An electric vehicle transmission housing forming device

Abstract

The utility model discloses an electric vehicle gearbox shell forming device belongs to gearbox shell production technical field, including support frame and the die structure of being arranged on support frame for the pouring electric vehicle gearbox shell, and the die structure includes two gearbox die shells of sliding installation in support frame top, two die cavities of being respectively set up in two gearbox die shell inside. The utility model discloses, two gearbox die shells after merging, the die cavity of intercommunication can form the pouring groove of electric vehicle gearbox shell, can be through the pouring pipe and pour into the metal liquid in the die cavity to carry out the pouring, and the cooling liquid in the cooling liquid tank can be pumped out after pouring is completed through the opening suction pump, makes the cooling liquid circulation between the flow guide shell and gearbox die shell, and the cooling liquid will absorb and take away the heat of gearbox die shell and gearbox shell in the process, promotes the quick forming of pouring gearbox shell, and through the circulation of cooling liquid can avoid the frequent addition or pouring out the cooling liquid in the die, and the use is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of gearbox housing production technology, specifically to a gearbox housing molding device for electric vehicles. Background Technology

[0002] The gearbox housing of an electric vehicle serves as the outer protective structure of the gearbox. During the operation of the electric vehicle, it effectively prevents external dust, moisture, and metal shavings from entering the gearbox, thus avoiding these impurities from affecting the normal operation of components such as the stator and rotor inside the gearbox and extending the service life of the gearbox.

[0003] When casting the gearbox housing of an electric vehicle, two combined shells can be used for casting. During the process, coolant can be poured into the central module to achieve rapid cooling of the gearbox housing. However, the temperature of the coolant will rise after use, and the coolant needs to be poured out and added frequently when casting again. The operation is cumbersome, and it is easy to spill the coolant onto the table or around the device, causing waste. Utility Model Content

[0004] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide an electric vehicle gearbox housing molding device, thereby solving the problem mentioned in the background art that the coolant temperature of the gearbox housing molding mold rises after use, requiring frequent emptying and refilling of coolant, which is quite cumbersome.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] An electric vehicle gearbox housing molding apparatus, comprising:

[0007] Support frame;

[0008] The mold structure, arranged on the support frame, is used for casting the gearbox housing of electric vehicles;

[0009] A cooling structure, arranged on the mold structure, is used to cool the mold structure and the cast gearbox housing;

[0010] A demolding structure is arranged on the mold structure and used in conjunction with the cooling structure to demold the finished gearbox housing.

[0011] Preferably, the mold structure includes:

[0012] Both gearbox mold housings are slidably mounted on top of the support frame;

[0013] Two mold cavities are respectively opened inside the two gearbox mold shells;

[0014] The central mold is arranged on the support frame and movably installed between the two gearbox mold housings;

[0015] The connecting frame is arranged on the support frame;

[0016] Hydraulic cylinder one is mounted on the connecting frame;

[0017] The cover plate is located on the telescopic end of hydraulic cylinder one;

[0018] The casting pipe is placed on the cover plate and connected to the corresponding mold cavity.

[0019] Preferably, the cooling structure includes:

[0020] A flow guide shell is arranged on the gearbox mold shell;

[0021] The flow channel is formed inside the flow guide shell;

[0022] The mounting bracket is located inside the support frame.

[0023] The coolant tank is mounted on a mounting bracket;

[0024] Both telescopic pipe one and telescopic pipe two are arranged on the flow guide shell and connected to the flow guide groove;

[0025] A suction pump is located at one end of the telescopic pipe, with the suction end of the pump located inside the coolant tank.

[0026] Preferably, the cooling structure further includes:

[0027] Several guide vanes are arranged alternately inside the guide shell, and the guide vanes are arranged on the outer surface of the gearbox mold shell;

[0028] The air-cooled assembly, mounted on a mounting bracket, is used to cool the coolant in the coolant tank.

[0029] Preferably, the air-cooled assembly includes:

[0030] The cooling gearbox is mounted on a mounting bracket.

[0031] Fan blades are arranged at the output end of the cooling gearbox;

[0032] A thermally conductive copper plate is arranged on the bottom inner wall of the coolant tank, above the fan blades, and is used to conduct the temperature of the coolant in the coolant tank.

[0033] Preferably, the demolding structure includes:

[0034] Four hydraulic cylinders are symmetrically arranged above the support frame, and the telescopic ends of the four hydraulic cylinders are respectively arranged on two guide shells.

[0035] The striking component, located inside the central mold, is used to strike the central mold to generate vibration and assist in demolding.

[0036] Preferably, the striking component includes:

[0037] The connecting shaft is rotatably mounted inside the central mold;

[0038] U-shaped frames are arranged on the support frame;

[0039] The reduction gearbox is located on one side of the U-shaped frame, and the output end of the reduction gearbox is located on the connecting shaft;

[0040] Several turntables are evenly and fixedly mounted on the connecting shaft;

[0041] The striking lever is rotated and mounted on the corresponding turntable.

[0042] Preferably, the striking component further includes:

[0043] The pivot is rotatably mounted inside the turntable and arranged on the striking rod;

[0044] A torsion spring, with one end placed on the inner wall of the turntable and the other end placed on the rotating shaft;

[0045] Several extrusion blocks are evenly arranged on the inner wall of the central mold.

[0046] The beneficial effects of this utility model are as follows:

[0047] In this invention, after the two gearbox mold shells are merged, the connected mold cavity can form a casting groove for the electric vehicle gearbox shell. Molten metal can be poured into the mold cavity through the casting pipe for casting. After casting, the coolant in the coolant tank can be extracted by turning on the suction pump, so that the coolant can circulate between the guide shell and the gearbox mold shell. During the process, the coolant will absorb and carry away the heat of the gearbox mold shell and the gearbox shell, promoting the rapid forming of the cast gearbox shell. Furthermore, by controlling the circulation of the coolant, the frequent addition or pouring of coolant in the mold can be avoided, making it more convenient to use.

[0048] In this invention, after the cast gearbox housing is formed, the knocking rod can be repeatedly knocked inside the central mold by opening the reduction gearbox, causing the central mold to vibrate. This helps to break the adhesion or slight bond between the gearbox housing and the mold, making the gearbox housing easier to detach. Then, the two gearbox mold housings can be opened by using the hydraulic cylinders on both sides to remove the gearbox housing. Attached Figure Description

[0049] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0050] Figure 1 A schematic diagram of the structure of an electric vehicle gearbox housing forming device provided in an embodiment of this utility model;

[0051] Figure 2 A schematic diagram of the gearbox mold shell structure of an electric vehicle gearbox shell forming device provided in this embodiment of the utility model;

[0052] Figure 3 A schematic diagram of the mounting bracket structure of an electric vehicle gearbox housing molding device provided in this embodiment of the present invention;

[0053] Figure 4 A schematic diagram of the exploded structure of the guide shell of an electric vehicle gearbox housing forming device provided in this embodiment of the present invention;

[0054] Figure 5 A schematic diagram of the turntable structure of an electric vehicle gearbox housing forming device provided in this embodiment of the present invention;

[0055] Figure 6 A schematic diagram of the central mold structure of an electric vehicle gearbox housing forming device provided in this embodiment of the present invention.

[0056] Explanation of reference numerals in the attached figures:

[0057] 1. Support frame; 2. Gearbox mold housing; 201. Mold cavity; 202. Central mold; 203. Connecting frame; 204. Hydraulic cylinder one; 205. Cover plate; 206. Casting pipe; 3. Guide shell; 301. Guide groove; 302. Mounting frame; 303. Coolant tank; 304. Telescopic pipe one; 305. Telescopic pipe two; 306. Suction pump; 307. Guide plate; 308. Cooling gearbox; 309. Fan blade; 310. Temperature-conducting copper plate; 4. Hydraulic cylinder two; 401. Connecting shaft; 402. U-shaped frame; 403. Reduction gearbox; 404. Turntable; 405. Striking rod; 406. Rotating shaft; 407. Torsion spring; 408. Extrusion block. Detailed Implementation

[0058] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0059] Example 1:

[0060] like Figures 1 to 6 As shown, this utility model provides an electric vehicle gearbox housing molding device, including: a support frame 1 and a mold structure arranged on the support frame 1 for casting the electric vehicle gearbox housing.

[0061] The mold structure includes two gearbox mold shells 2 slidably mounted on the support frame 1, two mold cavities 201 respectively opened inside the two gearbox mold shells 2, a central mold 202 arranged on the support frame 1 and movably mounted between the two gearbox mold shells 2, a connecting frame 203 arranged on the support frame 1, a hydraulic cylinder 204 arranged on the connecting frame 203, a cover plate 205 arranged on the telescopic end of the hydraulic cylinder 204, and a pouring pipe 206 arranged on the cover plate 205 and connected to the corresponding mold cavity 201. When the two gearbox mold shells 2 are closed, the central mold 202 will be sandwiched in the middle, and the connected mold cavity 201 forms the pouring groove of the gearbox shell. Then, the hydraulic cylinder 204 is opened to control the cover plate 205 to descend and cover the gearbox mold shell 2. The molten metal can be injected into the mold cavity 201 for pouring through the pouring pipe 206.

[0062] Example 2:

[0063] Based on Example 1, in order to enable the cast electric vehicle gearbox housing to be formed quickly, a cooling structure for cooling the mold structure and the cast gearbox housing is arranged on the mold structure.

[0064] The cooling structure includes a guide shell 3 arranged on the gearbox mold housing 2, a guide channel 301 opened inside the guide shell 3, a mounting bracket 302 located inside the support frame 1, a coolant tank 303 arranged on the mounting bracket 302, a telescopic pipe 304 and a telescopic pipe 305 arranged on the guide shell 3 and connected to the guide channel 301, and a suction pump 306 arranged at one end of the telescopic pipe 304. The suction end of the suction pump 306 is located inside the coolant tank 303. The suction pump 306 is turned on to draw out the coolant in the coolant tank 303 and transport it to the guide channel 301 through the telescopic pipe 304. Finally, it flows back to the coolant tank 303 from the telescopic pipe 305. As the coolant flows, it can carry away the heat during casting and quickly cool down the gearbox housing.

[0065] The cooling structure also includes several guide plates 307 arranged alternately inside the guide shell 3. The guide plates 307 are arranged on the outer surface of the gearbox mold shell 2 and on the mounting bracket 302 for cooling the coolant in the coolant tank 303. The arrangement of several guide plates 307 can increase the residence time of the coolant in the guide shell 3 and improve the heat exchange effect.

[0066] Specifically, the air-cooled assembly includes a cooling gearbox 308 arranged on the mounting bracket 302, a fan blade 309 arranged on the output end of the cooling gearbox 308, and a heat-conducting copper plate 310 arranged on the inner wall of the bottom side of the coolant tank 303 for conducting the temperature of the coolant in the coolant tank 303. The heat-conducting copper plate 310 is located above the fan blade 309. The temperature of the coolant in the coolant tank 303 can be conducted to the heat-conducting copper plate 310. By turning on the cooling gearbox 308, the fan blade 309 can blow air towards the heat-conducting copper plate 310 to cool down the coolant.

[0067] Example 3:

[0068] Based on Example 1, in order to facilitate quick demolding of the molded gearbox housing, a demolding structure for demolding the finished gearbox housing is arranged on the mold structure.

[0069] The demolding structure includes four hydraulic cylinders 4 symmetrically arranged above the support frame 1. The telescopic ends of the four hydraulic cylinders 4 are respectively arranged on two guide shells 3. The knocking component is arranged inside the central mold 202 to knock the central mold 202 to generate vibration to assist demolding. By controlling the extension and retraction of the hydraulic cylinders 4 on both sides, the gearbox mold shells 2 on both sides can be driven to open and close.

[0070] Specifically, the striking assembly includes a connecting shaft 401 rotatably mounted inside the central mold 202, a U-shaped frame 402 arranged on the support frame 1, a reduction gearbox 403 arranged on one side of the U-shaped frame 402, the output end of the reduction gearbox 403 being arranged on the connecting shaft 401, several turntables 404 being evenly fixedly mounted on the connecting shaft 401, and striking rods 405 rotatably mounted on the corresponding turntables 404. The reduction gearbox 403 is activated to drive the connecting shaft 401 to rotate slowly. The connecting shaft 401 can drive the multiple turntables 404 to rotate, and the turntables 404 in turn drive the striking rods 405 to move in a circular motion.

[0071] Specifically, the striking assembly also includes a rotating shaft 406 rotatably mounted inside the turntable 404 and arranged on the striking rod 405, a torsion spring 407 arranged on the inner wall of the turntable 404, one end of the torsion spring 407 being arranged on the rotating shaft 406, and several extrusion blocks 408 evenly arranged on the inner wall of the central mold 202. During the movement of the striking rod 405, it will be squeezed by the extrusion blocks 408 and flipped, causing the striking rod 405 to compress the torsion spring 407. When the striking rod 405 disengages from the extrusion block 408, the torsion spring 407 will drive the striking rod 405 to flip back to its original position and strike the inner wall of the central mold 202, causing it to vibrate so as to loosen the mold more quickly.

[0072] Working principle: During the processing of the electric vehicle gearbox housing, the extension and retraction of the two hydraulic cylinders 24 on both sides can drive the two gearbox mold housings 2 to open and close. When the two gearbox mold housings 2 close, they will clamp the central mold 202 in the middle, connecting the mold cavities 201 inside the two gearbox mold housings 2. The connected mold cavities 201 form the casting groove of the gearbox housing. Then, the hydraulic cylinder 204 is opened to control the cover plate 205 to descend and cover the gearbox mold housing 2. Molten metal can be injected into the mold cavity 201 through the casting pipe 206 for casting. After the casting is completed, the suction pump 306 can be turned on to extract the coolant in the coolant tank 303 and use it for... The coolant is delivered to the guide channel 301 via the telescopic pipe 304. The coolant passes through the staggered guide plates 307 and finally flows back to the coolant tank 303 via the telescopic pipe 305. The heat during casting is transferred to the coolant through the gearbox mold shell 2. The heat is carried away by the flow of the coolant, achieving rapid cooling of the gearbox shell casting and enabling the gearbox shell to be formed quickly. The temperature of the coolant in the coolant tank 303 can be conducted to the heat-conducting copper plate 310. By turning on the cooling gearbox 308, the fan blades 309 can be rotated to blow air towards the heat-conducting copper plate 310 for cooling, thereby cooling the coolant in the coolant tank 303.

[0073] During demolding, the reduction gearbox 403 is first activated to drive the connecting shaft 401 to rotate slowly. The connecting shaft 401 drives multiple turntables 404 to rotate, and the turntables 404 drive the striking rod 405 to rotate circumferentially via the rotating shaft 406. During the circumferential motion of the striking rod 405, it is squeezed by the extrusion block 408 and flips, which in turn causes the striking rod 405 to drive the rotating shaft 406 to rotate. When the rotating shaft 406 rotates, it compresses the torsion spring 407, causing the torsion spring 407 to compress and store energy. When the circumferentially moving striking rod 405 disengages from the extrusion block 408... Upon contact, the compressed torsion spring 407 drives the rotating shaft 406 to rotate and reset, which in turn drives the striking rod 405 to flip and reset and strike the inner wall of the central mold 202, causing it to vibrate so as to loosen the mold more quickly. Then, the cover plate 205 is controlled to rise, and the guide shells 3 on both sides and the gearbox mold shell 2 are unfolded by the hydraulic cylinder 2, so that the formed gearbox shell can be removed from the central mold 202. During the unfolding and movement of the gearbox mold shell 2, the telescopic tube 1 304 and the telescopic tube 2 305 will extend and retract to adapt.

[0074] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An electric vehicle gearbox housing forming device, characterized in that, include: Support frame (1); The mold structure is arranged on the support frame (1) and is used to cast the electric vehicle gearbox housing; A cooling structure, arranged on the mold structure, is used to cool the mold structure and the cast gearbox housing; A demolding structure is arranged on the mold structure and used in conjunction with the cooling structure to demold the finished gearbox housing.

2. The electric vehicle gearbox housing forming device as described in claim 1, characterized in that, The mold structure includes: Two gearbox mold housings (2) are slidably mounted on top of the support frame (1); Two mold cavities (201) are respectively opened inside the two gearbox mold shells (2); The central mold (202) is arranged on the support frame (1) and movably installed between the two gearbox mold housings (2); A connecting frame (203) is arranged on a support frame (1); Hydraulic cylinder 1 (204) is arranged on the connecting frame (203); The cover plate (205) is arranged on the telescopic end of the hydraulic cylinder (204); The casting pipe (206) is arranged on the cover plate (205) and connected to the corresponding mold cavity (201).

3. The electric vehicle gearbox housing molding apparatus as described in claim 1, characterized in that, The cooling structure includes: The flow guide shell (3) is arranged on the gearbox mold shell (2); The flow channel (301) is formed inside the flow shell (3); Mounting bracket (302) is located inside the support frame (1); A coolant tank (303) is mounted on a mounting bracket (302); Telescopic pipe one (304) and telescopic pipe two (305) are both arranged on the guide shell (3) and connected to the guide groove (301); A suction pump (306) is arranged at one end of a telescopic pipe (304), and the suction end of the suction pump (306) is located inside the coolant tank (303).

4. The electric vehicle gearbox housing forming apparatus as described in claim 1, characterized in that, The cooling structure also includes: Several guide plates (307) are arranged alternately inside the guide shell (3) and the guide plates (307) are arranged on the outer surface of the gearbox mold shell (2); The air-cooled component is mounted on the mounting bracket (302).

5. The electric vehicle gearbox housing molding apparatus as described in claim 4, characterized in that, The air-cooling component includes: A cooling gearbox (308) is mounted on a mounting bracket (302); Fan blades (309) are arranged on the output end of the cooling gearbox (308); A thermally conductive copper plate (310) is arranged on the bottom inner wall of the coolant tank (303), and the thermally conductive copper plate (310) is located above the fan blade (309).

6. The electric vehicle gearbox housing forming apparatus as described in claim 1, characterized in that, The demolding structure includes: Four hydraulic cylinders (4) are symmetrically arranged above the support frame (1), and the telescopic ends of the four hydraulic cylinders (4) are respectively arranged on two guide shells (3); A striking component is arranged inside the central mold (202) to strike the central mold (202) to generate vibration and assist in demolding.

7. The electric vehicle gearbox housing molding apparatus as described in claim 6, characterized in that, The striking component includes: The connecting shaft (401) is rotatably mounted inside the central mold (202); U-shaped frame (402) is arranged on support frame (1); A reduction gearbox (403) is arranged on one side of the U-shaped frame (402), and the output end of the reduction gearbox (403) is arranged on the connecting shaft (401); Several turntables (404) are evenly and fixedly mounted on the connecting shaft (401); The striking rod (405) is rotatably mounted on the corresponding turntable (404).

8. The electric vehicle gearbox housing molding apparatus as described in claim 6, characterized in that, The striking component also includes: A rotating shaft (406) is rotatably mounted inside a turntable (404) and arranged on a striking rod (405); A torsion spring (407) is arranged at one end on the inner wall of the turntable (404) and at the other end on the rotating shaft (406); Several extrusion blocks (408) are evenly arranged on the inner wall of the central mold (202).

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