New energy electric forklift gearbox

By designing a robust connection between the motor and the gearbox and a heat dissipation mechanism, the problems of high processing costs and maintenance difficulties of high-precision helical gears in electric forklift gearboxes have been solved. This has resulted in a stable structure, noise reduction, and efficient heat dissipation, thereby improving the reliability and ease of maintenance of the equipment.

CN223725343UActive Publication Date: 2025-12-26CHANGZHOU YUBAO TRANSMISSION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520297291.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2025-12-26
Estimated Expiration
2035-02-24

AI Technical Summary

Technical Problem

The high-precision helical gears in existing electric forklift gearboxes are expensive to manufacture, and their complex internal structure leads to high maintenance requirements, making repairs difficult and increasing repair time and costs once a fault occurs.

Method used

The design incorporates a robust connection between the motor and gearbox, a tight assembly of the housing with bolts, and incorporates a heat dissipation mechanism and locating pins to ensure structural stability, reduce noise, improve heat dissipation efficiency, and simplify maintenance.

Benefits of technology

It improves structural stability, reduces noise, extends service life, simplifies maintenance, and reduces the risk of failure and repair costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of new energy, and discloses a new energy electric forklift gearbox which comprises a first motor, the right side of the outer wall of the first motor is fixedly connected with a gearbox body, the right side of the outer wall of the gearbox body is provided with a first shell, and the periphery of the right side of the outer wall of the first shell is in threaded connection with a plurality of bolts. A second shell is arranged on the left side of the outer wall of the first shell, a rotating shaft is fixedly connected to the middle of the left side of the outer wall of the first shell, an output gear is rotationally connected to the right end of the outer wall of the rotating shaft, a first bearing is arranged on the left side of the outer wall of the rotating shaft, and an oil seal is arranged on the left side of the outer wall of the first bearing. According to the utility model, the motor I is stably connected with the gear box body, through precise calculation and unique gear structure design, the gear precision is improved, the noise during gear transmission is effectively reduced, the forklift runs more stably and quietly, the working comfort of operators is improved, and the interference to the surrounding environment is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to new energy technology field especially relates to a new energy electric fork truck gear box. BACKGROUND

[0002] Electric fork truck is the fork truck that drives work by electric power, and the goods fork is operated outside the front wheel center line, in order to balance the overturning moment produced by the weight of goods, the balance weight is installed at the tail of the vehicle body, which has the characteristics of good stability and strong carrying capacity, and is suitable for loading and unloading and carrying various goods.

[0003] Through the search, the patent of China patent publication number is: CN113236713A, a low noise gear box for electric fork truck, the input shaft is rotatably installed in the right side of the box body corresponding to the input flange, the output end of the external power equipment is connected with the outer end of the input shaft, a gear one is sleeved on the middle part of the input shaft, the output shaft is rotatably installed in the middle side of the box body, a gear two is sleeved on the middle part of the output shaft, the gear two is engaged with the gear one, the inner end of the output shaft extends into the box body and is connected with an output flange at the end, a connecting flange is installed on the left side of the outer end face of the box body, and a hand brake is installed on the outer side of the connecting flange, a brake shaft is rotatably installed in the box body corresponding to the position of the hand brake, the brake shaft is connected with the hand brake and extends out of the box body, a brake gear engaged with the gear two is sleeved on the middle part of the brake shaft, the brake gear, the gear one and the gear two are all helical gears with large coincidence degree, and all the gears are subjected to gear grinding processing, the invention has the advantages of convenient use and low noise, but the high-precision helical gear and the gear grinding processing technology have relatively high manufacturing cost, moreover, the complex internal structure has high technical requirements for maintenance and repair, and the repair difficulty is large, once the fault occurs, the repair time and cost will increase. UTILITY MODEL CONTENTS

[0004] In order to make up for the above shortcomings, the utility model provides a new energy electric fork truck gear box, which aims at improving the high-precision helical gear and the gear grinding processing technology, which has relatively high manufacturing cost, moreover, the complex internal structure has high technical requirements for maintenance and repair, and the repair difficulty is large, once the fault occurs, the repair time and cost will increase.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: a new energy electric fork truck gear box, including motor one, the outer wall right side fixed connection of motor one has the gear box body, the outer wall right side of gear box body is provided with the casing one, the outer wall right side all screw threads of casing one are connected with a plurality of bolts, the outer wall left side of casing one is provided with casing two, the outer wall left side fixed connection of casing one has the rotating shaft, the outer wall right end rotation of rotating shaft is connected with the output gear, the outer wall left side of rotating shaft is provided with bearing one, the outer wall left side of bearing one is provided with the oil blanket, the outer wall left end of rotating shaft is provided with the outside gear, the left side bottom of casing one is provided with the output pinion, the outer wall right side screw thread connection of output pinion has a big tooth, the outer wall left end of output pinion is provided with bearing two, the outer wall top of motor one is provided with the heat dissipation mechanism.

[0006] Through the above technical scheme: through the gear box with motor one as the important power starting point, the solid outer wall right side of motor one is stably connected with the gear box body, and the gear box body provides stable basic support for the whole transmission system, the right side of the gear box body, the casing one is cleverly arranged, and the right side is screw connected through a plurality of bolts, which not only guarantees the stability of the structure, but also facilitates disassembly operation during subsequent maintenance, and on the left side of the casing one, the casing two is closely matched and cooperates, and it is worth mentioning that the rotating shaft is firmly fixed in the middle part of the left side of the casing one, the rotating shaft is flexibly connected with the output gear as one of the core components of the whole gear box transmission, and can efficiently transmit power, and the bearing one and the oil blanket are sequentially arranged on the left side of the rotating shaft, the bearing one provides reliable guarantee for the stable rotation of the rotating shaft, reduces friction loss, and the oil blanket plays a key protection role, prevents lubricating oil leakage, and ensures the sealing property and stability of the whole system.

[0007] As a further description of the above technical scheme:

[0008] The heat dissipation mechanism includes a fixed box, the outer wall bottom of the fixed box is fixedly connected to the outer wall top of the motor one, a plurality of heat dissipation holes are formed in the inner wall bottom of the fixed box, a partition plate is arranged in the inner wall middle portion of the fixed box, two horizontal plates are fixedly connected to the outer wall left side front and rear end of the partition plate, two micro-motors two are fixedly connected to the inner wall left side front and rear end of the fixed box, and rotating fans are fixedly connected to the output ends of the two micro-motors two.

[0009] Through the above technical scheme: through the fixed box inner wall bottom that multiple carefully opened heat dissipation holes, like a sensitive channel, hot air can smoothly enter the fixed box inside, open the heat dissipation journey, after entering the fixed box, the internal structure design is more ingenious, the partition plate in the middle divides the space into two, the same intelligent guide, plan a clear path for the air flow, and the outer wall left side of the partition plate front and rear end horizontal plate, just like the loyal helper, thereby providing stable support for the subsequent components.

[0010] As a further description of the above technical scheme:

[0011] The outer wall left side of the shell one is fixedly connected with a plurality of positioning pins, and the outer wall of the plurality of positioning pins is clamped with the shell two.

[0012] Through the above technical scheme: through the outer wall left side of the shell one, the upper and lower ends are firmly connected with a plurality of positioning pins, the positioning pin is like a precise positioner, the outer wall is clamped with the shell two, when the equipment is assembled, the positioning pin can quickly guide the shell two to accurately butt joint with the shell one, greatly shortening the assembly time and improving the work efficiency.

[0013] As a further description of the above technical scheme:

[0014] The outer wall right side of the shell one is provided with a plurality of mounting grooves three, and the inner wall of the plurality of mounting grooves three is threadedly connected with the bolt.

[0015] Through the above technical scheme: through this connection mode, the operation is simple during assembly, the worker can quickly screw the bolt into the mounting groove three to complete the connection, improve the assembly efficiency, in the equipment operation, the friction and self-locking force generated by the threaded connection can effectively resist the vibration, impact external force, guarantee the stability of the connection, reduce the risk of equipment failure, when the equipment is maintained, the bolt is screwed out to easily disassemble the related components, after the maintenance is completed, the reinstallation is also simple and easy, which greatly facilitates the maintenance and maintenance work of the equipment.

[0016] As a further description of the above technical scheme:

[0017] The front and rear sides of the fixed box are fixedly connected with two fixed blocks, and the top of the two fixed blocks is threadedly connected with a plurality of screws one.

[0018] Through the technical scheme, the two fixing blocks are fixedly and firmly connected to the front and rear sides of the fixing box, the fixing blocks are made of high-strength metal, are tightly connected to the fixing box through welding or bolt fastening, are uniformly distributed in position, provide stable support for the fixing box, a plurality of threaded holes are arranged at the top of each of the two fixing blocks, are threadedly connected with a plurality of screws, during installation, the fixing box is placed at a predetermined position, the threaded holes are aligned with the mounting surface holes, the screws are screwed in by using a simple tool, and the fixing box is tightly connected to the mounting surface by using the self-locking characteristics of the threads.

[0019] As a further description of the above technical scheme,

[0020] The inner wall left side of the fixing box is provided with two mounting holes at the front and rear ends, and the inner walls of the two mounting holes are fixedly connected with the micro motor two.

[0021] Through the technical scheme, the two fixing blocks are fixedly and firmly connected to the front and rear sides of the fixing box, the fixing blocks are made of high-strength metal, are tightly connected to the fixing box through welding or bolt fastening, are uniformly distributed in position, provide stable support for the fixing box, a plurality of threaded holes are arranged at the top of each of the two fixing blocks, are threadedly connected with a plurality of screws, during installation, the fixing box is placed at a predetermined position, the threaded holes are aligned with the mounting surface holes, the screws are screwed in by using a simple tool, and the fixing box is tightly connected to the mounting surface by using the self-locking characteristics of the threads.

[0022] As a further description of the above technical scheme,

[0023] The inner wall left side of the fixing box is provided with two mounting holes at the front and rear ends, and the inner walls of the two mounting holes are fixedly connected with the micro motor two.

[0024] Through the technical scheme, the two fixing blocks are fixedly and firmly connected to the front and rear sides of the fixing box, the fixing blocks are made of high-strength metal, are tightly connected to the fixing box through welding or bolt fastening, are uniformly distributed in position, provide stable support for the fixing box, a plurality of threaded holes are arranged at the top of each of the two fixing blocks, are threadedly connected with a plurality of screws, during installation, the fixing box is placed at a predetermined position, the threaded holes are aligned with the mounting surface holes, the screws are screwed in by using a simple tool, and the fixing box is tightly connected to the mounting surface by using the self-locking characteristics of the threads.

[0025] As a further description of the above technical scheme,

[0026] The top of the fixing box is provided with a heat dissipation plate, the outer wall left and right sides of the heat dissipation plate are threadedly connected with a plurality of screws two, and the bottoms of the plurality of screws two are threadedly connected with the top left and right sides of the fixing box.

[0027] Through the technical scheme, the two fixing blocks are fixedly and firmly connected to the front and rear sides of the fixing box, the fixing blocks are made of high-strength metal, are tightly connected to the fixing box through welding or bolt fastening, are uniformly distributed in position, provide stable support for the fixing box, a plurality of threaded holes are arranged at the top of each of the two fixing blocks, are threadedly connected with a plurality of screws, during installation, the fixing box is placed at a predetermined position, the threaded holes are aligned with the mounting surface holes, the screws are screwed in by using a simple tool, and the fixing box is tightly connected to the mounting surface by using the self-locking characteristics of the threads.

[0028] The utility model has the advantages of:

[0029] 1. In the utility model, through motor one and gear box body stable link, shell one and bolt close assembly, ensure that the overall structure is stable, can adapt to the complex working condition of forklift, reduce the hidden danger of failure, prolong the service life, improve the production cost, in the aspect of noise reduction, through the precision calculation and the unique gear structure design, and improve the gear precision, effectively reduce the noise when gear transmission, let forklift run more stable and quiet, both improve the work comfort of operator, also reduce the interference to the surrounding environment.

[0030] 2. In the utility model, through the multiple heat dissipation holes in the bottom of the fixed box, the heat generated by motor one can be effectively dissipated in time, the multiple heat dissipation holes increase the air flow area, so that hot air can be quickly discharged, cold air can smoothly enter, form good air convection, thereby quickly reduce the temperature of motor one, ensure that it stably runs in the suitable temperature environment, the micro motor two and the rotating fan connected thereof set up on the left side of the inner wall of the fixed box front and rear end provide the driving force for heat dissipation, micro motor two drives the rotating fan to rotate at high speed, accelerates the air flow speed, the strong wind generated by the rotating fan can quickly take away the hot air around motor one, enhances the heat dissipation effect. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 A perspective view of a new energy electric forklift gear box is provided for the utility model;

[0032] Figure 2 A front view of a new energy electric forklift gear box is provided for the utility model;

[0033] Figure 3 A partial structure schematic view of a new energy electric forklift gear box is provided for the utility model;

[0034] Figure 4 A split view of the heat dissipation mechanism of a new energy electric forklift gear box is provided for the utility model;

[0035] Figure 5 A partial structure display view of a new energy electric forklift gear box is provided for the utility model.

[0036] LEGEND:

[0037] 1, motor one; 2, heat dissipation mechanism; 201, fixed box; 202, heat dissipation hole; 203, partition; 204, horizontal plate; 205, micro motor two; 206, rotating fan; 3, gear box; 4, shell one; 5, bolt; 6, rotating shaft; 7, output gear; 8, bearing one; 9, oil seal; 10, outer gear; 11, output pinion; 12, a section of large tooth; 13, bearing two; 14, positioning pin; 15, mounting groove three; 16, fixed block; 17, screw one; 18, mounting hole; 19, mounting groove one; 20, heat sink; 21, screw two; 22, shell two. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0039] With reference to Figure 1 , Figure 3 and Figure 4 , an embodiment provided by the utility model: a new energy electric fork truck gear box, including motor one 1, the outer wall right side of motor one 1 is fixedly connected with gear box 3, the outer wall right side of gear box 3 is provided with shell one 4, the outer wall right side of shell one 4 is screw-connected with a plurality of bolts 5 around, the outer wall left side of shell one 4 is provided with shell two 22, the outer wall right side of rotating shaft 6 is rotatably connected with output gear 7, the outer wall left side of rotating shaft 6 is provided with bearing one 8, the outer wall left side bottom of bearing one 8 is provided with oil seal 9, the outer wall left end of rotating shaft 6 is provided with outer gear 10, the left bottom of shell one 4 is provided with output pinion 11, the outer wall right side of output pinion 11 is screw-connected with a section of large tooth 12, the outer wall left end of output pinion 11 is provided with bearing two 13, the outer wall top of motor one 1 is provided with heat dissipation mechanism 2;

[0040] Specifically, the motor 1 as a power source, by electromagnetic induction principle, the electrical energy is converted into mechanical energy, for the entire gear box provides initial power, the outer wall of the right side of the motor 1 is firmly connected with the gear box 3, this connection mode ensures smooth power transmission, the outer wall of the left side of the shell 4 is provided with the shell 22 which is closely matched with it, both of which jointly build a complete transmission space, meet the diverse power needs of the forklift, and in the middle of the outer wall of the left side of the shell 4, the rotating shaft 6 is fixed here, when the motor 1 starts, the power is transmitted to the rotating shaft 6 through the gear box 3, so that it starts to rotate, and then drives other components installed on it to operate, the outer wall of the right side of the rotating shaft 6 is rotatably connected with the output gear 7, the power is transmitted out through the meshing with other gears, the outer wall of the left side is sequentially provided with the bearing 8 and the oil seal 9, the bearing 8 ensures the stable rotation of the rotating shaft 6, and the oil seal 9 prevents the leakage of lubricating oil, the left end of the rotating shaft 6 is provided with an outside gear 10 which participates in different power transmission paths, an output pinion 11 is arranged at the left bottom of the shell 4, and a large tooth 12 is threadedly connected to the right side of the outer wall, the two cooperate with each other to realize a specific transmission ratio, the outer wall of the left end of the output pinion 11 is provided with a bearing 13 to provide support for its stable rotation, and all the components of the new energy electric forklift gear box work closely together to realize efficient transmission and reasonable distribution of power, so as to meet the running needs of the forklift in different working scenes.

[0041] With reference to Figure 2 and Figure 4 , the heat dissipation mechanism 2 includes a fixed box 201, the outer wall bottom of the fixed box 201 is fixedly connected to the outer wall top of the motor 1, a plurality of heat dissipation holes 202 are formed in the inner wall bottom of the fixed box 201, a partition plate 203 is arranged in the inner wall middle of the fixed box 201, two horizontal plates 204 are fixedly connected to the outer wall left side of the partition plate 203, two micro motors 205 are fixedly connected to the inner wall left side of the fixed box 201, and rotating fans 206 are fixedly connected to the output ends of the two micro motors 205;

[0042] Specifically, a plurality of heat dissipation holes 202 are formed in the bottom of the fixed box 201, hot air rises and is discharged through these holes under the action of thermal convection, realizing preliminary heat dissipation, the partition plate 203 in the middle of the box divides the space into two layers, which can not only block the rapid upward transmission of heat, but also guide the orderly flow of air flow, improving the heat dissipation efficiency, the partition plate 203 is connected with two horizontal plates 204 on the left side of the front and rear ends, which disrupts the flow path of hot air, increases the contact between air and the wall of the box and components, and promotes heat exchange, and the micro motor 205 on the left side of the inner wall of the fixed box 201, the output end of the micro motor 205 is connected with the rotating fan 206, the micro motor 205 is started, the rotating fan 206 rotates at high speed, the air flow is accelerated, and forced convection is formed, which enhances the heat dissipation capacity in combination with natural convection, ensuring that the motor 1 can stably operate at an appropriate temperature and guarantee the reliable operation of the whole equipment.

[0043] With reference to Figure 1 , Figure 2 and Figure 5 , the outer wall of the shell one 4 is fixedly connected with a plurality of positioning pins 14 on the left side of the upper and lower ends, and the outer wall of the plurality of positioning pins 14 is clamped with the shell two 22; the outer wall of the shell one 4 is provided with a plurality of mounting grooves three 15 on the right side, and the inner wall of the plurality of mounting grooves three 15 is threadedly connected with the bolt 5; the front and rear sides of the fixed box 201 are fixedly connected with two fixed blocks 16, and the top of the two fixed blocks 16 is threadedly connected with a plurality of screws one 17;

[0044] Specifically, the connection of the shell one 4 and the shell two 22 relies on the positioning pin 14, which is located on the left side of the upper and lower ends of the shell one 4 and is made of stainless steel. The positioning pin 14 is accurately positioned and clamped with the corresponding hole position of the shell two 22, so as to ensure accurate positioning and stable connection, prevent displacement during operation, and prevent displacement during operation. The mounting groove three 15 on the right side of the shell one 4 has a fine thread on the inner wall, which cooperates with the bolt 5 made of carbon steel. Rotating the bolt 5 generates axial force to firmly fix the related components. Multiple combinations enhance stability. The front and rear sides of the fixed box 201 are provided with two fixed blocks 16, which are made of metal and firmly connected. The top threaded hole is screwed with the stainless steel screw one 17. Multiple screws are fastened from different positions to prevent the fixed box 201 from shifting and shaking, and to ensure normal function and stable operation of the equipment.

[0045] With reference to Figure 1 , Figure 2 and Figure 4 , the inner wall of the fixed box 201 is provided with two mounting holes 18 on the left side of the front and rear ends, and the inner wall of the two mounting holes 18 is fixedly connected with the micro motor two 205. The inner wall of the fixed box 201 is provided with two mounting grooves one 19 on the left side of the front and rear ends, and the inner wall of the two mounting grooves one 19 is fixedly connected with the outer wall of the horizontal plate 204. The top of the fixed box 201 is provided with a heat dissipation plate 20, and the outer wall of the heat dissipation plate 20 is threadedly connected with a plurality of screws two 21 on the left and right sides. The bottom of the plurality of screws two 21 is threadedly connected with the top of the fixed box 201 on the left and right sides.

[0046] Specifically, the micro motor two 205 is stably fixed inside to provide a stable basis for its accurate driving of the rotating fan 206 and control of the air flow in the box. The two inner wall fine machining mounting grooves one 19 make the horizontal plate 204 firmly connected with the inner wall. The horizontal plate 204 can guide and disturb the air flow in the box, promote heat exchange, and the top of the fixed box 201 is provided with the heat dissipation plate 20 made of aluminum alloy. The threaded holes on the left and right outer walls of the heat dissipation plate 20 are threadedly connected with a plurality of screws two 21 made of stainless steel. The bottom of the screw two 21 is screwed into the corresponding threaded hole in the top of the fixed box 201 to firmly fix the heat dissipation plate 20, so as to ensure that the heat in the box is quickly dissipated to the surrounding environment, thereby ensuring the stable operation of the fixed box 201.

[0047] Working principle: through motor 1 converts electrical energy into mechanical energy, the power generated is transmitted to the closely connected gear box 3, gear box 3 play a supporting and protection of the internal gear transmission structure, the shell 4 is located in the right side of gear box 3, through a plurality of bolts 5 and other components are closely connected, ensure the stability of the whole structure, rotating shaft 6 is fixed in the left side of the middle of shell 1, when the motor 1 runs, the power is transmitted to the rotating shaft 6 through the transmission structure in the gear box 3, make it start to rotate, the output gear 7 on the right side of rotating shaft 6 synchronous rotation with rotating shaft 6, output gear 7 and other related gear meshing, further transmit power, on the left side of rotating shaft 6, bearing 1 8 provides stable support for rotating shaft 6, reduce the friction and vibration when rotating, ensure that rotating shaft 6 can run smoothly, oil seal 9 plays a sealing effect, prevent the leakage of lubricating oil, ensure the normal work of the internal lubricating system, the outside gear 10 is installed in the left end of rotating shaft 6, and is matched with other gears, the output pinion 11 is located in the left side of the bottom of shell 1, and is screwed with a large tooth 12, different transmission ratio change is realized, according to the actual work requirement of the forklift, the output pinion 11 rotates under the drive of rotating shaft 6, and then transmits power to other components connected therewith, finally drives the wheels of the forklift to perform work, bearing 2 13 is installed at the left end of the output pinion 11, which provides stable support for the output pinion 11, so that the output pinion 11 can rotate smoothly, thereby ensuring the stable operation of the whole gear box 3, realizing the power transmission and working function of the new energy electric forklift;

[0048] A plurality of heat dissipation holes 202 are formed in the inner wall of the fixed box 201, the heat dissipation holes 202 are important channels for heat dissipation, when the motor 1 works and generates heat, hot air will rise and enter the inside of the fixed box 201 through the heat dissipation holes 202, a partition plate 203 is arranged in the middle of the inner wall of the fixed box 201, the partition plate 203 divides the inside of the fixed box 201 into different areas, which helps to optimize the air flow path and make the heat transfer more orderly in the box, two transverse plates 204 are fixedly connected to the left side of the outer wall of the partition plate 203, the transverse plates 204 play the role of auxiliary support and guiding air flow, can block and divide the rising hot air to some extent, make the hot air more fully diffuse in the fixed box 201, increase the contact area with cold air, and improve the heat dissipation efficiency.

[0049] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A new energy electric fork truck gear box, comprising a motor one (1), characterized in that: The outer wall right side of the motor one (1) is fixedly connected with a gear box (3), the outer wall right side of the gear box (3) is provided with a shell one (4), the outer wall right side of the shell one (4) is uniformly threadedly connected with a plurality of bolts (5), the outer wall left side of the shell one (4) is provided with a shell two (22), the outer wall left side middle part of the shell one (4) is fixedly connected with a rotating shaft (6), the outer wall right end of the rotating shaft (6) is rotatably connected with an output gear (7), the outer wall left side of the rotating shaft (6) is provided with a bearing one (8), the outer wall left side of the bearing one (8) is provided with an oil seal (9), the outer wall left end of the rotating shaft (6) is provided with an outside gear (10), the left side bottom of the shell one (4) is provided with an output pinion (11), the outer wall right side of the output pinion (11) is threadedly connected with a section of big tooth (12), the outer wall left end of the output pinion (11) is provided with a bearing two (13), the outer wall top of the motor one (1) is provided with a heat dissipation mechanism (2).

2. A new energy electric fork truck gear box according to claim 1, characterized in that: The heat dissipation mechanism (2) includes a fixed box (201), the outer wall bottom of the fixed box (201) is fixedly connected to the outer wall top of the motor one (1), a plurality of heat dissipation holes (202) are formed in the inner wall bottom of the fixed box (201), a partition plate (203) is arranged on the inner wall middle part of the fixed box (201), two transverse plates (204) are fixedly connected to the outer wall left side front and rear end of the partition plate (203), two micro motor two (205) are fixedly connected to the inner wall left side front and rear end of the fixed box (201), and the output ends of the two micro motor two (205) are fixedly connected with rotating fans (206).

3. The new energy electric fork truck gear box according to claim 1, characterized in that: The outer wall of the plurality of positioning pins (14) is clamped with the shell two (22).

4. The new energy electric fork truck gear box according to claim 1, characterized in that: The outer wall right side of the shell one (4) is provided with a plurality of mounting grooves three (15), and the inner wall of the plurality of mounting grooves three (15) is threadedly connected with the bolts (5).

5. The new energy electric fork truck gear box according to claim 2, characterized in that: The front and rear sides of the fixed box (201) are fixedly connected with two fixed blocks (16), and the top of the two fixed blocks (16) is threadedly connected with a plurality of screws one (17).

6. The new energy electric fork truck gear box according to claim 2, characterized in that: Two mounting holes (18) are formed in the inner wall left side front and rear end of the fixed box (201), and the inner wall of the two mounting holes (18) is fixedly connected with the micro motor two (205).

7. The new energy electric fork truck gear box according to claim 2, characterized in that: Two mounting grooves one (19) are formed in the inner wall left side front and rear end of the fixed box (201), and the inner wall of the two mounting grooves one (19) is fixedly connected with the outer wall of the transverse plate (204).

8. The new energy electric fork truck gear box according to claim 2, characterized in that: The top of the fixed box (201) is provided with a heat dissipation plate (20), the outer wall left and right sides of the heat dissipation plate (20) are threadedly connected with a plurality of screws two (21), and the bottoms of the plurality of screws two (21) are threadedly connected with the top left and right sides of the fixed box (201).

Citation Information

Patent Citations

  • Low-noise gear box for electric forklift

    CN113236713A