CN210594785U - Brake device and elevator - Google Patents
Brake device and elevator Download PDFInfo
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- CN210594785U CN210594785U CN201921311540.6U CN201921311540U CN210594785U CN 210594785 U CN210594785 U CN 210594785U CN 201921311540 U CN201921311540 U CN 201921311540U CN 210594785 U CN210594785 U CN 210594785U
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- brake
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- braking
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Abstract
The utility model discloses a brake equipment and elevator, brake equipment include brake disc, brake piece and atress detector, and the brake piece is used for moving along the direction of being close to or keeping away from the brake disc, and the atress detector sets up with the brake piece relatively, and the atress detector is used for the atress size of sensing brake piece. Above-mentioned arresting gear, the brake spare is close to the brake disc and contacts with the brake disc, realize the braking to the brake disc, during brake spare and brake disc contact, the brake spare can receive the pressure of brake disc, consequently, the atress detector accessible detects the atress of brake spare or takes place deformation, and then judge whether the brake spare carries out brake braking to the brake disc, because the brake spare can directly be reacted by the atress or the deformation of brake spare with the size of brake disc contact or contact force, consequently, the data that the atress detector gathered keeps in step with the actual running state of brake disc, the cooperation state of reflection brake spare and brake disc that can be correct, can not be because the emergence of asynchronous dangerous condition that leads to.
Description
Technical Field
The utility model relates to an elevator equipment technical field especially relates to a arresting gear and elevator.
Background
The brake is one of the most important safety components of an elevator. The operating conditions of the conventional brake are fed back to the control system of the elevator by means of a microswitch signal. In the starting process of the brake, when the control system receives the feedback of the starting signal of the brake transmitted by the microswitch, the brake is ensured to enter a non-braking state, namely the starting signal of the microswitch can accurately reflect the state of the brake.
When the brake is released, and the control system receives the brake release signal feedback transmitted by the microswitch, the brake may still be in a non-braking state and does not enter a braking state, namely, the microswitch release signal does not accurately reflect the state of the brake. At this time, if the elevator misjudges that the brake enters the braking state according to the signal of the microswitch, the control signal of the traction machine is cancelled, and the car door and the hall door are opened, which may cause the movement of the elevator car. If the brake cannot complete subsequent actions due to mechanical failure or other reasons after the microswitch acts, the brake cannot enter a braking state, and dangerous conditions may be caused.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model discloses lie in overcoming prior art's not enough, provide one kind and can more accurately know arresting gear and elevator of brake state.
The technical scheme is as follows:
a braking device comprises a brake disc, a brake piece and a stress detector, wherein the brake piece is used for moving in the direction close to or far away from the brake disc, the stress detector is arranged opposite to the brake piece, and the stress detector is used for sensing the stress of the brake piece.
Above-mentioned arresting gear, usable brake spare is close to the brake disc and contacts with the brake disc, realize the braking to the brake disc, or keep away from the brake disc and break away from with the brake disc through brake spare, when brake spare contacts with the brake disc, brake spare can receive the pressure of brake disc, consequently, the atress detector accessible detects the atress of brake spare or takes place deformation, and then judge whether brake spare carries out brake braking to the brake disc, because whether brake spare can directly be by the atress or the deformation reaction of brake spare with the size of brake disc contact or contact force, consequently, the data of atress detector collection keeps synchronous with the actual running state of brake disc, the cooperation state of reflection brake spare and brake disc that can be correct, can not be because the emergence of asynchronous dangerous condition that leads to.
In one embodiment, the brake piece comprises a brake pad and a brake shoe connected with the brake pad, the brake pad is arranged opposite to the brake disc, and the stress detector is arranged opposite to the brake pad; or the stress detector is arranged opposite to the brake shoe.
In one embodiment, the braking device further includes an adjusting member, when the force detector abuts against the brake pad, one end of the adjusting member is disposed on the brake shoe, the force detector is connected to the other end of the adjusting member, and the adjusting member is configured to adjust an initial state of the force detector.
In one embodiment, a yielding notch is formed in the side face, close to the brake shoe, of the brake pad, and the stress detector extends into the yielding notch.
In one embodiment, the abdicating notch is located in the middle of the brake pad.
In one embodiment, a threaded hole is formed in the side surface of the brake shoe close to the brake pad, and the adjusting piece is in threaded fit with the threaded hole.
In one embodiment, the braking device further includes a first magnetic member, a second magnetic member, and a braking spring, the braking spring is disposed between the first magnetic member and the second magnetic member, the second magnetic member is connected to the braking shoe, and the first magnetic member is an electromagnet.
In one embodiment, the braking device further includes a fixing member, a supporting member and a motor base, the supporting member is connected to the first magnetic member and the motor base, the fixing member sequentially penetrates through the first magnetic member, the supporting member and the second magnetic member and is connected to the motor base, and the second magnetic member is slidably engaged with the supporting member.
In one embodiment, the force detector is a pressure sensor or a strain sensor.
An elevator comprises a traction machine and the braking device, wherein the traction machine is used for driving the brake disc to rotate, and the stress detector is electrically connected with the traction machine.
Above-mentioned elevator, usable brake spare is close to the brake disc and contacts with the brake disc, realize the braking to the hauler, or keep away from the brake disc and break away from with the brake disc through the brake spare, when the brake spare contacts with the brake disc, the brake spare can receive the pressure of brake disc, consequently, the atress detector accessible detects the atress of brake spare or takes place deformation, and then judge whether the brake spare carries out brake braking to the hauler, because the size of brake spare and brake disc contact or contact force can directly be by the atress or the deformation reaction of brake spare, consequently, the data of atress detector collection keeps in step with the actual running state of brake disc, the cooperation state of reflection brake spare and brake disc that can be correct, can not be because the emergence of asynchronous dangerous condition that leads to.
Drawings
Fig. 1 is a schematic structural diagram of a braking device according to an embodiment of the present invention when the braking device is not braking;
FIG. 2 is a schematic structural view of the braking device of FIG. 1 during braking;
fig. 3 is a schematic partial structural view of a braking device according to another embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 1 at A;
fig. 5 is a schematic partial structural view of a braking device according to another embodiment of the present invention;
fig. 6 is a schematic view of a part of a brake apparatus according to another embodiment of the present invention;
fig. 7 is a schematic view of a part of a brake device according to another embodiment of the present invention.
Description of reference numerals:
100. the brake comprises a brake disc, 200, a brake piece, 210, a brake pad, 211, an abdicating notch, 220, a brake shoe, 300, a stress detector, 400, an adjusting piece, 510, a first magnetic piece, 520, a second magnetic piece, 530, a brake spring, 540, a fixing piece, 550, a supporting piece, 600 and a motor base.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the present invention, the terms "first" and "second" do not denote any particular quantity or order, but are merely used to distinguish names.
As shown in fig. 1 and 2, an embodiment discloses a braking device, which includes a brake disc 100, a braking element 200 and a force detector 300, wherein the braking element 200 is configured to move in a direction approaching to or departing from the brake disc 100, the force detector 300 is disposed opposite to the braking element 200, and the force detector 300 is configured to sense a magnitude of a force applied to the braking element 200.
In the braking device, the brake piece 200 can be used to be close to the brake disc 100 and to be in contact with the brake disc 100, so as to brake the brake disc 100, or the brake piece 200 is far away from the brake disc 100 and is separated from the brake disc 100, when the brake piece 200 is in contact with the brake disc 100, the brake piece 200 can be subjected to the pressure of the brake disc 100, so that the stress detector 300 can detect the stress or deformation of the brake piece 200, and further judge whether the brake piece 200 brakes the brake disc 100, because whether the brake piece 200 is in contact with the brake disc 100 or the contact force can be directly reacted by the stress or deformation of the brake piece 200, the data collected by the stress detector 300 is kept synchronous with the actual operation state of the brake disc 100, the matching state of the brake piece 200 and the brake disc 100 can be correctly reflected, and the dangerous situation caused by asynchroniz.
In one embodiment, as shown in fig. 1 to 3, the brake member 200 includes a brake pad 210 and a brake shoe 220 connected to the brake pad 210, the brake pad 210 is disposed opposite to the brake disc 100, and the force detector 300 is disposed opposite to the brake pad 210; or the force detector 300 is disposed opposite to the brake shoe 220. Since the brake pad 210 is connected to the brake shoe 220, when the brake pad 210 contacts the brake disc 100, the brake pad 210 transmits pressure to the brake shoe 220, so that the force detector 300 can be abutted to the brake pad 210 or the brake shoe 220 to detect the braking state of the brake disc 100.
In one embodiment, as shown in fig. 1 and 4, the braking device further includes an adjusting member 400, when the force detector 300 abuts against the brake pad 210, one end of the adjusting member 400 is disposed on the brake shoe 220, the force detector 300 is connected to the other end of the adjusting member 400, and the adjusting member 400 is used for adjusting the initial state of the force detector 300. In the using process, the brake pad 210 may deform and the like, and the sensitivity of the detection is also required, so the position of the force detector 300 can be adjusted by the adjusting member 400 according to specific conditions.
Specifically, the "initial state" is a distance between the force detector 300 and the brake pad 210.
Specifically, the adjusting member 400 can adjust the force detector 300 and the brake pad 210 to be in clearance fit; or the force detector 300 abuts against the brake pad 210, and the adjusting member 400 can adjust the tightness of the abutment between the force detector 300 and the brake pad 210.
In one embodiment, as shown in fig. 1 and 4, the side of the brake pad 210 close to the brake shoe 220 is provided with a relief notch 211, and the force detector 300 extends into the relief notch 211. At this time, the force detector 300 is closer to the contact position of the brake pad 210 and the brake disc 100, so that the pressure or deformation of the brake pad 210 can be sensed more sensitively, and the fit state of the brake disc 100 and the brake pad 210 can be fed back more timely.
Specifically, the brake shoe 220 is provided with an assembly notch at a position corresponding to the abdicating notch 211, and the assembly notch is used for installing the adjusting piece 400.
In one embodiment, the relief notch 211 is located in the middle of the brake plate 210, as shown in FIG. 1. When the middle part of the brake pad 210 contacts the brake disc 100, the stress between the brake pad 210 and the brake disc 100 is stable, and the braking effect is good. Meanwhile, the force detector 300 is disposed in the abdicating notch 211, so that whether the brake pad 210 contacts with the brake disc 100 or not and the magnitude of the acting force therebetween can be known in time.
In other embodiments, as shown in fig. 5 and 6, the abdicating notch 211 can also be disposed at other positions of the brake pad 210, such as the left position or the right position of the brake pad 210.
In one embodiment, a threaded hole is provided in the side of the brake shoe 220 adjacent to the brake plate 210, and the adjustment member 400 is threadedly engaged with the threaded hole. The moving distance of the adjusting member 400 can be precisely adjusted by screw-fitting, and the sensitivity sensed by the force detector 300 can be adjusted.
In other embodiments, the adjustment member 400 may also be an air cylinder or a hydraulic cylinder. The position of the force detector 300 may be adjusted by an air cylinder or a hydraulic cylinder at this time.
In one embodiment, as shown in fig. 1, the braking device further includes a first magnetic member 510, a second magnetic member 520, and a braking spring 530, the braking spring 530 is disposed between the first magnetic member 510 and the second magnetic member 520, the second magnetic member 520 is connected to the brake shoe 220, and the first magnetic member 510 is an electromagnet. When the first magnetic member 510 is energized, the first magnetic member 510 has magnetism, and can attract the second magnetic member 520, so that the second magnetic member 520 and the brake shoe 220 move along the direction close to the first magnetic member 510, and at this time, the brake shoe 220 and the brake pad 210 are far away from the brake disc 100, and when the first magnetic member 510 is de-energized, due to the reset of the brake spring 530, the second magnetic member 520 can be pushed towards the direction far away from the first magnetic member 510, so that the brake pad 210 is close to the brake disc 100.
Specifically, the braking spring 530 is a pressure spring. The detent spring 530 functions to push the second magnetic member 520 away from the first magnetic member 510.
In one embodiment, as shown in fig. 1, the braking device further includes a fixing member 540, a supporting member 550 and a motor base 600, the supporting member 550 is connected to the first magnetic member 510 and the motor base 600, the fixing member 540 sequentially penetrates through the first magnetic member 510, the supporting member 550 and the second magnetic member 520 and is connected to the motor base 600, and the second magnetic member 520 is slidably engaged with the supporting member 550. At this time, the first magnetic member 510 and the second magnetic member 520 can be mounted on the motor base 600 by the fixing member 540 and the supporting member 550, and the supporting member 550 can guide the movement of the second magnetic member 520.
Specifically, the fixing member 540 is a bolt. The first magnetic member 510 abuts against one end of the nut of the fixing member 540, and the other end of the fixing member 540 is in threaded connection with the motor base.
In one embodiment, the force detector 300 is a pressure sensor or a strain sensor. In the contact process of the brake member 200 and the brake disc 100, the brake member 200 is subjected to pressure transmitted from the brake disc 100 and generates strain, so that the contact state of the brake member 200 and the brake disc 100 can be judged through stress or deformation of the brake member 200.
Alternatively, as shown in fig. 7, the number of the force detectors 300 may be one or at least two, and when the number of the force detectors 300 is at least two, the force detectors 300 are evenly distributed on the brake pad 210 or the brake shoe 220. The braking state of the brake disc 100 can be more comprehensively detected.
An embodiment discloses an elevator, which comprises a traction machine and the braking device, wherein the traction machine is used for driving the brake disc 100 to rotate, and the stress detector 300 is electrically connected with the traction machine.
In the elevator, the brake piece 200 can be used to be close to the brake disc 100 and contact with the brake disc 100 to brake the traction machine, or the brake piece 200 is far away from the brake disc 100 and is separated from the brake disc 100, when the brake piece 200 contacts with the brake disc 100, the brake piece 200 can be pressed by the brake disc 100, so that the stress detector 300 can detect the stress or deformation of the brake piece 200, and further judge whether the brake piece 200 brakes the traction machine, because whether the brake piece 200 contacts with the brake disc 100 or the contact force can be directly reacted by the stress or deformation of the brake piece 200, the data collected by the stress detector 300 keeps synchronous with the actual running state of the brake disc 100, the matching state of the brake piece 200 and the brake disc 100 can be correctly reflected, and the dangerous situation caused by asynchronization can be avoided.
Optionally, a control system for controlling the switch of the traction machine is arranged in the elevator, the control system is electrically connected with the stress detector 300, and the control system is used for receiving the signal of the stress detector 300 and controlling the switch of the traction machine according to the signal.
The elevator can adopt the following control method, comprising the following steps:
when the stress detector 300 senses that the brake piece 200 is not stressed, the stress detector 300 sends a first signal to start the traction machine;
when the force detector 300 senses that the brake member 200 is stressed and reaches a predetermined value, the force detector 300 sends a second signal to stop the traction machine.
The control method of the elevator comprises the steps that when the stress detector 300 senses that the brake piece 200 is not stressed, the brake piece 200 is separated from the brake disc 100, the stress detector 300 sends a first signal to enable the tractor to start, the tractor is started timely, the elevator can be prevented from slipping, when the stress detector 300 senses that the brake piece 200 is stressed, the brake piece 200 is in contact with the brake disc 100, the stress detector 300 sends a second signal to enable the tractor to stop, the situations of shifting and the like of the car can not occur when the tractor stops are guaranteed, the control method of the elevator can guarantee that the data collected by the stress detector 300 are kept synchronous with the actual running state of the brake disc 100, the matching state of the brake piece 200 and the brake disc 100 can be correctly reflected, and the dangerous situation caused by asynchronization can be avoided. Meanwhile, when the stress detector 300 senses that the stress of the brake piece 200 reaches a preset value, the brake piece 200 is in full contact with the brake disc 100, and the traction machine can be controlled to stop at the moment, so that the phenomenon of slipping is further prevented.
Specifically, when the brake element 200 contacts the brake disc 100, the value sensed by the force detector 300 gradually increases and reaches a certain value, which is the above-mentioned "predetermined value", and this indicates that the brake element 200 has sufficiently contacted the brake disc 100.
Specifically, the stress detector 300 sends a first signal to the control system, and the control system controls the traction machine to be started according to the first signal; the stress detector 300 sends a second signal to the control system, and the control system controls the traction machine to be closed according to the second signal. The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The braking device is characterized by comprising a braking disc, a braking piece and a stress detector, wherein the braking piece is used for moving in the direction close to or far away from the braking disc, the stress detector is arranged opposite to the braking piece, and the stress detector is used for sensing the stress of the braking piece.
2. The brake apparatus of claim 1, wherein the brake member includes a brake pad and a brake shoe connected to the brake pad, the brake pad is disposed opposite to the brake disc, and the force detector is disposed opposite to the brake pad; or the stress detector is arranged opposite to the brake shoe.
3. The brake device according to claim 2, further comprising an adjusting member, wherein when the force detector abuts against the brake pad, one end of the adjusting member is disposed on the brake shoe, the force detector is connected to the other end of the adjusting member, and the adjusting member is configured to adjust an initial state of the force detector.
4. The brake device according to claim 3, wherein a yielding notch is formed in a side surface of the brake pad close to the brake shoe, and the force detector extends into the yielding notch.
5. The brake apparatus of claim 4, wherein the relief notch is located in a middle portion of the brake pad.
6. A brake rigging according to claim 3, wherein a threaded bore is provided in a side of the brake shoe adjacent the brake plate, the adjustment member being threadedly engaged with the threaded bore.
7. The brake device according to claim 2, further comprising a first magnetic member, a second magnetic member and a brake spring, wherein the brake spring is disposed between the first magnetic member and the second magnetic member, the second magnetic member is connected to the brake shoe, and the first magnetic member is an electromagnet.
8. The braking device according to claim 7, further comprising a fixing member, a supporting member and a motor base, wherein the supporting member is connected to the first magnetic member and the motor base, the fixing member sequentially penetrates through the first magnetic member, the supporting member and the second magnetic member and is connected to the motor base, and the second magnetic member is slidably engaged with the supporting member.
9. A braking apparatus in accordance with any one of claims 1 to 8, characterised in that the force detector is a pressure sensor or a strain sensor.
10. An elevator, characterized in that it comprises a traction machine and a braking device according to any one of claims 1 to 9, the traction machine is used for driving the brake disc to rotate, and the force detector is electrically connected with the traction machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921311540.6U CN210594785U (en) | 2019-08-13 | 2019-08-13 | Brake device and elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921311540.6U CN210594785U (en) | 2019-08-13 | 2019-08-13 | Brake device and elevator |
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| Publication Number | Publication Date |
|---|---|
| CN210594785U true CN210594785U (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921311540.6U Active CN210594785U (en) | 2019-08-13 | 2019-08-13 | Brake device and elevator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110407054A (en) * | 2019-08-13 | 2019-11-05 | 日立电梯电机（广州）有限公司 | Brake apparatus, elevator and its control method |
| CN112174010A (en) * | 2020-09-27 | 2021-01-05 | 浙江理工大学 | Traction type elevator brake with brake performance detection function and elevator |
-
2019
- 2019-08-13 CN CN201921311540.6U patent/CN210594785U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110407054A (en) * | 2019-08-13 | 2019-11-05 | 日立电梯电机（广州）有限公司 | Brake apparatus, elevator and its control method |
| CN112174010A (en) * | 2020-09-27 | 2021-01-05 | 浙江理工大学 | Traction type elevator brake with brake performance detection function and elevator |
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