Quick battery replacing device for underground pure electric carry-scraper

Abstract

The invention relates to a quick battery replacing device for an underground pure electric carry-scraper. The quick battery replacing device comprises a battery mounting frame internally provided with a battery unit, a guide mechanism arranged on a carry-scraper frame, a frame positioning assembly and a discharging connector, a quick connector A is arranged at the bottom of the battery unit; a positioning sleeve and a locking fixing plate are arranged at the bottom of the battery mounting rack; the guide mechanism is provided with a plurality of guide plates for guiding the front, back, left and right directions of the battery mounting rack; the frame positioning assembly comprises a positioning column and a locking oil cylinder which are mounted on the frame; and the discharge connector is provided with a quick-plug connector B, the quick-plug connector B and the quick-plug connector A are in a male-female matching connection structure, and the battery unit is electrically connected with a carry-scraper operation system. According to the rapid battery replacing device, rapid battery replacing of the underground pure electric carry-scraper is achieved, and therefore the cruising ability, the working efficiency and the safety of the pure electric carry-scraper are improved.

Description

Technical Field

[0001] The invention relates to a quick power replacement device for an underground pure electric scraper, belonging to the technical field of underground scrapers. Background Art

[0002] Underground loader is a common equipment for loading, transporting and unloading slag in underground mines. Underground pure electric loader is an underground loader powered by mining lithium-ion batteries or other forms of battery power, and is widely used in mining operations.

[0003] Because underground loaders must work in cycles underground for a long time, with a single working time of 6h-8h / shift, and 2-3 shifts per day, the equipment's endurance is required to be high. At present, the underground pure electric loaders in the industry install and fix lithium batteries on the rear frame of the whole machine. The battery power can only meet the use requirements of one shift at most. After the battery is exhausted, it must be charged on the vehicle in time. The charging time is about 2h, and the endurance is short. It cannot meet the continuous cycle operation requirements underground, which seriously affects the efficiency of underground operations. At the same time, because the space underground is closed, the ventilation is poor, and the safety standards are high, there are safety hazards in on-board charging, especially fast charging; and because the height of the underground tunnel is low, in order to meet the field of vision requirements, the height of the cab is reduced accordingly. If the battery replacement device of the heavy truck on the road is directly borrowed, the tail height will be too high, which will seriously affect the field of vision and the passability of the whole machine.

[0004] Therefore, there is an urgent need for a fast battery replacement device that can improve the endurance, work efficiency and safety of underground pure electric scrapers. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned shortcomings and provide a fast battery replacement device for an underground pure electric scraper to achieve fast battery replacement of the underground pure electric scraper, thereby improving the endurance, work efficiency and safety of the pure electric scraper.

[0006] The object of the present invention is achieved in that: A quick battery replacement device for an underground pure electric scraper is installed on the rear frame of the scraper, comprising a battery mounting frame with a battery unit installed inside, a guide mechanism arranged on the frame for vertically guiding the battery mounting frame, a frame positioning assembly for positioning and locking the battery mounting frame, and a discharge connector for electrically connecting to the battery mounting frame; A quick-connect connector A is provided at the bottom of the battery unit; The bottom of the battery mounting frame is provided with a positioning sleeve and a locking fixing plate for positioning and locking with the frame positioning assembly; The guide mechanism is provided with a plurality of guide plates to guide the battery mounting frame in the front, rear, left, and right directions, and guide the battery mounting frame to enter the frame mounting position; The frame positioning assembly comprises a positioning column and a locking oil cylinder installed on the frame; the positioning column and the positioning sleeve are nested and matched to realize the positioning of the battery mounting frame; the locking oil cylinder is provided with a mushroom head cylinder rod, which cooperates with the waist hole provided on the locking fixing plate to realize the locking or releasing of the battery mounting frame; The discharge connector is provided with a quick-connect connector B, which is a male-female matching connection structure with the quick-connect connector A, and electrically connects the battery unit to the scraper operating system.

[0007] Furthermore, a battery unit is arranged in the battery mounting frame, and the battery unit is connected to a charging port for connecting a charging gun to charge the battery unit and a quick-plug connector A for discharging the battery unit to the outside.

[0008] Furthermore, the battery unit is a lithium battery pack or a storage battery group.

[0009] Furthermore, the battery mounting frame includes a frame, a sealing plate and a lifting ring.

[0010] Furthermore, the guide mechanism includes a front guide plate, a left front guide plate, a right front guide plate, a rear guide plate, a left rear guide plate, and a right rear guide plate arranged on the frame; each guide plate guides the battery mounting frame in multiple directions such as front left, front right, rear, left rear, and right rear, guiding the battery mounting frame into the frame installation position.

[0011] Furthermore, the bottom edge of the battery mounting rack is provided with a roller or a slider in contact with the front guide plate, the left front guide plate, the right front guide plate, the rear guide plate, the left rear guide plate, and the right rear guide plate.

[0012] Furthermore, the frame is provided with a plurality of frame positioning components, each of which corresponds to a group of positioning sleeves and locking fixing plates at the bottom of the battery mounting frame; the number and position of the frame positioning components correspond to the number and position of the positioning sleeves and locking fixing plates.

[0013] Furthermore, the positioning column is a tapered column structure that is thin at the top and thick at the bottom, which facilitates the insertion and positioning of the positioning sleeve.

[0014] Furthermore, the discharge connector includes a bottom fixing plate fixedly mounted on the vehicle frame, and an upper mounting plate elastically connected to the bottom fixing plate via a plurality of elastic components; a quick-connect connector B corresponding to the quick-connect connector A is mounted on the upper mounting plate.

[0015] Furthermore, the elastic component includes a spring arranged between the upper mounting plate and the bottom fixing plate, and a long bolt and a closed nut embedded in the inner hole of the spring and connecting the upper mounting plate and the bottom fixing plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention installs the battery unit in a battery mounting frame, and provides a guiding mechanism, a frame positioning assembly and a discharge connector between the battery mounting frame and the rear frame of the scraper loader. The guiding mechanism is used to vertically guide the battery mounting frame, thereby facilitating the entry and exit guidance of the battery mounting frame. The battery mounting frame is accurately positioned and locked or released through the positioning and locking of the frame positioning assembly. The battery unit in the battery mounting frame is quickly connected to the scraper loader operating system through the discharge connector, thereby realizing rapid battery replacement of the pure electric scraper loader, which is safe and reliable. No on-board charging is required, which avoids safety hazards and allows the saved charging time to be used for the circulation operation of the underground scraper loader, thereby solving the problem of short battery life and greatly improving production efficiency. The rapid battery replacement device of the present invention has a compact overall structure and a low installation height, which does not affect the normal operating field of the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a schematic diagram of the assembly structure of a quick power replacement device for an underground pure electric scraper according to the present invention.

[0018] Figure 2 This is a schematic diagram of the battery unit structure of a fast battery replacement device for an underground pure electric scraper of the present invention.

[0019] Figure 3 This is a schematic diagram of the bottom structure of a battery mounting frame of a quick battery replacement device for an underground pure electric scraper according to the present invention.

[0020] Figure 4 This is a schematic diagram of the top structure of a battery mounting frame of a quick battery replacement device for an underground pure electric scraper according to the present invention.

[0021] Figure 5 The present invention is a schematic diagram of the structure of a guide mechanism and a frame positioning assembly of a quick power-changing device for an underground pure electric scraper.

[0022] Figure 6 The present invention is a schematic diagram of the structure of a guide mechanism and a frame positioning assembly of a quick power-changing device for an underground pure electric scraper.

[0023] Figure 7 The present invention is a schematic diagram of the structure of a discharge connector of a quick power replacement device for an underground pure electric scraper.

[0024] Figure 8 The present invention is a schematic diagram of the locking cylinder structure of a quick power-changing device for an underground pure electric scraper.

[0025] in: Frame 1, battery mounting frame 2, frame positioning assembly 3, discharge connector 4, buffer pad 5, locking cylinder 6, battery unit 7, quick-connect connector A8, charging gun 9, frame 10, positioning sleeve 11, locking fixing plate 12, sealing plate 13, lifting ring 14, positioning column 15, rear guide plate 16, left rear guide plate 17, right rear guide plate 18, front guide plate 19, left front guide plate 20, right front guide plate 21, quick-connect connector B22, upper mounting plate 23, bottom fixing plate 24, elastic assembly 25, spring 26. DETAILED DESCRIPTION

[0026] See also Figure 1 to Figure 8 The present invention relates to a quick battery replacement device for an underground pure electric scraper, which is installed on a rear frame 1 of the scraper, and comprises a battery mounting frame 2 with a battery unit 7 installed therein, a guide mechanism arranged on the frame 1 for vertically guiding the battery mounting frame 2, a frame positioning assembly 3 for positioning and locking the battery mounting frame 2, and a discharge connector 4 for electrically connecting to the battery mounting frame 2; the battery unit 7 is a rechargeable and dischargeable battery pack such as a lithium battery pack or a storage battery pack; The battery mounting frame 2 comprises a frame 10, a sealing plate 13 and a lifting ring 14. A battery unit 7 is arranged in the battery mounting frame 2. In this embodiment, two battery mounting frames 2 and two battery units 7 are arranged. Each battery unit 7 is connected to a charging port for connecting a charging gun 9 to charge the battery unit 7 and a quick-connect connector A8 for discharging the battery unit 7 to the outside. A positioning sleeve 11 and a locking fixing plate 12 are arranged on the bottom frame 10 of the battery mounting frame 2 for positioning and locking with the frame positioning assembly 3. The guide mechanism is provided with a plurality of guide plates, including a front guide plate 19, a left front guide plate 20, a right front guide plate 21, a rear guide plate 16, a left rear guide plate 17, and a right rear guide plate 18 provided on the frame 1; each guide plate guides the battery mounting frame 2 in multiple directions, including the front left, the front right, the rear, the left rear, and the right rear, so as to guide the battery mounting frame 2 to enter the installation position of the frame 1; in order to reduce the friction between each guide plate and the battery mounting frame 2 and protect the battery mounting frame 2 and each guide plate, a roller or a slider is provided at the bottom edge of the battery mounting frame 2, which contacts with the front guide plate 19, the left front guide plate 20, the right front guide plate 21, the rear guide plate 16, the left rear guide plate 17, and the right rear guide plate 18 during guidance; The frame 1 is provided with a plurality of frame positioning components 3, each frame positioning component 3 corresponds to the position of a group of positioning sleeves 11 and locking fixing plates 12 at the bottom of the battery mounting frame 2; the number and position of the frame positioning components 3 correspond to the number and position of the positioning sleeves 11 and the locking fixing plates 12. The frame positioning assembly 3 includes a positioning column 15 and a locking cylinder 6 installed on the frame 1; the positioning column 15 is a tapered column structure that is thin at the top and thick at the bottom, which is convenient for the positioning sleeve 11 to be inserted and positioned, and the positioning column 15 and the positioning sleeve 11 are nested and cooperated to realize the positioning of the battery mounting frame 2 in the horizontal direction; the locking cylinder 6 is provided with a mushroom head cylinder rod, which cooperates with the waist hole provided on the locking fixing plate 12 to realize the locking or release of the battery mounting frame 2; the vertical movement of the cylinder rod mushroom head of the locking cylinder 6 is controlled by operating the solenoid valve, and the mushroom head is used to extend into the oblong hole of the locking fixing plate 12, and the mushroom head is controlled to rotate 90° and press the battery mounting frame 2 downward, and cooperate with the buffer pad 5 installed on the frame 1 to position the battery mounting frame 2 in the vertical direction, and at the same time realize the locking or release of the battery mounting frame 2; The discharge connector 4 includes a bottom fixing plate 24 fixed on the vehicle frame 1, and an upper mounting plate 23 elastically connected to the bottom fixing plate 24 through a plurality of elastic components 25; a quick-connection connector B22 corresponding to the quick-connection connector A8 is installed on the upper mounting plate 23, and the quick-connection connector B22 and the quick-connection connector A8 are male-female matching connection structures, which electrically connect the battery unit 7 to the scraper operation system to provide power for the scraper operation. The elastic component 25 includes a spring 26 arranged between the upper mounting plate 23 and the bottom fixing plate 24, and a long bolt and a closed nut embedded in the inner hole of the spring 26 and connecting the upper mounting plate 23 and the bottom fixing plate 24. The elastic connection between the upper mounting plate 23 and the bottom fixing plate 24 enables the discharge connector 4 to have a certain buffering capacity when the quick-connection connector A8 and the quick-connection connector B22 are quickly connected and inserted when the battery mounting frame 2 is replaced, ensuring that the two are stably and quickly connected, and avoiding the quick-connection connector being easily damaged if there is a slight error in the case of rigid connection.

[0027] Fast battery replacement process: When the equipment is operating normally, the battery unit 7 is installed inside the battery mounting frame 2, and the battery mounting frame 2 falls onto the rear frame 1 of the whole machine. The installation height is low and does not affect the normal operating field of the whole machine. The buffer pad 5 arranged between the mounting surface of the battery mounting frame 2 and the frame 1 reduces the shock of the battery mounting frame 2. The positioning sleeve 11 on the battery mounting frame 2 is inserted into the conical positioning column 15 on the frame positioning assembly 3. The operating solenoid valve in the cab controls the mushroom head cylinder rod of the locking cylinder 6 to be 90° to the oblong hole on the locking fixing plate 12 of the battery mounting frame 2, and presses the locking fixing plate 12 downward. At the same time, the quick-plug connector A8 at the bottom of the battery mounting frame 2 is connected to the quick-plug connector B22 at the top of the discharge connector 4 with a buffering function to achieve the smoothness of the high-voltage circuit and ensure the normal operation of the whole machine. When the battery unit 7 has 20% of the total power remaining, the battery needs to be replaced. Operate the solenoid valve in the cab to input hydraulic oil in the opposite direction, so that the mushroom head of the cylinder rod first moves vertically upward, and then reverses 90°. At this time, the mushroom head cylinder rod is parallel to the oblong hole and is directly above the oblong hole, entering the unlocked state. Then use the lifting tool, with the help of the four lifting rings 14 on the battery mounting frame 2, to slowly lift the battery mounting frame 2 from the bottom to the top of the frame 1, and simultaneously realize the disengagement of the quick connector A8 and the quick connector B22 to cut off the circuit connection. Take out the battery unit 7 from the battery mounting frame 2 and place it in a safe area, and insert it into the charging port through the charging gun 9 for charging; avoid vehicle-mounted charging in enclosed spaces with poor ventilation in mines, especially the safety hazards caused by fast charging, and improve operation safety; At the same time, install the fully charged second battery unit 7 into the battery mount 2 and install it as a whole into the frame 1: first use the lifting tool to lift the second battery mount 2 with the battery unit 7 to the top of the corresponding position of the frame 1, and then slowly drop it. After preliminary guidance by the rear guide plate 16, the left rear guide plate 17, the right rear guide plate 18, the front guide plate 19, the left front guide plate 20, and the right front guide plate 21, the round hole of the positioning sleeve 11 on the battery mount 2 begins to be inserted into the conical positioning column 15. As the bottom of the battery mount 2 falls to the final installation position of the buffer pad 5, the round hole of the positioning sleeve 11 is completely fitted with the conical column of the positioning column 15 to achieve precise positioning. While falling to the final installation position, the discharge connector 4 is precisely docked with the discharge port of the battery unit 7 to complete the high-voltage power supply to the entire machine. Then, the mushroom head cylinder rod of the locking cylinder 6 is controlled by the solenoid valve to rotate, so that the mushroom head rotates 90° and moves vertically downward, thereby pressing the locking fixing plate 12 of the battery mounting frame 2 to achieve the locking and fixing of the entire battery mounting frame 2. At this point, the entire battery replacement process is completed.

[0028] In addition: It should be noted that the above specific implementation is only an optimization scheme of this patent. Any changes or improvements made by technicians in this field based on the above concept are within the scope of protection of this patent.

Claims

1. A quick battery replacement device for an underground pure electric scraper, mounted on the rear frame (1) of the scraper, characterized in that: It comprises a battery mounting frame (2) having a battery unit (7) mounted therein, a guide mechanism arranged on a vehicle frame (1) for vertically guiding the battery mounting frame (2), a vehicle frame positioning assembly (3) for positioning and locking the battery mounting frame (2), and a discharge connector (4) for electrically connecting to the battery mounting frame (2); A quick-connect connector A (8) is provided at the bottom of the battery unit (7); The bottom of the battery mounting frame (2) is provided with a positioning sleeve (11) and a locking fixing plate (12) for cooperating with the frame positioning assembly (3) for positioning and locking; The guide mechanism is provided with a plurality of guide plates for guiding the battery mounting frame (2) in the front, rear, left, and right directions, thereby guiding the battery mounting frame (2) to enter the mounting position of the vehicle frame (1); The frame positioning assembly (3) comprises a positioning column (15) and a locking oil cylinder (6) mounted on the frame (1); the positioning column (15) and the positioning sleeve (11) are nested and cooperated to achieve the positioning effect on the battery mounting frame (2); the locking oil cylinder (6) is provided with a mushroom head cylinder rod, which cooperates with the waist hole provided on the locking fixing plate (12) to achieve the locking or releasing of the battery mounting frame (2); The discharge connector (4) is provided with a quick-connect connector B (22), which forms a male-female matching connection structure with the quick-connect connector A (8) to electrically connect the battery unit (7) to the scraper operating system.

2. The rapid battery replacement device for underground pure electric scraper according to claim 1 is characterized in that: A battery unit (7) is arranged in the battery mounting frame (2), and the battery unit (7) is connected to a charging port for connecting a charging gun (9) to charge the battery unit (7) and a quick-connect connector A (8) for discharging the battery unit (7) to the outside.

3. The rapid battery replacement device for underground pure electric scraper according to claim 1 is characterized in that: The battery unit (7) is a lithium battery pack or a storage battery group.

4. The rapid battery replacement device for underground pure electric scraper according to claim 1 is characterized in that: The battery mounting frame (2) comprises a frame (10), a sealing plate (13) and a lifting ring (14).

5. The rapid battery replacement device for underground pure electric scraper according to claim 1 is characterized in that: The guide mechanism comprises a front guide plate (19), a left front guide plate (20), a right front guide plate (21), a rear guide plate (16), a left rear guide plate (17), and a right rear guide plate (18) arranged on the vehicle frame (1); each guide plate guides the battery mounting frame (2) in multiple directions, namely, front left, front right, rear, left rear, and right rear, so as to guide the battery mounting frame (2) into an installation position on the vehicle frame (1).

6. The rapid battery replacement device for underground pure electric scraper according to claim 5 is characterized in that: The bottom edge of the battery mounting frame (2) is provided with a roller or a slider that contacts the front guide plate (19), the left front guide plate (20), the right front guide plate (21), the rear guide plate (16), the left rear guide plate (17), and the right rear guide plate (18).

7. The rapid battery replacement device for an underground pure electric scraper according to claim 1 is characterized in that: The frame (1) is provided with a plurality of frame positioning components (3), each frame positioning component (3) corresponding to the position of a group of positioning sleeves (11) and locking fixing plates (12) at the bottom of the battery mounting frame (2); the number and position of the frame positioning components (3) correspond to the number and position of the positioning sleeves (11) and the locking fixing plates (12).

8. The rapid battery replacement device for underground pure electric scraper according to claim 1 is characterized in that: The positioning column (15) is a tapered column structure that is thin at the top and thick at the bottom, which facilitates the insertion and positioning of the positioning sleeve (11).

9. The rapid battery replacement device for underground pure electric scraper according to claim 1 is characterized in that: The discharge connector (4) comprises a bottom fixing plate (24) fixedly mounted on the vehicle frame (1), and an upper mounting plate (23) elastically connected to the bottom fixing plate (24) via a plurality of elastic components (25); a quick-connect connector B (22) corresponding one-to-one to the quick-connect connector A (8) is mounted on the upper mounting plate (23).

10. The rapid battery replacement device for underground pure electric scraper according to claim 9, characterized in that: The elastic component (25) comprises a spring (26) arranged between the upper mounting plate (23) and the bottom fixing plate (24), and a long bolt and a closed nut embedded in the inner hole of the spring (26) and connecting the upper mounting plate (23) and the bottom fixing plate (24).

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