Steel ball compensation chain with high connection strength

Abstract

The utility model relates to the technical field of steel ball compensation chains, in particular to a steel ball compensation chain with high connection strength, which comprises a metal chain ring, a rubber spring used for protecting the metal chain ring is arranged on the surface of the metal chain ring, the rubber spring is of a spiral structure, a detachable counterweight component is mounted at the tail end of the metal chain ring, and the metal chain ring is connected with the detachable counterweight component. A connecting ring is arranged at the joint of the counterweight assembly and the metal chain ring; the rubber springs are wound outside the metal chain rings, the distance between the rubber springs is smaller than the chain ring diameter of the metal chain rings, the two groups of metal chain rings are elastically connected through the rubber springs, and each metal chain ring comprises a chain ring body, a zinc coating coated on the surface of the chain ring body and an outer wrapping layer wrapped outside the zinc coating. According to the compensation chain, after the rubber spring is installed outside the metal chain ring, the metal chain ring can be protected, the rubber spring has high abrasion resistance, and therefore the situation that the performance of the compensation chain is reduced due to abrasion of the outer wrapping layer can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of steel ball compensation chains, in particular to a steel ball compensation chain with high connection strength. Background Art

[0002] The elevator balance compensation chain is an important component of the elevator system. Its main function is to balance the weight of the elevator car and the counterweight, reduce the load of the traction machine, and improve the stability and safety of the elevator operation.

[0003] At present, most elevator balance compensation chains are equipped with a PVC outer layer on the outside of the chain ring to protect the internal chain ring;

[0004] For example, the existing public technical solution, announcement number CN204980724U discloses an elevator balance compensation chain with steel balls, including chain rings, galvanized layer, PVC outer layer and steel balls, and the steel balls are evenly distributed in the PVC outer layer. The environmentally friendly PVC outer layer is mixed with steel balls, which has good cold resistance and weather resistance, and the environmental protection function of the elevator is improved.

[0005] When the above technical solution is actually implemented, since the steel balls are mixed inside the PVC outer layer, when the PVC outer layer is worn, the internal steel balls will be exposed, affecting the functionality of the elevator balance compensation chain. Summary of the invention

[0006] The purpose of the utility model is to provide a steel ball compensation chain with high connection strength, which can be installed on the outside of the metal chain ring through a rubber spring to protect the metal chain ring. The rubber spring has strong wear resistance, thereby avoiding the reduction of compensation chain performance due to wear of the outer layer, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the utility model provides the following technical solution: a steel ball compensation chain with high connection strength, comprising a metal chain ring, a rubber spring for protecting the metal chain ring is arranged on the surface of the metal chain ring, and the rubber spring is a spiral structure, a detachable counterweight assembly is installed at the end of the metal chain ring, and a connecting ring is arranged at the connection between the counterweight assembly and the metal chain ring;

[0008] The rubber springs are wound around the outside of the metal chain rings, and the distance between the rubber springs is smaller than the chain ring diameter of the metal chain rings, and the two groups of metal chain rings are elastically connected by the rubber springs;

[0009] The metal chain link comprises a chain link body, a galvanized layer coated on the surface of the chain link body, and an outer layer wrapped around the galvanized layer.

[0010] Preferably, the counterweight assembly comprises a counterweight block, four groups of mounting holes are provided inside the counterweight block, and a through hole is provided in the middle of the mounting holes.

[0011] Preferably, the through hole passes through the interior of the counterweight block, and a fixing screw is provided inside the through hole.

[0012] Preferably, a fixing nut is threadedly connected to the end of the fixing screw, and an anti-slip rubber gasket is provided between the fixing nut and the counterweight.

[0013] Preferably, the connecting ring is a U-shaped structure, and the end of the connecting ring passes through the interior of the mounting hole, and a positioning hole matching the through hole is opened inside the connecting ring.

[0014] Preferably, the middle portion of the connecting ring is inserted into the interior of the metal chain ring, and the metal chain ring is connected to the counterweight block via the connecting ring.

[0015] Preferably, a rotating handle is welded to one end of the fixing screw away from the fixing nut, and an arc-shaped protrusion is provided on the surface of the rotating handle.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The rubber spring is spirally wound on the side wall of the metal chain ring. When two sets of metal chain rings connected by one metal chain ring are squeezed inward, they can only squeeze the rubber springs against each other, which can avoid the noise caused by the metal chain rings touching each other. At the same time, since the rubber spring is installed outside the metal chain ring, it can protect the metal chain ring. The rubber spring has strong wear resistance, which can avoid the reduction of compensation chain performance due to wear of the outer layer.

[0018] 2. The counterweight assembly can be freely assembled with the metal chain ring, thereby increasing the weight of the compensation chain and facilitating use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is the overall structural view of the utility model;

[0021] Figure 2 For the utility model Figure 1 A magnified view of middle;

[0022] Figure 3 It is a schematic structural diagram of the metal chain ring of the utility model;

[0023] Figure 4 It is a half-section structural schematic diagram of the counterweight block of the utility model.

[0024] Description of reference numerals:

[0025] 1. Metal chain link; 101. Chain link body; 102. Galvanized layer; 103. Outer layer; 2. Rubber spring; 3. Counterweight assembly; 301. Counterweight block; 302. Mounting hole; 303. Perforation; 304. Fixing screw; 305. Fixing nut; 4. Connecting ring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The utility model provides a technical solution:

[0028] See also Figures 1 to 3 A steel ball compensation chain with high connection strength comprises a metal chain link 1, a rubber spring 2 for protecting the metal chain link 1 is arranged on the surface of the metal chain link 1, and the rubber spring 2 is a spiral structure, a detachable counterweight component 3 is installed at the end of the metal chain link 1, and a connecting ring 4 is arranged at the connection between the counterweight component 3 and the metal chain link 1;

[0029] The rubber springs 2 are wound around the outside of the metal chain rings 1, and the distance between the rubber springs 2 is smaller than the chain ring diameter of the metal chain rings 1. The two sets of metal chain rings 1 are elastically connected by the rubber springs 2;

[0030] The metal link 1 comprises a link body 101 , a galvanized layer 102 coated on the surface of the link body 101 , and an outer layer 103 wrapped around the galvanized layer 102 .

[0031] By adopting the above technical solution, after the metal chain links 1 are assembled into a compensation chain, a rubber spring 2 is added to each group of metal chain links 1. The rubber spring 2 is spirally wound on the side wall of the metal chain link 1. A group of rubber springs 2 is wound around the two side walls of the metal chain link 1, and the distance between the two groups of rubber springs 2 is smaller than the side wall chain diameter of the metal chain link 1. Therefore, when the two groups of metal chain links 1 connected by one metal chain link 1 are squeezed inward, they can only squeeze the rubber springs 2 against each other, thereby avoiding the noise generated by the mutual contact between the metal chain links 1. At the same time, since the rubber spring 2 is installed on the outside of the metal chain link 1, the metal chain link 1 can be protected. The rubber spring 2 has strong wear resistance, thereby avoiding the reduction of compensation chain performance due to wear of the outer layer 103. The outer layer 103 is composed of PVC, in which some steel balls are added.

[0032] Specifically, Figure 4 As shown, the counterweight assembly 3 includes a counterweight block 301, four groups of mounting holes 302 are provided inside the counterweight block 301, and a through hole 303 is provided in the middle of the mounting hole 302, the through hole 303 passes through the inside of the counterweight block 301, a fixing screw 304 is passed through the through hole 303, the end of the fixing screw 304 is threadedly connected with a fixing nut 305, and a non-slip rubber gasket is provided between the fixing nut 305 and the counterweight block 301, the connecting ring 4 is a U-shaped structure, and the end of the connecting ring 4 passes through the inside of the mounting hole 302, a positioning hole matched with the through hole 303 is provided in the inside of the connecting ring 4, the middle part of the connecting ring 4 is passed through the inside of the metal chain ring 1, and the metal chain ring 1 is connected to the counterweight block 301 through the connecting ring 4, a rotating handle is welded to the end of the fixing screw 304 away from the fixing nut 305, and an arc-shaped protrusion is provided on the surface of the rotating handle.

[0033] By adopting the above technical scheme, the counterweight assembly 3 can be freely combined with the metal chain ring 1 as needed. When the counterweight assembly 3 is needed, the connecting ring 4 is passed through the metal chain ring 1 and inserted into the mounting hole 302 of the counterweight block 301, and the positioning hole is adapted to the through hole 303. The fixing screw 304 is thereby passed through the counterweight block 301, and passes through the positioning hole and the through hole 303 in turn, and comes out from the other end. Subsequently, the fixing nut 305 is installed on the fixing screw 304. Since the surface of the rotating handle of the fixing screw 304 is provided with an arc-shaped protrusion, the friction can be increased to facilitate the rotation of the rotating handle, thereby driving the fixing screw 304 to rotate. The overall length of the fixing screw 304 is greater than the diameter of the counterweight block 301, so that the installation of the counterweight block 301 and the metal chain ring 1 can be realized.

[0034] Working principle: After the metal chain links 1 are assembled into a compensation chain, a rubber spring 2 is added to each group of metal chain links 1. The rubber spring 2 is spirally wound on the side wall of the metal chain link 1. A group of rubber springs 2 is wound around the two side walls of the metal chain link 1, and the distance between the two groups of rubber springs 2 is smaller than the diameter of the side wall chain link of the metal chain link 1. Therefore, when the two groups of metal chain links 1 connected by one metal chain link 1 are squeezed inward, they can only squeeze the rubber springs 2 against each other, which can avoid the noise caused by the mutual contact between the metal chain links 1. At the same time, since the rubber spring 2 is installed outside the metal chain link 1, it can protect the metal chain link 1. The rubber spring 2 has strong wear resistance, which can avoid the compensation caused by the wear of the outer layer 103. The chain performance is reduced, the outer layer 103 is composed of PVC, in which some steel balls are added. After the connecting ring 4 passes through the metal chain ring 1, it is inserted into the mounting hole 302 of the counterweight 301, and the positioning hole is adapted to the through hole 303. Thus, the fixing screw 304 is passed through the counterweight 301, and passes through the positioning hole and the through hole 303 in turn, and comes out from the other end, and then the fixing nut 305 is installed on the fixing screw 304. Since the surface of the rotating handle of the fixing screw 304 is provided with an arc-shaped protrusion, the friction can be increased to facilitate the rotation of the rotating handle, thereby driving the fixing screw 304 to rotate. The overall length of the fixing screw 304 is greater than the diameter of the counterweight 301, so the installation of the counterweight 301 and the metal chain ring 1 can be realized.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A steel ball compensation chain with high connection strength, comprising a metal chain link (1), characterized in that: The surface of the metal chain ring (1) is provided with a rubber spring (2) for protecting the metal chain ring (1), and the rubber spring (2) is a spiral structure. A detachable counterweight component (3) is installed at the end of the metal chain ring (1), and a connecting ring (4) is provided at the connection between the counterweight component (3) and the metal chain ring (1); The rubber spring (2) is wound around the outside of the metal chain ring (1), and the distance between the rubber springs (2) is smaller than the chain ring diameter of the metal chain ring (1), and the two groups of metal chain rings (1) are elastically connected via the rubber spring (2); The metal chain link (1) comprises a chain link body (101), a galvanized layer (102) coated on the surface of the chain link body (101), and an outer layer (103) wrapped around the outside of the galvanized layer (102).

2. A steel ball compensation chain with high connection strength according to claim 1, characterized in that: The counterweight assembly (3) comprises a counterweight block (301), four groups of mounting holes (302) are provided inside the counterweight block (301), and a through hole (303) is provided in the middle of the mounting holes (302).

3. A steel ball compensation chain with high connection strength according to claim 2, characterized in that: The through hole (303) passes through the interior of the counterweight (301), and a fixing screw (304) is inserted into the interior of the through hole (303).

4. A steel ball compensation chain with high connection strength according to claim 3, characterized in that: The end of the fixing screw rod (304) is threadedly connected to a fixing nut (305), and an anti-slip rubber gasket is provided between the fixing nut (305) and the counterweight (301).

5. A steel ball compensation chain with high connection strength according to claim 4, characterized in that: The connecting ring (4) is a U-shaped structure, and the end of the connecting ring (4) passes through the interior of the mounting hole (302). A positioning hole matching the through hole (303) is provided inside the connecting ring (4).

6. A steel ball compensation chain with high connection strength according to claim 5, characterized in that: The middle portion of the connecting ring (4) is inserted into the interior of the metal chain ring (1), and the metal chain ring (1) is connected to the counterweight (301) via the connecting ring (4).

7. A steel ball compensation chain with high connection strength according to claim 6, characterized in that: A rotating handle is welded to one end of the fixing screw rod (304) away from the fixing nut (305), and an arc-shaped protrusion is provided on the surface of the rotating handle.

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