CN221003753U - Novel spring compensation rotary shaft seal structure - Google Patents
Novel spring compensation rotary shaft seal structure Download PDFInfo
- Publication number
- CN221003753U CN221003753U CN202322711877.9U CN202322711877U CN221003753U CN 221003753 U CN221003753 U CN 221003753U CN 202322711877 U CN202322711877 U CN 202322711877U CN 221003753 U CN221003753 U CN 221003753U
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- 238000007789 sealing Methods 0.000 claims abstract description 56
- 229920001971 elastomer Polymers 0.000 claims description 10
- 239000000806 elastomer Substances 0.000 claims description 10
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000000843 powder Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The utility model provides a novel spring compensation rotary shaft seal structure, which comprises the following components: the inner stator is used for being connected with the equipment end base; the compensating assembly comprises an outer stator, a connecting body, a spring and a limiting body, wherein one end of the connecting body is connected with the inner stator, the other opposite end of the connecting body penetrates through the outer stator to extend to one side far away from the inner stator, the outer stator can slide on the connecting body along the axis of a rotating main shaft of the equipment, the limiting body is arranged on the connecting body in a sliding manner, and two ends of the spring are respectively connected with the limiting body and the outer stator; the rotor assembly is positioned between the inner stator and the compensation assembly and is used for being connected with a rotating main shaft of the equipment, and two sides of the rotor assembly form sealing surfaces on the inner stator and the compensation assembly respectively. When the sealing device is used, the spring continuously provides a pressing force for the sealing surface to compensate the abrasion of the sealing surface, so that the sealing performance is effectively ensured, and the service life is effectively prolonged.
Description
Technical Field
The utility model relates to the field of sealing, in particular to a novel spring compensation rotary shaft seal structure.
Background
The domestic rotary shaft seal is generally applicable to the powder stirring industry, and at present, filler sealing, hard sealing and full-contact soft face sealing are generally adopted in the market.
The packing seal is low in price, but can abrade and fall scraps, seriously affect the quality of powder, and damage a main shaft. Resulting in immeasurable losses. The hard seal is widely applied in the fluid industry, but in the field of powder sealing, powder can enter the seal quickly (within 1 week) and is difficult to maintain, the effect is very poor, and in addition, the cost of the hard seal is high.
The full-contact soft surface seal can effectively solve the problems encountered in the use process of the two seals, but has the advantages of severe working conditions (high temperature and high spindle rotating speed) and no need of frequent disassembly, obviously reduced sealing performance and greatly reduced service life. In order to effectively solve the problem, a seal structure is redesigned by combining soft face seal, filler seal and hard seal.
Disclosure of utility model
Aiming at the defects in the prior art, the novel spring compensation rotary shaft seal structure provided by the utility model is used for improving the sealing performance and prolonging the service life of the seal under severe working conditions.
The utility model provides a novel spring compensation rotary shaft seal structure, which comprises the following components:
the inner stator is used for being connected with the equipment end base;
The compensating assembly comprises an outer stator, a connecting body, a spring and a limiting body, wherein one end of the connecting body is connected with the inner stator, the other opposite end of the connecting body penetrates through the outer stator to extend to one side far away from the inner stator, the outer stator can slide on the connecting body along the axis of a rotating main shaft of the equipment, the limiting body is arranged on the connecting body in a sliding manner, and two ends of the spring are respectively connected with the limiting body and the outer stator;
The rotor assembly is positioned between the inner stator and the compensation assembly and is used for being connected with a rotating main shaft of the equipment, and two sides of the rotor assembly form sealing surfaces on the inner stator and the compensation assembly respectively.
Optionally, the connecting body is a threaded rod, and the limiting body is a nut matched with the threaded rod.
Optionally, the compensation component further comprises a sleeve, the sleeve is sleeved on the connecting body, and two ends of the sleeve are respectively connected with the limiting body and the spring.
Optionally, the rotor assembly comprises a driving elastomer and two rotors, wherein the driving elastomer is used for enclasping the rotating main shaft of the equipment, and the two rotors are respectively arranged at two ends of the driving elastomer.
Optionally, the motor further comprises an inner replaceable stator and an outer replaceable stator, wherein the inner replaceable stator is positioned between the rotor assembly and the inner stator and is detachably connected with the inner stator, and the outer replaceable stator is positioned between the rotor assembly and the outer stator and is detachably connected with the outer stator.
Optionally, a groove is formed in the inner replaceable stator, a sealing boss is arranged on the rotor close to the inner replaceable stator, and the sealing boss is embedded in the groove.
Optionally, the rotary spindle comprises a lip-shaped sealing ring, wherein the inner stator is provided with a shaft hole for accommodating the rotary spindle of the equipment, the lip-shaped sealing ring is arranged in the shaft hole, and the lip-shaped sealing ring is sleeved on the rotary spindle of the equipment.
According to the technical scheme, the beneficial effects of the utility model are as follows: the utility model provides a novel spring compensation rotary shaft seal structure, which comprises the following components: the inner stator is used for being connected with the equipment end base; the compensating assembly comprises an outer stator, a connecting body, a spring and a limiting body, wherein one end of the connecting body is connected with the inner stator, the other opposite end of the connecting body penetrates through the outer stator to extend to one side far away from the inner stator, the outer stator can slide on the connecting body along the axis of a rotating main shaft of the equipment, the limiting body is arranged on the connecting body in a sliding manner, and two ends of the spring are respectively connected with the limiting body and the outer stator; the rotor assembly is positioned between the inner stator and the compensation assembly and is used for being connected with a rotating main shaft of the equipment, and two sides of the rotor assembly form sealing surfaces on the inner stator and the compensation assembly respectively. When the sealing device is used, the spring continuously provides a pressing force for the sealing surface to compensate the abrasion of the sealing surface, so that the sealing performance is effectively ensured, and the service life is effectively prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a schematic diagram of the structure of the present utility model;
Fig. 2 is a schematic perspective view of the present utility model.
Reference numerals:
1-inner stator, 2-compensation component, 3-rotor component, 4-inner exchangeable stator, 5-outer exchangeable stator, 6-lip seal ring, 7-O-ring, 12-outer stator, 22-connector, 23-spring, 24-limiter, 25-sleeve, 31-driving elastomer, 32-rotor.
Detailed Description
Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.
Referring to the drawings, the present embodiment provides a novel spring compensating rotary shaft seal structure, which includes:
The inner stator 1 is used for being connected with the equipment end base;
The compensating assembly 2 comprises an outer stator 12, a connecting body 22, a spring 23 and a limiting body 24, wherein one end of the connecting body is connected with the inner stator, the other opposite end of the connecting body penetrates through the outer stator to extend to one side far away from the inner stator, the outer stator can slide on the connecting body along the axis of a rotating main shaft of the equipment, the limiting body is arranged on the connecting body in a sliding manner, and two ends of the spring are respectively connected with the limiting body and the outer stator;
The rotor assembly 3 is located between the inner stator and the compensation assembly and is used for being connected with the equipment rotating main shaft, the rotor assembly 3 comprises a driving elastomer 31 and two rotors 32, the driving elastomer is used for holding the equipment rotating main shaft tightly, and the two rotors are respectively arranged at two ends of the driving elastomer. The two rotors 32 form sealing surfaces in the inner stator and the compensating assembly, respectively. The rotor close to one side of the inner stator is an inner rotor, and the rotor close to one side of the outer stator is an outer rotor.
The motor further comprises an inner replaceable stator 4 and an outer replaceable stator 5, wherein the inner replaceable stator is positioned between the rotor assembly and the inner stator and is detachably connected with the inner stator through bolts, and the outer replaceable stator is positioned between the rotor assembly and the outer stator and is detachably connected with the outer stator through bolts. Through bolted connection, convenient to detach increases interior removable stator 4 and outer removable stator 5, when wearing and tearing appear, can quick replacement, effectively guaranteed the operation of equipment, and replacement cost is lower.
When the rotary main shaft of the equipment rotates, the two rotors 32 and the inner and outer replaceable stators rotationally rub to form sealing surfaces by virtue of the pressing force of the inner and outer stators. The spring continuously provides pressing force for the rotary sealing surfaces of the inner rotor and the outer rotor, the abrasion of the sealing surfaces is compensated, the stable operation of the sealing is ensured, and the sealing performance and the service life are effectively ensured.
As a further improvement to the above technical solution, the compensation assembly further includes a sleeve 25, the sleeve is sleeved on the connector, and two ends of the sleeve are respectively connected with the limiting body and the spring. The connector is a threaded rod, and the limiting body is a nut matched with the threaded rod. The pressure is adjusted by rotating the nut, the operation is convenient, the spring and the nut are separated by the sleeve, and the spring and the nut are prevented from interfering when the adjustment is convenient. In addition, the pressing force of the sealing surface can be regulated through the nut in the running process of the equipment, and the sealing is not required to be disassembled, so that the running of the equipment is effectively ensured. In order to prevent the nut from turning when the machine rotating spindle is rotated, a washer is mounted between the nut and the sleeve 25.
As a further improvement to the technical scheme, the inner replaceable stator is provided with a groove, the rotor close to the inner replaceable stator is provided with a sealing boss, namely the inner rotor is provided with a sealing boss, and the sealing boss is embedded into the groove. The inner rotor and the inner replaceable stator are in concave-convex close fit, so that the probability of powder entering the sealing cavity can be effectively blocked, and the sealing performance and the service life are effectively ensured. In this embodiment, the groove is disposed on the inner rotor, and the boss is disposed on the inner replaceable stator. The technical effect of the utility model can be achieved as well.
The rotary spindle comprises an inner stator, a spindle hole for accommodating the rotary spindle of the equipment, and a lip-shaped sealing ring 6, wherein the lip-shaped sealing ring is arranged in the spindle hole and sleeved on the rotary spindle of the equipment. The shaft hole of the inner stator is provided with the mounting groove for mounting the lip-shaped sealing ring, and the lip-shaped sealing ring can effectively block the probability of powder entering the sealing cavity, so that the sealing performance is effectively ensured, and the service life is effectively prolonged.
The novel inner stator is characterized by further comprising a plurality of O-shaped sealing rings 7, wherein the inner stator is connected with the equipment end base through separate bolts and is sealed with the equipment end base through the O-shaped sealing rings, the O-shaped sealing rings are arranged between the inner stator and the inner replaceable stator 4, and the O-shaped sealing rings are arranged on the outer rotor and the outer replaceable stator 5, so that the stability of sealing operation under complex working conditions is ensured, and the sealing performance and the service life are effectively ensured.
In another embodiment of the utility model, the connecting body is a rod-shaped body, the limiting body comprises a sliding block and a locking screw, the sliding block is arranged on the rod-shaped body, a threaded hole matched with the locking screw is formed in the sliding block, and the locking screw is abutted to the rod-shaped body through the threaded hole. The inner stator and the equipment end base are connected through separate bolts, and the inner stator and the outer stator are connected through separate bolts, so that stability of sealing operation under complex working conditions is guaranteed, and sealing performance and service life are effectively guaranteed. All bolts are sealed by special glue, so that the tightening torque of the bolts is unchanged under the vibration condition of the equipment, and the sealing performance and the service life are effectively ensured.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.
Claims (7)
1. The utility model provides a novel spring compensation rotation shaft seal structure which characterized in that includes:
the inner stator is used for being connected with the equipment end base;
The compensating assembly comprises an outer stator, a connecting body, a spring and a limiting body, wherein one end of the connecting body is connected with the inner stator, the other opposite end of the connecting body penetrates through the outer stator to extend to one side far away from the inner stator, the outer stator can slide on the connecting body along the axis of a rotating main shaft of the equipment, the limiting body is arranged on the connecting body in a sliding manner, and two ends of the spring are respectively connected with the limiting body and the outer stator;
The rotor assembly is positioned between the inner stator and the compensation assembly and is used for being connected with a rotating main shaft of the equipment, and two sides of the rotor assembly form sealing surfaces on the inner stator and the compensation assembly respectively.
2. The novel spring-compensated rotary shaft seal structure according to claim 1, wherein: the connector is a threaded rod, and the limiting body is a nut matched with the threaded rod.
3. The novel spring-compensated rotary shaft seal structure according to claim 2, wherein: the compensation assembly further comprises a sleeve, the sleeve is sleeved on the connecting body, and two ends of the sleeve are respectively connected with the limiting body and the spring.
4. The novel spring-compensated rotary shaft seal structure according to claim 1, wherein: the rotor assembly comprises a driving elastomer and two rotors, wherein the driving elastomer is used for enclasping a rotating main shaft of the equipment, and the two rotors are respectively arranged at two ends of the driving elastomer.
5. The novel spring-compensated rotary shaft seal structure according to claim 4, wherein: the motor further comprises an inner replaceable stator and an outer replaceable stator, wherein the inner replaceable stator is positioned between the rotor assembly and the inner stator and is detachably connected with the inner stator, and the outer replaceable stator is positioned between the rotor assembly and the outer stator and is detachably connected with the outer stator.
6. The novel spring-compensated rotary shaft seal structure according to claim 5, wherein: the inner replaceable stator is provided with a groove, a rotor close to the inner replaceable stator is provided with a sealing boss, and the sealing boss is embedded into the groove.
7. The novel spring-compensated rotary shaft seal structure according to claim 1, wherein: the rotary main shaft comprises an inner stator, a shaft hole for accommodating the rotary main shaft of the equipment is formed in the inner stator, the lip-shaped sealing ring is arranged in the shaft hole, and the lip-shaped sealing ring is sleeved on the rotary main shaft of the equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322711877.9U CN221003753U (en) | 2023-10-10 | 2023-10-10 | Novel spring compensation rotary shaft seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322711877.9U CN221003753U (en) | 2023-10-10 | 2023-10-10 | Novel spring compensation rotary shaft seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221003753U true CN221003753U (en) | 2024-05-24 |
Family
ID=91091692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322711877.9U Active CN221003753U (en) | 2023-10-10 | 2023-10-10 | Novel spring compensation rotary shaft seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221003753U (en) |
-
2023
- 2023-10-10 CN CN202322711877.9U patent/CN221003753U/en active Active
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