New energy vehicle differential with connection structure and preparation method thereof

Abstract

The present invention discloses a method for preparing a differential for a new energy vehicle with a connection structure. The method comprises the following steps: step 1, performing a hoisting test; step 2, leveling the angle; step 3, fixing the lower housing; step 4, installing an infrared signal output terminal and an infrared signal input terminal; step 5, adjusting the tooth alignment of the upper housing and the lower housing; and step 6, hoisting. The present invention relates to the field of differential processing technology. The method for preparing a differential for a new energy vehicle with a connection structure determines whether the teeth of the differential are aligned or engaged during assembly by using the value of a digital dynamometer and the drop distance, thereby avoiding damage to the teeth under the pressure of the overall weight in the case of aligned teeth, achieving efficient assembly of the differential, and performing pre-positioning to minimize the occurrence of misaligned teeth.

Description

Technical Field

[0001] The present invention relates to the technical field of differential processing, and in particular to a new energy vehicle differential with a connection structure and a preparation method thereof. Background Art

[0002] The differential assembly is heavy and weighs heavily on the gear side, making manual assembly and disassembly labor-intensive. Furthermore, tapered bearings are used at both ends of the differential assembly, and the outer ring must be secured during assembly and disassembly.

[0003] According to the differential assembly assembly and disassembly tooling and method described in patent number CN113979287A, when used, it includes a support, a hoisting balancing mechanism, a locking anti-slip mechanism, etc. However, it is impossible to align the teeth during assembly. When hoisting and installing it up and down, it is easy to cause misalignment of teeth due to hoisting deviation, resulting in wear and reducing the service life. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a new energy vehicle differential with a connection structure and a preparation method thereof, which solves the above-mentioned problems.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A new energy vehicle differential with a connection structure: comprising a welded upper shell and a lower shell, wherein the surface of the lower shell is provided with a gear set;

[0006] The preparation method of the new energy vehicle differential comprises the following steps:

[0007] Step 1: Conduct hoisting test;

[0008] Step 2: Level the angle;

[0009] Step 3: Fix the lower shell;

[0010] Step 4: Install the infrared signal output terminal and the infrared signal input terminal;

[0011] Step 5: Adjust the gear alignment between the upper and lower housings.

[0012] Step 6: Hoisting.

[0013] The present invention also discloses a method for preparing a new energy vehicle differential with a connection structure, which comprises the following steps:

[0014] Step 1: Perform a hoisting test by assembling the equipment to simulate the situation where the upper and lower shells are misaligned during hoisting. Record the data change threshold of the digital dynamometer and set it as Z.

[0015] Step 2: Assemble the equipment's electric hoist, step-by-step adjustment electric hoist, and pneumatic clamping plate to hoist the upper housing, and level it by adjusting the angle of the step-by-step adjustment electric hoist.

[0016] Step 3: Install the lower shell into the limiting groove in the limiting seat, and then start the limiting cylinder to extend it to abut against the inner cavity of the lower shell and abut against the inner surface of the lower shell for fixation;

[0017] Step 4: Measure the tooth pitch of the upper shell and the lower shell. Before assembly, install the infrared signal output terminal on the upper shell and install the infrared signal input terminal on the lower shell according to the state of the tooth alignment with the upper shell.

[0018] Step 5: Adjust the angle of the limit seat to drive the lower shell to rotate, ensuring that the output signal of the infrared signal output end can be continuously received by the infrared signal input end, ensuring the gear alignment of the upper shell and the lower shell;

[0019] Step 6. Observe the lifting data of the digital dynamometer during the lifting process. When the data change of the digital dynamometer is less than Z when the teeth are engaged, lower the upper shell to its installation position. If the data change is greater than Z, immediately lift the upper shell, rotate the limit seat to adjust the angle of the lower shell, and lower it again until the data change of the digital dynamometer is less than Z when the teeth are engaged.

[0020] As a further solution of the present invention: in step 1, the hoisting experiment is carried out by assembling equipment to simulate the situation where the upper shell and the lower shell are misaligned during hoisting.

[0021] As a further solution of the present invention: during the leveling in step 2, the leveling is performed by adjusting the angle of the graded electric hoist.

[0022] As a further solution of the present invention: when fixing in step three, the lower shell is installed in the limiting groove in the limiting seat, and then the limiting cylinder is started to extend it to abut against the inner cavity of the lower shell and the inner surface of the lower shell.

[0023] As a further solution of the present invention: the infrared signal output end and the infrared signal input end are respectively fixed to the surface of the upper shell and the lower shell through magnetic blocks.

[0024] As a further solution of the present invention: in step 4, when installing the infrared signal output terminal and the infrared signal input terminal, it is ensured that the output signal of the infrared signal output terminal can be continuously received by the infrared signal input terminal.

[0025] As a further solution of the present invention: during hoisting in step six, if the data change of the digital display dynamometer when the teeth are engaged is less than Z, the upper shell is lowered to its installation position; if the data change is greater than Z, the upper shell should be immediately lifted, the limit seat is rotated to adjust the angle of the lower shell, and it is lowered again until the data change of the digital display dynamometer when the teeth are engaged is less than Z, and the assembly is completed.

[0026] The upper and lower ends of the support frame are fixedly connected to each other with a lifting mechanism, and the lower end of the support frame is fixedly connected to the lifting mechanism, and the support frame is fixedly connected to the lifting mechanism. The top of described limit seat is fixedly connected with the limit cylinder, and one end of described limit cylinder piston rod is fixedly connected with the top plate, and one end of described limit cylinder piston rod is fixedly connected with the top plate, and one end of described limit cylinder piston rod is fixedly connected with the top plate, and one end of described limit cylinder piston rod is fixedly connected with the top plate, and one end of described limit cylinder piston rod is fixedly connected with the

[0027] Compared with the prior art, the present invention has the following beneficial effects: whether the teeth of the differential are in contact with each other or meshing during the assembly process is judged by the value of the digital dynamometer and the drop distance, thereby avoiding damage to the teeth under the pressure of the overall weight when the teeth are in contact with each other, achieving efficient assembly of the differential, and performing positioning in advance to minimize the occurrence of misaligned teeth. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Schematic diagram of the structure of the differential of the present invention;

[0029] Figure 2 It is a structural schematic diagram of the assembly equipment of the present invention;

[0030] Figure 3 This is a schematic diagram of the installation of the infrared signal output terminal and the infrared signal input terminal of the present invention;

[0031] Figure 4 For the present invention Figure 2 A partial enlarged view of point A in the middle.

[0032] In the figure: 1. Upper shell; 2. Lower shell; 3. Gear group; 4. Upper power board; 5. Electric hoist; 6. Digital dynamometer; 7. Pull rope; 8. Step-adjustable electric hoist; 9. Lifting cylinder; 10. Lifting rod; 11. Connecting plate; 12. Guide rod; 13. Pneumatic clamping plate; 14. Infrared signal output terminal; 15. Infrared signal input terminal; 16. Magnetic block; 17. Lower base; 18. Limit seat; 19. Limit slot; 20. Limit cylinder; 21. Top plate. DETAILED DESCRIPTION

[0033] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0034] See also Figure 1-4 , the present invention provides a technical solution: a new energy vehicle differential with a connection structure: comprising a welded upper shell 1 and a lower shell 2, wherein a gear set 3 is sleeved on the surface of the lower shell 2;

[0035] The preparation method of the new energy vehicle differential comprises the following steps:

[0036] Step 1: Conduct hoisting test;

[0037] Step 2: Level the angle;

[0038] Step 3: Fix the lower housing 2;

[0039] Step 4: Install the infrared signal output terminal 14 and the infrared signal input terminal 15;

[0040] Step 5: Adjust the tooth alignment between the upper shell 1 and the lower shell 2;

[0041] Step 6: Hoisting.

[0042] The present invention also discloses a method for preparing a new energy vehicle differential with a connection structure, which comprises the following steps:

[0043] Step 1: Perform a hoisting test by assembling the equipment to simulate the situation where the upper shell 1 and the lower shell 2 are misaligned during hoisting. Record the data change threshold of the digital display dynamometer 6 and set it as Z.

[0044] Step 2: Hoist the upper housing 1 by assembling the electric hoist 5, the graded adjustment electric hoist 8 and the pneumatic clamping plate 13 of the equipment, and level it by adjusting the angle of the graded adjustment electric hoist 8;

[0045] Step 3: Install the lower shell 2 in the limiting groove 19 in the limiting seat 18, and then start the limiting cylinder 20 to extend it and abut against the inner cavity of the lower shell 2, and abut against the inner surface of the lower shell 2 to fix it;

[0046] Step 4: Measure the tooth pitch of the upper shell 1 and the lower shell 2. Before assembly, install the infrared signal output terminal 14 on the upper shell 1 and install the infrared signal input terminal 15 on the lower shell 2 according to the state of the tooth alignment with the upper shell 1;

[0047] Step 5: Adjust the angle of the limit seat 18 to drive the lower housing 2 to rotate, ensuring that the output signal of the infrared signal output terminal 14 can be continuously received by the infrared signal input terminal 15, and ensuring the tooth alignment state of the upper housing 1 and the lower housing 2;

[0048] Step 6. Observe the lifting weight data of the digital dynamometer 6 during the lifting process. When the data change of the digital dynamometer 6 is less than Z when the teeth are engaged, lower the upper shell 1 to its installation position; if the data change is greater than Z, immediately lift the upper shell 1, rotate the limit seat 18 to adjust the angle of the lower shell 2, and lower it again until the data change of the digital dynamometer 6 is less than Z when the teeth are engaged.

[0049] During the hoisting experiment in step 1, hoisting is performed through assembly equipment to simulate the situation where the upper shell 1 and the lower shell 2 are misaligned during hoisting.

[0050] When leveling is performed in step 2, leveling is performed by adjusting the angle of the graded adjustment electric hoist 8 .

[0051] During the fixing in step 3, the lower shell 2 is installed in the limiting groove 19 in the limiting seat 18, and then the limiting cylinder 20 is started to extend and abut against the inner cavity of the lower shell 2 and the inner surface of the lower shell 2.

[0052] The infrared signal output terminal 14 and the infrared signal input terminal 15 are fixed to the surfaces of the upper shell 1 and the lower shell 2 respectively through magnetic blocks 16 .

[0053] In step 4, when installing the infrared signal output terminal 14 and the infrared signal input terminal 15 , ensure that the output signal of the infrared signal output terminal 14 can be continuously received by the infrared signal input terminal 15 .

[0054] During the hoisting in step 6, if the data change of the digital display dynamometer 6 is less than Z when the teeth are engaged, the upper shell 1 is lowered to its installation position; if the data change is greater than Z, the upper shell 1 should be immediately lifted, the limit seat 18 is rotated to adjust the angle of the lower shell 2, and then lowered again until the data change of the digital display dynamometer 6 is less than Z when the teeth are engaged, and the assembly is completed.

[0055] The assembly equipment includes a lower base 17 and an upper power plate 4. The upper power plate 4 is driven by a driving mechanism to move left and right on the track. After clamping the workpiece, it moves to the top of the lower base 17. The top of the upper power plate 4 is fixedly connected to an electric hoist 5. The transmission end of the electric hoist 5 is fixedly connected to a pull rope 7. The surface of the pull rope 7 is provided with a digital display tension gauge 6. The bottom end of the pull rope 7 is fixedly connected to a pneumatic clamping disk 13. The pneumatic clamping disk 13 is used to clamp the upper shell 1. The pneumatic clamping disk 13 is driven up and down by the electric hoist 5. The tension value is displayed by the digital display tension gauge 6. The bottom of the pull rope 7 is forked into two The upper power plate 4 is fixedly connected to the surface of the upper power plate 4, and the middle part of the two bifurcated sections is provided with a graded adjustment electric hoist 8, which is used to fine-tune the length of the bifurcated section to ensure that the pneumatic clamping disc 13 is in a horizontal state. The surface of the upper power plate 4 is fixedly connected to the lifting cylinder 9, and the bottom end of the piston rod of the lifting cylinder 9 is fixedly connected to the lifting rod 10, and the bottom of the lifting rod 10 is fixedly connected to the connecting plate 11, and the bottom of the connecting plate 11 is fixedly connected to the guide rod 12. The surface of the guide rod 12 is slidably connected to the inner cavity of the pneumatic clamping disc 13, and the height position of the guide rod 12 is adjusted by the lifting cylinder 9, and the pneumatic clamping disc is adjusted by the guide rod 12 13 is limited so that it can only move vertically up and down, the inner cavity of the lower base 17 is rotatably connected to the limit seat 18, the limit seat 18 is driven to rotate by the driving mechanism, and the inner cavity of the limit seat 18 is provided with a limit groove 19 for limiting the lower shell 2, the top of the limit seat 18 is fixedly connected to the limit cylinder 20, one end of the piston rod of the limit cylinder 20 is fixedly connected to the top plate 21, one end of the top plate 21 is in contact with the inner cavity of the lower shell 2, the lower shell 2 is placed above the limit seat 18, and is clamped with the bottom of the lower shell 2 through the limit groove 19, and the top plate 21 is driven to extend through the limit cylinder 20. It abuts against the bottom of the lower shell 2, supports the lower shell 2, fixes the lower shell 2, drives the lower shell 2 to rotate by rotating the limit seat 18, and adjusts the angle to adapt to the gear set 3. The surfaces of the upper shell 1 and the lower shell 2 are respectively connected to the infrared signal output terminal 14 and the infrared signal input terminal 15 through the magnetic block 16. The value and the descending distance of the digital dynamometer 6 are used to judge whether the teeth of the differential are against the teeth or engaged during the assembly process, thereby avoiding damage to the teeth under the pressure of the overall weight when the teeth are against the teeth, realizing efficient assembly of the differential, and positioning in advance to minimize the occurrence of misaligned teeth.

[0056] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A method for preparing a new energy vehicle differential with a connection structure, characterized in that: The following steps are involved: Step 1: Perform a hoisting test by assembling the equipment and recording the data change threshold of the digital dynamometer (6), which is set to Z; Step 2: The upper housing (1) is hoisted and leveled by assembling the electric hoist (5), the graded adjustment electric hoist (8) and the pneumatic clamping plate (13) of the equipment; Step 3: Fix the lower shell (2); Step 4: Measure the tooth pitch of the upper shell (1) and the lower shell (2), install the infrared signal output terminal (14) on the upper shell (1) before assembly, and install the infrared signal input terminal (15) on the lower shell (2) according to the state of the tooth alignment with the upper shell (1); Step 5: By adjusting the angle of the limit seat (18), the lower shell (2) is driven to rotate to ensure that the upper shell (1) and the lower shell (2) are in a tooth-aligned state; Step 6: During the lifting process, observe the lifting weight data of the digital dynamometer (6) and carry out the lifting.

2. The method for preparing a new energy vehicle differential with a connection structure according to claim 1, characterized in that: During the hoisting experiment in step 1, hoisting is performed by assembling equipment to simulate the situation where the upper shell (1) and the lower shell (2) are misaligned during hoisting.

3. The method for preparing a new energy vehicle differential with a connection structure according to claim 1, characterized in that: When leveling is performed in step 2, leveling is performed by adjusting the angle of the graded adjustment electric hoist (8).

4. The method for preparing a new energy vehicle differential with a connection structure according to claim 1, characterized in that: During the fixing in step 3, the lower shell (2) is installed in the limiting groove (19) in the limiting seat (18), and then the limiting cylinder (20) is activated so that it extends and abuts against the inner cavity of the lower shell (2) and the inner surface of the lower shell (2).

5. The method for preparing a new energy vehicle differential with a connection structure according to claim 1, characterized in that: The infrared signal output terminal (14) and the infrared signal input terminal (15) are respectively fixed to the surfaces of the upper shell (1) and the lower shell (2) via magnetic blocks (16).

6. The method for preparing a new energy vehicle differential with a connection structure according to claim 1, characterized in that: In step 4, when installing the infrared signal output terminal (14) and the infrared signal input terminal (15), ensure that the output signal of the infrared signal output terminal (14) can be continuously received by the infrared signal input terminal (15).

7. The method for preparing a new energy vehicle differential with a connection structure according to claim 1, characterized in that: During the hoisting in step 6, when the data change of the digital display tensile gauge (6) is less than Z when the teeth are engaged, the upper shell (1) is lowered to its installation position; if the data change is greater than Z, the upper shell (1) should be immediately lifted, the limit seat (18) is rotated to adjust the angle of the lower shell (2), and it is lowered again until the data change of the digital display tensile gauge (6) is less than Z when the teeth are engaged, and the assembly is completed.

8. The method for preparing a new energy vehicle differential with a connection structure according to claim 1, characterized in that: It comprises a welded upper shell (1) and a lower shell (2), wherein a gear set (3) is sleeved on the surface of the lower shell (2).

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