Cooling water circulation loader spraying device and control method

Abstract

The invention belongs to the technical field of engineering machinery braking, and particularly relates to a cooling water circulation loader spraying device and a control method. The cooling water tank is arranged on the loading machine; the spraying assembly is arranged on the axle, connected with the cooling water tank and used for cooling the brake disc; the water filtering tank is arranged below the brake disc and is used for collecting the cooling water sprayed by the spraying assembly; the water filtering tank is connected with the cooling water tank, and cooling water in the water filtering tank can flow back to the cooling water tank. The cooling water in the water filtering tank flows back to the cooling water tank, water sprayed by the spraying assembly can be collected, recycling of the cooling water is achieved, the layout of an existing cooling water tank is not changed, the water adding frequency is reduced, and the continuity of operation of the loading machine is improved. By arranging the filter assembly, pipeline blockage is avoided, and the filter screen is detachably arranged on the axle, so that the filter screen is convenient to replace or impurities are convenient to clean.

Description

Technical Field

[0001] The present invention belongs to the technical field of construction machinery braking, and particularly relates to a spray device and a control method for a loader with a cooling water circulation for cooling the brake discs on the axle of the loader. Background Art

[0002] When the loader brakes, a large amount of heat will be generated due to friction between the brake pads. In the case of frequent braking of the loader, if the brake pads cannot dissipate heat effectively, the brake pads may be worn and deformed due to overheating, and the service life of the brake pads will be shortened. Therefore, a spray device is needed to cool them down.

[0003] Due to the frequent braking of the loader, in the existing spray device, when the volume of the water tank supplying water to the spray device is small, the endurance time of the cooling water is short, and the water in the water tank will be consumed within a short time, resulting in the need to frequently add water to the water tank. This not only cannot ensure the continuity of the loader operation but also reduces the work efficiency.

[0004] If the driver does not notice the lack of water in the water tank in time and continues to work, it will cause wear of the brake disc, and the space on the loader is limited.

[0005] If the volume of the water tank is increased, although the use time of the spray device can be extended, it is inconvenient to install due to the too large volume of the water tank. Summary of the Invention

[0006] Aiming at the above problems existing in the prior art, the present invention provides a spray device and a control method for a loader with a cooling water circulation, which can improve the endurance time, reduce the frequency of adding water, and improve the operation efficiency under the condition of a certain volume of the cooling water tank.

[0007] To achieve the above object, the technical solutions provided by the present invention are as follows:

[0008] In a first aspect, the present application provides a spray device for a loader with a cooling water circulation, which is used to cool the brake discs on the axle of the loader, and includes:

[0009] A cooling water tank arranged on the loader;

[0010] A spray assembly arranged on the axle and connected to the cooling water tank, and the spray assembly is used to cool the brake discs;

[0011] A filter water tank arranged below the brake discs and used to collect the cooling water sprayed by the spray assembly; the filter water tank is connected to the cooling water tank, and the cooling water in the filter water tank can flow back to the cooling water tank.

[0012] Optionally, a filtering assembly is detachably arranged below the axle where the brake discs are located, and the cooling water passes through the filtering assembly for filtration and then enters the filter water tank after cooling the brake discs.

[0013] Optionally, the filtering component includes a filter screen.

[0014] Optionally, the cooling water tank is connected to the spraying component through a cooling water spraying pipeline, and a first water pump is arranged on the cooling water spraying pipeline.

[0015] Optionally, the filter water tank is connected to the cooling water tank through a cooling water recovery pipeline, and a second water pump is arranged on the cooling water recovery pipeline.

[0016] Optionally, the brake disc is arranged between the spraying component and the filter water tank.

[0017] Optionally, the axle includes a front axle and a rear axle, and the water outlet pipe of the cooling water tank, the water inlet pipe of the spraying component of the front axle, and the water inlet pipe of the spraying component of the rear axle are connected through a three-way joint.

[0018] Optionally, the water outlet pipe of the filter water tank of the front axle, the water outlet pipe of the filter water tank of the rear axle, and the water inlet pipe of the cooling water tank are connected through a three-way structure.

[0019] Optionally, the spraying component includes a nozzle, and the cooling water tank is connected to the nozzle.

[0020] In a second aspect, the present application also provides a control method for a spraying device of a loader with a cooling water circulation, including the following steps:

[0021] In response to the loader working, control the cooling water in the cooling water tank to enter the spraying component, and the spraying component sprays the cooling water to cool down the brake disc;

[0022] In response to the cooling water level in the cooling water tank < the set value of the lower liquid level and the cooling water level in the filter water tank ≥ the set value of the lower liquid level, control the cooling water in the filter water tank to flow back to the cooling water tank;

[0023] In response to the cooling water level in the cooling water tank < the set value of the lower liquid level and the cooling water level in the filter water tank ≤ the set value of the lower liquid level, inject water from the outside into the cooling water tank;

[0024] Control that the cooling water levels in both the cooling water tank and the filter water tank do not exceed the set value of the upper liquid level.

[0025] Compared with the prior art, the present application has at least the following beneficial effects:

[0026] By returning the cooling water in the filter water tank to the cooling water tank, the present invention can collect the water sprayed by the spraying assembly, realize the reuse of the cooling water, facilitate the use in a small space, neither change the existing layout of the cooling water tank, reduce the frequency of adding water, improve the continuity of the loader operation, and thus improve the operation efficiency. By setting up a filtering assembly, after the cold water cools the brake disc and then filters out impurities under the action of gravity, it flows into the filter water tank, ensuring the cleanliness of the cooling water entering the cooling water tank and avoiding blockage. The filter screen is detachably arranged on the axle, facilitating the replacement of the filter screen or the cleaning of impurities. Brief Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application 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 drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0028] Figure 1 Structural schematic diagram of a spraying device for a loader with a cooling water circulation in an embodiment of the present application;

[0029] Figure 2 For Figure 1 Enlarged view of part A in

[0030] Figure 3 Schematic diagram for reflecting the positional relationship between the filter screen and the filter water tank in an embodiment of the present application;

[0031] Figure 4 Overall schematic diagram of the spraying device;

[0032] Description of the reference numerals:

[0033] 1. Spraying assembly; 2. Cooling water tank; 3. First water pump; 4. Second water pump; 5. Cooling water spraying pipeline; 6. Cooling water recovery pipeline; 7. Front axle; 8. Rear axle; 9. Brake disc; 10. Mounting plate; 11. Filter water tank; 12. Filtering assembly. Detailed Embodiments

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. The description of at least one exemplary embodiment is actually only illustrative and in no way limits the present application and its application or use.

[0035] Embodiment 1:

[0036] As Figure 1As shown in the figure, a spraying device for a loader with a cooling water circulation is used to cool the brake disc 9 on the axle of the loader, and includes:

[0037] A cooling water tank 2 arranged on the loader;

[0038] A spraying assembly 1 arranged on the axle and connected to the cooling water tank 2, and the spraying assembly 1 is used to cool the brake disc 9;

[0039] A filter water tank 11 arranged below the brake disc 9 and used to collect the cooling water sprayed by the spraying assembly 1; the filter water tank 11 is connected to the cooling water tank 2, and the cooling water in the filter water tank 11 can flow back to the cooling water tank 2.

[0040] By flowing the cooling water in the filter water tank 11 back to the cooling water tank 2, the water sprayed by the spraying assembly 1 can be collected, realizing the reuse of the cooling water, which is convenient to use in a small space, does not change the existing layout of the cooling water tank 2, reduces the frequency of adding water, improves the continuity of the loader operation, and further improves the operation efficiency.

[0041] Embodiment 2:

[0042] The difference between this embodiment and Embodiment 1 is that: the spraying assembly 1 is arranged on the axle through a mounting plate 10, the brake disc 9 is arranged between the spraying assembly 1 and the filter water tank 11, and a filtering assembly 12 is detachably arranged below the brake disc 9 on the axle. After the cooling water cools the brake disc 9, it is filtered by the filtering assembly 12 and then enters the filter water tank 11. In this embodiment, the filtering assembly 12 is a filter screen, and the filter screen is installed on the bottom wall of the drive axle through bolts. The cold water sprayed by the spraying assembly 1 cools the brake disc 9 and is first filtered under the action of gravity to remove impurities, and then flows into the filter water tank 11, ensuring the cleanliness of the cooling water entering the cooling water tank 2 and avoiding blockage. The filter screen is detachably arranged on the axle, which is convenient for replacing the filter screen or cleaning impurities.

[0043] The cooling water tank 2 is connected to the spraying assembly 1 through a cooling water spraying pipeline 5, and a first water pump 3 is arranged on the cooling water spraying pipeline 5. In this embodiment, the spraying assembly 1 adopts a nozzle. Under the action of the first water pump 3, the cooling water in the cooling water tank 2 flows through the cooling water spraying pipeline 5 and is sprayed out from the nozzle, so as to cool the brake disc 9.

[0044] The filter water tank 11 is connected to the cooling water tank 2 through a cooling water recovery pipeline 6, and a second water pump 4 is arranged on the cooling water recovery pipeline 6. Under the action of the second water pump 4, the cooling water in the filter water tank 11 flows back into the cooling water tank 2 through the cooling water recovery pipeline 6.

[0045] The axle includes a front axle 7 and a rear axle 8. The outlet pipe of the cooling water tank 2, the inlet pipe of the spray assembly 1 of the front axle 7, and the inlet pipe of the spray assembly 1 of the rear axle 8 are connected through a three-way joint. The outlet pipe of the filter water tank 11 of the front axle 7, the outlet pipe of the filter water tank 11 of the rear axle 8, and the inlet pipe of the cooling water tank 2 are connected through a three-way structure. Thus, the front axle 7 and the rear axle 8 share a cooling water tank 2.

[0046] Embodiment 3:

[0047] This embodiment provides a control method for the spray device of a loader with a cooling water circulation, including the following steps:

[0048] In response to the loader working, control the first water pump 3 to work, send the cooling water in the cooling water tank 2 into the spray assembly 1, and the spray assembly 1 sprays the cooling water to cool down the brake disc 9;

[0049] In response to the cooling water level in the cooling water tank 2 < the set value of the lower liquid level limit and the cooling water level in the filter water tank 11 ≥ the set value of the lower liquid level limit, control the cooling water in the filter water tank 11 to flow back to the cooling water tank 2;

[0050] In response to the cooling water level in the cooling water tank 2 < the set value of the lower liquid level limit and the cooling water level in the filter water tank 11 ≤ the set value of the lower liquid level limit, water is injected into the cooling water tank 2 from the outside;

[0051] Control that the cooling water level in the cooling water tank 2 and the cooling water level in the filter water tank 11 do not exceed the set value of the upper liquid level limit.

[0052] Level sensors are installed in both the cooling water tank 2 and the filter water tank 11. The signal output ends of the level sensors are connected to the controller, and the controller automatically regulates according to the water volume in the cooling water tank 2 and the filter water tank 11.

[0053] When in response to the cooling water level in the cooling water tank 2 < the set value of the lower liquid level limit and the cooling water level in the filter water tank 11 ≥ the set value of the lower liquid level limit, the water in the filter water tank 11 will flow back to the cooling water tank 2, avoiding the second water pump 4 from idling due to too low water level in the filter water tank 11, and avoiding the water pump from working frequently, thus prolonging the service life. When the cooling water level in the cooling water tank 2 < the set value of the lower liquid level limit and the cooling water level in the filter water tank 11 ≤ the set value of the lower liquid level limit, water is automatically injected into the cooling water tank 2 or an audible and visual prompt for adding water is issued, avoiding wear caused by the inability of the brake disc 9 to dissipate heat in time. And throughout the process, control that the cooling water level in the cooling water tank 2 and the cooling water level in the filter water tank 11 do not exceed the set value of the upper liquid level limit, avoiding overflow due to excessive water addition.

[0054] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0055] The above are only the preferred embodiments of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present application, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present application.

Claims

1. A loader spraying device for cooling water circulation, which is used to cool the brake discs on the axle of the loader, is characterized in that, Comprising: A cooling water tank arranged on a loader; A spray assembly arranged on an axle and connected to the cooling water tank, the spray assembly being used to cool the brake disc; A filter water tank arranged below the brake disc and used to collect the cooling water sprayed by the spray assembly; the filter water tank is connected to the cooling water tank, and the cooling water in the filter water tank can flow back to the cooling water tank.

2. The spray device for a loader with a cooling water circulation according to claim 1, characterized in that, A filter assembly is detachably arranged below the brake disc on the axle, and the cooling water passes through the filter assembly for filtration after cooling the brake disc and then enters the filter water tank.

3. A spray device for a loader with a cooling water circulation according to claim 1, characterized in that, The filter assembly includes a filter screen.

4. The spray device for a loader with a cooling water circulation according to claim 1, characterized in that, The cooling water tank is connected to the spray assembly through a cooling water spray pipeline, and a first water pump is arranged on the cooling water spray pipeline.

5. The spray device for a loader with a cooling water circulation according to claim 1, characterized in that, The filter water tank is connected to the cooling water tank through a cooling water recovery pipeline, and a second water pump is arranged on the cooling water recovery pipeline.

6. The spray device for a loader with a cooling water circulation according to claim 1, characterized in that, The brake disc is arranged between the spray assembly and the filter water tank.

7. The spraying device for a loader with a cooling water circulation according to claim 1, characterized in that, The axle includes a front axle and a rear axle, and the water outlet pipe of the cooling water tank, the water inlet pipe of the spray assembly of the front axle and the water inlet pipe of the spray assembly of the rear axle are connected through a three-way joint.

8. The loader spraying device for cooling water circulation according to claim 7, characterized in that, The filter water tank outlet pipe of the front axle, the filter water tank outlet pipe of the rear axle and the water inlet pipe of the cooling water tank are connected through a three-way structure.

9. The spray device for a loader with a cooling water circulation according to claim 1, characterized in that, The spray assembly includes a nozzle, and the cooling water tank is connected to the nozzle.

10. A control method for a spray device of a loader with a cooling water circulation, characterized in that, Including the following steps: In response to the loader working, controlling the cooling water in the cooling water tank to enter the spray assembly, and the spray assembly sprays the cooling water to cool the brake disc; In response to the cooling water level in the cooling water tank < the set value of the lower liquid level and the cooling water level in the filter water tank ≥ the set value of the lower liquid level, controlling the cooling water in the filter water tank to flow back to the cooling water tank; In response to the cooling water level in the cooling water tank < the set value of the lower liquid level and the cooling water level in the filter water tank ≤ the set value of the lower liquid level, injecting water into the cooling water tank from the outside; Controlling that the cooling water level in the cooling water tank and the cooling water level in the filter water tank do not exceed the set value of the upper liquid level.

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