CN214527488U - Elevator braking distance precision detection device - Google Patents
Elevator braking distance precision detection device Download PDFInfo
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- CN214527488U CN214527488U CN202120566807.7U CN202120566807U CN214527488U CN 214527488 U CN214527488 U CN 214527488U CN 202120566807 U CN202120566807 U CN 202120566807U CN 214527488 U CN214527488 U CN 214527488U
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- distance measuring
- wire rope
- elevator
- wheel
- distance
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- 238000001514 detection method Methods 0.000 title claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 230000006698 induction Effects 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 30
- 239000010959 steel Substances 0.000 claims description 30
- 230000000903 blocking effect Effects 0.000 claims description 14
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims description 2
- 238000010030 laminating Methods 0.000 abstract description 5
- 238000005259 measurement Methods 0.000 abstract description 3
- 230000004044 response Effects 0.000 description 8
- 230000001133 acceleration Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses an elevator braking distance precision measurement device sets up in elevator car top upper portion at the hauler, the hauler still includes driving sheave and base, the base bottom is provided with range unit, the driving sheave is provided with wire rope, wire rope runs through the base and connects in the elevator car top with range unit, elevator car one side outside is provided with the slide rail support, slide rail support swing joint has signal induction mechanism, signal induction mechanism one side is provided with proximity switch, proximity switch fixedly connected with bracing piece. This elevator braking distance precision detection device, after proximity switch passes through signal induction mechanism and acquires the brake signal, range unit begins to brake the range finding, and the braking distance detects the laminating reality, and it is more accurate to detect numerical value.
Description
Technical Field
The utility model relates to an elevator braking detection device technical field specifically is an elevator braking distance precision detection device.
Background
With the increasing of high-rise buildings, the elevator is taken as an important vertical transportation vehicle, and the safe and reliable operation of the elevator becomes a social topic which is widely concerned. The brake is one of the most important safety components for ensuring normal operation and most frequent actions of the elevator, and can ensure that the motor of the elevator stops rotating without power supply and effectively brake the elevator car. Whether the elevator can run safely is closely related to the working condition of the brake.
However, the field detection of the braking force, which is an important technical index of the brake, currently adopts a manual measurement or artificial subjective judgment mode, and it is difficult to give an accurate measurement value. However, a large number of accident cases show that one of the main reasons for the occurrence of the casualty accidents of the elevator is that the braking force value of the elevator brake is improper, so that the elevator has the phenomena of top impact, bottom squat, car sliding, layer-stopping out-of-control, shearing and the like.
Therefore, it is highly desirable to design an elevator braking distance accuracy detection device.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides an elevator braking distance precision detection device possesses advantages such as automated inspection, detection numerical value accuracy, has solved the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a traction machine is arranged on the upper portion of the top end of an elevator car, the traction machine further comprises a traction wheel and a base, a distance measuring device is connected to the bottom of the base, the traction wheel is provided with a steel wire rope in a surrounding mode, the steel wire rope penetrates through the base and the distance measuring device to be connected to the top of the elevator car, a sliding rail support is arranged outside one side of the elevator car, the sliding rail support is movably connected with a signal sensing mechanism, a proximity switch is arranged on one side, close to the elevator car, of the signal sensing mechanism, a supporting rod is fixedly connected with the proximity switch, and the supporting rod is fixedly arranged on the upper portion of one side of the elevator car;
the distance measuring device further comprises a digital display controller, a rotary encoder, a distance measuring wheel, a pressing block, a pressing wheel, a spring and a blocking plate, wherein the digital display controller and the rotary encoder are arranged on the surface of one side of the distance measuring device;
the signal induction mechanism comprises a signal sheet, a locking block and a locking screw, the locking block is arranged on the inner wall of one side, provided with the sliding groove, of the sliding rail support in a sliding mode, and the signal sheet is connected to the outer wall of one side, provided with the sliding groove, of the sliding rail support in a sliding contact mode through the locking screw in a threaded mode.
Through the scheme, proximity switch follows elevator car and goes up and down, different positions can set up a plurality of signal response mechanisms about the slide rail support, be used for detecting the braking distance of elevator car under different acceleration circumstances, proximity switch acquires the braking signal back when corresponding with the signal piece position of signal response mechanism, range unit obtains the braking distance through rotary encoder according to the conversion of the number of turns of range finding wheel, and show through the digital display controller, the braking distance detects that the laminating is actual and more accurate.
Preferably, the surfaces of the distance measuring wheel and the pressing wheel are provided with semicircular depressions, and the radius of the depressions is matched with the diameter of the steel wire rope.
Through the scheme, the steel wire rope is sunk into and contacts with the surface depressions of the distance measuring wheel and the pressing wheel, so that the contact area of the steel wire rope and the distance measuring wheel and the pressing wheel is increased, and the friction force is increased.
Preferably, the pinch rollers and the distance measuring wheels are arranged on two sides of the steel wire rope, and the center distance between the two pinch rollers is larger than or equal to the diameter of the distance measuring wheel.
Through above-mentioned scheme, two pinch rollers compress tightly wire rope to the range finding wheel direction, prevent that the range finding wheel from leading to the range finding wheel to change less or not change with the wire rope contact is not tight when wire rope reciprocates to influence braking distance and detect the inaccuracy.
Preferably, the blocking plate is L-shaped, and the length of the blocking plate is less than or equal to the distance between the inner wall of one side of the blocking plate and the center of the steel wire rope connected with the ranging device.
Through above-mentioned scheme, the compact heap extrudees to wire rope direction under the effect of spring, and the movable range of stop plate to the compact heap restricts.
Preferably, the signal sheet is made of a steel plate or a galvanized plate in an L shape by bending, an adjusting groove is formed in the middle of one side of the signal sheet, and the width of the adjusting groove is the same as that of a sliding groove formed in the sliding rail support.
Preferably, a convex block is fixedly arranged on one side, close to the sliding groove formed in the sliding rail support, of the locking block, the convex block is rectangular, and the length and width of the rectangular shape are the same as the width of the sliding groove formed in the sliding rail support.
Preferably, a compression spring is connected and arranged on one side, close to the screw rod, of the screw cap of the locking screw, and a gasket is connected and arranged at one end, far away from the screw cap, of the compression spring.
Through above-mentioned scheme, the signal piece can adjust through the adjustment tank and proximity switch between the distance, makes the signal response reach best sensitive state, screws up locking screw and passes through latch segment and compression spring cooperation gasket with the signal piece extrusion be fixed in slide rail bracket and set up spout one side, when unscrewing locking screw, the signal piece can slide the height position of adjusting on slide rail bracket for can carry out the altitude mixture control of signal induction mechanism according to the measuring needs.
Compared with the prior art, the utility model provides an elevator braking distance precision detection device possesses following beneficial effect:
1. this elevator braking distance precision detection device through setting up signal response mechanism, proximity switch and range unit, after proximity switch passes through signal response mechanism and acquires the brake signal, range unit begins to brake the range finding for the automatic operation in-process of elevator can carry out the braking distance and detect, and the braking distance detects the laminating reality, thereby the braking distance detects numerical value more accurate.
2. This elevator braking distance precision detection device sets up latch segment and locking screw through signal response mechanism for the signal piece can carry out position control on the slide rail support, thereby can carry out elevator car and detect braking distance under the different acceleration circumstances.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the ranging device 4 of FIG. 1;
FIG. 3 is a schematic view of the interior of the distance measuring device of FIG. 2;
fig. 4 is a schematic structural diagram of the signal sensing mechanism 6 in fig. 1.
Wherein: 1. an elevator car; 2. a traction machine; 201. a traction sheave; 202. a base; 3. a wire rope; 4. a distance measuring device; 401. a digital display controller; 402. a rotary encoder; 403. a distance measuring wheel; 404. a compression block; 405. a pinch roller; 406. a spring; 407. a blocking plate; 5. a slide rail bracket; 6. a signal sensing mechanism; 601. a signal sheet; 602. a locking block; 603. locking screws; 604. an adjustment groove; 605. a bump; 606. a compression spring; 607. a gasket; 7. a proximity switch; 701. a support rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, an elevator braking distance precision detection device, a traction machine 2 is arranged on the upper portion of the top end of an elevator car 1, the traction machine 2 further comprises a traction sheave 201 and a base 202, the bottom of the base 202 is connected with a distance measuring device 4, the traction sheave 201 is provided with a steel wire rope 3 in a surrounding manner, the steel wire rope 3 penetrates through the base 202 and the distance measuring device 4 and is connected to the top of the elevator car 1, a sliding rail support 5 is arranged outside one side of the elevator car 1, the sliding rail support 5 is movably connected with a signal sensing mechanism 6, a proximity switch 7 is arranged on one side, close to the elevator car 1, of the signal sensing mechanism 6, the proximity switch 7 is fixedly connected with a support rod 701, and the support rod 701 is fixedly arranged on the upper portion of one side of the elevator car 1;
the distance measuring device 4 further comprises a digital display controller 401, a rotary encoder 402, a distance measuring wheel 403, a pressing block 404, a pressing wheel 405, a spring 406 and a blocking plate 407, the digital display controller 401 and the rotary encoder 402 are arranged on the surface of one side of the distance measuring device 4, the distance measuring wheel 403 penetrates through the shell of the distance measuring device 4 through a rotating shaft and is connected to the rotary encoder 402, the distance measuring wheel 403 is in friction contact with the outer surface of the steel wire rope 3, the spring 406 is arranged on the inner wall of one side, away from the distance measuring wheel 403, of the inside of the distance measuring device 4 in a contact manner, one end, away from the inner wall of the distance measuring device 4, of the spring 406 is connected with the pressing block 404, the pressing wheel 405 is movably connected to the upper end and the lower end of the pressing block 404, the pressing wheel 405 is in friction contact with the outer surface of the steel wire rope 3, and the blocking plates 407 fixed on the inner wall of the distance measuring device 4 are arranged on the two sides of the pressing block 404;
the signal sensing mechanism 6 comprises a signal sheet 601, a locking block 602 and a locking screw 603, wherein the locking block 602 is slidably disposed on the inner wall of the slide rail bracket 5 on the side where the slide groove is formed, and the signal sheet 601 is connected to the locking block 602 through the locking screw 603 in a sliding contact manner and is connected to the outer wall of the slide rail bracket 5 on the side where the slide groove is formed.
Further, semicircular depressions are formed in the surfaces of the distance measuring wheel 403 and the pressing wheel 405, and the depression radius is matched with the diameter of the steel wire rope 3.
The steel wire rope 3 is sunk into the surface depressions contacting the distance measuring wheel 403 and the pinch roller 405, so that the contact area of the steel wire rope 3 with the distance measuring wheel 403 and the pinch roller 405 is increased, and the friction force is increased.
Further, the pinch roller 405 and the distance measuring wheel 403 are arranged on two sides of the steel wire rope 3, and the center distance between the two pinch rollers 405 is larger than or equal to the diameter of the distance measuring wheel 403.
The two pinch rollers 405 compress the steel wire rope 3 towards the distance measuring wheel 403, so that the distance measuring wheel 403 is prevented from rotating less or not rotating due to loose contact with the steel wire rope 3 when the steel wire rope 3 moves up and down, and the detection inaccuracy of the braking distance is influenced.
Further, the blocking plate 407 is L-shaped, and the length is less than or equal to the distance between the inner wall of the side of the distance measuring device 4 connected with the blocking plate 407 and the center of the steel wire rope 3.
The pressing block 404 is pressed towards the direction of the steel wire rope 3 under the action of the spring 406, and the stop plate 407 limits the moving range of the pressing block 404.
Further, the signal sheet 601 is made of a steel plate or a galvanized plate which is bent in an L shape, an adjusting groove 604 is formed in the middle of one side of the signal sheet, and the width of the adjusting groove 604 is the same as that of a sliding groove formed in the slide rail bracket 5.
Furthermore, a convex block 605 is fixedly arranged on one side of the locking block 602, which is close to the slide rail bracket 5 and provided with a slide groove, the convex block 605 is rectangular, and the length and width of the rectangle are the same as the width of the slide groove provided by the slide rail bracket 5.
Furthermore, a compression spring 606 is connected to one side, close to the screw, of the nut of the locking screw 603, and a gasket 607 is connected to one end, far away from the nut, of the compression spring 606.
The distance between the signal sheet 601 and the proximity switch 7 can be adjusted through the adjusting groove 604, so that signal sensing can reach the optimal sensitive state, the locking screw 603 is screwed, the locking block 602 and the compression spring 606 are matched with the gasket 607, so that the signal sheet 601 is fixed on one side, provided with the sliding groove, of the sliding rail support 5 in an extruding manner, the locking screw 603 is screwed, the signal sheet 601 can slide on the sliding rail support 5 to adjust the height position, and therefore the height adjustment of the signal sensing mechanism 6 can be performed according to detection requirements.
The working principle of the embodiment is as follows:
when using, this elevator braking distance precision detection device, go up and down along with elevator car 1 through setting up proximity switch 7, different upper and lower positions at slide rail bracket 5 can set up a plurality of signal response mechanisms 6, be used for detecting the braking distance of elevator car 1 under different acceleration circumstances, proximity switch 7 acquires braking signal back when corresponding with signal response mechanism 6's signal piece 601 position, range unit 4 obtains braking distance through rotary encoder 402 according to the conversion of the number of turns of range wheel 403, and show through digital display controller 401, braking distance detects the laminating reality and more accurate.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an elevator braking distance precision detection device which characterized in that: the traction machine (2) is arranged on the upper portion of the top end of an elevator car (1), the traction machine (2) further comprises a traction wheel (201) and a base (202), a distance measuring device (4) is arranged at the bottom of the base (202), a steel wire rope (3) is arranged on the traction wheel (201), the steel wire rope (3) penetrates through the base (202) and the distance measuring device (4) to be connected to the top of the elevator car (1), a sliding rail support (5) is arranged on the outer portion of one side of the elevator car (1), the sliding rail support (5) is movably connected with a signal sensing mechanism (6), a proximity switch (7) is arranged on one side, close to the elevator car (1), of the signal sensing mechanism (6), the proximity switch (7) is connected with a support rod (701), and the support rod (701) is arranged on the upper portion of one side of the elevator car (1);
the distance measuring device (4) further comprises a digital display controller (401), a rotary encoder (402), a distance measuring wheel (403), a pressing block (404), a pressing wheel (405), a spring (406) and a blocking plate (407), wherein the digital display controller (401) and the rotary encoder (402) are arranged on one side surface of the distance measuring device (4), the distance measuring wheel (403) penetrates through a shell of the distance measuring device (4) through a rotating shaft and is connected to the rotary encoder (402), the distance measuring wheel (403) is in contact with the outer surface of the steel wire rope (3), the spring (406) is arranged on the inner wall of the distance measuring device (4) far away from the distance measuring wheel (403), the pressing block (404) is arranged at one end, far away from the inner wall of the distance measuring device (4), of the spring (406), the pressing wheel (405) is in friction contact with the outer surface of the steel wire rope (3), two sides of the pressing block (404) are provided with blocking plates (407) fixed on the inner wall of the distance measuring device (4);
the signal induction mechanism (6) comprises a signal sheet (601), a locking block (602) and a locking screw (603), wherein the locking block (602) is arranged on the inner wall of one side of the sliding groove formed in the sliding rail support (5) in a sliding mode, and the signal sheet (601) is connected to the outer wall of one side of the sliding groove formed in the sliding rail support (5) through the locking screw (603) in a threaded mode in the locking block (602).
2. The elevator braking distance accuracy detecting device according to claim 1, characterized in that: the surfaces of the distance measuring wheel (403) and the pressing wheel (405) are provided with semicircular depressions, and the diameters of the depressions are matched with those of the steel wire rope (3).
3. The elevator braking distance accuracy detecting device according to claim 1, characterized in that: the pinch rollers (405) and the distance measuring wheels (403) are arranged on two sides of the steel wire rope (3), and the center distance between the two pinch rollers (405) is larger than or equal to the diameter of the distance measuring wheels (403).
4. The elevator braking distance accuracy detecting device according to claim 1, characterized in that: the blocking plate (407) is L-shaped, and the length of the blocking plate (407) is less than or equal to the distance between the inner wall of one side of the blocking plate (407) and the center of the steel wire rope (3) connected by the distance measuring device (4).
5. The elevator braking distance accuracy detecting device according to claim 1, characterized in that: the signal sheet (601) is made of a steel plate or a galvanized plate in an L-shaped mode through bending, an adjusting groove (604) is formed in the middle of one side of the signal sheet, and the width of the adjusting groove (604) is the same as that of a sliding groove formed in the sliding rail support (5).
6. The elevator braking distance accuracy detecting device according to claim 1, characterized in that: a convex block (605) is arranged on one side, close to the sliding groove formed in the sliding rail support (5), of the locking block (602), the convex block (605) is rectangular, and the length and the width of the rectangle are the same as the width of the sliding groove formed in the sliding rail support (5).
7. The elevator braking distance accuracy detecting device according to claim 1, characterized in that: and a compression spring (606) is arranged on one side, close to the screw rod, of the nut of the locking screw (603), and a gasket (607) is arranged at one end, far away from the nut, of the compression spring (606).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120566807.7U CN214527488U (en) | 2021-03-19 | 2021-03-19 | Elevator braking distance precision detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120566807.7U CN214527488U (en) | 2021-03-19 | 2021-03-19 | Elevator braking distance precision detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214527488U true CN214527488U (en) | 2021-10-29 |
Family
ID=78263493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120566807.7U Expired - Fee Related CN214527488U (en) | 2021-03-19 | 2021-03-19 | Elevator braking distance precision detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214527488U (en) |
-
2021
- 2021-03-19 CN CN202120566807.7U patent/CN214527488U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211029 |