KR20110007696A - Apparatus for testing braking force - Google Patents

Abstract

PURPOSE: An apparatus for testing braking force is provided to improve stability and facilitate test process and to reduce braking performance test costs. CONSTITUTION: An apparatus for testing braking force comprises a drive unit(110), a test unit(120), a winding machine(140), and a controller. The drive unit generates the power. The test unit is driven by the drive unit. The winding machine engages with the test unit. The controller controls the operation of the winding machine in order to generate the braking power in the winding machine. The test unit comprises a sheave part and a rope part(150) driven by the drive unit.

Description

Braking performance tester {APPARATUS FOR TESTING BRAKING FORCE}

The present invention relates to a braking performance test apparatus, and more particularly, to a braking performance test apparatus for testing the braking performance of the hoist.

In general, elevator cars that go up and down through elevator passages in a building are suspended on one end of a hoist rope supported by a hoist, and the other end of the hoist rope is generally connected with a balance weight having a weight that is heavier than the weight of the elevator car. have.

The rollers protruding from the elevator car are coupled to the vertical rail fixedly installed in the elevator passage, whereby the elevator car is not shaken in the horizontal direction by the guide action of the rollers while the elevator car moves up and down.

The elevator car is lifted or stopped by the operation of the hoisting machine. The elevator is directly installed in the test tower for the performance test of the hoisting machine, and the performance test is performed by the free fall of the elevator.

According to the performance test according to the prior art, because the test tower must be used to test the performance of the elevator hoisting machine, there is a problem that the investment cost is high.

In addition, there is a risk of car breakage or fall due to abnormal braking function of the hoisting machine during the test.

In addition, when the test is to exceed the speed limit, the height of the tower itself must be increased so that the test of various conditions cannot be performed, and a lot of test personnel have a problem.

Therefore, there is a need for improvement.

The present invention has been made by the necessity as described above, and an object of the present invention is to provide a braking performance test device that significantly reduces the investment cost of braking performance test, secures stability, and facilitates test execution.

The braking performance test apparatus according to the present invention controls the braking performance by controlling the operation of the hoist to generate a braking force to a driving unit for generating power, a test unit driven by the driving unit, a hoist and a hoist operated in conjunction with the test unit. And a control unit for testing.

In addition, the test unit is characterized in that it comprises a sheave portion driven by the drive unit and a rope unit is operated in conjunction with the sheave portion.

In addition, the sheave portion is characterized in that it comprises a drive sheave driven by the drive unit.

The driving unit may include a first driving unit and a second driving unit that are independently operated, and the driving sheaves may be spaced apart from each other, and the second driving unit may be driven by the first driving sheave and the second driving unit driven by the first driving unit. It characterized in that it comprises a sheave.

In addition, the second driving unit is characterized in that provided in the hoist or spaced apart from the hoist.

In addition, the sheave portion is characterized in that it further comprises a driven sheave receiving the driving force of the drive sheave by the rope portion.

In addition, the test unit is characterized in that it comprises a tension control unit for controlling the tension of the rope by controlling the sheave portion.

In addition, the tension control unit is characterized in that for adjusting the tension by controlling the driven sheave.

In addition, the tension control unit is characterized in that it comprises a screw jack for adjusting the height of the driven sheave.

In addition, the tension control unit is characterized in that it comprises a load cell for measuring the tension applied to the rope portion.

In addition, the control unit is characterized in that for controlling the driving force transmitted to the sheave portion to adjust the specified load applied to the rope portion.

In addition, the control unit measures the braking performance of the braking device by measuring at least one of the torque or speed of the drive unit, the braking time or the braking distance of the rope unit braked by the braking device.

The rope part may include at least one of an endless wire, a belt, and a chain.

As described above, the braking performance test apparatus according to the present invention, unlike the conventional invention, by using the rope moving at the braking induction speed by the rotation of the drive sheaves spaced apart without testing in an expensive elevator test tower, The cost is significantly reduced, and the test tower has the advantage of excluding the risks involved during the test.

In addition, in the case of the test tower, the weight of the counting weight and the car side should be adjusted in order to adjust the load, but the present invention is possible only by adjusting the load of the driving unit, and also by controlling the speed of the driving unit and measuring the rated speed. This has the advantage of being easy.

In addition, in the case of a test tower, an average of 5 or more people is required to carry out tests, such as CP operation, main brake operation, car side measurement, and load control, whereas the present invention has the advantage of greatly reducing the number of test personnel.

Hereinafter, an embodiment of a braking performance test apparatus according to the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout the specification.

1 is a perspective view of a braking performance test apparatus according to an embodiment of the present invention, Figure 2 is a side view of a braking performance test apparatus according to an embodiment of the present invention, Figure 3 is a braking according to an embodiment of the present invention 4 is a plan view of a performance test apparatus, FIG. 4 is a front view showing a driving direction of an overspeed increase test of a braking test apparatus according to an embodiment of the present invention, and FIG. 6 is a block diagram showing a braking performance test apparatus according to an embodiment of the present invention, FIG. 7 is a perspective view of a braking test apparatus according to another embodiment of the present invention, and FIG. 8. Is a perspective view of a disk type braking test apparatus according to another embodiment of the present invention.

As illustrated, the braking performance test apparatus 100 according to an embodiment of the present invention operates in conjunction with a driving unit 110 for generating power, a test unit 120 driven by the driving unit 110, and a test unit. It includes a controller 180 for testing the braking performance by controlling the operation of the braking device 145 to generate a braking force to the hoist 140 and the test unit 120.

The driver 110 includes a vector inverter, a motor, and a speed reducer. The driving unit 110 is fixed by the support bracket 119 on the base 105, spaced apart in parallel to each other. That is, the driving unit 110 includes a first driving unit 111 and a second driving unit 115 that are independently operated.

In this case, as shown in FIG. 1, the driving unit 110 includes a first driving unit 111 and a second driving unit 115, and the first driving unit 111 includes the first body driving unit 112. The second driving unit 115 includes at least one of the second main body driving unit 117 and the hoisting unit 118 integrally provided with the hoisting machine 140.

The hoist 140 includes a hoist driver 118 and a braking device 145.

The brake device 145 includes a drum brake or a disk brake and brakes the driving force by the friction force of the brake pad.

That is, the first body driving unit 112 and the second body driving unit 117 are disposed on the upper portion of the base 105 in parallel to each other, the second body driving unit 117 on the front side of the second body driving unit 117. ) And a hoisting drive unit 118 connected to the shaft.

This is a configuration in which the second body driving unit 117 and the hoisting machine driving unit 118, which are the second driving unit 115, may be selectively used, and may provide driving force to the test unit 120 using the hoisting machine driving unit 118 as a driving source. In addition, the driving force may be provided to the test unit 120 using the second body driving unit 117 as a driving source.

At this time, the second main body driving unit 117 or the hoisting machine driving unit 118, which is not adopted as the driving source, is freely rotated by the relative driving source by being connected to each other.

In addition, the hoisting machine 140 having the hoisting machine driving part 118 is detachable from the base 105 and is replaced with another hoisting machine.

Meanwhile, as another embodiment, as shown in FIG. 7, the driving unit 110 includes a first driving unit 111 and a second driving unit 215, and the first driving unit 111 is the first driving unit as in the exemplary embodiment. The body driving unit 112, the second driving unit 215 removes the second main body driving unit 117 of one embodiment, and detaching the hoisting machine 140 having the hoisting machine driving unit 218 in place of the second main body driving unit 117. Thus, the hoisting machine driver 218 may be used as a driving source.

The test part 120 includes a sheave part 125 driven by the driving part 110 and a rope part 150 which is operated in conjunction with the sheave part 125.

The sheave unit 125 includes a driving sheave 130 driven by the driving unit 110. The driving sheave 130 is spaced apart from each other on the base 105 like the driving unit 110 and is connected to the first driving unit 111 and the first driving sheave 132 and the second driving units 115 and 215. And a second driving sheave 134 driven in axial connection. The first drive sheave 132 and the second drive sheave 134 is fixed to the upper portion of the base 105 by a fixing bracket 135.

That is, in one embodiment, the second driving sheave 134 is provided between the second main body driving part 117 and the hoisting machine driving part 118, and is axially coupled to the second main body driving part 117 or the hoisting machine driving part 118. It is rotated by the driving force.

In addition, in another embodiment, the second main body driving unit 117 is removed, and the hoisting machine 140 having the hoisting machine driving unit 218 is provided therein and rotated by the driving force of the hoisting machine driving unit 218.

The sheave part 125 further includes a driven sheave 137 that receives the driving force of the driving sheave 130 by the rope part 150. The driven sheave 137 is provided above the center of the first driving sheave 132 and the second driving sheave 134 is connected by the rope unit 150 receives the driving force. By the driven sheave 137, the rope unit 150 forms a triangular shape, and when the driving unit 110 is operated, the respective sheaves 130 and 137 rotate, and the rope unit 150 connected thereto moves along the constrained region. In addition, it is preferable that seating grooves are formed in each of the sheaves 130 and 137 so that the rope part 150 is seated.

In this case, at least one of the shafts connecting the first driving unit 111, the first driving sheave 132, the second driving units 115 and 215, and the second driving sheave 134 is provided with a sensor unit 160. The speed and torque values of the driving unit 110 are measured by the 160, and the measured speed and torque values are transmitted to the controller 180. In addition, the rotation speed measured by measuring the rotation speed of the driving sheave 130 in the sensor unit 160 is transmitted to the controller 180.

The test unit 120 further includes a tension control unit 170 for controlling the tension of the rope unit 150 by controlling the operation of the sheave unit 125. The tension adjusting unit 170 adjusts the tension by controlling the driven sheave 137, and includes a screw jack 172 provided below the driven sheave 137 to adjust the height of the driven sheave 137. The tension adjusting unit 170 includes a load cell 176 to adjust the height of the driven sheave 137 by the screw jack 172, and to measure the tension applied to the rope unit 150 by height adjustment. Therefore, the tension adjusting unit 170 is driven by the driven sheave 137 by the screw jack 172, the height is adjusted, the tension applied to the rope unit 150 in accordance with the change of the height by the load cell 176 Is measured. That is, the screw jack 172 is connected to the lifting motor 174 to raise and lower the screw jack 172 by the driving force of the lifting motor 174, between the driven sheave 137 and the screw jack 172. The tension of the rope part 150 wound around the sheave part 125 by the provided load cell 176 is measured. This is to give a certain tension to the rope unit 150 to prevent the rope unit 150 from slipping in each sheave (130,137), thereby enabling a more accurate test.

The controller 180 measures the braking performance of the braking device 145 by measuring at least one of a torque or a speed of the driving unit 110 and a braking time or a braking distance of the rope unit 150 braked by the braking device 145. Test

Torque and speed of the drive unit 110 is made by the measurement of the sensor unit 160, the braking time or braking distance of the rope unit 150 is measured by the sensor unit 160 after braking of the braking device 145, The rotation speed of the sheave 130 and the timer of the controller 180 are measured.

The rope unit 150 may include at least one of an endless wire, a belt, and a chain.

Hereinafter, look at the operation of the braking performance test apparatus according to an embodiment of the present invention.

First, the hoist 140 to be tested is mounted.

In the mounting of the hoisting machine 140, as shown in FIG. 1, in the exemplary embodiment, the base 105 includes a first body driving unit 112 and a second body driving unit 117 spaced apart from each other. The first body driving unit 112 and the second body driving unit 117 of the first driving sheave 132 and the second driving sheave 134 is connected, the front side of the second driving sheave 134, the hoisting machine 140 Is connected to the shaft.

The hoist 140 is composed of a hoisting machine 118 and a braking device 145, and the above-described configuration may selectively use the second main body 117 and the hoisting machine 118, which are the second driving parts 115. In this configuration, the driving force may be provided to the second drive sheave 134 using the hoisting machine driving part 118 as the driving source, and the driving force may be provided to the second driving sheave 134 using the second body driving part 117 as the driving source. You may.

At this time, the second body driving unit 117 or the hoisting machine driving unit 118, which is not adopted as the driving source, is axially connected, and is freely rotated by the corresponding driving source.

And, the hoist 140 is detachable from the base, the braking method is equipped with a hoist 140 of various standards, such as disk type, drum type to test the performance.

The controller 180 drives the first body driving unit 112 and the second body driving unit 117 or the first body driving unit 112 and the hoisting machine driving unit 118 to set the specified torque (specified load) and the designated speed. .

At this time, before setting the specified load, by lifting the driven sheave 137 by the tension control unit 170 to adjust the tension of the rope unit 150. This is because the screw jack 172 is moved up and down by the driving of the lifting motor 174 to adjust the height of the driven sheave 137, by the load cell 176 formed in the lower portion of the driven sheave 137 in accordance with the height change You can check whether the set tension is reached.

Since the rope part 150 is maintained at the set tension, it is possible to prevent the rope part 150 from slipping on the sheaves 130 and 137 when the driving part 110 is driven, thereby enabling a more accurate braking test. The rope unit 150 includes at least one of an endless wire, a belt, and a chain fastened to a sprocket.

Subsequently, when the specified load is set, the controller 180 applies the signal to operate the first and second driving units 111 and 115 to rotate the first and second driving sheaves 132 and 134, and the first and second driving units 111 and 115. The rope portions 150 connected to the first and second driving sheaves 132 and 134 and the driven sheave 137 by the movement of the movement along the area constrained by the respective sheaves (130, 137).

Thereafter, the operation of the braking device 145 is controlled to apply a braking force to the driving of the hoisting machine 140.

It is determined whether the driving sheave 130 reaches the set torque and speed, and when the driving sheave 130 reaches the set torque and the speed, a braking signal is applied to the braking device 145 to brake the driving of the hoist 140.

At least one of the driving unit 110 and the driving sheave 130, that is, the first driving unit 111 and the first driving sheave 132 on the shaft or the second driving unit 115 and the second driving sheave 134 on the shaft. It may be determined whether the torque and the speed set by the sensor unit 160 are reached.

In the sensor unit 160, when the driving sheave 130 applies a signal reaching the set torque and speed to the controller 180, the controller 180 applies a brake signal to the brake device 145 to drive the hoisting machine 140. To brake.

After that, the braking time of the braking of the rope unit 150 after the braking operation of the braking device 145 is completed, and the rope unit 150 through the rotation speed of the driving sheave 130 measured by the sensor unit 160 after the braking operation. The braking distance of the braking device 140 and the braking device 140 of the braking device 145 are measured by calculating the braking distance and the like, calculated by the controller 180 together with the speed and torque of the driving sheave 130.

Meanwhile, two test runs are possible depending on the driving directions of the first and second driving units 111 and 115.

It is possible to carry out an overspeed ascending test in which the speed of the car rises in the upward direction due to a failure of the elevator control system, and an opening and closing test in which the car causes uncontrollable operation without the car door completely closed.

First, as shown in FIG. 4, when the overspeed increase of the brake device 145 is tested, the first and second drive sheaves 132 and 134 are driven in the same direction, so that the first and second drive sheaves 132 and 134 are designated speeds. When it reaches, it is possible by operating the brake device 145 of the hoisting machine.

In addition, as shown in FIG. 5, when the opening and closing of the brake device 145 is tested, any one of the first and second driving parts 111 and 115 is rotated after the first and second driving sheaves 132 and 134 are rotated in different directions. It can be tested by stopping the operation of the brake unit 145 of the hoisting machine 140 at the same time.

Therefore, the braking performance of the hoisting machine 140 and the braking device 145 may be tested by the above method to provide a hoisting machine 140 capable of protecting the elevator passenger from being injured.

On the other hand, as shown in Figure 7 as another embodiment according to the present invention, by removing the second body driving unit 117, the detachment of the hoisting machine 140 in the position of the second body driving unit 117 of the hoisting machine 140 The braking performance of the hoisting machine 140 may be tested by using the hoisting machine 218 as a driving source of the second driving unit 215.

In addition, as illustrated in FIG. 8, the braking method of the hoist 140 may be a disk type.

Operation according to another embodiment is the same as the embodiment of the present invention, the detailed description is replaced by the above.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art to which the art belongs can make various modifications and other equivalent embodiments therefrom. I will understand.

Therefore, the true technical protection scope of the present invention will be defined by the claims.

1 is a perspective view of a braking performance test apparatus according to an embodiment of the present invention,

Figure 2 is a side view of the braking performance test apparatus according to an embodiment of the present invention,

3 is a plan view of a braking performance tester according to an embodiment of the present invention;

Figure 4 is a front view shown in the driving direction of the overspeed increase test of the braking test apparatus according to an embodiment of the present invention,

5 is a front view showing the driving direction of the opening step test of the braking test apparatus according to an embodiment of the present invention,

Figure 6 is a block diagram showing a braking performance test apparatus according to an embodiment of the present invention,

7 is a perspective view of a drum type braking test apparatus according to another embodiment of the present invention;

8 is a perspective view of a disk type braking test apparatus according to another embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

100: braking performance tester 105: base

110: driving unit 111: first driving unit

112: first body drive unit 115, 215: second drive unit

117: second body driving unit 118, 218: hoisting machine driving unit

119: support bracket 120: test part

130: driving sheave 132: first driving sheave

134: second drive sheave 135: fixed bracket

137: driven sheave 140: hoist

145: braking device 150: rope

160: sensor unit 170: tension control unit

172: screw jack 174: lifting motor

176: load cell 180: control unit

Claims (14)

A driving unit generating power; A test unit driven by the driving unit; A hoist which operates in conjunction with the test unit; And And a controller configured to test the braking performance by controlling an operation of the hoist to generate a braking force on the hoist. The method of claim 1, The test unit is a sheave unit driven by the drive unit; And Braking performance test apparatus characterized in that it comprises a rope portion which is operated in conjunction with the sheave portion. 3. The method of claim 2, The sheave portion braking performance test apparatus characterized in that it comprises a drive sheave driven by the drive unit. The method of claim 3, wherein The driving part includes a first driving part and a second driving part operated independently; The driving sheaves are spaced apart from each other, and the braking performance test apparatus comprising a first driving sheave driven by the first driving unit and a second driving sheave driven by the second driving unit. The method of claim 4, wherein The second driving part is provided on the hoisting machine or the braking performance test apparatus, characterized in that installed in the spaced apart. The method of claim 3, wherein The sheave portion braking performance test apparatus further comprises a driven sheave receiving the driving force of the drive sheave by the rope portion. The method of claim 6, The test unit is a braking performance test device comprising a tension control unit for controlling the tension of the rope by controlling the sheave portion. The method of claim 7, wherein The tension control unit is braking performance test device, characterized in that for adjusting the tension by controlling the driven sheave. The method of claim 8, The tension control unit is braking performance test device, characterized in that it comprises a screw jack for adjusting the height of the driven sheave. The method of claim 7, wherein The tension adjusting unit includes a load cell for measuring a tension applied to the rope unit. 3. The method of claim 2, The control unit controls the driving force transmitted to the sheave portion braking performance test apparatus, characterized in that for adjusting the specified load applied to the rope portion. The method according to any one of claims 2 to 11, The control unit measures the braking performance of the braking device by measuring at least one of a torque or a speed of the drive unit, a braking time or a braking distance of the rope unit braked by the braking device. The method according to any one of claims 2 to 11, The hoisting device is a braking performance test apparatus, characterized in that the braking method includes at least one of a disk type, a drum type. The method according to any one of claims 2 to 11, The rope unit, the braking performance test apparatus, characterized in that it comprises at least one of an endless wire, a belt, a chain.

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