CN217359412U - Rod body bending fatigue testing machine - Google Patents

Abstract

The utility model discloses a body of rod bending fatigue testing machine, which comprises a frame, the frame both ends are equipped with pulley and experimental cylinder respectively, around there being wire rope on the pulley, experimental cylinder is around having experimental flexible pole, experimental flexible pole forms with wire rope swing joint and pulls the closed loop, be connected with tensiometer and double hook turn-buckle on the wire rope, install chain drive in the frame, chain drive includes chain and two sprockets, the chain is around forming the closed loop at two sprockets, install the wire rope clamp on the chain, respectively be equipped with a stopper on being close to the chain of sprocket one side, the motor is connected to the main shaft of sprocket, the utility model discloses a set up double hook turn-buckle and tensile table, realize keeping bending fatigue life test under the condition of the tensile stress of settlement at the test piece.

Description

Rod body bending fatigue testing machine

Technical Field

The utility model belongs to flexible body of rod test equipment field among the combined material, concretely relates to body of rod bending fatigue testing machine.

Background

The composite material flexible rod body is a linear tube rod product such as a carbon fiber continuous sucker rod, a glass fiber sucker rod, a composite material flexible tube and the like, the production length reaches hundreds of meters to thousands of meters, the rod body needs to be coiled on a storage and transportation reel in the production, storage and transportation processes, the working condition of repeated coiling exists, and the working condition of repeated bending under the condition of tension exists in the application process, so that the bending test of the composite material flexible rod body is necessary for product performance verification.

The existing testing machine cannot perform bending fatigue life test under the condition that a test piece keeps set tensile stress, meanwhile, the existing testing machine cannot simultaneously meet the test of a flexible rod for multi-specification test, and in order to achieve winding and unwinding tests under the tensile load of the flexible piece and long-term fatigue life tests, the rod body bending fatigue testing machine is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a body of rod bending fatigue testing machine to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a body of rod bending fatigue test machine, includes the frame, the frame both ends are equipped with pulley and experimental cylinder respectively, around there being wire rope on the pulley, experimental cylinder is around there being experimental flexible pole, experimental flexible pole one end links together through the double hook turn-buckle with wire rope, the wire rope other end connects gradually tensiometer and double hook turn-buckle, the experimental flexible pole other end is connected to the double hook turn-buckle of the wire rope other end, experimental flexible pole is connected with wire rope and is formed the traction closed loop, comes taut experimental flexible pole through adjusting the double hook turn-buckle.

Install chain drive in the frame, chain drive includes chain and two sprockets, the chain forms the closed loop around two sprockets, chain drive distance satisfies the length requirement of experimental flexible rod, install the wire rope clamp on the chain, the wire rope clamp is used for blocking wire rope, realizes haulage wire rope's purpose, the motor is connected to the main shaft of sprocket, the motor drives the sprocket and rotates and then drives drive chain and be reciprocating motion, and drive chain is reciprocating motion and drives wire rope and be reciprocating motion.

Preferably, the size of the test roller is selected according to the radius of the test flexible rod, so that the test of the multi-specification test flexible rod is realized, and the test flexible rod can be wound on the test roller for one or more circles for testing.

Preferably, the chain close to one side of the chain wheel is provided with a stopper respectively, the stoppers are connected with an electric control system, and the electric control system is used for setting the motion direction, the reciprocating operation times, the adjustment operation parameters and the like of the chain.

Preferably, the inner diameter of the pulley is smaller than that of the test roller, so that the mechanical principle is met, and the purpose of energy conservation is achieved.

Preferably, the steel wire rope clamp includes chain connecting plate, intermediate lamella and bottom plate, the chain connecting plate sets up two, and the fixed connection of symmetry is on intermediate lamella upper portion, the bottom plate sets up two, and the fixed connection of symmetry is in the intermediate lamella bottom, it has two first bolt holes to open on the chain connecting plate, and wire rope is located in the middle of two first bolt holes, utilizes two first bolt holes from top to bottom to block wire rope, it has two second bolt holes to open on the bottom plate, and second bolt hole and chain adopt bolted connection together for fix the bottom plate on the chain.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up double hook turn-buckle and tensiometer, realize carrying out bending fatigue life test under the condition of the tensile stress that the testpieces kept the settlement.

2. The utility model discloses can change the size of experimental cylinder according to the radius of experimental flexible rod, realize the experiment of the experimental flexible rod of many specifications.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a wire rope clamp;

in the figure: 1. a pulley; 2. a wire rope; 3. a tension meter; 4. a double hook turnbuckle; 5. a stopper; 6. testing the flexible rod; 7. a frame; 8. a motor; 9. a chain; 10. a steel wire rope clamp; 11. a sprocket; 12. a test roller; 101. a first bolt hole; 102. a chain connecting plate; 103. A middle plate; 104. a second bolt hole; 105. a base plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 2, the present invention provides a technical solution: the utility model provides a body of rod bending fatigue test machine, includes frame 7, 7 both ends of frame are equipped with pulley 1 and experimental cylinder 12 respectively, around there being wire rope 2 on the pulley 1, experimental cylinder 12 is around there being experimental flexible pole 6, 6 one end of experimental flexible pole links together through double hook turn-buckle 4 with wire rope 2, 2 other ends of wire rope connect gradually tensiometer 3 and double hook turn-buckle 4, the 6 other ends of experimental flexible pole are connected to the double hook turn-buckle 4 of the 2 other ends of wire rope, experimental flexible pole 6 is connected with wire rope 2 and is formed and pull the closed loop, comes taut experimental flexible pole 6 through adjusting double hook turn-buckle 4.

Install chain drive in the frame 7, chain drive includes chain 9 and two sprockets 11, chain 9 is around forming the closed loop at two sprockets 11, the length requirement of experimental flexible rod is satisfied to chain 9 transmission distance, install wire rope clamp 10 on the chain 9, wire rope clamp 10 is used for blocking wire rope 2, realizes haulage wire rope 2's purpose, motor 8 is connected to the main shaft of sprocket 11, motor 8 drives sprocket 11 and rotates and then drives drive chain 9 and be reciprocating motion, and drive chain 9 is reciprocating motion and drives wire rope 2 and be reciprocating motion.

Further, the size of the test roller 12 is selected according to the radius of the test flexible rod 6, so that the test of the multi-specification test flexible rod 6 is realized, and the test flexible rod 6 can be wound on the test roller 12 for one or more circles for testing.

Furthermore, a chain 9 close to one side of the chain wheel 11 is provided with a stopper 5, the stopper 5 is connected with an electric control system, and the electric control system is used for setting the motion direction, the reciprocating operation times, the adjustment operation parameters and the like of the chain 9.

Furthermore, the inner diameter of the pulley 1 is smaller than that of the test roller 12, so that the mechanical principle is met, and the purpose of energy conservation is achieved.

Further, the wire rope clamp 10 includes a chain connecting plate 102, an intermediate plate 103 and a bottom plate 105, the chain connecting plate 102 is provided with two, the two symmetrical fixed connections are arranged on the upper portion of the intermediate plate 103, the two bottom plates 105 are provided with two symmetrical fixed connections which are arranged on the bottom of the intermediate plate 103, two first bolt holes 101 are formed in the chain connecting plate 102, the wire rope 2 is located in the middle of the two first bolt holes 101, the wire rope 2 is clamped by the upper and lower first bolt holes 101, two second bolt holes 104 are formed in the bottom plate 105, and the second bolt holes 104 are connected with the chain 9 through bolts for fixing the bottom plate 105 on the chain 9.

The utility model discloses a theory of operation and use flow: the utility model discloses during the use, 6 one end of experimental flexible pole links together through double hook turn-buckle 4 with wire rope 2, the experimental flexible pole 6 other end links together with wire rope 2 other end double hook turn-buckle 4, experimental flexible pole 6 is connected with wire rope 2 and forms the traction closed loop, tighten experimental flexible pole 6 through double hook turn-buckle 4, stop adjusting double hook turn-buckle 4 after showing experimental pulling force until the tensiometer 3, set up the direction of motion of chain 9, reciprocating operation number of times and regulation operating parameter etc. through electrical system, start motor 8, motor 8 drives chain 9 and does reciprocating motion, and drive chain 9 does reciprocating motion and drives wire rope 2 and does reciprocating motion, and record the number of times of experimental flexible pole 6 reciprocating motion, until the experimental flexible pole 6 surface appears the crazing crack (judge the criterion that experimental flexible pole 6 takes place bending fatigue failure), the motor is stopped, so that the fatigue life of the test flexible rod 6 is obtained, the double-hook wire grip 4 is adjusted to strain the test flexible rod 6, so that the test tensile force is changed again, the test tensile force is seen through the reading of the tensile force meter 3, and the bending fatigue life of the test flexible rod 6 under different tensile forces can be obtained by repeating the steps.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is only used for illustrating the technical solutions of the present invention and not for limiting the same, and other modifications or equivalent replacements made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims (8)

1. The utility model provides a body of rod bending fatigue testing machine, includes frame (7), its characterized in that: frame (7) both ends are equipped with pulley (1) and test cylinder (12) respectively, around there being wire rope (2) pulley (1) goes up, test cylinder (12) are around there being test flexible rod (6), test flexible rod (6) form with wire rope (2) swing joint and pull the closed loop, be connected with tensiometer (3) and double hook turn-buckle (4) on wire rope (2), install chain drive mechanism in frame (7), chain drive mechanism includes chain (9) and sprocket (11), chain (9) are around forming the closed loop at sprocket (11), install the fastener on chain (9), be close to and be equipped with stopper (5) on chain (9) of sprocket (11) one side, motor (8) is connected to the main shaft of sprocket (11).

2. The rod body bending fatigue testing machine of claim 1, characterized in that: the fastener is as follows: a wire rope clip (10).

3. The bending fatigue testing machine for the rod body according to claim 1, wherein: the dimensions of the test drum (12) are selected according to the radius of the test flexible rod (6), the test flexible rod (6) being capable of being wound one or more times around the test drum (12) for testing.

4. The bending fatigue testing machine for the rod body according to claim 1, wherein: the limiter (5) is connected with an electric control system.

5. The bending fatigue testing machine for the rod body according to claim 1, wherein: the inner diameter of the pulley (1) is smaller than that of the test roller (12).

6. The bending fatigue testing machine for the rod body according to claim 2, wherein: the steel wire rope clamp (10) comprises two chain connecting plates (102), an intermediate plate (103) and a bottom plate (105), wherein the two chain connecting plates (102) are symmetrically and fixedly connected to the upper portion of the intermediate plate (103), the two bottom plates (105) are symmetrically and fixedly connected to the bottom of the intermediate plate (103).

7. The bending fatigue testing machine for the rod body according to claim 6, wherein: two first bolt holes (101) are formed in the chain connecting plate (102).

8. The bending fatigue testing machine for the rod body according to claim 6, wherein: two second bolt holes (104) are formed in the bottom plate (105).

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