CN210106574U - Sealing structure capable of compensating machining error - Google Patents
Sealing structure capable of compensating machining error Download PDFInfo
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- CN210106574U CN210106574U CN201920777229.4U CN201920777229U CN210106574U CN 210106574 U CN210106574 U CN 210106574U CN 201920777229 U CN201920777229 U CN 201920777229U CN 210106574 U CN210106574 U CN 210106574U
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- pressing block
- sealing
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Abstract
A sealing structure capable of compensating machining errors mainly comprises a pressing shaft, a fixing seat, a pressing block, a disc spring and a nut; the center of the fixed seat is provided with a sleeve hole, the lower end surface of the fixed seat is provided with a shaft hole, and the nut, the disc spring and the pressing block are sequentially sleeved in the sleeve hole from top to bottom; the upper end of the pressing shaft is connected with the fixed seat, and the lower end of the pressing shaft penetrates through the shaft hole; a sealing cavity is formed among the pressing block, the pressing shaft and the sleeve hole, and sealing filler is filled in the sealing cavity; an orifice ring which is in clearance fit in an initial state is arranged at the intersection of the pressing block and the wall of the trepanning hole, and two ends of the orifice ring are folded to form a complete circle after the orifice ring is plugged into the trepanning hole; the pressure axle sets up the axle collar that initial condition is interference fit with shaft hole pore wall intersection, the axle collar cover is strutted at last back axle collar both ends of pressure axle and is formed complete circular, and this structural design science can realize also guaranteeing sealed effect under the circumstances that there is slight deviation in the spare part that mutually supports and seal.
Description
Technical Field
The utility model relates to a seal structure field that hole, axle and sealing filler constitute especially relates to a can compensate seal structure of machining error.
Background
The quality of a sealing structure consisting of the hole, the shaft and the sealing filler basically depends on the processing precision of the hole and the shaft, if the hole is too large or the shaft is too small, the sealing filler is extruded from a gap, the continuous extrusion of the filler in the use process finally causes leakage, and serious accidents can be caused in some occasions.
At present, machining and welding are main means for machining parts, welding can certainly cause deformation of the parts, machining can cause dimensional deviation due to human factors, and the deviation can directly affect sealing performance, so that the parts need to be reworked or even remanufactured in most cases, and great cost and time waste can be caused.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art's not enough, provide a structural design science, can realize also guaranteeing a kind of seal structure that can compensate machining error of sealed effect under the circumstances that there is slight deviation in the sealed spare part of mutually supporting.
For realizing the utility model provides the following technical scheme:
a sealing structure capable of compensating machining errors mainly comprises a pressing shaft, a fixing seat, a pressing block, a disc spring and a nut; the center of the fixed seat is provided with a sleeve hole, the lower end surface of the fixed seat is provided with a shaft hole, and the diameter of the sleeve hole is larger than that of the shaft hole; the nut, the disc spring and the pressing block are sequentially sleeved in the sleeve hole from top to bottom; the upper end of the pressing shaft is connected with the fixed seat, and the lower end of the pressing shaft penetrates through the shaft hole; a sealing cavity is formed among the pressing block, the pressing shaft and the sleeve hole, and sealing filler is filled in the sealing cavity; an orifice ring which is in clearance fit in an initial state is arranged at the intersection of the pressing block and the wall of the trepanning hole, and two ends of the orifice ring are folded to form a complete circle after the orifice ring is plugged into the trepanning hole; the pressure shaft sets up the axle collar that initial condition is interference fit with shaft hole pore wall intersection, the axle collar cover is propped open and is formed complete circular at last back axle collar both ends of pressure shaft, ring sum axle collar all sets up in sealed intracavity.
Further, the end parts of the collar and the hole ring are both inclined surfaces, and the inclined surfaces at the two ends are engaged.
Further, the collar and the grommet are both wire rings.
The utility model discloses an useful part:
firstly, the method comprises the following steps: the hole ring is arranged, the initial state of the hole ring is in clearance fit, and the diameter of the hole ring is larger than that of the trepanning, so that the two ends of the hole ring are folded to form a complete circle after the hole ring is plugged into the trepanning; the sealing filler is matched to seal the junction of the pressing block and the wall of the trepanning hole, so that the sealing effect is good;
secondly, the method comprises the following steps: the collar is arranged, the initial state of the collar is in interference fit, and the diameter of the collar is smaller than that of the pressing shaft, so that the two ends of the collar are expanded to form a complete circle after the collar is sleeved on the pressing shaft; the matched sealing filler is used for sealing the intersection of the pressing shaft and the hole wall of the shaft hole, so that the sealing effect is good;
thirdly, the method comprises the following steps: the end parts of the shaft collar and the hole ring are inclined planes, and the small size deviation of the hole walls of the pressing shaft and the shaft hole, the pressing block and the hole wall of the trepanning does not influence the steel wire ring to form a whole circle, so that the integral sealing effect is good.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is a schematic diagram of an initial state structure of the annular ring.
Fig. 4 is a structural diagram of the collar in an initial state.
In the figure: 1 is a pressing shaft, 2 is a fixed seat, 2.1 is a trepanning, 2.2 is a shaft hole, 3 is a pressing block, 4 is a disc spring, 5 is a nut, 6 is a sealing cavity, 7 is sealing filler, 8 is a hole ring, and 9 is a shaft ring.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
A can compensate the seal structure of the machining error, mainly include the pressure shaft 1, permanent seat 2, briquetting 3, disc spring 4 and nut 5; a sleeve hole 2.1 is formed in the center of the fixed seat 2, a shaft hole 2.2 is formed in the lower end face of the fixed seat, and the diameter of the sleeve hole 2.1 is larger than that of the shaft hole 2.2; the nut 5, the disc spring 6 and the pressing block 3 are sequentially sleeved in the trepanning 2.1 from top to bottom; the upper end of the pressing shaft 1 is connected with the fixed seat 3, and the lower end of the pressing shaft penetrates through the shaft hole 2.2; a sealing cavity 6 is formed among the pressing block 3, the pressing shaft 1 and the trepanning 2.1, and a sealing filler 7 is filled in the sealing cavity 6; an orifice ring 8 which is in clearance fit in an initial state is arranged at the intersection of the pressing block 3 and the wall of the trepanning 2.1, and after the orifice ring 8 is plugged into the trepanning 2.1, two ends of the orifice ring 8 are folded to form a complete circle; the joint of the press shaft 1 and the hole wall of the shaft hole 2.2 is provided with a shaft collar 9 in an interference fit initial state, the shaft collar 9 is sleeved on the press shaft 1, two ends of the shaft collar 9 are expanded to form a complete circle, the hole ring 8 and the shaft collar 9 are both arranged in the sealed cavity 6, the end parts of the shaft collar 9 and the hole ring 8 are both inclined planes, the inclined planes at the two ends are meshed, and the shaft collar 9 and the hole ring 8 are both steel wire rings.
This seal structure assembly mode:
the pressing shaft 1, the hole ring 8, the sealing filler 7, the shaft collar 9 and the pressing block 3 are combined together and are filled into the fixing seat 2, the pressing block 3 and the fixing seat 2 are pressed tightly by a pressing machine, the sealing filler cannot be extruded out of a gap under the action of the hole ring 8 and the shaft collar 9, the sealing performance can be guaranteed, and the disc spring 4 and the nut 5 are filled into the pressing block, so that looseness is prevented, and the pressing block is pressed tightly.
The present invention is not limited to the sealing structure capable of compensating for the processing error according to the above embodiments, and those skilled in the art can make various changes according to the above embodiments, but any changes equivalent or similar to the present invention are all covered by the scope of the claims of the present invention.
Claims (3)
1. A sealing structure capable of compensating machining errors mainly comprises a pressing shaft, a fixing seat, a pressing block, a disc spring and a nut; the method is characterized in that: the center of the fixed seat is provided with a sleeve hole, the lower end surface of the fixed seat is provided with a shaft hole, and the diameter of the sleeve hole is larger than that of the shaft hole; the nut, the disc spring and the pressing block are sequentially sleeved in the sleeve hole from top to bottom; the upper end of the pressing shaft is connected with the fixed seat, and the lower end of the pressing shaft penetrates through the shaft hole; a sealing cavity is formed among the pressing block, the pressing shaft and the sleeve hole, and sealing filler is filled in the sealing cavity; an orifice ring which is in clearance fit in an initial state is arranged at the intersection of the pressing block and the wall of the trepanning hole, and two ends of the orifice ring are folded to form a complete circle after the orifice ring is plugged into the trepanning hole; the pressure shaft sets up the axle collar that initial condition is interference fit with shaft hole pore wall intersection, the axle collar cover is strutted at last back axle collar both ends of pressure shaft and is formed complete circular, ring sum axle collar all sets up in sealed intracavity.
2. A sealing structure capable of compensating for a processing error according to claim 1, wherein: the end parts of the shaft collar and the hole ring are inclined planes, and the inclined planes at the two ends are meshed.
3. A sealing structure capable of compensating for a processing error according to claim 1 or 2, wherein: the collar and the ring are both wire rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920777229.4U CN210106574U (en) | 2019-05-28 | 2019-05-28 | Sealing structure capable of compensating machining error |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920777229.4U CN210106574U (en) | 2019-05-28 | 2019-05-28 | Sealing structure capable of compensating machining error |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210106574U true CN210106574U (en) | 2020-02-21 |
Family
ID=69561895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920777229.4U Active CN210106574U (en) | 2019-05-28 | 2019-05-28 | Sealing structure capable of compensating machining error |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210106574U (en) |
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2019
- 2019-05-28 CN CN201920777229.4U patent/CN210106574U/en active Active
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