Electric tubular column angle positioning tool

Abstract

The utility model relates to the technical field of machinery, in particular to an electric tubular column angle positioning tool which comprises a spline sleeve, a pin and a base, a threaded hole is formed in the center of the base, two pin holes with the same height are formed in the side face of the base, the pin penetrates through the two pin holes, and the pin located in the base is erected in the middle of the threaded hole. External threads are arranged at the lower end of an outer ring of the spline sleeve and connected with the threaded hole, the pin abuts against the bottom of the spline sleeve, a spline structure is arranged at the upper end of an inner ring of the spline sleeve, and an output shaft of the electric tubular column is inserted into the inner ring of the spline sleeve and connected with the spline structure. Compared with the prior art, through cooperation of the spline sleeve, the pin and the base, fixation of the middle position of the electric tubular column is realized, so that the steering angle of the electric tubular column is accurately controlled in an experiment process, and verification of the steering angle in a verification process is realized. The device has the advantages of being easy and convenient to operate, capable of being matched with different electric pipe columns and not limited by space.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical technical field, and specifically is a kind of electric column angle positioning tool. BACKGROUND

[0002] Electric column needs to be verified in a series of laboratory in product design process.Currently, there is no specific experimental requirement for the rotation angle of electric column.In the functional test of electric column, it is often carried out at random angle, and there is no special requirement for rotation angle.

[0003] Currently, the requirement of automobile electrification and intelligentization for NVH is higher and higher, and many noise problems are related to special angle.In some special angle requirement verification experiments, it is necessary to use column function test bench to connect intermediate shaft and mechanical steering machine, and then carry out related experiments, or only related verification can be carried out on whole vehicle.The angle requirement verification is complicated, and the number of column function test bench is very small, which cannot meet the experimental needs of multiple projects.

[0004] Therefore, it is necessary to design an electric column angle positioning tool to accurately control the steering angle of electric column in the experimental process. SUMMARY

[0005] The utility model aims at overcoming the insufficient of prior art, provide a kind of electric column angle positioning tool, to accurately control the steering angle of electric column in the experimental process.

[0006] In order to achieve the above purpose, the utility model is a kind of electric column angle positioning tool, including spline sleeve, pin, base, the central part of base has threaded hole, the side surface of base is equipped with two height same pin holes, pin passes through two pin holes, and the pin inside base is arranged in the middle part of threaded hole, the outer circle lower end of spline sleeve has external thread, external thread is connected with threaded hole, pin abuts against the bottom of spline sleeve, the inner circle upper end of spline sleeve has spline structure, the output shaft of electric column is inserted into the inner circle of spline sleeve, and is connected with spline structure.

[0007] The lower end of the base is provided with an outwardly extending support leg, the support leg is provided with a fixed hole penetrating upward and downward, and the fastener is fixed with the cast iron platform after penetrating through the fixed hole.

[0008] The two pin holes are concentric with respect to the center of the base.

[0009] The spline structure is spline matched with the output shaft of the electric column.

[0010] Compared with existing technologies, this invention achieves mid-position fixation of the electric column through the cooperation of a spline sleeve, pin, and base, thereby accurately controlling the steering angle of the electric column during experiments and enabling verification of the steering angle during the validation process. This invention has the advantages of simple operation, adaptability to different electric columns, and no space limitations. Attached Figure Description

[0011] Fig. 1 This is a schematic diagram of the structure of this utility model.

[0012] Fig. 2 This is a cross-sectional view of the present invention.

[0013] Fig. 3 This is a schematic diagram of the structure of the spline sleeve of this utility model.

[0014] Fig. 4 This is a structural schematic diagram of the base of this utility model.

[0015] Fig. 5 This is a structural diagram illustrating the applicable state of this utility model.

[0016] Fig. 6 This is a cross-sectional view showing the applicable state of this utility model. Detailed Implementation

[0017] The present invention will now be further described with reference to the accompanying drawings.

[0018] See Figs. 1-4 This utility model is an electric column angle positioning fixture, including a splined sleeve, a pin, and a base. The base 1 has a threaded hole 13 in its center, and two pin holes 14 of the same height on its side. The pin 2 passes through the two pin holes 14. The pin 2 located inside the base 1 is supported in the middle of the threaded hole 13. The lower end of the outer ring of the splined sleeve 3 has an external thread 31, which connects to the threaded hole 13. The pin 2 abuts against the bottom of the splined sleeve 3. The upper end of the inner ring of the splined sleeve 3 has a spline structure 32. The output shaft of the electric column 4 is inserted into the inner ring of the splined sleeve 3 and connected to the spline structure 32. Fig. 5 , Fig. 6 As shown.

[0019] The lower end of the base 1 is provided with outwardly extending support feet 11. The support feet 11 are provided with through-hole fixing holes 12. After the fastener passes through the fixing holes 12, it is fixed to the cast iron platform, thereby locking the entire fixture. This is convenient, quick, and not limited by space.

[0020] The two pin holes 14 are symmetrical with respect to the center of the base 1.

[0021] Pin 2 serves as the centering mechanism, making it easy to install and disassemble. Its structure is simple and effective, requiring no complex limiting mechanism.

[0022] The spline structure 32 is matched with the spline of the output shaft of the electric column 4. By replacing the spline sleeve 3 with different spline structures 32, the spline of the output shaft of different electric columns 4 can be matched, making the changeover simple and quick.

[0023] See Fig. 5 , Fig. 6 In operation, the splined sleeve 3 is threadedly connected to the base 1. When the splined sleeve 3 is screwed into the threaded hole 13 of the base 1 and contacts the pin 2, the pin 2 locks and limits the splined sleeve 3. At this time, the splined sleeve 3 is splinedly connected to the input shaft of the electric column 4, meaning the current angle of the electric column is the center position of the steering wheel. Then, the pin 2 is pulled out, and the center position of the steering wheel can be used as the starting position for the angle severity test. By rotating the external steering wheel and connecting it to the base 1 through the threaded connection of the splined sleeve 3, the steering wheel of a complete vehicle is simulated, and the angle is verified during the verification process.

[0024] This invention utilizes a splined sleeve, a pin, and a base to fix the electric motor column in its center position, thereby accurately controlling the rotation angle of the electric motor column during experiments and enabling verification of the rotation angle during the validation process. This invention has the advantages of simple operation, adaptability to different electric motor columns, and no space limitations.

Claims

1. An electric column angle positioning fixture, comprising a splined sleeve, a pin, and a base, characterized in that: The base (1) has a threaded hole (13) in the center and two pin holes (14) of the same height on the side of the base (1). The pin (2) passes through the two pin holes (14). The pin (2) located inside the base (1) is mounted in the middle of the threaded hole (13). The lower end of the outer ring of the spline sleeve (3) has an external thread (31). The external thread (31) is connected to the threaded hole (13). The pin (2) abuts against the bottom of the spline sleeve (3). The upper end of the inner ring of the spline sleeve (3) has a spline structure (32). The output shaft of the electric column (4) is inserted into the inner ring of the spline sleeve (3) and connected to the spline structure (32).

2. The electric tube column angle positioning fixture according to claim 1, characterized in that: The lower end of the base (1) is provided with an outwardly extending support foot (11), and the support foot (11) is provided with a through fixing hole (12). After the fastener passes through the fixing hole (12), it is fixed to the cast iron platform.

3. The electric tube column angle positioning fixture according to claim 1, characterized in that: The two pin holes (14) are symmetrical with respect to the center of the base (1).

4. The electric tube column angle positioning fixture according to claim 1, characterized in that: The spline structure (32) is matched with the spline of the output shaft of the electric column (4).

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