CN210064834U - elevator installation - Google Patents

Abstract

The utility model relates to an elevator device, which is provided with a plurality of compensating ropes, the first ends of the compensating ropes are connected to the car side by side, the second ends are connected to the counterweight side by side, and the middle part is in the hoistway Folded back; a plurality of rope head covers, respectively for the winding portion formed by winding the second end of each of the compensating ropes around a wedge-shaped piece to be inserted together with the wedge-shaped piece; and a plurality of compensating rods, each of which is The lower end is connected to each of the rope head covers, and the upper end is fixed to the beam of the counterweight. The elevator apparatus further includes a rope pressing fixture for fixing the second end of the compensation rope, and the rope pressing fixture includes: A transverse plate arranged orthogonal to the length direction of the compensation rope; and a clamping plate fixed to the transverse plate opposite to the transverse plate, the horizontal section of the clamping plate is substantially hat-shaped, and the clamping plate is in the shape of a top hat. A distal end of the second end portion of the compensation cord in a left-right overlapping state and an abutment portion of the second end portion adjacent to the winding portion.

Description

elevator installation

technical field

The utility model relates to an elevator device, in particular to an elevator device with a compensation rope.

Background technique

Generally, in an elevator, a car is suspended at one end of a hoisting rope, a counterweight is suspended on the other end of the hoisting rope, and the hoisting rope is frictionally driven by a hoisting machine to move the car and the counterweight up and down. In addition, there is an elevator provided with a compensating device having a compensating rope connected between a car and a counterweight for compensating for the unbalance of the weight of the hoisting rope borne by the hoisting machine due to the lifting and lowering of the car. .

Japanese Patent Application Laid-Open No. 2014-98435 discloses an end connection structure of a compensation rope, and in particular, discloses a "wire rope gripper for holding a wire rope by clamping and pressing two parts opposite to each other", "which A bending and crimping member is provided, which is bent along the outer periphery of the wire rope to be crimped, and the length relative to the outer peripheral direction of the wire rope is 1/3 or more and 1/2 or less of the outer periphery of the wire rope to be crimped. , the length of the longitudinal direction is more than the diameter of the wire rope to be crimped; the crimping plate is provided with the curved crimping member; the clamping force imparting member is arranged so that the two crimping plates provided with the bending member are oppositely arranged and in a state where the wire rope is arranged between the bending and pressing members, a force for holding the wire rope is given; and a protection member is provided between the wire rope and the bending member when the bending member is pressing the wire rope. Clamp between parts.”

In fact, the end connection structure of the compensation rope is mostly connected to the car and the counterweight by means of Babbitt pouring. However, the operation of the babbitt alloy pouring method on site has problems such as low operation efficiency and time-consuming, so the industry is considering changing to the wedge-shaped assembly method.

In the case of adopting the wedge assembly method for the end connecting structure of the compensating rope, generally, the end of the compensating rope is wound around a wedge that is accommodated in a rope socket, and the folded ends are overlapped. Tie with rope grips. However, since the width dimension in the front-rear direction of the rope chuck is relatively large, when it is installed in a narrow hoistway, there is a problem that it is difficult to ensure the clearance dimension between hoistway equipment stipulated by the relevant regulations. Moreover, the structure of the invention disclosed by the said patent document is a structure which grasps the folded-back part of a compensating cord with a gripper, and this structure also has a relatively large width dimension in the front-rear direction.

Utility model content

An object of the present invention is to provide an elevator apparatus that solves at least one of the above-mentioned technical problems and can suppress the width dimension of the end connecting structure of the compensation rope in the front-rear direction.

In order to solve the above-mentioned technical problems and achieve the above-mentioned purpose, the elevator apparatus of the present invention includes a plurality of compensation ropes, the first ends of the compensation ropes are connected to the car side by side, and the second ends of the compensation ropes are connected side by side to the car. The parts are connected to the counterweight side by side, and the middle part of each compensation rope is folded back in the hoistway; a plurality of rope head covers are respectively provided for the second end of each compensation rope to be wound around the wedge-shaped part formed by the winding part inserted together with the wedge; and a plurality of compensating rods, the lower end of each compensating rod is connected with each of the rope head covers, the upper end of each compensating rod is fixed to the beam of the counterweight, and the elevator apparatus also A rope pressing jig is provided for fixing the second end of the compensation rope, and the rope pressing jig is provided with: a horizontal plate provided orthogonal to the longitudinal direction of the compensation rope; The transverse plate is relatively fixed to the clamping plate on the transverse plate, the horizontal section of the clamping plate is roughly in the shape of a hat, and the clamping plate clamps the second end of the compensating rope in the left-right overlapping state The end of the compensating cord and the abutment of the second end of the compensating rope abutting the winding portion.

In addition, the horizontal plate may include: a fixing part facing the clamping plate; and an extension part extending on the left or right side of the fixing part, and the adjacent said The compensating rod or the adjacent compensating ropes overlap front and rear, thereby limiting the position of the rope pressing clamp.

In addition, one of the rope pressing jigs may fix the second ends of the plurality of compensation ropes.

Further, the elevator apparatus may include at least two of the rope pressing jigs provided vertically and apart, and the second ends of all the compensation ropes may be fixed by the at least two rope pressing jigs.

In addition, the elevator apparatus may include a plurality of fasteners for fixing the clamping plate to the horizontal plate.

The elevator apparatus of the present invention can suppress the width dimension of the end connecting structure of the compensation rope in the front-rear direction.

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

Description of drawings

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

FIG. 4 is a partial perspective view showing an example of an end portion connection structure of a compensation rope.

FIG. 5 is a partial perspective view showing an example of an end portion connecting structure of a compensation rope.

FIG. 6 is a perspective view showing an example of a wedge.

<Marks in the drawings>

1 car; 2 counterweight; 2a beam; 3 traction rope; 4 traction machine; 5, 5a, 5b, 5c, 5d compensation rope; 51d winding part; 52d end; 53d abutment part; 6 compensation wheel; 7 , 7a, 7b, 7c, 7d rope head cover; 8, 8a, 8b, 8c, 8d compensation rod; 9 rope clamp; 9a lower rope clamp; 9b upper rope clamp; 91 horizontal plate; 911 fixed part; 912 Extensions; 92 Clamping Plates; 93 Fixing Bolts; 10 Spring Parts; 11, 11d Wedges.

Detailed ways

Hereinafter, the specific embodiments of the present invention will be described in detail with reference to the accompanying drawings and embodiments. In each figure, the same reference numerals are attached to the same or similar structures, and overlapping descriptions are omitted.

Fig. 1 is an overall configuration diagram showing an example of the configuration of an elevator apparatus to which the present invention is applied. In the figure, X represents the horizontal direction (left-right direction), Y represents the front-rear direction, and Z represents the up-down direction. In other drawings, these symbols representing directions 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 hoisting rope 3, and is guided by a pair of car-side guide rails (not shown) vertically installed in the hoistway to move up and down in the hoistway.

The counterweight 2 is suspended by the hoisting rope 3, and is guided by a pair of counterweight side guide rails (not shown in the figure) vertically installed in the hoistway to move up and down in the hoistway.

One end of the hoisting rope 3 is connected to the car 1 , the other end is connected to the counterweight 2 , and the middle part is wound on the hoisting sheave of the hoisting machine 4 .

The hoisting machine 4 is installed in the upper part of the hoistway, and the hoisting rope 3 is frictionally driven by the traction sheave of the hoisting machine 4 to raise and lower the car 1 and the counterweight 2 .

The compensating rope 5 is used to constitute the compensating device. The first end of the compensation rope 5 is connected to the lower part of the car 1 and the second end is connected to the counterweight 2 . The middle part of the compensating rope 5 is wound on the compensating wheel 6, and is set back in the hoistway. The unbalance of the weight of the hoisting rope 3 borne by the hoisting machine 4 due to the lifting and lowering of the car 1 is compensated by the compensating rope 5 . FIG. 6 is a perspective view of an example of a wedge.

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

The positional relationship between the car 1, the counterweight 2 and the compensation rope 5 is shown in the figure. 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-back 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 compensation rope 5 is d1. The size of the gap between the equipment in the hoistway has been specified in the relevant regulations. Because the hoistway is narrow, the car 1 and the counterweight 2 are similar, so it is necessary to reduce the width dimension of the front and rear direction (Y) of the end connecting structure of the compensation rope 5 as much as possible to ensure the required distance between the equipment in the hoistway. Gap size.

Fig. 3 is a front view showing an embodiment of the elevator apparatus of the present invention. FIG. 4 is a partial perspective view showing an example of an end portion connection structure of a compensation rope. FIG. 5 is a partial perspective view showing an example of an end portion connecting structure of a compensation rope. FIG. 6 is a perspective view showing an example of a wedge. Hereinafter, the end portion connection structure of the compensation rope 5 will be described.

The second end of the compensation rope 5 is connected to the counterweight 2 . Specifically, the second end of the compensating rope 5 is connected to the counterweight 2 through the rope head cover 7 , the compensating rod 8 and the rope pressing clamp 9 . Here, as an example, the compensating device of this embodiment includes four compensating ropes, namely compensating rope 5a, compensating rope 5b, compensating rope 5c, and compensating rope 5d, but it is not limited to this. to set the number of compensation ropes. As shown, the compensating rope 5a, compensating rope 5b, compensating rope 5c and the second end of compensating rope 5d are connected to the counterweight 2 side by side. The compensating rope 5a, compensating rope 5b, compensating rope 5c and the first end of the compensating rope 5d are then connected side by side to the car 1 (not shown in the figures).

The rope head cover 7 has a tapered insertion hole, which is wider at the top and narrower at the bottom, and becomes wider toward the upper end. The end of the compensating rope 5 is wound onto the wedge 11 and inserted together with the wedge 11 into the conical insertion hole of the rope head cover 7 after being folded back.

As shown in the figure, four rope head covers 7 are provided corresponding to the four compensation ropes 5 . The end of the compensation rope 5a is inserted into the rope head cover 7a, the end of the compensation rope 5b is inserted into the rope head cover 7b, the end of the compensation rope 5c is inserted into the rope head cover 7c, and the end of the compensation rope 5d is inserted into the rope head cover 7d.

Here, with reference to FIG. 4 and FIG. 5 , the compensation rope 5d and the rope head cover 7d are taken as examples for further description. As shown in the figure, a winding portion 51d formed by winding the second end of the compensation cord 5d around the wedge 11d is inserted into the tapered insertion hole of the cord head cover 7d together with the wedge 11d. The winding portion 51d should just be inserted into the tapered insertion hole at a portion close to the upper portion (top portion), and of course, it may be a structure in which the entire portion is inserted into the tapered insertion hole. For clarity, the wedge 11d is omitted in FIG. 4 and shown in FIG. 5 .

As shown in FIG. 6 , the wedge-shaped member 11 is a wedge-shaped component, which is wide at the top and narrow at the bottom, corresponding to the shape of the tapered insertion hole. Here, the same number of wedges 11 as the number of compensation cords 5 are provided.

In the second end portion of the compensation cord 5d, the distal end 52d of the compensation cord 5d is folded back and overlapped left and right with the adjoining portion 53d adjacent to the winding portion 51d. That is, the distal end 52d of the second end portion of the compensation cord 5d and the abutment portion 53d of the compensation cord 5d overlap in the horizontal direction (X) and are in contact with each other. And the terminal 52d and the adjoining part 53d in such a left-right overlapping state are fixed by the rope clamp 9 mentioned later.

Returning to FIG. 3, as shown in the figure, in order to prevent the adjacent rope head covers 7 from interfering with each other, and the compensation rope 5a, the compensation rope 5b, the compensation rope 5c, and the compensation rope 5d are arranged as close as possible. Here, the rope head covers 7 are divided into Two sets of settings, the rope head cover 7a and the rope head cover 7c are set at substantially the same height, and the rope head cover 7b and the rope head cover 7d are set at substantially the same height.

The compensating rod 8, the lower end of which is connected to the rope head cover 7, and the upper end of which is fixed to the beam 2a of the counterweight 2 by means of the spring member 10. Here, the compensation rod 8a is connected with the rope head cover 7a, the compensation rod 8b is connected with the rope head cover 7b, the compensation rod 8c is connected with the rope head cover 7c, and the compensation rod 8d is connected with the rope head cover 7d. In addition, by making the length dimension of the compensation rod 8a and the compensation rod 8c substantially the same, and the length dimension of the compensation rod 8b and the compensation rod 8d being substantially the same, the rope head cover 7a and the rope head cover 7c are located at substantially the same height, and the rope head cover 7b and the rope head cover 7d are located at approximately the same height.

As an example, the rope pressing jig 9 is provided with two rope pressing jigs, a lower rope pressing jig 9a and an upper rope pressing jig 9b. However, the present invention is not limited to this. The number of rope clamps is set according to the number of compensation ropes, etc. Preferably, two or more rope clamps are provided.

Here, the second ends of all compensating ropes are fixed by means of two rope clamps. If there are 5 compensating ropes, one rope clamping fixture fixes the second ends of the 2 compensating ropes, and the other rope clamping fixture fixes the second ends of the 3 compensating ropes. If there are 8 compensating ropes, one pressure rope The clamp fixes the second ends of the four compensating ropes, and another pressing rope clamp fixes the second ends of the four compensating ropes. In this example, since four compensating ropes are provided, the second end of the compensating rope 5a and the second end of the compensating rope 5c are fixed by the lower rope pressing jig 9a, and the compensating rope is fixed by the upper pressing rope jig 9b The second end of 5b and the second end of the compensation cord 5d.

Hereinafter, with reference to FIG. 4 , the rope pressing fixture 9 will be described in detail. Here, the structure of the upper side pressing rope jig 9b will be described as an example.

The upper rope clamp 9b includes a horizontal plate 91, a clamping plate 92, and fixing bolts 93 as fasteners.

The horizontal plate 91 is an elongated member and is formed of a metal plate. The horizontal plate 91 is provided orthogonal to the longitudinal direction (Z) of the compensation cord 5 . That is, the transverse plate 91 is arranged in the hoistway perpendicularly and laterally to the compensation rope 5 . The horizontal plate 91 has a predetermined lateral (horizontal direction X) width dimension. Preferably, the lateral width of the horizontal plate 91 is greater than its top and bottom heights, and its top and bottom heights are greater than its front and rear widths.

The clamping plate 92 is formed of a metal plate, and has a substantially hat-shaped horizontal cross-section. That is to say, the clamping plate 92 is roughly hat-shaped when viewed from the top. The clamping plate 92 has a front convex convex portion and two flat plate-shaped end portions respectively located on both sides of the convex portion. Shaped like a hat brim. Preferably, the lateral width of the clamping plate 92 is greater than its upper and lower heights. Preferably, the vertical height of the clamping plate 92 is substantially the same as the vertical height of the horizontal plate 91 .

The clamping plate 92 is disposed opposite to the horizontal plate 91 and is attached to the horizontal plate 91 . The crimping plate 92 is used to crimp the end of the second end portion of the compensation cord 5 in the left-right overlapping state and the adjoining portion of the second end portion of the compensation cord 5 . More specifically, the convex portion of the clamping plate 92 accommodates the ends of the second end portions that overlap left and right and the adjoining portions, and the ends on both sides are used for fixing bolts 93 to be described later to be fastened to the horizontal plate 91 .

The number of clamping plates 92 included in the rope pressing jig 9 is the same as the number of the compensation ropes 5 to be fixed, and here, the upper rope pressing jig 9b is provided with two, and the lower rope pressing jig 9a is provided with two.

Since the fixing bolts 93 are fixed on the left and right sides of the clamping plate 92 , the number of the fixing bolts 93 is twice that of the clamping plate 92 . The fasteners are not limited to fixing bolts as long as they are members that fix the clamping plate to the horizontal plate.

Furthermore, the position of the rope clamp 9 is limited by the adjacent compensation rod 8 or the adjacent compensation rope 5 . As shown in FIG. 4 , the horizontal plate 91 includes a fixing portion 911 facing the clamping plate 92 and an extending portion 912 extending on the left or right side of the fixing portion 911 . The extension 912 of the horizontal plate 91 of the upper rope pressing clamp 9b overlaps with the adjacent compensation rods, namely, the compensation rods 8a and 8c, so that the position of the upper rope pressing clamp 9b is affected by the compensation rods 8a and 8c. 8c limit. On the other hand, as shown in FIG. 3 , the extension of the lower rope pressing clamp 91 overlaps with the adjacent compensating ropes, that is, the compensating rope 5b and the compensating rope 5d. The position is limited by compensating rope 5b and compensating rope 5d.

The compensating rope 5 in this embodiment adopts a wedge-shaped assembly method for its end connecting structure. That is, the end portion of the compensation cord 5 is wound around the wedge 11 and folded back, and in this state, it is inserted into the insertion hole of the cord head cover together with the wedge 11 . Then, the ends of the folded compensation ropes 5 are sandwiched by the horizontal plate 91 and the clamping plate 92 in an overlapping state, and are fastened with the fixing bolts 93 to be clamped and fixed. In this way, since the end portions of the compensation cords 5 are sandwiched and fixed by the plate, the width dimension of the front-rear direction of the end portion connection structure of the compensation cords 5 can be suppressed. By repeating this procedure, the ends of the compensating rope 5a and the compensating rope 5c are fixed with the lower side pressing rope jig 9a, and the ends of the compensating rope 5b and the compensating rope 5d are fixed with the upper side pressing rope jig 9b. In addition, at this time, the extension of the horizontal plate 91 of the lower rope pressing jig 9a and the compensation rope 5b and the compensating rope 5d are arranged to overlap front and rear, and the extension of the horizontal plate 91 of the upper rope pressing jig 9b, the compensation rod 8a and the compensation rope The rods 8c are provided so as to overlap back and forth. In this way, the positions of the lower rope pressing jig 9a and the upper rope pressing jig 9b are restricted. Since the compensating rope 5 is formed by twisting the strands on the core wire, it has the property of rotating under the force in the tension direction. The rope does not rotate.

As described above, the elevator apparatus of the present invention includes a plurality of compensating ropes 5, the first ends of the compensating ropes 5 are connected to the car 1 in parallel, and the second ends of the compensating ropes 5 are connected to the pair of Weight 2, the middle part of each compensating rope 5 is folded back in the hoistway; a plurality of rope head covers 7 are respectively used for the winding part formed by winding the second end of each compensating rope 5 with the wedge-shaped piece 11 to be inserted together with the wedge-shaped piece 11 And a plurality of compensating rods 8, the lower end of each compensating rod 8 is connected with each rope head cover 7, the upper end of each compensating rod 8 is fixed to the beam of the counterweight 2, the elevator device is provided with a rope pressing fixture 9, and the rope pressing fixture 9 is used for For fixing the second end of the compensation rope 5 , the rope pressing jig 9 includes: a horizontal plate 91 provided perpendicular to the longitudinal direction of the compensation rope 5 ; The horizontal cross section of the clamping plate 92 is substantially hat-shaped, and the clamping plate 92 clamps the end of the second end of the compensation rope 5 in the left-right overlapping state and the adjacent portion of the second end of the compensation rope 5 adjacent to the winding portion.

With the above-described configuration, since the ends of the compensation cords 5 are sandwiched and fixed by the plate, it is possible to suppress the width dimension in the front-rear direction of the end portion connection structure of the compensation cords 5 compared to the conventional method of fixing with a cord clamp. . In addition, the diameter of the compensation cord 5 can be easily matched, and it is a structure with high versatility.

Moreover, in the present invention, the horizontal plate 91 is provided with: a fixed part 911 opposite to the clamping plate 92; The adjacent compensating ropes 5 overlap front and rear, thereby limiting the position of the rope pressing clamp 9 .

With the above-described configuration, it is possible to prevent the rotation of the compensation cord 5 having the property of being rotated when a force is applied in the tension direction.

Moreover, in the present invention, one rope pressing fixture 9 fixes the second ends of the plurality of compensation ropes 5 .

With the above-described configuration, the number of parts can be reduced, the number of the compensation cords 5 can be easily matched, and the configuration can be highly versatile.

Moreover, in the present invention, the elevator device is provided with at least two rope pressing clamps 9 which are arranged separately up and down, and the second ends of all the compensation ropes 5 are fixed by the at least two rope pressing clamps 9 .

By configuring as described above, the number of parts can be reduced.

The embodiments of the elevator apparatus of the present invention, including the functions and effects thereof, have been described above. 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-mentioned embodiment has been described in detail in order to explain the present invention clearly, but it is not necessarily limited to include all the structures 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. In addition, addition, deletion, and replacement of other structures can be performed to a part of the structures of the respective embodiments.

Claims (5)

1. An elevator apparatus comprising: a plurality of compensating ropes, the first ends of the compensating ropes are connected to a car in parallel, the second ends of the compensating ropes are connected to a counterweight in parallel, and each of the compensating ropes is connected to a counterweight. The middle part of the compensation rope is folded back in the hoistway; a plurality of rope head covers are respectively used for the winding part formed by winding the second end of each compensation rope with a wedge-shaped piece to be inserted together with the wedge-shaped piece; and a plurality of Compensation rods, the lower ends of the compensation rods are connected with the rope head covers, and the upper ends of the compensation rods are fixed to the beam of the counterweight, characterized in that: The elevator device further includes a rope pressing fixture for fixing the second end of the compensation rope, The rope pressing jig includes: a horizontal plate provided perpendicular to the longitudinal direction of the compensation rope; In the shape of a hat, the clamping plate clamps the end of the second end of the compensating rope in the left-right overlapping state and the abutting part of the second end of the compensating rope that is adjacent to the winding part . 2. The elevator apparatus according to claim 1, characterized in that, The horizontal plate is provided with: a fixing part opposite to the clamping plate; and an extension part extending on the left or right side of the fixing part, and the extension part is connected to the adjacent compensation rod or the adjacent compensating rod through the extension part. The compensation cords overlap front and rear, thereby limiting the position of the cord clamp. 3. The elevator apparatus according to claim 1, characterized in that, One of the cord clamps secures the second ends of the plurality of compensation cords. 4. The elevator apparatus according to claim 1, characterized in that, The elevator apparatus is provided with at least two of the rope pressing jigs provided vertically and apart, and the second ends of all the compensation ropes are fixed by the at least two rope pressing jigs. 5. The elevator apparatus according to claim 1, characterized in that, The elevator apparatus is provided with a plurality of fasteners for fixing the clamping plate to the transverse plate.

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