CN220618038U - Elevator chain connecting piece that stability is strong - Google Patents

Abstract

The utility model discloses an elevator chain connector with strong stability, which belongs to the field of elevator compensation chains. The elevator chain connector with strong stability includes connecting blocks. The number of the connecting blocks is two and they are symmetrical to each other. The two connecting blocks are symmetrical to each other. Support bearings are installed horizontally on the lower surface of the connecting block, and rotating shafts are vertically inserted into the inner sides of the two supporting bearings. One end of the two rotating shafts extends out of the corresponding supporting bearings and is vertically provided with flanges. The two methods U-shaped bolts are inserted on the side of the flange plate away from the corresponding connecting block. Support mechanisms are also provided on one side of the two flange plates. Both U-shaped bolts extend to the other side of the corresponding flange plate and are installed with a third A fastening nut and a lock chain are provided between the outer sides of the two U-shaped bolts, which can reduce the sliding displacement of the compensation chain at the connection, reduce the wear and tear of the compensation chain at the connection, and help improve the elevator compensation. Stability at chain junctions.

Description

A highly stable elevator chain connector

Technical field

The utility model relates to the field of elevator compensation chains, and more specifically, to an elevator chain connector with strong stability.

Background technique

The elevator compensation chain is installed at the bottom of the car, which can balance the weight difference caused by the traction wire rope when the elevator is running. In order to facilitate the removal of the compensation chain, a mounting frame is generally welded or bolted to the bottom of the car, and a section of the compensation chain is After the steel ring is inserted into the mounting frame, tighten it with a latch to lock it;

After a patent search, it was found that the Chinese patent with publication number CN219009630U discloses an elevator compensation chain installation frame, including an elevator car, a counterweight block, a connecting block, a straight tube, a two-way threaded rod, a threaded sleeve, a tie rod, a sliding hole, and a vertical plate. , fixed block, latch, cavity, slide plate, telescopic rod, return spring, push block, inclined block, fixed ring and compensation chain body. Although it is driven by the combination of the rotating rod, the two-way threaded rod and the threaded sleeve, the latch is inserted to the groove, under the action of the return spring, the inclined block is inserted into the slot, thereby limiting and fixing the latch, preventing the latch from loosening and falling off, and improving the fixing effect;

However, when the above-mentioned patent connects the elevator and the compensation chain, the return spring pushes the fixed latch of the inclined block to cooperate with the two pull rods and the vertical plate to cover the compensation chain. The compensation chain shakes due to inertia as the elevator runs, and slides and rubs on the two pull rods, causing The connection compensation chain wears out, which leads to the problem of decreased stability of the elevator compensation chain connection. For this reason, we propose an elevator chain connection with strong stability.

Utility model content

Technical issues to be solved

In view of the problems existing in the prior art, the purpose of this utility model is to provide an elevator chain connector with strong stability, which can reduce the sliding displacement of the compensation chain at the connection and reduce the occurrence of the compensation chain at the connection. The degree of wear will help improve the stability of the elevator compensation chain connection.

Technical solutions

In order to solve the above problems, the present utility model adopts the following technical solutions.

An elevator chain connection with strong stability includes a connecting block. The number of the connecting blocks is two and they are symmetrical to each other. Support bearings are installed horizontally on the lower surfaces of the two connecting blocks. The two supporting bearings There are rotating shafts inserted vertically on the inside of the two rotating shafts. One end of the two rotating shafts extends out of the corresponding support bearing and is vertically provided with flanges. The two flanges are inserted on the side away from the corresponding connecting block. U-shaped bolts, one side of the two flanges is also provided with a support mechanism, both of the two U-shaped bolts extend to the other side of the corresponding flange, and both are equipped with first fastening nuts. There is a chain between the outer sides of the U-shaped bolts. Pass one end of the two U-shaped bolts through the two ends of the chain respectively. You can also increase the number of chains as needed, and then insert the two U-shaped bolts back. First tighten Fasten the nut to match the corresponding flange to lock the U-shaped bolt to complete the installation of the compensation chain. When the compensation chain swings due to inertia, pull the corresponding U-shaped bolt to drive the corresponding rotating shaft and flange to rotate at a certain angle around the support bearing, reducing the size of the compensation chain. The sliding displacement that occurs at the connection reduces the degree of wear that occurs at the connection compensation chain, which is beneficial to improving the stability of the elevator compensation chain connection.

Further, the support mechanism includes a circular array of hollow cylinders distributed on one side of the flange. The interiors of the two hollow cylinders are truncated cone-shaped cavities that open toward the corresponding connecting blocks. The interiors of the two hollow cylinders are evenly spaced. Steel balls are provided, and the upper surfaces of the two steel balls extend out of the corresponding hollow cylinder and stick to the lower surface of the corresponding connecting block. When the flange rotates, the corresponding hollow cylinder is driven to rotate, and the steel balls in the hollow cylinder stick to the corresponding method. The rolling side of the flange plate can support the flange plate when it is pressed downward against the chain, reducing the deformation of the flange plate due to downward impact on the chain, and further improving the stability of the connection.

Further, one end of the two rotating shafts is provided with a limit groove, and the inside of the two limit grooves is provided with threads and a second fastening nut is threadedly installed, and the second fastening nut in the limit groove is used. The nut presses the corresponding flange plate and supports the flange plate in the axial direction to fix the flange plate on the rotating shaft.

Furthermore, two flanges are integrally installed with two protrusions on one side close to the corresponding connection block. The protrusions are annular structures and are set on the outside of the corresponding U-shaped bolts. Increase the thickness of the connection between the corresponding flange and the U-shaped bolt to increase the strength of the U-shaped bolt.

Furthermore, the sides of the two flanges close to the corresponding connecting blocks also have a plurality of wing plates distributed along the circumferential array, and one side of the wing plates is radially attached to the outside of the corresponding rotating shaft, with multiple wings. The plate increases the thickness of the corresponding flange and reduces the degree of deformation of the flange caused by the extrusion of the chain.

Further, clamps are provided between the upper edges of adjacent wing plates.

beneficial effect

Compared with the existing technology, the advantages of this utility model are:

(1) In this solution, turn the first fastening nut forward to disengage the corresponding U-shaped bolt, pull out the two U-shaped bolts by hand, and pass one end of the two U-shaped bolts through the two ends of the chain respectively. You can also add more chains as needed. number, and then insert the two U-shaped bolts back. The first fastening nut matches the corresponding flange to lock the U-shaped bolts to complete the installation of the compensation chain. When the compensation chain swings due to inertia, pull the corresponding U-shaped bolts to drive the corresponding The rotating shaft and flange rotate at a certain angle around the support bearing, which reduces the sliding displacement of the compensation chain at the connection, reduces the wear and tear of the compensation chain at the connection, and helps improve the stability of the connection of the elevator compensation chain.

(2) When the flange of this solution rotates, it drives the corresponding hollow cylinder to rotate. The steel balls in the hollow cylinder roll against the side of the corresponding flange, so that the hollow cylinder and the steel balls can support the corresponding flange vertically downward, and can be used in the method. The flange plate is supported when it is pressed downward against the chain, which reduces the deformation of the flange plate due to downward impact on the chain and further improves the stability of the connection.

Description of the drawings

Figure 1 is a schematic structural diagram of the front view of the utility model;

Figure 2 is a schematic cross-sectional structural diagram of the utility model;

Figure 3 is an enlarged structural schematic diagram of position A in Figure 1 of the present invention;

Figure 4 is an enlarged structural schematic diagram of position B in Figure 2 of the present invention.

Description of numbers in the figure:

1. Connecting block; 2. Support bearing; 3. Rotating shaft; 4. Flange; 5. U-shaped bolt; 6. First fastening nut; 7. Chain; 8. Hollow cylinder; 9. Steel ball; 10. Limit Slot; 11. Second fastening nut; 12. Protrusion; 13. Wing plate; 14. Clamp.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only part of the embodiments of the present utility model, not all implementations. For example, based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

Example:

Please refer to Figure 1-4. A highly stable elevator chain connection includes a connecting block 1. The number of the connecting blocks 1 is two and they are symmetrical to each other. The lower surfaces of the two connecting blocks 1 are equipped with support bearings 2 horizontally. , the upper ends of the two support bearings 2 are embedded in the lower surface of the corresponding connection block 1 and the outsides are welded to the inside of the corresponding connection block 1. The insides of the two support bearings 2 are vertically inserted with rotating shafts 3, and the two rotating shafts 3 One end extends out of the corresponding support bearing 2 and is vertically provided with a flange 4. Both flanges 4 are annular and the middle holes are penetrated by one end of the corresponding rotating shaft 3. The other ends of the two rotating shafts 3 are welded. Corresponding to the inner side of the support bearing 2, U-shaped bolts 5 are inserted on the sides of the two flanges 4 away from the corresponding connecting block 1. Support mechanisms are also provided on one side of the two flanges 4. The two U-shaped bolts 5 Both extend to the other side of the corresponding flange 4 and are equipped with first fastening nuts 6. The insides of the first fastening nuts 6 are threadedly connected to one end of the corresponding U-shaped bolts 5, and the outsides of the two U-shaped bolts 5 There is a chain 7 between them. Both ends of the chain 7 are sleeved on the outside of the corresponding U-shaped bolt 5. First, the upper surface of the connecting block 1 is welded to the lower surface of the elevator car. When installing the compensation chain, rotate the second Fasten the nut 6, disengage the corresponding U-shaped bolt 5, pull out the two U-shaped bolts 5 by hand, and pass one end of the two U-shaped bolts 5 through the two ends of the chain 7 respectively. You can also add more holes to the chain 7 as needed. quantity, and then insert the two U-shaped bolts 5 back onto the corresponding flange 4. Put the first fastening nuts 6 on both ends of the two U-shaped bolts 5, and reverse the first fastening nuts 6 to match the corresponding method. The flange 4 locks the U-shaped bolt 5 to complete the installation of the compensation chain. When the compensation chain swings due to inertia due to the movement of the elevator, the corresponding U-shaped bolt 5 is pulled, driving the corresponding rotating shaft 3 and the flange 4 to rotate at a certain angle around the support bearing 2, reducing the The small sliding displacement of the compensation chain at the connection reduces the wear degree of the connection compensation chain, which is beneficial to improving the stability of the elevator compensation chain connection.

Referring to Figures 2 and 4, the support mechanism includes a circular array of hollow cylinders 8 distributed on one side of the flange 4. The interiors of the two hollow cylinders 8 are both truncated cone-shaped cavities that open toward the corresponding connecting block 1. The two hollow cylinders 8 The lower ends of the two hollow cylinders 8 are welded to one side of the corresponding flange 4, and steel balls 9 are provided inside the two hollow cylinders 8. The upper surfaces of the two steel balls 9 extend out of the corresponding hollow cylinder 8 and are attached to the corresponding connecting block 1. On the lower surface, when the flange 4 rotates, it drives the corresponding hollow cylinder 8 to rotate, and the steel balls 9 in the hollow cylinder 8 roll against the side of the corresponding flange 4, so that the hollow cylinder 8 and the steel balls 9 can support the corresponding method vertically downward. The flange plate 4 can support the flange plate 4 when it is pressed downward against the chain 7, thereby reducing the deformation of the flange plate 4 due to downward impact on the chain 7 and further improving the stability of the connection.

Referring to Figures 1 and 2, one end of the two rotating shafts 3 is provided with a limit slot 10. The two limit slots 10 are provided with threads on the inside and are threaded with a second fastening nut 11. The second fastening nut 11 is threaded. The insides of the corresponding flange 4 are all threadedly connected to the inside of the corresponding limiting groove 10. Use the second fastening nut 11 in the limiting groove 10 to press the corresponding flange 4 and support the flange 4 in the axial direction so that the flange 4 It is fixed on the rotating shaft 3. On the contrary, unscrew the second fastening nut 11, release the locking state of the flange 4, and then it can be removed.

Referring to Figures 1 and 3, two flanges 4 are integrally installed with two protrusions 12 on one side close to the corresponding connection block 1. The protrusions 12 are annular structures and are set on the corresponding U-shaped bolts 5. Externally, the lower surfaces of the protrusions 12 are welded to the side of the corresponding flange 4, and the upper surfaces are close to the lower surface of the first fastening nut 6. Use the protrusions 12 to enlarge the corresponding flange 4 and U-shaped bolts. 5 The thickness of the connection increases the strength of the supporting U-shaped bolt 5 .

Referring to Figures 1 and 3, the sides of the two flanges 4 close to the corresponding connecting block 1 also have a plurality of wing plates 13 distributed along the circumferential array. One side of the wing plates 13 is radially attached to the outside of the corresponding rotating shaft 3. , and the lower surfaces are vertically welded to one side of the corresponding flange 4. Multiple wing plates 13 are used to increase the thickness of the corresponding flange 4 and reduce the degree of deformation of the flange 4 caused by the extrusion of the chain.

Referring to Figures 2 and 4, clamps 14 are provided between the upper edges of adjacent wing plates 13. The clamps 14 are set on the outside of the corresponding rotating shaft 3, and the upper edges of the corresponding wing plates 13 are tightened with the clamps 14. , so that it is close to the outside of the corresponding rotating shaft 3. Under the action of friction, the wing plate 13 can tighten the flange 4 upward and remove the load of the chain 7 acting on the flange 4.

Working principle: When installing the compensation chain, turn the first fastening nut 6 forward to disengage the corresponding U-shaped bolt 5, pull out the two U-shaped bolts 5 by hand, and pass one end of the two U-shaped bolts 5 through the lock chain 7 respectively. At both ends, you can also increase the number of chains 7 as needed, and then insert the two U-shaped bolts 5 back onto the corresponding flange 4. Put the first fastening nuts 6 on both ends of the two U-shaped bolts 5, and vice versa. Turn the first fastening nut 6 to match the corresponding flange 4 to lock the U-shaped bolt 5 to complete the installation of the compensation chain.

When the compensation chain swings due to inertia due to the movement of the elevator, the corresponding U-shaped bolt 5 is pulled, driving the corresponding rotating shaft 3 and flange 4 to rotate around the support bearing 2 at a certain angle, reducing the sliding displacement of the compensation chain at the connection and reducing the compensation of the connection. The degree of wear occurring at the chain is conducive to improving the stability of the elevator compensation chain connection.

When the flange 4 rotates, it drives the corresponding hollow cylinder 8 to rotate, and the steel balls 9 in the hollow cylinder 8 roll against the side of the corresponding flange 4, so that the hollow cylinder 8 and the steel balls 9 can support the corresponding flange 4 vertically downwards. , can support the flange 4 when it is pressed downward against the chain 7, thereby reducing the deformation of the flange 4 due to downward impact on the chain 7, and further improving the stability of the connection.

The above are only preferred embodiments of the present invention; however, the protection scope of the present invention is not limited thereto. Any person familiar with the technical field who is familiar with the technical field shall make equivalent substitutions or changes based on the technical solutions and improvement concepts of the present utility model within the technical scope disclosed by the present utility model, and shall be covered by the protection scope of the present utility model.

Claims (6)

1. An elevator chain connector with strong stability, including a connecting block (1), characterized in that: the number of the connecting blocks (1) is two and they are symmetrical to each other, and the two connecting blocks (1) are Support bearings (2) are installed horizontally on the lower surface, and rotating shafts (3) are vertically inserted inside the two supporting bearings (2). Corresponding support bearings extend from one end of the two rotating shafts (3). (2) Flanges (4) are installed vertically inside, and U-shaped bolts (5) are inserted into the sides of the two flanges (4) away from the corresponding connecting blocks (1). One side of the flange (4) is also provided with a support mechanism, and the two U-shaped bolts (5) extend to the other side of the corresponding flange (4) and are both equipped with first fastening nuts (6). , a chain (7) is provided between the outer sides of the two U-shaped bolts (5). 2. An elevator chain connector with strong stability according to claim 1, characterized in that: the support mechanism includes a circular array of hollow cylinders (8) distributed on one side of the flange (4), two The interiors of the hollow cylinders (8) are all truncated cone-shaped cavities with openings facing the corresponding connecting blocks (1). Steel balls (9) are provided inside the two hollow cylinders (8). The two steel balls (9) ) are extended out of the interior of the corresponding hollow cylinder (8) and are attached to the lower surface of the corresponding connecting block (1). 3. An elevator chain connector with strong stability according to claim 1, characterized in that: one end of the two rotating shafts (3) is provided with a limiting slot (10), and the two limiting slots are The inner sides of (10) are all provided with threads and are threaded with second fastening nuts (11). 4. An elevator chain connector with strong stability according to claim 1, characterized in that: two flanges (4) are integrally installed on one side close to the corresponding connecting block (1). The protrusions (12) are all in the form of annular structures and are sleeved on the outside of the corresponding U-shaped bolts (5). 5. An elevator chain connector with strong stability according to claim 1, characterized in that: both flanges (4) have a surface close to the corresponding connecting block (1) and are distributed along a circumferential array. There are a plurality of wing plates (13), one side of the wing plate (13) is radially attached to the outside of the corresponding rotating shaft (3). 6. An elevator chain connector with strong stability according to claim 5, characterized in that clamps (14) are provided between the upper edges of adjacent wing plates (13).