CN214888516U - Disc brake with cylindrical sensor for monitoring braking positive pressure - Google Patents
Disc brake with cylindrical sensor for monitoring braking positive pressure Download PDFInfo
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- CN214888516U CN214888516U CN202120803888.8U CN202120803888U CN214888516U CN 214888516 U CN214888516 U CN 214888516U CN 202120803888 U CN202120803888 U CN 202120803888U CN 214888516 U CN214888516 U CN 214888516U
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- cylinder
- pressure sensor
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Abstract
A disc brake with cylinder sensor for monitoring the positive braking pressure is composed of base, boss and cylinder, and features that when braking, the brake disc applies positive braking pressure F to brake shoe1The cylinder applies pressure F to the boss by acting on the base through the brake shoe2The cylinder between the base and the boss is F1And F2Under the action of the force, produce compression deformation, F1＝‑F2Deformation and braking positive pressure F1In direct proportion, a pressure strain gauge is pasted on the outer circular surface of the cylinder to monitor the braking positive pressure F1According to a positive braking pressure F1The fault can be diagnosed and the control instruction can be given: before starting, the vehicle is allowed to be started when the vehicle is equal to zero, and the vehicle is locked and started at the next time when the fault is not opened when the diagnosis brake is not equal to zero; when the brake is operated, the brake application fault which is not equal to zero diagnosis starts the safety brake; when braking, the allowable value which is more than or equal to the braking positive pressure allows the next driving, and the allowable value which is less than the braking positive pressure diagnoses that the braking positive pressure is insufficient and the fault locks the next driving.
Description
Technical Field
The utility model relates to a disc brake of monitoring braking positive pressure, especially a disc brake of cylinder sensor monitoring braking positive pressure suitable for mine winder.
Background
The monitoring of the brake positive pressure sensor is to monitor the brake positive pressure of the brake shoes pressing on the brake disc, and the brake positive pressure cannot be influenced by friction. Patent No. ZL20071025205.5 discloses a "disc brake for monitoring positive brake pressure in braking condition", in which a pressure strain gauge is attached to a coupling bolt, and the monitored pressure is not positive brake pressure but the sum of the positive brake pressure applied to a brake disc by a brake shoe and the friction between a brake shoe hole and a brake shoe shaft. Because the disc brake of monitoring braking positive pressure under the braking state is in the use, it has been appeared that the fatlute has been filled with between stopper seat hole and the brake shoe axle, leads to under the braking state, and the frictional force between stopper seat hole and the brake shoe axle equals the dish spring power that belleville spring produced, can not promote the brake shoe and remove, and the brake shoe is not pressed on the brake disc, and the braking positive pressure that the brake shoe was applyed on the brake disc is zero to lead to falling the major accident of skip, it is zero reason not to monitor braking positive pressure: the attachment of the coupling bolt with the pressure strain gauge monitors the friction between the brake shoe bore and the brake shoe shaft and is therefore erroneously considered to be equal to the brake positive pressure, and no serious fault with zero brake positive pressure has been diagnosed.
SUMMERY OF THE UTILITY MODEL
The technical problem is as follows: the utility model aims at overcoming the weak point among the prior art, provide a utility model with the stopper of cylinder sensor monitoring brake shoe and pressing the braking normal pressure on the brake disc.
The technical scheme is as follows: the utility model discloses a disc brake of cylinder sensor monitoring braking positive pressure mainly by brake disc, brake shoe, braking positive pressure sensor, barrel, dish spring group, key one, key two, stopper seat, pneumatic cylinder, sealing washer one, piston,The brake positive pressure sensor is connected with the brake shoe, and the monitoring brake disc applies a brake positive pressure F to the brake shoe1(ii) a The brake positive pressure sensor is composed of a base, a boss and a cylinder, the cross section of the brake positive pressure sensor is in a shape of a Chinese character 'tu', the right end of the base is connected with a brake shoe through a dovetail groove to bear the brake positive pressure F acted on the brake shoe by a brake disc1The boss penetrates through the inner hole of the cylinder body, a key II is arranged between the boss and the inner hole of the cylinder body in a static fit mode, the boss supports the bottom of the inner hole of the cylinder body and bears the resultant force F of the disc spring force, the friction force and the oil pressure force applied to the bottom of the inner hole of the cylinder body2A gap delta is reserved between the end surface of the bottom of the cylinder and the left end surface of the base of the brake positive pressure sensor, and the cylinder is in movable fit with the hole of the brake base and is provided with a key I; one end of a cylinder of the braking positive pressure sensor penetrates through the piston and is fixed through a nut; a pressure strain gauge is attached to the cylindrical surface between the base and the boss of the braking positive pressure sensor, a strain signal is led out by a signal wire, and the braking positive pressure F is monitored by the strain gauge1。
The gap delta between the end face of the bottom of the cylinder and the base of the braking positive pressure sensor is 2 mm.
2-4 pressure strain gauges are attached to the cylindrical surface between the chassis and the boss of the braking positive pressure sensor.
Has the advantages that: since the technical scheme is used, the utility model discloses apply the brake shoe of monitoring to the basis of the braking positive pressure of brake disc as diagnosis trouble and giving control command: before starting, if the starting is equal to zero, the starting is allowed, if the starting is not equal to zero, the fault is not opened by the diagnosis brake, and the current starting is locked; when the brake is in operation, if the brake is not equal to zero, the brake application fault is diagnosed, and the safety brake is started; when braking, the braking positive pressure allowable value is larger than or equal to the braking positive pressure allowable value, the next driving is allowed, and when the braking positive pressure allowable value is smaller than the braking positive pressure allowable value, the failure caused by insufficient braking positive pressure is diagnosed, and the next driving is locked. The braking effect of the disc brake of the elevator is greatly improved.
Drawings
Fig. 1 shows the closing brake state of the disc brake with the cylinder sensor monitoring the positive brake pressure.
Fig. 2 is the disc brake opening state of the cylinder sensor monitoring the positive pressure of the brake.
In the figure: 1-brake disc; 2, brake shoe; 3-brake positive pressure sensor; 3-1-pressure strain gauge; 3-2-signal line; 4, a cylinder body; 5, a disc spring group; 6-bond one; 7-bond two; 8-a brake seat; 9-a hydraulic cylinder; 10, sealing ring one; 11-a piston; 12-adjusting screws; 13-a nut; 14, sealing ring II; 15-rear cover.
Detailed Description
The invention will be further described with reference to the following examples in which:
the utility model discloses a disc brake of cylinder sensor monitoring braking positive pressure mainly comprises brake disc 1, brake shoe 2, braking positive pressure sensor 3, barrel 4, dish spring group 5, key 6, key two 7, brake seat 8, pneumatic cylinder 9, sealing washer 10, piston 11, adjusting screw 12, nut 13, sealing washer two 14 and back lid 15, braking positive pressure sensor 3 link together with brake shoe 2, monitoring brake disc 1 exerts braking positive pressure F to brake shoe 21(ii) a The braking positive pressure sensor 3 is composed of a base, a boss and a cylinder, the cross section of the braking positive pressure sensor is in a shape of a Chinese character 'tu', and 2-4 pressure strain gauges 3-1 are attached to the surface of the cylinder between a base plate of the braking positive pressure sensor 3 and the boss. The right end of the base is connected with the brake shoe 2 in a dovetail groove mode to bear the brake positive pressure F of the brake disc 1 acting on the brake shoe 21The boss penetrates through the inner hole of the cylinder body 4, a second key 7 is arranged between the boss and the inner hole of the cylinder body 4 in a static fit mode, the boss supports the bottom of the inner hole of the cylinder body 4 and bears the resultant force F of the disc spring force, the friction force and the oil pressure applied to the bottom of the inner hole of the cylinder body 42And a gap delta is reserved between the end surface of the bottom of the cylinder 4 and the left end surface of the base of the braking positive pressure sensor 3, and the gap delta is 2 mm. The cylinder body 4 is movably matched with a hole of the brake seat 8 and is provided with a key I6; one end of a cylinder of the braking positive pressure sensor 3 penetrates through the piston 11 and is fixed through a nut 13; a pressure strain gauge 3-1 is attached to the cylindrical surface between the base and the boss of the braking positive pressure sensor 3, a strain signal is led out by a signal wire 3-2, and the braking positive pressure is monitored by the strain gauge 3-1Force F1。
Claims (4)
1. A disc brake with a cylinder sensor monitoring positive brake pressure, comprising: brake disc (1), brake shoe (2), braking positive pressure sensor (3), barrel (4), dish spring group (5), brake seat (8), pneumatic cylinder (9), sealing washer (10), piston (11), adjusting screw (12), sealing washer two (14) and back lid (15), its characterized in that: the brake positive pressure sensor (3) is composed of a base, a boss and a cylinder, the cross section of the brake positive pressure sensor is in a shape of a Chinese character 'tu', the right end face of the base of the brake positive pressure sensor (3) is connected with the brake shoe (2) together, and the brake positive pressure sensor bears the brake positive pressure F acted on the brake shoe (2) by the brake disc (1)1The boss of the braking positive pressure sensor (3) penetrates through the inner hole of the cylinder body (4), the boss is in static fit with the inner hole of the cylinder body (4), and the boss supports the bottom of the inner hole of the cylinder body (4) and bears the resultant force F of the disc spring force, the friction force and the oil pressure applied by the disc spring group (5) at the bottom of the inner hole of the cylinder body (4)2A gap delta is reserved between the end surface of the bottom of the cylinder (4) and the left end surface of the base of the brake positive pressure sensor (3), and the cylinder (4) is in movable fit with a hole of the brake base (8); one end of a cylinder of the braking positive pressure sensor (3) penetrates through the piston (11) and is fixed through a nut (13); a pressure strain gauge (3-1) is attached to the cylindrical surface between the base and the boss of the braking positive pressure sensor (3), the pressure strain gauge (3-1) is connected with a signal line (3-2) extending out of the braking positive pressure sensor (3), and the pressure strain gauge (3-1) is used for monitoring the braking positive pressure F in real time1And (4) outputting the signal.
2. The disc brake with cylinder sensor monitoring positive brake pressure according to claim 1, characterized in that: the gap delta between the end face of the bottom of the cylinder (4) and the base of the braking positive pressure sensor (3) is 2 mm.
3. The disc brake with cylinder sensor monitoring positive brake pressure according to claim 1, characterized in that: 2-4 pressure strain gauges (3-1) are attached to the cylindrical surface between the base of the braking positive pressure sensor (3) and the boss.
4. A disc brake with a cylinder sensor monitoring positive brake pressure according to claim 1 or 3, characterized in that: the base of the brake positive pressure sensor (3) is of a disc structure which is connected with the cylinder into a whole and is directly connected with the brake shoe (2) in a dovetail groove mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120803888.8U CN214888516U (en) | 2021-04-20 | 2021-04-20 | Disc brake with cylindrical sensor for monitoring braking positive pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120803888.8U CN214888516U (en) | 2021-04-20 | 2021-04-20 | Disc brake with cylindrical sensor for monitoring braking positive pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214888516U true CN214888516U (en) | 2021-11-26 |
Family
ID=78948041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120803888.8U Active CN214888516U (en) | 2021-04-20 | 2021-04-20 | Disc brake with cylindrical sensor for monitoring braking positive pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214888516U (en) |
-
2021
- 2021-04-20 CN CN202120803888.8U patent/CN214888516U/en active Active
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