KR20010048242A - Driving chain breakdown detecting and terminal gear stopping device of moving step - Google Patents

Abstract

PURPOSE: A drive chain break detection and terminal gear stop device is provided to perform the stable mechanical stop of a moving walk system by being engaged and aligned with a terminal gear and to prevent the malfunction of a break detection device of a drive chain caused by damage and vibration. CONSTITUTION: A chain guide(7) presses a drive chain(3) downward with the force of a tension spring. A switch bracket slope and a switch(5) become apart while a catch tip(8) is released of gearing from a terminal gear(2). The terminal gear rotates by the torque of the drive chain during the drive of a moving walk. Even though the drive chain receives vibration from the outside or extends, the shaking of the chain guide is removed to cause the malfunction of the switch and of a catch body to be prevented. The catch body, herein, is prevented by eliminating the shaking of the chain guide since the chain guide keeps pressing the drive chain for maintaining tensile force. If the drive chain is broken, the chain guide springs out and a lever(16) rotates for the slope of a switch bracket(17) to operate the switch for informing a control panel. Through a link connected to the chain guide, the catch body rotates clockwise to enable the catch tip to be meshed with the terminal gear. Thus, collision damage between the terminal gear and the catch tip is avoided.

Description

DRIVING CHAIN BREAKDOWN DETECTING AND TERMINAL GEAR STOPPING DEVICE OF MOVING STEP}

The present invention relates to a drive chain break detection and terminal gear stop device of a moving walkway, in particular to prevent malfunction due to breakage detection of the drive chain and at the same time to eliminate the misalignment caused by the engagement of the terminal gear and the catch when the drive chain breaks The present invention relates to a drive chain break detection and a terminal gear stop device of a moving walkway to ensure the minimization of impact.

In general, the moving walkway (escalator) rotates the terminal gear by the rotational force of the drive chain, and moves the step by the rotational drive of the terminal gear.

At this time, in order to stabilize the moving walkway system according to the breakage of the drive chain, a detection device for electrically detecting the break detection of the drive chain and a device for mechanically stopping the terminal gear in conjunction with the detection device.

The prior art has a chain guide placed on the drive chain to detect breakage of the chain, interlocked operation during chain rotation (which occurs during chain breakage), and a switch to notify the control panel of the drive chain breakage, and the terminal gear It consists of a catch.

Therefore, the terminal gear for rotating the step for guiding the passenger is driven by the drive chain, and when the drive chain is broken, the switching bracket inclination located at the rear end of the lever connected to the chain guide side activates the switch to break the drive chain 3. At the same time as notifying the control panel, the catch is rotated to engage the teeth of the terminal gear to mechanically stop the rotation of the moving walkway.

As described above, in the conventional apparatus for detecting breakage of a driving body that stops the rotation of the moving walk when the step of guiding the passenger of the moving walk, the terminal gear for rotating the step, and the drive chain driving the terminal gear are broken,

First, by ignoring the alignment of the catch with the terminal gear teeth and engaging the terminal gear, a large shock is generated throughout the system, which may damage passengers' anxiety and damage to the system.

Second, when the drive chain is excessively extended, the detection switch is started by a large vibration of the drive chain during the moving walk or during the movement. There is a possibility of inconsistency and system instability.

The present invention is to solve the problems of the prior art as described above, when the breakage of the terminal drive chain is moved to the self-aligning function of the self-aligning function with the terminal gear to ensure a stable mechanical interruption of the moving walkway system and at the same time the chain tension device It is an object of the present invention to provide a break detection and terminal gear stop device of the drive chain of the moving walkway to prevent the malfunction of the break detection device of the drive chain due to the breakage and vibration of the chain.

Specific means of the present invention for achieving the above object,

In the step of guiding a passenger of a moving walk, a terminal gear for rotating the step, and a break detection device which is a drive body for stopping the operation of the moving walk by detecting the break of the drive chain driving the terminal gear,

A tension device for pressing a drive chain with a predetermined elastic force on the drive chain (3),

A chain guide (7) in contact with the drive chain;

A tension spring (11) embedded in the chain guide (7);

An adjusting bolt 14 for adjusting the pressing force of the tension spring 11;

A plunger (13) interposed between the adjusting bolt (14) and the tension spring (11);

As a stop device for stopping the rotation of the terminal gear (2) in conjunction with the chain guide (7) when the drive chain (3) is broken,

A catch body (9) disposed close to the terminal gear (2) and rotatably installed;

A link (20) connecting the catch body (9) and the chain guide (7);

The catch body (9) has a catch tip (8) slidingly coupled to be movable in parallel on the axis of rotation of the catch body;

It characterized in that it comprises a catch tip adjusting means 100 for automatically engaging the catch tip (8) when engaging the catch tip (8) and the terminal gear (2) to engage the alignment.

1 is an installation state diagram of the drive chain break detection and the terminal gear stop device according to an embodiment of the present invention,

2 is a configuration diagram of a tension device applied to an embodiment of the present invention,

3 and 4 is a front view and one side view of the catch tip adjustment means applied to the embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

2: terminal gear 3: drive chain

5: switch 7: chain guide

8: catch tip 9: catch body

11: tension spring 12: spring holder

13: plunger 14: adjusting bolt

102: catch body fixing bolt 104: rod

106: compression spring 108: catch tip fixing bolt

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an installation state diagram of the drive chain break detection and the terminal gear stop device according to an embodiment of the present invention, Figure 2 is a configuration diagram of a tension device applied to an embodiment of the present invention, Figures 3 and 4 Front and one side view of the catch tip adjusting means applied to the embodiment of the.

Reference numeral 2 denotes a terminal gear, which drives a step (not shown) for guiding a passenger of the moving walk.

The terminal gear 2 is connected to the reducer output sprocket 1 via the drive chain 3, and a tension device for tensioning the drive chain 3 is arranged on the drive chain 3.

As shown in FIG. 2, the tension device is in contact with the upper surface of the drive chain 3 and has a spring holder 12 at its upper end, and a spring guide 12 of the chain guide 7. The tension spring 11, the adjustment bolt 14 for adjusting the pressing force of the tension spring 11, and one end is interposed between the adjustment bolt 14 and the tension spring 11 And a plunger (13) inserted into (12) to contact the tension spring (11) and the other end to contact the tip of the adjustment bolt (14).

Accordingly, the reaction force of the tension spring 11 is adjusted according to the tension adjustment of the adjusting bolt 14, and the chain guide 7 is pushed toward the driving chain 3 by the pressing force of the tension spring 11 generated by the reaction force. The chain 3 is to be tensioned.

A switch 5 for detecting breakage of the drive chain 3 is disposed at the side of the chain guide 7, and the switch 5 is provided at a lever 16 connected to the chain guide 7. The inclined portion of the bracket 17 is electrically operated.

That is, when the drive chain 3 is broken in the state as shown in FIG. 1, the chain guide 7 jumps downward by the elastic force of the tension spring 11, and simultaneously moves to the chain guide 7. The inclined portion of the switch bracket 17 is electrically operated by the switch 17 by the rotation operation of the connected lever 16 so that the break detection is performed and sent to the control panel, not shown.

On the other hand, the present invention is provided with a terminal gear stop device 100 in conjunction with the protruding operation of the chain guide (7) to mechanically stop the terminal gear (2) when the drive chain (3) is broken.

The terminal gear stop device 100 includes a catch body 9 disposed close to the terminal gear 2 and rotatably installed, and a link 20 connecting the catch body 9 and the chain guide 7 to each other. ), And the catch body (9) has a catch tip (8) coupled to the sliding groove (9a) of the catch body (9) to be movable in parallel on the axis of rotation of the catch body, the catch tip (8) and the And a catch tip centering means (100) for automatically engaging the catch tip (8) when engaging the terminal gear (2) to enable the alignment of the catch, and the catch tip (8) includes the terminal gear (2). A tapered surface 8a is provided to generate a normal force upon engagement with the.

Here, the catch tip center adjusting means 100, the catch body fixing bolt 102 fixed to the catch tip body 9 side, and the rod 104 is inserted into the catch body fixing bolt 102, one end is inserted through Compression springs 106 interposed in the catch body fixing bolts 102 and the other end of the rods 104 are inserted therethrough so as to elastically support both sides of the rod 104, and are screwed to the catch tip 8. The catch tip fixing bolt 108 and the catch tip fixing bolt 108 is screwed to include a fixing nut 110 for fixing the rod (104).

Accordingly, when the catch tip 8 is slid by the catch body 9 side, the catch tip fixing bolt 108 and the rod 104 receive the reaction force of the compression spring 106 at the catch body fixing bolt 102 side. .

The operating state of the embodiment thus constructed will be described.

First, the chain guide 7 in Figure 1 is pressing the drive chain (3) downward by the force of the tension spring (11). At this time, the inclined portion of the switch bracket 17 and the switch 5 are separated from each other, and the catch tip 8 is also in a state in which engagement is released from the terminal gear 2.

Accordingly, the terminal gear 2 is rotated by the rotational force of the drive chain 3 when driving the moving walkway (escalator).

At this time, even if the drive chain (3) is subjected to vibration or increase from the outside, the chain guide (7) by pressing the drive chain (3) by the tension spring (11) to maintain the tension force to eliminate the shaking of the chain guide (7) As a result, malfunction of the switch 5 and excessive malfunction of the catch body 9 are prevented.

On the other hand, looks at the case in which the drive chain (3) is broken in this normal driving state.

When the drive chain 3 is broken, the chain guide 7 holding the drive chain 3 pops out, and the lever 16 rotates by this operation so that the inclined portion of the switch bracket 17 opens the switch 5. The catch body 9 is rotated clockwise in FIG. 1 through a link () connected to the chain guide 7, and the catch tip 8 of the catch body 9 side is connected to the terminal gear ( 2) is engaged.

At this time, if the alignment between the terminal gear 2 and the catch tip 8 does not match, when the front tapered surface 8a of the catch tip 9 approaches the tapered surface of the terminal gear 2, The normal force acts on the tapered portion by the error so that the catch tip 8 is accurately fitted to the center of the terminal gear 2 along the sliding groove of the catch body 9 and engaged.

Here, when the catch tip 8 slides, the spring 106 in the catching body 9 side fixing bolt 102 acts as a buffer.

Accordingly, collision damage between the terminal gear 2 and the catch tip 8 due to misalignment is prevented.

As described above, according to the present invention, it is possible to prevent a malfunction of the switch for breaking detection by adding a tension device for pressing the terminal gear with a constant force to the drive chain for driving the terminal gear and preventing the catch guide from large shaking.

In addition, it is possible to secure the safety of riders as well as the system by minimizing the impact of mechanical stop of the moving walkway system by automatically adjusting the misalignment when the catch body is engaged with the terminal gear.

Claims (3)

In the step of guiding a passenger of a moving walk, a terminal gear for rotating the step, and a break detection device which is a drive body for stopping the operation of the moving walk by detecting the break of the drive chain driving the terminal gear, A tension device for pressing a drive chain with a predetermined elastic force on the drive chain (3), A chain guide (7) in contact with the drive chain; A tension spring (11) embedded in the chain guide (7); An adjusting bolt 14 for adjusting the pressing force of the tension spring 11; A plunger (13) interposed between the adjusting bolt (14) and the tension spring (11); As a stop device for stopping the rotation of the terminal gear (2) in conjunction with the chain guide (7) when the drive chain (3) is broken, A catch body (9) disposed close to the terminal gear (2) and rotatably installed; A link (20) connecting the catch body (9) and the chain guide (7); The catch body (9) has a catch tip (8) slidingly coupled to be movable in parallel on the axis of rotation of the catch body; When the catch tip 8 and the terminal gear 2 is engaged with the drive chain of the moving walkway, characterized in that the catch tip adjusting means 100 to automatically move the catch tip 8 to enable alignment Break detection device. The method of claim 1, wherein the catch tip adjustment means 100 A catch body fixing bolt 102 fixed to the catch tip body 9 side; A rod 104 having one end inserted into the catch body fixing bolt 102; A compression spring (106) interposed in the catch body fixing bolt (102) to elastically support both sides of the rod (104); A catch tip fixing bolt 108 inserted into the other end of the rod 104 and screwed to the catch tip 8; Drive catch failure detection device of the moving walkway, characterized in that it comprises a fixing nut 110 for fixing the rod 104 is screwed to the catch tip fixing bolt (108). The method of claim 1, The catch tip (8) is broken drive detection device of the moving walkway, characterized in that the tapered processing surface (8a) is formed so as to generate a normal force when engaged with the terminal gear (2).