JP2005126218A - Elevator main rope support device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator main rope support device in which a bending moment does not act on a guide rail even when a relative deviation occurs in the height of both end fixing portions without applying an excessive load to the guide rail. Get.
SOLUTION: A guide rail erected in an elevator hoistway, a hoistway fixing part provided on an elevator hoistway wall, and a guide rail and a hoistway fixing part. And a support means provided with a rope stop portion connected to the rope, and the support means is rotatably fixed to at least one of the guide rail and the hoistway fixing portion.
[Selection] Figure 3

Description

  The present invention relates to a support device for an elevator main rope.

  In a conventional elevator main rope support device, a guide rail that guides a car and a counterweight is erected in a hoistway, and an elevator that lays a rope that drives the counterweight and the counterweight by a hoisting machine, There is one in which the load applied to the guide rail is divided and reduced by supporting at least one of the rope ends on a guide rail and a support fixed to the hoistway fixing body (see, for example, Patent Document 1).

JP 2001-89050 A

  In the elevator main rope support device described in Patent Document 1, at least one of the rope ends is supported by a guide rail and a support fixed to the hoistway fixing body, so that the load applied to the rope is lifted and lowered by the guide rail. Although it is divided and reduced to the road fixed body, it is supported across the guide rail and the support fixed to the hoistway fixed body. When there is a relative displacement, there is a risk that an excessive stress will occur in the fixed part at both ends due to a shift in the height of the fixed part at both ends, or a bending moment may act on the guide rail. .

  In addition, as a main rope support device for other elevators, a method in which both ends are supported across a support fixed to a hoistway fixed body, or only one end is fixed to a guide rail and cantilevered. A method is considered. However, in a method in which both ends are supported across the support fixed to the hoistway fixing body, the device is inevitably longer because it is provided across the hoistway walls facing each other. There was a problem that workability was poor because there was a need for hole drilling work and hole filling work after both ends were inserted. In addition, in the method in which only one end is fixed to the guide rail and is cantilevered, all the load applied to the support device is supported by one guide rail. Therefore, an excessive load is applied to the guide rail. When the allowable load is exceeded, there is a problem that the size of the guide rail needs to be changed.

  The present invention has been made to solve the above-described problems, and its purpose is not to apply an excessive load to the guide rail, but even when a relative deviation occurs in the height of both end fixing portions. Another object of the present invention is to provide an elevator main rope support device in which no bending moment acts on the guide rail.

  An elevator main rope support device according to the present invention straddles a guide rail erected in an elevator hoistway, a hoistway fixing portion provided on an elevator hoistway wall, and the guide rail and hoistway fixing portion. And a support means provided at the intermediate portion of the rope stop portion connected to the main rope, and the support means is rotatably fixed to at least one of the guide rail and the hoistway fixing portion. It has been done.

  The present invention provides a guide rail standing in an elevator hoistway, a hoistway fixing portion provided on an elevator hoistway wall, and straddling the guide rail and hoistway fixing portion, and is connected to a main rope. And the support means provided at the intermediate part, and the support means is configured to be rotatably fixed to at least one of the guide rail and the hoistway fixing part, A bending moment does not act on the guide rail even when a relative shift occurs in the height of the fixed portions at both ends without imposing an excessive load on the guide rail.

Embodiment 1 FIG.
1 is a plan view of an elevator apparatus according to Embodiment 1 of the present invention, FIG. 2 is a front view thereof, FIG. 3 is a front view of an elevator main rope support apparatus according to Embodiment 1 of the present invention, and FIG. FIG.

  In the figure, in the elevator hoistway 1, a car guide rail 2 and a counterweight guide rail 3 having a T-shaped cross section are erected so as to face each other, and a car 4 and a counterweight 5 are provided. It is engaged with each guide rail and guided in the vertical direction. Two car suspension wheels 6 are provided at the lower part of the car 4, and one counterweight suspension car 7 is provided at the upper part of the balance weight 5. The main rope 8 of the elevator is wound around the car suspension wheel 6, the counterweight suspension wheel 7, and a drive sheave 9 a of the elevator hoisting machine 9 provided at the upper part of the hoistway 1. Further, one end of the main rope 8 on the side of the car suspension wheel 6 is fixed to a support means 10 which will be described later via a car side rope stopper 8a having a shackle spring, and the other end of the counterweight suspension wheel 7 is illustrated. Although it is not, it is being fixed to another supporting means provided in the hoistway 1 upper part similarly to the car suspension wheel 6 side. With the configuration as described above, the car 4 and the counterweight 5 suspended in a 2: 1 roping manner by the main rope 8 are respectively guided by the driving sheave 9a of the hoisting machine 9 rotating. It goes up and down in the opposite directions along the rail.

Next, the support means 10 will be described.
A support base 11 is mounted on the car guide rail 2 at the upper end of one of the car guide rails 2 erected in the hoistway 1, and a car guide rail is provided by a rail clip 12 provided below the support base 11. It is fixed by pinching the two flange portions. The support base 11 has two contact surfaces 11a and 11b that form a right angle at the lower portion thereof, and the two contact surfaces 11a and 11b are in contact with the back and top surfaces of the car guide rail 2, respectively. A trapezoidal parallel plate 11c having a predetermined gap is erected on the upper portion of the support base 11, and a through hole is provided on the upper portion of the opposing parallel plate 11c. In addition, the bracing beam 13 whose cross section is I-shaped is inserted and fixed in a fixing hole 1a provided on a hoistway wall on the landing side, one end portion of which is a hoistway fixing portion. The other end portion has a T-shaped cross section by cutting out an I-shaped lower portion, and the T-shaped lower portion is arranged in the gap between the parallel plates 11c. Further, a through hole is provided in a position that is in a straight line with the through hole provided in the parallel plate 11c in the T-shaped lower portion, and a pin 14a is inserted into the through hole and the through hole provided in the parallel plate 11c. By doing so, the support base 11 and the rope holding beam 13 are fixed so as to be rotatable. In this way, at the center portion of the rope retaining beam 13 in which only the end portion on the side of the car guide rail 2 is fixed so as to be rotatable, a cage side rope fixing portion 8a connected to the main rope 8 is provided. Reference numeral 10 denotes a structure in which a load applied to the main rope 8 is supported at both ends by the hoistway wall and the car guide rail 2. In addition, the support means 10 is comprised from the leashing beam 13, the support stand 11, the pin 14a, the rail clip 12, and the cage | basket side leashing part 8a.

  According to the first embodiment of the present invention, the support means 10 is supported across the fixing hole 1a provided in the hall side hoistway wall composed of the hoistway fixing portion and the guide rail 2 for the car. The stop beam 13 does not need to be long enough to be provided across the opposite hoistway walls, is excellent in installation workability, reduces the load applied to the car guide rail 2 for supporting both ends, and the guide rail for the car. No need to change the size of 2. Further, since the bracing beam 13 and the support 11 fixed to the upper end of the car guide rail 2 are rotatably fixed by the pin support structure, the hoistway wall side of the brazing beam 13 is caused by ground subsidence or the like. Even when a relative deviation occurs between the height of the fixing portion and the height of the fixing portion on the side of the car guide rail 2, the toe beam 13 and the support 11 rotate, and a bending moment acts on the car guide rail 2. The load is applied only in the vertical direction. Further, since the car guide rail 2 is installed on the basis of the landing side during the installation work, there is little error in the distance between the landing side hoistway wall and the car guide rail 2, and each car 4 type is different. The length of the leash beam 13 is determined. For this reason, it is possible to reduce the types of the ropes 13 and reduce the cost.

  In the first embodiment of the present invention, the hoistway wall is used as the hoistway fixing portion, and the one end portion of the tightening beam 13 is provided in the fixing hole 1a provided in the hoistway wall. There is no particular problem as long as the bracing beam 13 can be installed with something fixed to the building such as a building beam, and the same effect as in the first embodiment can be obtained even if the hoistway fixing portion is a building beam or the like. .

Embodiment 2. FIG.
FIG. 5 is a front view of the main rope support device for an elevator according to Embodiment 2 of the present invention. In the figure, the bracing beam 13 whose cross section has an I shape has a cross section of T when the hoistway side fixing portion is cut out at the lower portion of the I shape like the car guide rail 2 side fixing portion. It has a letter shape, and has a through hole in its T-shaped lower part. Further, a support base 17 having the same configuration as the upper part of the support base 11 is installed in the fixing hole 1a provided in the hoistway wall on the landing side, which is composed of the hoistway fixing part. By inserting the pin 14b into the through hole provided and the through hole provided on the hoistway side of the rope holding beam 13, the rope holding beam 13 and the support base 17 are fixed rotatably. The support means 10 is composed of a rope retaining beam 13, support bases 11 and 17, pins 14a and 14b, a rail clip 12 and a car side rope anchoring portion 8a, and the others are the same as in the first embodiment. Yes.

  According to the second embodiment of the present invention, since both ends of the clasp beam 13 are rotatably fixed by the pin support structure, the hoistway wall side fixed portion of the cleat beam 13 is caused by ground subsidence or the like. Even when a relative deviation occurs between the height and the height of the fixed portion on the side of the car guide rail 2, a bending moment does not act on the car guide rail 2, and a load acts only in the vertical direction. It has become. Since both end fixing portions are fixed so as to be rotatable, it is particularly effective for a building that is expected to have a large relative displacement.

Embodiment 3 FIG.
6 is a front view of a main rope support device for an elevator according to Embodiment 3 of the present invention, and FIG. 7 is a side view thereof. In the drawing, a plurality of through holes are provided in the flange portion of the car guide rail 2 erected in the hoistway 1, and the support base 11 is fastened and fixed by bolts 15 using the through holes on the back surface thereof. ing. The support 11 has a vertical contact surface 11 a at the lower portion thereof, and is fixed in a state where the contact surface 11 a is in contact with the back surface of the car guide rail 2. In addition, the other configuration is the same as that of the first embodiment, and the support base 11 and the rope-fastening beam 13 are fixed to be rotatable.

  According to the third embodiment of the present invention, the support base 11 can be installed at an arbitrary position on the car guide rail 2, and therefore, the ropes 13 are arranged in accordance with the installation position on the hoistway fixing portion side. It is possible. Therefore, the space above the hoistway 1 can be used effectively and the overhead dimension can be shortened as compared with the case where the rope clamp 13 is fixed to the upper end of the car guide rail 2. In the third embodiment, the hoistway wall side end of the bracing beam 13 is fixed to the fixing hole 1a provided in the hoistway wall. However, as in the second embodiment, both ends are pin-supported. By fixing so as to be able to rotate, it is possible to cope with buildings that are expected to have a large relative displacement.

Embodiment 4 FIG.
FIG. 8 is a front view of a main rope support device for an elevator according to Embodiment 4 of the present invention. In the figure, the contact surface 11b of the support base 11 protrudes toward the center portion side of the cleat 13 and a sensor 16 for detecting the inclination of the cleat 13 is provided on the upper surface of the contact surface 11b. Other configurations are the same as those in the first embodiment.

  According to the fourth embodiment of the present invention, by installing the sensor 16 for detecting the inclination of the anchoring beam 13 on the support base 11, when the anchoring beam 13 is inclined more than an allowable value due to ground subsidence or the like, the elevator It is possible to take measures such as stopping the operation or issuing an alarm. As in the second embodiment, the hoistway side end of the rope tie beam 13 is fixed to be rotatable, or the rope tie beam 13 is fixed to the intermediate portion of the car guide rail 2 as in the third embodiment. It goes without saying that the same effect can be obtained even in the case of such a configuration.

It is a top view of the elevator apparatus in Embodiment 1 of this invention. It is a front view of the elevator apparatus in Embodiment 1 of this invention. It is a front view of the main rope support apparatus of the elevator in Embodiment 1 of this invention. It is a side view of the main rope support apparatus of the elevator in Embodiment 1 of this invention. It is a front view of the main rope support apparatus of the elevator in Embodiment 2 of this invention. It is a front view of the main rope support apparatus of the elevator in Embodiment 3 of this invention. It is a side view of the main rope support apparatus of the elevator in Embodiment 3 of this invention. It is a front view of the main rope support apparatus of the elevator in Embodiment 4 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hoistway 1a Fixing hole 2 Car guide rail 3 Counterweight guide rail 4 Car 5 Counterweight 6 Car suspension car 7 Counterweight suspension car 8 Main rope 8a Car side rope stop 9 Lifting machine 9a Drive sheave 10 Support means 11 , 17 Support base 11a, 11b Contact surface 11c Parallel plate 12 Rail clip 13 Tightening beam 14a, 14b Pin 15 Bolt 16 Sensor

Claims (7)

  A guide rail standing in the elevator hoistway, a hoistway fixing part provided on the elevator hoistway wall, and extending over the guide rail and the hoistway fixing part and connected to the main rope And a supporting means provided at an intermediate portion, wherein the supporting means is rotatably fixed to at least one of the guide rail and the hoistway fixing part. The main rope support device for the elevator.   A guide rail standing in the elevator hoistway, a hoistway fixing part provided on the elevator hoistway wall, and extending over the guide rail and the hoistway fixing part and connected to the main rope And a support means provided at the intermediate portion, the support means being fixed to be rotatable with respect to at least one of the guide rail and the hoistway fixing part. A main rope support device for an elevator, comprising a sensor for detecting an inclination.   The support means includes a support base provided on the guide rail, and a tightening beam provided across the hoistway fixing part and the support base and having a rope stopping part, The elevator main rope support device according to claim 1, wherein the main rope support device is fixed to the support base so as to be rotatable.   The elevator main rope support device according to claim 3, wherein the support base is mounted and fixed on an upper end portion of the guide rail.   The elevator main body according to claim 4, wherein the support base includes a contact surface that contacts a back surface of the guide rail, and the guide rail is held by a rail clip provided on the contact surface. Rope support device.   The elevator main rope support device according to claim 3, wherein the support base is fixed to a back surface of the guide rail. The said support means is fixed with respect to at least any one of the said guide rail and the said hoistway fixing | fixed part by the pin support structure so that rotation is possible. The main rope support device of the elevator as described.

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