CN210064834U - Elevator device - Google Patents

Abstract

The utility model relates to an elevator device, it possesses: a plurality of compensating ropes, each of which has a first end connected to the car side by side, a second end connected to the counterweight side by side, and an intermediate portion folded back within the hoistway; a plurality of rope head covers, into which the winding part formed by winding the wedge around the second end of each compensating rope is inserted together with the wedge; and a plurality of compensating rods each having a lower end connected to each of the rope head sleeves and an upper end fixed to a beam of a counterweight, the elevator apparatus further including a rope pressing jig for fixing the second end of the compensating rope, the rope pressing jig including: a transverse plate orthogonally provided to the longitudinal direction of the compensation rope; and a clamp plate fixed to the cross plate opposite to the cross plate, the clamp plate having a substantially top hat-shaped horizontal cross section and clamping a distal end of the second end portion of the compensating rope in a left-right overlapping state and an abutting portion of the second end portion abutting the winding portion.

Description

Elevator device

Technical Field

The utility model relates to an elevator device especially relates to an elevator device who possesses compensation rope.

Background

In general, in an elevator, a car is suspended at one end of a hoist rope, a counterweight is suspended at the other end of the hoist rope, and the car and the counterweight are raised and lowered by driving the hoist rope by friction. In addition, there is an elevator including a compensating device having a compensating rope connected between a car and a counterweight to compensate for imbalance in the weight of a hoisting rope received by a hoisting machine due to the lifting of the car.

Japanese patent application laid-open No. 2014-98435 discloses an end connecting structure of a compensating rope, specifically, a "rope gripping tool for gripping a rope by pinching two members provided opposite to each other", which includes: a bending and crimping member that is bent along the outer periphery of the wire rope to be crimped, and has a length in the outer peripheral direction of the wire rope of 1/3 or more and 1/2 or less and a longitudinal length of a diameter or more of the wire rope to be crimped; a clamping plate provided with the bending clamping component; a clamping force applying member that applies a force for clamping the wire rope in a state where the two clamping plates provided with the bending member are arranged to face each other and the wire rope is arranged between the bending clamping members; and the protective component is arranged between the steel wire rope and the bending and clamping component when the steel wire rope is clamped and pressed by the bending component. "

In fact, the end connection structure of the compensating rope is connected to the car and the counterweight by adopting a Babbitt metal (Babbitt) pouring mode. However, the work of the babbitt metal pouring method in the field has problems of low work efficiency and time consumption, and thus, the wedge assembly method is being studied and adopted.

When the wedge block system is adopted for the end connection structure of the compensation cord, generally, the end of the compensation cord is wound around a wedge housed in a cord sleeve (rope socket), and the folded end is fastened with a cord grip (rope grip) in a superposed state. However, since the width dimension of the rope clamp in the front-rear direction is relatively large, when the rope clamp is installed in a narrow hoistway, there is a problem in that it is difficult to secure a gap dimension between hoistway devices specified by relevant regulations. The configuration of the solution disclosed in the above patent document is a configuration in which the folded-back portion of the compensation cord is gripped by a gripper, and this configuration is also a configuration in which the width dimension in the front-rear direction is relatively large.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an elevator device solves at least one among the above-mentioned technical problem, can restrain the width dimension of the fore-and-aft direction of the end connection structure of compensation rope.

In order to solve the above technical problem, the above object is achieved, and the elevator device of the present invention comprises: a plurality of compensating ropes, a first end portion of each of the compensating ropes being connected side by side to a car, a second end portion of each of the compensating ropes being connected side by side to a counterweight, a middle portion of each of the compensating ropes being folded back within a hoistway; a plurality of rope head covers, into which the winding part formed by winding the wedge around the second end of each compensating rope is inserted together with the wedge; and a plurality of compensating rods each having a lower end connected to each of the rope head sleeves, an upper end fixed to a beam of the counterweight, the elevator apparatus further including a rope pressing jig for fixing the second end of the compensating rope, the rope pressing jig including: a transverse plate orthogonally provided to the longitudinal direction of the compensation rope; and a clamp plate fixed to the cross plate opposite to the cross plate, the clamp plate having a substantially top hat-shaped horizontal cross section, the clamp plate clamping a distal end of the second end portion of the compensation cord and an abutting portion of the second end portion of the compensation cord abutting the winding portion in a left-right overlapping state.

Further, the lateral plate may include: a fixing portion opposite to the nip plate; and an extension part extending on the left or right side of the fixing part, wherein the extension part is overlapped with the adjacent compensation rod or the adjacent compensation rope in a front-back manner, so that the position of the rope pressing clamp is limited.

Further, one of the rope pressing jigs may fix the second end portions of the plurality of compensating ropes.

The elevator apparatus may further include at least two of the rope pressing jigs provided separately in the vertical direction, and the second end portions of all the compensating ropes may be fixed by the at least two of the rope pressing jigs.

Further, the elevator apparatus may include a plurality of fasteners for fixing the clamp plate to the cross plate.

The utility model discloses an elevator device can restrain the width dimension of the fore-and-aft direction of the end connection structure of compensation rope.

Problems, structures, and effects other than those described above will be apparent from the following description of the embodiments.

Drawings

Fig. 1 is an overall configuration diagram showing an example of a configuration to which an elevator apparatus of the present invention is applied.

Fig. 2 is a plan view of the hoistway shown in fig. 1.

Fig. 3 is a front view showing an embodiment of an elevator apparatus according to the present invention.

Fig. 4 is a partial perspective view showing an example of an end connection structure of the compensating rope.

Fig. 5 is a partial perspective view showing an example of an end connection structure of the compensating rope.

Fig. 6 is a perspective view showing an example of the wedge.

< notation in the drawing >

1 car; 2, counterweight; 2a beam; 3 hoisting a rope; 4, a traction machine; 5. 5a, 5b, 5c, 5d compensating ropes; 51d a winding part; 52d end; 53d abutting part; 6, a compensation wheel; 7. 7a, 7b, 7c, 7d rope head covers; 8. 8a, 8b, 8c, 8d compensation rods; 9, pressing a rope clamp; 9a lower side rope pressing clamp; 9b, pressing the rope clamp on the upper side; 91 a transverse plate; a 911 fixing part; 912 an extension; 92, clamping the pressure plate; 93 fixing the bolt; 10 a spring member; 11. 11d wedge.

Detailed Description

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings and examples. In the drawings, the same or similar components are denoted by the same reference numerals, and redundant description thereof is omitted.

Fig. 1 is an overall configuration diagram showing an example of a configuration to which an elevator apparatus of the present invention is applied. In the drawings, X represents a horizontal direction (left-right direction), Y represents a front-back direction, Z represents an up-down direction, and these symbols representing directions in other drawings have the same meanings.

The elevator apparatus of fig. 1 includes a car 1, a counterweight 2, a hoisting rope 3, a hoisting machine 4, a compensating rope 5, and a compensating sheave 6.

The car 1 is suspended by a hoist rope 3, and is guided by a car-side guide rail (not shown) provided upright in the hoistway to move up and down in the hoistway.

The counterweight 2 is suspended by the hoist rope 3 and is guided by a counterweight-side guide rail (not shown) provided upright in the hoistway to move up and down in the hoistway.

A traction rope 3 is connected to the car 1 at one end and the counterweight 2 at the other end, and the middle portion is wound around a traction sheave of a traction machine 4.

The hoisting machine 4 is provided in an upper part of the hoistway, and the car 1 and the counterweight 2 are lifted and lowered by frictionally driving the hoisting rope 3 by a traction sheave of the hoisting machine 4.

The compensating ropes 5 are used to constitute a compensating device. The compensating ropes 5 are connected at a first end to the lower part of the car 1 and at a second end to the counterweight 2. The compensating rope 5 is wound around a compensating sheave 6 in its middle portion and is folded back in the hoistway. The unbalance of the weight of the hoisting rope 3 received by the hoisting machine 4 due to the lifting of the car 1 is compensated by the compensating rope 5. FIG. 6 is a perspective view of one example of a wedge.

Fig. 2 is a plan view of the hoistway shown in fig. 1.

The car 1, counterweight 2 and compensating ropes 5 are shown in their positional relationship. The width of the car 1 in the horizontal direction (X) on the outside thereof is M, and the width in the front-rear direction (Y) is N. The dimension in the front-rear direction (Y) between the rear side surface of the car 1 and the frame center of the counterweight 2 is D. The dimension in the front-rear direction (Y) between the frame center of the counterweight 2 and the end center of the compensating rope 5 is d 1. The dimensions of the gaps between the equipment in the hoistway are specified in the relevant regulations. Since the hoistway is narrow and the car 1 and the counterweight 2 are close to each other, it is necessary to minimize the width dimension in the front-rear direction (Y) of the end connecting structure of the compensating rope 5 to ensure the gap dimension between the devices in the hoistway required by the relevant regulations.

Fig. 3 is a front view showing an embodiment of an elevator apparatus according to the present invention. Fig. 4 is a partial perspective view showing an example of an end connection structure of the compensating rope. Fig. 5 is a partial perspective view showing an example of an end connection structure of the compensating rope. Fig. 6 is a perspective view showing an example of the wedge. The end portion connection structure of the compensating rope 5 is explained below.

The second end of the compensating ropes 5 is connected to the counterweight 2. In particular, the second end of the compensating rope 5 is connected to the counterweight 2 by a rope socket 7, a compensating rod 8 and a rope clamp 9. Here, the compensating device of the present embodiment includes 4 compensating ropes, i.e., the compensating rope 5a, the compensating rope 5b, the compensating rope 5c, and the compensating rope 5d, as an example, but is not limited thereto, and the number of compensating ropes may be set according to the type of elevator, actual demand, and the like. As shown, the second ends of the compensating ropes 5a, 5b, 5c and 5d are connected side by side to the counterweight 2. The first ends of the compensating ropes 5a, 5b, 5c and 5d are then connected side by side to the car 1 (not shown in the figure).

The string cover 7 has a tapered insertion hole which is wide at the top and narrow at the bottom, and is wider as it approaches the top. The end of the compensating rope 5 is wound around the wedge 11 and, after being folded back, is inserted together with the wedge 11 into the conical insertion hole of the rope socket 7.

As shown in the figure, 4 rope loops 7 are provided corresponding to the 4 compensating ropes 5. The end of the compensation cord 5a is inserted into the cord sheath 7a, the end of the compensation cord 5b is inserted into the cord sheath 7b, the end of the compensation cord 5c is inserted into the cord sheath 7c, and the end of the compensation cord 5d is inserted into the cord sheath 7 d.

Here, the compensating rope 5d and the rope hitch 7d will be further described by way of example with reference to fig. 4 and 5. As shown in the drawing, the winding portion 51d formed by winding the wedge 11d around the second end portion of the compensating rope 5d is inserted into the tapered insertion hole of the rope sleeve 7d together with the wedge 11 d. The winding portion 51d may be inserted into the taper insertion hole only at a portion near the upper portion (top portion), and may be inserted into the taper insertion hole entirely. For clarity of illustration, wedge 11d is omitted from fig. 4, and wedge 11d is shown in fig. 5.

As shown in fig. 6, the wedge member 11 is a wedge-shaped member having a wide top and a narrow bottom, corresponding to the shape of the tapered insertion hole. Here, the same number of wedge pieces 11 as the number of compensating ropes 5 is provided.

In the second end portion of the compensating rope 5d, the tip 52d of the compensating rope 5d is folded back and left-right overlaps the abutting portion 53d adjacent to the winding portion 51 d. That is, the tip 52d of the second end portion of the compensation string 5d and the abutting portion 53d of the compensation string 5d overlap in the horizontal direction (X), and they are in contact with each other. The tip 52d and the abutting portion 53d in the left-right overlapping state are fixed by a string pressing jig 9 described later.

Returning to fig. 3, as shown in the drawing, in order to prevent the adjacent rope end caps 7 from interfering with each other and to provide the compensation ropes 5a, 5b, 5c, and 5d as close as possible, the rope end caps 7 are provided in two groups, the rope end caps 7a and 7c are provided at substantially the same height, and the rope end caps 7b and 7d are provided at substantially the same height.

The compensating rod 8 is connected at its lower end with the rope socket 7 and at its upper end fixed to the beam 2a of the counterweight 2 by means of a spring element 10. Here, the compensating rod 8a is connected to the rope socket 7a, the compensating rod 8b is connected to the rope socket 7b, the compensating rod 8c is connected to the rope socket 7c, and the compensating rod 8d is connected to the rope socket 7 d. Further, the length dimensions of the compensation lever 8a and the compensation lever 8c are made substantially the same, and the length dimensions of the compensation lever 8b and the compensation lever 8d are made substantially the same, so that the socket 7a and the socket 7c are located at substantially the same height position, and the socket 7b and the socket 7d are located at substantially the same height position.

The tether pressing jig 9 is described as an example including two tether pressing jigs, i.e., a lower tether pressing jig 9a and an upper tether pressing jig 9b, but the present invention is not limited thereto, and only one tether pressing jig may be provided, and the number of tether pressing jigs may be set according to the number of compensating cords or the like. Preferably, two or more rope pressing jigs are provided.

The second ends of all the compensating ropes are fixed here by means of two rope clamps. If 5 compensation ropes are provided, one rope pressing clamp fixes the second end parts of 2 compensation ropes, the other rope pressing clamp fixes the second end parts of 3 compensation ropes, if 8 compensation ropes are provided, one rope pressing clamp fixes the second end parts of 4 compensation ropes, and the other rope pressing clamp fixes the second end parts of 4 compensation ropes. In this example, since 4 compensating ropes are provided, the second end portion of the compensating rope 5a and the second end portion of the compensating rope 5c are fixed by the lower rope pressing jig 9a, and the second end portion of the compensating rope 5b and the second end portion of the compensating rope 5d are fixed by the upper rope pressing jig 9 b.

The rope clamp 9 will be described in detail below with reference to fig. 4. Here, the structure of the side rope clamps 9b will be described as an example.

The upper cord pressing jig 9b includes a horizontal plate 91, a pressing plate 92, and a fixing bolt 93 as a fastening member.

The cross plate 91 is a long and thin member and is made of a metal plate material. The cross plate 91 is provided orthogonal to the longitudinal direction (Z) of the compensating rope 5. That is, the cross plate 91 is disposed in the hoistway perpendicular to and laterally of the compensating rope 5. The horizontal plate 91 has a predetermined lateral width (horizontal direction X). Preferably, the transverse plate 91 has a lateral width greater than its upper and lower heights, which are greater than its front and rear widths.

The nip plate 92 is formed of a metal plate material and has a substantially top hat-shaped horizontal cross section. That is, the nip plate 92 is substantially hat-shaped in plan view, and the nip plate 92 has a convex portion which is convex forward and two end portions which are flat-plate-shaped and located on both sides of the convex portion, respectively, the convex portion being shaped like a hat body and the end portions on both sides being shaped like a hat brim. Preferably, the nip plate 92 has a lateral width greater than its upper and lower heights. Preferably, the vertical height of the nip plate 92 is substantially the same as the vertical height of the horizontal plate 91.

The clamp plate 92 is disposed opposite the cross plate 91 and attached to the cross plate 91. The nip plate 92 is for nipping the tip end of the second end portion of the compensating rope 5 and the abutting portion of the second end portion of the compensating rope 5 in the left-right overlapping state. More specifically, the convex portion of the nip plate 92 receives the tip and the abutting portion of the second end portion that are overlapped left and right, and both end portions are used to be locked to the cross plate 91 with fixing bolts 93 described later.

The number of the clamp plates 92 provided in the tether pressing jig 9 is the same as the number of the compensating ropes 5 to be fixed, and here, two upper tether pressing jigs 9b and two lower tether pressing jigs 9a are provided.

The number of the fixing bolts 93 is twice as large as that of the clamp plate 92 because the bolts are fixed to both the right and left sides of the clamp plate 92. The fastener is not limited to a fixing bolt as long as it is a member for fixing the nip plate to the cross plate.

Furthermore, the position of the rope clamp 9 is limited to the adjacent compensating rod 8 or the adjacent compensating rope 5. As shown in fig. 4, the horizontal plate 91 includes a fixing portion 911 facing the nip plate 92 and an extending portion 912 extending to the left or right of the fixing portion 911. The extension 912 of the transverse plate 91 of the upper rope clamp 9b overlaps the adjacent compensating rods, i.e. the compensating rods 8a and 8c, in front and rear, so that the position of the upper rope clamp 9b is limited by the compensating rods 8a and 8 c. On the other hand, as shown in fig. 3, the extension of the horizontal plate 91 of the lower clip 9a overlaps the adjacent compensating ropes, i.e., the compensating ropes 5b and 5d, so that the position of the lower clip 9a is restricted by the compensating ropes 5b and 5 d.

The compensating rope 5 of this embodiment has a wedge assembly type end connection structure. That is, the end of the compensating rope 5 is wound around the wedge 11 and folded back, and in this state, is inserted into the insertion hole of the rope sleeve together with the wedge 11. Then, the terminal end of the folded-back compensation cord 5 is sandwiched between the cross plate 91 and the clamp plate 92 in a superimposed state, and is fastened by the fixing bolt 93, thereby being clamped and fixed. As described above, since the end of the compensating rope 5 is sandwiched and fixed by the plate material, the width dimension in the front-rear direction of the end connecting structure of the compensating rope 5 can be suppressed. The above steps are repeated, and the ends of the compensating ropes 5a and 5c are fixed by the lower rope clamps 9a, and the ends of the compensating ropes 5b and 5d are fixed by the upper rope clamps 9 b. At this time, the extension of the horizontal plate 91 of the lower clip 9a overlaps the compensation cord 5b and the compensation cord 5d in the front-rear direction, and the extension of the horizontal plate 91 of the upper clip 9b overlaps the compensation lever 8a and the compensation lever 8c in the front-rear direction. Thereby, the positions of the lower tether pressing jig 9a and the upper tether pressing jig 9b are regulated. Since the compensating rope 5 is formed by twisting strands around the core wire, it has a property that it rotates when a force is applied in the tension direction, and the compensating rope is not rotated by position restriction of the lower and upper rope pressing jigs 9a and 9 b.

As described above, the elevator device of the present invention includes: a plurality of compensating ropes 5, a first end of each compensating rope 5 being connected side by side to the car 1, a second end of each compensating rope 5 being connected side by side to the counterweight 2, an intermediate portion of each compensating rope 5 being folded back within the hoistway; a plurality of rope head covers 7 into which a winding portion formed by winding the wedge 11 around the second end of each compensating rope 5 is inserted together with the wedge 11; and a plurality of compensating rods 8, a lower end of each compensating rod 8 being connected to each rope socket 7, an upper end of each compensating rod 8 being fixed to a beam of the counterweight 2, the elevator apparatus including a rope pressing jig 9, the rope pressing jig 9 being for fixing a second end of the compensating rope 5, the rope pressing jig 9 including: a cross plate 91 provided orthogonally to the longitudinal direction of the compensating rope 5; and a clamp plate 92 fixed to the transverse plate 91 opposite to the transverse plate 91, the clamp plate 92 having a substantially top hat-shaped horizontal cross section, the clamp plate 92 clamping a distal end of the second end portion of the compensating rope 5 and an abutting portion of the second end portion of the compensating rope 5 abutting the winding portion in a left-right overlapping state.

With the above configuration, the end portions of the compensating ropes 5 are fixed by sandwiching the plate material therebetween, and therefore the width dimension in the front-rear direction of the end portion connecting structure of the compensating ropes 5 can be suppressed as compared with the conventional method of fixing the end portions of the compensating ropes by rope nipples. Moreover, the diameter of the compensating rope 5 can be easily matched, and the structure is high in universality.

Furthermore, the utility model discloses in, diaphragm 91 possesses: a fixing portion 911 opposed to the nip plate 92; and an extension 912 extending on the left or right side of the fixing portion 911, and limiting the position of the rope pressing jig 9 by overlapping the extension with the adjacent compensation lever 8 or the adjacent compensation rope 5 in the front-rear direction.

With the above configuration, the rotation of the compensating rope 5 having a property of rotating when a force is applied in the tension direction can be prevented.

Furthermore, in the present invention, a rope pressing jig 9 fixes the second end portions of the plurality of compensating ropes 5.

With the above configuration, the number of components can be reduced, the number of the compensating ropes 5 can be easily matched, and the structure is highly versatile.

Furthermore, the utility model discloses in, the elevator device possesses separately two at least pressure rope anchor clamps 9 that set up from top to bottom, presses the second tip of rope anchor clamps 9 fixed all compensation ropes 5 by two at least.

With the above configuration, the number of components can be reduced.

In the above, the embodiment of the elevator apparatus of the present invention has been described including its operation and effect. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention described in the claims. For example, the above-described embodiments are described in detail to make the present invention easily understandable, but the present invention is not necessarily limited to all the configurations described. Further, a part of the structure of one embodiment can be replaced with the structure of another embodiment, and further, the structure of another embodiment can be added to the structure of one embodiment. Further, addition, deletion, and replacement of another structure can be performed on a part of the structures of the embodiments.

Claims (5)

1. An elevator device is provided with: a plurality of compensating ropes, a first end portion of each of the compensating ropes being connected side by side to a car, a second end portion of each of the compensating ropes being connected side by side to a counterweight, a middle portion of each of the compensating ropes being folded back within a hoistway; a plurality of rope head covers, into which the winding part formed by winding the wedge around the second end of each compensating rope is inserted together with the wedge; and a plurality of compensation rods each having a lower end connected with each of the rope head housings and an upper end fixed to a beam of the counterweight,

the elevator device is also provided with a rope pressing clamp for fixing the second end of the compensating rope,

the rope pressing clamp comprises: a transverse plate orthogonally provided to the longitudinal direction of the compensation rope; and a clamp plate fixed to the cross plate opposite to the cross plate, the clamp plate having a substantially top hat-shaped horizontal cross section, the clamp plate clamping a distal end of the second end portion of the compensation cord and an abutting portion of the second end portion of the compensation cord abutting the winding portion in a left-right overlapping state.

2. Elevator arrangement according to claim 1,

the transverse plate is provided with: a fixing portion opposite to the nip plate; and an extension part extending on the left or right side of the fixing part, wherein the extension part is overlapped with the adjacent compensation rod or the adjacent compensation rope in a front-back manner, so that the position of the rope pressing clamp is limited.

3. Elevator arrangement according to claim 1,

one of the rope pressing clamps fixes the second ends of the plurality of compensating ropes.

4. Elevator arrangement according to claim 1,

the elevator device is provided with at least two rope pressing clamps which are arranged separately from each other, and the second end parts of all the compensating ropes are fixed by the at least two rope pressing clamps.

5. Elevator arrangement according to claim 1,

the elevator device is provided with a plurality of fasteners for fixing the clamp plate to the cross plate.

Images