Damping spring durability tensile tester

Abstract

The utility model relates to the technical field of damping springs, and discloses a damping spring durability tensile tester, which comprises an operation table, a foot stool, a graduated scale, a sliding block, a second semicircular block, a second movable support and a test assembly, the foot stool is fixedly connected to the bottom of the operation table, and the graduated scale is arranged in the operation table. A testing assembly is arranged in the operation table, a sliding block is slidably connected into the operation table, and a second semicircular block is fixedly connected to the left side of the sliding block. A worm and a worm gear are meshed to drive a first optical shaft to rotate in the operation table, so that the first optical shaft is rotationally connected to the outer side of a second semicircular block through a second movable support, a sliding block is driven to slide in the operation table, and the position of the sliding block is fixed through self-locking of the worm and the worm gear; and the stretching length of the damping spring body is confirmed, and the damping spring bodies with different lengths can be tested, so that the testing accuracy of the device on the damping spring body is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of damping spring, especially to a damping spring endurance tensile tester. BACKGROUND

[0002] Damping spring is a commonly used elastic component, widely used in various vibration equipment, with good stability, low noise, good vibration isolation effect, long service life and other advantages, damping spring has compression spring, rubber spring, composite spring, air bag spring, etc., damping spring endurance tensile tester, i.e. spring fatigue testing machine, is widely used in factories, mines, enterprises, scientific research institutions and other industries, and is suitable for fatigue performance test of various spiral springs.

[0003] According to the automobile damping spring endurance testing device (authorization announcement number: CN217483833U) disclosed by the patent network, the automobile damping spring endurance testing device is described as follows: the utility model discloses a kind of automobile damping spring endurance testing device, testing device includes operation table, testing piece is slidably arranged on the operation table, driving part for driving testing piece sliding is arranged on the operation table, and driving part is slid on the operation table. The utility model testing device is placed between the support plate and the first sliding block, the position of the second sliding block is adjusted by the cylinder drive, the length of the spring stretching is determined, the connecting rod is rotated by starting motor, the first sliding block is driven to reciprocate on the operation plate, the motor movement time is set, the spring is removed, the length in natural state before and after detection is compared by scale, so as to judge the endurance of spring, with simple structure, convenient operation, high degree of automation, can improve the accuracy of detection data.

[0004] For the above description, the applicant believes that the following problems exist:

[0005] In the use process of the utility model, the position of the second sliding block is adjusted by the driving cylinder to confirm the length of the spring stretching, but due to the different specifications of the spring, the length of the spring steel is also different, and only by the cylinder will cause the limited stroke of the cylinder, so that it cannot confirm the stretching length of the damping spring of different specifications, which affects the test accuracy, so that it cannot effectively test the damping spring, thereby reducing the practicality of the device, and therefore a damping spring endurance tensile tester needs to be improved to solve the above problems. UTILITY MODEL CONTENTS

[0006] In order to overcome the problem that due to the different specifications of the spring, the length of the spring is also different, and only by the cylinder will cause the limited stroke of the cylinder, so that it cannot confirm the stretching length of the damping spring of different specifications, which affects the test accuracy.

[0007] The utility model discloses a technical scheme for a shock-absorbing spring durability tensile tester, which comprises an operating table, a foot stand, a scale, a sliding block, a second semicircular block, a second movable support and a testing assembly.

[0008] By starting the first motor, the worm is driven to rotate inside the first semicircular block, which drives the first optical axis to rotate inside the operating table through meshing. The first movable support rotates around the first optical axis, and the second movable support is rotatably connected to the outside of the second semicircular block, which drives the sliding block to slide inside the operating table. The worm and the worm wheel are self-locking, which fixes the position of the sliding block and confirms the stretching length of the shock-absorbing spring body. Different lengths of shock-absorbing spring bodies can be tested to improve the testing accuracy and practicality of the device. By starting the second motor, the second optical axis is driven to rotate inside the sliding block, which drives the third movable support to rotate. The limiting shaft moves in the corresponding groove of the O-shaped block, which drives the sliding base to reciprocally slide inside the operating table through the support plate. The motor movement time is set, and the rotating screw rod drives the movable cover to slide up and down outside the fixed shaft. The shock-absorbing spring body is removed, and the length of the shock-absorbing spring body before and after testing is compared through the scale to determine the durability of the shock-absorbing spring body, which improves the practicality and testing accuracy of the device.

[0009] Preferably, the operating table has a groove at the corresponding position of the sliding block, and the sliding block slides in the groove.

[0010] Preferably, the bottom of the operating table is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a worm, the bottom of the operating table is fixedly connected with a first semicircular block, the worm is rotatably connected inside the first semicircular block, the outside of the worm is meshingly connected with a worm wheel, the inside of the worm wheel is fixedly connected with a first optical axis, the inside of the operating table is rotatably connected with the first optical axis, the outside of the first optical axis is fixedly connected with a first movable support, and the worm wheel is rotatably connected to the outside of the first movable support.

[0011] As preferred, the test assembly comprises a second motor fixedly connected to the bottom of the sliding block, a second optical axis fixedly connected to the output end of the second motor, the second optical axis being rotatably connected to the inside of the sliding block, a third movable support fixedly connected to the outside of the second optical axis, a limiting shaft rotatably connected to the inside of the third movable support, a sliding base slidably connected to the inside of the operation table, a support plate fixedly connected to the left side of the sliding base, an O-shaped block fixedly connected to the left side of the support plate, the limiting shaft being movably arranged in the O-shaped block, a fixed block fixedly connected to the inside of the operation table, a fixed shaft fixedly connected to the inside of the sliding base and the fixed block respectively, a movable cover slidably connected to the outside of the fixed shaft, a threaded rod rotatably connected to the inside of the sliding base and the fixed block respectively, the movable cover being threadedly connected to the outside of the threaded rod, and a damping spring body arranged between the fixed block and the movable cover and between the movable cover and the sliding base.

[0012] As preferred, the operation table is provided with a slot at a corresponding position of the sliding base, and the sliding base is slidably arranged in the slot.

[0013] As preferred, the O-shaped block is provided with a slot at a corresponding position of the limiting shaft, and the limiting shaft is movably arranged in the slot.

[0014] As preferred, the fixed block and the movable cover are provided with slots at corresponding positions of the damping spring body, the sliding base and the movable cover are provided with slots at corresponding positions of the damping spring body, and the damping spring body is arranged in the slots.

[0015] The utility model discloses the beneficial effects that relative to through the drive cylinder and make its adjustment second sliding block's position, through the worm and the worm wheel engagement and drive first optical axis in the inside of operation platform and carry out the rotation, make it through second movable support rotation connection in the outside of second semicircle piece, drive sliding block in the inside of operation platform and carry out the sliding, through the self -lock of worm and worm wheel, fix the position of sliding block, make it confirm the extension length of damping spring body, can test the damping spring body of different length, make it improve the testing accuracy of device to damping spring body, improve the practicality of device, avoid because the spring specification is different, and the length of spring is also different, only through the cylinder will lead to because the stroke of cylinder is limited, make it confirm the extension length of damping spring of different specification, make it influence the problem of testing accuracy. ACCURATE DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is overall structure schematic view of the utility model discloses a kind of damping spring endurance tensile tester;

[0017] Figure 2 It is worm and worm gear structure schematic view of the utility model discloses a kind of damping spring endurance tensile tester;

[0018] Figure 3 It is a second movable support structure schematic view of a shock absorbing spring durability tensile tester of the utility model;

[0019] Figure 4 It is a test assembly structure schematic view of a shock absorbing spring durability tensile tester of the utility model;

[0020] Figure 5 It is a shock absorbing spring body structure schematic view of a shock absorbing spring durability tensile tester of the utility model.

[0021] Mark 1, operation table; 21, first motor; 22, worm; 23, first semicircle block; 24, first optical axis; 25, worm wheel; 26, first movable support; 27, second movable support; 28, second semicircle block; 29, sliding block; 31, second motor; 32, second optical axis; 33, third movable support; 34, limit shaft; 35, sliding base; 36, support plate; 37, O-shaped block; 38, fixed block; 39, fixed shaft; 310, movable cover; 311, threaded rod; 312, shock absorbing spring body; 4, foot stool; 5, scale. Specific implementation

[0022] The utility model is further explained in connection with the drawings and examples.

[0023] Please refer to Figures 1-5 The utility model provides a kind of example: including operation table 1, foot stool 4, scale 5, further including sliding block 29, second semicircle block 28, second movable support 27 and test assembly, the bottom of operation table 1 is fixedly connected with foot stool 4, the inside of operation table 1 is equipped with scale 5, operation table 1 is provided with test assembly, the inside of operation table 1 is slidably connected with sliding block 29, the left side of sliding block 29 is fixedly connected with second semicircle block 28, the outside of second semicircle block 28 is rotatably connected with second movable support 27, second movable support 27 drives sliding block 29 to slide in the inside of operation table 1 by second semicircle block 28, operation table 1 is equipped with groove in the corresponding position of sliding block 29, sliding block 29 slides in groove, make it slide in the inside of operation table 1 by groove, improve the adjustment stroke of sliding block 29, so that it improves the practicability of device.

[0024] Please refer to Figures 2-3In the embodiment, the bottom of the operating table 1 is fixedly connected with the first motor 21, the output end of the first motor 21 is fixedly connected with the worm 22, the bottom of the operating table 1 is fixedly connected with the first semicircle block 23, the worm 22 is rotatably connected in the first semicircle block 23, the outside of the worm 22 is meshingly connected with the worm gear 25, the inside of the worm gear 25 is fixedly connected with the first optical axis 24, the first optical axis 24 is rotatably connected in the operating table 1, the outside of the first optical axis 24 is fixedly connected with the first movable support 26, the worm gear 25 is rotatably connected outside the first movable support 26, the first motor 21 is started to drive the worm 22 to rotate in the first semicircle block 23, to drive the first optical axis 24 to rotate in the operating table 1 through meshing, to drive the first movable support 26 to rotate around the first optical axis 24, to drive the sliding block 29 to slide in the operating table 1 through the second movable support 27 rotatably connected outside the second semicircle block 28, to test the stretching length of the shock absorbing spring body 312, to improve the testing accuracy of the device on the shock absorbing spring body 312, and to improve the practicability of the device.

[0025] Please refer to Figures 4-5In the embodiment, the test assembly comprises a second motor 31 fixedly connected to the bottom of the sliding block 29, a second optical shaft 32 fixedly connected to the output end of the second motor 31, the second optical shaft 32 being rotatably connected to the inside of the sliding block 29, a third movable support 33 fixedly connected to the outside of the second optical shaft 32, a limiting shaft 34 rotatably connected to the inside of the third movable support 33, a sliding base 35 slidably connected to the inside of the operating table 1, a supporting plate 36 fixedly connected to the left side of the sliding base 35, an O-shaped block 37 fixedly connected to the left side of the supporting plate 36, the limiting shaft 34 movably arranged in the O-shaped block 37, a fixed block 38 fixedly connected to the inside of the operating table 1, a fixed shaft 39 fixedly connected to the inside of the sliding base 35 and the fixed block 38 respectively, a movable cover 310 slidably connected to the outside of the fixed shaft 39, a threaded rod 311 rotatably connected to the inside of the sliding base 35 and the fixed block 38 respectively, the movable cover 310 being threadedly connected to the outside of the threaded rod 311, a damping spring body 312 arranged between the fixed block 38 and the movable cover 310, the damping spring body 312 being arranged between the movable cover 310 and the sliding base 35, the second motor 31 is started to drive the second optical shaft 32 to rotate in the sliding block 29, so as to drive the third movable support 33 to rotate, the limiting shaft 34 is movably arranged in the corresponding groove of the O-shaped block 37, so as to drive the sliding base 35 to reciprocatingly slide in the operating table 1 through the supporting plate 36, the movement time of the motor is set, the threaded rod 311 is rotated to drive the movable cover 310 to slide up and down outside the fixed shaft 39, the damping spring body 312 is removed, the length of the damping spring body 312 before and after detection in the natural state is compared through the scale 5, so as to judge the durability of the damping spring body 312, the operating table 1 is provided with a groove at the corresponding position of the sliding base 35, the sliding base 35 slides in the groove, the groove limits the sliding base 35 to increase the stability, the O-shaped block 37 is provided with a groove at the corresponding position of the limiting shaft 34, the limiting shaft 34 movably arranged in the groove, the groove drives the third movable support 33 to drive the limiting shaft 34 to move in the corresponding groove of the O-shaped block 37, so as to drive the sliding base 35 to reciprocatingly slide in the operating table 1, the damping spring body 312 is tested, the fixed block 38 and the movable cover 310 are provided with grooves at the corresponding positions of the damping spring body 312, the sliding base 35 and the movable cover 310 are provided with grooves at the corresponding positions of the damping spring body 312, the damping spring body 312 is arranged in the grooves, the threaded rod 311 is rotated to drive the movable cover 310 to slide up and down outside the fixed shaft 39, the damping spring body 312 is fixed or disassembled, so as to improve the test stability of the damping spring body 312.

[0026] In the work, by starting the first motor 21 makes it drive the worm 22 in the first semicircle block 23 inside the rotation, make it through the mesh drive first optical axis 24 in the operation platform 1 inside the rotation, the first movable support 26 around the first optical axis 24 rotation, make it through the second movable support 27 rotation connection in the second semicircle block 28 outside, drive the sliding block 29 in the operation platform 1 inside the sliding, through the worm 22 and worm wheel 25 self locking, the position of the sliding block 29 is fixed, can confirm the length of the shock absorbing spring body 312, can test different length of shock absorbing spring body 312, make it improve the testing accuracy of the device for shock absorbing spring body 312, improve the practicality of the device, by starting the second motor 31 makes it drive the second optical axis 32 in the sliding block 29 inside the rotation, make it drive the third movable support 33 rotation, through the limiting shaft 34 in the O type block 37 corresponding groove activity, make it through the support plate 36 drive sliding base 35 in the operation platform 1 inside the reciprocating sliding, set motor movement time, through the rotation screw rod 311 makes it drive the movable cover 310 in the fixed shaft 39 outside the up and down sliding, take down the shock absorbing spring body 312, through the scale 5 contrast shock absorbing spring body 312 detection before and after detection of the length of the natural state, so as to judge the durability of shock absorbing spring body 312, make it improve the practicality of the device, improve the testing accuracy of the device.

[0027] Through the above steps, through the second movable support 27 rotation connection in the second semicircle block 28 outside, drive the sliding block 29 in the operation platform 1 inside the sliding, through the worm 22 and worm wheel 25 self locking, the position of the sliding block 29 is fixed, can confirm the length of the shock absorbing spring body 312, can test different length of shock absorbing spring body 312, to solve the problem that due to the different specifications of spring, the length of spring is also different, only through the cylinder will lead to due to the limited stroke of the cylinder, make it can't confirm the length of the shock absorbing spring of different specifications, make it affect the testing accuracy problem.

Claims

1. A shock absorber spring endurance tension tester comprising an operating table (1), a foot stand (4), a scale (5), characterized in that: The utility model also includes sliding block (29), second semicircle block (28), second movable support (27) and test component, the bottom of operating platform (1) is fixedly connected with support (4), the inside of operating platform (1) is equipped with scale (5), the inside of operating platform (1) is provided with test component, the inside of operating platform (1) is slidably connected with sliding block (29), the left side of sliding block (29) is fixedly connected with second semicircle block (28), the outside of second semicircle block (28) is rotatably connected with second movable support (27), and second movable support (27) drives sliding block (29) to slide in the inside of operating platform (1) through second semicircle block (28).

2. A durability tensile tester for shock absorbing springs as claimed in claim 1, wherein: Operating platform (1) is provided with a groove at the corresponding position of sliding block (29), and sliding block (29) slides in the groove.

3. A durability tensile tester for shock absorbing springs as defined in claim 1 wherein: The bottom of operating platform (1) is fixedly connected with first motor (21), the output of first motor (21) is fixedly connected with worm (22), the bottom of operating platform (1) is fixedly connected with first semicircle block (23), worm (22) is rotatably connected in the inside of first semicircle block (23), the outside of worm (22) is meshedly connected with worm wheel (25), the inside of worm wheel (25) is fixedly connected with first optical axis (24), first optical axis (24) is rotatably connected in the inside of operating platform (1), the outside of first optical axis (24) is fixedly connected with first movable support (26), and worm wheel (25) is rotatably connected on the outside of first movable support (26).

4. A durability tensile tester for shock absorbing springs as defined in claim 3 wherein: The test component comprises a second motor (31) fixedly connected to the bottom of the sliding block (29), a second optical axis (32) fixedly connected to the output of the second motor (31), the second optical axis (32) rotatably connected to the inside of the sliding block (29), a third movable support (33) fixedly connected to the outside of the second optical axis (32), a limiting shaft (34) rotatably connected to the inside of the third movable support (33), a sliding base (35) slidably connected to the inside of the operating platform (1), a support plate (36) fixedly connected to the left side of the sliding base (35), an O-shaped block (37) fixedly connected to the left side of the support plate (36), the limiting shaft (34) movably arranged in the O-shaped block (37), a fixed block (38) fixedly connected to the inside of the operating platform (1), a fixed shaft (39) fixedly connected to the inside of the sliding base (35) and the fixed block (38) respectively, a movable cover (310) slidably connected to the outside of the fixed shaft (39), a threaded rod (311) rotatably connected to the inside of the sliding base (35) and the fixed block (38) respectively, the movable cover (310) threadedly connected to the outside of the threaded rod (311), a damping spring body (312) arranged between the fixed block (38) and the movable cover (310), and the damping spring body (312) arranged between the movable cover (310) and the sliding base (35).

5. A durability tensile tester for shock absorbing springs as defined in claim 4 wherein: The operating platform (1) is provided with a groove at the corresponding position of the sliding base (35), and the sliding base (35) slides in the groove.

6. A durability tensile tester for shock absorbing springs as defined in claim 4 wherein: The O-shaped block (37) is provided with a groove at the corresponding position of the limiting shaft (34), and the limiting shaft (34) moves in the groove.

7. A durability tensile tester for shock absorbing springs as defined in claim 4 wherein: The fixed block (38) and the movable cover (310) are provided with grooves at corresponding positions of the damping spring body (312), and the sliding base (35) and the movable cover (310) are provided with grooves at corresponding positions of the damping spring body (312), and the damping spring body (312) is arranged in the grooves.

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