CN204175956U - Internal-expansion type machine plugging mechanism - Google Patents
Internal-expansion type machine plugging mechanism Download PDFInfo
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- CN204175956U CN204175956U CN201420578764.4U CN201420578764U CN204175956U CN 204175956 U CN204175956 U CN 204175956U CN 201420578764 U CN201420578764 U CN 201420578764U CN 204175956 U CN204175956 U CN 204175956U
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Abstract
The internal-expansion type machine plugging mechanism in speed changer component detection technique field, comprising: with spring mechanism setting sleeve, connect base and be movably set in and connect in base and the pulling mechanism contacted with setting sleeve.Plug, O type circle and gland is provided with successively in setting sleeve.With cylinder in pulling mechanism.This device utilizes the thrust of cylinder overcome the elastic force of spring thus compress O type circle, shutoff action is realized by the swelling of himself, only need change an O type circle can guarantee plugging effect, thus many costs are saved in equipment de-sign manufacture and the maintenance in later stage, also make lathe have larger transformation space, flexibility degree improves greatly simultaneously.
Description
Technical field
The utility model relates to a kind of parts of case of transmission technical field, specifically a kind of internal-expansion type machine plugging mechanism.
Background technique
For surface of shell circular hole in current gear box casing air tightness detection equipment, particularly as input hole, when the circular hole that delivery outlet equal diameter is larger carries out detecting shutoff, widely used plugging mechanism is all adopt the form of end face seal to reach sealing effect.Because in air tightness detection equipment, plugging mechanism all belongs to easily damaged parts, need frequently to change.And originally adopted the shutoff form of end face seal to be all generally the plug direct shutoff circular hole end face utilizing the materials such as polyurethane to make, the plug that price is partially expensive directly can only be changed when changing plugging mechanism, the cost considerably increasing speed changer manufacturing enterprise drops into.
Through finding the retrieval of prior art, open (bulletin) the day 2014.04.30 of Chinese patent literature CN103759006A, disclose the interior swollen blocking device of a kind of camshaft hole, include pull bar, rear end inner sleeve, inner sleeve, front end inner sleeve, overcoat, O type circle, pin, handle and spring; One end of described pull bar is provided with the boss structure of enlarged outside diameter, and the other end is flexibly connected with handle by pin; The position of described handle and pull bar joint is cam structure; Described pull bar precedence is through rear end inner sleeve, O type circle, overcoat, inner sleeve and front end inner sleeve.But when this technology carries out shutoff, needs are first manual is placed in mechanism in required plugging hole, then move the recovery drive spring contraction of handle strip moving cam by pull bar, the swelling of O type circle is to realize sealing action; Shutoff process need is divided into two steps, palpus manual hand manipulation, and block-up position also by manual confirmation, cannot fast automaticly must be located.
Model utility content
The utility model is for prior art above shortcomings, a kind of internal-expansion type machine plugging mechanism is proposed, utilizing cylinder directly to promote plugging mechanism is placed in required plugging hole, withstand on required plugging hole end face by setting sleeve to maintain static, continue pushing drawing rod Compress Spring then, the swelling of O type circle is to realize sealing action.Only need promote this step by cylinder can guarantee plugging effect automatically, thus also reduce cost of labor while reducing costs in equipment de-sign manufacture and the maintenance in later stage, also make lathe have larger transformation space, flexibility degree improves greatly simultaneously.
The utility model is achieved through the following technical solutions, and the utility model comprises: with spring mechanism setting sleeve, connect base and be movably set in and connect in base and the pulling mechanism contacted with setting sleeve.
Plug, O type circle and gland is provided with successively in described setting sleeve.
Adopt Spielpassung between described plug and gland, described O type circle is positioned between the two.
Described gland is placed in the inner ring of setting sleeve, and one end of this setting sleeve is connected with plug, the other end be connected base and be connected, make to connect base, between setting sleeve and plug, there is no displacement.
The step hole of described setting sleeve, the length of its degree of depth and described plug is to mating.
Described pulling mechanism comprises: pull bar, the connecting rod be connected with pull bar and cylinder, and wherein: one end of pull bar contacts with spring mechanism, connecting rod contacts with setting sleeve and the gland be arranged in setting sleeve successively, and the other end of pull bar is connected with cylinder.
Described pull bar be connected base Spielpassung, be threaded connection with cylinder.
One end of described pull bar is connected with gland by connecting rod.
Described spring mechanism comprises: spring, spring seat, wherein: spring seat is positioned at setting sleeve and one end of spring is connected with spring seat, and the other end contacts with pulling mechanism.
One end of described spring specifically contacts with the end face circular hole of pull bar, and described spring seat is specifically arranged in the screw-threaded counterbore of setting sleeve.
The end face circular hole of described pull bar, its degree of depth and described its length match.
Technique effect
Compared with prior art, the utility model utilizes the thrust of cylinder to overcome the elastic force of spring, reduce the gap between plug and gland, thus compression O type circle, shutoff action is realized by the contraction swelling of O type circle self, plug length and the degree of depth of the step hole of setting sleeve are to mating simultaneously, do not need manually to determine that block-up position makes shutoff fast and reliable, extensive in case of transmission field of sealing technology applicability, be convenient to the maintenance in later stage and greatly reduce the input of its cost, also make lathe have larger transformation space, flexibility degree improves greatly simultaneously.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
In figure: plug 1, O type circle 2, gland 3, setting sleeve 4, pull bar 5, spring 6, spring seat 7, connecting rod 8, connection base 9, connecting plate 10 and cylinder 11.
Embodiment
Below embodiment of the present utility model is elaborated; the present embodiment is implemented under premised on technical solutions of the utility model; give detailed mode of execution and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
Embodiment 1
As shown in Figure 1, this device comprises: with spring mechanism setting sleeve 4, connect base 9 and be movably set in and connect in base 9 and the pulling mechanism contacted with setting sleeve 4.
Plug 1, O type circle 2 and gland 3 is provided with successively in described setting sleeve 4.
Described connection base 9 is connected 10 with outside connecting plate and keeps fixing.
Adopt Spielpassung between described plug 1 and gland 3, can do straight reciprocating motion between the two, described O type circle 2 is positioned between the two.
Described gland 3 is placed in the inner ring of setting sleeve 4, and one end of this setting sleeve 4 is connected with plug 1, the other end be connected base 9 and be connected, make to connect base 9, between setting sleeve 4 and plug 1, there is no displacement.
Described pulling mechanism comprises: pull bar 5, the connecting rod 8 be connected with pull bar 5, and wherein: pull bar 5 one end contacts with spring mechanism, connecting rod 8 contacts with setting sleeve 4 and the gland 3 be arranged in setting sleeve successively, and the other end of pull bar 5 is connected with cylinder 11.
Described pull bar 5 be connected base 9 Spielpassung, can linear reciprocating motion be done between the two.
One end of described pull bar 5 is fixedly connected with gland 3 by connecting rod 8, thus gland 3 can be moved together with pull bar 5.
Described spring mechanism comprises: spring 6, spring seat 7, wherein: spring seat 7 is positioned at setting sleeve 4 and one end of spring 6 is connected with spring seat 7, and the other end contacts with pulling mechanism.
One end of described spring 6 specifically contacts with the circular hole of pull bar 5, and described spring seat 7 is specifically arranged in the screw-threaded counterbore of setting sleeve 4.
Described connecting plate 10 be connected base 9 end face and connect.
This device in use, first promote by cylinder the hole that plugging mechanism is placed in required shutoff, setting sleeve 4 end face and required plugging hole end contact, then cylinder 11 continues extrapolated piston rod applied thrust, thus make pull bar 5 drive gland 3 to do straight line motion forward together by connecting rod 8, because setting sleeve 4 withstands on workpiece, setting sleeve 4 and plug 1 can not be moved, thus the gap between pull bar 5 and setting sleeve 4 is also reduced, spring 6 produces compression.Now, owing to connecting base 9, setting sleeve 4 and plug 1 keep fixing, and therefore gland 3 and plug 1 can compress O type circle 2, make O type circle 2 external diameter expansion degree be greater than required shutoff Circularhole diameter, thus reach sealing circular hole effect.After the recovery of cylinder 11 piston rod removes thrust, by the elastic-restoring force of spring 5 self, pull bar 5 is pushed up back original position, thus driving gland 3 return by connecting rod 8, such O type circle 2 external diameter natural shrinking, makes a whole set of plugging mechanism to leave in circular hole smoothly.
Claims (9)
1. an internal-expansion type machine plugging mechanism, is characterized in that, comprising: with spring mechanism setting sleeve, connect base and be movably set in and connect in base and the pulling mechanism contacted with setting sleeve;
Plug, O type circle and gland is provided with successively in described setting sleeve.
2. internal-expansion type machine plugging mechanism according to claim 1, is characterized in that, adopt Spielpassung between described plug and gland, and described O type circle is positioned between the two.
3. internal-expansion type machine plugging mechanism according to claim 1 and 2, it is characterized in that, described gland is placed in the inner ring of setting sleeve, one end of this setting sleeve is connected with plug, the other end be connected base and be connected, make to connect base, do not have displacement between setting sleeve and plug, the degree of depth and the plug length of setting sleeve step hole match.
4. internal-expansion type machine plugging mechanism according to claim 1, it is characterized in that, described pulling mechanism comprises: pull bar, the connecting rod be connected with pull bar, wherein: pull bar one end contacts with spring mechanism, connecting rod contacts with setting sleeve and the gland be arranged in setting sleeve successively, and the pull bar the other end is connected with cylinder.
5. internal-expansion type machine plugging mechanism according to claim 4, is characterized in that, described pull bar be connected base Spielpassung.
6. internal-expansion type machine plugging mechanism according to claim 4, it is characterized in that, one end of described pull bar is connected with gland by connecting rod.
7. internal-expansion type machine plugging mechanism according to claim 1, it is characterized in that, described spring mechanism comprises: spring, spring seat, wherein: spring seat is positioned at setting sleeve and one end of spring is connected with spring seat, and the other end contacts with pulling mechanism.
8. internal-expansion type machine plugging mechanism according to claim 7, is characterized in that, one end of described spring specifically contacts with the end face circular hole of pull bar, and described spring seat is specifically arranged in the screw-threaded counterbore of setting sleeve.
9. internal-expansion type machine plugging mechanism according to claim 8, is characterized in that, the end face circular hole of described pull bar, and its degree of depth and described its length match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420578764.4U CN204175956U (en) | 2014-10-09 | 2014-10-09 | Internal-expansion type machine plugging mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420578764.4U CN204175956U (en) | 2014-10-09 | 2014-10-09 | Internal-expansion type machine plugging mechanism |
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| Publication Number | Publication Date |
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| CN204175956U true CN204175956U (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420578764.4U Active CN204175956U (en) | 2014-10-09 | 2014-10-09 | Internal-expansion type machine plugging mechanism |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485341A (en) * | 2016-01-15 | 2016-04-13 | 上海汽车变速器有限公司 | Multi-cavity compound seal blocking mechanism |
| CN107462372A (en) * | 2017-09-19 | 2017-12-12 | 菲斯达精密工业部件（苏州）有限公司 | A kind of sealing detection plugging device of automobile valve body |
| CN109505978A (en) * | 2018-12-29 | 2019-03-22 | 浙江德众汽车零部件制造有限公司 | A kind of compensation interior swollen plugging mechanism of radial compliance |
| CN114112198A (en) * | 2021-10-18 | 2022-03-01 | 东风汽车股份有限公司 | Multi-joint self-adaptive plugging mechanism |
-
2014
- 2014-10-09 CN CN201420578764.4U patent/CN204175956U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485341A (en) * | 2016-01-15 | 2016-04-13 | 上海汽车变速器有限公司 | Multi-cavity compound seal blocking mechanism |
| CN107462372A (en) * | 2017-09-19 | 2017-12-12 | 菲斯达精密工业部件（苏州）有限公司 | A kind of sealing detection plugging device of automobile valve body |
| CN109505978A (en) * | 2018-12-29 | 2019-03-22 | 浙江德众汽车零部件制造有限公司 | A kind of compensation interior swollen plugging mechanism of radial compliance |
| CN109505978B (en) * | 2018-12-29 | 2024-05-03 | 浙江德众汽车零部件制造有限公司 | Radial flexible compensation type internal expansion plugging mechanism |
| CN114112198A (en) * | 2021-10-18 | 2022-03-01 | 东风汽车股份有限公司 | Multi-joint self-adaptive plugging mechanism |
| CN114112198B (en) * | 2021-10-18 | 2023-09-12 | 东风汽车股份有限公司 | Multi-joint self-adaptive plugging mechanism |
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| GR01 | Patent grant |