CN211225915U - Brake state detection mechanism - Google Patents
Brake state detection mechanism Download PDFInfo
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- CN211225915U CN211225915U CN201922147493.2U CN201922147493U CN211225915U CN 211225915 U CN211225915 U CN 211225915U CN 201922147493 U CN201922147493 U CN 201922147493U CN 211225915 U CN211225915 U CN 211225915U
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- rotating sleeve
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Abstract
The utility model provides a stopper state detection mechanism, including micro-gap switch, ejector pin and wobbling driving lever, micro-gap switch installs on the mounting, and the ejector pin is installed on the motion piece, and motion piece action drives the ejector pin action, and the ejector pin action orders about the driving lever swing, and the driving lever swing touches micro-gap switch's contact action, still be equipped with the columnar cover that rotates on the mounting, the driving lever cup joints in rotating the cover outside and rotates the cover swing through rotating the chamber, the resilience force of micro-gap switch's contact can promote the driving lever and reset around rotating the cover swing. The utility model discloses can effectively solve the elevator operation trouble that lever resetting means became invalid and lead to, make micro-gap switch's life extend greatly simultaneously.
Description
Technical Field
The utility model particularly relates to a stopper state detection mechanism.
Background
The brake of the elevator tractor is required to be provided with a microswitch for detecting the action state between the armature and the magnetic yoke and feeding back a signal to a control system of the elevator. However, most of such detection mechanisms are not reasonable in design, and two reasons are unreasonable: 1. some methods adopt an ejector rod to directly push and hit a contact of a microswitch, the microswitch works to generate signal feedback, but the adjustment precision requirement of the ejector rod is very accurate, otherwise, the stroke of the ejector rod is caused, namely, the distance of the pushing and hitting contact exceeds the effective working stroke of the microswitch, so that the microswitch is damaged, the action state of a brake cannot be normally detected and fed back, the normal operation of an elevator is influenced, a new microswitch needs to be replaced, and the maintenance cost is increased. 2. Some adopt lever amplification mechanism for the stroke adjustment of ejector pin becomes easy, but need install lever resetting means or lever reset part, after the operation live time of elevator is more and more long, lever resetting means or lever reset part fatigue damage easily, lead to the lever unable to reset, cause the unable feedback of micro-gap switch signal, lead to elevator operation trouble.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a brake state detection mechanism can effectively solve the elevator operation trouble that lever resetting means became invalid and leads to, makes micro-gap switch's life extend greatly simultaneously.
The utility model adopts the following technical scheme:
the utility model provides a stopper state detection mechanism, includes micro-gap switch, ejector pin and wobbling driving lever, and micro-gap switch installs on the mounting, and the ejector pin is installed on the motion piece, and the motion piece action drives the ejector pin action, and the ejector pin action orders about the driving lever swing, and the driving lever swing touches micro-gap switch's contact action, still be equipped with cylindrical rotation cover on the mounting, the driving lever cup joints in the rotation cover outside and rotates the cover swing through rotating the chamber, the resilience force of micro-gap switch's contact can promote the driving lever and rotate the cover swing around rotating and reset.
Preferably, the rotating sleeve axially penetrates through a mounting hole, the rotating cavity axially penetrates through the deflector rod, and the screw penetrates through the mounting hole to fix the rotating sleeve on the fixing piece.
Preferably, the circumferential surface of the rotating sleeve is further provided with a boss protruding outwards, a gasket with the diameter larger than that of the mounting hole is sleeved on the screw, and the deflector rod is limited between the gasket and the boss.
Preferably, the boss and the rotating sleeve are integrally formed, and the surface of the boss, which is in contact with the shifting rod, is vertical to the axis of the rotating sleeve.
Preferably, the boss is an annular boss.
Preferably, the deflector rod and the rotating sleeve are both made by a powder metallurgy process.
Preferably, the micro switch and the ejector rod are distributed on two sides of the shifting rod, and the distance from a contact of the micro switch to the rotating sleeve is greater than the distance from the contact of the ejector rod and the shifting rod to the rotating sleeve.
Preferably, the surface of the ejector rod, which is in contact with the deflector rod, is a spherical surface or a plane.
The utility model has the advantages that: the utility model discloses utilize the resilience force of micro-gap switch's contact, realize the automatic re-setting of driving lever, cancelled lever resetting means or lever reset unit, can effectively solve the elevator operation trouble that lever resetting means became invalid and lead to, make micro-gap switch's life extend greatly simultaneously.
Drawings
The accompanying drawings are included to provide a preferred understanding of the present invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of the status detection mechanism of the present invention;
FIG. 3 is a schematic diagram of the relative positions of the microswitch, the carrier rod and the shift lever according to the present invention;
fig. 4 is an explosion diagram of the connection between the shift lever and the rotating sleeve of the present invention.
Labeled as: 1. a microswitch; 2. a top rod; 3. a deflector rod; 4. a magnetic yoke; 5. an armature; 6. rotating the sleeve; 7. a rotation chamber; 8. mounting holes; 9. a screw; 10. a boss; 11. a gasket; 12. a contact; 13. and (7) mounting the plate.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 to 4, a brake state detection mechanism of this embodiment adopts a lever amplification mechanism, which includes a micro switch 1, a push rod 2 and a swingable shift lever 3, the micro switch 1 is mounted on a mounting plate 13 by screws, the mounting plate 13 is fastened in a mounting groove of a yoke 4 of a brake by screws, the push rod 2 is mounted on an armature 5 of the brake, the micro switch 1 is provided with a contact 12, the contact 12 faces the armature 5, the shift lever 3 is located between the contact 12 and the push rod 2, the mounting plate 13 is provided with a columnar rotating sleeve 6, the shift lever 3 is sleeved outside the rotating sleeve 6 by a rotating cavity 7 and swings between the contact 12 and the push rod 2 around the rotating sleeve 6, the yoke 4 of the brake is a fixed part, the armature 5 of the brake is a moving part, when the armature 5 of the brake and the yoke 4 of the brake are attracted, the armature 5 acts to drive the push rod 2 to act, the deflector rod 3 swings to trigger a contact 12 of the microswitch 1 to act, and the microswitch 1 feeds back the brake release state of the brake to the control system; when the armature 5 and the magnetic yoke 4 of the brake are separated, the armature 5 acts to drive the ejector rod 2 to be far away from the deflector rod 3, the friction force between the deflector rod 3 and the rotating sleeve 6 is small enough, the resilience force of the contact 12 of the microswitch 1 pushes the deflector rod 3 to swing around the rotating sleeve 6 to reset, the contact 12 is released by the deflector rod 3, and the state of the brake is fed back to a control system by the microswitch 1;
the distance from the contact point of the ejector rod 2 and the deflector rod 3 to the rotating sleeve 6 is smaller than the distance from the contact 12 of the microswitch 1 to the rotating sleeve 6, the stroke of the contact 12 of the microswitch 1 is multiplied by the stroke of the ejector rod 2, so that the action stroke of the contact 12 of the microswitch 1 is amplified, and meanwhile, the moment arm of the contact 12 of the microswitch 1 is larger, so that the friction force between the deflector rod 3 and the rotating sleeve 6 can be overcome more easily under the action of the resilience force of the contact 12 to enable the contact 12 to swing and reset; the contact surface of the ejector rod 2 and the deflector rod 3 is a spherical surface or a plane, preferably a spherical surface, the deflector rod 3 is jacked by the ejector rod 2 with a ball head structure, so that the abrasion of the contact position of the ejector rod 2 and the deflector rod 3 in the long-time operation work of the elevator can be prevented, and the stroke of the ejector rod 2 and the amplification stroke of the contact 12 of the microswitch 1 are reliably and effectively maintained;
the utility model discloses utilize the resilience force of micro-gap switch's contact, realize driving lever 3's automatic re-setting, cancelled lever resetting means or lever reset part, can effectively solve the elevator operational failure that lever resetting means became invalid and leads to, make micro-gap switch's life extend greatly simultaneously.
In order to facilitate the preparation low enough driving lever 3 of frictional force and rotating sleeve 6, the driving lever 3 and the rotating sleeve 6 of this embodiment are made by powder metallurgy process, utilize the self-lubricating function of powder metallurgy part, reduce the coefficient of friction between driving lever 3 and the rotating sleeve 6, realize the utility model aims at.
Specifically, a mounting hole 8 axially penetrates through the rotating sleeve 6, a boss 10 protruding outwards is further arranged on the circumferential surface of the rotating sleeve 6, the boss 10 is an annular boss, the boss 10 and the rotating sleeve 6 are integrally formed, and the surface, which is in contact with the shift lever 3, of the boss 10 is perpendicular to the axis of the rotating sleeve 6; the rotating cavity 7 axially penetrates through the deflector rod 3, the deflector rod 3 is sleeved outside the rotating sleeve 6 through the rotating cavity 7 until contacting the boss 10, the inner diameter of the rotating cavity 7 is matched with the outer diameter of the rotating sleeve 6, and the passive rotation is realized by utilizing the self-lubricating function of the deflector rod 3 and the rotating sleeve 6; the screw 9 is sleeved with a gasket 11 with the diameter larger than that of the mounting hole 8, the screw 9 penetrates through the mounting hole 8 to fix the rotating sleeve 6 on the mounting plate 13 of the magnetic yoke 4, and the shift lever 3 is limited between the gasket 11 and the boss 10, so that the fixed mounting of the rotating sleeve 6 and the shift lever 3 is realized.
The utility model discloses a theory of operation:
when the armature 5 and the magnetic yoke 4 of the brake are attracted, the armature 5 acts to drive the ejector rod 2 to act, the ejector rod 2 acts to push the deflector rod 3 to swing, the deflector rod 3 swings to trigger the contact 12 of the microswitch 1 to act, and the microswitch 1 feeds back the brake release state of the brake to a control system; when an armature 5 and a magnetic yoke 4 of the brake are separated, the armature 5 acts to drive a mandril 2 to be far away from a deflector rod 3, the deflector rod 3 and a rotating sleeve 6 are both manufactured by a powder metallurgy process, the friction coefficient between the deflector rod 3 and the rotating sleeve 6 is reduced by utilizing the self-lubricating function of a powder metallurgy part, the resilience force of a contact 12 of a microswitch 1 pushes the deflector rod 3 to swing around the rotating sleeve 6 to reset, the deflector rod 3 releases the contact 12, and the microswitch 1 feeds back the state of the brake to a control system; the utility model discloses utilize the resilience force of micro-gap switch's contact, realize driving lever 3's automatic re-setting, cancelled lever resetting means or lever reset part, can effectively solve the elevator operational failure that lever resetting means became invalid and leads to, make micro-gap switch's life extend greatly simultaneously.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A brake state detection mechanism comprises a microswitch, an ejector rod and a swingable shifting rod, wherein the microswitch is installed on a fixing piece, the ejector rod is installed on a moving piece, the moving piece moves to drive the ejector rod to move, the ejector rod moves to drive the shifting rod to swing, and the shifting rod swings to trigger the contact of the microswitch to move.
2. The brake status detecting mechanism according to claim 1, wherein the rotating sleeve has a mounting hole axially formed therethrough, the rotating chamber axially extends through the shift lever, and a screw is inserted through the mounting hole to fix the rotating sleeve to the fixing member.
3. The brake state detection mechanism of claim 2, wherein the circumferential surface of the rotating sleeve is further provided with a boss protruding outwards, a gasket with a diameter larger than that of the mounting hole is sleeved on the screw, and the deflector rod is limited between the gasket and the boss.
4. The brake status detecting mechanism according to claim 3, wherein the boss is integrally formed with the rotary sleeve, and a surface of the boss contacting the shift lever is perpendicular to an axis of the rotary sleeve.
5. The brake status detection mechanism of claim 4, wherein the boss is an annular boss.
6. The brake status detecting mechanism according to any one of claims 1 to 5, wherein the shift lever and the rotating sleeve are made by a powder metallurgy process.
7. The brake state detection mechanism of claim 6, wherein the micro switch and the plunger are disposed on two sides of the lever, and a distance from a contact of the micro switch to the rotating sleeve is greater than a distance from a contact of the plunger and the lever to the rotating sleeve.
8. The brake status detecting mechanism according to claim 7, wherein a surface of the carrier rod contacting the shift lever is a spherical surface or a flat surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922147493.2U CN211225915U (en) | 2019-12-04 | 2019-12-04 | Brake state detection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922147493.2U CN211225915U (en) | 2019-12-04 | 2019-12-04 | Brake state detection mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN211225915U true CN211225915U (en) | 2020-08-11 |
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| CN201922147493.2U Active CN211225915U (en) | 2019-12-04 | 2019-12-04 | Brake state detection mechanism |
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| CN (1) | CN211225915U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112723078A (en) * | 2021-01-18 | 2021-04-30 | 上海乐天电梯部件有限公司 | Brake state detection device |
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2019
- 2019-12-04 CN CN201922147493.2U patent/CN211225915U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112723078A (en) * | 2021-01-18 | 2021-04-30 | 上海乐天电梯部件有限公司 | Brake state detection device |
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