Life test tool

Abstract

The utility model discloses a life test tool, and particularly relates to the technical field of motor screw rod testing, which comprises a base, the top of the base is provided with a plurality of support columns, the tops of the plurality of support columns are jointly provided with a support platform, the top of the support platform is provided with a load-bearing lifting structure, and the load-bearing lifting structure comprises four support seats. The four supporting seats are installed on the supporting platform through screws, guide columns are arranged in the four supporting seats, a lifting seat is arranged at the top of the supporting platform, guide sleeves are embedded into the four corners of the lifting seat and slidably connected with the exteriors of the guide columns, and a balancing weight is installed on the surface of the lifting seat. According to the utility model, the operation of the motor under high load bearing can be simulated, the wear life of the screw rod connected with the motor can be tested, the service life of the motor and the screw rod can be conveniently tested by an operator, and the qualified rate of products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor screw testing, and more specifically, to a life testing tool. Background Art

[0002] In the field of motor manufacturing and testing, life assessment of motors and their key components, such as lead screws, is an important part of ensuring product quality and reliability. Especially in situations where they need to withstand large loads and frequent movements, the durability of the motor lead screw is directly related to the long-term stable operation of the entire equipment.

[0003] After searching, a Chinese patent with authorization announcement number CN220084338U discloses a life detection device for a screw-type stepper motor. The structure is simple to operate and easy to use. It can quickly fix the screw-type stepper motor and facilitate testing operations.

[0004] However, when this structure is used in practice, it is difficult to simulate the bearing capacity of the motor under high load and the wear rate of the screw during the test of the motor screw, resulting in low test accuracy. In view of this, this paper proposes a new life test tooling. Utility Model Content

[0005] In order to overcome the above defects of the prior art, the utility model provides a life test tool to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a life test tool comprises a base, a plurality of support columns are arranged on the top of the base, and a support platform is installed on the top of the plurality of support columns.

[0007] In order to simulate the load of the motor under high load and the wear of the screw, preferably, the load-bearing lifting structure includes four support seats, each of which is installed on the support platform by screws, and each of the four support seats is provided with a guide column. A lifting seat is provided on the top of the support platform, and guide sleeves are embedded at the four corners of the lifting seat. The guide sleeves are slidably connected to the outside of the guide column, and a counterweight block is installed on the surface of the lifting seat.

[0008] In order to ensure that the screw rod connected to the motor is threadedly connected to the lifting seat through the threaded hole, preferably, a threaded hole is opened in the center of the lifting seat, the counterweight block is hollow, and a through hole is opened on the surface of the counterweight block.

[0009] In order to ensure that the motor can be installed while the screw rod is inside the through hole, preferably, a through hole is opened in the central part of the surface of the support platform, and a clearance groove is opened on the outer wall of the support platform, the clearance groove is connected to the through hole, and a mounting hole for installing the motor is opened at the bottom of the support platform.

[0010] In order to facilitate the sliding guidance of the lifting seat, preferably, embedding holes are opened at the four corners of the lifting seat, and a plurality of guide sleeves are fixedly embedded in the corresponding embedding holes.

[0011] In order to reduce the wear between the guide sleeve and the guide column, preferably, the inner wall of the guide sleeve is provided with a plurality of circular grooves, and balls are rotatably mounted inside the plurality of circular grooves, and the balls are attached to the outside of the guide column.

[0012] Technical effects and advantages of the utility model:

[0013] 1. By setting up a load-bearing lifting structure, the screw connected to the output end of the motor is extended to the inside of the through hole through the clearance groove of the support platform, and one end of the screw is threadedly connected to the lifting seat through a threaded hole. The threaded hole opened at the bottom of the support platform is used to install the motor through bolts, and then the motor drives the screw to rotate so that the external lifting seat moves up and down on a small scale, and the lifting seat is guided by sliding on the outside of the guide column through the guide sleeve to improve the stability during the test. The counterweight block on the surface of the lifting seat can add weight to the lifting seat to simulate the wear of the screw of the motor under high load, so as to facilitate the test of the life of the motor and the screw;

[0014] 2. By opening a circular groove on the inner wall of the guide sleeve and rollingly installing a ball inside the circular groove, the ball fits against the outer wall of the guide column, thereby converting the direct friction between the guide sleeve and the guide column into rolling friction, reducing the wear force between the guide sleeve and the guide column, thereby increasing the service life of the tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the connection structure between the counterweight block and the lifting seat of the utility model.

[0017] Figure 3 For the utility model Figure 2 Schematic diagram of the partially enlarged structure.

[0018] Figure 4 It is a schematic diagram of the surface structure of the lifting seat of the utility model.

[0019] Figure 5 This is a schematic diagram of the bottom structure of the support platform of the utility model.

[0020] Figure 6 For the utility model Figure 4 Enlarged structural diagram at A in the middle.

[0021] The accompanying drawings are marked as follows: 1. base; 2. support column; 3. support platform; 4. support seat; 5. guide column; 6. lifting seat; 7. guide sleeve; 8. counterweight block; 9. threaded hole; 10. through hole; 11. through hole; 12. clearance groove; 13. mounting hole; 14. circular groove; 15. ball bearing. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1,

[0024] As attached Figure 1-5 As shown, this embodiment provides a life test tool, including a base 1, a plurality of support columns 2 are arranged on the top of the base 1, and a support platform 3 is installed on the top of the plurality of support columns 2, and a load-bearing lifting structure is arranged on the top of the support platform 3;

[0025] The load-bearing lifting structure includes four support seats 4, which are all installed on the support platform 3 by screws, and the four support seats 4 are all provided with guide columns 5 inside. A lifting seat 6 is provided on the top of the support platform 3, and guide sleeves 7 are embedded at the four corners of the lifting seat 6. The guide sleeves 7 are slidably connected to the outside of the guide columns 5. A counterweight block 8 is installed on the surface of the lifting seat 6. A threaded hole 9 is opened in the center of the lifting seat 6. The counterweight block 8 is hollow and a through hole 10 is opened on the surface of the counterweight block 8. A through hole 11 is opened in the center of the surface of the support platform 3, and a clearance groove 12 is opened on the outer wall of the support platform 3. The clearance groove 12 is connected to the through hole 11. A mounting hole 13 for installing a motor is opened at the bottom of the support platform 3. Embedding holes are opened at the four corners of the lifting seat 6, and multiple guide sleeves 7 are fixedly embedded in the corresponding embedding holes.

[0026] Specifically, in this embodiment, when the life test is performed on the lead screw on the motor, the lead screw connected to the motor output end is first extended to the inside of the through hole 11 through the clearance groove 12 of the support platform 3, and one end of the lead screw is threadedly connected to the lifting seat 6 through the threaded hole 9, and the lead screw is extended to the top of the counterweight block 8 through the through hole 10 on the counterweight block 8, and the bolts on the motor are installed in the installation hole 13 opened at the bottom of the support platform 3, completing the installation of the motor before testing;

[0027] Next, the motor is energized so that the motor drives the screw to rotate. The rotation of the screw causes the external lifting seat 6 to move up and down on a small scale, and the lifting seat 6 is slid and guided on the outside of the guide column 5 through the guide sleeve 7, thereby improving the stability during the test. The counterweight block 8 on the surface of the lifting seat 6 can apply weight to the lifting seat 6 to simulate the wear of the screw of the motor under high load, thereby testing the life of the motor and the screw.

[0028] Embodiment 2,

[0029] As attached Figure 6 As shown, this embodiment provides a life test tool. On the basis of Embodiment 1, specifically, a plurality of circular grooves 14 are provided on the inner wall of the guide sleeve 7, and balls 15 are rollingly installed inside the plurality of circular grooves 14, and the balls 15 are attached to the outside of the guide column 5.

[0030] Specifically, in this embodiment, the guide sleeve 7 is prone to wear when it slides on the outside of the guide column 5 for a long time, which in turn affects the stability of the operation of the lifting seat 6. By opening a circular groove 14 on the inner wall of the guide sleeve 7 and rollingly installing a ball 15 inside the circular groove 14, the ball 15 fits against the outer wall of the guide column 5, thereby converting the direct friction between the guide sleeve 7 and the guide column 5 into rolling friction, reducing the wear force between the guide sleeve 7 and the guide column 5, and thus improving the service life of the tooling.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A life test tool, comprising a base (1), characterized in that: A plurality of support columns (2) are arranged on the top of the base (1), and a support platform (3) is installed on the tops of the plurality of support columns (2), and a load-bearing lifting structure is arranged on the top of the support platform (3); The load-bearing lifting structure comprises four support seats (4), each of which is mounted on a support platform (3) by means of screws, and each of the four support seats (4) is provided with a guide column (5) inside, and a lifting seat (6) is provided on the top of the support platform (3), and each of the four corners of the lifting seat (6) is embedded with a guide sleeve (7), and the guide sleeve (7) is slidably connected to the outside of the guide column (5), and a counterweight block (8) is installed on the surface of the lifting seat (6).

2. The life test tool according to claim 1, characterized in that: A threaded hole (9) is provided at the center of the lifting seat (6); the counterweight block (8) is hollow, and a through hole (10) is provided on the surface of the counterweight block (8).

3. The life test tool according to claim 1, characterized in that: A through hole (11) is provided at the center of the surface of the support platform (3), and a clearance groove (12) is provided on the outer wall of the support platform (3), the clearance groove (12) is connected to the through hole (11), and a mounting hole (13) for mounting a motor is provided at the bottom of the support platform (3).

4. The life test tool according to claim 1, characterized in that: Embedding holes are provided at the four corners of the lifting seat (6), and a plurality of guide sleeves (7) are fixedly embedded in the corresponding embedding holes.

5. The life test tool according to claim 1, characterized in that: The inner wall of the guide sleeve (7) is provided with a plurality of circular grooves (14), and balls (15) are rotatably mounted inside the plurality of circular grooves (14), and the balls (15) are fitted onto the outside of the guide column (5).

Images