CN211175139U - Open oil cylinder sensing intelligent brake for hoister - Google Patents
Open oil cylinder sensing intelligent brake for hoister Download PDFInfo
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- CN211175139U CN211175139U CN201922244426.2U CN201922244426U CN211175139U CN 211175139 U CN211175139 U CN 211175139U CN 201922244426 U CN201922244426 U CN 201922244426U CN 211175139 U CN211175139 U CN 211175139U
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Abstract
The utility model relates to an open oil cylinder sensing intelligent brake for a lifter, wherein an intelligent brake sensor is arranged at the periphery of one end of the open intelligent brake oil cylinder, which is contacted with a disc spring pad, and the open intelligent brake oil cylinder and the sensor are both contacted with the disc spring pad after the sensor is arranged in place; sensing spokes are arranged between the outer ring and the inner ring of the sensor at intervals, a strain gauge for testing the brake positive pressure is adhered to the side surface of each spoke to form a stress sensitive area, and a first interface on the rear side surface of the sensor and a first interface on the rear side surface of the sensing spokes are not in contact with a first interface on the front side surface of the oil cylinder; the inner wall of the inner circular ring of the sensor, the second interface of the rear side surface of the sensor and the third interface of the rear side surface of the sensor are in close contact with the oil cylinder. The utility model discloses can detect braking positive pressure data when the lifting machine closes a floodgate, for whether up to standard provides a direct monitoring means of lifting machine braking force moment, help directly perceived quick understanding lifting machine braking force condition to can make judgement and adjustment rapidly, guarantee the braking safety of lifting machine.
Description
Technical Field
The utility model relates to a mine winder equipment on-the-spot safe operation, maintenance and control field specifically are an open hydro-cylinder sensing intelligence floodgate for lifting machine.
Background
The mining hoister is a key device for underground mining and transportation of metal ores and coal, and particularly, the braking force of a brake system of the hoister needs to be maintained within a safety limit so as to ensure the safety and reliability of the working brake and the safe emergency brake of the whole system in the working process.
The former brake force control measure for the brake of the elevator is a qualitative method which is reasonable in maintaining the brake opening clearance value in the range of 0-2mm and basically indirectly ensures that the brake force is not greatly reduced, the real data of the brake force cannot be really mastered, the brake force cannot be directly known if the brake force reaches the standard, an indirect reference standard and an operation specification which relate to whether the control brake force is in the normal range are indirectly determined by the brake opening clearance value, and the current brake force detection method is lack of a real and reliable quantitative means.
The total moment of braking of lifting machine system is by the comprehensive decision of the braking force of the whole brake of arresting gear system configuration, and every brake is total braking moment's contribution cell cube promptly, has solved the actual braking force numerical value accuracy of monitoring of each cell cube and has solved the accuracy of lifting machine total moment of braking monitoring promptly, the utility model discloses the cell cube essence technique that solves is exactly the utility model discloses an open hydro-cylinder sensing intelligence floodgate structure.
Disclosure of Invention
In order to solve the problems, the utility model provides an open oil cylinder sensing intelligent brake for a lifter, an intelligent brake sensor is arranged at the periphery of one end of the open intelligent brake oil cylinder, which is contacted with a disc spring pad, and the open intelligent brake oil cylinder and the sensor are both contacted with the disc spring pad after the sensor is arranged in place; the sensing spoke side of intelligence floodgate sensor is pasted and is had the foil gage that is used for surveing braking positive pressure and form the atress sensitive area, and built on stilts all contactless between outer ring trailing flank of sensor and sensing spoke and the hydro-cylinder, in the sensor between ring trailing flank and the hydro-cylinder in close contact with, the utility model discloses can detect braking positive pressure data when the lifting machine closes a floodgate, for whether up to standard provides a direct monitoring means of lifting machine braking moment, help directly perceived quick understanding lifting machine braking force condition to can make judgement and adjustment rapidly, guarantee the braking safety of lifting machine.
The purpose of the utility model and the technical problem thereof are realized by adopting the following technical scheme. According to the utility model provides an open hydro-cylinder sensing intelligence floodgate for hoist, including the shell body that is fixed in intelligence floodgate brake seat, set up in the shell body and with shell body sliding connection's barrel, the brake shoe layering that fastens together through housing screw with the barrel, set up the brake shoe before the brake shoe layering, adjusting nut with shell body afterbody threaded connection, wherein, be provided with open intelligence floodgate hydro-cylinder in the adjusting nut, adjusting nut afterbody is provided with intelligent floodgate hydro-cylinder lid, it is fixed between intelligence floodgate hydro-cylinder lid and the open intelligence floodgate hydro-cylinder, open intelligence floodgate hydro-cylinder is sealed by intelligent floodgate hydro-cylinder lid with the piston of locating in this hydro-cylinder, tensioning bolt passes piston mesopore and is connected with barrel axis thread, still be provided with the support cover between tensioning bolt and the piston, seal through O type circle between support cover and the piston, make tensioning bolt through the pretightning force of threaded connection between, The supporting sleeve, the piston, the cylinder middle shaft and the cylinder are connected into a whole; the periphery of a middle shaft of the barrel is provided with a disc spring, the tail part of the disc spring is provided with a disc spring pad, an intelligent brake sensor is arranged on the periphery of one end, in contact with the disc spring pad, of an open type intelligent brake oil cylinder and fixed between the open type intelligent brake oil cylinder and the oil cylinder, the open type intelligent brake oil cylinder and the sensor are both in contact with the disc spring pad after the sensor is arranged in place, and the sensor, the oil cylinder and an adjusting nut are in sliding contact;
the sensor comprises an outer ring and an inner ring, a plurality of sensing spokes are uniformly distributed between the outer ring and the inner ring, a space is arranged between every two adjacent spokes, a strain gauge is pasted on the side surface of each spoke to serve as a sensitive stressed electronic device to form a stress sensitive area, the side surface of the sensor, which is contacted with the disc spring pad, is defined as a front side surface, the opposite side surface of the sensor is a rear side surface, the distance t3 between a first interface of the rear side surface of the sensor and a first interface of the front side surface of the oil cylinder is 0.1-3.0mm, and the sensing spokes are not contacted with the oil cylinder; the inner wall of the inner circular ring of the sensor, the second interface of the rear side surface of the sensor and the third interface of the rear side surface of the sensor are in close contact with the oil cylinder.
When the elevator is switched on, the brake shoe is tightly attached to the brake disc to apply a braking positive pressure to the brake disc, meanwhile, the reaction force of the brake shoe on the braking positive pressure of the brake disc is transmitted to the load bearing surface of the sensor and reaches the force load bearing interface through the sensing spoke to be resisted by the adjusting nut, and the force sensing area of the sensor is sensed and detects the braking positive pressure during switching on.
Further, the distance t1 between one end of the piston close to the oil cylinder cover and the inner wall of the oil cylinder cover is t1 > 0; the distance t2 between one end of the tension bolt close to the oil cylinder cover and the end cover of the oil cylinder cover, and t2 is larger than or equal to t 1.
Furthermore, the number of sensing spokes uniformly distributed between the outer ring and the inner ring of the sensor is 4, 8 or 12.
The utility model discloses following beneficial effect has:
the utility model discloses an at the periphery installation intelligence floodgate sensor of open intelligence floodgate hydro-cylinder and dish spring pad contact one end, make the leading flank and the dish spring pad of sensor and hydro-cylinder all contact, the overhead all contactless between outer ring trailing flank of sensor and sensing spoke and the hydro-cylinder leading flank first side, and the equal in close contact with hydro-cylinder of ring trailing flank third interface in ring inner wall, the sensor in ring trailing flank second interface and the sensor in the sensor. The sensing spoke side is pasted with the foil gage that is used for surveing braking positive pressure and forms the atress sensing district, and this structure enables intelligent floodgate and can detect real braking positive pressure through the sensor when braking to the lifting machine, provides a direct detection means for the judgement of lifting machine braking positive pressure, helps directly perceived quick understanding lifting machine braking force condition to can make the judgement rapidly and adjust, guarantee the braking safety of lifting machine.
The utility model discloses a direct detection to the true braking positive pressure of brake floodgate and through the intelligent analysis of computer extend to the total braking torque of verifying under the lifting machine system running state of brake force of intelligence floodgate actual measurement in order to judge whether it accords with the relevant safety standard requirement that the country issued, have realistic meaning very much to mine operation equipment engineering practice.
Drawings
FIG. 1 is a main view of a hoist with a smart brake as the braking component;
FIG. 2 is a top plan view of the hoist;
FIG. 3 is a schematic perspective view of an open cylinder sensing intelligent brake;
FIG. 4 is a cross-sectional view of an open cylinder sensing smart brake cylinder assembly;
FIG. 5 is a cross-sectional view of an open cylinder sensing smart brake;
FIG. 6 is an enlarged view of portion A of FIG. 5;
FIG. 7 is a front view of the smart brake sensor;
FIG. 8 is a sectional view taken along line H-H in FIG. 7;
FIG. 9 is a cross-sectional view taken along line J-J of FIG. 7;
FIG. 10 is a schematic view of the strain gage placement angles along the side view of spokes K1 and K2;
FIG. 11 is a schematic diagram of a bridge test circuit formed by eight R1-R8 strain gauges connected together.
[ description of main elements and symbols ]
I-elevator brake disc, II-open cylinder sensing intelligent brake, III-intelligent brake seat, IV-elevator spindle device bearing seat, V-bearing seat supporting beam, VI-spindle device winding drum, VII-elevator steel wire rope, 1-outer shell, 2-oil cylinder cover, 3-brake shoe layering, 4-compression screw, 5-brake shoe, 6-disc spring, 7-oil inlet channel, 8-disc spring pad, 9-adjusting nut, 10-cylinder, 11-supporting sleeve, 12-O-shaped ring, 13-tensioning bolt, 14-cylinder center shaft, 15-piston, 16-open type intelligent brake cylinder, 17-intelligent brake sensor, 18-sealing ring I, 19-sealing ring II and 20-force load bearing interface, 21-load bearing face, 22-rear side face of sensing spoke, 23-end cover, 24-outer ring of sensor, 25-inner ring of sensor, 26-bolt hole for fixing sensor and oil cylinder, 27-sensing spoke, 28-space between adjacent spokes, 29-first interface of rear side face of sensor, 30-first interface of front side face of oil cylinder, 31-inner ring inner wall of sensor, 32-second interface of rear side face of sensor, 33-third interface of rear side face of sensor, 34-K1 visual side face, 35-K2 visual side face, 36-strain gauge R1 and 37-strain gauge R2.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description, with reference to the accompanying drawings and preferred embodiments, will be made to the detailed description of the specific embodiments, features and effects of the open cylinder sensing intelligent brake for the elevator according to the present invention.
As shown in fig. 1, intelligent brake bases iii are installed on the left side and the right side of a hoist brake disc i, an open cylinder sensing intelligent brake ii (hereinafter referred to as an intelligent brake) is fixed on the intelligent brake bases, the intelligent brake ii comprises an outer shell 1 fixed on the intelligent brake bases, a cylinder 10 arranged in the outer shell and slidably connected with the outer shell, and a disc spring 6 arranged in the cylinder 10, a brake shoe press strip 3 fastened with the cylinder through a compression screw 4, a brake shoe 5 arranged in front of the brake shoe press strip, an adjusting nut 9 in threaded connection with the tail of the outer shell, and the like, an open intelligent brake cylinder 16 (hereinafter referred to as a cylinder) is arranged in the adjusting nut, an intelligent brake cylinder cover 2 is arranged at the tail of the adjusting nut, the intelligent brake cylinder cover and the cylinder 16 are fastened together through screws (the screws are not shown in the figure), and oil inlet and outlet of the; the oil cylinder 16 and the intelligent brake piston 15 arranged in the oil cylinder are tightly sealed and fastened by the intelligent brake oil cylinder cover 2, the tension bolt 13 penetrates through a piston middle hole and is in threaded connection with the cylinder middle shaft 14, a support sleeve 11 is further arranged between the tension bolt and the piston and is used for supporting the tension bolt, the support sleeve and the piston are sealed through an O-shaped ring 12 and soft connection between the support sleeve and the piston is achieved, and the tension bolt 13, the support sleeve 11, the piston 15, the cylinder middle shaft 14 and the cylinder 10 are connected into a whole through pretightening force of threaded connection between the tension bolt 13 and the cylinder middle shaft 14. The distance t1 between the end of the piston close to the oil cylinder cover and the inner wall of the oil cylinder cover is used for providing a moving space for the piston to move under the action of high pressure of hydraulic oil, the distance t2 between the end of the tensioning bolt close to the oil cylinder cover and the end cover 23 of the oil cylinder cover is t2, and the distance t1 is larger than or equal to t 3526. A sealing ring I18 and a sealing ring II 19 are further arranged between the piston and the oil cylinder and used for preventing oil leakage, and the specific positions of the sealing ring I and the sealing ring II are shown in figure 5. The periphery of a cylinder center shaft 14 is provided with a disc spring 6, the tail part of the disc spring is provided with a disc spring pad 8, an intelligent brake sensor 17 (hereinafter referred to as a sensor) is arranged on the periphery of one end, in contact with the disc spring pad, of the oil cylinder and is fixed with the oil cylinder through bolts (see bolt holes 26 for fixing the sensor with the oil cylinder in figures 7 and 8), and the oil cylinder and the sensor are in contact with the disc spring pad after the sensor is arranged in place, as shown in figure 5. The sensor, the oil cylinder and the adjusting nut are in sliding contact, and the sensor and the outer shell are not in contact.
As shown in fig. 7, the sensor includes an outer ring 24 and an inner ring 25, a plurality of sensing spokes 27 (hereinafter referred to as spokes) are uniformly distributed between the outer ring and the inner ring, and fig. 7 shows 4 spokes, or 8 or 12 spokes, etc. The two ends of each spoke are respectively connected with the outer circular ring and the inner circular ring of the sensor, a space 28 is arranged between every two adjacent spokes, strain gauges serving as sensitive stressed electronic devices are adhered to two side faces of each spoke, the strain gauges can be adhered to only one side face of the spoke, and the strain gauges are adhered to the two side faces in an ideal method. If there are four spokes, the number of the strain gauges is 8, which are respectively R1, R2, R3, R4, R5, R6, R7 and R8, and the sticking positions of the strain gauges are shown in FIG. 7 and FIG. 10.
As shown in fig. 6, the sensor is installed on the periphery of the end of the oil cylinder, which is in contact with the disc spring pad, the oil cylinder and the sensor are both in contact with the disc spring pad after the sensor is installed in place, and the sensor and the part of the outer circumference of the oil cylinder, which is in contact with the inner wall of the adjusting nut, are both in sliding contact; define the one side of sensor and disc spring pad contact to be the leading flank, its relative another side is the trailing flank, in order to detect real braking positive pressure data when closing a floodgate, requires the utility model discloses there is interval t3 between first interface 29 of sensor trailing flank (being the first interface of outer ring trailing flank of sensor) and the first interface 30 of hydro-cylinder leading flank, and t3 is 0.1-3.0mm, is overhead state between the first interface of sensor trailing flank and the first interface of hydro-cylinder leading flank promptly, both contactless. Meanwhile, the rear side surface 22 of the sensing spoke is not in contact with the oil cylinder, but the inner wall 31 of the inner ring of the sensor is in close contact with the oil cylinder, and a second interface 32 (namely, a second interface of the rear side surface of the inner ring of the sensor) and a third interface 33 (namely, a third interface of the rear side surface of the inner ring of the sensor) of the rear side surface of the sensor are in close contact with the oil cylinder.
The following describes the opening and closing processes of the intelligent brake in detail:
when the brake is opened, the brake shoe is required to be separated from the brake disc of the elevator, hydraulic oil provided by an elevator hydraulic station enters an inner cavity of the intelligent brake cylinder from an oil inlet channel of the cylinder to push the piston to move towards the cylinder cover (the right side shown in fig. 5), the piston, the support sleeve, the tension bolt, the cylinder body and the brake shoe are connected into a whole through pretightening force in threaded connection between the tension bolt and the center shaft of the cylinder body, the cylinder body and the brake shoe are in sliding contact with the inner wall of the outer shell after the brake shoe is separated from the brake disc when the brake is opened, the cylinder body and the brake shoe are driven by the tension bolt to synchronously move towards the cylinder cover to compress the disc springs when the piston moves towards the cylinder cover, and the disc springs are compressed and deformed to accumulate force and the disc spring pads limit the total compression deformation of the. The force accumulated by the compression deformation of the disc spring is used as a condition for forming a braking positive pressure between the brake shoe and the brake disc during closing so as to form braking on the brake disc of the running hoisting machine when necessary.
When the intelligent brake is switched on, the force quantity which needs the disc spring to release and accumulate releases the braking positive pressure on the brake disc of the elevator through the brake shoe to form friction torque to drive the elevator to brake, at the moment, hydraulic oil in the inner cavity of the intelligent brake oil cylinder is released into a hydraulic station through the oil inlet channel of the oil cylinder, at the moment, the pretightening resilience force of the disc spring drives the piston, the support sleeve, the tensioning bolt, the cylinder body and the brake shoe to move towards the direction of the brake disc (the left side shown in figure 5), finally, the brake shoe is tightly attached to the brake disc to apply the braking positive pressure on the brake disc, and the braking friction force is formed on the rotating brake disc under the. When a brake positive pressure is applied to a brake disc, according to a mechanical rule that the magnitude of an acting force and the magnitude of a counterforce are equal and the directions are opposite, the counterforce of the brake positive pressure applied to the brake disc by a brake shoe is transmitted to an inner ring on the front side surface of a sensor through a disc spring and a disc spring pad in a cylinder body, the acting force borne by a force load bearing surface 21 of the inner ring on the front side surface of the sensor is transmitted to a force load bearing interface 20 in contact with an adjusting nut through a spoke mechanics sensitive area (a strain gauge) of the sensor and an outer ring of the sensor and then borne and blocked by the adjusting nut, the adjusting nut transmits the complete force to an intelligent brake seat fixedly connected with an outer shell through a thread of the outer shell of the intelligent brake, finally the force is transmitted to the ground to form mechanical balance, the strain gauge on the sensor spoke (the strain gauge is connected with a computer through a signal wire) senses a real load and then converts the real load into an electric signal wire, and detecting the brake positive pressure during closing through a sensor.
FIG. 7 shows four spokes, each of which has 8 strain gauges adhered to both sides, wherein the strain gauges R1, R2, R3, R4, R5, R6, R7 and R8 are connected to the computer circuit according to the circuit connection shown in FIG. 11 for analysis and calculation, and positive pressure values are displayed. The conversion from a strain signal to an electrical signal output is expressed in a formula as follows:
the wire grid resistance value of the strain gauge is expressed as R, and when the bonding position of the strain gauge generates micro strain due to stressOutput voltage variation △ U of bridge circuitOutput ofAnd an input excitation voltage UInput deviceThe ratio of (A) to (B) has the following relation equation of △ UOutput of/UInput device＝((△R1+△R3)/(R1+R3)+(△R5+△R7)/(R5+R7)-(△R2+△R4)/(R2+R4)-(△R6+△R8)/(R6+R8))/4
The resistance values of the strain gauges are generally equal, i.e., R1, R2, R3, R4, R5, R6, R7, R8 △ UOutput of/UInput device＝((△R1+△R3)+(△R5+△R7)-(△R2+△R4)-(△R6+△R8))/8R
In general, under the condition that a single strain gauge is stressed and strained, the change rate of the resistance value of the single strain gauge and the strain quantity of the strain gauge have the following relational equation:
△R/R＝K
where K is a sensitivity coefficient of the strain gauge, which is an inherent constant of a material of the strain gauge body, and is generally equal to 2 (dimensionless), R is a resistance value (ohm) of the strain gauge, △ R is a resistance variation (ohm) of the strain gauge, and is a strain amount (dimensionless) at a position where the strain gauge is attached.
The output electrical signal of the bridge (i.e. the variation △ U of the bridge output voltage)Output of) The rate of change with respect to the input excitation voltage is calculated by the following equation:
△Uoutput of/UInput device＝K((1+3+5+7)-(2+4+6+8))/8。
The strain gauge signal detection and conversion technology is the prior art and is not described in detail.
Further, the spokes of the present invention may be of the same width structure as shown in fig. 7, i.e., the width of the connection between the spokes and the outer ring of the sensor is equal to the width of the connection between the spokes and the inner ring of the sensor. Or the spokes can be in a non-uniform width structure, namely the width of the connecting part of the spoke and the sensor outer ring is not equal to the width of the connecting part of the spoke and the sensor inner ring, for example, the width of the connecting part of the spoke and the sensor outer ring is larger or smaller than the width of the connecting part of the spoke and the sensor inner ring to form a trapezoidal spoke. The J-J cross-sectional shape of the spokes is rectangular or square as shown in fig. 9.
The bonding form of the strain gauge is shown in fig. 10, and the included angle between the central axis of the strain gauge and the horizontal line of the lateral surface of the spoke is 45 degrees.
Further, when the braking torque detected by the sensor does not meet the specification, the opening gap needs to be adjusted. The adjustment in gap of opening the floodgate can let the brake shoe leave the brake disc back at intelligence floodgate switching-off, and adjusting nut realizes through the screw thread relative position of rotation regulation adjusting nut and shell body coupling when being in not hard up unstressed state, specifically does: the special adjusting spanner frame is used for pulling the adjusting nut to rotate, the forward adjusting clearance is reduced, and the backward adjusting clearance is increased. After the brake shoe clearance is adjusted to be small, the brake positive pressure can be increased when the intelligent brake is switched on, and after the brake shoe clearance is adjusted to be large, the brake positive pressure can be reduced when the intelligent brake is switched on.
Intelligence floodgate arrange quantity on lifting machine system arresting gear look lifting load and confirm for the calculation foundation, the intelligence floodgate should be the symmetry and arrange in pairs on floodgate seat two sides, as shown in fig. 1. The utility model discloses intelligence floodgate sensor is forged by a whole steel and is beaten, rough machining, heat treatment, finish machining, wire-electrode cutting, electroplate, polish, circuit arrangement back formation finished product. The amplification circuit of the sensor can be mounted in the space between two adjacent spokes, which space needs to be formed by a cutting process. The sensor signal wires pass through the space between the sensor spokes and finally penetrate out of the rear side face of the sensor.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any person skilled in the art can make some changes or modifications to equivalent embodiments by utilizing the above disclosed technical contents without departing from the technical scope of the present invention, but all those simple modifications, equivalent changes and modifications made to the above embodiments by the technical spirit of the present invention still fall within the technical scope of the present invention.
Claims (4)
1. An open oil cylinder sensing intelligent brake for a lifter comprises an outer shell fixed on an intelligent brake seat, a cylinder arranged in the outer shell and connected with the outer shell in a sliding manner, a brake shoe pressing strip fastened with the cylinder through a compression screw, a brake shoe arranged in front of the brake shoe pressing strip, and an adjusting nut in threaded connection with the tail of the outer shell The supporting sleeve, the piston, the cylinder middle shaft and the cylinder are connected into a whole; the periphery of a middle shaft of the barrel is provided with a disc spring, the tail part of the disc spring is provided with a disc spring pad, an intelligent brake sensor is arranged on the periphery of one end, in contact with the disc spring pad, of an open type intelligent brake oil cylinder and fixed between the open type intelligent brake oil cylinder and the oil cylinder, the open type intelligent brake oil cylinder and the sensor are both in contact with the disc spring pad after the sensor is arranged in place, and the sensor, the oil cylinder and an adjusting nut are in sliding contact;
the sensor comprises an outer ring and an inner ring, a plurality of sensing spokes are uniformly distributed between the outer ring and the inner ring, a space is arranged between every two adjacent spokes, a strain gauge is pasted on the side surface of each spoke to serve as a sensitive stressed electronic device to form a stress sensitive area, the side surface of the sensor, which is contacted with the disc spring pad, is defined as a front side surface, the opposite side surface of the sensor is a rear side surface, the distance t3 between a first interface of the rear side surface of the sensor and a first interface of the front side surface of the oil cylinder is 0.1-3.0mm, and the sensing spokes are not contacted with the oil cylinder; the inner wall of the inner circular ring of the sensor, the second interface of the rear side surface of the sensor and the third interface of the rear side surface of the sensor are in close contact with the oil cylinder.
2. The intelligent open cylinder sensing brake for the elevator as claimed in claim 1, wherein when the elevator is closed, the brake shoe is tightly attached to the brake disc to apply a positive braking pressure to the brake disc, and simultaneously a reaction force of the brake shoe to the positive braking pressure of the brake disc is transmitted to the load bearing surface of the sensor through the sensing spokes to reach the force load bearing interface and is resisted by the adjusting nut, and the force sensing area of the sensor is sensed and detects the positive braking pressure when the elevator is closed.
3. The intelligent open cylinder sensing brake for the elevator as claimed in claim 1, wherein the distance between the end of the piston close to the cylinder cover and the inner wall of the cylinder cover is t1, t1 is greater than 0; the distance t2 between one end of the tension bolt close to the oil cylinder cover and the end cover of the oil cylinder cover, and t2 is larger than or equal to t 1.
4. The open cylinder sensing intelligent brake for the elevator as claimed in claim 1, wherein the number of sensing spokes evenly distributed between the outer ring and the inner ring of the sensor is 4, 8 or 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922244426.2U CN211175139U (en) | 2019-12-13 | 2019-12-13 | Open oil cylinder sensing intelligent brake for hoister |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922244426.2U CN211175139U (en) | 2019-12-13 | 2019-12-13 | Open oil cylinder sensing intelligent brake for hoister |
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| CN211175139U true CN211175139U (en) | 2020-08-04 |
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| CN201922244426.2U Active CN211175139U (en) | 2019-12-13 | 2019-12-13 | Open oil cylinder sensing intelligent brake for hoister |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963468A (en) * | 2021-04-20 | 2021-06-15 | 徐州大恒测控技术有限公司 | Disc brake for monitoring positive braking pressure and monitoring method thereof |
| CN114314408A (en) * | 2021-12-31 | 2022-04-12 | 洛阳宏信重型机械有限公司 | Cylinder sensing intelligent gate for hoister |
| CN114643822A (en) * | 2022-04-08 | 2022-06-21 | 徐州徐工矿业机械有限公司 | Rubber damping device with pressure monitoring function, monitoring method and engineering vehicle |
-
2019
- 2019-12-13 CN CN201922244426.2U patent/CN211175139U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963468A (en) * | 2021-04-20 | 2021-06-15 | 徐州大恒测控技术有限公司 | Disc brake for monitoring positive braking pressure and monitoring method thereof |
| CN112963468B (en) * | 2021-04-20 | 2024-03-22 | 徐州大恒测控技术有限公司 | Disc brake for monitoring braking positive pressure and monitoring method thereof |
| CN114314408A (en) * | 2021-12-31 | 2022-04-12 | 洛阳宏信重型机械有限公司 | Cylinder sensing intelligent gate for hoister |
| CN114314408B (en) * | 2021-12-31 | 2024-05-10 | 洛阳宏信重型机械有限公司 | Barrel sensing intelligent brake for elevator |
| CN114643822A (en) * | 2022-04-08 | 2022-06-21 | 徐州徐工矿业机械有限公司 | Rubber damping device with pressure monitoring function, monitoring method and engineering vehicle |
| CN114643822B (en) * | 2022-04-08 | 2024-03-26 | 徐州徐工矿业机械有限公司 | Rubber damping device with pressure monitoring function, monitoring method and engineering vehicle |
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