CN218823716U

CN218823716U - Bellows fatigue test device

Info

Publication number: CN218823716U
Application number: CN202222952249.5U
Authority: CN
Inventors: 赵素芝
Original assignee: Shenyang Jingchen Juhui Technology Development Co ltd
Current assignee: Shenyang Jingchen Juhui Technology Development Co ltd
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-04-07
Anticipated expiration: 2032-11-07

Abstract

The utility model belongs to the technical field of the bellows test, especially, relate to a bellows fatigue test device, including base and roof, the base passes through the stand and links to each other its characterized in that with the roof is fixed: a driving mechanism is arranged above the top plate, two sets of supports used for clamping two ends of the corrugated pipe are arranged between the base and the top plate in pairs from top to bottom, and the driving mechanism is hinged with the supports at the top through a first supporting rod, a second supporting rod and a third supporting rod in sequence; inside the support, the second worm is respectively provided with a section of spiral tooth with opposite rotation directions on the left and the right, the second worm is connected with the support through a bearing, a rotating wheel is arranged at the center of the second worm, the two sections of spiral teeth of the second worm are respectively meshed with the two second worm gears, and the driving mechanism alternately rotates forwards and backwards. The utility model discloses a servo motor just reverses among the actuating mechanism and starts, and stretch repeatedly the bellows, accomplish fatigue performance's test.

Description

Bellows fatigue test device

Technical Field

The utility model belongs to the technical field of the bellows test, especially, relate to a bellows fatigue test device.

Background

The corrugated pipe is a tubular elastic sensitive element formed by connecting foldable corrugated sheets along the folding and stretching direction, in the production process of the corrugated pipe, the tensile fatigue strength and the torsion resistance of the corrugated pipe need to be detected, the fatigue strength of the corrugated pipe is determined according to the detection result, and the produced corrugated pipe can meet the production standard.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bellows fatigue test device solves the test of two bellows simultaneously, improves fatigue test's efficiency.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a bellows fatigue test device, includes base and roof, the base passes through the stand and links to each other its characterized in that with the roof is fixed: a driving mechanism is arranged above the top plate, two sets of supports for clamping two ends of the corrugated pipe are arranged between the base and the top plate in pairs from top to bottom, the driving mechanism is hinged with the support at the top through a first supporting rod, a second supporting rod and a third supporting rod in sequence, and the support at the bottom is connected with the base; the support is internally provided with a section of spiral teeth with opposite rotation directions on the left and right of the second worm respectively, the second worm is connected with the side wall of the support through a bearing in a rotating manner, a rotating wheel is connected to the middle of the second worm, the two sections of spiral teeth of the second worm are respectively meshed and matched with the two second worm wheels, the two second worm wheels are connected with the support through bearings in a rotating manner, and the driving mechanism alternately rotates in a positive rotation direction and a reverse rotation direction.

Preferably, the driving mechanism comprises a support plate, a servo motor, a first worm and a first worm wheel, the support plate is fixedly connected with the top plate through a support, the upper surface of the support plate is connected with the servo motor, an output shaft of the servo motor is connected with the first worm, the upper end of the first worm is rotatably connected with the support plate through a bearing, the two first worm wheels are arranged on two sides of the first worm in a bilateral symmetry manner, the first worm is meshed with the two first worm wheels, the two first worm wheels are connected with the support plate through a wheel shaft and a wheel frame, the wheel shaft of the first worm wheel is fixedly connected with one end of a first support rod, the other end of the first support rod is hinged with one end of a second support rod, the other end of the second support rod is hinged with one end of a third support rod, and the other end of the third support rod penetrates through an opening in the top plate and is movably connected with the opening.

Preferably, the second worm wheel and the gear are of an integrated structure, the gear is meshed with the rack, the rack is fixedly connected with the sliding block, the sliding block is movably connected with the guide groove in the support, and the sliding block is connected with the clamping block.

Preferably, the opposite surfaces of the two clamping blocks are provided with rubber pads for clamping the corrugated pipe.

Preferably, the inner surface of the clamping block is arc-shaped, so that the clamping block can be conveniently attached to the corrugated pipe.

Preferably, the support of bottom is articulated with the one end of screw rod, and the other end of screw rod is equipped with the handle, is connected through the screw thread piece between screw rod and the base.

Compared with the prior art, the beneficial effects of the utility model reside in that: through the cooperation between servo motor, first worm wheel, first branch, second branch and the third branch, start through servo motor just reversing, servo motor drives the support up-and-down motion at top, stretches and recovers the bellows, through stretching the bellows repeatedly, carries out fatigue test to the bellows, and the device can carry out fatigue test to two bellows simultaneously, and efficiency of software testing has improved one time.

Drawings

Fig. 1 is a schematic view of an external structure of an embodiment of the present invention;

FIG. 2 is a schematic diagram of the internal structure of the embodiment of the present invention;

fig. 3 is a schematic connection diagram of the servo motor, the first worm and the first worm wheel in the embodiment of the present invention;

fig. 4 is a schematic view illustrating the connection of the bracket, the second worm and the rotating wheel in the embodiment of the present invention.

In the figure: 1. the device comprises a base, 2, a top plate, 3, a driving mechanism, 301, a support plate, 302, a servo motor, 303, a first worm, 304, a first worm wheel, 305, a first support rod, 306, a second support rod, 307, a third support rod, 3a1, a handle, 3a2, a screw rod, 3a3, a thread block, 4, a support, 5, a second worm, 6, a rotating wheel, 7, a second worm wheel, 8, a gear, 9, a rack, 10, a sliding block, 11, a clamping block, 12 and a corrugated pipe.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

see fig. 1-4, for the utility model relates to an outside structural schematic of bellows fatigue test device embodiment, including base 1 and roof 2, base 1 passes through the stand and links to each other with roof 2 is fixed, the top of roof 2 is provided with actuating mechanism 3, be provided with two sets of supports 4 that are used for centre gripping bellows both ends from top to bottom in pairs between base 1 and the roof 2, actuating mechanism 3 loops through first branch 305, second branch 306, support 4 at third branch 307 and top is articulated, support 4 of bottom is articulated with screw rod 3a 2's one end, screw rod 3a 2's the other end is equipped with handle 3a1, be connected through thread piece 3a3 between screw rod 3a2 and the base 1. Inside the support 4, the second worm 5 is respectively provided with a section of spiral teeth with opposite rotation directions on the left and right sides, the second worm 5 is rotatably connected with the side wall of the support 4 through a bearing, a rotating wheel 6 is connected at the center of the second worm 5, the two sections of spiral teeth of the second worm 5 are respectively meshed and matched with two second worm wheels 7, the two second worm wheels 7 are rotatably connected with the support 4 through bearings, and the driving mechanism 3 rotates forwards and reversely alternately.

The driving mechanism 3 comprises a support plate 301, a servo motor 302, a first worm 303 and a first worm wheel 304, the support plate 301 is fixedly connected with the top plate 2 through a support, the upper surface of the support plate 301 is connected with the servo motor 302, an output shaft of the servo motor 302 is connected with the first worm 303, the upper end of the first worm 303 is rotatably connected with the support plate 301 through a bearing, the two first worm wheels 304 are symmetrically arranged on two sides of the first worm 303 in a left-right mode, the first worm 303 is meshed with the two first worm wheels 304, the two first worm wheels 304 are both connected with the support plate 301 through a wheel shaft and a wheel frame, the wheel shaft of the first worm wheel 304 is fixedly connected with one end of the first support rod 305, the other end of the first support rod 305 is hinged with one end of the second support rod 306, the other end of the second support rod 306 is hinged with one end of the third support rod 307, and the other end of the third support rod 307 penetrates through an opening in the top plate 2 and is movably connected with the opening.

Second worm wheel 7 and gear 8 formula structure as an organic whole, gear 8 and rack 9 mesh link to each other, and rack 9 and slider 10 are fixed to be linked to each other, slider 10 and the guide way swing joint on the support 4, are connected with clamp splice 11 on the slider 10. The opposite surfaces of the two clamping blocks 11 are provided with rubber pads for clamping the corrugated pipe. The inner surface of the clamp block 11 is curved to facilitate the engagement with the corrugated pipe 12.

Servo motor 302 forward drives first worm 303 and rotates, synchronous first worm 303 drives two first worm wheels 304 and rotates, first worm wheel 304 drives first branch 305 and rotates 10 ~ 20 degrees angles, first branch 305 drives the motion of second branch 306, second branch 306 drives the slip of third branch 307, third branch 307 drives the motion of support 4 of top, switch through servo motor 302 forward and reverse, stretch bellows 12 repeatedly, accomplish bellows 12 fatigue test, two sets of supports 4 can carry out fatigue test to two bellows 12 simultaneously.

The distance between the two clamping blocks 11 is adjustable to adapt to corrugated pipes with different specifications. The rotating wheel 6 is rotated, the rotating wheel 6 drives the second worm 5 to rotate, the second worm 5 drives the two second worm gears 7 to rotate, the second worm gears 7 drive the gears 8 to rotate, the gears 8 drive the racks 9 to move, the racks 9 drive the clamping blocks 11 to move through the sliding blocks 10, and adjustment is completed.

When adjusting handle 3a1, handle 3a1 drives screw rod 3a2 and rotates, because screw rod 3a2 and screw block 3a3 threaded connection, screw block 3a 3's position is fixed relatively base 1, makes screw rod 3a2 change vertical height when rotating, makes support 4 at bottom and support 4 support distance at top change, can test the bellows 12 of different length.

While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

Claims

1. The utility model provides a bellows fatigue test device, includes base (1) and roof (2), base (1) is fixed continuous with roof (2) through the stand, its characterized in that: a driving mechanism (3) is arranged above the top plate (2), two sets of supports (4) used for clamping two ends of the corrugated pipe are arranged between the base (1) and the top plate (2) in pairs up and down, the driving mechanism (3) is hinged with the support (4) at the top through a first support rod (305), a second support rod (306) and a third support rod (307) in sequence, and the support (4) at the bottom is connected with the base (1); inside support (4), respectively establish one section spiral tooth that turns to opposite about on second worm (5), second worm (5) rotate with the lateral wall of support (4) through the bearing and link to each other, the department between two parties of second worm (5) is connected with runner (6), two sections spiral teeth of second worm (5) match with two second worm wheel (7) meshing respectively, two second worm wheel (7) all rotate with support (4) through the bearing and link to each other, actuating mechanism (3) corotation reversal is gone on in turn.

2. A bellows fatigue testing device according to claim 1, wherein: the driving mechanism (3) comprises a support plate (301), a servo motor (302), a first worm (303) and a first worm wheel (304), the support plate (301) is fixedly connected with the top plate (2) through a support, the servo motor (302) is connected to the upper surface of the support plate (301), an output shaft of the servo motor (302) is connected with the first worm (303), the upper end of the first worm (303) is rotatably connected with the support plate (301) through a bearing, the two first worm wheels (304) are symmetrically arranged on two sides of the first worm (303) in a left-right mode, the first worm (303) is meshed with the two first worm wheels (304), the two first worm wheels (304) are connected with the support plate (301) through a wheel shaft and a wheel frame, the wheel shaft of the first worm wheel (304) is fixedly connected with one end of a first support rod (305), the other end of the first support rod (305) is hinged with one end of a second support rod (306), and the other end of the second support rod (306) is hinged with one end of a third support rod (307).

3. A bellows fatigue testing device according to claim 1, wherein: second worm wheel (7) and gear (8) formula structure as an organic whole, gear (8) and rack (9) meshing link to each other, and rack (9) and slider (10) are fixed to be linked to each other, and slider (10) and the guide way swing joint on support (4), be connected with clamp splice (11) on slider (10).

4. A bellows fatigue test device according to claim 3, wherein: rubber pads for clamping the corrugated pipe are arranged on the opposite surfaces of the two clamping blocks (11).

5. A bellows fatigue testing device according to claim 3, wherein: the inner surface of the clamping block (11) is arc-shaped and is convenient to be attached to the corrugated pipe (12).

6. A bellows fatigue testing device according to claim 1, wherein: support (4) of bottom are articulated with the one end of screw rod (3 a 2), and the other end of screw rod (3 a 2) is equipped with handle (3 a 1), is connected through screw thread piece (3 a 3) between screw rod (3 a 2) and base (1).