Integrated drive for forklift

Abstract

The utility model discloses an integrated drive for a forklift, which belongs to the technical field of industrial machinery and comprises a frame, a diesel engine is arranged at the top end of the frame, a transmission wheel is connected to the right end of the diesel engine, and the transmission wheel is connected with a gear oil pump through a cross universal joint. The gear oil pump is connected with an oil pressure lifting controller and a walking controller at the same time, and the transmission wheels are connected with a generator through a synchronous belt. According to the utility model, the power provided by the diesel engine can be utilized more efficiently.

Description

Technical Field

[0001] This utility model belongs to the field of industrial machinery technology, specifically relating to an integrated drive for loader. Background Technology

[0002] In traditional forklifts, the drive system is usually composed of multiple discrete components connected by a timing belt. For example, the transmission pulley of the diesel engine is connected to the hydraulic lifting pulley and the gearbox pulley via a timing belt, and the output is controlled by the hydraulic lifting pulley and the gearbox pulley. In the case of power transmission via a timing belt, the transmission efficiency is often affected by friction and energy loss, resulting in a decline in overall performance and failure to fully utilize the power provided by the diesel engine. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an integrated drive for forklifts that can utilize the power provided by the diesel engine more efficiently.

[0004] The technical solution adopted by this utility model is an integrated drive for a loader, including a frame, a diesel engine is installed at the top of the frame, a transmission wheel is connected to the right end of the diesel engine, a gear oil pump is connected to the transmission wheel through a universal joint, the gear oil pump is connected to both a hydraulic lifting controller and a travel controller, and a generator is connected to the transmission wheel through a synchronous belt.

[0005] The present invention is further characterized in that,

[0006] The hydraulic lifting controller includes a return valve, which is connected to a distributor.

[0007] The travel controller includes a travel valve, which is connected to a gearbox.

[0008] The gear oil pump is a dual pump. The gear oil pump has two inlet pipes on the left side and a first outlet pipe and a second outlet pipe on the right side. The first outlet pipe is connected to the travel valve and the second outlet pipe is connected to the return valve.

[0009] The beneficial effects of this utility model are:

[0010] (1) The integrated drive for loader of this utility model significantly reduces the overall space occupied by the equipment and improves the flexibility of the machine by integrating key components.

[0011] (2) The integrated design of the integrated drive for loader of this utility model reduces energy loss between components, ensures efficient transmission of the power system, and improves the working efficiency of the loader.

[0012] (3) The integrated drive for loader of this utility model adopts a dual pump structure, which can flexibly distribute oil pressure and meet a variety of operation requirements at the same time, further improving the overall performance and adaptability of the system. Attached Figure Description

[0013] Figure 1 This is an overall structural diagram of an integrated drive system for a loader according to this utility model.

[0014] In the diagram, 1. chassis, 2. diesel engine, 3. transmission wheel, 4. universal joint, 5. gear oil pump, 501. oil inlet pipe, 502. first oil outlet pipe, 503. second oil outlet pipe, 6. hydraulic lifting controller, 601. oil return valve, 7. travel controller, 701. travel valve, 702. gearbox, 8. synchronous belt, 9. generator. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1:

[0016] like Figure 1 As shown, this utility model discloses an integrated drive for a loader, including a frame 1. A diesel engine 2 is mounted on the top of the frame 1. A transmission wheel 3 is connected to the right end of the diesel engine 2. The transmission wheel 3 is connected to a gear oil pump 5 via a universal joint 4. The diesel engine 2 transmits power through the universal joint 4, reducing power loss during transmission. The gear oil pump 5 is also connected to a hydraulic lifting controller 6 and a travel controller 7. The gear oil pump 5 transmits power oil to the hydraulic lifting controller 6 and the travel controller 7, which is superior to transmission using a single synchronous belt. The transmission wheel 3 is connected to a generator 9 via a synchronous belt 8.

[0017] The hydraulic lifting controller 6 includes a return valve 601, which has five inlet pipes. The inlets of the return valve 601 are respectively connected to a distributor, a gear oil pump 5, an oil tank, and a steering gear. The steering gear is connected to two pipes of the return valve 601. The function of connecting to the distributor is to lift the loader, the function of connecting to the steering gear is to steer the loader, and the function of connecting to the oil tank is to return oil and recycle the power oil.

[0018] The travel controller 7 includes two travel valves 701, each with an upper and lower pipeline. The upper pipeline of one travel valve 701 is connected to the gear oil pump 5, and the lower pipeline is connected to the gearbox 702. The upper pipeline of the other travel valve 701 is also connected to the gearbox 702. The travel valve 702 controls the amount of oil entering the gearbox 702, and the gearbox 702 controls the travel speed of the loader based on the amount of oil transmitted. The lower pipeline is connected to a radiator, which cools the oil before returning it to the oil tank.

[0019] The gear oil pump 5 is a dual pump. Two oil inlet pipes 501 are provided on the left side of the gear oil pump 5. The two oil inlet pipes 501 are connected to an oil tank, which supplies oil to the gear oil pump 5. A first oil outlet pipe 502 and a second oil outlet pipe 503 are provided on the right side of the gear oil pump 5. The first oil outlet pipe 502 is connected to the travel valve 701, and the second oil outlet pipe 503 is connected to the return oil valve 601. The first oil outlet pipe 502 and the second oil outlet pipe 503 are symmetrically arranged with respect to the oil inlet pipes 501.

[0020] Working principle: When the loader starts, the generator 9 starts the diesel engine 2, which drives the transmission wheel 3 to rotate. The transmission wheel 3 transmits power to the gear oil pump 5 through the universal joint 4. The gear oil pump 5 draws power oil from the oil tank and passes it to the return valve 601 and the travel valve 701. The travel valve 701 transmits the power oil to the gearbox 702 for travel power support. The return valve 601 transmits the power oil to the distributor and steering gear to provide power support for the loader's lifting and steering. One path of the travel valve 701 sends the power oil to the radiator to cool it down before sending it back to the oil tank for recycling. One path of the return valve 601 directly transfers the power oil back to the oil tank for recycling.

[0021] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An integrated drive for a fork lift truck, characterized by, The utility model relates to a diesel engine truck, including frame (1), the frame (1) top is provided with diesel engine (2), diesel engine (2) right -hand member is connected with transmission wheel (3), transmission wheel (3) is connected with gear oil pump (5) through cross universal joint (4), gear oil pump (5) is connected with oil pressure lifting controller (6) and walking controller (7) simultaneously, transmission wheel (3) is connected with generator (9) through synchronous belt (8).

2. An integrated drive for a fork lift truck as defined in claim 1, wherein, The oil pressure lifting controller (6) comprises a return valve (601), and the return valve (601) is connected with a distributor.

3. An integrated drive for a fork lift truck as defined in claim 2 wherein, The walking controller (7) comprises a walking valve (701), and the walking valve (701) is connected with a gearbox (702).

4. An integrated drive for a fork lift truck as defined in claim 3 wherein, The gear oil pump (5) is a double pump, two oil inlet pipes (501) are arranged on the left side of the gear oil pump (5), a first oil outlet pipe (502) and a second oil outlet pipe (503) are arranged on the right side of the gear oil pump (5), the first oil outlet pipe (502) is connected with the walking valve (701), and the second oil outlet pipe (503) is connected with the return valve (601).

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