Counterweight mechanism for counterbalance forklift truck

Abstract

The utility model discloses a counter weight mechanism for a counter balanced forklift truck. The counter weight mechanism comprises a main counter weight, an auxiliary counter weight and a counter weight cover plate, the main counterweight is assembled at the tail part of the frame, and is provided with an inner cavity for placing the controller and the electrical part assembly; the auxiliary balance weight is assembled in a groove in the tail portion of the frame on the inner side of the main balance weight, and the balance weight of the whole forklift is adjusted by increasing or decreasing or replacing auxiliary balance weights of different models so as to be matched with forklifts of different performances. The counter weight cover plate is assembled on the top face of the main counter weight and used for covering the controller and the electrical part assembly in the inner cavity, and the controller and the electrical part assembly are overhauled by disassembling the counter weight cover plate. The center-of-gravity position of the main counterweight can be lowered by adding the inner cavity, so that the stability of the vehicle is enhanced; and serialization of product performance, generalization of parts and cost superiority are realized through addition and deletion of the auxiliary counter weight.

Description

Technical Field

[0001] The utility model relates to a counterweight mechanism for a counterbalanced forklift, belonging to the technical field of engineering machinery. Background Art

[0002] Forklifts are industrial handling vehicles, which refer to various wheeled handling vehicles for loading and unloading, stacking and short-distance transportation of palletized goods. They are widely used in various national economic sectors such as stations, ports, airports, factories, warehouses, etc. They are efficient equipment for mechanized loading and unloading, stacking and short-distance transportation.

[0003] The controller and electrical components of existing forklifts are installed at the rear of the frame. Since a counterweight is also installed at the rear of the frame, the counterweight cuts off the air circulation between the controller and electrical components and the outside world, resulting in poor heat dissipation performance of the controller and electrical components. Secondly, since the counterweight is troublesome to disassemble and assemble, it is inconvenient to repair or replace the controller and electrical components. Finally, since the weight of the counterweight of vehicles with different performances is different, each time a new functional forklift is developed, a main counterweight mold needs to be added, which undoubtedly greatly increases the mold cost. Summary of the invention

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a counterweight mechanism for a counterbalanced forklift, so as to solve the technical problems in the prior art that an independently installed controller has poor heat dissipation performance; the controller and electrical components are inconvenient to repair and replace; the electrical components are installed on the counterweight and have poor waterproof performance; and when developing series products, the main counterweights of vehicles with different performances need to increase mold costs due to different weights.

[0005] In order to solve the above technical problems, the utility model is implemented by adopting the following technical solutions:

[0006] A counterweight mechanism for a counterbalanced forklift, comprising:

[0007] A main counterweight is mounted at the rear of the frame, and the main counterweight is provided with an inner cavity for placing a controller and an electrical component assembly;

[0008] The auxiliary counterweight is installed in the groove at the rear of the frame inside the main counterweight. The counterweight weight of the whole vehicle can be adjusted by adding, removing or replacing auxiliary counterweights of different models to match forklifts with different performances.

[0009] A counterweight cover plate is mounted on the top surface of the main counterweight and is used to cover the controller and the electrical component assembly in the inner cavity, and the controller and the electrical component assembly can be inspected and repaired by removing the counterweight cover plate.

[0010] In some embodiments, a partition is fixed in the inner cavity of the main counterweight, and the controller and electrical component assembly are mounted on the partition.

[0011] In some embodiments, a symmetrically arranged triangular groove with an opening facing downward is provided on each side wall of the inner cavity of the main counterweight, and the triangular groove cooperates with the triangular hanging block at the rear of the frame to hang the main counterweight on the frame.

[0012] In some embodiments, the main counterweight is provided with at least one mounting hole, the frame is provided with a threaded hole corresponding to the mounting hole, and the main counterweight is fixed to the frame by bolts.

[0013] In some embodiments, the main counterweight is provided with a water guiding component at the connection between the main counterweight and the counterweight cover plate, for guiding rainwater flowing into the gap between the main counterweight and the counterweight cover plate to flow to the outside of the main counterweight.

[0014] In some embodiments, a water channel is provided at the top of the inner side wall of the main counterweight, which protrudes outward and opens upward and is arranged along the entire top edge; both ends of the water channel are not closed and are used to flow out rainwater in the water channel.

[0015] In some embodiments, a sealing strip is installed around the connection between the counterweight cover plate and the main counterweight.

[0016] In some embodiments, the auxiliary counterweight is a V-shaped structure as a whole, and is assembled in the V-shaped groove at the rear of the frame by fasteners; when the number of auxiliary counterweights is at least two, multiple auxiliary counterweights are superimposed together and then fasteners are passed through all auxiliary counterweights and then assembled in the V-shaped groove at the rear of the frame.

[0017] In some embodiments, at least one lifting hole is provided on each of the main counterweight and the auxiliary counterweight.

[0018] In some embodiments, the lifting hole is a threaded hole for installing a lifting ring.

[0019] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0020] In the utility model, the main counterweight is provided with an inner cavity and a water guide groove, and the controller and electrical components are arranged in the inner cavity, which is convenient for installation and wiring, later maintenance and enhancing the heat dissipation capacity of the controller; and the designed water guide groove and counterweight cover plate ensure the sealing of the inner cavity and eliminate the risk of the controller and electrical components being exposed to rain.

[0021] In the utility model, the auxiliary counterweight cleverly utilizes the space of the V-shaped groove of the frame tail frame to be independently installed, so that the design of the main counterweight is reduced and the development cost of the main counterweight mold is reduced when developing serial products with different performances. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0023] In the attached picture:

[0024] Figure 1 It is a schematic diagram of the assembly of the main counterweight and the auxiliary counterweight of the utility model;

[0025] Figure 2 This is a schematic diagram of the main counterweight of the utility model;

[0026] Figure 3 It is a schematic diagram of the counterweight cover plate of the utility model;

[0027] Figure 4 It is a schematic diagram of the auxiliary counterweight of the utility model;

[0028] In the figure: 1. main counterweight, 11. inner cavity, 12. triangular groove, 13. lifting hole, 14. mounting hole, 15. water guide groove; 2. counterweight cover plate, 21. five-star handle, 22. sealing strip; 3. controller; 4. electrical parts assembly; 5. auxiliary counterweight.

[0029] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0031] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] like Figure 1 As shown, a counterweight mechanism for a counterbalanced forklift includes a main counterweight 1, an auxiliary counterweight 5 and a counterweight cover plate 2; the main counterweight 1 is mounted at the rear of the frame, and the main counterweight 1 is provided with an inner cavity for placing a controller 3 and an electrical component assembly 4; the auxiliary counterweight 5 is mounted in a groove at the rear of the frame located on the inner side of the main counterweight 1, and the counterweight weight of the entire vehicle is adjusted by adding, removing or replacing auxiliary counterweights 5 of different models to match forklifts with different performances; the counterweight cover plate 2 is mounted on the top surface of the main counterweight 1, and is used to cover the controller 3 and the electrical component assembly 4 in the inner cavity, and the controller 3 and the electrical component assembly 4 are inspected and repaired by removing the counterweight cover plate 2.

[0034] Continue to refer to Figure 1 , Figure 2 As shown, a partition is fixed in the inner cavity of the main counterweight 1, and the controller 3 and the electrical component assembly 4 are assembled on the partition. Since the controller 3 and the electrical component assembly 4 are arranged in the inner cavity of the main counterweight 1, in addition to having a good heat dissipation effect, the most important thing is to facilitate maintenance and installation. When repairing, just remove the counterweight cover plate 2.

[0035] Continue to refer to Figure 1 , Figure 2 As shown, a symmetrically arranged triangular groove 12 with an opening facing downward is provided on each side wall of the inner cavity of the main counterweight 1, and the triangular groove 12 cooperates with the triangular hanging block at the rear of the frame to hang the main counterweight 1 on the frame. The main counterweight 1 is provided with at least one mounting hole 14, and the frame is provided with a threaded hole corresponding to the mounting hole 14, and the main counterweight 1 is fixed to the frame by bolts.

[0036] Further solutions, such as Figure 2 As shown, the main counterweight 1 is provided with a water guide component at the connection with the counterweight cover plate 2 , which is used to guide rainwater flowing into the gap between the main counterweight 1 and the counterweight cover plate 2 to flow to the outside of the main counterweight 1 .

[0037] Preferred solution: A water guide groove 15 is provided at the top of the inner wall of the main counterweight 1, which protrudes outward and opens upward and is arranged along the entire top edge; both ends of the water guide groove 15 are not closed, so as to allow rainwater in the water guide groove 15 to flow out. The water guide groove 15 can effectively solve the risk of electrical components being exposed to rain.

[0038] Further solutions, such as Figure 3 As shown, the counterweight cover plate 2 is fixed by three five-star handles 21 , and a sealing strip 22 is installed around the connection between the counterweight cover plate 2 and the main counterweight 1 , which achieves a better sealing effect by cooperating with the water guide groove 15 .

[0039] like Figure 1 , Figure 4 As shown, the auxiliary counterweight 5 is a V-shaped structure as a whole, which is assembled in the V-shaped groove at the rear of the frame through fasteners; when the number of auxiliary counterweights 5 is at least two, multiple auxiliary counterweights 5 are stacked together and then fasteners are passed through all auxiliary counterweights 5 and then assembled in the V-shaped groove at the rear of the frame. The auxiliary counterweight 5 is cleverly arranged in the space of the V-shaped groove at the rear of the frame. In the serialized design, the different performance of the vehicle is achieved by adding or reducing auxiliary counterweights to distinguish high-end and low-end product configurations. This method can achieve the same main counterweight for different performance products in the same series in the serialized design, reducing the main counterweight mold development costs and saving costs, and truly realizing the universality of components.

[0040] like Figure 2 , Figure 4 As shown, at least one lifting hole 13 is provided on each of the main counterweight 1 and the auxiliary counterweight 5. The lifting hole 13 is provided at the center of the main counterweight 1 and the auxiliary counterweight 5, so as to facilitate horizontal lifting during installation.

[0041] Preferred solution: the lifting hole 13 is a threaded hole for installing a lifting ring.

[0042] In summary, the utility model provides a counterweight mechanism for a counterbalanced forklift, including a main counterweight, a secondary counterweight and a counterweight cover plate; the main counterweight is provided with an inner cavity, a triangular groove, a hoisting hole and a water guide groove, and is mounted on the frame through its own triangular groove and the side frame and tail frame triangular hanging block, and is fixed and tightened by bolts; the inner cavity is used to place the controller and various electrical components; the designed water guide groove and counterweight cover plate ensure the sealing of the inner cavity and eliminate the risk of the controller and electrical components being exposed to rain; the secondary counterweight is provided with a hoisting hole and is installed in the V-groove at the rear of the frame by bolts. The main counterweight can lower the center of gravity by adding an inner cavity, thereby enhancing the stability of the vehicle; the controller and various electrical components are installed in the inner cavity, and the heat dissipation capacity of the controller can be accelerated by applying thermal conductive silicone grease on the contact surface, and more importantly, it is easy to maintain; the serialization of product performance, the commonality of components, and the cost advantage can be achieved by adding and deleting secondary counterweights.

[0043] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0044] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present utility model and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by the present application.

[0045] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A counterweight mechanism for a counterbalanced forklift, characterized in that: include: A main counterweight is mounted at the rear of the frame, and the main counterweight is provided with an inner cavity for placing a controller and an electrical component assembly; The auxiliary counterweight is installed in the groove at the rear of the frame inside the main counterweight. The counterweight weight of the whole vehicle can be adjusted by adding, removing or replacing auxiliary counterweights of different models to match forklifts with different performances. A counterweight cover plate is mounted on the top surface of the main counterweight and is used to cover the controller and the electrical component assembly in the inner cavity, and the controller and the electrical component assembly can be inspected and repaired by removing the counterweight cover plate.

2. A counterweight mechanism for a counterbalanced forklift according to claim 1, characterized in that: A partition is fixed in the inner cavity of the main counterweight, and the controller and the electrical component assembly are mounted on the partition.

3. The counterweight mechanism for a counterbalanced forklift according to claim 1, characterized in that: A symmetrically arranged triangular groove with its opening facing downward is respectively provided on the two side walls of the inner cavity of the main counterweight, and the triangular groove cooperates with the triangular hanging block at the rear of the frame to hang the main counterweight on the frame.

4. The counterweight mechanism for a counterbalanced forklift according to claim 1, characterized in that: The main counterweight is provided with at least one mounting hole, the frame is provided with a threaded hole corresponding to the mounting hole, and the main counterweight is fixed to the frame by bolts.

5. The counterweight mechanism for a counterbalanced forklift according to claim 1, characterized in that: The main counterweight is provided with a water guiding component at the connection between the main counterweight and the counterweight cover plate, which is used to guide rainwater flowing into the gap between the main counterweight and the counterweight cover plate to flow to the outside of the main counterweight.

6. The counterweight mechanism for a counterbalanced forklift according to claim 5, characterized in that: The top end of the inner side wall of the main counterweight is provided with a water guide groove which protrudes outwards and opens upwards and is arranged along the entire top edge; The two ends of the water guide groove are not closed and are used to let rainwater in the water guide groove flow out.

7. The counterweight mechanism for a counterbalanced forklift according to claim 1, characterized in that: The counterweight cover plate is provided with a sealing strip around the periphery of the connection with the main counterweight.

8. The counterweight mechanism for a counterbalanced forklift according to claim 1, characterized in that: The auxiliary counterweight is a V-shaped structure as a whole, and is assembled in the V-shaped groove at the rear of the frame by fasteners; When the number of the auxiliary counterweights is at least two, the plurality of auxiliary counterweights are superimposed together and then fasteners are passed through all the auxiliary counterweights and then assembled in the V-shaped groove at the rear of the frame.

9. The counterweight mechanism for a counterbalanced forklift according to claim 1, characterized in that: The main counterweight and the auxiliary counterweight are each provided with at least one lifting hole.

10. The counterweight mechanism for a counterbalanced forklift according to claim 9, characterized in that: The lifting hole is a threaded hole for installing a lifting ring.

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