Electrically powered explosion-proof loader platform and loader therefor

Abstract

The application belongs to the technical field of loaders, and particularly discloses an electric explosion-proof loader platform and a loader thereof, which comprises a rear frame, a support frame connected to the upper sides of left and right side plates of the rear frame, and an auxiliary frame installed between the left and right side plates; the support frame is arranged in an upward arch shape, and the auxiliary frame is arranged lower than the left and right side plates; a battery is installed on the support frame, a working motor is installed on the upper side of the auxiliary frame, and a drive axle assembly is installed on the lower side of the auxiliary frame; an explosion-proof mounting space is formed between the left and right side plates, a front beam, a rear beam and the support frame; an explosion-proof plate is fixedly connected to the outside of the battery, effectively protecting the battery and serving as a counterweight to enhance the stability of the whole machine; electrical components are installed in the explosion-proof mounting space, which can provide effective protection for the electrical components; the shaft center of a wheel is arranged lower than the rear frame, the auxiliary frame and the electrical components, the battery is elevated by the support frame, the electrical components of the whole machine are elevated, the protection is improved, water ingress is prevented, and manual maintenance at the bottom side of the rear frame is facilitated.

Description

Technical Field

[0001] This invention belongs to the field of loader technology, and specifically relates to an electric explosion-proof loader platform and the loader thereof. Background Technology

[0002] Due to the special nature of underground operations, the application of electric technology first requires explosion-proof certification. This means that the original vehicle frame cannot meet the relevant fixing and protection requirements based on the existing electrical components. Additional explosion-proof components need to be added to the underground electric components, which increases the overall size and makes the conventional layout unable to meet the needs of the whole machine.

[0003] In the prior art, there is a coal mine explosion-proof pure electric loader frame and loader. The main frame is equipped with a travel motor bracket for mounting an explosion-proof travel motor and a pump motor bracket for mounting an explosion-proof pump motor. At the rear of the main frame is a battery box for housing an explosion-proof power battery, which powers the explosion-proof motor. A crash beam is detachably mounted at the rear of the battery box, and a guardrail is installed on the crash beam. The crash beam deforms and absorbs energy upon impact from the rear, preventing or reducing the impact on the rear bumper and thus protecting the internal explosion-proof power battery from damage. The guardrail is bolted to the outside of the crash beam, further enhancing the protective effect. However, the battery occupies a large amount of internal space on the main frame, leaving insufficient space for other components. Electrical components are prone to lack of protection, leading to malfunctions and making maintenance difficult. Summary of the Invention

[0004] To address the problems of existing underground electric loaders requiring additional explosion-proof components, resulting in increased overall size, lack of protection for electrical components, susceptibility to malfunctions, and difficulty in maintenance, this invention proposes an electric explosion-proof loader platform and its loader. The invention provides the following technical solution:

[0005] An electric explosion-proof loader platform includes a rear frame. A battery, a working motor, a travel motor, a reducer, a drive axle assembly, electrical components, a controller, and wheels are mounted on the rear frame. The rear frame includes a left side plate, a right side plate, a front beam, and a rear beam connected in a frame shape. A support frame is connected to the upper part of the left and right side plates. A subframe is installed between the left and right side plates. The support frame is arched upwards, and the subframe is positioned lower than the left and right side plates. The battery is mounted on the support frame, the working motor is mounted on the upper side of the subframe, and the drive axle assembly is mounted on the lower side of the subframe. An explosion-proof mounting space is formed between the left side plate, right side plate, front beam, rear beam, and support frame. An explosion-proof plate is fixedly connected to the battery. The electrical components are installed in the explosion-proof mounting space, and the wheel axles are positioned lower than the rear frame, subframe, and electrical components.

[0006] Preferably, the support frame includes a first support plate, a second support plate, and a third support plate, which are arranged at intervals from back to front. The first and second support plates are connected to the rear of the left and right side plates, and the second support plate is located in the middle of the left and right side plates. A support connecting plate is fixedly connected between the second and third support plates.

[0007] Preferably, the battery includes a first battery and a second battery. The first battery is horizontally mounted on the first support plate and the second support plate, and the second battery is horizontally mounted on the second support plate, the third support plate and the supporting connecting plate.

[0008] Preferably, the electrical components include an explosion-proof PDU for connecting the battery, an explosion-proof connection box for charging, and an explosion-proof MCU for controlling the working motor and the walking motor. The explosion-proof PDU and the explosion-proof connection box are arranged in an inverted manner, and the inspection ports of the explosion-proof PDU and the explosion-proof connection box are both facing downwards or horizontally toward the explosion-proof installation space.

[0009] Preferably, the second battery is positioned on the left side of the rear frame, the access port of the second battery is located on the right side, and an explosion-proof controller for connecting and controlling various electrical components is installed and fixed on the right side of the second battery.

[0010] Preferably, the rear of the left and right side plates are arched outwards horizontally, and the front of the left and right side plates are bent downwards to form a recessed part of the rear frame, in which the travel motor and reducer are installed.

[0011] An electric explosion-proof loader includes a cab, a working device, a front frame, and the aforementioned electric explosion-proof loader platform. The cab is installed on the upper side of the lower part of the rear frame, and the front frame is installed on the front side of the lower part of the rear frame.

[0012] Preferably, a hydraulic oil tank is installed on the left or right side of the lower part of the rear frame, and a foot pedal is fixedly connected to the outside of the hydraulic oil tank.

[0013] Preferably, a central brake for braking control is installed on the front frame.

[0014] Preferably, a crash beam is installed on the rear beam, and the top of the crash beam is not lower than the top of the first battery.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The battery is externally fixed with an explosion-proof plate, and its overall weight is 2-3 times that of a regular battery. This not only effectively protects the battery but also acts as a counterweight to enhance the stability of the entire device.

[0017] 2. The electrical components are installed in an explosion-proof installation space, which can provide effective protection for the electrical components. The wheel axle is lower than the rear frame, subframe and electrical components. The battery is supported by a support frame, which can raise the electrical components of the whole machine, improve protection, prevent water ingress, and facilitate manual maintenance at the bottom of the rear frame.

[0018] 3. The first, second, and third support plates are arranged alternately from back to front. A support connecting plate is fixedly connected between the second and third support plates to form a box-type structure, which can improve the stability of the rear frame structure. The first, second, and third support plates are arched and their upper surfaces are flush, which can stably support the first and second batteries on the rear frame. 4. The inspection ports of each component are set outward for easy maintenance. Attached Figure Description

[0019] Figure 1 This is a top view of the structure of the present invention after being rotated 90 degrees counterclockwise;

[0020] Figure 2 This is a schematic diagram of the right-side structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the left-side structure of the present invention;

[0022] Figure 4 This is a partial structural diagram of the right rear side of the present invention;

[0023] Figure 5 This is a schematic diagram of the rear view structure of the present invention;

[0024] Figure 6 This is a partial three-dimensional structural schematic diagram of the present invention;

[0025] Figure 7 This is a three-dimensional structural diagram of the rear frame of the present invention;

[0026] Figure 8 This is a schematic diagram of the battery arrangement structure of the present invention;

[0027] In the attached diagram: 1. Rear frame; 101. Left side panel; 102. Right side panel; 103. Front beam; 104. Rear beam; 105. Support connecting plate; 106. Subframe; 2. Battery; 201. First battery; 202. Second battery; 3. Explosion-proof PDU; 4. Anti-collision beam; 5. Explosion-proof connection box; 6. Explosion-proof MCU; 7. Explosion-proof controller; 8. Working motor; 9. Travel motor; 10. Explosion-proof radiator; 11. Cab; 12. Central brake; 13. Front frame; 14. Main pump; 15. Hydraulic oil tank; 16. Second battery access port; 17. Explosion-proof controller access port; 18. First battery access port; 19. Explosion-proof PDU access port; 20. Explosion-proof MCU access port; 21. Explosion-proof connection box access port; 22. Working motor access port; 23. Explosion-proof motor access port. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for illustration and not for limiting the invention.

[0029] like Figure 1-8 As shown, an electric explosion-proof loader platform includes a rear frame 1. The rear frame 1 is equipped with a battery 2, a working motor 8, a travel motor 9, a reducer, a drive axle assembly, electrical components, a controller, and wheels. The rear frame 1 includes a left side plate 101, a right side plate 102, a front beam 103, and a rear beam 104 connected in a frame shape. A support frame is connected to the upper sides of the left side plate 101 and the right side plate 102. A subframe 106 is installed between the left side plate 101 and the right side plate 102. The support frame is arched upwards, and the subframe 106 is positioned lower than the left side plate 101 and the right side plate 102. The battery 2 is mounted on the support frame, and the working motor 8 is mounted on the upper side of the subframe 106. The moving axle assembly is installed on the underside of the subframe 106; an explosion-proof installation space is formed between the left side plate 101, right side plate 102, front beam 103, rear beam 104 and support frame; the battery 2 is externally fixed with an explosion-proof plate, and its overall weight is 2-3 times that of a normal battery 2. This not only effectively protects the battery 2, but also acts as a counterweight to enhance the stability of the whole machine; the electrical components are installed in the explosion-proof installation space, which can provide effective protection for the electrical components. The wheel axle is lower than the rear frame 1, subframe 106 and electrical components. The battery 2 is raised by the support frame, which can raise the electrical components of the whole machine, improve protection, prevent water ingress, and facilitate manual maintenance on the underside of the rear frame 1.

[0030] Specifically, the support frame includes a first support plate, a second support plate, and a third support plate. The first support plate, the second support plate, and the third support plate are arranged alternately from back to front. The first support plate and the second support plate are connected to the rear of the left side plate 101 and the right side plate 102. The second support plate is located in the middle of the left side plate 101 and the right side plate 102. A support connecting plate 105 is fixedly connected between the second support plate and the third support plate, which can form a box-type structure, thereby improving the stability of the rear frame 1 structure. The first support plate, the second support plate, and the third support plate are arched and their upper surfaces are flush, which allows the first battery 201 and the second battery 202 to be stably mounted above the rear frame 1. Specifically, the second battery 202 is positioned slightly to the left on the rear frame 1, with its access port 16 located on the right side. An explosion-proof controller 7, used to connect and control various electrical components, is mounted and fixed on the right side of the second battery 202. The access port 17 of the explosion-proof controller faces directly to the right. This increases the weight on the right side of the rear frame 1, making the weight distribution more even, while also providing ample space for operation and maintenance. The rear side of the rear frame 1 is elevated to form an explosion-proof motor access port 23, facilitating operation and maintenance. The main pump 14 is also installed within the explosion-proof mounting space. The main pump 14 is connected to the working motor 8 to realize the functions of the entire machine.

[0031] Specifically, battery 2 includes a first battery 201 and a second battery 202. The first battery 201 is horizontally mounted on the first and second support plates, and the second battery 202 is horizontally mounted on the second and third support plates and the support connecting plate 105, which increases the weight of the rear of the machine. The first battery 201 makes the weight of the machine more evenly distributed in the left and right direction at the rear, and the second battery 202 makes the weight of the machine more evenly distributed in the front and rear direction of the rear frame 1. Therefore, it can effectively improve the stability of the vehicle during travel and prevent rollover.

[0032] Specifically, the electrical components include an explosion-proof PDU3 for connecting the battery 2, an explosion-proof connection box 5 for charging and battery 2 signal output, and an explosion-proof MCU6 for controlling the working motor 8 and the travel motor 9. The explosion-proof PDU3 and the explosion-proof connection box 5 are arranged upside down, with the explosion-proof MCU6 positioned on the right side plate 102, the explosion-proof PDU3 on the left side plate 101, and the explosion-proof connection box 5 on the right side plate 102. The inspection ports 20 of the explosion-proof MCU, 19 of the explosion-proof PDU, and 21 of the explosion-proof connection box are all facing downwards, facilitating maintenance of the explosion-proof MCU6, the explosion-proof PDU3, and the explosion-proof connection box 5. The inspection port 22 of the working motor faces forward. The explosion-proof MCU6, the explosion-proof PDU3, and the explosion-proof connection box 5 are located on the rear side of the working motor 8, which is fixed to the rear side of the subframe 106, leaving maintenance space on the front side for easy maintenance.

[0033] Specifically, the rear of the left side plate 101 and the right side plate 102 are arched outward horizontally, and the front of the left side plate 101 and the right side plate 102 are bent downward to form the lower part of the rear frame 1. The travel motor 9 and the reducer are installed in the lower part of the rear frame 1. The travel motor 9 is driven and connected to the reducer. The specific connection method is a mature existing technology, so it will not be described in detail.

[0034] An electric explosion-proof loader includes a cab 11, a working device, a front frame 13, and the aforementioned electric explosion-proof loader platform. The cab 11 is installed on the upper side of the lower part of the rear frame 1, and the front frame 13 is installed on the front side of the lower part of the rear frame 1. The working device is specifically a boom assembly. The weight of the working device can be balanced by a first battery 201 and a second battery 202. The cab 11 is located in the middle of the machine, which can provide a stable foundation for the working device and improve the stability of the machine during operation.

[0035] Specifically, a hydraulic oil tank 15 is installed on the left or right side of the lower part of the rear frame 1, and a foot pedal is fixedly connected to the outside of the hydraulic oil tank 15; a central brake 12 for braking control is installed on the front frame 13.

[0036] Specifically, the access port 18 of the first battery is located on the rear side, and a crash beam 4 is installed on the rear beam 104. The top of the crash beam 4 is not lower than the top of the first battery 201, thereby providing protection for the first battery 201 and the access port 18 of the first battery, improving the crash resistance and extending the service life.

[0037] Specifically, an explosion-proof radiator 10 is installed on the right side of the cab 11. While dissipating heat, it also increases the weight on the right side of the rear frame 1, making the overall weight distribution more even.

[0038] In addition, both the working motor 8 and the travel motor 9 are explosion-proof motors to improve the explosion-proof effect; the front frame 13, hydraulic oil tank 15, foot pedal, and anti-collision beam 4 can all be integrated into the electric explosion-proof loader platform.

Claims

1. An electric explosion-proof loader platform, comprising a rear frame (1), a battery (2), a working motor (8), a travel motor (9), a reducer, a drive axle assembly, electrical components, a controller, and wheels mounted on the rear frame (1), characterized in that, The rear frame (1) includes a left side plate (101), a right side plate (102), a front beam (103), and a rear beam (104) connected in a frame shape. A support frame is connected to the upper side of the left side plate (101) and the right side plate (102). A subframe (106) is installed between the left side plate (101) and the right side plate (102). The support frame is arched upward and its upper end is flush with the support frame. The battery (2) is stably mounted on the upper end of the support frame. The subframe (104) is mounted on the upper end of the support frame. 6) The battery (2) is mounted on a support frame and is positioned below the left side plate (101) and right side plate (102). The working motor (8) is mounted on the upper side of the subframe (106), and the drive axle assembly is mounted on the lower side of the subframe (106). The left side plate (101), right side plate (102), front beam (103), rear beam (104), and the upwardly arched support frame together form an explosion-proof enclosure that houses the battery (2) at the top and is open at the bottom. The battery (2) is fixedly connected to an explosion-proof plate, which also serves as a counterweight for the entire machine. The electrical components include an explosion-proof PDU (3) for connecting the battery (2), an explosion-proof connection box (5) for charging, and an explosion-proof MCU (6) for controlling the working motor (8) and the walking motor (9). The explosion-proof PDU (3) and the explosion-proof connection box (5) are inverted, and the inspection port (19) of the explosion-proof PDU and the inspection port (21) of the explosion-proof connection box are both facing downwards or horizontally towards the explosion-proof installation space that is open at the bottom. The inspection port of the working motor (8) is facing forward. The explosion-proof MCU (6), the explosion-proof PDU (3), and the explosion-proof connection box (5) are located on the rear side of the working motor (8). The working motor (8) is fixed on the rear side of the subframe (106), and a maintenance space is reserved on the front side. The axle of the wheel is lower than the rear frame (1), the subframe (106), and the electrical components.

2. The electric explosion-proof loader platform according to claim 1, characterized in that, The support frame includes a first support plate, a second support plate, and a third support plate. The first support plate, the second support plate, and the third support plate are arranged alternately from back to front. The first support plate and the second support plate are connected to the rear of the left side plate (101) and the right side plate (102). The third support plate is located in the middle of the left side plate (101) and the right side plate (102). A support connecting plate (105) is fixedly connected between the second support plate and the third support plate.

3. The electric explosion-proof loader platform according to claim 2, characterized in that, The battery (2) includes a first battery (201) and a second battery (202). The first battery (201) is horizontally mounted on the first support plate and the second support plate, and the second battery (202) is horizontally mounted on the second support plate, the third support plate and the supporting connecting plate (105).

4. The electric explosion-proof loader platform according to claim 1, characterized in that, The second battery (202) is located on the left side of the rear frame (1). The access port of the second battery (202) is located on the right side. An explosion-proof controller for connecting and controlling various electrical components is installed and fixed on the right side of the second battery (202).

5. The electric explosion-proof loader platform according to any one of claims 1-4, characterized in that, The rear of the left side plate (101) and the right side plate (102) are arched outward horizontally, and the front of the left side plate (101) and the right side plate (102) are bent downward to form the lower part of the rear frame (1). The travel motor (9) and the reducer are installed in the lower part of the rear frame (1).

6. An electric explosion-proof loader, characterized in that, It includes a cab (11), a working device, a front frame (13) and an electric explosion-proof loader platform as described in claim 5, wherein the cab (11) is installed on the upper side of the sunken part of the rear frame (1) and the front frame (13) is installed on the front side of the sunken part of the rear frame (1).

7. The electric explosion-proof loader according to claim 6, characterized in that, A hydraulic oil tank (15) is installed on the left or right side of the lower part of the rear frame (1), and a foot pedal is fixedly connected to the outside of the hydraulic oil tank (15).

8. The electric explosion-proof loader according to claim 6, characterized in that, A center clamp brake (12) for braking control is installed on the front frame (13).

9. The electric explosion-proof loader according to claim 6, characterized in that, A crash beam (4) is installed on the rear beam (104), and the top of the crash beam (4) is not lower than the top of the first battery (201).

Images