CN210068806U - Disc brake for clearance protection of coal mine lifting device - Google Patents
Disc brake for clearance protection of coal mine lifting device Download PDFInfo
- Publication number
- CN210068806U CN210068806U CN201920893722.2U CN201920893722U CN210068806U CN 210068806 U CN210068806 U CN 210068806U CN 201920893722 U CN201920893722 U CN 201920893722U CN 210068806 U CN210068806 U CN 210068806U
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- brake
- brake shoe
- disc
- pressure
- seat
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Abstract
The utility model discloses a disk floodgate of clearance protection for colliery hoisting device relates to the disk floodgate field. A disc brake for gap protection of a coal mine lifting device comprises a brake disc and a disc brake, wherein the disc brake comprises a brake shoe seat and a brake shoe, the brake shoe is fixedly connected to one side of the brake shoe seat through pressing plates and bolts on two sides of the brake shoe seat, a connecting shaft is arranged in the center of the other side of the brake shoe seat, an annular cavity is formed between the connecting shaft and the side wall of the brake shoe seat, a disc spring is sleeved on the connecting shaft and embedded in the annular cavity, a housing is sleeved on the outer side of the brake shoe seat, and the housing and one end, far away from the brake shoe, of the connecting shaft are connected with an oil cylinder structure; the brake disc is arranged on one side of the brake shoe far away from the brake shoe seat, and the clearance between the brake disc and the brake shoe is less than 2 mm; the brake shoe seat is characterized in that a mounting plate is arranged on the outer side of a pressing plate of the brake shoe seat, a travel switch is arranged on the mounting plate, a touch rod of the travel switch points to a brake disc, and the gap between the touch rod and the brake disc is 2 mm; and the top end of the touch rod is provided with a roller.
Description
Technical Field
The utility model relates to a disk floodgate field, in particular to disk floodgate of clearance protection for colliery hoisting device.
Background
The disc brake is an important matching device in a coal mine lifting device and a key core part for ensuring the safe operation of lifting straightening, and the final executing element of all electric control protection devices of the lifting device is the disc brake. And the clearance between the brake disc and the brake disc determines the safety and reliability of the lifting device during emergency braking. Therefore, the fourth hundred twenty-six provisions of the coal mine safety code specify that the clearance between the brake shoes and the brake disc of the disc brake is not more than 2 mm. The fourth hundred twenty three clear regulations of the coal mine safety regulations are that when the brake shoe clearance exceeds the specified value by 2mm, the brake shoe can give an alarm and lock the next driving. Therefore, the monitoring and protection of the working clearance of the disc brake are of great significance to the safe operation of the lifting device.
In the past, a disc brake clearance protection device generally monitors the movement distance of a brake shoe, and cannot effectively control the clearance of the brake shoe caused by abrasion, and when the abrasion loss of the brake shoe is too large, a travel switch does not respond, so that the aims of alarming and locking cannot be fulfilled; and when the brake shoe is worn to cause the travel switch to be in contact with the brake disc, sliding friction is formed between a touch rod of the travel switch and the brake disc, and the travel switch can be damaged. In addition, after the disc brake is used for a long time, the whole disc brake is loosened except that the brake shoe needs to be replaced regularly, and the traditional disc brake is lack of monitoring and early warning on the whole loosening condition.
Disclosure of Invention
The utility model aims to provide a: the utility model provides a disk brake of clearance protection for colliery hoisting device, solved the problem that can't carry out effective control to the brake shoe because the clearance that the wearing and tearing produced. After the brake shoe is slowly abraded to a certain degree by the arranged travel switch, a touch rod of a normally open contact of the travel switch is in contact with the brake disc, so that the normally open contact is closed, the brake shoe abrasion reaches a critical value, the information collected by the travel switch is transmitted to a control center, and the control center gives an alarm and locks the brake shoe. The utility model discloses set up the gyro wheel on travel switch's touch bar top, the sliding friction when touching bar and brake disc contact changes rolling friction into, has reduced frictional force, is a protection to travel switch. The utility model discloses the pressure monitoring device A that sets up can gather oil pressure information, prevents that the interior oil pressure of disk brake is too high to cause the potential safety hazard. The utility model discloses the pressure monitoring device B that sets up can gather disk brake overall stability information, prevents that the disk brake is whole to appear becoming flexible and to cause the potential safety hazard.
The utility model adopts the technical scheme as follows:
a disc brake for gap protection of a coal mine lifting device comprises a brake disc and a disc brake, wherein the disc brake comprises a brake shoe seat and a brake shoe, the brake shoe is fixedly connected to one side of the brake shoe seat through pressing plates and bolts on two sides of the brake shoe seat, a connecting shaft is arranged in the center of the other side of the brake shoe seat, an annular cavity is formed between the connecting shaft and the side wall of the brake shoe seat, a disc spring is sleeved on the connecting shaft and embedded in the annular cavity, a housing is sleeved on the outer side of the brake shoe seat, and the housing and one end, far away from the brake shoe, of the connecting shaft are connected with an oil cylinder structure; the brake disc is arranged on one side of the brake shoe far away from the brake shoe seat, and the clearance between the brake disc and the brake shoe is less than 2 mm;
the brake shoe seat is characterized in that a mounting plate is arranged on the outer side of a pressing plate of the brake shoe seat, a travel switch is arranged on the mounting plate, a touch rod of the travel switch points to a brake disc, and the gap between the touch rod and the brake disc is 2 mm; and the top end of the touch rod is provided with a roller.
The brake shoe can cause irrecoverable wear under long-term braking, leads to the brake shoe to be thinner and thinner, and the brake shoe will lose the braking effect after wearing and tearing to a certain degree, if not change the brake shoe in time, very easily cause the braking to become invalid and cause the safety problem, so need monitor to the brake shoe wearing and tearing degree to the staff in time changes the brake shoe. The utility model selects a pair of normally open contacts on the travel switch according to the braking principle of the disc brake, and sets the distance between the contacts and the brake disc to be just 2mm limit distance specified in coal mine safety regulation; when the brake shoe is slowly worn to a certain degree and is braked for a certain time, a touch rod of the normally open contact is in contact with the brake disc, so that the normally open contact is closed, the condition that the brake shoe is worn to reach a critical value is indicated, the information collected by the travel switch is transmitted to the control center, and the control center gives an alarm and locks the brake shoe.
The utility model discloses a travel switch's touch bar top is provided with the gyro wheel, because when brake shoe wearing and tearing lead to travel switch and brake disc contact, for sliding friction between travel switch's touch bar and the brake disc, can cause travel switch to damage. The roller is used for converting sliding friction into rolling friction, so that the friction force is reduced, and the travel switch is protected. It should be mentioned that the roller and the touch rod are inevitably contacted, and the material of the roller and the touch rod is the same as possible.
Further, the one end of keeping away from the brake shoe on the belleville spring is equipped with two at least pressure monitoring devices A, including the spring holder, the spring holder clamp is in annular cavity, and the inboard of spring holder is equipped with pressure gauge A, is connected through pressure plate A between pressure gauge A and the belleville spring.
The utility model discloses a pressure monitoring device A can gather oil pressure information. When the oil pressure in the oil cylinder structure is too high, the pressure of the spring seat on the disc spring is too high, and a pressure gauge A arranged on the inner side of the spring seat can monitor the pressure; in addition, due to the special structure of the disc spring, the pressure plate A is arranged between the disc spring and the pressure gauge because the pressure gauge A is directly used for measuring the pressure at the position easily causes inaccurate measurement. The pressure gauge A transmits the collected information to the signal exchange module, the signal exchange module processes the data and then displays the data on the display module in real time, and when the pressure value exceeds a set threshold value, the control center gives an alarm and locks the pressure value.
Further, be equipped with two at least pressure monitoring devices B between housing and the brake shoe seat, including pressure monitoring chamber, pressure gauge B and the coil spring that extend by the housing, coil spring's one end fixed connection brake shoe seat, other end fixed connection pressure plate B's one side, pressure plate B's the other side is connected pressure gauge B's sense terminal.
After the disc brake is used for a long time, the whole disc brake can loosen except that a brake shoe needs to be replaced regularly, and the traditional disc brake is lack of monitoring and early warning on the whole loosening condition. The utility model discloses a pressure monitoring device B can gather disk brake global stability information. When the whole disc brake looses, the part with pressure change firstly should be the junction of housing and brake head, and under normal circumstances, the pressure value that pressure gauge B gathered should be the same, when the pressure value difference is too big, then there is the whole not hard up hidden danger of disc brake. The pressure gauge B transmits the acquired information to the signal exchange module, the signal exchange module processes the data and then displays the data on the display module in real time, and when the difference of the pressure values exceeds a set threshold value, the control center gives an alarm and locks the pressure values.
Furthermore, the outer side of the pressing plate is wrapped with a rubber pad.
The rubber pad can carry out certain protection to the brake head when brake shoe wearing and tearing are serious.
Further, the system also comprises a clearance protection system, wherein the clearance protection system comprises a control center and a plurality of subsystems; the subsystem comprises a monitoring module, a signal exchange module and a display module; the monitoring module transmits the acquired information to the signal exchange module, and the signal exchange module processes the data and then displays the data on the display module in real time.
Further, the monitoring module comprises a travel switch, a pressure monitoring device A and a pressure monitoring device B, wherein the travel switch collects brake shoe wear degree information, the pressure monitoring device A collects oil pressure information, and the pressure monitoring device B collects overall stability information of the disc brake.
This clearance protection system can carry out many-sided protection early warning to the disk brake, like brake clearance, oil pressure intensity, the whole compactness of disk brake etc. can also set up other sensors and monitor more data, like spring fatigue etc.. When the monitoring data is abnormal, the control center can give an alarm and lock, and the occurrence of accidents can be effectively controlled.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the utility model relates to a colliery is disk brake of clearance protection for hoisting device, the travel switch of setting after the slow wearing and tearing certain degree of brake shoe, travel switch normally open contact's touch pole and brake disc contact for normally open contact is closed, then indicates that this brake shoe wearing and tearing reach the critical value, this information transmission to control center of travel switch collection, and report to the police and block by control center.
2. The utility model relates to a colliery is disk brake of clearance protection for hoisting device sets up the gyro wheel on travel switch's touch bar top, and the sliding friction when touching bar and brake disc contact changes rolling friction into, has reduced frictional force, is a protection to travel switch.
3. The utility model relates to a disk floodgate of clearance protection for colliery hoisting device, the pressure monitoring device A of setting can gather oil pressure information, prevents that the interior oil pressure of disk floodgate is too high to cause the potential safety hazard.
4. The utility model relates to a disk floodgate of clearance protection for colliery hoisting device, the pressure monitoring device B of setting can gather disk floodgate overall stability information, prevents that the disk floodgate is whole to appear becoming flexible and to cause the potential safety hazard.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a schematic view of the present invention;
fig. 2 is a schematic view of part a of the present invention;
fig. 3 is a schematic view of part B of the present invention;
fig. 4 is a schematic view of part C of the present invention;
in the figure, 1-brake disc, 2-brake shoe, 3-brake shoe seat, 31-connecting shaft, 32-annular cavity, 33-pressure plate, 34-bolt, 35-mounting plate, 4-disc spring, 5-travel switch, 51-touch rod, 52-roller, 6-housing, 61-pressure monitoring cavity, 62-pressure gauge B, 63-pressure plate B, 64-spiral spring, 7-oil cylinder structure, 8-spring seat, 81-pressure plate A, 82-pressure gauge A and 9-rubber pad.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The present invention will be described in detail with reference to fig. 1 to 4.
Example 1
A disc brake for gap protection of a coal mine lifting device is disclosed, as shown in figures 1 to 4, and comprises a brake disc 1 and a disc brake, wherein the disc brake comprises a brake shoe base 3 and a brake shoe 2, the brake shoe 2 is fixedly connected to one side of the brake shoe base 3 through a pressure plate 33 and a bolt 34 at two sides of the brake shoe base 3, a connecting shaft 31 is arranged in the center of the other side of the brake shoe base 3, an annular cavity 32 is formed between the connecting shaft 31 and the side wall of the brake shoe base 3, a disc spring 4 is sleeved on the connecting shaft 31, the disc spring 4 is embedded in the annular cavity 32, a housing 6 is sleeved on the outer side of the brake shoe base 3, and the housing 6 and one end, far away from the brake shoe 2, on the connecting shaft 31 are connected with an; the brake disc 1 is arranged on one side of the brake shoe 2 far away from the brake shoe seat 3, and the clearance between the brake disc 1 and the brake shoe 2 is less than 2 mm;
the brake shoe seat 3 is characterized in that a mounting plate 35 is arranged on the outer side of a pressure plate 33 of the brake shoe seat 3, a travel switch 5 is arranged on the mounting plate 35, a touch rod 51 of the travel switch 5 points to the brake disc 1, and the gap between the touch rod 51 and the brake disc 1 is 2 mm; the top end of the touch rod 51 is provided with a roller 52.
The utility model selects a pair of normally open contacts on the travel switch 5 according to the braking principle of the disc brake, and sets the distance between the contacts and the brake disc 1 to be just 2mm limit distance specified in coal mine safety regulation; after the brake shoe 2 is slowly worn to a certain degree, when the brake is applied for a certain time, the touch rod 51 of the normally open contact is contacted with the brake disc 1, so that the normally open contact is closed, the condition that the brake shoe 2 is worn to reach a critical value is shown, the information collected by the travel switch 5 is transmitted to the control center, and the control center gives an alarm and locks the brake.
The utility model discloses a trip lever 51 top of travel switch 5 is provided with gyro wheel 52 because when brake shoe 2 wearing and tearing lead to travel switch 5 and brake disc 1 to contact, be sliding friction between trip lever 51 of travel switch 5 and brake disc 1, can cause travel switch 5 to damage. The use of the roller 52 converts sliding friction into rolling friction, reduces the friction force, and is a kind of protection for the travel switch 5. It should be noted that the roller 52 and the touch bar 51 are inevitably in contact with each other, and the material of the roller 52 and the touch bar 51 is the same as possible.
Example 2
As shown in fig. 3, a pressure monitoring device a is arranged at one end of disc spring 4 away from brake shoe 2, and includes a spring seat 8, spring seat 8 is clamped in annular cavity 32, and a pressure gauge a82 is arranged inside spring seat 8, and pressure gauge a82 is connected with disc spring 4 through a pressure plate a 81.
The utility model discloses a pressure monitoring device A can gather oil pressure information. When the oil pressure in the oil cylinder structure 7 is too high, the pressure of the spring seat 8 on the disc spring is too high, and a pressure gauge A82 arranged inside the spring seat 8 can monitor the pressure; in addition, because of the special structure of belleville spring 4, pressure gauge a82 is used directly to measure the pressure therein, which is prone to cause measurement inaccuracies, and pressure plate a81 is provided between belleville spring 4 and pressure gauge a 82. The pressure gauge A82 transmits the information of gathering to the signal exchange module, and the signal exchange module shows on the display module after with data processing in real time, and after the pressure value exceeded the settlement threshold value, control center will report to the police and the shutting.
Example 3
As shown in fig. 2, a pressure monitoring device B is disposed between the housing 6 and the brake shoe holder 3, and includes a pressure monitoring cavity 61 extending from the housing 6, a pressure gauge B62, a pressure gauge B62, and a coil spring 64, wherein one end of the coil spring 64 is fixedly connected to the brake shoe holder 3, the other end of the coil spring is fixedly connected to one side of a pressure plate B63, and the other side of the pressure plate B63 is connected to a detection end of a pressure gauge B62.
After the disc brake is used for a long time, the whole disc brake can loosen except that the brake shoe 2 needs to be replaced regularly, and the traditional disc brake is lack of monitoring and early warning on the whole loosening condition. The utility model discloses a pressure monitoring device B can gather disk brake global stability information. When the whole disc brake looses, the part where pressure change firstly occurs should be the joint of the housing 6 and the brake shoe 3, normally, the pressure value collected by the pressure gauge B62 should be the same, and when the pressure value difference is too large, the whole disc brake loosens. The pressure gauge B62 transmits the information of gathering to the signal exchange module, and the signal exchange module shows on the display module after with data processing in real time, and when the difference of pressure value exceeded the settlement threshold value, control center will report to the police and the shutting.
Example 4
This example is a supplementary explanation of example 1.
The system also comprises a gap protection system, wherein the gap protection system comprises a control center and a plurality of subsystems, and the subsystems carry out information interaction through the control center; the subsystem comprises a monitoring module, a signal exchange module and a display module; the monitoring module transmits the acquired information to the signal exchange module, and the signal exchange module processes the data and then displays the data on the display module in real time.
The monitoring module comprises a travel switch 5, a pressure monitoring device A and a pressure monitoring device B, wherein the travel switch 5 collects the abrasion degree information of the brake shoe 2, the pressure monitoring device A collects the oil pressure information, and the pressure monitoring device B collects the overall stability information of the disc brake.
This clearance protection system can carry out many-sided protection early warning to the disk brake, like brake clearance, oil pressure intensity, the whole compactness of disk brake etc. can also set up other sensors and monitor more data, like spring fatigue etc.. When the monitoring data is abnormal, the control center can give an alarm and lock, and the occurrence of accidents can be effectively controlled. The system is safe and stable, high in distinguishing accuracy and convenient and fast to install.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can be covered within the protection scope of the present invention without the changes or substitutions conceived by the inventive work within the technical scope disclosed by the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (6)
1. The utility model provides a disk floodgate of clearance protection for colliery hoisting device which characterized in that: the brake shoe comprises a brake disc (1) and a disc brake, wherein the disc brake comprises a brake shoe seat (3) and a brake shoe (2), the brake shoe (2) is fixedly connected to one side of the brake shoe seat (3) through a pressing plate (33) and a bolt (34) on two sides of the brake shoe seat (3), a connecting shaft (31) is arranged in the center of the other side of the brake shoe seat (3), an annular cavity (32) is formed between the connecting shaft (31) and the side wall of the brake shoe seat (3), a disc spring (4) is sleeved on the connecting shaft (31), the disc spring (4) is embedded in the annular cavity (32), a housing (6) is sleeved on the outer side of the brake shoe seat (3), and the housing (6) and one end, far away from the brake shoe (2), of the connecting shaft (31) are connected with an oil cylinder structure (; the brake disc (1) is arranged on one side, far away from the brake shoe seat (3), of the brake shoe (2), and the gap between the brake disc (1) and the brake shoe (2) is smaller than 2 mm;
a mounting plate (35) is arranged on the outer side of a pressing plate (33) of the brake shoe seat (3), a travel switch (5) is arranged on the mounting plate (35), a touch rod (51) of the travel switch (5) points to the brake disc (1), and the gap between the touch rod (51) and the brake disc (1) is 2 mm; the top end of the touch rod (51) is provided with a roller (52).
2. The gap-protected disc brake for coal mine lifting devices of claim 1, wherein: one end of disc spring (4) far away from brake shoe (2) is equipped with two at least pressure monitoring devices A, including spring holder (8), spring holder (8) clamp is in annular cavity (32), and the inboard of spring holder (8) is equipped with pressure gauge A (82), is connected through pressure plate A (81) between pressure gauge A (82) and disc spring (4).
3. The gap-protected disc brake for coal mine lifting devices of claim 1, wherein: be equipped with two at least pressure monitoring devices B between cover shell (6) and brake shoe seat (3), include pressure monitoring chamber (61), pressure gauge B (62) and coil spring (64) that extend by cover shell (6), one end fixed connection brake shoe seat (3) of coil spring (64), one side of other end fixed connection pressure plate B (63), the sense terminal of pressure gauge B (62) is connected to the opposite side of pressure plate B (63).
4. The gap-protected disc brake for coal mine lifting devices of claim 1, wherein: the outer side of the pressing plate (33) is wrapped with a rubber pad (9).
5. The gap-protected disc brake for coal mine lifting devices of claim 1, wherein: the system also comprises a clearance protection system, wherein the clearance protection system comprises a control center and a plurality of subsystems; the subsystem comprises a monitoring module, a signal exchange module and a display module; the monitoring module transmits the acquired information to the signal exchange module, and the signal exchange module processes the data and then displays the data on the display module in real time.
6. A gap-protected disc brake for coal mine lifting equipment as claimed in claim 5, wherein: the monitoring module comprises a travel switch (5), a pressure monitoring device A and a pressure monitoring device B, wherein the travel switch (5) collects the abrasion degree information of the brake shoe (2), the pressure monitoring device A collects oil pressure information, and the pressure monitoring device B collects the integral stability information of the disc brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920893722.2U CN210068806U (en) | 2019-06-14 | 2019-06-14 | Disc brake for clearance protection of coal mine lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920893722.2U CN210068806U (en) | 2019-06-14 | 2019-06-14 | Disc brake for clearance protection of coal mine lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210068806U true CN210068806U (en) | 2020-02-14 |
Family
ID=69457672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920893722.2U Expired - Fee Related CN210068806U (en) | 2019-06-14 | 2019-06-14 | Disc brake for clearance protection of coal mine lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210068806U (en) |
-
2019
- 2019-06-14 CN CN201920893722.2U patent/CN210068806U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200214 Termination date: 20200614 |
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| CF01 | Termination of patent right due to non-payment of annual fee |