Heat treatment device for spiral liquid cooling shell of pure electric middle driving motor

Abstract

The invention provides a pure electric middle driving motor spiral liquid cooling shell heat treatment device which comprises a heat furnace body, the heat furnace body is in a transverse cylindrical shape, an opening is formed in one end of the heat furnace body, a closing plate is arranged at the other end of the heat furnace body, two sliding grooves are formed in the closing plate, a supporting plate is slidably connected into each sliding groove, and the supporting plates are arranged in the sliding grooves. The direction of the sliding grooves is the connecting line of the circle center of the sealing plate and the edge of the inclined upper portion, and the two sliding grooves are perpendicular to each other. A to-be-treated motor shell is placed on the transverse frame, at the moment, the supporting plate and the center heating pipe are located in the motor shell, a driving motor is started, a driving disc rotates, a sliding column is driven by a sliding groove and a bending groove to drive the supporting plate to move towards the other end of the sliding groove, the supporting plate supports the motor shell from the interior, and the motor shell is suspended in the heating furnace; under the action of the electric heating wire and the central heating pipe in the heating furnace body, the heating temperature rise is more uniform, and the heat treatment effect is good.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy motor processing, and in particular to a heat treatment device for a spiral liquid-cooled housing of a pure electric mid-drive motor. Background Art

[0002] Because the motor is a core safety component of new energy vehicles, the motor housing needs to bear the weight of the entire motor and even factors such as collision. Its mechanical properties such as tensile strength, yield strength and elongation are higher than those of conventional castings.

[0003] Existing heat treatment devices are generally not convenient for heat treatment of motor shells. Motor shells are generally cylindrical, which not only occupies a relatively large space but is also difficult to fix in a hot furnace. During heat treatment, since the heating wire is arranged in the hot furnace shell, the temperature of the outer side of the motor shell is higher than the temperature of the inner side, which ultimately leads to the failure of the tissue to be completely transformed into the required tissue, making its performance after heat treatment unable to reach the target performance, and even its shape is prone to warping, resulting in poor heat treatment effect.

[0004] This case was created to solve the above problems. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] The object of the present invention is to provide a heat treatment device for a spiral liquid-cooled housing of a pure electric mid-drive motor to solve the problems raised in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a pure electric mid-drive motor spiral liquid-cooled shell heat treatment device, including a heat furnace body, the heat furnace body is in a horizontally placed cylindrical shape, one end of the heat furnace body is provided with an opening, the other end is provided with a closing plate, two sliding grooves are provided on the closing plate, both of the sliding grooves are slidably connected with a support plate, the direction of the sliding groove is the line connecting the center of the closing plate and the upper edge obliquely, the two sliding grooves are perpendicular to each other, the support plate is perpendicular to the closing plate, the support plate is arc-shaped, and the axis of the arc-shaped support plate coincides with the axis of the heat furnace body.

[0009] Preferably, a sliding column is provided at one end of the support plate, and the sliding column passes through a sliding groove. A driving disk is provided on a side of the closing plate facing away from the support plate, and a bending groove is provided on the driving disk, and the sliding column extends into the bending groove.

[0010] Preferably, fixed grooves parallel to the sliding groove are provided on both sides of the sliding groove, and the cross-section of the fixed groove is "T"-shaped. Fixed columns are provided on both sides of the sliding column, and the fixed columns are located in the fixed grooves, and the cross-section of the fixed columns is "T"-shaped.

[0011] Preferably, a convex piece is provided on the edge of the driving disk, a circular groove is provided on the edge of the closing plate, and the convex piece is slidably connected to the circular groove.

[0012] Preferably, a motor is provided outside the heat furnace body, and an output end of the motor is connected to a driving disk.

[0013] Preferably, a transverse frame is provided in the heat furnace body, the transverse frame is horizontal, and is provided with transverse lines parallel to the axis of the heat furnace body.

[0014] Preferably, a heating layer is provided inside the heat furnace body, and an electric heating wire is provided inside the heating layer. The electric heating wire is arranged parallel to the axis of the heat furnace body. A central heating tube is provided at one end of the heat furnace body close to the closing plate. The central heating tube is arranged horizontally and is U-shaped bent toward the center of the heat furnace body.

[0015] Preferably, a rotating wheel is provided on the arc surface of the support plate close to the inner wall of the heat furnace body, and the axis of the rotating wheel is parallel to the axis of the heat furnace body.

[0016] Preferably, the sliding column is rotatably connected to the support plate, and the fixed column is rotatably connected to the support plate.

[0017] (III) Beneficial effects

[0018] After adopting the above technical scheme, the present invention has the following advantages compared with the prior art: the present invention is a pure electric mid-drive motor spiral liquid-cooled shell heat treatment device, the motor shell to be treated is placed on a horizontal frame, at this time the support plate and the central heating tube are located in the motor shell, the drive motor is started, the drive disk rotates, and the sliding column is acted upon by the sliding groove and the bending groove, driving the support plate to move to the other end of the sliding groove, so that the support plate supports the motor shell from the inside, so that the motor shell is suspended in the hot furnace, and is acted upon by the electric heating wire and the central heating tube in the hot furnace body, so that the heating and temperature rise are more uniform and the heat treatment effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the present invention;

[0020] Figure 2 This is a schematic diagram after removing the hot furnace body;

[0021] Figure 3 It is a schematic diagram of the splitting and matching of the closing plate and the supporting plate;

[0022] In the figure: 1 hot furnace body, 2 closing plate, 3 supporting plate, 31 sliding column, 32 fixed column, 33 rotating wheel, 4 sliding groove, 5 driving disk, 51 bending groove, 52 convex piece, 6 fixed groove, 7 circular groove, 8 driving motor, 9 horizontal frame, 91 horizontal stripe, 10 central heating tube. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below through the accompanying drawings and examples.

[0024] The embodiment of the present invention provides a heat treatment device for a spiral liquid-cooled housing of a pure electric mid-drive motor, such as Figure 1-3 As shown, it includes a heat furnace body 1, which is in a horizontal cylindrical shape. One end of the heat furnace body 1 is provided with an opening, and the other end is provided with a closing plate 2. Two sliding grooves 4 are opened on the closing plate 2, and a supporting plate 3 is provided in each of the two sliding grooves 4. The direction of the sliding groove 4 is the line connecting the center of the closing plate 2 and the upper edge obliquely. The two sliding grooves 4 are perpendicular to each other, and the supporting plate 3 is perpendicular to the closing plate 2. The supporting plate 3 is arc-shaped, and the axis of the arc-shaped supporting plate 3 coincides with the axis of the heat furnace body 1. When the supporting plate 3 moves along the sliding groove 4, the arc surface of the supporting plate 3 presses against the inner wall of the motor shell, props up the motor shell, and makes the motor shell suspended, so that the temperature can be raised more evenly during heating.

[0025] Reference Figure 2-3 A sliding post 31 is provided at one end of the support plate 3, and the sliding post 31 passes through the sliding groove 4. A driving disk 5 is provided on the side of the closing plate 2 facing away from the support plate 3. A curved groove 51 is provided on the driving disk 5, and the sliding post 31 extends into the curved groove 51. The sliding post 31 is rotatably connected with the support plate 3. When the support plate 3 moves along the sliding groove 4, due to the weight of the support plate 3 itself, the friction between the sliding post 31 and the sliding groove 4 and the curved groove 51 is relatively large, which makes it difficult for the support plate 3 to move under the drive of the driving disk 5. However, the sliding post 31 itself can rotate, and the sliding post 31 rolls with the side walls of the sliding groove 4 and the curved groove 51, which greatly reduces the friction, so that the driving disk 5 drives the support plate 3 to move.

[0026] Reference Figure 2-3 , fixed grooves 6 parallel to the sliding grooves 4 are provided on both sides of the sliding grooves 4, and the cross-section of the fixed grooves 6 is "T"-shaped. Fixed columns 32 are provided on both sides of the sliding column 31, and the fixed columns 32 are rotatably connected to the support plate 3. The rotatable connection is also used to reduce friction. The fixed columns 32 are located in the fixed grooves 6, and the cross-section of the fixed columns 32 is "T"-shaped. The cross-sections of the fixed columns 32 and the fixed grooves 6 are both "T"-shaped, which are used to bear most of the gravity of the support plate 3 to prevent the sliding column 31 from deforming and breaking.

[0027] Reference Figure 2-3 A protrusion 52 is provided on the edge of the driving disk 5, and a circular groove 7 is opened on the edge of the closing plate 2. The protrusion 52 is slidably connected to the circular groove 7. The stability of the driving disk 5 is ensured by the cooperation of the protrusion 52 and the circular groove 7. A driving motor 8 is provided outside the hot furnace body 1, and the output end of the driving motor 8 is connected to the driving disk 5.

[0028] Reference Figure 1A transverse frame 9 is provided in the heat furnace body 1 . The transverse frame 9 is horizontal and has transverse lines 91 parallel to the axis of the heat furnace body 1 . The transverse lines 91 prevent the motor housing from sliding on the transverse frame 9 .

[0029] Reference Figure 1 A heating layer is provided inside the hot furnace body 1, and an electric heating wire is provided inside the heating layer. The electric heating wire is arranged parallel to the axis of the hot furnace body 1. A central heating tube 10 is provided at one end of the hot furnace body 1 close to the closing plate 2. The central heating tube 10 is arranged horizontally and is U-shaped bent toward the center of the hot furnace body 1. When the motor shell is suspended in the air by the support plate 3, the outer side of the motor shell is heated by the electric heating wire in the hot furnace body 1, and the inner side of the motor shell is heated by the central heating tube 10, so that the temperature rise is more uniform.

[0030] Reference Figure 1-3 A rotating wheel 33 is provided on the arc surface of the support plate 3 close to the inner wall of the hot furnace body 1, and the axis of the rotating wheel 33 is parallel to the axis of the hot furnace body 1, so that when the support plate 3 supports the motor housing, the rotating wheel 33 is rollingly connected with the inner wall of the motor housing to prevent the support plate 3 from scratching the inner wall of the motor housing.

[0031] The present invention discloses a heat treatment device for a spiral liquid-cooled shell of a pure electric mid-drive motor. The motor shell to be treated is placed on a horizontal frame 9. At this time, the support plate 3 and the central heating tube 10 are located in the motor shell. The drive motor 8 is started, the drive disk 5 rotates, and the sliding column 31 is acted upon by the sliding groove 4 and the bending groove 51, driving the support plate 3 to move toward the other end of the sliding groove 4. The support plate 3 thus supports the motor shell from the inside, so that the motor shell is suspended in the hot furnace and is acted upon by the electric heating wire in the hot furnace body 1 and the central heating tube 10. The heating and temperature rise is more uniform and the heat treatment effect is good.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat treatment device for a spiral liquid-cooled housing of a pure electric mid-drive motor, comprising a heat furnace body (1), characterized in that: The heat furnace body (1) is in the shape of a horizontal cylinder. An opening is provided at one end of the heat furnace body (1) and a closing plate (2) is provided at the other end. Two sliding grooves (4) are provided on the closing plate (2). A supporting plate (3) is provided in each of the two sliding grooves (4). The direction of the sliding groove (4) is a line connecting the center of the closing plate (2) and the upper edge. The two sliding grooves (4) are perpendicular to each other. The supporting plate (3) is perpendicular to the closing plate (2). The supporting plate (3) is arc-shaped. The axis of the arc-shaped supporting plate (3) coincides with the axis of the heat furnace body (1).

2. A heat treatment device for a spiral liquid-cooled housing of a pure electric mid-drive motor according to claim 1, characterized in that: A sliding column (31) is provided at one end of the support plate (3), and the sliding column (31) passes through the sliding groove (4). A driving disk (5) is provided on a side of the closing plate (2) facing away from the support plate (3), and a curved groove (51) is provided on the driving disk (5), and the sliding column (31) extends into the curved groove (51).

3. The heat treatment device for the spiral liquid-cooled housing of a pure electric mid-drive motor according to claim 2 is characterized in that: Fixed grooves (6) parallel to the sliding groove (4) are provided on both sides of the sliding groove (4), and the cross section of the fixed groove (6) is in a "T" shape. Fixed columns (32) are provided on both sides of the sliding column (31), and the fixed columns (32) are located in the fixed groove (6), and the cross section of the fixed column (32) is in a "T" shape.

4. The heat treatment device for the spiral liquid-cooled housing of a pure electric mid-drive motor according to claim 2 is characterized in that: The edge of the driving disk (5) is provided with a protruding piece (52), the edge of the closing plate (2) is provided with a circular groove (7), and the protruding piece (52) is slidably connected to the circular groove (7).

5. The heat treatment device for the spiral liquid-cooled housing of a pure electric mid-drive motor according to claim 2 is characterized in that: A driving motor (8) is provided outside the heating furnace body (1), and an output end of the driving motor (8) is connected to a driving disk (5).

6. The heat treatment device for the spiral liquid-cooled housing of a pure electric mid-drive motor according to claim 1 is characterized in that: A transverse frame (9) is arranged inside the heat furnace body (1); the transverse frame (9) is horizontal and has transverse lines (91) arranged thereon which are parallel to the axis of the heat furnace body (1).

7. The heat treatment device for the spiral liquid-cooled housing of a pure electric mid-drive motor according to claim 1 is characterized in that: A heating layer is provided inside the heat furnace body (1), and an electric heating wire is provided inside the heating layer. The electric heating wire is arranged parallel to the axis of the heat furnace body (1). A central heating tube (10) is provided at one end of the heat furnace body (1) close to the closing plate (2). The central heating tube (10) is arranged horizontally and is U-shaped bent toward the center of the heat furnace body (1).

8. The heat treatment device for the spiral liquid-cooled housing of a pure electric mid-drive motor according to claim 1 is characterized in that: A rotating wheel (33) is provided on the arc-shaped surface of the support plate (3) close to the inner wall of the hot furnace body (1), and the axis of the rotating wheel (33) is parallel to the axis of the hot furnace body (1).

9. The heat treatment device for the spiral liquid-cooled housing of a pure electric mid-drive motor according to claim 3 is characterized in that: The sliding column (31) is rotatably connected to the support plate (3), and the fixed column (32) is rotatably connected to the support plate (3).

Images