Power system and excavating apparatus

Abstract

The embodiment of the application provides a power system and excavating equipment, and relates to a power system of excavating equipment. The power system comprises: a driving motor, the driving motor having a first driving shaft and a second driving shaft; a main pump, the first driving shaft being connected with the main pump to drive the main pump to operate; a cooling fan, the cooling fan being used for cooling a component to be cooled of the excavating equipment, the second driving shaft being connected with the cooling fan to drive the cooling fan to rotate; a generator, the generator being used for supplying power to a low-voltage storage battery of the excavating equipment; and a first linkage assembly, the first linkage assembly being arranged between the second driving shaft and the generator, the first linkage assembly being used for driving the generator to operate when the second driving shaft rotates. The power system and the excavating equipment can reduce the structural complexity of the excavating equipment.

Description

Technical Field

[0001] This application relates to the field of excavator power system technology, and in particular to a power system and excavator equipment. Background Technology

[0002] Electric excavators are excavation machines powered by electricity. They have environmental advantages, as they emit no exhaust fumes and have relatively low noise levels, effectively reducing environmental pollution.

[0003] In related technologies, electric excavators include a drive motor and a main pump. The drive motor converts electrical energy into mechanical energy to drive the main pump. The main pump draws hydraulic oil from the oil tank and delivers it to the hydraulic actuators in a high-pressure form, thereby realizing functions such as digging, slewing, and traveling. In addition, electric excavators are also equipped with a generator and a cooling fan. The generator is used to power the low-voltage battery, while the cooling fan is used to dissipate heat from the key components of the electric excavator.

[0004] However, the generator and cooling fan require two separate drive components to control their operation. The drive components include a motor and a transmission mechanism. The motor can drive the generator and cooling fan through the transmission mechanism. Using two drive components increases the number of parts, thereby increasing the structural complexity of the electric excavator. Utility Model Content

[0005] This application provides a power system and excavation equipment to solve the technical problem that the generator and cooling fan in related technologies need to be controlled by two sets of drive components, which increases the structural complexity of the electric excavator.

[0006] In a first aspect, embodiments of this application provide a power system, including:

[0007] A drive motor having a first drive shaft and a second drive shaft;

[0008] The main pump is connected to the first drive shaft to drive the main pump to operate;

[0009] A cooling fan is used to dissipate heat from the components of the excavating equipment. The second drive shaft is connected to the cooling fan to drive the cooling fan to rotate.

[0010] A generator, which supplies power to the low-voltage battery of the excavating equipment;

[0011] A first linkage component is disposed between the second drive shaft and the generator. The first linkage component is used to drive the generator to operate when the second drive shaft rotates.

[0012] In some embodiments, the first linkage component includes:

[0013] A drive wheel, which is sleeved on and fixedly connected to the second drive shaft;

[0014] The first linkage wheel is sleeved and fixedly connected to the first shaft of the generator;

[0015] A first linkage component is disposed between the drive wheel and the first machine shaft. The first linkage component is used to drive the first linkage wheel to rotate when the drive wheel rotates.

[0016] In some embodiments, the device further includes a compressor and a second linkage component. The compressor is used to provide power to the air conditioning system of the excavating equipment. The second linkage component is disposed between the drive wheel and the compressor and is used to drive the compressor to operate when the drive wheel rotates.

[0017] In some embodiments, the second linkage component includes a second linkage wheel and a second linkage member. The second linkage wheel is sleeved and fixedly connected to the second shaft of the compressor. The second linkage member is disposed between the drive wheel and the second shaft. The second linkage member is used to drive the second linkage wheel to rotate when the drive wheel rotates.

[0018] In some embodiments, at least one of the first linkage and the second linkage is a belt.

[0019] In some embodiments, an adjustment component is also included, which is provided on both the generator and the compressor, and is used to adjust the tension of the corresponding belt.

[0020] In some embodiments, the adjustment assembly includes an adjustment bracket and a fixing member. Two adjustment brackets are provided, and the generator and the compressor are rotatably mounted on the two adjustment brackets respectively. The adjustment brackets are mounted on the mounting bracket of the drive motor, and the fixing member is used to fix the generator and the compressor to any position after rotation.

[0021] In some embodiments, the fastener includes bolts and nuts. The bolts are passed through the generator and the corresponding adjusting bracket, as well as the compressor and the corresponding adjusting bracket. The generator and the compressor are rotatably mounted on the two adjusting brackets respectively by the bolts. The nuts are used to fit and are threaded onto the corresponding bolts to fix the generator and the compressor.

[0022] In some embodiments, a protective net is also included, which is disposed over the drive wheel, the first linkage wheel and the second linkage wheel.

[0023] Secondly, embodiments of this application provide an excavation device, including a device body and a power system disposed on the device body.

[0024] This application provides a power system and excavating equipment. The power system provided in this application has a first drive shaft of a drive motor that drives a main pump when rotating. This allows the main pump to extract hydraulic oil from the oil tank and deliver it to the hydraulic actuators in a high-pressure manner, thereby achieving functions such as digging, rotation, and travel. The second drive shaft of the drive motor also drives a cooling fan when rotating. Simultaneously, the second drive shaft can drive a generator through a first linkage component, thus eliminating the need for two separate motors to drive the cooling fan and generator, reducing the use of additional motors and related transmission components. This reduces the complexity, failure rate, and maintenance costs of the excavating equipment. Due to the reduced number of mechanical parts, the overall layout of the equipment is more compact. By utilizing a single drive motor, energy efficiency can be improved, reducing energy loss when multiple motors are running, making the excavating equipment more energy-efficient and effective during operation. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0026] Figure 1 The structural schematic diagram of the power system provided in this application Figure 1 ;

[0027] Figure 2 The structural schematic diagram of the power system provided in this application Figure 2 ;

[0028] Figure 3 The structural schematic diagram of the power system provided in this application Figure 3 ;

[0029] Figure 4 for Figure 2 Partial structural diagram;

[0030] Figure 5 A schematic diagram of the generator and regulating components of the power system provided in this application;

[0031] Figure 6 A schematic diagram of the compressor and regulating components of the power system provided in this application.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100. Drive motor; 110. First drive shaft; 120. Second drive shaft;

[0034] 200. Main pump; 210. Bell jar;

[0035] 300. Cooling fan;

[0036] 400. Generator; 410. First machine shaft;

[0037] 500, First linkage component; 510, Drive wheel; 520, First linkage wheel; 530, First linkage element;

[0038] 600. Compressor; 610. Second shaft;

[0039] 700. Second linkage component; 710. Second linkage wheel; 720. Second linkage element;

[0040] 800. Adjustment component; 810. Adjustment bracket; 820. Fixture; 821. Bolt; 822. Nut;

[0041] 900. Protective netting.

[0042] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0043] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0044] In related technologies, electric excavators include a drive motor and a main pump. The drive motor, as the power source of the equipment, efficiently converts electrical energy into mechanical energy, which in turn drives the main pump. During operation, the main pump draws hydraulic oil from the tank and delivers it at high pressure to various hydraulic actuators, such as hydraulic cylinders and hydraulic motors. These hydraulic actuators, controlled by the pressure and flow of the hydraulic oil, achieve key functions such as digging, slewing, and traveling. In addition, electric excavators are equipped with a generator and a cooling fan. The generator continuously powers the low-voltage battery, ensuring the normal operation of the equipment's electronic control system, lighting, and other low-voltage equipment. The cooling fan is responsible for cooling critical components of the electric excavator, such as the drive motor, hydraulic system, and electronic control system, to prevent overheating and malfunctions during prolonged operation.

[0045] However, the operation of the generator and the cooling fan requires two separate drive components to control each. Each drive component includes a motor and a corresponding transmission component. The motor drives the generator or cooling fan through the transmission component to meet the power generation and heat dissipation requirements of the equipment. Using two separate drive components not only increases the number of parts, but also makes the structure of the entire electric excavator more complex. More parts mean higher failure risk and more complex maintenance requirements. It may also lead to an increase in the size and weight of the equipment, thereby affecting the mobility and transportation convenience of the equipment.

[0046] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0047] Combination Figures 1 to 4 This application provides a power system, including:

[0048] A drive motor 100 has a first drive shaft 110 and a second drive shaft 120.

[0049] The main pump 200 is connected to the first drive shaft 110 to drive the main pump 200 to operate;

[0050] Cooling fan 300 is used to cool the components of the excavating equipment. The second drive shaft 120 is connected to the cooling fan 300 to drive the cooling fan 300 to rotate.

[0051] Generator 400 is used to power the low-voltage battery of the excavating equipment;

[0052] The first linkage component 500 is disposed between the second drive shaft 120 and the generator 400. The first linkage component 500 is used to drive the generator 400 to operate when the second drive shaft 120 rotates.

[0053] In this application, the first drive shaft 110 of the drive motor 100 drives the main pump 200 to operate when it rotates, enabling the main pump 200 to draw hydraulic oil from the oil tank and deliver it to the hydraulic actuator in a high-pressure form, thereby realizing functions such as digging, rotation, and travel. The second drive shaft 120 of the drive motor 100 drives the cooling fan 300 to rotate when it rotates. At the same time, the second drive shaft 120 can drive the generator 400 to operate through the first linkage component 500, thus eliminating the need for two separate motors to drive the cooling fan 300 and the generator 400, reducing the use of additional motors and related transmission components, thereby reducing the complexity, failure rate, and maintenance cost of the excavating equipment. Due to the reduction in the number of mechanical parts, the overall layout of the equipment is more compact. By using the same drive motor 100, energy utilization efficiency can be improved, reducing the energy loss when multiple separate motors are running, making the excavating equipment more energy-efficient and efficient during operation.

[0054] In this embodiment, the power system also includes a vehicle platform. The drive motor 100 is connected to the mounting bracket, which is mounted on the vehicle platform via a shock absorber. The shock absorber can be a shock-absorbing rubber pad. By using a shock absorber, the vibration generated during the operation of the drive motor 100 can be effectively absorbed and isolated, reducing the impact of vibration on the overall vehicle structure and other components such as the main pump 200, cooling fan 300, and generator 400. This reduces noise levels, improves the smoothness and comfort of operation, and also helps to extend the service life of the drive motor 100, enhancing the overall reliability and durability of the electric excavator.

[0055] In this embodiment, the drive motor 100 is a dual-axis motor. The first drive shaft 110 and the second drive shaft 120 are the two shafts of the dual-axis motor, respectively. The first drive shaft 110 and the second drive shaft 120 are located on opposite sides of the drive motor 100, and the first drive shaft 110 and the second drive shaft 120 are located on the same straight line. In other embodiments, the relative position of the first drive shaft 110 and the second drive shaft 120 can be adaptively adjusted as needed.

[0056] In this embodiment, a frequency converter is installed on the dual-axis motor. The compact dual-output shaft design of the dual-axis motor enables multiple functions within a limited space, saving layout space. The first drive shaft 110 and the second drive shaft 120 can be controlled independently. The first drive shaft 110 provides power to the hydraulic system through the main pump 200, supporting functions such as digging, rotation, and walking. The second drive shaft 120 is connected to the cooling fan 300 and the generator 400, charging the low-voltage battery and cooling key components. The first drive shaft 110 and the second drive shaft 120 drive different loads or perform different tasks, providing high flexibility and versatility. Simultaneously, the first drive shaft 110 and the second drive shaft 120 can also work collaboratively to achieve synchronous or differential motion, fulfilling different drive requirements of the main pump 200, cooling fan 300, and generator 400. By controlling the input frequency of the dual-axis motor through the frequency converter, the rotational speeds of the first drive shaft 110 and the second drive shaft 120 of the dual-axis motor can be precisely adjusted. Gear adjustments can be made according to working conditions to adapt to different work requirements, achieving efficient and precise control.

[0057] In this embodiment, the dual-axis motor employs high-efficiency motor technology, such as a permanent magnet synchronous motor or a brushless DC motor. Permanent magnet synchronous motors or brushless DC motors are characterized by high efficiency, high power density, and low energy consumption, enabling them to output greater torque at the same power output, thereby improving digging efficiency and the equipment's power performance. Simultaneously, their high efficiency means less energy loss during operation, reducing energy consumption and extending the excavator's range.

[0058] In this embodiment, the first drive shaft 110 and the second drive shaft 120 are located on the same straight line, and the first drive shaft 110 and the second drive shaft 120 extend to opposite sides of the drive motor 100, respectively. The main pump 200 and the cooling fan 300 are respectively arranged on opposite sides of the drive motor 100. A bell housing 210 is provided between the main pump 200 and the drive motor 100. The bell housing 210 is mainly used to realize power transmission and protection functions. A transmission device (such as gears or belts) is usually installed inside the bell housing 210. The first drive shaft 110 and the gear are connected by a spline to efficiently transmit the mechanical energy of the drive motor 100 to the main pump 200, ensuring that the main pump 200 can operate stably and drive the hydraulic system. Its advantages include: compact structure, which can achieve efficient transmission in a limited space; protection of transmission components, preventing dust, impurities and external interference, and extending the service life of the transmission device; improved transmission efficiency, reducing energy loss through optimized internal design, and ensuring the stability and reliability of power transmission; and easy maintenance, as the design of the bell housing 210 makes the inspection and maintenance of transmission components more convenient and reduces maintenance costs.

[0059] In this embodiment, the cooling fan 300 is used to dissipate heat from the drive motor 100, hydraulic system, and electronic control system to prevent the equipment from malfunctioning due to overheating during long-term operation.

[0060] The first linkage component 500 includes:

[0061] Drive wheel 510, drive wheel 510 is sleeved and fixedly connected to the second drive shaft 120;

[0062] The first linkage wheel 520 is sleeved and fixedly connected to the first shaft 410 of the generator 400;

[0063] The first linkage 530 is disposed between the drive wheel 510 and the first shaft 410. The first linkage 530 is used to drive the first linkage wheel 520 to rotate when the drive wheel 510 rotates.

[0064] In this embodiment, the second drive shaft 120 is parallel to the first machine shaft 410; a first groove is provided on the drive wheel 510 along the circumference of the drive wheel 510, and a second groove is provided on the first linkage wheel 520 along the circumference of the first linkage wheel 520. The first linkage member 530 is wound around the first groove and the second groove. The first groove and the second groove can limit the first linkage member 530, thereby preventing the first linkage member 530 from disengaging from the drive wheel 510 and the first linkage wheel 520, and indirectly improving the stability of the first linkage member 530 driving the first linkage wheel 520 to rotate.

[0065] In this application, when the second drive shaft 120 of the drive motor 100 rotates, it can synchronously drive the drive wheel 510 to rotate. At this time, the drive wheel 510 can drive the first linkage wheel 520 to rotate through the first linkage member 530, thereby causing the first linkage wheel 520 to drive the first machine shaft 410 to rotate, and causing the first machine shaft 410 to drive the generator 400 to operate. By adopting the configuration of drive wheel 510, first linkage wheel 520 and first linkage member 530, the structure is simple and easy to maintain, further reducing the complexity, failure rate and maintenance cost of the excavation equipment.

[0066] The power system also includes a compressor 600 and a second linkage component 700. The compressor 600 is used to provide power to the air conditioning system of the excavating equipment. The second linkage component 700 is located between the drive wheel 510 and the compressor 600. The second linkage component 700 is used to drive the compressor 600 to operate when the drive wheel 510 rotates.

[0067] In this embodiment, the generator 400 and the compressor 600 are respectively located on opposite sides of the second drive shaft 120 of the drive motor 100 along its length.

[0068] In this application, by adopting the second linkage component 700, the second drive shaft 120 of the drive motor 100 can simultaneously drive the generator 400, the cooling fan 300, and the compressor 600 when rotating. This linkage method further reduces the use of additional motors and transmission components, simplifies the structure of the excavating equipment, and reduces the risk of failure and maintenance costs. In addition, due to the reduction in the number of mechanical parts and space occupation, the overall layout of the equipment is more compact, the weight is lighter, and the mobility and transportation convenience are correspondingly improved.

[0069] The second linkage assembly 700 includes a second linkage wheel 710 and a second linkage member 720. The second linkage wheel 710 is sleeved and fixedly connected to the second shaft 610 of the compressor 600. The second linkage member 720 is disposed between the drive wheel 510 and the second shaft 610. The second linkage member 720 is used to drive the second linkage wheel 710 to rotate when the drive wheel 510 rotates.

[0070] In this embodiment, the second shaft 610 is parallel to the first shaft 410; a third groove is provided on the drive wheel 510 along its circumference, and a fourth groove is provided on the second linkage wheel 710 along its circumference. The second linkage member 720 is wound around the third and fourth grooves. The third and fourth grooves can limit the second linkage member 720, thereby preventing the second linkage member 720 from disengaging from the drive wheel 510 and the second linkage wheel 710, and indirectly improving the stability of the second linkage member 720 driving the second linkage wheel 710 to rotate.

[0071] In this application, when the second drive shaft 120 of the drive motor 100 rotates, it can synchronously drive the drive wheel 510 to rotate. At this time, the drive wheel 510 can drive the second linkage wheel 710 to rotate through the second linkage 720, thereby causing the second linkage wheel 710 to drive the second shaft 610 to rotate, and causing the second shaft 610 to drive the compressor 600 to operate. By adopting the configuration of the drive wheel 510, the second linkage wheel 710 and the second linkage 720, the structure is simple and easy to maintain, further reducing the complexity, failure rate and maintenance cost of the excavation equipment.

[0072] At least one of the first linkage 530 and the second linkage 720 is a belt.

[0073] In this embodiment, both the first linkage member 530 and the second linkage member 720 are belts, which are wound around the drive wheel 510 and the first linkage wheel 520, as well as the drive wheel 510 and the second linkage wheel 710.

[0074] In this application, the belt structure is simple, easy to install and maintain, reducing the complexity and maintenance cost of the excavating equipment; the belt is elastic, which can absorb some vibration and impact, reduce noise and mechanical wear during transmission, and improve the smoothness and reliability of the excavating equipment; the belt drive can adjust the diameter of the first linkage pulley 520 and the second linkage pulley 710 as needed to achieve different transmission ratios, thereby optimizing the operating speed of the compressor 600 and the generator 400, ensuring that they operate under optimal working conditions, and improving energy utilization efficiency; this transmission method can effectively reduce the use of additional motors and transmission components, simplify the equipment structure, reduce the weight and volume of the equipment, make the equipment more compact, and facilitate transportation and operation.

[0075] In this embodiment, the diameter of the drive wheel 510 is larger than the diameter of the second linkage wheel 710, and the diameter of the second linkage wheel 710 is larger than the diameter of the first linkage wheel 520. In other embodiments, the belt can be replaced by a chain, and the diameters of the drive wheel 510, the first linkage wheel 520, and the second linkage wheel 710 can be adjusted as needed.

[0076] Combination Figures 4 to 6 The power system also includes an adjustment component 800. The adjustment component 800 is installed on both the generator 400 and the compressor 600. The adjustment component 800 is used to adjust the tension of the corresponding belt.

[0077] In this application, by adopting the setting of the adjustment component 800, the tension of the belt can be adjusted to ensure that the belt is always kept in the optimal working condition, effectively preventing the belt from slipping due to looseness, thereby improving transmission efficiency and reliability; appropriate tension can reduce belt wear, extend its service life, and reduce equipment maintenance costs; the flexibility of the adjustment mechanism allows the belt tension to be dynamically adjusted according to different working conditions and equipment loads, further optimizing the operating performance of the equipment.

[0078] The adjustment assembly 800 includes an adjustment bracket 810 and a fixing member 820. There are two adjustment brackets 810. The generator 400 and the compressor 600 are respectively rotatably mounted on the two adjustment brackets 810. The adjustment brackets 810 are mounted on the mounting bracket of the drive motor 100. The fixing member 820 is used to fix the generator 400 and the compressor 600 to any position after rotation.

[0079] In this application, by moving the generator 400 and compressor 600 on the mounting bracket, the generator 400 and compressor 600 can move closer to or further away from the second drive shaft 120. This allows the generator 400 and compressor 600 to drive the first linkage wheel 520 and the second linkage wheel 710 closer to or further away from the drive wheel 510, thereby causing the first linkage wheel 520 and the second linkage wheel 710 to drive the belt to move, thus achieving belt tension adjustment. The adjustment method is convenient and simple, and easy for maintenance personnel to operate. By using the fixing member 820, the fixing member 820 can fix the adjusting bracket 810 in any rotated position, thereby fixing the belt to the adjusted state.

[0080] The fastener 820 includes bolts 821 and nuts 822. Bolts 821 are installed on the generator 400 and its corresponding adjusting bracket 810, as well as on the compressor 600 and its corresponding adjusting bracket 810. The generator 400 and the compressor 600 are rotatably mounted on the two adjusting brackets 810 by means of bolts 821. Nuts 822 are used to fit and are threaded onto the corresponding bolts 821 to fix the generator 400 and the compressor 600.

[0081] In this embodiment, the use of bolts 821 and nuts 822 improves the fixing strength of the generator 400 and compressor 600 and facilitates the fixing of the generator 400 and compressor 600.

[0082] In this embodiment, the housings of the generator 400 and the compressor 600 are provided with multiple extensions extending toward the adjusting bracket 810. Bolts 821 are simultaneously passed through the extensions and the adjusting bracket 810. The generator 400 and the compressor 600 are rotatably connected to the two adjusting brackets 810 respectively through the extensions and the bolts 821. There are four sets of extensions, bolts 821 and nuts 822. In other embodiments, the number of bolts 821 and nuts 822 can be adjusted according to the configuration.

[0083] In other embodiments, a slide rail or slide groove may be provided on the mounting bracket, and a slider that is slidably connected to the slide rail and slide groove may be provided on the adjusting bracket 810, so that the adjusting bracket 810 can be slidably mounted on the mounting bracket by the slide rail and slider or the slide groove and slider.

[0084] The adjusting component 800 can also be replaced by a spring. By connecting one end of the spring to the mounting bracket and the other end to the adjusting bracket 810, the compressed spring can always automatically tension the belt without adjustment. Alternatively, the adjusting component 800 can be replaced by an adjusting electric cylinder. By setting the adjusting electric cylinder on the mounting bracket and setting the driving end of the adjusting electric cylinder on the adjusting bracket 810, the adjusting electric cylinder can drive the adjusting bracket 810 to move closer to or away from the mounting bracket, thereby achieving belt tension adjustment.

[0085] The power system also includes a protective net 900, which covers the drive wheel 510, the first linkage wheel 520 and the second linkage wheel 710.

[0086] In this embodiment, the protective net 900 is detachably connected to two adjusting brackets 810 by screws, thereby facilitating the assembly and disassembly of the protective net 900.

[0087] In this application, by adopting the protective net 900, the protective net 900 can protect the drive wheel 510, the first linkage wheel 520, the second linkage wheel 710 and the belt, preventing other impurities from falling onto the drive wheel 510, the first linkage wheel 520, the second linkage wheel 710 and the belt, thereby preventing impurities from affecting the transmission of the first linkage component 500 and the second linkage component 700, and indirectly extending the service life of the first linkage component 500 and the second linkage component 700.

[0088] This application also provides an excavation device, including a device body and a power system of any of the above embodiments disposed on the device body.

[0089] The specific structure of the power system has been described in detail in the above embodiments and will not be repeated here.

[0090] The excavating equipment provided in this application embodiment, through the configuration of a power system, enables the first drive shaft 110 of the drive motor 100 to drive the main pump 200 when it rotates. This allows the main pump 200 to extract hydraulic oil from the oil tank and deliver it to the hydraulic actuators in a high-pressure manner, thereby realizing functions such as digging, rotation, and travel. The second drive shaft 120 of the drive motor 100, when it rotates, drives the cooling fan 300 to rotate, enabling the cooling fan 300 to dissipate heat from the key components of the excavating equipment. Simultaneously, the second drive shaft 120 drives the drive wheel 510 to rotate, causing one of its belts to drive the first linkage wheel 520 to rotate. This first linkage wheel 520 then drives the generator 400 to operate, allowing the generator 400 to supply power to the low-voltage battery of the excavating equipment. The drive wheel 510 can drive another belt drive, which in turn drives the second linkage wheel 710 to rotate. This causes the second linkage wheel 710 to drive the compressor 600. The compressor 600 can provide power to the excavator's air conditioning system, providing hot or cold air to the cab. This eliminates the need for three separate motors to drive the cooling fan 300, generator 400, and compressor 600, reducing the use of additional motors and related transmission components. This reduces the complexity, failure rate, and maintenance costs of the excavator. Due to the reduced number of mechanical parts, the overall layout of the equipment is more compact. By utilizing the same drive motor 100, energy efficiency can be improved, reducing energy loss when multiple motors are running, making the excavator more energy-efficient during operation.

[0091] Finally, it should be noted that other embodiments of this utility model will readily occur to those skilled in the art upon consideration of the specification and practice of the utility model disclosed herein. This utility model is intended to cover any variations, uses, or adaptations of this utility model that follow the general principles of this utility model and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this utility model is limited only by the appended claims.

Claims

1. A power system, characterized in that, include: A drive motor having a first drive shaft and a second drive shaft; The main pump is connected to the first drive shaft to drive the main pump to operate; A cooling fan is used to dissipate heat from the components of the excavating equipment. The second drive shaft is connected to the cooling fan to drive the cooling fan to rotate. A generator, which supplies power to the low-voltage battery of the excavating equipment; A first linkage component is disposed between the second drive shaft and the generator. The first linkage component is used to drive the generator to operate when the second drive shaft rotates.

2. The power system according to claim 1, characterized in that, The first linkage component includes: A drive wheel, which is sleeved on and fixedly connected to the second drive shaft; The first linkage wheel is sleeved and fixedly connected to the first shaft of the generator; A first linkage component is disposed between the drive wheel and the first machine shaft. The first linkage component is used to drive the first linkage wheel to rotate when the drive wheel rotates.

3. The power system according to claim 2, characterized in that, It also includes a compressor and a second linkage component. The compressor is used to provide power to the air conditioning system of the excavating equipment. The second linkage component is disposed between the drive wheel and the compressor. The second linkage component is used to drive the compressor to operate when the drive wheel rotates.

4. The power system according to claim 3, characterized in that, The second linkage component includes a second linkage wheel and a second linkage member. The second linkage wheel is sleeved and fixedly connected to the second shaft of the compressor. The second linkage member is disposed between the drive wheel and the second shaft. The second linkage member is used to drive the second linkage wheel to rotate when the drive wheel rotates.

5. The power system according to claim 4, characterized in that, At least one of the first linkage component and the second linkage component is a belt.

6. The power system according to claim 5, characterized in that, It also includes an adjustment component, which is provided on both the generator and the compressor, and is used to adjust the tension of the corresponding belt.

7. The power system according to claim 6, characterized in that, The adjustment assembly includes an adjustment bracket and a fixing member. There are two adjustment brackets. The generator and the compressor are rotatably mounted on the two adjustment brackets respectively. The adjustment brackets are mounted on the mounting bracket of the drive motor. The fixing member is used to fix the generator and the compressor to any position after rotation.

8. The power system according to claim 7, characterized in that, The fasteners include bolts and nuts. The bolts are inserted into the generator and the corresponding adjusting bracket, as well as the compressor and the corresponding adjusting bracket. The generator and the compressor are rotatably mounted on the two adjusting brackets respectively by the bolts. The nuts are used to fit and are threaded onto the corresponding bolts to fix the generator and the compressor.

9. The power system according to any one of claims 4-8, characterized in that, It also includes a protective net, which is installed over the drive wheel, the first linkage wheel and the second linkage wheel.

10. An excavating device, characterized in that, It includes the equipment body and the power system as described in any one of claims 1-9, which is disposed on the equipment body.

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