Protective assembly of balancer and balancer

Abstract

The utility model discloses a protection assembly of a balancer and a balancer, and relates to the balancer technology field, the protection assembly comprises a protection seat and a plurality of rollers, one side of the protection seat is installed on a housing; the rollers extend in the first direction, are connected to the side, away from the shell, of the protection base in a rolling mode through first rotating shafts arranged in the first direction, and are arranged in the second direction at intervals. A through groove allowing a steel rope to penetrate through is formed between any two adjacent rollers, a rope penetrating channel allowing the steel rope to penetrate through is formed in the position, corresponding to the through groove, of the protection base, the rope penetrating channel communicates with the through groove, and the two ends, in the first direction, of each through groove are each provided with two rolling wheels. The rollers are connected to the side, away from the shell, of the protection base in a rolling mode through second rotating shafts arranged in the second direction, and the rollers and the rollers can abut against the steel rope. The steel rope can be in rolling fit with the roller or the roller, abrasion caused by contact between the steel rope and the shell is avoided, the service life of the balancer is prolonged, and resistance of the motor is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of balancers, in particular to a protection component of a balancer and a balancer. Background Art

[0002] Balancers are mechanical devices used to suspend and lift heavy objects, and are widely used in industrial production, logistics handling, construction and other fields. They are usually composed of a housing, a motor, a reducer, a tower pulley, a steel rope, a hook and other components. The tower pulley and other components are usually set inside the housing. The working principle of the balancer is to drive the reducer through the motor, and then drive the tower pulley to rotate, and the lifting and lowering of the heavy object is achieved by the extension and shortening of the steel rope. During use, the operator hangs the object on the hook of the balancer and controls the forward and reverse rotation of the motor to achieve the lifting and lowering of the object.

[0003] At present, the steel rope of the balancer is in direct contact with the outer casing during the extension or shortening process. Long-term friction will cause wear of the steel rope and the outer casing, shortening the service life of the balancer. Moreover, due to the large friction between the steel rope and the outer casing, the resistance of the motor may increase during operation, affecting the smoothness of the balancer operation. Utility Model Content

[0004] The main purpose of the utility model is to propose a protective component and a balancer for a balancer, aiming to solve the technical problems in the prior art that the steel rope of the balancer directly contacts the outer casing during the extension or shortening process, and long-term friction will cause wear of the steel rope and the outer casing, shortening the service life of the balancer; and because the friction between the steel rope and the outer casing is large, the resistance of the motor may be increased during operation, affecting the smoothness of the balancer operation.

[0005] To achieve the above-mentioned purpose, the utility model provides a protection component of the balancer, a tower wheel arranged in the shell of the balancer is connected with a hook through a steel rope, the protection component is arranged between the tower wheel and the hook, the protection component comprises a protection seat and a plurality of rollers, one side of the protection seat is installed on the shell; each of the rollers extends along a first direction, and each of the rollers is rotatably connected to the side of the protection seat away from the shell through a first rotating shaft arranged along the first direction, and the plurality of rollers are arranged at intervals along a second direction, and the first direction and the second direction are perpendicular to each other; a through groove for the steel rope to pass through is formed between any two adjacent rollers, a rope threading channel for the steel rope to pass through is opened at a position of the protection seat corresponding to the through groove, and the rope threading channel is connected to the through groove, and two rollers are respectively arranged at both ends of each of the through grooves along the first direction, and each of the rollers is rotatably connected to the side of the protection seat away from the shell through a second rotating shaft arranged along the second direction, and each of the rollers and each of the rollers can abut against the steel rope.

[0006] In one embodiment, the number of the rollers is two. Four mounting ears are formed on the side of the protective seat facing away from the cone pulley. Each mounting ear extends towards the hook. The four mounting ears are arranged in an array in the first direction and the second direction. A roller is arranged between two mounting ears spaced apart in the first direction, and two mounting ears spaced apart in the first direction are respectively connected to two ends of the first rotating shaft. The roller is sleeved on the first rotating shaft; a roller is arranged between two mounting ears spaced apart in the second direction, and two mounting ears spaced apart in the second direction are respectively connected to two ends of the second rotating shaft. The roller is sleeved on the second rotating shaft.

[0007] In one embodiment, the first rotating shaft is connected to the mounting ear near the protective seat, and the second rotating shaft is connected to the mounting ear far from the protective seat, so that the first rotating shaft and the second rotating shaft are arranged staggeredly.

[0008] In one embodiment, two ends of the first rotating shaft are respectively fastened to two mounting ears spaced apart in the first direction, and the roller is rotatably sleeved on the first rotating shaft; two ends of the second rotating shaft are respectively fastened to two mounting ears spaced apart in the second direction, and the roller is rotatably sleeved on the second rotating shaft.

[0009] In one embodiment, threads are provided at two ends of the first rotating shaft and two ends of the second rotating shaft. Two ends of the first rotating shaft respectively extend out of two mounting ears spaced apart in the first direction and are respectively in threaded cooperation with two first nuts; two ends of the second rotating shaft respectively extend out of two mounting ears spaced apart in the second direction and are in threaded cooperation with two second nuts.

[0010] In one embodiment, two ends of each roller in the first direction are respectively rotatably sleeved on the first rotating shaft through two deep groove ball bearings.

[0011] In one embodiment, a gap is formed between each deep groove ball bearing and the mounting ear close to it, and the size of the gap is smaller than the outer diameter of the steel rope.

[0012] In one embodiment, a washer located in the gap is provided between each deep groove ball bearing and the mounting ear close to it.

[0013] In one embodiment, both the roller and the roller are polyethylene rollers.

[0014] The present utility model also proposes a balancer, which is applied with the above-mentioned protective component.

[0015] The protective component and balancer of the balancer proposed by the present utility model are configured such that two rollers are respectively provided at both ends of the through groove formed by any two adjacent rollers, and the two rollers and the two rollers together enclose the periphery of the through groove. When the hook-connected object is in use, the steel rope passes through the through groove, and when the steel rope swings at different angles under the drive of the object, it can abut against one of the rollers or the rollers around the through groove, and can rollingly cooperate with the roller or the roller with which it abuts when the steel rope elongates or shortens. This allows the steel rope to be connected to the object at multiple angles, preventing the steel rope from directly contacting the outer shell of the balancer when it elongates or shortens, thus protecting the outer shell of the balancer and the steel rope, effectively extending the service life of the balancer, and significantly reducing the friction between the steel rope and the outer shell, reducing the resistance of the motor, and ensuring smooth operation of the balancer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present utility model, and those of ordinary skill in the art can obtain other drawings based on the structures shown in these drawings without creative efforts.

[0017] Figure 1 FIG. 9 is a front view structural schematic diagram of an embodiment of the balancer provided by the present utility model;

[0018] Figure 2 FIG. 13 is a side view structural schematic diagram of an embodiment of the balancer provided by the present utility model;

[0019] Figure 3 FIG. 17 is a bottom view structural schematic diagram of an embodiment of the protective component of the balancer provided by the present utility model;

[0020] Figure 4 FIG. 21 is a cross-sectional structural schematic diagram of an embodiment of the protective component of the balancer provided by the present utility model.

[0021] Explanation of the reference numerals in the drawings:

[0022] 10. Protective seat; 11. Mounting ear; 20. Roller; 21. Roller; 22. Through groove; 23. First rotating shaft; 24. Second rotating shaft; 25. First nut; 26. Second nut; 27. Deep groove ball bearing; 28. Washer; 30. Outer shell; 31. Steel rope; 32. Sheave; 33. Hook.

[0023] The realization of the objectives, functional features, and advantages of the present utility model will be further described in conjunction with the embodiments and with reference to the drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0025] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0026] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B at the same time. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0027] The descriptions of directions such as "front", "back", "left", "right", etc. in the present utility model are based on Figure 3 the directions shown, and are only used to explain the relative positional relationship between components in Figure 3 the posture shown. If the specific posture changes, the directional indications will also change accordingly.

[0028] Currently, the steel rope of the balancer directly contacts the outer shell during the elongation or shortening process. Long-term friction will cause wear of the steel rope and the outer shell, shortening the service life of the balancer; and due to the large friction force between the steel rope and the outer shell, the resistance of the motor may be increased during operation, affecting the smoothness of the operation.

[0029] The utility model proposes a protection component of a balancer, wherein a tower wheel 32 arranged in a housing 30 of the balancer is connected to a hook 33 through a steel rope 31, and the protection component is arranged between the tower wheel 32 and the hook 33, and the protection component comprises a protection seat 10 and a plurality of rollers 20, one side of the protection seat 10 is installed on the housing 30; each roller 20 extends along a first direction, and each roller 20 is rotatably connected to a side of the protection seat 10 away from the housing 30 through a first rotating shaft 23 arranged along the first direction, and the plurality of rollers 20 are arranged at intervals along a second direction. The first direction and the second direction are perpendicular to each other; a through slot 22 for the steel rope 31 to pass through is formed between any two adjacent rollers 20, and a rope threading channel for the steel rope 31 to pass through is opened at a position of the protective seat 10 corresponding to the through slot 22, and the rope threading channel is connected to the through slot 22, and two rollers 21 are respectively provided at both ends of each through slot 22 along the first direction, and each roller 21 is rotatably connected to the side of the protective seat 10 away from the shell 30 through a second rotating shaft 24 arranged along the second direction, and each roller 20 and each roller 21 can abut against the steel rope 31.

[0030] See also Figure 1 , Figure 2 and Figure 3 , the first direction is Figure 3 The front-to-back direction in the second direction is Figure 3 The left and right directions in the figure. One side of the protective seat 10 is connected to the housing 30 of the balancer, and the drum 20 and the roller 21 are both installed on the side of the protective seat 10 away from the housing 30 of the balancer. The steel rope 31 of the balancer starts from the tower wheel 32 and passes through the rope threading channel and the through slot 22 in sequence and is connected to the hook 33. In the through slot 22 surrounded by any two adjacent drums 20, the two rollers 21 respectively block the two ends of the through slot 22, so that the steel rope 31 can abut against any drum 20 or roller 21 when passing through the through slot 22. When the hook 33 is connected to an object, the steel rope 31 passes through any through slot 22 and can be extended or shortened relative to the protective component. When the steel rope 31 is extended or shortened, it can abut against and roll with any drum 20 or roller 21, thereby avoiding direct contact between the steel rope 31 and the housing 30 of the balancer when it is extended or shortened, causing wear.

[0031] The protective component of the balancer proposed by the present utility model is provided with two rollers 21 at both ends of the through groove 22 formed by any two adjacent rollers 20, so that the two rollers 20 and the two rollers 20 together enclose the periphery of the through groove 22. When the hook 33 is connected to an object, the steel rope 31 passes through the through groove 22, and when the steel rope 31 swings at different angles driven by the object, it can abut against one of the rollers 20 or the rollers 21 around the through groove 22, and can roll cooperate with the roller 20 or the roller 21 in contact with it when the steel rope 31 extends or contracts, thereby allowing the steel rope 31 to be connected to the object at multiple angles, avoiding direct contact between the steel rope 31 and the outer shell 30 of the balancer when the steel rope 31 extends or contracts, causing wear, providing protection for the outer shell 30 and the steel rope 31 of the balancer, effectively extending the service life of the balancer, and greatly reducing the friction between the steel rope 31 and the outer shell 30, reducing the resistance of the motor, and ensuring smooth operation of the balancer.

[0032] In an embodiment, the number of rollers 20 is two, and four mounting ears 11 are formed on the side of the protective seat 10 facing away from the tower pulley 32. Each mounting ear 11 extends in the direction of the hook 33, and the four mounting ears 11 are arranged in an array in the first direction and the second direction. A roller 20 is arranged between two mounting ears 11 spaced in the first direction, and the two mounting ears 11 spaced in the first direction are respectively connected to both ends of the first rotating shaft 23, and the roller 20 is sleeved on the first rotating shaft 23; a roller 21 is arranged between two mounting ears 11 spaced in the second direction, and the two mounting ears 11 spaced in the second direction are respectively connected to both ends of the second rotating shaft 24, and the roller 21 is sleeved on the second rotating shaft 24.

[0033] It can be understood that one side of the protective seat 10 is mounted on the outer shell 30 of the balancer. The mounting ears 11 are arranged on the side of the protective seat 10 facing away from the outer shell 30. The mounting ears 11 provide mounting positions for the first rotating shaft 23 and the second rotating shaft 24, so that the rollers 20 and the rollers 21 are both mounted on the side of the protective seat 10 facing away from the outer shell 30, so that the protective seat 10 provides support for the arrangement of the rollers 20 and the rollers 21. When the steel rope 31 extends or contracts in multiple directions, the steel rope 31 abuts against the roller 20 or the roller 21 and does not abut against the protective seat 10, avoiding friction of the steel rope 31 against the protective seat 10.

[0034] In an embodiment, the first rotating shaft 23 is connected to the mounting ear 11 near the protective seat 10, and the second rotating shaft 24 is connected to the mounting ear 11 far from the protective seat 10, so that the first rotating shaft 23 and the second rotating shaft 24 are arranged staggeredly.

[0035] Please refer to Figure 1 and Figure 2, each mounting ear 11 is provided with a first rotating shaft 23 along the first direction and a second rotating shaft 24 along the second direction. By arranging the first rotating shaft 23 and the second rotating shaft 24 at intervals, the first rotating shaft 23 and the second rotating shaft 24 are separated from each other to avoid interference between the first rotating shaft 23 and the second rotating shaft 24.

[0036] In an embodiment, both ends of the first rotating shaft 23 are fastened to two mounting ears 11 spaced along the first direction respectively, and the drum 20 is rollably sleeved on the first rotating shaft 23; both ends of the second rotating shaft 24 are fastened to two mounting ears 11 spaced along the second direction respectively, and the roller 21 is rollably sleeved on the second rotating shaft 24. Further, both the first rotating shaft 23 and the second rotating shaft 24 are fixedly connected to the mounting ears 11, and the drum 20 and the roller 21 can roll around the first rotating shaft 23 and the second rotating shaft 24 respectively, which helps to provide firm support for the drum 20 and the roller 21 and ensure the stability of the drum 20 and the roller 21 during the rolling process.

[0037] In an embodiment, threads are provided at both ends of the first rotating shaft 23 and both ends of the second rotating shaft 24. Both ends of the first rotating shaft 23 extend out of two mounting ears 11 spaced along the first direction respectively and are threadedly engaged with two first nuts 25 respectively; both ends of the second rotating shaft 24 extend out of two mounting ears 11 spaced along the second direction respectively and are threadedly engaged with two second nuts 26.

[0038] It can be explained that the first rotating shaft 23 is passed through two mounting ears 11 spaced along the first direction, and both ends of the first rotating shaft 23 are fastened to the mounting ears 11 by two first nuts 25 respectively; the second rotating shaft 24 is passed through two mounting ears 11 spaced along the second direction, and both ends of the second rotating shaft 24 are fastened to the mounting ears 11 by two second nuts 26 respectively, which makes the disassembly of the first rotating shaft 23 and the second rotating shaft 24 convenient and can ensure the stable connection of the first rotating shaft 23 and the second rotating shaft 24 to the mounting ears 11.

[0039] In an embodiment, both ends of each drum 20 along the first direction are rollably sleeved on the first rotating shaft 23 through two deep groove ball bearings 27 respectively.

[0040] Please refer to Figure 4 , each deep groove ball bearing 27 is arranged between the drum 20 and the first rotating shaft 23, and the two deep groove ball bearings 27 respectively provide support for both ends of the drum 20, so that the drum 20 can roll around the first rotating shaft 23. By providing the deep groove ball bearings 27 to support the drum 20, when the steel rope 31 abuts against the drum 20 and exerts a large pressure on the drum 20, the deep groove ball bearings 27 can bear a large load and ensure the smooth rolling of the drum 20, so as to ensure the smooth rolling cooperation between the steel rope 31 and the drum 20 during the elongation or shortening process.

[0041] In one embodiment, a gap is formed between each deep groove ball bearing 27 and the mounting ear 11 adjacent thereto, and the size of the gap is smaller than the outer diameter of the steel rope 31.

[0042] Understandably, the deep groove ball bearings 27 are arranged at the ends of the drum 20, and the deep groove ball bearings 27 and the mounting ears 11 adjacent thereto are arranged at intervals, so that when the drum 20 rolls around the first rotating shaft 23, the two ends of the drum 20 and the mounting ears 11 adjacent thereto do not interfere with each other. The distance between the deep groove ball bearing 27 and the mounting ear 11 adjacent thereto is smaller than the outer diameter of the steel rope 31, so as to prevent the steel rope 31 from being stuck in the gap between the deep groove ball bearing 27 and the mounting ear 11.

[0043] In one embodiment, a washer 28 located in the gap is provided between each deep groove ball bearing 27 and the mounting ear 11 adjacent thereto.

[0044] Furthermore, the washer 28 separates the drum 20 and the mounting ear 11. During the rotation of the drum 20 relative to the first rotating shaft 23, the washer 28 can absorb the vibration during the rotation of the drum 20, thereby reducing the impact of the rolling of the drum 20 on the mounting ear 11. In addition, washers 28 are provided in the two gaps at both ends of the drum 20, and the two washers 28 fix the drum 20 between the two mounting ears 11 spaced along the first direction, effectively improving the stability of the drum 20 during the rolling process.

[0045] In one embodiment, both the drum 20 and the roller 21 are polyethylene rollers 21. It should be noted that the polyethylene material has good wear resistance and self-lubrication properties, which can reduce the friction between the steel rope 31 and the drum 20 or the roller 21, reduce wear, and ensure the smooth rolling of the drum 20 and the roller 21.

[0046] The present utility model also provides a balancer, which includes the above-mentioned protection assembly. The specific structure of the protection assembly refers to the above-mentioned embodiments. Since this balancer adopts all the technical solutions of the above-mentioned all embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, and will not be elaborated herein one by one. Among them, when the steel rope 31 passes through the through groove 22, it can abut against one of the drum 20 or the roller 21 around the through groove 22, and can rollingly cooperate with the drum 20 or the roller 21 abutting against it when the steel rope 31 extends or contracts, so as to allow the steel rope 31 to be connected to the object at multiple angles, prevent the steel rope 31 from directly contacting the outer shell 30 of the balancer when the steel rope 31 extends or contracts, causing wear, protect the outer shell 30 of the balancer and the steel rope 31, effectively extend the service life of the balancer, and greatly reduce the friction force between the steel rope 31 and the outer shell 30, reduce the resistance of the motor, and ensure the smooth use of the balancer.

[0047] The above are only exemplary embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. A protective component for a balancer, characterized in that: The tower wheel arranged in the housing of the balancer is connected to the hook through a steel rope, and the protection component is arranged between the tower wheel and the hook, and the protection component includes: A protective seat, one side of which is mounted on the housing; A plurality of rollers are provided, each of which extends in a first direction, and each of which is rotatably connected to a side of the protective seat away from the outer shell through a first rotating shaft arranged along the first direction. The plurality of rollers are arranged at intervals along a second direction, and the first direction and the second direction are perpendicular to each other. A through groove for the steel rope to pass through is formed between any two adjacent rollers, and a rope threading channel for the steel rope to pass through is provided at a position of the protective seat corresponding to the through groove, and the rope threading channel is connected to the through groove. Two rollers are respectively provided at both ends of each through groove along the first direction, and each of the rollers is rotatably connected to a side of the protective seat away from the outer shell through a second rotating shaft arranged along the second direction, and each of the rollers and each of the rollers can abut against the steel rope.

2. The protection assembly of the balancer according to claim 1, characterized in that: There are two rollers, and four mounting ears are formed on the side of the protective seat away from the tower wheel, each mounting ear extends toward the direction of the hook, and the four mounting ears are distributed in an array along the first direction and the second direction. The roller is arranged between the two mounting ears spaced apart along the first direction, and the two mounting ears spaced apart along the first direction are respectively connected to the two ends of the first rotating shaft, and the roller is sleeved on the first rotating shaft; the roller is arranged between the two mounting ears spaced apart along the second direction, and the two mounting ears spaced apart along the second direction are respectively connected to the two ends of the second rotating shaft, and the roller is sleeved on the second rotating shaft.

3. The protection assembly of the balancer according to claim 2, characterized in that: The first rotating shaft is connected to a position of the mounting ear close to the protective seat, and the second rotating shaft is connected to a position of the mounting ear away from the protective seat, so that the first rotating shaft and the second rotating shaft are staggered.

4. The protection assembly of the balancer according to claim 3, characterized in that: The two ends of the first rotating shaft are respectively fastened to the two mounting ears spaced apart along the first direction, and the roller is rollably mounted on the first rotating shaft; the two ends of the second rotating shaft are respectively fastened to the two mounting ears spaced apart along the second direction, and the roller is rollably mounted on the second rotating shaft.

5. The protection assembly of the balancer according to claim 4, characterized in that: Both ends of the first rotating shaft and both ends of the second rotating shaft are provided with threads, and the two ends of the first rotating shaft respectively extend out of the two mounting ears spaced along the first direction and respectively cooperate with the two first nut threads; the two ends of the second rotating shaft respectively extend out of the two mounting ears spaced along the second direction and respectively cooperate with the two second nut threads.

6. The protection assembly of the balancer according to claim 4, characterized in that: Two ends of each of the rollers along the first direction are respectively rotatably sleeved on the first rotating shaft through two deep groove ball bearings.

7. The protection assembly of the balancer according to claim 6, characterized in that: A gap is formed between each of the deep groove ball bearings and the mounting ears adjacent thereto, and the size of the gap is smaller than the outer diameter of the steel rope.

8. The protection assembly of the balancer according to claim 7, characterized in that: A gasket located in the gap is provided between each deep groove ball bearing and the mounting ear adjacent thereto.

9. The protection assembly of the balancer according to any one of claims 1 to 8, characterized in that: The drum and the roller are both polyethylene rollers.

10. A balancer, characterized in that: A protective component as claimed in any one of claims 1 to 9 is used.

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