A small electric loader chassis facilitating disassembly of the battery pack

Abstract

The present invention discloses a small electric loader chassis facilitating disassembly of a battery pack, belonging to the technical field of loader chassis. It includes a chassis assembly and two side mounting plates arranged on the front and rear sides of the chassis assembly. A transmission rod through groove for the hub drive system to penetrate is formed in the side mounting plate. A battery containment box is fixedly arranged between the two side mounting plates. A rotary battery mounting rack is arranged in the battery containment box. A plurality of battery mounting slots are arranged in an annular array in the rotary battery mounting rack. A battery insertion slot penetrating through the inside and outside is formed in the battery containment box. When the rotary battery mounting rack rotates, the relative positions of the respective battery mounting slots and the battery insertion slot can be adjusted for loading and unloading of the battery. A sealing cover is fixed by screws on the battery insertion slot. An endothermic sheath is wrapped outside the battery containment box. The battery pack of the present invention can be quickly assembled and disassembled, facilitating positioning of the transmission rod, and has high application value.

Description

Technical Field

[0001] The present invention relates to a loader chassis, specifically a small electric loader chassis facilitating the disassembly of a battery pack, belonging to the technical field of loader chassis. Background Art

[0002] A small electric loader is a type of loader, with a compact size and light weight, having significant advantages in environments with limited space or requiring flexible operation. Its small design is more suitable for lightweight loading and handling work, such as construction sites, landscaping, agricultural production, etc. The small electric loader is powered by electricity, with advantages such as environmental protection, low noise, and easy maintenance. Since it does not use fuel, it does not emit harmful gases and is environmentally friendly. At the same time, the operating noise of the electric drive is relatively low and will not cause noise pollution to the user or the surrounding environment. The small electric loader has basic functions such as loading, unloading, and transporting, and can meet general material handling needs. Some advanced electric loaders are also equipped with intelligent control systems, enabling precise operation and efficient work.

[0003] Since the electric loader is battery-driven and does not use diesel, the demand for batteries is relatively large. The existing way of mounting batteries on the loader chassis is mostly to construct a battery compartment on the loader chassis and use a frame-type battery compartment to install the battery pack. However, for this way of mounting the battery pack on the loader chassis, when the battery pack needs to be disassembled, one side shell of the loader still needs to be removed, and then the batteries are removed one by one. It is relatively convenient to disassemble the batteries on the outside, but it is more difficult to disassemble the batteries on the inside. Especially for small electric loaders, the height of the battery compartment is limited, and it is very inconvenient to manually disassemble and take the batteries.

[0004] In addition, in order to ensure the stable operation of the battery pack and that the temperature does not get too high during operation, a cooling structure is usually installed outside the battery compartment. To ensure the cooling effect, some electric loaders use a water-cooling method to cool the battery compartment. However, the currently installed water-cooling structure has a relatively single function, and the water vapor or condensate generated by heat exchange either returns or is directly discharged, and cannot be effectively utilized, resulting in energy waste. At the same time, considering that there is lubricating oil sludge at the connection part between the current loader shaft and the positioning structure after long-term use, it is necessary to clean it regularly to ensure the lubrication effect. Summary of the Invention

[0005] The object of the present invention is to provide a small electric loader chassis that facilitates the disassembly of the battery pack, with a rotary structure for loading and unloading the battery. The loading and unloading of the battery pack are convenient and fast. The battery is cooled by a water-cooling component, and the transmission rod of the transmission system is automatically positioned by a self-lubricating axial center positioning component. Moreover, the water-cooling component can spray high-temperature water vapor to the side of the connection part between the transmission rod and the self-lubricating axial center positioning component through a steam nozzle, and use the high temperature and water to scour the sludge, so that the sludge is separated from the transmission rod, effectively preventing the sludge accumulation from affecting the lubrication effect.

[0006] The present invention realizes the above object through the following technical solutions. A small electric loader chassis that facilitates the disassembly of the battery pack includes a chassis assembly and two side mounting plates arranged on the front and rear sides of the chassis assembly. A transmission rod through groove for the hub transmission system to penetrate is formed in the side mounting plate. A battery receiving box is fixedly arranged between the two side mounting plates. A rotary battery mounting rack is arranged in the battery receiving box. A plurality of battery mounting grooves are arranged in a circular array in the rotary battery mounting rack. An internally and externally penetrating battery insertion groove is formed in the battery receiving box. When the rotary battery mounting rack rotates, the relative positions of the battery mounting grooves and the battery insertion groove can be adjusted for loading and unloading the battery. A sealing cover is fixed to the battery insertion groove with screws. In actual use, the sealing cover is opened to expose the battery insertion groove, and then the rotary battery mounting rack is controlled to rotate to align the battery mounting groove with the battery insertion groove. At this time, the battery can be loaded into the battery mounting groove. After loading, the rotary battery mounting rack is rotated again to transfer the battery into the internal space of the battery receiving box. The rotary battery mounting rack is continuously rotated until another empty battery mounting groove is aligned with the battery insertion groove, and then the battery is loaded. Repeat the above operation until each battery mounting groove is loaded with a battery, and the installation of the battery pack is completed. After the battery installation is completed, the sealing cover is reinstalled to block the battery insertion groove. When disassembling the battery pack, the battery can be taken out by operating in the reverse steps.

[0007] The outside of the battery housing box is wrapped with a heat-absorbing sheath. A water-cooling component capable of forming a circulating water path in the heat-absorbing sheath is fixedly installed in the chassis assembly. Cooling water is circulated into the heat-absorbing sheath through the water-cooling component. Both the heat-absorbing sheath and the battery housing box are made of materials with high thermal conductivity, which are used to efficiently absorb the heat generated by the battery. On the front and rear sides of the top of the chassis assembly, strip-shaped grooves are symmetrically provided. A self-lubricating shaft center positioning component for clamping and fixing the transmission rod of the wheel hub transmission system is installed in the strip-shaped grooves. Through the setting of the self-lubricating shaft center positioning component, the transmission rod of the transmission system can be automatically positioned after being installed without manual operation, and self-lubrication can be performed on the surface of the transmission rod after positioning, further improving the stability of the transmission rod. A steam nozzle is also provided on the water-cooling component, and the air outlet of the steam nozzle faces the side of the connection part between the transmission rod and the self-lubricating shaft center positioning component.

[0008] Preferably, the battery housing box includes a cylindrical box body. A plurality of arc-shaped clamping grooves for clamping the rotary battery mounting rack are formed in an annular array on the inner wall of the cylindrical box body. The battery placement groove is located on the cylindrical box body. The battery is installed through the battery placement groove, and the rotary battery mounting rack is clamped through the arc-shaped clamping grooves. While the rotary battery mounting rack has a rotating structure, a certain external force is still required to rotate it, and it has a stable connection structure under normal conditions to prevent the battery from shaking and separating during use.

[0009] Preferably, the rotary battery mounting rack includes a rotary base and arc-shaped convex strips arranged in an annular array on the outer side of the rotary base. The rotary base is installed in the cylindrical box body through a rotating shaft. The arc-shaped convex strips are clamped into the arc-shaped clamping grooves, and the material of the arc-shaped convex strips is an elastic material. The arc-shaped convex strips can be stably clamped by the arc-shaped clamping grooves without external force, preventing deflection between the rotary battery mounting rack and the cylindrical box body, and thus ensuring the stability of the battery. The elastic arc-shaped convex strips can automatically retract when the rotary base rotates under the action of an external force, so that the rotary base is a rotatable structure until the arc-shaped convex strips are docked with another arc-shaped clamping groove to achieve fixation, so that the rotary base still has a local fixation effect while rotating, ensuring the stability of battery loading and unloading.

[0010] Preferably, the battery installation groove is located on the outer side of the rotary base. A spring piece is fixedly arranged on the inner wall of the battery installation groove, which is used to apply an outward pushing force from the bottom, so that after the battery is inserted, it can be pushed by the spring piece against the inner wall of the cylindrical box body for fixation, making the battery tightly connected to the cylindrical box body under the extrusion of the spring piece after being inserted, and the structure is relatively stable. When the battery rotates to the side of the battery insertion groove, the spring piece can push the battery out into the battery insertion groove. When the battery needs to be removed, only need to remove the sealing cover, and then align each battery installation groove with the battery insertion groove in turn. When the battery moves to the battery insertion groove along with the battery installation groove, it gets out of the restriction of the cylindrical box body, and the spring piece can pop the battery outwards, so there is no need to manually remove the battery, and the disassembly is more convenient.

[0011] Preferably, a rotating handle is fixedly arranged on one side of the rotary base through an extension rod. An operation port for exposing the rotating handle is opened on one side of the cylindrical box body. By rotating the rotating handle, the rotary base at one end of the extension rod is driven to rotate, thereby controlling the position of the battery and facilitating the quick loading and unloading of the battery. The reserved operation port makes it convenient to manually control during the use of this application. In specific applications, a driving component can also be installed on the side mounting plate to replace manual rotation adjustment with electric drive.

[0012] Preferably, the water cooling component includes a water storage tank fixedly installed on the top of the chassis assembly. A refrigerating component is arranged in the water storage tank. An outlet water pump for sucking out the water in the water storage tank and communicating with its inner cavity is arranged on the top of the water storage tank. The outlet water pump is communicated with the heat absorption sheath through a water outlet pipe. A suction water pump for sending the water in the heat absorption sheath into the water storage tank and communicating with its inner cavity is arranged on one side of the bottom of the water storage tank. The suction water pump is communicated with the heat absorption sheath through a return pipe. The water in the water storage tank is sucked in by the outlet water pump and introduced into the heat absorption sheath through the water outlet pipe. The heat absorption sheath has a circulation path. After the cold water passes through the heat absorption sheath for one circle, it enters the return pipe, and then the water after absorbing heat is sucked in by opening the suction water pump. The refrigerating component in the water storage tank continuously works to cool the water, maintaining an efficient and continuous cooling effect, which is used to efficiently absorb the heat generated by the battery to ensure that the battery works stably at a safe temperature. Only one of the outlet water pump and the suction water pump needs to be opened during the circulating cooling, and the suction water pump is selected to be opened when the water in the heat absorption sheath needs to be fully recovered.

[0013] Preferably, an air pump is further provided at the top of the inner wall of the water storage tank. The steam spray pipe is installed on the water storage tank and communicated with the air outlet end of the air pump, so that the hot water steam in the water storage tank can be discharged through the steam spray pipe. High-temperature water vapor is sprayed to the side of the connection part between the transmission rod and the self-lubricating shaft positioning assembly through the steam spray pipe, which is used to wash some lubricating sludge generated after the connection part of the transmission rod and the self-lubricating shaft positioning assembly is used. The sludge is washed to a certain extent by high temperature and water, so that the sludge is separated from the transmission rod, effectively preventing the sludge accumulation from affecting the lubrication effect.

[0014] Preferably, the self-lubricating shaft positioning assembly includes a double-shaft motor fixedly installed at the middle position of the strip-shaped groove and two bidirectional lead screws respectively rotatably installed on the two side walls of the strip-shaped groove. The two bidirectional lead screws are respectively fixedly connected to the two output shafts of the double-shaft motor. The two bidirectional lead screws can be driven to rotate by turning on the double-shaft motor.

[0015] Preferably, the self-lubricating shaft positioning assembly further includes a sliding seat slidably clamped in the strip-shaped groove. Two sliding seats are symmetrically arranged on the two opposite threads of the bidirectional lead screw. An L-shaped connecting rod is fixedly arranged at the top of the sliding seat. One end of the top of the L-shaped connecting rod faces the transmission rod through groove. An arc-shaped limiting piece is fixedly arranged at one end of the top of the L-shaped connecting rod. A graphite roller is rotatably arranged in the arc-shaped limiting piece. The two arc-shaped limiting pieces on one side of the bidirectional lead screw are respectively located on both sides of the transmission rod through groove. The sliding seat can only move horizontally in the strip-shaped groove and cannot rotate. Therefore, when the bidirectional lead screw rotates, the sliding seat can be pushed to move. Since the two sliding seats are respectively located on the screw thread sections of the two lead screws with opposite directions, when a single bidirectional lead screw rotates, the two sliding seats connected to it will only approach or move away from each other, and then the two arc-shaped limiting pieces approach or move away from each other.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The battery is installed in a rotary structure in this application, and the overall structure is cylindrical, with a large space utilization rate. Especially for small electric loaders, the battery loading and unloading port in this application is equivalent to the battery placement slot and the battery installation slot, occupying a very small space. In actual use, only a small maintenance port needs to be set on the loader shell, and the loading and unloading work of the battery pack is very convenient and fast.

[0018] 2. In this application, the water cooling component can circulate cooling water into the heat absorption sheath. Both the heat absorption sheath and the battery housing are made of materials with high thermal conductivity, which are used to efficiently absorb the heat generated by the battery to ensure that the battery works stably at a safe temperature.

[0019] 3. The present application automatically positions the transmission rod of the transmission system through the self-lubricating shaft center positioning component, enabling automatic positioning after the transmission rod is installed without manual operation, and being able to perform self-lubrication on the surface of the transmission rod after positioning, further improving the stability of the transmission rod.

[0020] 4. The present application sprays high-temperature water vapor from the steam nozzle to the side of the connection part between the transmission rod and the self-lubricating shaft center positioning component, for flushing some lubricating sludge generated after use at the connection part between the transmission rod and the self-lubricating shaft center positioning component. The sludge is flushed to a certain extent by the high temperature and water, so that the sludge detaches from the transmission rod, effectively preventing the accumulation of sludge from affecting the lubrication effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the structure from the rear side view of the present invention.

[0023] Figure 3 It is a schematic diagram of the assembly structure of the battery housing box and the rotary battery mounting bracket in the present invention.

[0024] Figure 4 It is a schematic diagram of the structure of the battery housing box in the present invention.

[0025] Figure 5 It is a schematic diagram of the structure of the rotary battery mounting bracket in the present invention.

[0026] Figure 6 It is a schematic diagram of the positions of the water cooling component and the self-lubricating shaft center positioning component in the present invention.

[0027] Figure 7 It is a schematic diagram of the structure of the water cooling component in the present invention.

[0028] Figure 8 It is a schematic diagram of the structure of the self-lubricating shaft center positioning component in the present invention.

[0029] Figure 9 is Figure 8 a partial enlarged view of part A in

[0030] In the figure: 1. Chassis assembly; 101. Strip groove; 2. Side mounting plate; 3. Transmission rod through groove; 4. Battery storage box; 401. Cylindrical box body; 402. Arc-shaped card slot; 403. Battery insertion slot; 404. Operation port; 5. Rotary battery mounting bracket; 501. Rotary base; 502. Rotating shaft; 503. Battery mounting slot; 504. Spring piece; 505. Arc-shaped rib; 506. Extension rod; 507. Rotating handle; 6. Heat absorption sheath; 7. Water cooling component; 701. Water storage tank; 702. Water outlet pump; 703. Water outlet pipe; 704. Water extraction pump; 705. Return pipe; 706. Steam spray pipe; 8. Self-lubricating axis positioning component; 801. Biaxial motor; 802. Bidirectional lead screw; 803. Sliding seat; 804. L-shaped connecting rod; 805. Arc-shaped limiting piece; 806. Graphite roller; 9. Sealing cover. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figures 1-9 As shown, a chassis of a small electric loader facilitating the disassembly of a battery pack includes a chassis assembly 1 and two side mounting plates 2 disposed on the front and rear sides of the chassis assembly 1. A transmission rod through groove 3 for the penetration of a wheel hub drive system is formed in the side mounting plate 2, which is a basic structure of the chassis of the electric loader. During use, basic components of the loader such as the drive system and the braking system can be installed on the chassis assembly 1.

[0033] A battery storage box 4 is fixedly arranged between two side mounting plates 2. A rotary battery mounting rack 5 is arranged in the battery storage box 4. A plurality of battery mounting slots 503 are arranged in a circular array in the rotary battery mounting rack 5. A battery insertion slot 403 penetrating through the inside and outside is formed in the battery storage box 4. When the rotary battery mounting rack 5 rotates, the relative positions of the battery mounting slots 503 and the battery insertion slot 403 can be adjusted for the loading and unloading of the battery. A sealing cover 9 is fixed to the battery insertion slot 403 with screws. During actual use, the sealing cover 9 is opened to expose the battery insertion slot 403. Then, the rotary battery mounting rack 5 is controlled to rotate to align the battery mounting slot 503 with the battery insertion slot 403. At this time, the battery can be loaded into the battery mounting slot 503. After loading, the rotary battery mounting rack 5 is rotated again to transfer the battery into the internal space of the battery storage box 4. The rotary battery mounting rack 5 is continuously rotated until another empty battery mounting slot 503 is aligned with the battery insertion slot 403, and then the battery is loaded. The above operation is repeated until each battery mounting slot 503 is loaded with a battery, and the installation of the battery pack can be completed. After the battery installation is completed, the sealing cover 9 is reinstalled to block the battery insertion slot 403. When disassembling the battery pack, the battery can be taken out only by performing the opposite operation steps. Compared with the existing frame-type battery pack, in this application, the battery is installed in a rotary structure, and the overall structure is cylindrical, with a large space utilization rate. Especially for a small electric loader, the space is limited. Using a traditional frame-type battery rack to install the battery not only fails to effectively utilize the space, but also requires the entire outer shell of the loader to be removed during disassembly, which is very inconvenient. The battery loading and unloading port in this application is equivalent to the battery insertion slot 403 and the battery mounting slot 503, occupying extremely small space. During actual use, only a relatively small maintenance port needs to be set on the outer shell of the loader, and the loading and unloading of the battery pack is very convenient and fast.

[0034] The outside of the battery containment box 4 is wrapped with a heat-absorbing sheath 6. A water-cooling component 7 capable of forming a circulating water path within the heat-absorbing sheath 6 is fixedly installed within the chassis assembly 1. Cooling water is circulated into the heat-absorbing sheath 6 through the water-cooling component 7. Both the heat-absorbing sheath 6 and the battery containment box 4 are made of materials with high thermal conductivity, which are used to efficiently absorb the heat generated by the battery to ensure that the battery operates stably at a safe temperature. On the front and rear sides of the top of the chassis assembly 1, strip-shaped grooves 101 are symmetrically opened. A self-lubricating axial positioning component 8 for clamping and fixing the transmission rod of the wheel hub drive system is installed within the strip-shaped grooves 101. Through the setting of the self-lubricating axial positioning component 8, after the transmission rod of the drive system is installed, it can be automatically positioned without manual operation, and after positioning, self-lubrication can be performed on the surface of the transmission rod, further improving the stability of the transmission rod. A steam nozzle 706 is also provided on the water-cooling component 7. The outlet of the steam nozzle 706 faces the side of the connection part between the transmission rod and the self-lubricating axial positioning component 8. After the connection part between the transmission rod and the self-lubricating axial positioning component 8 is used for a period of time, some lubricating sludge will be generated. The setting of the steam nozzle 706 is intended to spray high-temperature water vapor onto this sludge, and use the high temperature and water to wash the sludge to a certain extent, so that the sludge detaches from the transmission rod, effectively preventing the accumulation of sludge from affecting the lubrication effect.

[0035] Specifically, as Figure 3 and Figure 4 shown, the battery containment box 4 includes a cylindrical box body 401. A number of arc-shaped slots 402 for clamping the rotary battery mounting bracket 5 are arranged in a circular array on the inner wall of the cylindrical box body 401. A battery placement slot 403 is located on the cylindrical box body 401. The battery is installed through the battery placement slot 403, and the rotary battery mounting bracket 5 is clamped through the arc-shaped slots 402. While the rotary battery mounting bracket 5 has a rotating structure, a certain external force is still required for it to rotate, and it has a stable connection structure under normal conditions to prevent the battery from shaking and separating during use.

[0036] Specifically, as Figure 3 and Figure 5As shown, the rotatable battery mounting rack 5 includes a rotatable base 501 and arcuate ridges 505 arranged in a circular array on the outer side of the rotatable base 501. The rotatable base 501 is mounted in the cylindrical housing 401 through a rotating shaft 502. The arcuate ridges 505 are inserted into the arcuate slots 402. The arcuate ridges 505 are made of elastic material. The arcuate ridges 505 can be stably clamped by the arcuate slots 402 without being acted upon by external forces, thereby preventing deflection between the rotatable battery mounting rack 5 and the cylindrical housing 401, thereby ensuring the stability of the battery. The arcuate ridges 505 made of elastic material can automatically retract when the rotatable base 501 is rotated under the action of external forces, thereby making the rotatable base 501 a rotatable structure until the arcuate ridges 505 are fixed when docked with another arcuate slot 402, thereby making the rotatable base 501 still have a local fixing effect while rotating, thereby ensuring the stability of battery loading and unloading.

[0037] The battery installation slot 503 is located on the outer side of the rotating base 501, and a spring sheet 504 is fixedly provided on the inner wall of the battery installation slot 503 for applying an outward pushing force from the bottom, so that the battery can be pushed to the inner wall of the cylindrical case 401 by the spring sheet 504 after being installed, so that the battery is tightly connected to the cylindrical case 401 under the squeezing of the spring sheet 504 after being installed, and the structure is relatively stable. When the battery is rotated to one side of the battery insertion slot 403, the spring sheet 504 can push the battery out into the battery insertion slot 403. When the battery needs to be removed, it is only necessary to remove the sealing cover 9, and then align each battery installation slot 503 with the battery insertion slot 403 in turn. When the battery moves to the battery insertion slot 403 as the battery installation slot 503 moves, the battery is freed from the restriction of the cylindrical case 401, and the spring sheet 504 can pop the battery outward, so that there is no need to manually buckle the battery out, and disassembly is more convenient.

[0038] A rotating handle 507 is fixedly provided on one side of the rotating base 501 through an extension rod 506, and an operating port 404 for exposing the rotating handle 507 is opened on one side of the cylindrical box 401. The rotating handle 507 is rotated to drive the rotating base 501 at one end of the extension rod 506 to rotate, thereby controlling the battery position, which is convenient for quick loading and unloading of the battery. The reservation of the operating port 404 makes it easy to manually control when using this application. In specific applications, a driving component can also be installed on the side mounting plate 2 to replace manual rotation adjustment with electric drive.

[0039] Specific as Figure 7As shown in the figure, the water-cooling component 7 includes a water storage tank 701 fixedly installed on the top of the chassis assembly 1. A refrigerating element is arranged in the water storage tank 701. At the top of the water storage tank 701, a water pump 702 is provided, which is communicated with the inner cavity of the water storage tank 701 and used to suck out the water in the water storage tank 701. The water pump 702 is communicated with the heat absorption sheath 6 through a water outlet pipe 703. On one side of the bottom of the water storage tank 701, a water pump 704 is provided, which is communicated with the inner cavity of the water storage tank 701 and used to send the water in the heat absorption sheath 6 into the water storage tank 701. The water pump 704 is communicated with the heat absorption sheath 6 through a return pipe 705. In actual use, the water pump 702 sucks the water in the water storage tank 701 and introduces it into the heat absorption sheath 6 through the water outlet pipe 703. The heat absorption sheath 6 has a circulation path. After the cold water passes through the heat absorption sheath 6 for one circle, it enters the return pipe 705, and then the water pump 704 is turned on to suck the water after absorbing heat. The refrigerating element in the water storage tank 701 is continuously turned on to cool the water, maintaining an efficient and continuous cooling effect, which is used to efficiently absorb the heat generated by the battery to ensure that the battery works stably at a safe temperature. The water pump 702 and the water pump 704 can be turned on alternately during the cycle cooling, and the water pump 704 is selected to be turned on when it is necessary to fully recover the water in the heat absorption sheath 6.

[0040] An air pump is also arranged at the top inner wall of the water storage tank 701. A steam spray pipe 706 is installed on the water storage tank 701 and communicated with the air outlet end of the air pump, so that the hot water steam in the water storage tank 701 can be discharged through the steam spray pipe 706. High-temperature water vapor is sprayed to the side of the connection part between the transmission rod and the self-lubricating shaft center positioning component 8 through the steam spray pipe 706, which is used to wash some lubricating sludge generated after the connection part of the transmission rod and the self-lubricating shaft center positioning component 8 is used. The sludge is washed to a certain extent by the high temperature and water, so that the sludge is separated from the transmission rod, effectively preventing the sludge accumulation from affecting the lubrication effect.

[0041] Specifically, as Figure 8 and Figure 9As shown in the figure, the self-lubricating shaft center positioning assembly 8 includes a double-shaft motor 801 fixedly installed at the middle position of the strip-shaped groove 101 and two bidirectional lead screws 802 rotatably installed on the two side walls of the strip-shaped groove 101 respectively. The two bidirectional lead screws 802 are respectively fixedly connected to the two output shafts of the double-shaft motor 801. By starting the double-shaft motor 801, the two bidirectional lead screws 802 can be driven to rotate. The self-lubricating shaft center positioning assembly 8 further includes a sliding seat 803 slidably clamped in the strip-shaped groove 101. Two sliding seats 803 are symmetrically arranged on the two opposite threads of the bidirectional lead screw 802. An L-shaped connecting rod 804 is fixedly arranged at the top of the sliding seat 803. One end of the top of the L-shaped connecting rod 804 faces the transmission rod through groove 3. An arc-shaped limiting piece 805 is fixedly arranged at one end of the top of the L-shaped connecting rod 804. A graphite roller 806 is rotatably arranged in the arc-shaped limiting piece 805. The two arc-shaped limiting pieces 805 on one side of the single bidirectional lead screw 802 are respectively located on both sides of the transmission rod through groove 3. The sliding seat 803 placed in the strip-shaped groove 101 can only move horizontally and cannot rotate. Therefore, when the bidirectional lead screw 802 rotates, the sliding seat 803 can be pushed to move. Since the two sliding seats 803 are respectively located on the screw thread sections of the two lead screws with opposite directions, when a single bidirectional lead screw 802 rotates, the two sliding seats 803 connected to it will only approach or move away from each other, and then the two arc-shaped limiting pieces 805 will approach or move away from each other. In practical applications, first, control the two arc-shaped limiting pieces 805 to move away from each other. After the loader transmission system is initially installed and the transmission rod is between the two arc-shaped limiting pieces 805, then control the two arc-shaped limiting pieces 805 to approach each other. By the approach of the two arc-shaped limiting pieces 805, the extrusion positioning of the transmission rod can be realized. The graphite roller 806 in the arc-shaped limiting piece 805 can also play a self-lubricating effect, so that the connection part with the transmission rod is smoother and the surrounding area is lubricated, which has high application value.

[0042] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0043] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A small electric loader chassis facilitating the disassembly of a battery pack, comprising a chassis assembly (1) and two side mounting plates (2) arranged on the front and rear sides of the chassis assembly (1), wherein a transmission rod through groove (3) for a wheel hub drive system to penetrate is formed in the side mounting plate (2), and it is characterized in that: A battery storage box (4) is fixedly arranged between the two side mounting plates (2). A rotary battery mounting rack (5) is arranged in the battery storage box (4). A plurality of battery mounting slots (503) are arranged in a circular array in the rotary battery mounting rack (5). A battery insertion slot (403) penetrating through the inside and outside is formed in the battery storage box (4). When the rotary battery mounting rack (5) rotates, the relative positions of the battery mounting slots (503) and the battery insertion slot (403) can be adjusted for loading and unloading of the battery. A sealing cover (9) is fixed to the battery insertion slot (403) with screws; An endothermic sheath (6) is wrapped outside the battery storage box (4). A water-cooling component (7) capable of forming a circulating water path in the endothermic sheath (6) is fixedly installed in the chassis assembly (1). Strip-shaped slots (101) are symmetrically formed in the front and rear sides of the top of the chassis assembly (1). A self-lubricating shaft center positioning component (8) for clamping and fixing a transmission rod of a wheel hub transmission system is installed in the strip-shaped slots (101). A steam nozzle (706) is further arranged on the water-cooling component (7). The air outlet of the steam nozzle (706) faces the side of the connection part between the transmission rod and the self-lubricating shaft center positioning component (8).

2. The small electric loader chassis facilitating the disassembly of the battery pack according to claim 1, wherein: The battery storage box (4) includes a cylindrical box body (401). A plurality of arc-shaped clamping slots (402) for clamping the rotary battery mounting rack (5) are formed in a circular array on the inner wall of the cylindrical box body (401). The battery insertion slot (403) is located on the cylindrical box body (401).

3. The small electric loader chassis facilitating the disassembly of the battery pack according to claim 2, wherein: The rotary battery mounting rack (5) includes a rotary base (501) and arc-shaped convex strips (505) arranged in a circular array on the outer side of the rotary base (501). The rotary base (501) is installed in the cylindrical box body (401) through a rotating shaft (502). The arc-shaped convex strips (505) are clamped into the arc-shaped clamping slots (402), and the arc-shaped convex strips (505) are made of an elastic material.

4. The small electric loader chassis facilitating the disassembly of the battery pack according to claim 3, characterized in that: The battery mounting slots (503) are located on the outer side of the rotary base (501). Spring pieces (504) are fixedly arranged on the inner walls of the battery mounting slots (503) to apply an outward pushing force from the bottom, so that the battery can be pushed against the inner wall of the cylindrical box body (401) by the spring pieces (504) for fixation after being loaded. When the battery rotates to one side of the battery insertion slot (403), the spring pieces (504) can push the battery out into the battery insertion slot (403).

5. The small electric loader chassis facilitating the disassembly of a battery pack according to claim 4, characterized in that: A rotating handle (507) is fixedly arranged on one side of the rotary base (501) through an extension rod (506). An operation opening (404) for exposing the rotating handle (507) is formed in one side of the cylindrical box body (401).

6. The small electric loader chassis facilitating the disassembly of a battery pack according to claim 1, wherein: The water-cooling component (7) includes a water storage tank (701) fixedly installed on the top of the chassis assembly (1). A refrigerating element is arranged in the water storage tank (701). An outlet water pump (702) is arranged on the top of the water storage tank (701) and is communicated with its inner cavity for sucking out the water in the water storage tank (701). The outlet water pump (702) is communicated with the heat absorption sheath (6) through an outlet water pipe (703). A suction water pump (704) is arranged on one side of the bottom of the water storage tank (701) and is communicated with its inner cavity for sending the water in the heat absorption sheath (6) into the water storage tank (701). The suction water pump (704) is communicated with the heat absorption sheath (6) through a return pipe (705).

7. The small electric loader chassis facilitating the disassembly of the battery pack according to claim 6, characterized in that: An air pump is further arranged on the inner wall top of the water storage tank (701). The steam spray pipe (706) is installed on the water storage tank (701) and is communicated with the air outlet end of the air pump, so that the hot water steam in the water storage tank (701) can be discharged through the steam spray pipe (706).

8. The small electric loader chassis facilitating the disassembly of a battery pack according to claim 1, wherein: The self-lubricating axis positioning component (8) includes a dual-axis motor (801) fixedly installed at the middle position of the strip-shaped groove (101) and bidirectional lead screws (802) respectively rotatably installed on the two side walls of the strip-shaped groove (101). The two bidirectional lead screws (802) are respectively fixedly connected with the two output shafts of the dual-axis motor (801).

9. The small electric loader chassis facilitating battery pack disassembly according to claim 8, characterized in that: The self-lubricating axis positioning component (8) further includes a sliding seat (803) slidably clamped in the strip-shaped groove (101). Two sliding seats (803) are symmetrically arranged on the two opposite threads of the bidirectional lead screw (802). An L-shaped connecting rod (804) is fixedly arranged on the top of the sliding seat (803). One end of the top of the L-shaped connecting rod (804) faces the transmission rod through groove (3). An arc-shaped limiting piece (805) is fixedly arranged at one end of the top of the L-shaped connecting rod (804). A graphite roller (806) is rotatably arranged in the arc-shaped limiting piece (805). The two arc-shaped limiting pieces (805) on one side of the bidirectional lead screw (802) are respectively located on both sides of the transmission rod through groove (3).

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