CN211652330U

CN211652330U - Elevator steel cable fatigue strength detection device

Info

Publication number: CN211652330U
Application number: CN202020273030.0U
Authority: CN
Inventors: 刘春�; 夏蓉花
Original assignee: Jiangsu College of Safety Technology
Current assignee: Jiangsu College of Safety Technology
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2020-10-09
Anticipated expiration: 2030-03-06

Abstract

The utility model discloses an elevator steel cable fatigue strength detection device, the on-line screen storage device comprises a base, the up end fixed mounting of base has the casing, hinge connection has the door plant of leading to the clear on the positive lateral wall of casing, be provided with two fixed plates in the casing, two the impartial interval in one side that the fixed plate is relative has seted up a plurality of spouts, every equal horizontal fixed mounting has the slide bar in the spout, every equal sliding connection has the slider on the slide bar, every all the cover is equipped with spring, every on the slide bar the one end fixed mounting of spring is on the inner wall of spout, every the other end fixed mounting of spring is on the slider, the lower terminal surface fixed mounting of slider has the thread bush. The utility model discloses, be bent type by the fixed tooth's socket of L type, increased the frictional force between the fixed tooth's socket of L type and the steel cable, strengthened this detection device's stability, avoided the steel cable to take place to collapse from at the in-process both ends that detect.

Description

Elevator steel cable fatigue strength detection device

Technical Field

The utility model relates to an elevator steel cable technical field especially relates to an elevator steel cable fatigue strength detection device.

Background

As the name suggests, the elevator steel wire rope is the steel wire rope used on the elevator, the most used small-sized passenger elevator, and in the residential district of commercial buildings, the specification and the model of the elevator steel wire rope are generally 8 × 19S + FC-8mm and 8 × 19S + FC-10 mm. The existing detection equipment for detecting the fatigue strength of the elevator steel cable is relatively large in size and complex in operation, and meanwhile, when the steel cable is detected, due to the fact that no protective measures are adopted, in the moment that the steel cable is broken, splashed metal fragments easily cause damage to a human body.

In order to solve the problem, patent number CN208297272U discloses an elevator steel cable fatigue strength detection device, including detection device base, detection device support frame, mobile station, lower mounting, hydraulic telescoping post mounting bracket, last mounting, crossbeam and safety cover, the top surface both ends symmetry of detection device base is provided with two detection device support frames, the utility model relates to an elevator steel cable fatigue strength detection device is simple structure, small, conveniently controls under the prerequisite, can avoid causing the problem of injury to the human body at the cracked metal debris that produces in the twinkling of an eye of steel cable.

However, in the specific use process of the detection device, the steel cable is not fixed firmly enough only by the rotating handle, the threaded sliding rod and the locking block, and the steel cable is easy to burst out of the fixing piece and is not stable enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art "but above-mentioned detection device is in specific use, only fixes the steel cable through rotation handle, screw thread slide bar and latch segment still firm inadequately, and the steel cable bursts out from the mounting very easily, the defect of stability inadequately" to provide an elevator steel cable fatigue strength detection device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a fatigue strength detection device for an elevator steel cable comprises a base, wherein a shell is fixedly arranged on the upper end face of the base, a transparent door plate is hinged on the side wall of the front face of the shell, two fixing plates are arranged in the shell, a plurality of sliding grooves are formed in one opposite side of each fixing plate at equal intervals, sliding rods are transversely and fixedly arranged in each sliding groove, each sliding rod is connected with a sliding block in a sliding manner, each sliding rod is sleeved with a spring, one end of each spring is fixedly arranged on the inner wall of each sliding groove, the other end of each spring is fixedly arranged on each sliding block, a threaded sleeve is fixedly arranged on the lower end face of each sliding block, a plurality of weighing plates corresponding to the threaded sleeves are fixedly arranged on one opposite sides of the two fixing plates, two clamping plates are fixedly arranged at the lower ends of the weighing plates and the threaded sleeves respectively, and an L-shaped fixed tooth socket is formed in one, every all transversely alternate threaded rod in the threaded bush, threaded rod threaded connection is in the threaded bush, the one end of threaded rod is rotated and is connected on the weighing plate, the other end fixed mounting of threaded rod has the rotation handle, be provided with tension mechanism in the casing.

Preferably, a steel cable is arranged between the two L-shaped fixed tooth grooves, and the upper end and the lower end of the steel cable are respectively arranged in the two L-shaped fixed tooth grooves.

Preferably, the upper fixing plate is slidably connected to the inner wall of the housing, and the lower fixing plate is fixedly mounted on the bottom end face of the housing.

Preferably, the tension mechanism comprises two servo motors, the output end of each servo motor is fixedly provided with a driving wheel, and the inner wall of the shell is fixedly and symmetrically provided with two groups of steering mechanisms.

Preferably, each group of steering mechanisms comprises a second steering wheel and a first steering wheel, the driving wheel, the second steering wheel and the first steering wheel are in transmission connection through a tension rope, one end of the tension rope is fixedly installed on the driving wheel, and the other end of the tension rope is fixedly installed on the upper end face of the fixing plate.

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

the utility model provides a fixed tooth's socket of L type is bent type, has increased the frictional force between the fixed tooth's socket of L type and the steel cable, has strengthened this detection device's stability, has avoided the steel cable to take place to collapse away at the in-process both ends that detect, simultaneously, the elasticity that the spring produced after being compressed can counteract the slider for meshing is more stable between thread bush and the threaded rod, has avoided appearing not hard up between threaded rod and the thread bush.

Drawings

Fig. 1 is a schematic front structural view of an elevator steel cable fatigue strength detecting device provided by the present invention;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

FIG. 3 is a schematic side view of a clamping plate of the elevator steel cable fatigue strength detecting device according to the present invention;

fig. 4 is a front structural cross-sectional view of a clamping plate in the elevator steel cable fatigue strength detecting device provided by the utility model.

In the figure: the device comprises a shell 1, a servo motor 2, a tension rope 3, a first steering wheel 4, a fixing plate 5, a second steering wheel 6, a steel cable 7, a driving wheel 8, a 9L-shaped fixing tooth groove, a base 10, a clamping plate 11, a threaded rod 12, a spring 13, a sliding rod 14, a sliding block 15, a rotating handle 16 and a threaded sleeve 17.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-4, an elevator steel cable fatigue strength detecting device comprises a base 10, a housing 1 is fixedly installed on the upper end surface of the base 10, a transparent door panel is hinged on the side wall of the front surface of the housing 1, two fixing plates 5 are arranged in the housing 1, the upper fixing plate 5 is slidably connected to the inner wall of the housing 1, the lower fixing plate 5 is fixedly installed on the bottom end surface of the housing 1, a plurality of sliding grooves are equally spaced on one opposite side of the two fixing plates 5, a sliding rod 14 is transversely and fixedly installed in each sliding groove, a sliding block 15 is slidably connected to each sliding rod 14, a spring 13 is sleeved on each sliding rod 14, one end of each spring 13 is fixedly installed on the inner wall of each sliding groove, the other end of each spring 13 is fixedly installed on the sliding block 15, a threaded sleeve 17 is fixedly installed on the lower end surface of each sliding block 15, a plurality of weighing plates corresponding to the, the lower ends of the weighing plate and the threaded sleeve 17 are respectively fixedly provided with two clamping plates 11, one opposite sides of the two clamping plates 11 are respectively provided with an L-shaped fixed tooth slot 9, a steel cable 7 is arranged between the two L-shaped fixed tooth slots 9, the upper end and the lower end of the steel cable 7 are respectively arranged in the two L-shaped fixed tooth slots 9, a threaded rod 12 is transversely inserted in each threaded sleeve 17, the threaded rod 12 is in threaded connection with the threaded sleeve 17, one end of the threaded rod 12 is rotatably connected to the weighing plate, the other end of the threaded rod 12 is fixedly provided with a rotating handle 16, a tension mechanism is arranged in the shell 1 and comprises two servo motors 2, the output end of each servo motor 2 is fixedly provided with a driving wheel 8, two steering mechanisms are fixedly and symmetrically fixed on the inner wall of the shell 1, each steering mechanism comprises a second steering wheel 6 and a first steering wheel 4, and the driving wheel 8, The second steering wheel 6 is in transmission connection with the first steering wheel 4 through a tension rope 3, one end of the tension rope 3 is fixedly installed on the driving wheel 8, and the other end of the tension rope 3 is fixedly installed on the upper end face of the fixing plate 5.

In the utility model, when the user uses the device, two ends of the steel cable are respectively placed in two L-shaped fixed tooth sockets 9, then the rotating handle 16 is rotated to drive the threaded rod 12 to rotate, so that the threaded sleeve 17 slides in the chute through the slider 15, so that the two clamping plates 11 move relatively, the two clamping plates 11 clamp two ends of the steel cable through the L-shaped fixed tooth sockets 9, the L-shaped fixed tooth sockets 9 are curved, the friction force between the L-shaped fixed tooth sockets 9 and the steel cable is increased, the stability of the detection device is enhanced, the phenomenon that two ends of the steel cable are collapsed in the detection process is avoided, meanwhile, the elastic force generated after the spring 13 is compressed can react on the slider 15, the meshing between the threaded sleeve 17 and the threaded rod 12 is more stable, the phenomenon that the threaded rod 12 and the threaded sleeve 17 are loosened is avoided, the servo motor 2 is started, the servo motor 2 winds the tension rope 3 through the output end, further, the other end of the tension rope 3 pulls up the fixing plate 5, so that the fixing plate 5 detects the tension of the steel cable 7.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The elevator steel cable fatigue strength detection device comprises a base (10) and is characterized in that a shell (1) is fixedly installed on the upper end face of the base (10), a transparent door plate is connected to the side wall of the front face of the shell (1) in a hinged mode, two fixing plates (5) are arranged in the shell (1), a plurality of sliding grooves are formed in one side, opposite to the two fixing plates (5), of each fixing plate at equal intervals, sliding rods (14) are transversely and fixedly installed in each sliding groove, a sliding block (15) is connected to each sliding rod (14) in a sliding mode, springs (13) are sleeved on each sliding rod (14), one end of each spring (13) is fixedly installed on the inner wall of each sliding groove, the other end of each spring (13) is fixedly installed on the corresponding sliding block (15), and thread sleeves (17) are fixedly installed on the lower end face of each sliding block (, two one side fixed mounting that fixed plate (5) is relative has a plurality of weighing plates corresponding with thread bush (17), the lower extreme of weighing plate and thread bush (17) is fixed mounting respectively has two grip blocks (11), two the fixed tooth's socket of L type (9), every all transversely alternate threaded rod (12) in thread bush (17), threaded rod (12) threaded connection is in thread bush (17), the one end rotation of threaded rod (12) is connected on weighing plate, the other end fixed mounting of threaded rod (12) has rotation handle (16), be provided with tension mechanism in casing (1).

2. The elevator steel cable fatigue strength detection device according to claim 1, wherein a steel cable (7) is disposed between the two L-shaped fixing tooth grooves (9), and upper and lower ends of the steel cable (7) are disposed in the two L-shaped fixing tooth grooves (9), respectively.

3. The elevator rope fatigue strength detecting device according to claim 1, wherein the upper fixing plate (5) is slidably attached to the inner wall of the housing (1), and the lower fixing plate (5) is fixedly attached to the bottom end surface of the housing (1).

4. The elevator steel cable fatigue strength detection device according to claim 1, wherein the tension mechanism comprises two servo motors (2), an amzuron driving wheel (8) is fixed at an output end of each servo motor (2), and two sets of steering mechanisms are symmetrically fixed on an inner wall of the housing (1).

5. The elevator steel cable fatigue strength detection device according to claim 4, wherein each group of steering mechanisms comprises a second steering wheel (6) and a first steering wheel (4), the driving wheel (8), the second steering wheel (6) and the first steering wheel (4) are in transmission connection through a tension rope (3), one end of the tension rope (3) is fixedly installed on the driving wheel (8), and the other end of the tension rope (3) is fixedly installed on the upper end face of the fixing plate (5).