CN213176190U - Mechanical sealing device with cooling liquid - Google Patents
Mechanical sealing device with cooling liquid Download PDFInfo
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- CN213176190U CN213176190U CN202021971042.7U CN202021971042U CN213176190U CN 213176190 U CN213176190 U CN 213176190U CN 202021971042 U CN202021971042 U CN 202021971042U CN 213176190 U CN213176190 U CN 213176190U
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- static ring
- small hole
- cooling liquid
- ring seat
- hole
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Abstract
The utility model provides a mechanical sealing device with cooling liquid, a static ring seat cushion bed is arranged on the end surface of a pump cover, a static ring seat is pressed on the pump cover by a static ring seat pressing plate and corresponds to the static ring seat cushion bed, a static ring is arranged on the static ring seat by two static ring O-shaped rings, one end surface of the static ring is opposite to the static ring seat cushion bed, the other end surface is provided with a U-shaped groove and is opposite to a movable ring, and the movable ring is arranged in a movable ring component; a first small hole and a second small hole are axially processed at a certain angle in a U-shaped groove of the static ring, two third small holes and a fourth small hole are radially processed at corresponding positions of the first small hole and the second small hole, the first small hole is communicated with the third small holes, the second small hole is communicated with the fourth small holes, a first threaded hole and a second threaded hole are respectively formed in the static ring seat corresponding to the third small holes and the fourth small holes, the first threaded hole is connected with a cooling liquid inlet pipe connector, and the second threaded hole is connected with a cooling liquid outlet pipe connector. The utility model discloses the structure is more reasonable, processing is more convenient, sealed effect is better.
Description
Technical Field
The utility model relates to a seal, especially a mechanical seal device with coolant liquid, the device can effectively solve some shortcomings of parallel double mechanical seal before, improves sealed reliability.
Technical Field
The patent No. 201220459593.4 provides a mechanical sealing device capable of adding cooling liquid, which comprises a static ring pressure plate, a cooling liquid inlet pipe and joint, a cooling liquid outlet pipe and joint, a dynamic ring assembly, a dynamic ring and a static ring. The cooling liquid inlet pipe is communicated with the cooling liquid inlet pipe, the cooling liquid outlet pipe is communicated with the cooling liquid outlet pipe, and the cooling liquid outlet pipe is communicated with the cooling liquid outlet pipe. Therefore, the fluidity of the cooling liquid in the water cavity is ensured, the heat generated at the sealing surface can be taken away, and the sealing reliability is improved.
However, the mechanical sealing device of this patent has two disadvantages:
1. the static ring is positioned on the pump cover by the static ring cushion bed and the static ring pressing plate, and due to the structural design, the static ring is fixed and cannot float, and the static ring always has deviation relative to the verticality of the main shaft due to unavoidable precision errors in part machining and part assembly, so that the sealing effect of the dynamic ring and the static ring is not too good, and the risk of water leakage exists.
2. Two joints of cooling liquid are arranged on a static ring, and the static ring is made of silicon carbide, so that the thread machining on the static ring of the silicon carbide is very difficult, and the yield is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defects of the mechanical seal and providing an improved mechanical seal device which is more reasonable in structure, more convenient to process and better in sealing effect and can be added with cooling liquid.
The specific technical scheme is as follows:
a mechanical sealing device with cooling liquid is characterized in that a static ring seat cushion bed is arranged on the end face of a pump cover, a static ring seat is pressed on the pump cover by a static ring seat pressing plate and corresponds to the static ring seat cushion bed, a static ring is arranged on the static ring seat through two static ring O-shaped rings, one end face of the static ring is opposite to the static ring seat cushion bed, the other end face of the static ring is provided with a U-shaped groove and is opposite to a movable ring, and the movable ring is arranged in a movable ring assembly;
a first small hole and a second small hole are axially processed at a certain angle in a U-shaped groove of the static ring, two third small holes and a fourth small hole are radially processed at corresponding positions of the first small hole and the second small hole, the first small hole is communicated with the third small holes, the second small hole is communicated with the fourth small holes, a first threaded hole and a second threaded hole are respectively formed in the static ring seat corresponding to the third small holes and the fourth small holes, the first threaded hole is connected with a cooling liquid inlet pipe connector, and the second threaded hole is connected with a cooling liquid outlet pipe connector.
The static ring of the utility model is not directly positioned on the pump cover by the static ring cushion bed and the static ring pressing plate, the static ring seat is positioned on the pump cover by the static ring cushion bed and the static ring pressing plate, and the static ring is positioned on the static ring seat by two static ring O-shaped rings, because the static ring O-shaped rings can be compressed and deformed, the static ring can float, the verticality deviation caused by processing and assembling can be eliminated, and the sealing surface of the dynamic and static ring is more fit; in addition, the cooling liquid inlet pipe joint and the cooling liquid outlet pipe joint are arranged on the static ring seat instead of being arranged on the static ring, and the static ring seat is convenient to machine threads, so that the difficulty of machining threads on the silicon carbide static ring is avoided, and the structure is more reasonable, the machining is more convenient, and the sealing effect is better.
Drawings
Fig. 1 is a schematic sectional structure of the present invention;
fig. 2 is a schematic view of the cross-sectional structure a-a of the present invention.
Detailed Description
The specific technical solution of the present invention will be described with reference to the embodiments.
As shown in fig. 1 and 2, in a mechanical sealing device with cooling liquid, a stationary ring seat cushion 9 is arranged on the end surface of a pump cover 10, a stationary ring seat 3 is pressed on the pump cover 10 by a stationary ring seat pressing plate 1 and corresponds to the stationary ring seat cushion 9, a stationary ring 7 is arranged on the stationary ring seat 3 through two stationary ring O-rings 8, one end surface of the stationary ring 7 is opposite to the stationary ring seat cushion 9, the other end surface is provided with a U-shaped groove and is opposite to a movable ring 5, and the movable ring 5 is arranged in a movable ring assembly 4;
a first small hole a and a second small hole b are axially processed at a certain angle in a U-shaped groove of the static ring 7, two third small holes c and a fourth small hole d are radially processed at corresponding positions of the first small hole a and the second small hole b, the first small hole a is communicated with the third small hole c, the second small hole b is communicated with the fourth small hole d, a first threaded hole e and a second threaded hole f are respectively arranged on the static ring seat 3 corresponding to the third small hole c and the fourth small hole d, the first threaded hole e is connected with the cooling liquid inlet pipe connector 2, and the second threaded hole f is connected with the cooling liquid outlet pipe connector 6.
Thus, the coolant inlet pipe joint 2 reaches the coolant outlet pipe joint 6 through the first threaded hole e → the third small hole c → the first small hole a → the U-shaped groove → the second small hole b → the fourth small hole d → the second threaded hole f, thereby forming an inlet and outlet passage for the coolant, taking away heat generated by sealing, and improving the reliability of sealing.
Firstly, quiet ring 7 is adorned on quiet ring holder 3 through two quiet ring O shape circles 8, because the material of quiet ring O shape circle 8 is the elasticity of rubber, so quiet ring 7 can be in the state of floating, can compensate the processing and the assembly error of part, guarantees the straightness that hangs down of quiet ring 7 to the main shaft, makes the sealed face of quiet ring more laminate, has improved sealed reliability.
Secondly, the cooling liquid inlet pipe joint 2 and the cooling liquid outlet pipe joint 6 are both arranged on the static ring seat 3, and threads are conveniently machined on the static ring seat 3. Fit clearance between quiet ring seat 3 and quiet ring 7 is very little, in addition, the sealed effect of two quiet ring O shape circles 8, by quiet ring 7 like this, quiet ring seat 3, the space that forms between two quiet ring O shape circles 8 is just very little, only a very small amount of cooling water flows in this space, most cooling water all can be separated from the business turn over water hole a of certain angle processing from the U-shaped inslot on quiet ring 7, second aperture b flows the inflow, cool off and lubricate the sealed face of moving quiet ring, take away the heat that sealed production.
It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.
Claims (1)
1. A mechanical sealing device with cooling liquid is characterized in that a static ring seat cushion bed (9) is arranged on the end face of a pump cover (10), a static ring seat (3) is pressed on the pump cover (10) by a static ring seat pressing plate (1) and corresponds to the static ring seat cushion bed (9), a static ring (7) is arranged on the static ring seat (3) through two static ring O-shaped rings (8), one end face of the static ring (7) is opposite to the static ring seat cushion bed (9), the other end face of the static ring (7) is provided with a U-shaped groove and is opposite to a movable ring (5), and the movable ring (5) is arranged in a movable ring assembly (4);
a first small hole (a) and a second small hole (b) are axially processed in a U-shaped groove of the stationary ring (7) at a certain angle, two third small holes (c) and a fourth small hole (d) are radially processed at corresponding positions of the first small hole (a) and the second small hole (b), the first small hole (a) is communicated with the third small hole (c), and the second small hole (b) is communicated with the fourth small hole (d);
and a first threaded hole (e) and a second threaded hole (f) are respectively formed in the static ring seat (3) corresponding to the third small hole (c) and the fourth small hole (d), the first threaded hole (e) is connected with the cooling liquid inlet pipe joint (2), and the second threaded hole (f) is connected with the cooling liquid outlet pipe joint (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021971042.7U CN213176190U (en) | 2020-09-10 | 2020-09-10 | Mechanical sealing device with cooling liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021971042.7U CN213176190U (en) | 2020-09-10 | 2020-09-10 | Mechanical sealing device with cooling liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213176190U true CN213176190U (en) | 2021-05-11 |
Family
ID=75772616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021971042.7U Active CN213176190U (en) | 2020-09-10 | 2020-09-10 | Mechanical sealing device with cooling liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213176190U (en) |
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2020
- 2020-09-10 CN CN202021971042.7U patent/CN213176190U/en active Active
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