CN209979373U

CN209979373U - Cable tensile strength test equipment

Info

Publication number: CN209979373U
Application number: CN201920283934.9U
Authority: CN
Inventors: 王时佳
Original assignee: Zhejiang Lizhou Cable Co Ltd
Current assignee: Zhejiang Lizhou Cable Co.,Ltd.
Priority date: 2019-03-06
Filing date: 2019-03-06
Publication date: 2020-01-21
Anticipated expiration: 2029-03-06

Abstract

The utility model discloses a cable tensile strength test device, including tensile mechanism, fixed establishment and multiunit pulling force test mechanism, the fixed establishment includes the screwed pipe, the inner chamber threaded connection of screwed pipe has the threaded rod, and the bottom of threaded rod is rotated and is connected with the second connecting plate, and the bottom of second connecting plate links firmly the couple, and the cover is equipped with the link on the couple, and the bottom of link links firmly anchor clamps, is connected with lower anchor clamps on the base; every group's tensile force accredited testing organization includes pull rod, spring pipe, supporting seat and tensiometer, the lower extreme and the supporting seat fixed connection of spring pipe, supporting seat and tensiometer fixed mounting on the base and tensiometer are located the supporting seat, the top and the second connecting plate of pull rod link firmly, the bottom runs through to the inner chamber of spring pipe and has linked firmly the sliding plate, have linked firmly the spring between sliding plate and the tensiometer. The test equipment can test at multiple stations simultaneously and has high test efficiency.

Description

Cable tensile strength test equipment

Technical Field

The utility model relates to a cable tensile strength test equipment belongs to cable test technical field.

Background

During the stretching process, the maximum force borne by the material at the time of the stretch-breaking is obviously reduced along with the transverse section size after the material enters the strengthening stage through the yield stage, and the stress obtained by dividing the maximum force by the original cross section area of the sample is called tensile strength or strength limit.

The utility model discloses a device for detecting cable tensile strength is disclosed in the chinese utility model patent that the bulletin number is CN208091827U, the bulletin date is 2018.11.13, including base, first connecting block, extension spring and electric telescopic handle, the base upper surface is connected with the support, and the support is connected with first fixed block through the recess, the upper surface of first fixed block lower surface and base all is connected with first connecting block through the fourth connecting block, and is provided with damping spring in the fourth connecting block, be provided with the second fixed block in the first connecting block, and the outside of first connecting block is connected with the block to the surface of block is provided with the non slipping spur, extension spring is connected with base and first fixed block respectively through the second connecting block, and is provided with the electronic scale on the second connecting block. The device is provided with only one detection station, so that the tensile strength of the cable can not be measured in batches, and particularly, the detection is more troublesome for different types and batches of cables, time and labor are wasted, the detection efficiency is low, the cable is not convenient to adjust and disassemble, and inconvenience is brought to a user.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cable tensile strength test equipment, but this test equipment multistation tests simultaneously, has the advantage that efficiency of software testing is high, has solved the problem that current cable tensile strength test equipment only has a station, detection efficiency is low.

In order to achieve the above object, the utility model provides a following technical scheme: a cable tensile strength testing device comprises a base, a stretching mechanism, a fixing mechanism and a plurality of groups of tensile force testing mechanisms, wherein the fixing mechanism comprises a threaded pipe, an inner cavity of the threaded pipe is in threaded connection with a threaded rod, the bottom of the threaded rod is connected with a second connecting plate through a bearing, the bottom of the second connecting plate is fixedly connected with a hook, a hanging ring is sleeved on the surface of the hook, the bottom of the hanging ring is fixedly connected with an upper clamp, the top of the base is connected with a lower clamp matched with the upper clamp through a clamp seat, and a cable is connected between the upper clamp and the lower clamp; each group of tension testing mechanism comprises a pull rod, a spring tube, a supporting seat and a tension meter, the lower end of the spring tube is fixedly connected with the supporting seat, the supporting seat and the tension meter are fixedly installed on the base, the tension meter is located in the supporting seat, the top of the pull rod is fixedly connected with a second connecting plate, the bottom of the pull rod penetrates through an inner cavity of the spring tube, a sliding plate is fixedly connected with the bottom of the pull rod, and a spring is fixedly connected between the sliding plate and the tension meter.

Preferably, the stretching mechanism includes the roof, the bottom fixed mounting of roof has the motor, the output shaft of motor passes through shaft coupling fixedly connected with lead screw, the cover is equipped with the screw on the lead screw, the screw links firmly with first connecting plate, the screwed pipe links firmly in the bottom of first connecting plate.

Preferably, the bottom end of the screw rod is fixedly connected with a limiting block.

Preferably, both ends of the first connecting plate are fixedly connected with pulley frames, the inner cavities of the pulley frames are movably connected with pulleys through rotating shafts, supporting plates are fixedly connected between the two ends of the base and the two ends of the top plate, and pulley grooves matched with the pulleys are respectively formed in the two opposite sides of each supporting plate.

Preferably, the two sides of the bottom of the top plate are provided with scales, and the bottoms of the scales are flush with the bottoms of the pulley grooves.

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

1. the utility model discloses a cooperation of first connecting plate, screwed pipe, threaded rod and second connecting plate is used, the user can twist the threaded rod to the inner chamber of screwed pipe, can be through screwed pipe and threaded rod with first connecting plate and second connecting plate connection, and then can increase the test station of cable tensile strength test equipment, and convenient to detach and install, to with different types and batch cables, it is very convenient to detect, labour saving and time saving, the efficiency of detection has greatly been improved, and convenient to use person adjusts and dismantles, structural design is simple reasonable, bring convenience to the user;

2. the utility model can limit the first connecting plate by using the pulley yoke, the pulley groove and the supporting plate in a matching way, so that the first connecting plate can move more stably and smoothly;

3. the utility model can visually and conveniently measure the rising height of the first connecting plate by setting the dividing ruler, and a user only needs to record the scales before and after rising, thereby having good practicability;

4. the utility model discloses a spring pipe's setting can play the effect of protection to the spring, avoids the spring to be touched by the foreign matter and influence measured data's the condition in tensile process, has increased the accuracy that detects.

Therefore, compared with the prior art, the utility model has the substantive characteristics and the progress, and the beneficial effects of the implementation are also obvious.

Drawings

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

FIG. 2 is a schematic view of an assembly structure of a suspension loop and an upper clamp;

FIG. 3 is an enlarged view of point A in FIG. 1;

FIG. 4 is a schematic view of a connection structure of a first connection plate and a first connection plate;

fig. 5 is an enlarged view of point B in fig. 1.

In the figure: 1. a base; 2. a top plate; 3. a motor; 4. a screw rod; 5. a nut; 6. a first connecting plate; 7. a threaded pipe; 8. a threaded rod; 9. a second connecting plate; 10. hooking; 11. hanging a ring; 12. an upper clamp; 13. a cable; 14. a pull rod; 15. a spring tube; 16. a sliding plate; 17. a spring; 18. a supporting seat; 19. a tension meter; 20. a clamp seat; 21. a lower clamp; 22. a pulley yoke; 23. a pulley; 24. a pulley groove; 25. a support plate; 26. a limiting block; 27. a graduated scale.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

A cable tensile strength testing device comprises a base 1, a stretching mechanism, a fixing mechanism and a plurality of groups of tensile testing mechanisms. Wherein, fixed establishment includes screwed pipe 7, the inner chamber threaded connection of screwed pipe 7 has threaded rod 8, the bottom of threaded rod 8 is connected with second connecting plate 9 through the bearing, the bottom fixedly connected with couple 10 of second connecting plate 9, the surface cover of couple 10 is equipped with link 11, anchor clamps 12 are gone up to the bottom fixedly connected with of link 11, the top of base 1 is connected with the lower anchor clamps 21 with last anchor clamps 12 looks adaptation through anchor clamps seat 20, goes up and is connected with cable 13 between anchor clamps 12 and the lower anchor clamps 21, presss from both sides tight cable 13's upper and lower both ends respectively through last anchor clamps 12 and lower anchor clamps 21.

Each group of tension testing mechanism comprises a pull rod 14, a spring tube 15, a supporting seat 18 and a tension meter 19, the lower end of the spring tube 15 is fixedly connected with the supporting seat 18, the supporting seat 18 and the tension meter 19 are fixedly installed on the base 1, the tension meter 19 is located in the supporting seat 18, the top of the pull rod 14 is fixedly connected with the second connecting plate 9, the bottom of the pull rod penetrates through the inner cavity of the spring tube 15 and is fixedly connected with a sliding plate 16, and a spring 17 is fixedly connected between the sliding plate 16 and the tension meter 19.

The stretching mechanism comprises a top plate 2, a motor 3 is fixedly mounted at the bottom of the top plate 2, an output shaft of the motor 3 is fixedly connected with a lead screw 4 through a coupler, and a screw 5 is sleeved on the lead screw 4. The bottom end of the screw rod 4 is fixedly connected with a limiting block 26, the screw nut 5 is fixedly connected with the first connecting plate 6, and the threaded pipe 7 is fixedly connected to the bottom of the first connecting plate 6.

The pulley yoke 22 is fixedly connected to both ends of the first connecting plate 6, a pulley 23 is movably connected to an inner cavity of the pulley yoke 22 through a rotating shaft, a supporting plate 25 is fixedly connected between both ends of the base 1 and the top plate 2, and pulley grooves 24 matched with the pulley 23 are respectively formed in opposite sides of the supporting plate 25. Through the cooperation use of pulley yoke 22, pulley 23, pulley groove 24 and backup pad 25, can play spacing effect to first connecting plate 6 for first connecting plate 6 moves more steadily smoothly. The two sides of the bottom of the top plate 2 are provided with scales 27, and the bottoms of the scales 27 are flush with the bottoms of the pulley grooves 24. Through the setting of scale 27, can measure the height that first connecting plate 6 rose, very directly perceived and convenient, the user only need the record before rising and after the rise the scale can, have fine practicality.

The utility model discloses an operation process:

the first step is as follows: the number of stations is determined as required for the test, the diameter of the cable 13 is recorded and the initial height of the first web 6 is recorded by looking at the scale 27.

The second step is that: fixing two ends of the cable 13 on the upper clamp 12 and the lower clamp 21 respectively to keep the cable 13 in a natural straightening state, wherein the spring 17 is in a natural stretching state;

the third step: starting the motor 3, driving the screw rod 4 to rotate by an output shaft of the motor 3 through the coupler, enabling the screw 5 to ascend by the rotation of the screw rod 4, driving the first connecting plate 6 to ascend by the screw rod 5, driving the pulley 23 to roll in an inner cavity of the pulley groove 24 by the first connecting plate 6 through the pulley frame 22, limiting the first connecting plate 6 by the pulley 23 and the pulley groove 24, driving the second connecting plate 9 to ascend by the first connecting plate 6 through the threaded pipe 7 and the threaded rod 8, driving the upper clamp 12 to ascend by the second connecting plate 9 through the hook 10 and the hanging ring 11, and stretching the cable 13 by the upper clamp 12; the second connecting plate 9 simultaneously stretches the pull rod 14, the pull rod 14 stretches the spring 17 through the sliding plate 16, the spring 17 is connected with the tension meter 19, and the tension meter 19 can measure the tension of the pulled cable 13;

the fourth step: when the cable 13 is broken in each group of tension testing mechanisms, the tension value on the tension meter 19 and the corresponding height of the first connecting plate 6 on the graduated scale 27 are recorded in sequence, calculation can be performed, the purpose of completing the tensile strength of the cable in batches at multiple stations is achieved, and the cable pulling device is very convenient and fast to use and convenient to operate.

In summary, the following steps: this cable tensile strength test equipment, through first connecting plate 6, screwed pipe 7, threaded rod 8 and second connecting plate 9's cooperation is used, the user can twist threaded rod 8 to screwed pipe 7's inner chamber, can be connected first connecting plate 6 and second connecting plate 9 through screwed pipe 7 and threaded rod 8, and then can increase cable tensile strength test equipment's test station, and convenient to detach and installation, to with different types and batch cable, it is very convenient to detect, time saving and labor saving, the efficiency of detection has been improved greatly, and convenient to use person adjusts and dismantles, structural design is simple reasonable, bring convenience for the user, it only has a station to have solved current cable tensile strength test equipment, the problem that detection efficiency is low.

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.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a cable tensile strength test equipment, includes base (1), tension mechanism and fixed establishment, its characterized in that: the tension testing device is characterized by further comprising a plurality of groups of tension testing mechanisms, each fixing mechanism comprises a threaded pipe (7), a threaded rod (8) is connected to the inner cavity of each threaded pipe (7) in a threaded mode, the bottom of each threaded rod (8) is connected with a second connecting plate (9) through a bearing, a hook (10) is fixedly connected to the bottom of each second connecting plate (9), a hanging ring (11) is sleeved on the surface of each hook (10), an upper clamp (12) is fixedly connected to the bottom of each hanging ring (11), the top of the base (1) is connected with a lower clamp (21) matched with the upper clamp (12) through a clamp seat (20), and a cable (13) is connected between the upper clamp (12) and the lower clamp (21); each group of tension testing mechanism comprises a pull rod (14), a spring tube (15), a supporting seat (18) and a tension meter (19), the lower end of the spring tube (15) is fixedly connected with the supporting seat (18), the supporting seat (18) and the tension meter (19) are fixedly installed on the base (1), the tension meter (19) is located in the supporting seat (18), the top of the pull rod (14) is fixedly connected with the second connecting plate (9), the bottom of the pull rod penetrates through the inner cavity of the spring tube (15) and is fixedly connected with a sliding plate (16), and a spring (17) is fixedly connected between the sliding plate (16) and the tension meter (19).

2. The cable tensile strength testing apparatus of claim 1, wherein: the stretching mechanism comprises a top plate (2), a motor (3) is fixedly mounted at the bottom of the top plate (2), an output shaft of the motor (3) is fixedly connected with a lead screw (4) through a coupler, a screw (5) is sleeved on the lead screw (4), the screw (5) is fixedly connected with a first connecting plate (6), and a threaded pipe (7) is fixedly connected to the bottom of the first connecting plate (6).

3. The cable tensile strength testing apparatus of claim 2, wherein: and the bottom end of the screw rod (4) is fixedly connected with a limiting block (26).

4. A cable tensile strength testing apparatus according to claim 3, wherein: the equal fixedly connected with pulley yoke (22) in both ends of first connecting plate (6), the inner chamber of pulley yoke (22) has pulley (23) through pivot swing joint, backup pad (25) have been linked firmly between the both ends of base (1) and roof (2), pulley groove (24) with pulley (23) looks adaptation are seted up respectively to the double-phase offside of backup pad (25).

5. The cable tensile strength testing apparatus according to claim 4, wherein: and scales (27) are arranged on two sides of the bottom of the top plate (2), and the bottoms of the scales (27) are flush with the bottoms of the pulley grooves (24).