JP2011219234A - Driving device of elevator governor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a driving device of an elevator governor for easily conducting an operation test of the elevator governor and suppressing cost required for the operation test of the elevator governor to be inexpensive.SOLUTION: The driving device 9 of the elevator governor 11 includes a pulley 12 to which a governor rope 13 is wound, is used in a case of the operation test of the elevator governor 11 for detecting an overspeed state of a car based on rotation speed of the pulley 12 and rotationally drives the pulley 12 during the operation test. The driving device 9 includes one roller body 1 having a cylindrical portion 1a where a fitting groove 3 is formed on an outer peripheral face 1A, an electric drill 19 which rotationally drives the roller body 1 and an elastic ring 2 which is installed in the fitting groove 3 of the roller body 1, transmits torque of the electric drill 19 as that for rotating the pulley 12 during the operation test and relatively slides on the roller body 1 when a rotary load which is equal to or more than frictional resistance force with the roller body 1 is applied.

Description

  The present invention relates to an elevator governor drive device used for rotationally driving a pulley during an operation test of an elevator governor that detects an overspeed state of a passenger car.

  In general, an elevator is equipped with an elevator governor that detects an overspeed of the car. However, the elevator governor can perform an operation test at the completion of installation and at regular intervals thereafter. Required by law. The operation test of the elevator governor was performed by removing the endless governor rope wound around the pulley of the elevator governor and connected to the emergency stop device from the pulley. In this state, the pulley rotates at a predetermined speed. This is done by confirming the operating state of the elevator governor when it reaches. Therefore, during the operation test of the elevator governor, it is necessary to forcibly drive the pulley with the governor rope removed from the pulley.

  As a conventional technique of this type, a drive device that forcibly drives a pulley by rotating a rubber roller with an electric drill by bringing a conical rubber roller attached to an electric drill into contact with a pulley of an elevator governor. A driving device that includes a multi-stage roller having a plurality of rollers having different outer diameter dimensions, selects a roller corresponding to the outer diameter dimension of the pulley of the elevator governor, and forcibly drives the pulley to rotate by the corresponding roller. Are known.

JP 09-278308 A JP 09-132358 A

  The conventional technique shown in Patent Document 1 including the above-described conical rubber roller performs the operation test of the elevator governor by bringing the conical rubber roller into contact with the pulley, so that the operator who performs the operation test is excellent. It is required to have an operation technique. Therefore, the operation test of this elevator governor tends to be difficult. Moreover, since the prior art shown by patent document 2 is a multistage roller which has a some roller, a weight becomes heavy and handling tends to become complicated. In addition, since the structure is complicated, the manufacturing cost tends to be high. In addition, the prior art disclosed in Patent Documents 1 and 2 is to replace the pulley with a new one because the rotational speed of the pulley decreases when the contact portion with the pulley wears down and the outer diameter of the roller decreases. Is required. In this case, in the prior arts disclosed in Patent Documents 1 and 2, both rollers must be replaced with new ones. For this reason, the maintenance cost for the operation test of the elevator governor tends to be high.

  The present invention has been made from the actual situation in the above-described prior art, and its purpose is to easily perform an operation test of an elevator governor and to reduce the cost required for the operation test of the elevator governor. An object of the present invention is to provide a drive device for an elevator governor.

  In order to achieve the above object, the present invention has a pulley around which a governor rope is wound, and is used during an operation test of an elevator governor that detects an overspeed state of a car based on the rotational speed of the pulley. In an elevator speed governor drive device that rotationally drives the pulley during the operation test, one roller body having a cylindrical portion with a mounting groove formed on an outer peripheral surface, and a rotation driving means that rotationally drives the roller body, When it is mounted in the mounting groove of the roller body and transmits the rotational force of the rotation driving means as a rotational force for rotating the pulley during the operation test, and a rotational load greater than the frictional resistance force with the roller body is applied. An elastic ring that slides relative to the roller body is provided.

  In the operation test of the elevator governor according to the present invention, the elastic ring attached to the mounting groove of the roller body is brought into contact with the pulley in a state where the governor rope is removed from the pulley, and the rotational drive is performed in this state. This is done by driving the means. The roller body and the elastic ring are rotated by driving the rotation driving means, and the pulley can be rotated at a predetermined speed by the rotational force. While the pulley is rotating in this way, when the pulley is about to rotate at a speed exceeding a predetermined speed by driving the rotation driving means, that is, a rotational load greater than the frictional resistance force with the roller body is applied to the elastic ring. When added, the elastic ring slides relative to the roller body, and transmission of the rotational force of the rotational drive means to the pulley is interrupted. Therefore, the pulley can be easily rotated at a predetermined speed without requiring a special operation technique of the operator.

  In addition to the rotation driving means, the present invention is composed of one roller body and an elastic ring attached to the roller body, so that it is relatively light and easy to handle. In addition, manufacturing costs can be reduced.

  Further, according to the present invention, when the elastic ring abutting on the pulley is worn and the outer diameter is reduced, only the worn elastic ring needs to be replaced with a new elastic ring. Therefore, the maintenance cost when replacing with a new one can be reduced.

  That is, the present invention can easily perform an operation test of an elevator governor, and can reduce the cost required for the operation test.

  In the invention, the roller body has an outer diameter smaller than an outer diameter of the cylindrical portion, an attachment shaft attached to the rotation driving means, and the attachment shaft and the cylindrical portion. And a conical portion that enables the diameter of the elastic ring to be enlarged. According to the present invention configured as described above, the elastic ring inserted from the mounting shaft side can be guided by the conical portion so that the diameter is gradually enlarged, and can be mounted in the mounting groove of the cylindrical portion. Therefore, the elastic ring can be easily mounted in the mounting groove of the cylindrical portion of the roller body.

  In the present invention, a hollow portion may be formed in at least the cylindrical portion of the cylindrical portion and the conical portion of the roller body. The present invention configured as described above can realize the weight reduction of the roller body.

  Further, the present invention is the above invention, wherein the cylindrical portion of the roller body is provided with the plurality of mounting grooves to which the plurality of elastic rings can be individually mounted, and is mounted in the mounting grooves. Another elastic ring is mounted in a groove between the adjacent elastic rings. The present invention configured as described above can be used as a multistage roller having a plurality of different outer diameter dimensions.

  The present invention relates to a roller body having a cylindrical portion with a mounting groove formed on the outer peripheral surface, rotation driving means for rotationally driving the roller body, and an operation of an elevator governor mounted in the mounting groove of the roller body. Because the rotation force of the rotation drive means is transmitted as the rotation of the pulley during the test, and an elastic ring that slides relative to the roller body when a rotational load greater than the frictional resistance against the roller body is applied. Thus, the pulley of the elevator governor can be easily rotated at a predetermined speed without requiring a special operation technique of the operator in the operation test of the elevator governor as in the prior art. Moreover, the manufacturing cost and the maintenance cost for replacement at the time of wear can be reduced, and the cost required for the operation test of the elevator governor can be reduced as compared with the conventional case. With these, excellent practicality can be secured.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a main configuration of an embodiment of a drive device for an elevator governor according to the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing a main configuration of an embodiment of a drive device for an elevator governor according to the present invention. It is a side view which shows the roller main body with which this embodiment is equipped. It is a figure in the time of manufacture of this embodiment, and is a figure which shows the process of mounting | wearing a roller main body with an elastic body ring. It is a figure which shows the preparation procedure at the time of the operation test of the elevator governor performed using this embodiment. It is a figure which shows the deformation | transformation aspect of this embodiment at the time of the operation test of an elevator governor. It is a figure which shows the replacement | exchange procedure of the elastic body ring with which this embodiment was equipped.

  Embodiments of an elevator governor drive device according to the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view showing a configuration of a main part of an embodiment of a drive device for an elevator governor according to the present invention, and FIG. 2 shows a configuration of a main part of an embodiment of the drive device for an elevator governor according to the present invention. FIG. 3 is a side view showing a roller main body provided in the present embodiment, and FIG. 4 is a diagram showing a process of mounting an elastic ring on the roller main body in manufacturing the present embodiment.

  The drive device according to the present embodiment has a pulley (not shown) around which a governor rope is wound, and is used for an operation test of an elevator governor (not shown) that detects an overspeed of a car (not shown) based on the rotational speed of the pulley. The pulley is driven to rotate during the operation test.

  As shown in FIGS. 1 and 2, the drive device 9 according to the present embodiment is mounted on one roller body 1, rotation driving means for rotating the roller body 1, for example, an electric drill (not shown), and the roller body 1. The elastic ring 2. The elastic ring 2 is made of an O-ring made of synthetic resin, for example.

  As shown in FIGS. 2 and 3, the roller body 1 includes a cylindrical portion 1a in which a plurality of mounting grooves 3 and 3B in which a plurality of elastic rings 2 are individually mounted on an outer peripheral surface 1A, respectively, and an electric power (not shown). It has an attachment shaft 4 attached to the drill, and a conical portion 5 which is located between the attachment shaft 4 and the cylindrical portion 1a and allows the diameter of the elastic ring 2 to be enlarged. As shown in FIG. 1, the roller body 1 has a hollow portion 1 </ b> B formed inside a cylindrical portion 1 a and a conical portion 5. An electric drill insertion portion 7 having a lock groove 6 which is a portion fixed to an electric drill (not shown) is integrally connected to the mounting shaft 4 described above.

  When the elastic ring 2 is mounted in the mounting grooves 3 and 3B of the roller body 1, the elastic ring 2 is inserted from the electric drill insertion portion 7 and the mounting shaft 4 side as shown in FIG. The inserted elastic body ring 2 is guided by the conical portion 5 while being gradually expanded in diameter by being pushed in the direction of the conical portion 5. Further, when the elastic ring 2 is pushed in, the cylindrical portion 1a is reached in a state where the diameter is enlarged. For example, the first elastic ring 2 is mounted in the most advanced mounting groove 3 formed at a position farthest from the conical portion 5. Thereafter, the other elastic body ring 2 is mounted in the same manner, and the last elastic body ring 2 is mounted in the most distal mounting groove 3B shown in FIG. In this way, as shown in FIGS. 1 and 2, for example, five elastic rings 2 are attached to the cylindrical portion 1a so as to be provided side by side. At this time, a groove 8 is formed between the adjacent elastic rings 2.

  FIG. 5 is a diagram showing a preparation procedure at the time of an operation test of the elevator governor performed using the present embodiment.

  As shown in FIG. 5, in the operation test of the elevator governor 11, first, the governor rope 13 wound around the pulley 12 is pulled up as indicated by an arrow 14, and a gap is formed between the pulley 12 and the governor rope 13. 15 is formed, and the governor rope 13 is removed from the pulley 12 by using the gap 15.

  Next, the worker 16 manually rotates the pulley 12 as indicated by an arrow 17. At this time, as indicated by an arrow 18, if the pulley 12 rotates by inertia, it is confirmed that the pulley 12 is ready for an operation test.

  In this state, the measuring unit of the speed detector 18 is brought into contact with the peripheral end on one side of the pulley 12. Further, the drive device 9 attached to the electric drill 19 is brought close to the other side of the pulley 12, and the elastic ring 2 attached to the roller body 1 is brought into contact with the pulley 12. At this time, depending on the form of the work space around the pulley 12, the elastic ring 2 of the driving device 9 is brought into contact with the side end 20 of the pulley 12, and the elastic ring 2 of the driving device 9 is connected to the pulley 12. Any of the cases of contacting the peripheral end 20A can be selected.

  As described above, the measurement unit of the speed detector 18 is brought into contact with the peripheral end of the pulley 12 on one side of the pulley 12, and the elastic body ring 2 of the driving device 9 is brought into contact with the pulley 12 on the other side of the pulley 12. When the electric drill 19 is driven in this state, the roller body 1 and the elastic ring 2 are rotated, and the pulley 12 can be rotated at a predetermined speed by the rotational force. The rotational speed of the pulley 12 is detected by a speed detector 18. Further, while the pulley 12 is rotated in this manner, when the pulley 12 is about to rotate at a speed exceeding a predetermined speed by driving the electric drill 19, that is, a rotational load greater than the frictional resistance force with the roller body 1. Is applied to the elastic ring 2, the elastic ring 2 slides relative to the roller body 1, and transmission of the rotational force of the electric drill 19 to the pulley 12 is interrupted. Therefore, the rotational speed of the pulley 12 is maintained at a predetermined speed.

  In the operation test of the elevator governor 11, when the operation test is performed such that the elastic ring 2 of the drive device 9 attached to the electric drill 19 is brought into contact with the peripheral end 20 </ b> A of the pulley 12, the pulley The large-diameter portion of 12 is engaged with the groove 8 between the elastic rings 2, and the elastic ring 2 is brought into contact with the peripheral end 20A of the pulley 12, thereby driving in the direction of arrow 21 in FIG. The movement of the device 9 can be prevented. Thereby, stable and highly accurate speed measurement of the pulley 12 can be realized.

  FIG. 6 is a diagram showing a modification of the present embodiment during an operation test of the elevator governor.

  In the operation test of the elevator governor 11 described above, as shown in FIG. 6, the elastic ring 22 located on the conical portion 5 side of the elastic ring 2 attached to the cylindrical portion 1 a of the roller body 1 is provided. , Pushed in the foremost direction, positioned in the groove 23 (corresponding to the groove 8 in FIGS. 1 and 2) formed between the most advanced elastic ring 2 and the elastic ring 2 adjacent to the elastic ring 2 It is good also as an aspect made to do. When the elastic rings 2 and 22 are mounted in this way, the elastic ring to be brought into contact with the pulley 12 is either the elastic ring 2 or the elastic ring 22 depending on the shape of the pulley 12. The preferred one can be selected. That is, it can be utilized as a multistage roller having a plurality of different outer diameter dimensions. Further, if the elastic rings 2 and 22 are selectively brought into contact with the pulley 12 with the rotational force of the electric drill 19 kept constant, for example, the rotational speed of the pulley 12 can be easily adjusted. .

  FIG. 7 is a diagram showing a procedure for replacing a worn elastic ring provided in the present embodiment.

  When the elastic body ring 2A of the elastic body rings 2 that are in contact with the pulley 12 is worn to such an extent that it interferes with the operation test as the operation test of the elevator governor 11 is repeatedly performed, FIG. As shown, the worn elastic ring 2A is removed from the mounting groove 3A of the roller body 1. Next, the plurality of elastic body rings 2B mounted so far are sequentially pushed toward the leading edge. Finally, a new elastic ring 2C is mounted in the mounting groove 3B located on the side closest to the conical portion 5. Thereby, replacement | exchange of the elastic body ring 2 (2A, 2B, 2C) is complete | finished, and the outer diameter of the roller main body 1 part of the drive device 9 can be maintained at a normal dimension.

  According to the drive device 9 according to the present embodiment configured as described above, the pulley 12 is rotated by bringing the elastic ring 2 of the drive device 9 into contact with the pulley 12 of the elevator governor 11 as described above. When the pulley 12 tries to rotate so as to exceed the predetermined speed by driving the electric drill 19, the elastic ring 2 slides with respect to the roller body 1, and thereby the rotational speed of the pulley 12 reaches the predetermined speed. Maintained. Therefore, the pulley 12 can be easily rotated at a predetermined speed without requiring a special operation technique of the operator 16.

  In addition to the electric drill 19, this embodiment is constituted by one roller body 1 and the elastic ring 2 attached to the roller body 1, so that it is relatively light and easy to handle. Further, since the number of members is small, the manufacturing cost can be reduced.

  Further, as described above, when the elastic ring 2 that comes into contact with the pulley 12 is abraded due to repeated operation tests and the outer diameter is reduced, causing trouble in the operation test, It is only necessary to replace the elastic body ring 2 with a new elastic body ring 2. Therefore, the maintenance cost when replacing with a new one can be reduced.

  That is, this embodiment can easily rotate the pulley 12 of the elevator governor 11 at a predetermined speed without requiring a special operation technique of the operator 16 in the operation test of the elevator governor 11. . Moreover, the manufacturing cost and the maintenance cost for replacement at the time of wear can be reduced, and the cost required for the operation test of the elevator governor 11 can be reduced. From these, excellent practicality can be secured.

  Further, in the present embodiment, since the hollow portion 1B is formed in the cylindrical portion 1a and the conical portion 5 of the roller body 1, it is possible to reduce the weight of the roller body 1. Therefore, it becomes easy to handle, a safe driving operation of the pulley 12 can be realized, and the manufacturing cost can be reduced.

  Further, in the present embodiment, as described above, the elastic ring 2 inserted from the mounting shaft 4 side is guided by the conical portion 5 so that the diameter is gradually enlarged, and is mounted in the mounting groove 3 of the cylindrical portion 1a. Thus, the elastic ring 2 can be easily mounted in the mounting groove 3 of the cylindrical portion 1a of the roller body 1.

  In the above-described embodiment, the hollow portion 1B is formed inside the cylindrical portion 1a and the conical portion 5 of the roller body 1, but the hollow portion may be formed only inside the cylindrical portion 1a.

  In the embodiment described above, a plurality of mounting grooves 3 are formed on the outer peripheral surface 1A of the cylindrical portion 1a of the roller body 1, and the plurality of elastic rings 2 are individually mounted in these mounting grooves 3. However, it is also possible to simply form one mounting groove on the outer peripheral surface 1A of the cylindrical portion 1a of the roller body 1 and mount one or more elastic rings on the mounting groove.

DESCRIPTION OF SYMBOLS 1 Roller body 1a Cylindrical part 1A Outer peripheral surface 1B Hollow part 2 Elastic ring 2A Elastic ring 2B Elastic ring 2C Elastic ring 3 Mounting groove 3A Mounting groove 3B Mounting groove 4 Mounting shaft 5 Conical part 6 Locking groove 7 Electric drill insertion Part 8 Groove 9 Drive device (this embodiment)
DESCRIPTION OF SYMBOLS 11 Elevator governor 12 Pulley 13 Governor rope 18 Speed detector 19 Electric drill (rotation drive means)
22 Elastic ring 23 Groove

Claims (4)

Elevator adjustment that has a pulley around which a governor rope is wound and is used in an operation test of an elevator governor that detects an overspeed state of a car based on the rotation speed of the pulley, and that rotates the pulley during the operation test. In the drive of the speed machine,
One roller body having a cylindrical portion with a mounting groove formed on the outer peripheral surface;
A rotation driving means for rotating the roller body;
When it is mounted in the mounting groove of the roller body and transmits the rotational force of the rotation driving means as a rotational force for rotating the pulley during the operation test, and a rotational load greater than the frictional resistance force with the roller body is applied. An elevator governor drive device comprising an elastic ring that slides relative to the roller body. In the elevator governor drive device according to claim 1,
The roller body has an outer diameter that is smaller than the outer diameter of the cylindrical portion, and is disposed between the mounting shaft that is attached to the rotation driving means, the mounting shaft and the cylindrical portion, and the elastic body. A drive device for an elevator governor, comprising: a conical portion that expands a diameter of the ring. In the elevator governor drive device according to claim 2,
A drive device for an elevator governor, wherein a hollow portion is formed at least inside the cylindrical portion of the cylindrical portion and the conical portion of the roller body. In the drive device of the elevator governor of any one of Claims 1-3,
The cylindrical portion of the roller body is provided with a plurality of mounting grooves to which the plurality of elastic rings can be individually attached,
A drive device for an elevator governor, wherein another elastic ring is mounted in a groove formed between the adjacent elastic rings formed by being mounted in the mounting groove.

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