose of adjusting the mechanical sealing spring pressure under the condition that the equipment is not disassembled is achieved

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a collection dress formula mechanical seal device, includes axle sleeve (1), characterized by: the outer side surface of the shaft sleeve (1) is respectively sleeved with a rotating ring (2), a stationary ring (3), a push ring (4) and a driving ring (5) from right to left, the outer side of the stationary ring (3) is sleeved with a sealing seat (6), the outer side of the driving ring (5) is sleeved with a limiting block (7), the lower end of the left side surface of the sealing seat (6) is provided with an assembling groove (8), the inner side surface of the assembling groove (8) is provided with an internal thread assembling blind hole (9), the outer side surface of the push ring (4) is provided with an internal thread assembling through hole (11) with a built-in double-head bolt column (10) corresponding to the internal thread assembling blind hole (9), the push ring (4) and the sealing seat (6) are respectively screwed into the internal thread assembling blind hole (9) through the double-head bolt column (10) to be fixedly connected with the internal thread assembling through hole (11), the double-head bolt column (10) is, an adjusting nut (13) is in threaded connection with the left side of the small spring (12) on the stud column (10).

2. A unit type mechanical seal device according to claim 1, wherein: the left end of the outer side face of the shaft sleeve (1) is provided with a first internal thread assembly hole (14), the position of the outer side face of the driving ring (5), corresponding to the first internal thread assembly hole (14), is provided with a second internal thread assembly hole (16) internally provided with a first fixing bolt (15), and the driving ring (5) is screwed into the first internal thread assembly hole (14) through the first fixing bolt (15) and is fixedly connected with the outer side face of the shaft sleeve (1).

3. A unit type mechanical seal device according to claim 1, wherein: the upper surface of the driving ring (5) is provided with a third internal thread assembling hole (17), the limiting block (7) is provided with a fourth internal thread assembling hole (18) matched with the third internal thread assembling hole (17), the internal thread of the fourth internal thread assembling hole (18) is connected with a longitudinal bolt (19), and the limiting block (7) is screwed into the third internal thread assembling hole (17) through the longitudinal bolt (19) and is fixedly connected with the upper surface of the driving ring (5).

4. A unit type mechanical seal device according to claim 1, wherein: seal receptacle (6) left surface on have bellied integrative structure L type mount (20) left, stopper (7) interior top surface on seted up with mount (20) matched with fixed mounting groove (21), stopper (7) cover fixed with seal receptacle (6) joint on mount (20) through fixed mounting groove (21).

5. A unit type mechanical seal device according to claim 1, wherein: an annular gasket (22) is sleeved on the stud column (10) and is positioned between the small spring (12) and the adjusting nut (13).

6. A unit type mechanical seal device according to claim 1, wherein: the left side surface of the static ring (3) is provided with an internal thread mounting blind hole (23), the push ring (4) is provided with a fifth internal thread assembling hole (25) with a built-in transverse screw (24) at a position corresponding to the internal thread mounting blind hole (23), and the push ring (4) is screwed into the internal thread mounting blind hole (23) through the transverse screw (24) and is fixedly connected with the static ring (3).