New energy electric forklift gearbox

Abstract

The utility model discloses a new energy electric forklift gearbox, which relates to the technical field of new energy electric forklifts, and comprises a cylindrical box body, the surface of the cylindrical box body is provided with a spiral radiating pipe, a liquid inlet and a liquid outlet of the radiating pipe are both provided with connecting pipes, the surface of the cylindrical box body is provided with a guide assembly for limiting the radiating pipe, and the guide assembly is provided with a connecting pipe. An installation cylinder and an installation ring are arranged at the two ends of the cylindrical box body respectively, a plurality of first annular heat dissipation plates distributed in a stepped mode are arranged on one side of the installation cylinder through first circular plates, a fixing cylinder is arranged on the side, away from the installation cylinder, of the installation ring, and a plurality of second annular heat dissipation plates distributed in a stepped mode are arranged on one side of the fixing cylinder through second circular plates. A mounting assembly for mounting the cylindrical box body is arranged on one side of the bottom end of the cylindrical box body; the gearbox has the advantages that the heat dissipation area of the barrel-shaped box body is conveniently increased, heat dissipation and cooling can be conveniently carried out on all positions of the gearbox, the heat dissipation range is widened, and then the service life of the gearbox is prolonged.

Description

Technical Field

[0001] The utility model relates to a gearbox, in particular to a new energy electric forklift gearbox, and belongs to the technical field of new energy electric forklifts. Background Art

[0002] Electric forklifts are powered by batteries, driving the travel motor and hydraulic system motor, enabling travel and loading and unloading operations. Electric forklifts are DC-powered loading and unloading vehicles. The most significant advancement in new materials and processes is the application of transistor controllers, which have significantly improved the performance of electric forklifts. Electric forklifts also incorporate internal gearboxes, which control the forklift's torque output and speed.

[0003] Among them, the "new energy electric forklift gearbox" disclosed in application number "CN202121147764.5" "comprises a housing, wherein an input shaft and an output shaft are respectively connected between the inner walls of both sides of the housing through bearings, an active left cone disc is welded on the outer wall of the input shaft, an active right cone disc is sleeved on the outer wall of the input shaft, a driven right cone disc is welded on the outer wall of the output shaft, and a driven left cone disc is sleeved on the outer wall of the output shaft, a transmission steel belt is sleeved inside the active left cone disc and the active right cone disc, the active left cone disc and the active right cone disc are transmission-connected to the driven left cone disc and the driven right cone disc through the transmission steel belt, and a first wedge-shaped seat is connected to the inner wall of one side of the housing by bolts". In the utility model, by providing a heat dissipation plate, the contact area between the housing and the air is increased by utilizing the heat dissipation plate, thereby enabling the heat inside the gearbox to be dissipated in a timely manner, thereby achieving a good heat dissipation performance of the gearbox.

[0004] However, the above method still has the following defects: the heat inside the gearbox is promptly dissipated by using a heat sink, but the heat sink is set on one side of the gearbox and its heat dissipation area is limited, resulting in ineffective heat dissipation at other positions of the gearbox and limited heat dissipation effect. Utility Model Content

[0005] The purpose of the present utility model is to provide a new energy electric forklift gearbox to solve the problem proposed in the above background technology that the heat dissipation plate is set on one side of the gearbox, and its heat dissipation area is limited, resulting in no heat dissipation at other positions of the gearbox and limited heat dissipation effect.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a new energy electric forklift gearbox, comprising a cylindrical box body, the surface of the cylindrical box body is provided with a spiral heat dissipation pipe, the liquid inlet and liquid outlet of the heat dissipation pipe are both provided with connecting pipes, the surface of the cylindrical box body is provided with a guide assembly for limiting the heat dissipation pipe, and the two ends of the cylindrical box body are respectively provided with a mounting cylinder and a mounting ring, one side of the mounting cylinder is provided with a plurality of stepped annular heat dissipation plates through a circular plate, the side of the mounting ring facing away from the mounting cylinder is provided with a fixing cylinder, and one side of the fixing cylinder is provided with a plurality of stepped annular heat dissipation plates through a circular plate, and one side of the bottom end of the cylindrical box body is provided with a mounting assembly for mounting the cylindrical box body.

[0007] As an optimal technical solution of the present invention, the guide assembly includes three guide base plates, which are evenly fixed on the surface of the cylindrical box. A slide is slidingly provided on the top of the guide base plate, and the top of the slide is fixedly connected to the surface of the heat dissipation pipe. The surface of the mounting tube is also provided with a heat dissipation ring for assisting heat dissipation of the mounting tube surface, and the surface of the heat dissipation pipe is provided with a reinforcement rod for reinforcing the heat dissipation pipe.

[0008] As a preferred technical solution of the present invention, a support plate is provided on the side of the fixing tube facing the heat dissipation tube, and the support plate is fixedly connected to the bottom of the connecting tube.

[0009] As a preferred technical solution of the present invention, a mounting ring is provided on the top of the connecting pipe, a plurality of through holes are evenly opened on the surface of the mounting ring, and a sealing gasket is provided on the top of the mounting ring.

[0010] As an optimal technical solution of the present invention, the surface of the circular plate 1 is fixedly connected to the surface of the mounting cylinder by a plurality of bolts 1, and the surface of the circular plate 2 is fixedly connected to the surface of the fixing cylinder by a plurality of bolts 2.

[0011] As a preferred technical solution of the present invention, the surface of the mounting ring is fixedly connected to the surface of the cylindrical box body by a plurality of bolts three, and the cylindrical box body is provided with bolt holes matching the bolts three on one side facing the fixing cylinder.

[0012] As an optimal technical solution of the present invention, the mounting assembly includes an arc-shaped support, which is fixedly mounted on one side of the bottom end of the cylindrical box body. A mounting plate is provided at the bottom of the arc-shaped support, and a plurality of mounting holes for mounting the gearbox are opened on the surface of the mounting plate.

[0013] As a preferred technical solution of the present invention, a reinforcement plate for reinforcing the mounting plate is provided on one side of the arc-shaped support, and the bottom end of the reinforcement plate is fixedly connected to the top of the mounting plate.

[0014] Compared with related technologies, the new energy electric forklift gearbox provided by the present invention has the following beneficial effects:

[0015] 1. By providing a spiral heat dissipation pipe on the surface of the cylindrical box body, and cooperating with the provided connecting pipe, the coolant is filled into the connecting pipe and the heat dissipation pipe through the internal cooling equipment of the vehicle body, thereby greatly improving the heat dissipation effect of the cylindrical box body itself. By providing a plurality of stepped annular heat dissipation plates 1 and a plurality of stepped annular heat dissipation plates 2 on the surfaces of the circular plate 1 and the circular plate 2 respectively, it is convenient to dissipate heat and cool the two ends of the gearbox, thereby increasing the heat dissipation area of ​​the cylindrical box body itself, facilitating heat dissipation and cooling at various positions of the gearbox, improving the heat dissipation range, and thereby increasing the service life of the gearbox.

[0016] 2. The guide assembly is provided to facilitate the installation of the heat pipe and to facilitate the operation of the staff. At the same time, the detachable mounting ring is provided to facilitate the connection pipe and the heat pipe, and then to facilitate the disassembly and removal of the heat pipe, which is convenient for later maintenance and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the structural diagrams of the present utility model;

[0018] Figure 2 This is a schematic diagram of the explosion structure of the heat dissipation pipe of the utility model;

[0019] Figure 3 This is the second structural diagram of the present utility model;

[0020] Figure 4 For this utility model Figure 2 A schematic diagram of the enlarged structure at point A;

[0021] Figure 5 For this utility model Figure 2 A schematic diagram of the enlarged structure at point B;

[0022] Figure 6 This is a schematic diagram of the exploded structure of the installation assembly of the utility model.

[0023] In the figure: 1. Cylindrical box; 2. Heat dissipation pipe; 3. Connecting pipe; 4. Mounting cylinder; 5. Circular plate 1; 6. Annular heat dissipation plate 1; 7. Mounting ring; 8. Fixing cylinder; 9. Guide assembly; 901. Guide base plate; 902. Slide plate; 903. Support plate; 904. Mounting ring; 10. Circular plate 2; 11. Annular heat dissipation plate 2; 12. Bolt 1; 13. Bolt 2; 14. Bolt 3; 15. Mounting assembly; 1501. Arc support; 1502. Mounting plate; 1503. Mounting hole; 1504. Reinforcement plate; 16. Reinforcement rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1:

[0026] See also Figure 1-6 The utility model provides a new energy electric forklift gearbox, including a cylindrical box body 1, a spiral heat dissipation pipe 2 is provided on the surface of the cylindrical box body 1, and the liquid inlet and liquid outlet of the heat dissipation pipe 2 are both provided with a connecting pipe 3. By providing a spiral heat dissipation pipe 2 on the surface of the cylindrical box body 1 and cooperating with the provided connecting pipe 3, the cooling liquid is filled into the connecting pipe 3 and the spiral heat dissipation pipe 2 through the internal cooling equipment of the vehicle body, thereby greatly improving the heat dissipation effect of the cylindrical box body 1 itself. By setting it as a cylindrical structure, it is easier to dissipate heat. A guide component 9 for limiting the heat dissipation pipe 2 is provided on the surface of the cylindrical box body 1, which plays a guiding role in the installation of the heat dissipation pipe 2 and is convenient for installing and positioning the heat dissipation pipe 2. It has good convenience in use. The two ends of the cylindrical box body 1 are respectively provided with a mounting tube 4 and A mounting ring 7 is provided on one side of the mounting cylinder 4 with a plurality of stepped annular heat dissipation plates 6 through a circular plate 15, a fixed cylinder 8 is provided on the side of the mounting ring 7 facing away from the mounting cylinder 4, and a plurality of stepped annular heat dissipation plates 11 are provided on one side of the fixed cylinder 8 through a circular plate 2 10. By respectively providing a plurality of stepped annular heat dissipation plates 6 and a plurality of stepped annular heat dissipation plates 11 on the surfaces of the circular plate 1 5 and the circular plate 2 10, it is convenient to dissipate heat and cool the two ends of the gearbox 1, thereby increasing the heat dissipation area of ​​the cylindrical box 1 itself, facilitating heat dissipation and cooling at various positions of the gearbox, improving the heat dissipation range, and thereby increasing the service life of the gearbox. A mounting assembly 15 for mounting the cylindrical box 1 is provided on one side of the bottom end of the cylindrical box 1;

[0027] The guide assembly 9 includes three guide base plates 901, which are evenly fixedly installed on the surface of the cylindrical box 1. A slide plate 902 is slidably provided on the top of the guide base plate 901. The top of the slide plate 902 is fixedly connected to the surface of the heat pipe 2, which plays a role of limiting guidance during the early or later installation of the heat pipe 2, and is convenient for the staff to install and position it. A heat dissipation ring is also provided on the surface of the installation cylinder 4 for assisting heat dissipation on the surface of the installation cylinder 4, which is used to dissipate heat and cool the surface of the installation cylinder 4, thereby improving the heat dissipation effect. A reinforcing rod 16 is provided on the surface of the heat pipe 2 for reinforcing the heat pipe 2, which is convenient for reinforcing the long spiral heat pipe 2 and improving the stability.

[0028] A support plate 903 is provided on the side of the fixed cylinder 8 facing the heat dissipation pipe 2. The support plate 903 is fixedly connected to the bottom of the connecting pipe 3. After the fixed cylinder 8 is disassembled, the heat dissipation pipe 2 sleeved on the surface of the cylindrical box 1 can be directly removed by using the support plate 903, which is convenient for the operator to operate and has good convenience in use.

[0029] A mounting ring 904 is provided at the top of the connecting pipe 3, and a plurality of through holes are evenly opened on the surface of the mounting ring 904. A sealing gasket is provided on the top of the mounting ring 904 to facilitate connection with the cooling equipment in the vehicle body, so as to add coolant into the interior thereof to cool the gearbox.

[0030] Example 2:

[0031] The mounting assembly 15 includes an arc-shaped support 1501, which is fixedly mounted on one side of the bottom end of the cylindrical box 1. A mounting plate 1502 is provided at the bottom of the arc-shaped support 1501. A plurality of mounting holes 1503 for mounting the gearbox are provided on the surface of the mounting plate 1502, which facilitates the installation and fixation of the gearbox through the mounting holes 1503 at the mounting plate 1502.

[0032] A reinforcement plate 1504 for reinforcing the mounting plate 1502 is provided on one side of the arc-shaped support 1501. The bottom end of the reinforcement plate 1504 is fixedly connected to the top of the mounting plate 1502. By arranging the reinforcement plate 1504 at the arc-shaped support 1501 and the mounting plate 1502, the mounting plate 1502 can be reinforced, thereby improving the stability of the arc-shaped support 1501 during use.

[0033] The surface of the circular plate 1 5 is fixedly connected to the surface of the mounting cylinder 4 by a plurality of bolts 12, and the surface of the circular plate 2 10 is fixedly connected to the surface of the fixing cylinder 8 by a plurality of bolts 2 13. This facilitates the installation and fixation of the circular plate 1 5, the installation and placement of the internal components of the gearbox, the installation and fixation of the circular plate 2 10, and the removal of the heat dissipation pipe 2 by removing the circular plate 2 10 and the mounting ring 7, making it more convenient to use.

[0034] The surface of the mounting ring 7 is fixedly connected to the surface of the cylindrical box body 1 by a number of bolts 3 14. The cylindrical box body 1 is provided with bolt holes that match the bolts 3 14 on the side facing the fixing tube 8, which facilitates the installation and fixation of the mounting ring 7 and the subsequent disassembly of the heat pipe 2.

[0035] When in use, first, place the forklift gearbox in a suitable position, and install the cylindrical box in a suitable position through the provided mounting plate 1502 and the mounting hole 1503, and then use it. Then, through the cooling device inside the forklift, connect and install it with the connecting pipe 3 and the mounting ring 904, and add coolant to the inside of the heat dissipation pipe 2, thereby arranging the spiral heat dissipation pipe 2, thereby facilitating the heat dissipation and cooling effect of the gearbox, and secondly, by providing a plurality of stepped annular heat dissipation holes on the surface of the circular plate 1 5 and the circular plate 2 10. The heat plate 1 6 and several annular heat dissipation plates 2 11 distributed in a stepped manner facilitate heat dissipation and cooling of the two ends of the gearbox, thereby increasing the heat dissipation area of ​​the cylindrical box body 1 itself, increasing the heat dissipation range, and thus increasing the service life of the gearbox. When the heat dissipation pipe 2 needs to be removed, the mounting ring 7 is separated from the cylindrical box body 1 by removing the provided bolt 3 14, and then the heat dissipation pipe 2 sleeved on the cylindrical box body 1 is slid and removed, and the heat dissipation pipe 2 can be inspected and maintained. After the inspection is completed, it can be installed immediately to continue to dissipate heat and cool the gearbox.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new energy electric forklift gearbox, comprising a cylindrical box (1), characterized in that: The surface of the cylindrical case (1) is provided with a spiral heat dissipation tube (2), the liquid inlet and the liquid outlet of the heat dissipation tube (2) are both provided with a connecting tube (3), the surface of the cylindrical case (1) is provided with a guide assembly (9) for limiting the position of the heat dissipation tube (2), the two ends of the cylindrical case (1) are respectively provided with a mounting cylinder (4) and a mounting ring (7), one side of the mounting cylinder (4) is provided with a plurality of annular heat dissipation plates (6) distributed in a step-like manner through a circular plate (5), the side of the mounting ring (7) facing away from the mounting cylinder (4) is provided with a fixing cylinder (8), one side of the fixing cylinder (8) is provided with a plurality of annular heat dissipation plates (11) distributed in a step-like manner through a circular plate (10), and one side of the bottom end of the cylindrical case (1) is provided with a mounting assembly (15) for mounting the cylindrical case (1).

2. The new energy electric forklift gearbox according to claim 1 is characterized in that: The guide assembly (9) comprises three guide base plates (901), the guide base plates (901) being evenly fixedly mounted on the surface of the cylindrical box (1), a slide plate (902) being slidably mounted on the top of the guide base plates (901), the top of the slide plate (902) being fixedly connected to the surface of the heat dissipation pipe (2), a heat dissipation ring for assisting heat dissipation on the surface of the installation tube (4) being further mounted on the surface of the installation tube (4), and a reinforcement rod (16) for reinforcing the heat dissipation pipe (2) being mounted on the surface of the heat dissipation pipe (2).

3. The new energy electric forklift gearbox according to claim 1 is characterized in that: A support plate (903) is provided on the side of the fixed tube (8) facing the heat dissipation tube (2), and the support plate (903) is fixedly connected to the bottom of the connecting tube (3).

4. The new energy electric forklift gearbox according to claim 1 is characterized in that: A mounting ring (904) is provided at the top of the connecting pipe (3), a plurality of through holes are evenly opened on the surface of the mounting ring (904), and a sealing gasket is provided at the top of the mounting ring (904).

5. The new energy electric forklift gearbox according to claim 1 is characterized in that: The surface of the circular plate one (5) is fixedly connected to the surface of the mounting cylinder (4) via a plurality of bolts one (12), and the surface of the circular plate two (10) is fixedly connected to the surface of the fixing cylinder (8) via a plurality of bolts two (13).

6. The new energy electric forklift gearbox according to claim 1 is characterized in that: The surface of the mounting ring (7) is fixedly connected to the surface of the cylindrical box body (1) via a plurality of bolts three (14); a bolt hole matching the bolt three (14) is provided on a side of the cylindrical box body (1) facing the fixing cylinder (8).

7. The new energy electric forklift gearbox according to claim 1 is characterized in that: The mounting assembly (15) comprises an arc-shaped support (1501), wherein the arc-shaped support (1501) is fixedly mounted on one side of the bottom end of the cylindrical housing (1), and a mounting plate (1502) is provided at the bottom of the arc-shaped support (1501), and a plurality of mounting holes (1503) for mounting the gearbox are provided on the surface of the mounting plate (1502).

8. The new energy electric forklift gearbox according to claim 7 is characterized in that: A reinforcing plate (1504) for reinforcing the mounting plate (1502) is provided on one side of the arc-shaped support (1501), and the bottom end of the reinforcing plate (1504) is fixedly connected to the top of the mounting plate (1502).

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