A counterbalance device for a forklift truck

Abstract

The utility model discloses a kind of balancing device for fork truck transport counterweight block, a kind of balancing device for fork truck transport counterweight block, comprising: fork truck, load fork sleeve and load assembly;Fork truck includes vehicle body and pallet fork, and the front end of vehicle body is fixedly arranged pallet fork;Load fork sleeve is sleeved on pallet fork, and the lower end of load fork sleeve is fixedly arranged with first lifting lug and second lifting lug, and the both ends of load assembly are connected with first lifting lug and second lifting lug respectively, with the advantage of simple operation, improve work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of forklift operation auxiliary equipment, and in particular relates to a balancing device for transporting counterweights by forklifts. Background Technology

[0002] In engineering construction and equipment installation, the transportation of counterweights, such as those for tracked cranes, is a critical process. Traditional methods of transporting counterweights have significant drawbacks: The operation process is complicated and costly: it requires the coordinated operation of cranes and flatbed trucks. The cranes first lift the counterweights from the storage point to the flatbed trucks, transport them to the site, and then lift and place them by the cranes. This not only occupies multiple large pieces of equipment, but also requires multiple operators. The equipment rental and labor costs are high, and the operation cycle is long. Direct transport by forklift has poor safety: If the special equipment is omitted and the forklift forks are used directly for transport, multiple problems are likely to occur: Insufficient adaptability: There is no fixed connection structure between the forks and the counterweight, the contact surface is small, and it is easy to slip, shift, or even bump the surface of the counterweight during transport; Lack of stability: When the forklift is moving, braking, or turning, the inertia will cause the counterweight to shake violently, which may lead to the risk of falling off and causing personal injury and equipment damage; Inconvenient adjustment: It is impossible to flexibly adjust the load-bearing structure according to the number of counterweights (1 or 2), and it is necessary to frequently change auxiliary tools, resulting in low work efficiency; High operation difficulty: The connection and disassembly process between the forks and the counterweight lacks convenient grips, and it is laborious and unsafe for operators to install and disassemble the tooling.

[0003] Therefore, there is an urgent need to design a balancing device for transporting counterweights by forklifts to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this invention is to provide a balancing device for transporting counterweights by forklifts, which has the advantages of simple operation and improved work efficiency.

[0005] To achieve the above objectives, the specific technical solution of the balancing device for transporting counterweights by forklifts according to this utility model is as follows: A balancing device for transporting counterweights by forklifts includes: a forklift, load-bearing fork sleeves, and load-bearing components; The forklift includes a chassis and forks, with the forks fixedly mounted at the front end of the chassis. The load-bearing fork sleeve is fitted onto the forks, and a first lifting lug and a second lifting lug are fixedly provided at the lower end of the load-bearing fork sleeve. The two ends of the load-bearing component are respectively connected to the first lifting lug and the second lifting lug.

[0006] Furthermore, each of the forks is fitted with two load-bearing fork sleeves.

[0007] Furthermore, the balancing device for transporting counterweights by forklifts also includes a fixing element, through which the two load-bearing fork sleeves are fixedly connected.

[0008] Furthermore, the fixing component includes a third lifting lug and a stabilizing chain. The third lifting lug is disposed on the front or rear side of the load-bearing fork sleeve, and the two ends of the stabilizing chain are respectively fixedly connected to the third lifting lug on the two load-bearing fork sleeves.

[0009] Furthermore, the balancing device for transporting counterweights by forklifts also includes a load-bearing component comprising a first chain, a second chain, and a chain adjuster. One end of the first chain is connected to the first lifting lug, and the second end of the first chain is fixedly connected to the chain adjuster. One end of the second chain is connected to the second lifting lug, and the second end of the second chain is detachably connected to the chain adjuster.

[0010] Furthermore, the chain adjuster includes an adjusting sleeve and an adjusting screw. One end of the adjusting sleeve is fixedly connected to the first chain, and the inner wall of the adjusting sleeve is provided with an internal thread. One end of the adjusting screw is detachably connected to the second chain, and the outer wall of the adjusting screw is provided with an external thread that matches the internal thread.

[0011] Furthermore, handles are provided on the left and right sides of the load-bearing fork sleeve.

[0012] Furthermore, the outer wall of the load-bearing fork sleeve is integrally formed with reinforcing ribs, which are arranged along the length direction of the load-bearing fork sleeve and are evenly distributed on the left and right sides and the upper and lower end faces of the load-bearing fork sleeve.

[0013] The balancing device for transporting counterweights by forklifts according to this invention has the following advantages: Simplify the operation process and reduce costs. No cranes and flatbed trucks are needed. The counterweight can be transported using only a forklift in conjunction with this device, reducing equipment investment and labor costs and shortening the operation cycle. Transportation stability is significantly improved. The lateral fixing structure of the double load-bearing fork sleeves and the stabilizing chain prevents the load-bearing fork sleeves from misaligning. The chain adjuster precisely controls the chain length, eliminating the swaying of the counterweight caused by excessive chain length. Combined with the stable connection between the chain and the lifting lugs, the risk of the counterweight falling off is eliminated. With optimized adaptability and adjustability, the chain adjuster achieves fine-tuning of length through threaded engagement, which can flexibly adapt to the transportation needs of one or two stacked counterweights without the need to change special tooling, thus improving work efficiency. Improved ease of operation: The handles on both sides of the load-bearing fork sleeve facilitate quick installation and disassembly of the tooling by the operator, reducing labor intensity; each component adopts detachable connection (such as shackles and hooks), which is convenient for maintenance and replacement. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the balancing device for counterweights used in forklift transportation according to this utility model; Figure 2 This is a schematic diagram of the planar structure of the balancing device for counterweights used in forklift transportation according to this utility model; Figure 3 This is a partial structural schematic diagram of the balancing device for counterweights used in forklift transportation according to this utility model.

[0015] Explanation of markings in the diagram: 1. Forklift; 101. Body; 102. Forks; 2. Load-bearing fork sleeves; 3. First lifting lug; 4. Second lifting lug; 5. Third lifting lug; 6. Stabilizing chain; 7. Load-bearing component; 701. First chain; 702. Second chain; 703. Chain adjuster; 8. Handle; 9. Reinforcing rib. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0018] The following is a reference to the appendix. Figure 1 To be continued Figure 3 This invention describes a balancing device for transporting counterweights using a forklift.

[0019] like Figures 1 to 2 As shown, a balancing device for transporting counterweights by forklift includes: a forklift 1, a load-bearing fork sleeve 2, and a load-bearing component 7; The forklift 1 includes a body 101 and forks 102, with the forks 102 fixedly mounted at the front end of the body 101; The load-bearing fork sleeve 2 is fitted onto the fork 102. The lower end of the load-bearing fork sleeve 2 is fixedly provided with a first lifting lug 3 and a second lifting lug 4. The two ends of the load-bearing component 7 are respectively connected to the first lifting lug 3 and the second lifting lug 4.

[0020] Specifically, the forklift 1 includes a body 101 and forks 102. The forks 102 are fixedly mounted horizontally at the front end of the body 101 and are two parallel rigid load-bearing components used to support the overall weight of the balancing device and counterweight, adapting to the structural specifications of existing standard forklifts 1. The load-bearing fork sleeve 2 is a sleeve-shaped rigid component adapted to the forks 102. It is integrally formed from high-strength steel (such as Q355 steel), and its inner diameter is precisely matched with the cross-sectional dimensions of the forks 102, allowing it to be tightly fitted onto the forks 102 and preventing relative slippage. The lower end of the load-bearing fork sleeve 2, i.e., the side facing the ground, is welded and fixed with a first lifting lug 3 and a second lifting lug 4. Both are metal components with through circular holes, the inner diameter of which is adapted to the connecting parts of the load-bearing component 7, for achieving a stable connection with the load-bearing component 7.

[0021] Preferably, the inner wall of the load-bearing fork sleeve 2 is provided with diamond-shaped anti-slip textures extending along the length direction, and the depth of the anti-slip textures is 1~2mm, which is used to increase the friction between the load-bearing fork sleeve 2 and the fork 102.

[0022] Furthermore, such as Figure 1 and Figure 2 As shown, each of the forks 102 is fitted with two load-bearing fork sleeves 2.

[0023] Specifically, each fork 102 is fitted with two load-bearing fork sleeves 2, which are spaced 30-50cm apart along the length of the fork 102, thereby enhancing the stability of the counterweight by providing two-point support.

[0024] Furthermore, such as Figure 1 and Figure 2 As shown, the balancing device for transporting counterweights by forklifts also includes a fixing component, and the two load-bearing fork sleeves 2 are fixedly connected by the fixing component.

[0025] Furthermore, such as Figure 1 and Figure 2 As shown, the fixing component includes a third lifting lug 5 and a stabilizing chain 6. The third lifting lug 5 is disposed on the front or rear side of the load-bearing fork sleeve 2, and the two ends of the stabilizing chain 6 are respectively fixedly connected to the third lifting lug 5 on the two load-bearing fork sleeves 2.

[0026] Specifically, to prevent the two load-bearing fork sleeves 2 from misaligning along the width direction of the fork 102, this device is equipped with a fixing component, which includes a third lifting lug 5 and a stabilizing chain 6. The third lifting lug 5 is a metal component with the same structure as the first lifting lug 3 and the second lifting lug 4, and is welded and fixed to the front side (facing the tip of the fork 102) or the rear side (facing the vehicle body 101) of the load-bearing fork sleeve 2. Each load-bearing fork sleeve 2 is provided with a corresponding third lifting lug 5, and the third lifting lugs 5 on the two load-bearing fork sleeves 2 are at the same horizontal height. The stabilizing chain 6 is made of G80 grade lifting steel chain, and its two ends are fixedly connected to the third lifting lugs 5 on the two load-bearing fork sleeves 2 respectively through shackles to form a transverse tie structure, which restricts the relative displacement of the two load-bearing fork sleeves 2 and improves the overall stability.

[0027] Furthermore, such as Figures 1 to 3 As shown, the balancing device for transporting counterweights by forklifts also includes a load-bearing component 7 comprising a first chain 701, a second chain 702, and a chain adjuster 703. One end of the first chain 701 is connected to the first lifting lug 3, and the second end of the first chain 701 is fixedly connected to the chain adjuster 703. One end of the second chain 702 is connected to the second lifting lug 4, and the second end of the second chain 702 is detachably connected to the chain adjuster 703.

[0028] Preferably, the chain adjuster 703 includes an adjusting sleeve and an adjusting screw. One end of the adjusting sleeve is fixedly connected to the first chain 701. The inner wall of the adjusting sleeve is provided with an internal thread. One end of the adjusting screw is detachably connected to the second chain 702. The outer wall of the adjusting screw is provided with an external thread that matches the internal thread.

[0029] Specifically, the load-bearing component 7 is the core force-bearing component connecting the load-bearing fork sleeve 2 and the counterweight, including a first chain 701, a second chain 702, and a chain adjuster 703. These three components work together to achieve load-bearing and length adjustment functions. Both the first chain 701 and the second chain 702 are high-strength lifting steel chains of the same specifications as the stabilizing chain 6, with their lengths preset according to the conventional height of the counterweight. One end of the first chain 701 is detachably connected to the first lifting lug 3 of the load-bearing fork sleeve 2 via a shackle, and the other end is fixedly connected to the chain adjuster 703, such as by welding or pin locking. One end of the second chain 702 is detachably connected to the second lifting lug 4 of the load-bearing fork sleeve 2 via a shackle, and the other end is fixedly connected to the chain adjuster 703. The chain adjuster 703 is detachably connected; the chain adjuster 703 includes an adjusting sleeve and an adjusting screw. The adjusting sleeve is a hollow cylindrical component, one end of which is fixedly connected to the first chain 701, and the inner wall is provided with evenly distributed internal threads; the adjusting screw is a cylindrical metal rod, one end of which is detachably connected to the second chain 702, such as through a hook or pin, and the outer wall is provided with external threads that precisely match the internal threads of the adjusting sleeve; by rotating the adjusting sleeve or the adjusting screw, the engagement length of the adjusting sleeve and the adjusting screw is changed by utilizing the threaded engagement, thereby achieving precise adjustment of the total length of the first chain 701 and the second chain 702, adapting to the transportation needs of different numbers of counterweights.

[0030] Specifically, a chain tensioner is provided in the middle of the stabilizing chain 6. The structure of the chain tensioner is the same as that of the chain adjuster 703 of the load-bearing component 7, and it is used to adjust the tension of the stabilizing chain 6.

[0031] Furthermore, handles 8 are provided on the left and right sides of the load-bearing fork sleeve 2.

[0032] Specifically, handles 8 are welded and fixed on the left and right sides of the load-bearing fork sleeve 2 perpendicular to the length direction of the fork 102. The handles 8 are cylindrical rigid structures with a length of 15~20cm and the surface is treated with anti-slip treatment (such as knurling or wrapping with anti-slip rubber) to facilitate the operator's grip for installing or removing the load-bearing fork sleeve 2.

[0033] Preferably, the handle 8 is a foldable structure, including a fixed section and a movable section. The fixed section is welded and fixed to the load-bearing fork sleeve 2, and the movable section is connected to the fixed section by a hinge. The movable section can rotate around the hinge to a storage position that fits with the load-bearing fork sleeve 2. The outer surface of the movable section is covered with an anti-slip rubber sleeve with uneven anti-slip texture. The length of the movable section is 15~20cm.

[0034] Furthermore, the outer wall of the load-bearing fork sleeve 2 is integrally formed with reinforcing ribs 9, which are arranged along the length direction of the load-bearing fork sleeve 2 and are evenly distributed on the left and right sides and the upper and lower end faces of the load-bearing fork sleeve 2.

[0035] Specifically, the load-bearing fork sleeve 2 is made of Q355 steel with a wall thickness of 8-10mm. Its inner diameter is compatible with the cross-section of the conventional forklift fork 102, such as 120mm×50mm. The rated load of a single load-bearing fork sleeve 2 is not less than 8t. The stabilizing chain 6, the first chain 701, and the second chain 702 are all made of G80 grade lifting chains with a diameter of 18mm and a breaking tensile strength of not less than 12t to ensure the safe transportation of heavy counterweights. The adjusting sleeve and adjusting screw of the chain adjuster 703 are both forged from 45# steel, and the internal / external thread specification is M. 30×2, with a pitch of 2mm and an adjustable stroke of 60~100mm, to meet the needs of different numbers of counterweights; the first lifting lug 3, the second lifting lug 4, and the third lifting lug 5 are all made of 45# steel forged as a whole, with a thickness of 15mm and an inner diameter of 25mm for the round hole, which is precisely matched with the shackle. The weld height at the connection is not less than 12mm, and the full welding process is used to ensure stability; the handle 8 is made of Φ20mm round steel bent into shape, with a length of 18cm, and the surface is covered with a non-slip rubber sleeve with a non-slip texture depth of 1mm to improve grip comfort and safety.

[0036] The present invention will be further illustrated by specific embodiments below, but these embodiments do not limit the scope of protection of the present invention.

[0037] Example 1 The operator holds the handles 8 on both sides of the load-bearing fork sleeve 2 and puts the two load-bearing fork sleeves 2 onto the two forks 102 of the forklift 1 respectively. The operator adjusts the spacing between the two load-bearing fork sleeves 2 to match the width of the single counterweight block. The two ends of the stabilizing chain 6 are connected to the third lifting lugs 5 of the two load-bearing fork sleeves 2 respectively through the shackle. The operator tightens the stabilizing chain 6 to fix the relative position of the two load-bearing fork sleeves 2 and prevents misalignment during transportation. One end of the first chain 701 is connected to the first lifting lug 3 of the load-bearing fork sleeve 2 via a shackle, and the other end is connected to the fixed end of the adjusting sleeve of the chain adjuster 703. One end of the second chain 702 is connected to the second lifting lug 4 of the load-bearing fork sleeve 2 via a shackle, and the other end is detachably connected to the adjusting screw of the chain adjuster 703. By rotating the adjusting sleeve or adjusting screw clockwise, the meshing action of the internal and external threads shortens the mating length of the adjusting sleeve and adjusting screw, thereby reducing the total length of the first chain 701 and the second chain 702, so that the chain is in a moderately taut state. The forklift 1 is moved to the counterweight storage position, and the height of the forks 102 is adjusted so that the free ends of the first chain 701 and the second chain 702 are aligned. The lifting lugs of the counterweight are used to secure the second chain 702 to the counterweight via hooks or shackles. The forks 102 are slowly raised, and after confirming that the counterweight is lifted smoothly without swaying, the forklift 1 is driven at a constant speed to transport it to the target location. During transportation, the stabilizing chain 6 restricts the lateral displacement of the load-bearing fork sleeve 2, and the chain adjuster 703 keeps the length of the second chain 702 stable to prevent the counterweight from swaying due to the inertia generated by the braking and steering of the forklift 1. After reaching the target location, the forks 102 are slowly lowered, and the counterweight is placed smoothly on the preset pallet. The connection structure between the second chain 702 and the counterweight is disassembled, and the adjusting sleeve is rotated counterclockwise to loosen the second chain 702. Then, the handle 8 is held to remove the load-bearing fork sleeve 2 and the stabilizing chain 6 in sequence to complete the operation.

[0038] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A balancing device for transporting counterweights by forklifts, characterized in that, include: Forklifts, load-bearing fork sleeves, and load-bearing components; The forklift includes a chassis and forks, with the forks fixedly mounted at the front end of the chassis. The load-bearing fork sleeve is fitted onto the forks, and a first lifting lug and a second lifting lug are fixedly provided at the lower end of the load-bearing fork sleeve. The two ends of the load-bearing component are respectively connected to the first lifting lug and the second lifting lug.

2. The balancing device for transporting counterweights by forklifts according to claim 1, characterized in that, Each of the forks is fitted with two load-bearing fork sleeves.

3. The balancing device for transporting counterweights by forklifts according to claim 2, characterized in that, It also includes a fastener, through which the two load-bearing fork sleeves are fixedly connected.

4. The balancing device for transporting counterweights by forklifts according to claim 3, characterized in that, The fastener includes a third lifting lug and a stabilizing chain. The third lifting lug is located on the front or rear side of the load-bearing fork sleeve, and the two ends of the stabilizing chain are respectively fixedly connected to the third lifting lug on the two load-bearing fork sleeves.

5. The balancing device for transporting counterweights by forklifts according to claim 1, characterized in that, It also includes a load-bearing component comprising a first chain, a second chain, and a chain adjuster. One end of the first chain is connected to the first lug, and the second end of the first chain is fixedly connected to the chain adjuster. One end of the second chain is connected to the second lug, and the second end of the second chain is detachably connected to the chain adjuster.

6. The balancing device for transporting counterweights by forklifts according to claim 5, characterized in that, The chain adjuster includes an adjusting sleeve and an adjusting screw. One end of the adjusting sleeve is fixedly connected to the first chain, and the inner wall of the adjusting sleeve is provided with an internal thread. One end of the adjusting screw is detachably connected to the second chain, and the outer wall of the adjusting screw is provided with an external thread that matches the internal thread.

7. The balancing device for transporting counterweights by forklifts according to claim 1, characterized in that, The load-bearing fork sleeve is equipped with handles on both the left and right sides.

8. The balancing device for transporting counterweights by forklifts according to claim 1, characterized in that, The outer wall of the load-bearing fork sleeve is integrally formed with reinforcing ribs, which are arranged along the length direction of the load-bearing fork sleeve and are evenly distributed on the left and right sides and the upper and lower end faces of the load-bearing fork sleeve.

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