CN205155148U - Automatic sealing device of compensation wearing and tearing volume - Google Patents
Automatic sealing device of compensation wearing and tearing volume Download PDFInfo
- Publication number
- CN205155148U CN205155148U CN201520808524.3U CN201520808524U CN205155148U CN 205155148 U CN205155148 U CN 205155148U CN 201520808524 U CN201520808524 U CN 201520808524U CN 205155148 U CN205155148 U CN 205155148U
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- China
- Prior art keywords
- adjusting screw
- screw rod
- elastic medium
- indicating arm
- auto
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- Withdrawn - After Issue
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Abstract
The utility model relates to a sealing device, especially automatic sealing device of compensation wearing and tearing volume, the utility model discloses an automatic sealing device of compensation wearing and tearing volume, its adjusting screw constitutes screw thread fit connection with sealed letter, the adjusting screw lower extreme supports and pushes down the gasket upper surface, and the gasket lower surface compresses tightly elastic medium, the gauge rod lower extreme constitutes fixed connection with the clamp plate upper surface, and the while gauge rod passes the through -hole in the middle of elastic medium, gasket and the adjusting screw in proper order, and gauge rod upper end protrusion sets up in adjusting screw upper end outside, the elastic medium lower extreme compresses tightly the clamp plate upper surface, and clamp plate lower surface press the sealing packs, and sealing filler is connected with the inseparable laminating of equipment surface component, the utility model discloses it is that a simple structure, use are reliable, the processing cost is low, the maintenance work volume is little among the technical scheme, to have adopted the auto -lock screw rod, taken spacing gauge rod and spring matched with innovation structure, the long just novel sealing device of high -usage of sealing filler replacement cycle.
Description
Technical field
The utility model relates to a kind of seal arrangement, particularly the seal arrangement of auto-compensation wear extent.
Background technique
Traditional seal arrangement does not have the wear extent automatic compensation function of sealing medium, even if newly devised the seal arrangement of some belt wear amounts compensation afterwards, but substantially all adopt the mode of spring compression, practical effect is undesirable; Simple spring compression type seal arrangement working principle forms sealing for utilizing spring force to make stuffing box packing fit tightly in equipment surface, the simultaneously wear extent of compensation sealing filler within the scope of the design runlength of spring, the elastic force of spring and stroke are the sealing effect and the key factor of stuffing box packing replacement cycle that affect seal arrangement, the elastic force scope reasonable interval that spring provides is fixing, elastic force crosses the wearing and tearing that stuffing box packing is accelerated in conference, and elastic force is too small, cannot realize effective sealing; The volume of seal arrangement is not easily excessive simultaneously, and the size Selection of spring exists narrow limitation; The seal arrangement utilizing merely spring structure used in actual production at present, early stage can effective sealing, but when stuffing box packing wear extent is greater than spring design stroke time, then cannot continue the sealing impacting force obtaining spring, sealing effect worsens, to such an extent as to seal failure, in order to ensure sealing effect, stuffing box packing needs frequent replacing, and utilization ratio is low, and conventional sealing apparatus cannot the good sealing of long term maintenance; Conventional sealing apparatus produces a lot of problems in actual production: first, and frequent filler of changing needs equipment frequently to stop transport, and causes operation rate low, less economical; Whether secondly, anticipation sealing can not lose efficacy, and can only change stuffing box packing after seal failure, material from leakage may cause the severe accident such as environmental pollution and personnel's injury; Again, repeated disassembled and assembled, maintenance workload is very large; Finally, stuffing box packing utilization ratio is low, needs a large amount of filler spare parts.
Model utility content
Technical problem to be solved in the utility model is to provide one and overcomes conventional sealing apparatus sealing effect instability, and stuffing box packing utilization ratio is low, changes frequent, the seal arrangement of the auto-compensation wear extent of the problem that maintenance workload is large.
For solving the problems of the technologies described above, the utility model realizes as follows: the seal arrangement designing a kind of auto-compensation wear extent, and it is made up of adjusting screw rod, sealed letter, indicating arm, pad, Elastic medium, pressing plate and stuffing box packing; Adjusting screw rod and sealed letter form screw-thread fit and are connected; Adjusting screw rod lower end compresses pad upper surface, and pad lower surface compresses Elastic medium; Indicating arm lower end forms with pressing plate upper surface and is fixedly connected with, and indicating arm is successively through the through hole in the middle of Elastic medium, pad and adjusting screw rod simultaneously, and indicating arm upper end protrudes that to be arranged at adjusting screw rod upper end outside; Elastic medium lower end clamping platen upper surface, pressing plate lower surface press seal filler, stuffing box packing forms to fit tightly with equipment surface and is connected.
Further, in order to ensure to lock stability, it is that self-locking thread engagement connects that described adjusting screw rod is connected with the screw-thread fit of sealed letter.
Further, conveniently adjust impacting force, recover the design decrement of Elastic medium, the upper head shape of described adjusting screw rod is the structure shape of pivot bottom screw rod of matching with staff.
Further, conveniently adjust impacting force, recover the design decrement of Elastic medium, the upper head shape of described adjusting screw rod is polygonal.
Further, conveniently adjust impacting force, recover the design decrement of Elastic medium, the upper head of described adjusting screw rod is the one in knob, handle.
Further, in order to locate firm and prevent Elastic medium overcompression, described indicating arm lower diameter is greater than upper diameter, and its cross section be step setting, and height during indicating arm lower height to be L, L with Elastic medium be in maximum working load is equal.
Further, in order to ensure that indicating arm has convex position to indicate scale and alert flag, the whole height of described indicating arm is not less than height, the thickness of pad and the entire length sum of adjusting screw rod of Elastic medium when designing minimum work loads.
Further, conveniently use, described Elastic medium is spring.
Further, conveniently use, described indicating arm upper design has scale or alert flag.
Good effect of the present utility model: in technical solutions of the utility model, the innovation structure have employed self-locking screw rod, matching with spacing indicating arm and spring, achieves the hommization of long-term lasting wear automatic-compensation mechanism and maintenance work; The impacting force change of spring intuitively can be understood by the scale of indicating arm projection.After pressing force of the spring reduces, screw rod screws the impacting force again can recovering spring, breaches the limitation that spring travel is limited, considerably increases the compensation stroke of seal arrangement.Thus the utilization ratio of stuffing box packing is significantly improved, the replacement cycle significant prolongation of stuffing box packing.The spacing design of indicating arm simultaneously can prevent spring overcompression again; spring is played a protective role; ensure the sealability of this device long-term stability; be a kind of structure simple, use reliable, processing cost is low, maintenance workload is little, stuffing box packing the replacement cycle long and new type sealing device that utilization ratio is high.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, not paying under the laborious prerequisite of creation, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of mode of execution of the present utility model
In figure, 1, adjusting screw rod; 2, sealed letter; 3, indicating arm; 4, pad; 5, Elastic medium; 6, pressing plate; 7, stuffing box packing; 8, equipment surface.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearly understand, below in conjunction with embodiment and accompanying drawing, the utility model is described in further details.At this, exemplary embodiment of the present utility model and illustrating for explaining the utility model, but not as to restriction of the present utility model.
The seal arrangement of a kind of auto-compensation wear extent as shown in Figure 1, it is made up of adjusting screw rod 1, sealed letter 2, indicating arm 3, pad 4, Elastic medium 5, pressing plate 6 and stuffing box packing 7; Adjusting screw rod 1 forms screw-thread fit with sealed letter 2 and is connected; Adjusting screw rod 1 lower end compresses pad 4 upper surface, and pad 4 lower surface compresses Elastic medium 5; Indicating arm 3 lower end forms with pressing plate 6 upper surface and is fixedly connected with, and indicating arm 3 is successively through the through hole in the middle of Elastic medium 5, pad 4 and adjusting screw rod 1 simultaneously, and indicating arm 3 upper end protrudes that to be arranged at adjusting screw rod 1 upper end outside; Elastic medium 5 lower end clamping platen 6 upper surface, pressing plate 6 lower surface press seal filler 7, stuffing box packing 7 forms to fit tightly with equipment surface and is connected.
Further, in order to ensure to lock stability, it is that self-locking thread engagement connects that described adjusting screw rod 1 is connected with the screw-thread fit of sealed letter 2.
Further, conveniently adjust impacting force, recover the design decrement of Elastic medium, the upper head shape of described adjusting screw rod 1 is the structure shape of pivot bottom screw rod of matching with staff.
Further, conveniently adjust impacting force, recover the design decrement of Elastic medium, the upper head shape of described adjusting screw rod 1 is polygonal.
Further, conveniently adjust impacting force, recover the design decrement of Elastic medium, the upper head of described adjusting screw rod 1 is the one in knob, handle.
Further, in order to locate firm and prevent Elastic medium overcompression, described indicating arm 3 lower diameter is greater than upper diameter, and its cross section be step setting, and height during indicating arm 3 lower height to be L, L with Elastic medium 5 be in maximum working load is equal.
Further, in order to ensure that indicating arm has convex position to indicate scale and alert flag, the whole height of described indicating arm 3 is not less than height, the thickness of pad 4 and the entire length sum of adjusting screw rod 1 of Elastic medium 5 when designing minimum work loads.
Further, conveniently use, described Elastic medium 5 is spring.
Further, conveniently use, described indicating arm 3 upper design has scale or alert flag.
Embodiment:
Adjusting screw rod 1 and sealed letter 2 top cover self-locking thread engagement, adjusting screw rod 1 props up pad 4.Pad 4 biasing springs 5 makes its resiliently deformable, and spring 5 produces the thrust to pressing plate 6 after there is resiliently deformable.Stuffing box packing 7 oppressed by pressing plate 6, itself and equipment surface fitted tightly formed to seal.The effect of pad 4 digests warping force when tightening adjusting screw rod 1, ensures the stable performance of spring 5.Indicating arm 3 and pressing plate 6 are connected, through spring 5, pad 4 and adjusting screw rod 1.The length that indicating arm 3 exceeds adjusting screw rod 1 is not less than the decrement of spring 5 relative to height during minimum loading.This exceeds partial design scale mark, plays indicative function for regulating seal arrangement.The projection of indicating arm 3 shrinks along with the wearing and tearing of stuffing box packing 7.When indicating arm 3 is retracted to warning scale time, then need to tighten adjusting screw rod 1, recover the initial scale of indicating arm 3, namely recovered the impacting force of spring 5.The spacing design of step of indicating arm 3 has to spring 5 effects such as locating firm and anti-overcompression.The height when limited step of indicating arm 3 equals spring medium 5 maximum load to the distance of pressing plate 6.When tightening adjusting screw rod 1 Compress Spring 5 and reaching design maximum load, limited step props up pad 4, plays rigid protective effect to spring 5.
This design employing adjusting screw rod coordinates with spring, and by the design flexibility amount of deformation reset mechanism of adjusting screw rod to spring, greatly increase the compensate for displacement of seal arrangement, the utilization ratio of stuffing box packing enlarges markedly thereupon.After spring design stroke is covered, tighten adjusting screw rod and spring can be recovered its design decrement.Patrol and examine work according to production requirement reasonable arrangement in actual production, by the scale direct vision to indicating arm extension, tighten adjusting screw rod in good time and can ensure the sealability that sealing device is stable.
Embodiment recited above is described preferred implementation of the present utility model; not design of the present utility model and scope are limited; do not departing under the utility model design concept prerequisite; the various modification that in related domain, common engineers and technicians make the technical solution of the utility model and improvement; all should fall into protection domain of the present utility model, the technology contents of the utility model request protection is all recorded in detail in the claims.
Claims (8)
1. a seal arrangement for auto-compensation wear extent, is characterized in that: it is made up of adjusting screw rod (1), sealed letter (2), indicating arm (3), pad (4), Elastic medium (5), pressing plate (6) and stuffing box packing (7); Adjusting screw rod (1) forms screw-thread fit with sealed letter (2) and is connected; Adjusting screw rod (1) lower end compresses pad (4) upper surface, and pad (4) lower surface compresses Elastic medium (5); Indicating arm (3) lower end forms with pressing plate (6) upper surface and is fixedly connected with, indicating arm (3) is successively through the through hole in the middle of Elastic medium (5), pad (4) and adjusting screw rod (1) simultaneously, and indicating arm (3) upper end is protruded and is arranged at outside, adjusting screw rod (1) upper end; Elastic medium (5) lower end clamping platen (6) upper surface, pressing plate (6) lower surface press seal filler (7), stuffing box packing (7) forms to fit tightly with equipment surface and is connected.
2. the seal arrangement of auto-compensation wear extent as claimed in claim 1, is characterized in that: it is that self-locking thread engagement connects that described adjusting screw rod (1) is connected with the screw-thread fit of sealed letter (2).
3. the seal arrangement of auto-compensation wear extent as claimed in claim 1, is characterized in that: the upper head shape of described adjusting screw rod (1) is polygonal.
4. the seal arrangement of auto-compensation wear extent as claimed in claim 3, is characterized in that: the upper head of described adjusting screw rod (1) is the one in knob, handle.
5. the seal arrangement of auto-compensation wear extent as claimed in claim 1, it is characterized in that: described indicating arm (3) lower diameter is greater than upper diameter, its cross section is that step is arranged, height during indicating arm (3) lower height to be L, L with Elastic medium (5) be in maximum working load is equal.
6. the seal arrangement of the auto-compensation wear extent as described in claim 1 or 5, is characterized in that: the whole height of described indicating arm (3) is not less than height, the thickness of pad (4) and the entire length sum of adjusting screw rod (1) of Elastic medium (5) when designing minimum work loads.
7. the seal arrangement of the auto-compensation wear extent as described in claim 1 or 5, is characterized in that: described Elastic medium (5) is spring.
8. the seal arrangement of the auto-compensation wear extent as described in claim 1 or 5, is characterized in that: described indicating arm (3) upper design has scale or alert flag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520808524.3U CN205155148U (en) | 2015-10-19 | 2015-10-19 | Automatic sealing device of compensation wearing and tearing volume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520808524.3U CN205155148U (en) | 2015-10-19 | 2015-10-19 | Automatic sealing device of compensation wearing and tearing volume |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205155148U true CN205155148U (en) | 2016-04-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520808524.3U Withdrawn - After Issue CN205155148U (en) | 2015-10-19 | 2015-10-19 | Automatic sealing device of compensation wearing and tearing volume |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205155148U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594282A (en) * | 2015-10-19 | 2017-04-26 | 南京凯盛国际工程有限公司 | Sealing device capable of automatically compensating abrasion loss |
-
2015
- 2015-10-19 CN CN201520808524.3U patent/CN205155148U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594282A (en) * | 2015-10-19 | 2017-04-26 | 南京凯盛国际工程有限公司 | Sealing device capable of automatically compensating abrasion loss |
| CN106594282B (en) * | 2015-10-19 | 2018-10-23 | 南京凯盛国际工程有限公司 | The sealing device of automatic compensation wear extent |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160413 Effective date of abandoning: 20181023 |