Hydrostatic loading machine

Abstract

The utility model discloses a hydrostatic loader which comprises an engine, a hydraulic pump set, a balancing weight, a hydraulic motor, a gearbox, a transmission shaft, a front axle and a rear axle. The engine, the hydraulic pump set and the balancing weight are all arranged at the tail of the whole machine, and the gearbox and the hydraulic motor are arranged in the middle of the whole machine. The power output end of the engine is in transmission connection with the hydraulic pump set, the hydraulic pump set is in transmission connection with the hydraulic motor through a hydraulic pipeline, the hydraulic motor is in transmission connection with a gearbox power take-off port, the gearbox is in transmission connection with the transmission shaft, and the transmission shaft drives the front axle and the rear axle to move. Therefore, the engine, the hydraulic pump set and other components are placed on the tail portion of the whole machine, the weight of a part of counter weight is improved, the weight of the counter weight can be reduced in design, and therefore the operation weight of the whole machine is reduced. And the manufacturing cost of the counter weight is correspondingly reduced. And the oil consumption of the whole machine can be effectively reduced by reducing the operation weight of the whole machine.

Description

Technical Field

[0001] The utility model relates to the technical field of loaders, in particular to a static hydraulic loader. Background Art

[0002] A loader is a type of earthwork machinery widely used in construction projects such as roads, railways, buildings, hydropower, ports, and mines. It is mainly used to shovel bulk materials such as soil, sand, lime, and coal, and can also perform light excavation operations on ore and hard soil.

[0003] Traditional loaders usually use dual-variable transmission (torque converter-gearbox) to drive the whole machine. The traditional dual-variable is directly connected to the engine as a whole. However, there is also a hydrostatic loader on the market. This type of hydrostatic loader uses a hydraulic travel pump and travel motor to replace the traditional gearbox to provide driving power for the whole vehicle. Compared with traditional loaders, the transmission efficiency of hydrostatic loaders is improved by about 5%, which can save 20% to 30% of fuel consumption.

[0004] However, the engine, hydraulic travel pump and other components of the existing static hydraulic loader still adopt the layout of the traditional dual-variable transmission structure, and a heavier counterweight block still needs to be set at the rear of the whole machine, resulting in a heavier weight of the whole machine and requiring a certain amount of fuel consumption. Utility Model Content

[0005] The utility model aims to provide a static hydraulic loader, which has the advantage of reducing the weight of the whole machine.

[0006] In order to achieve the above purpose, the solution of the utility model is:

[0007] A hydrostatic loader comprises an engine, a hydraulic pump group, a counterweight, a hydraulic motor, a gearbox, a transmission shaft and front and rear axles;

[0008] The engine, hydraulic pump group and counterweight are all arranged at the rear of the whole machine, and the gearbox and hydraulic motor are arranged in the middle of the whole machine; the power output end of the engine is transmission connected with the hydraulic pump group, the hydraulic pump group is transmission connected with the hydraulic motor through a hydraulic pipeline, the hydraulic motor is transmission connected with the gearbox power take-off port, the gearbox is transmission connected with the transmission shaft, and the transmission shaft drives the front and rear axles to move.

[0009] Furthermore, it also includes a fuel tank, which is also arranged at the tail of the whole machine and is connected to the engine.

[0010] Furthermore, it also includes a radiator, which is arranged on the side between the middle and the rear of the whole machine.

[0011] Furthermore, there are two radiators, which are arranged oppositely on the two side surfaces between the middle and the rear of the whole machine.

[0012] Furthermore, the engine is placed horizontally at the rear of the whole machine and is connected and fixed to the counterweight block through a plurality of brackets; the central axis of the engine's crankshaft is parallel to the central axis of the front and rear axles.

[0013] Furthermore, the hydraulic pump group and the engine are arranged side by side in the left and right directions.

[0014] Furthermore, the front and rear axles include a front axle and a rear axle, the front and rear output ends of the gearbox are drivingly connected to the transmission shaft, and the front and rear ends of the transmission shaft respectively drive the front axle and the rear axle to move.

[0015] After adopting the above technical solution, the engine and hydraulic pump group and other components are placed at the tail of the whole machine, which increases the weight of some counterweights. Therefore, the counterweight block of this solution can be designed to reduce weight, thereby reducing the operating weight of the whole machine. The manufacturing cost of the counterweight is reduced accordingly. The reduction in the operating weight of the whole machine can effectively reduce the fuel consumption of the whole machine.

[0016] And a higher tipping load can be achieved at a lower overall machine operating weight.

[0017] In this solution, the daily maintenance parts of the engine (oil filter, oil filter, air filter, etc.) and the hydraulic pump group are arranged at the tail of the whole machine, which is more convenient for inspection and maintenance.

[0018] The middle part of the machine body where the gearbox and hydraulic motor are located has fewer components, which facilitates the layout of the hydraulic pipelines, as well as the inspection and maintenance of these two components. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a partial structural perspective diagram of an embodiment of the utility model;

[0020] Figure 2 Another three-dimensional schematic diagram of a partial structure of an embodiment of the utility model;

[0021] Figure 3 It is a schematic top view of part of the structure of an embodiment of the utility model.

[0022] Explanation of reference numerals: engine 1, hydraulic pump unit 2, counterweight 3, hydraulic motor 4, gearbox 5, front and rear axles 6, rear axle 61, hydraulic pipeline 7, fuel tank 8, radiator 9, bracket 10. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] like Figures 1 to 3 As shown, a static hydraulic loader of the utility model includes an engine 1, a hydraulic pump group 2, a counterweight 3, a hydraulic motor 4, a gearbox 5, a transmission shaft (not shown) and front and rear axles 6. The components in the drawings of this embodiment are schematically drawn.

[0025] The engine 1, hydraulic pump group 2 and counterweight 3 are all arranged at the rear of the whole machine, and the gearbox 5 and hydraulic motor 4 are arranged in the middle of the whole machine; the power output end of the engine 1 is transmission connected with the hydraulic pump group 2, the hydraulic pump group 2 is transmission connected with the hydraulic motor 4 through the hydraulic pipeline 7, the hydraulic motor 4 is transmission connected with the power take-off port of the gearbox 5, the gearbox 5 is transmission connected with the transmission shaft, and the transmission shaft drives the front and rear axles 6 to move.

[0026] Thus, the engine 1 and the hydraulic pump group 2 are placed at the rear of the whole machine, which increases the weight of some counterweights. Therefore, the counterweight block 3 of this solution can be designed to reduce weight, thereby reducing the operating weight of the whole machine. The manufacturing cost of the counterweight block 3 is reduced accordingly. The reduction in the operating weight of the whole machine can effectively reduce the fuel consumption of the whole machine.

[0027] Higher tipping loads can be achieved at lower machine operating weight.

[0028] In this solution, the daily maintenance parts (oil filter, machine filter, air filter, etc.) of the engine 1 and the hydraulic pump group 2 are arranged at the rear of the whole machine, which is more convenient for inspection and maintenance.

[0029] The middle part of the whole machine body where the gearbox 5 and the hydraulic motor 4 are located has fewer components, which is convenient for the arrangement of the hydraulic pipeline 7, as well as the inspection and maintenance of these two components.

[0030] This embodiment also includes a fuel tank 8, which is also arranged at the tail of the whole machine, and the fuel tank 8 is connected to the engine 1. The counterweight block 3 can also be reduced in weight, and the fuel tank 8 of this embodiment can be arranged below the engine 1.

[0031] The radiator 9 is also included. In this embodiment, there are two radiators 9, which are respectively arranged on the two sides between the middle and the tail of the whole machine. Through reasonable distribution and layout, space can be saved, heat dissipation of the engine 1 and the hydraulic pump group 2 can be facilitated, and the fan speed can be adjusted according to the load of the whole machine to reduce the energy consumption of the whole machine.

[0032] Specifically, the engine 1 can be placed horizontally at the rear of the whole machine, and connected and fixed to the counterweight 3 through a plurality of brackets 10; the central axis of the crankshaft of the engine 1 is parallel to the central axis of the front and rear axles 6.

[0033] The hydraulic pump group 2 can be arranged side by side with the engine 1 in a horizontal manner.

[0034] The front and rear axles 6 of this embodiment include a front axle (not shown) and a rear axle 61 , and the front and rear output ends of the gearbox 5 are drivingly connected to the transmission shaft, and the front and rear ends of the transmission shaft respectively drive the front axle and the rear axle 61 to move.

[0035] The above is only a preferred embodiment of the utility model, and the protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, equivalent changes and modifications without departing from the principle of the utility model should still fall within the protection scope of the utility model.

[0036] In the description of the embodiments of the present application, it should be understood that the indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when in use, or is the orientation or position relationship commonly understood by technical personnel in this field. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

Claims

1. A hydrostatic loader, characterized in that: It includes engine, hydraulic pump unit, counterweight, hydraulic motor, gearbox, transmission shaft and front and rear axles; The engine, hydraulic pump group and counterweight are all arranged at the rear of the whole machine, and the gearbox and hydraulic motor are arranged in the middle of the whole machine; the power output end of the engine is transmission connected with the hydraulic pump group, the hydraulic pump group is transmission connected with the hydraulic motor through a hydraulic pipeline, the hydraulic motor is transmission connected with the gearbox power take-off port, the gearbox is transmission connected with the transmission shaft, and the transmission shaft drives the front and rear axles to move.

2. A hydrostatic loader according to claim 1, characterized in that: It also includes a fuel tank, which is also arranged at the tail of the whole machine and is connected to the engine.

3. A hydrostatic loader according to claim 1, characterized in that: The device also includes a radiator, which is arranged on the side between the middle and the tail of the whole device.

4. A hydrostatic loader according to claim 3, characterized in that: There are two radiators, which are respectively arranged on the two side surfaces between the middle and the rear of the whole machine.

5. A hydrostatic loader according to claim 1, characterized in that: The engine is placed horizontally at the rear of the whole machine and is connected and fixed to the counterweight block through a plurality of brackets; the central axis of the engine crankshaft is parallel to the central axis of the front and rear axles.

6. A hydrostatic loader according to claim 1 or 5, characterized in that: The hydraulic pump group and the engine are arranged side by side in the left and right lateral direction.

7. A hydrostatic loader according to claim 1, characterized in that: The front and rear axles include a front axle and a rear axle. The front and rear output ends of the gearbox are connected to the transmission shaft, and the front and rear ends of the transmission shaft drive the front axle and the rear axle to move respectively.

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