A power switching system of a garbage compression truck

Abstract

The application discloses a power switching system of a garbage compression vehicle, which comprises a power switching circuit and a compression feed motion component installed on a compression feed module of the garbage compression vehicle. The power switching circuit comprises a power supply, a travel switch type relay, an electric hydraulic system and a diesel generator. The positive pole of the power supply is connected to the travel switch type relay. The normally closed contact of the travel switch type relay is connected to the diesel generator, and the normally open contact is connected to the electric hydraulic system. The diesel generator and the electric hydraulic system are both connected to the negative pole of the power supply. The compression feed motion component is connected to the travel switch type relay, so that when the compression feed is performed, the compression feed motion component triggers the normally open contact to be closed and the normally closed contact to be disconnected. Therefore, when the garbage compression vehicle performs the compression feed, the power source is automatically switched to the electric hydraulic system through the cooperation of the compression feed motion component and the travel switch type relay, so that the electric hydraulic system is driven, the idling time is reduced, the loss of the garbage compression vehicle is reduced, and the cost is saved.

Description

Technical Field

[0001] This application relates to the field of environmental protection equipment technology, and more specifically, to a power switching system for a garbage compactor truck. Background Technology

[0002] With increasingly stringent environmental protection requirements, various industries are paying more attention to energy conservation and emission reduction, and the sanitation sector is no exception. In the waste disposal process, compactor trucks are key equipment, and the energy consumption and environmental performance of their power systems have become a major focus.

[0003] Currently, most compression compactors on the market use diesel-powered hydraulic systems. When the compactor starts to compress and feed material at the rear, the scraper needs to be activated, causing the engine to idle for an extended period. Idling can easily damage components, increase carbon buildup in the engine, lead to injector malfunctions, and shorten engine lifespan. Furthermore, engine idling time can account for 30%-50% of the total operating time, consuming a large amount of diesel fuel and resulting in resource waste.

[0004] Therefore, how to develop a power system for garbage compactors to reduce idling time, decrease wear and tear on the garbage compactors, and save costs is an issue that needs attention. Utility Model Content

[0005] In view of the above problems, this application provides a power switching system for a garbage compactor truck to reduce idling time, reduce wear and tear on the garbage compactor truck, and save costs.

[0006] To achieve the above objectives, the following specific solutions are proposed:

[0007] A power switching system for a garbage compactor truck, characterized in that it includes a power switching circuit and a compression feeding moving component installed on the compression feeding module of the garbage compactor truck, wherein the power switching circuit includes a power supply, a limit switch type relay, an electro-hydraulic system, and a diesel generator;

[0008] The positive terminal of the power supply is connected to the limit switch type relay, the normally closed contact of the limit switch type relay is connected to the diesel generator, the normally open contact of the limit switch type relay is connected to the electro-hydraulic system, and both the diesel generator and the electro-hydraulic system are connected to the negative terminal of the power supply.

[0009] The compression feeding motion component is connected to the limit switch type relay so that when the compression feeding module performs compression feeding, the compression feeding motion component triggers the normally open contact to close and the normally closed contact to open.

[0010] Optionally, the electro-hydraulic system includes an oil tank (1), a motor (2), a hydraulic pump (3), a solenoid directional valve (5), a check valve (7), an oil filter (8), and an oil cylinder (11).

[0011] The motor (2) is used to drive the hydraulic pump (3) to operate;

[0012] The oil tank (1) is connected to the oil suction port of the hydraulic pump (3) through the oil filter (8), and the hydraulic pump (3) is connected to the oil cylinder (11) in sequence through the check valve (7) and the solenoid directional valve (5).

[0013] Optionally, the electro-hydraulic system may also include an overflow valve (12) connected to the hydraulic pump (3).

[0014] The hydraulic pump (3) limits the pressure of the electro-hydraulic system through the relief valve (12).

[0015] Optionally, the electro-hydraulic system further includes a throttle valve (15).

[0016] The hydraulic pump (3) is connected to the oil cylinder (11) in sequence via the check valve (7), the throttle valve (15), and the solenoid directional valve (5).

[0017] Optionally, the electro-hydraulic system also includes a hand-cranked pump (10), a manual directional valve (4), and a hydraulic check valve (17).

[0018] The oil inlet of the hand pump (10) is connected to the oil tank (1).

[0019] The hand-cranked pump (10) is connected to the oil cylinder (11) in sequence via the manual reversing valve (4), the hydraulic control check valve (17).

[0020] Optionally, the electro-hydraulic system further includes an air filter (6);

[0021] The oil tank (1) is connected to the atmosphere through the air filter (6) to control the air pressure inside the oil tank (1).

[0022] Optionally, the electro-hydraulic system may also include a shock-resistant pressure gauge (9);

[0023] The shock-resistant pressure gauge (9) is used to measure and display the pressure of the electro-hydraulic system.

[0024] Optionally, the electro-hydraulic system further includes a hydraulic pressure relay (14).

[0025] The hydraulic pressure relay (14) is used to trigger an electrical signal by monitoring the electro-hydraulic system.

[0026] Optionally, the electro-hydraulic system may further include an accumulator (13) connected to the electro-hydraulic pressure relay (14).

[0027] The accumulator (13) is used to store pressure energy and buffer pressure fluctuations in the electro-hydraulic system.

[0028] Optionally, the electro-hydraulic system also includes a level switch (16) installed inside the oil tank (1).

[0029] The level switch (16) is used to monitor the oil level in the oil tank (1) and issue an alarm signal when the oil level reaches the warning value.

[0030] Using the above technical solution, the power switching system of the garbage compactor truck of this application includes a power switching circuit and a compression feeding moving part installed on the compression feeding module of the garbage compactor truck. The power switching circuit includes a power supply, a limit switch type relay, an electro-hydraulic system, and a diesel generator. The positive terminal of the power supply is connected to the limit switch type relay, its normally closed contact is connected to the diesel generator, and its normally open contact is connected to the electro-hydraulic system. Both the diesel generator and the electro-hydraulic system are connected to the negative terminal of the power supply. The compression feeding moving part is connected to the limit switch type relay so that when compression feeding occurs, the compression feeding moving part triggers the normally open contact to close and the normally closed contact to open. Therefore, when the garbage compactor truck is compressing, the power source is automatically switched to the electro-hydraulic system through the cooperation of the compression feeding moving part and the limit switch type relay. This reduces idling time, lowers wear and tear on the garbage compactor truck, and saves costs under the drive of the electro-hydraulic system. Attached Figure Description

[0031] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0032] Figure 1 This is a schematic diagram of the power switching system of a garbage compactor truck provided in an embodiment of this application;

[0033] Figure 2 This is a schematic diagram of an electro-hydraulic system provided in an embodiment of this application.

[0034] In the attached diagram, LS - Limit Switch, NO - Normally Open Contact, NC - Normally Closed Contact, 1 - Oil Tank, 2 - Motor, 3 - Hydraulic Pump, 4 - Manual Directional Valve, 5 - Solenoid Directional Valve, 6 - Air Filter, 7 - Check Valve, 8 - Oil Filter, 9 - Shock-resistant Pressure Gauge, 10 - Hand Pump, 11 - Oil Cylinder, 12 - Relief Valve, 13 - Accumulator, 14 - Hydraulic Pressure Relay, 15 - Throttle Valve, 16 - Level Switch, 17 - Hydraulic Check Valve. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] Figure 1 An optional structure for a power switching system of a garbage compactor truck provided in this application embodiment, such as... Figure 1 As shown, the structure of the power switching system may include:

[0037] Power switching circuit and compression feeding moving parts.

[0038] The compression feeding moving parts can be installed on the compression feeding module of the garbage compactor. The compression feeding module can perform garbage compression feeding operations. The power switching circuit can include a power supply, a limit switch relay, an electro-hydraulic system, and a diesel generator.

[0039] Specifically, the positive terminal of the power supply is connected to the limit switch type relay. The normally closed contact of the limit switch type relay is connected to the diesel generator. The normally open contact of the limit switch type relay is connected to the electro-hydraulic system. Both the diesel generator and the electro-hydraulic system are connected to the negative terminal of the power supply.

[0040] The power supply can be an adapter for the garbage compactor truck, such as a 12V DC power supply or a 24V DC power supply. The limit switch relay can be an Omron D4V-2 series limit switch relay. This model offers various contact types and operating characteristics to suit different installation spaces and control requirements. It has a large contact capacity, allowing direct control of heavy-load equipment such as electro-hydraulic systems. Furthermore, this model offers high reliability and stability, enabling long-term stable operation in harsh working environments. Alternatively, a Schneider XCKJ series limit switch relay can be used. This model features a robust and durable housing design with a high protection level, making it suitable for harsh industrial environments such as garbage compactors. It offers high operating accuracy, precisely triggering contact switching during the compression and feeding action to ensure reliable system operation.

[0041] Furthermore, the compression feeding moving parts can be connected to a limit switch type relay. Understandably, when the compression feeding module performs compression feeding, the compression feeding moving parts trigger the normally open contacts to close and the normally closed contacts to open, thus disconnecting from the diesel generator and connecting to the electro-hydraulic system, allowing the electro-hydraulic system to drive the compression feeding operation. Since the electro-hydraulic system replaces the diesel generator to drive the compression feeding operation, it reduces hydraulic oil consumption and noise pollution, reducing environmental pollution. It also reduces vehicle fuel consumption, avoids injector failure caused by increased carbon deposits from diesel combustion, extends vehicle lifespan, and reduces idling time, thus minimizing harm to the vehicle.

[0042] The power switching system for the garbage compactor truck provided in this embodiment includes a power switching circuit and a compression feeding moving part installed on the compression feeding module of the garbage compactor truck. The power switching circuit includes a power supply, a limit switch type relay, an electro-hydraulic system, and a diesel generator. The positive terminal of the power supply is connected to the limit switch type relay, its normally closed contact is connected to the diesel generator, and its normally open contact is connected to the electro-hydraulic system. Both the diesel generator and the electro-hydraulic system are connected to the negative terminal of the power supply. The compression feeding moving part is connected to the limit switch type relay so that when compression feeding occurs, the compression feeding moving part triggers the normally open contact to close and the normally closed contact to open. Therefore, when the garbage compactor truck is compressing and feeding, the power source is automatically switched to the electro-hydraulic system through the cooperation of the compression feeding moving part and the limit switch type relay. This reduces idling time, lowers wear and tear on the garbage compactor truck, and saves costs under the drive of the electro-hydraulic system.

[0043] In some embodiments of this application, the electro-hydraulic system mentioned in the above embodiments is further described, such as... Figure 2As shown, the electro-hydraulic system may include an oil tank 1, a motor 2, a hydraulic pump 3, a solenoid directional valve 5, a check valve 7, an oil filter 8, and an oil cylinder 11.

[0044] Specifically, the oil tank 1 can be connected to the suction port of the hydraulic pump 3 via the oil filter 8. The hydraulic pump 3 is connected to the oil cylinder 11 in sequence via the check valve 7 and the solenoid directional valve 5.

[0045] The oil tank 1 stores hydraulic oil, ensuring oil cleanliness and temperature stability. Equipped with an air filter and oil filter 8, the oil tank 1 reduces oil contamination and extends the lifespan of pumps and valves. By rationally designing the volume of the oil tank 1, oil overheating can be avoided, thereby reducing aging of seals due to high temperatures.

[0046] Motor 2 is used to drive hydraulic pump 3. Motor 2 can be a variable frequency motor, thereby adjusting the speed according to the load and reducing ineffective energy consumption during idling.

[0047] Hydraulic pump 3 can supply pressurized oil to the electro-hydraulic system. Hydraulic pump 3 can be a variable displacement pump (such as a pressure-compensated pump) that automatically reduces flow rate at idle speed, minimizing wasted power output. Hydraulic pump 3 can avoid prolonged high-pressure overflow, reducing pump wear.

[0048] The solenoid directional valve 5 can electrically control the direction of the hydraulic cylinder, linking with the control system to precisely control the action time and reduce unnecessary operation. The neutral position function of the solenoid directional valve 5 can be selected as O-type (closed oil circuit) or M-type (unloading oil circuit), thereby reducing idle pressure loss.

[0049] The one-way valve 7 can prevent oil backflow, avoid the backflow of oil when the pump stops, and prevent the pump from being sucked dry when restarting, thus protecting the pump and reducing delay.

[0050] Oil filter 8 can be used to filter impurities in oil. By cleaning the oil, the life of hydraulic pumps, valves and cylinder seals can be significantly extended, reducing downtime costs.

[0051] Hydraulic cylinder 11 is used to perform the compression action. Hydraulic cylinder 11 can be a cylinder with a cushioning design to reduce impact losses. Regularly checking the sealing of hydraulic cylinder 11 prevents internal leakage that could lead to repeated compression, thereby increasing the pump's operating time.

[0052] Based on the description of the electro-hydraulic system in the foregoing embodiments, some embodiments of this application further describe the electro-hydraulic system mentioned in the above embodiments, such as... Figure 2 As shown, the electro-hydraulic system may also include a relief valve 12.

[0053] Specifically, the relief valve 12 can be connected to the hydraulic pump 3. The hydraulic pump 3 can limit the pressure of the electro-hydraulic system through the relief valve 12.

[0054] Understandably, relief valve 12 limits the maximum pressure of the electro-hydraulic system. By setting the pressure appropriately, it avoids long-term overflow and heat generation, and prevents the relief valve from continuously leaking oil and causing energy consumption if the pump flow is not unloaded during idling.

[0055] Based on the description of the electro-hydraulic system in the foregoing embodiments, some embodiments of this application further describe the electro-hydraulic system mentioned in the above embodiments, such as... Figure 2 As shown, the electro-hydraulic system may also include a throttle valve 15.

[0056] Specifically, the hydraulic pump 3 can be connected to the oil cylinder 11 in sequence via the check valve 7, the throttle valve 15, and the solenoid directional valve 5.

[0057] Understandably, the throttle valve 15 can be used to regulate flow rate and reduce impact losses caused by excessively fast action by optimizing the cylinder speed to match load requirements.

[0058] Based on the description of the electro-hydraulic system in the foregoing embodiments, some embodiments of this application further describe the electro-hydraulic system mentioned in the above embodiments, such as... Figure 2 As shown, the electro-hydraulic system may also include a hand-cranked pump 10, a manual directional valve 4, and a hydraulically controlled check valve 17.

[0059] Specifically, the oil suction port of the hand-cranked pump 10 is connected to the oil tank 1. The hand-cranked pump 10 is connected to the oil cylinder 11 in sequence via the manual reversing valve 4 and the hydraulic control check valve 17.

[0060] Understandably, the manual directional valve 4 can be used to manually control the direction of the hydraulic cylinder. After operation, it should be promptly reset to the neutral position to cut off the oil circuit, prevent the pump oil from being depressurized through the valve's neutral position, and reduce idling energy consumption.

[0061] The hand-cranked pump 10 can be used for emergency manual oil supply. In the event of a system failure, the hand-cranked pump 10 can replace the electric pump, avoiding further damage caused by forced start-up.

[0062] The hydraulic check valve 17 can be used to lock the position of the hydraulic cylinder. After locking the position of the hydraulic cylinder, the hydraulic check valve 17 can prevent the hydraulic cylinder from sinking (such as when the lifting arm falls unexpectedly), reducing the energy consumption of repeated adjustment actions.

[0063] Based on the description of the electro-hydraulic system in the foregoing embodiments, some embodiments of this application further describe the electro-hydraulic system mentioned in the above embodiments, such as... Figure 2 As shown, the electro-hydraulic system may also include an air filter 6.

[0064] Specifically, the fuel tank is connected to the atmosphere through the air filter 6 to control the air pressure inside the fuel tank 1.

[0065] Understandably, air filter 6 can be used to maintain the air pressure balance inside and outside the oil tank, prevent contaminants from entering the oil tank, and protect hydraulic components (such as pumps and valves) from particulate wear.

[0066] Based on the description of the electro-hydraulic system in the foregoing embodiments, some embodiments of this application further describe the electro-hydraulic system mentioned in the above embodiments, such as... Figure 2 As shown, the electro-hydraulic system may also include a shock-resistant pressure gauge 9.

[0067] Specifically, the shock-resistant pressure gauge 9 can be used to measure and display the pressure of electro-hydraulic systems. By monitoring the pressure in real time, it avoids long-term overpressure operation of the system (such as in the event of a relief valve failure) and reduces component wear.

[0068] Based on the description of the electro-hydraulic system in the foregoing embodiments, some embodiments of this application further describe the electro-hydraulic system mentioned in the above embodiments, such as... Figure 2 As shown, the electro-hydraulic system may also include a hydraulic pressure relay 14.

[0069] Specifically, the hydraulic pressure relay 14 can be used to trigger an electrical signal by monitoring the electro-hydraulic system.

[0070] Understandably, the hydraulic pressure relay 14 is used for pressure signal conversion. By setting a reasonable pressure threshold, it automatically controls the start-up, shutdown, or unloading of the pump, thereby avoiding no-load operation.

[0071] Based on the description of the electro-hydraulic system in the foregoing embodiments, some embodiments of this application further describe the electro-hydraulic system mentioned in the above embodiments, such as... Figure 2 As shown, the electro-hydraulic system may also include an accumulator 13.

[0072] Specifically, the accumulator 13 is connected to the hydraulic pressure relay 14. The accumulator can be used to store pressure energy and buffer pressure fluctuations in the electro-hydraulic system.

[0073] Understandably, the accumulator 13 stores energy during the intervals between compression actions, which can reduce the frequency of pump start-stop or high-pressure operation time, and protect pipelines and valves by absorbing shock pressure.

[0074] Based on the description of the electro-hydraulic system in the foregoing embodiments, some embodiments of this application further describe the electro-hydraulic system mentioned in the above embodiments, such as... Figure 2 As shown, the electro-hydraulic system can also include a level switch 16.

[0075] Specifically, the level switch 16 is installed inside the oil tank 1. The level switch can be used to monitor the oil level in the oil tank 1 and issue an alarm signal when the oil level reaches the warning value.

[0076] Understandably, the level switch 16 can prevent insufficient oil from causing pump cavitation damage and avoid system shutdown due to oil shortage.

[0077] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0078] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The various embodiments can be combined as needed, and the same or similar parts can be referred to each other.

[0079] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A power switching system for a garbage compactor truck, characterized in that, It includes a power switching circuit and a compression feeding moving part installed on the compression feeding module of the garbage compactor. The power switching circuit includes a power supply, a limit switch type relay, an electro-hydraulic system, and a diesel generator. The positive terminal of the power supply is connected to the limit switch type relay, the normally closed contact of the limit switch type relay is connected to the diesel generator, the normally open contact of the limit switch type relay is connected to the electro-hydraulic system, and both the diesel generator and the electro-hydraulic system are connected to the negative terminal of the power supply. The compression feeding motion component is connected to the limit switch type relay so that when the compression feeding module performs compression feeding, the compression feeding motion component triggers the normally open contact to close and the normally closed contact to open.

2. The power switching system according to claim 1, characterized in that, The electro-hydraulic system includes an oil tank (1), a motor (2), a hydraulic pump (3), a solenoid directional valve (5), a check valve (7), an oil filter (8), and an oil cylinder (11). The motor (2) is used to drive the hydraulic pump (3) to operate; The oil tank (1) is connected to the oil suction port of the hydraulic pump (3) through the oil filter (8), and the hydraulic pump (3) is connected to the oil cylinder (11) in sequence through the check valve (7) and the solenoid directional valve (5).

3. The power switching system according to claim 2, characterized in that, The electro-hydraulic system also includes an overflow valve (12) connected to the hydraulic pump (3). The hydraulic pump (3) limits the pressure of the electro-hydraulic system through the relief valve (12).

4. The power switching system according to claim 2, characterized in that, The electro-hydraulic system also includes a throttle valve (15). The hydraulic pump (3) is connected to the oil cylinder (11) in sequence via the check valve (7), the throttle valve (15), and the solenoid directional valve (5).

5. The power switching system according to claim 2, characterized in that, The electro-hydraulic system also includes a hand-cranked pump (10), a manual directional valve (4), and a hydraulic check valve (17). The oil inlet of the hand pump (10) is connected to the oil tank (1). The hand-cranked pump (10) is connected to the oil cylinder (11) in sequence via the manual reversing valve (4), the hydraulic control check valve (17).

6. The power switching system according to claim 2, characterized in that, The electro-hydraulic system also includes an air filter (6). The oil tank (1) is connected to the atmosphere through the air filter (6) to control the air pressure inside the oil tank (1).

7. The power switching system according to claim 2, characterized in that, The electro-hydraulic system also includes a shock-resistant pressure gauge (9); The shock-resistant pressure gauge (9) is used to measure and display the pressure of the electro-hydraulic system.

8. The power switching system according to claim 2, characterized in that, The electro-hydraulic system also includes a hydraulic pressure relay (14). The hydraulic pressure relay (14) is used to trigger an electrical signal by monitoring the electro-hydraulic system.

9. The power switching system according to claim 8, characterized in that, The electro-hydraulic system also includes an accumulator (13) connected to the electro-hydraulic pressure relay (14). The accumulator (13) is used to store pressure energy and buffer pressure fluctuations in the electro-hydraulic system.

10. The power switching system according to any one of claims 2-9, characterized in that, The electro-hydraulic system also includes a level switch (16) installed inside the oil tank (1). The level switch (16) is used to monitor the oil level in the oil tank (1) and issue an alarm signal when the oil level reaches the warning value.

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