CN211061183U - Fatigue test device of steel belt for elevator - Google Patents
Fatigue test device of steel belt for elevator Download PDFInfo
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- CN211061183U CN211061183U CN201922323464.7U CN201922323464U CN211061183U CN 211061183 U CN211061183 U CN 211061183U CN 201922323464 U CN201922323464 U CN 201922323464U CN 211061183 U CN211061183 U CN 211061183U
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Abstract
The utility model discloses a fatigue test device of steel band for elevator, including frame, straining device, bending mechanism and drive mechanism install in the frame, and the steel band one end that awaits measuring is connected on drive mechanism, holds to hang its other end behind the straining device and connects at bending mechanism terminal, drive mechanism drives the steel band that awaits measuring and is reciprocating motion to make straining device utilize its gravity to hang and realize the up-and-down motion on the steel band that awaits measuring. Compared with the prior art, the utility model provides a fatigue test device of steel band for elevator's advantage is: the bending times of the test are increased to 1000 thousands of times, and the test efficiency is greatly improved; the effective length of the test section is increased, so that sampling test is facilitated; a plurality of effect test sections are added, so that a comparison test can be carried out, and the wrap angle is ensured to meet the standard requirement; the potential safety hazard of swing arm type and circular motion is avoided.
Description
Technical Field
The utility model relates to a fatigue test device specifically is fatigue test device of steel band for elevator belongs to machinery.
Background
With the development of society and the increase of population density, elevators have become indispensable basic equipment in our daily life. The traditional traction mode of the steel wire rope is that the steel wire rope is arranged in a rope groove with a V-shaped section, and the pressure on the surface of the steel wire rope is amplified by the included angle of the V-shaped rope groove, so that the friction force between the steel wire rope and a traction wheel is increased, and the traction force enough for lifting a car can be obtained. The powerful overstock that metal and metal direct contact produced to and the atress is uneven between the steel strand, not only make wire rope local destruction appear easily, appear the defect of disconnected silk disconnected strand, still can make the race of driving sheave receive wearing and tearing, influence operating performance, if can not in time change, the condition of swift current car can appear even.
The surface layer of the novel composite steel belt is made of wear-resistant polyurethane, the inner layer is wrapped by the plurality of high-strength steel wires, the polyurethane surface layer can provide enough friction force, direct contact between metals is avoided, steel strands are protected, and the traction sheave is also protected. The steel strands in the steel wires are transversely arranged, so that the steel wires bear tension uniformly, and severe working conditions caused by uneven stress among the steel strands are reduced to a greater extent. Due to the structural advantages, the composite steel belt can reach the service life of 20 years.
Therefore, the bending fatigue test is needed before use, and the bending fatigue test equipment is used.
The existing bending fatigue testing equipment mainly has two types. The other is a wheel disc type bending test device, and the motor drives the wheel disc to rotate so as to achieve the bending effect. The other type is swing arm type test equipment, and a swing arm is driven by a motor so as to drive a steel belt to reciprocate.
The problem of the wheel disc type bending test device is that:
①, because the traditional balancing weight is replaced by the strain sensor, when the motor drives the wheel disc to rotate, because the test frequency reaches 1000 ten thousand times, the steel belt can go out and extend in the test process, shake of the steel belt in the test process, the service life of the shear strain sensor and the like, and the test period and the workload of daily maintenance are increased;
②, in addition, the wrap angle between the steel belt and the bending wheel is too small to achieve the simulation effect of the actual use of the elevator steel belt, if the wrap angle is increased, the bending wheel is too small, the number of the wheel disc edges is reduced, and the stability of the device is affected;
③, the testing device, the testing section can not be enough to take samples;
④, because the test times are more than 1000 ten thousand, the bending mechanism of the device needs too long test period and low efficiency, and if the number of the bending wheels is increased, the wrap angle can not meet the standard requirement.
The problem of the swing arm type equipment is that:
①, the test section of the swing arm type equipment is shorter, which is not beneficial to the sampling test;
②, if the length of the test segment is increased, the circumference of the swing arm which needs to be operated is too large, and the potential safety hazard of equipment use exists.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned problem that prior art exists, the utility model aims at providing a safe effectual fatigue test device of steel band for elevator.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:
a fatigue testing device for a steel belt for an elevator comprises a rack, a tensioning mechanism, a bending mechanism and a transmission mechanism, wherein the tensioning mechanism, the bending mechanism and the transmission mechanism are installed on the rack; the steel belt to be tested is wound on the tensioning guide wheel, and two ends of the steel belt to be tested are respectively connected with the bending mechanism and the transmission mechanism; the bending mechanism comprises a fixed plate arranged on the rack and a plurality of bending guide wheels arranged on the fixed plate, and the steel belt to be tested is sequentially wound according to the arrangement sequence of the bending guide wheels.
As a further improvement of the above technical solution:
the fixed plate is vertically installed on the rack, one end of the bending guide wheel is fixed on the fixed plate and is perpendicular to the fixed plate, and the bending guide wheel is horizontally fixed on the rack.
The frame is a frame structure, and specifically is a metal support that can place in the bottom surface horizontally, straining device and bending mechanism arrange inside the frame, drive mechanism is located the frame top.
The transmission mechanism comprises a chain wheel seat, chain components, a reciprocating component and guide pillars, wherein the chain wheel seat, the chain components, the reciprocating component and the guide pillars are arranged on the top of the rack, the chain wheel seat is a pair of chain seats and symmetrically arranged at two ends of the top of the rack, the chain of the chain components is wound on the chain wheel of the chain wheel seat, the guide pillars are a pair of guide pillars and symmetrically arranged at two sides of the top of the rack, the reciprocating component is arranged on the guide pillars, and the reciprocating component is connected with the chain components and reciprocates on the guide pillars through the rotation.
The chain wheel seat comprises a seat body and a chain wheel, the seat body is formed by bending two ends of a metal plate at the same side, two ends of the seat body are erected on two sides of the frame, and the chain wheel is installed in the center of the seat body.
The chain assembly includes a chain and chain blocks fixedly mounted on the chain, the chain blocks being pinned to the shuttle assembly.
The transmission mechanism further comprises a speed reducing motor, and the speed reducing motor is installed at one end of the top of the rack and is in transmission connection with the chain wheel seat on the same side of the speed reducing motor.
The bending guide wheels are not all at the same height on the fixing plate.
Compared with the prior art, the utility model provides a pair of fatigue test device of steel band for elevator's advantage as follows:
①, increasing the bending times of the test to 1000 ten thousand times, and greatly improving the test efficiency;
②, increasing the effective length of the test section, which is beneficial to sampling test;
③, a plurality of effect test sections are added, so that a comparison test can be carried out, and the wrap angle is ensured to meet the standard requirement;
④, the potential safety hazard of swing arm type and circular motion is avoided.
Drawings
Fig. 1 is a schematic view of a fatigue testing device for an elevator steel belt according to the present invention;
FIG. 2 is an internal structure view of a fatigue testing device for an elevator steel belt according to the present invention;
FIG. 3 is a schematic diagram of a fatigue testing device for an elevator steel belt according to the present invention;
wherein, 1, a frame; 2. a tensioning mechanism; 21. loading; 22. tensioning guide wheels; 3. a bending mechanism; 31. a fixing plate; 32. bending the guide wheel; 4. a transmission mechanism; 41. a sprocket seat; 411. a base body; 412. a sprocket; 42. a chain assembly; 421. a chain; 422. a chain block; 43. a shuttle assembly; 44. a guide post; 45. a speed reducing motor.
Detailed Description
The present invention will be described in more detail and fully with reference to the following examples and comparative examples.
As shown in fig. 1 to 3, the fatigue testing device for the steel belt for the elevator of the embodiment includes a frame 1, a tensioning mechanism 2, a bending mechanism 3 and a transmission mechanism 4, wherein the tensioning mechanism 2, the bending mechanism 3 and the transmission mechanism 4 are installed on the frame 1, one end of the steel belt to be tested is connected to the transmission mechanism 4, the other end of the steel belt to be tested is connected to the tail end of the bending mechanism 3 after the tensioning mechanism 2 is hung, and the transmission mechanism 4 drives the steel belt to be tested to reciprocate, so that the tensioning mechanism 2 is hung on the steel belt to be tested by using the gravity thereof to realize the up-and; the tensioning mechanism 2 comprises a tensioning guide wheel 22 and a load 21 hung on the tensioning guide wheel 22, the steel belt to be tested is wound on the tensioning guide wheel 22, and two ends of the steel belt to be tested are respectively connected with the bending mechanism 3 and the transmission mechanism 4; the bending mechanism 3 comprises a fixing plate 31 installed on the frame 1 and a plurality of bending guide wheels 32 installed on the fixing plate 31, and the steel belt to be tested is sequentially wound according to the arrangement sequence of the bending guide wheels 32.
In this embodiment, the fixing plate 31 is vertically installed on the frame 1, and one end of the bending guide wheel 32 is fixed on the fixing plate 31 and perpendicular to the fixing plate 31, that is, the bending guide wheel 32 is horizontally fixed on the frame 1.
In this embodiment, the frame 1 is a frame structure, specifically, a metal bracket that can be horizontally placed on the bottom surface, the tensioning mechanism 2 and the bending mechanism 3 are placed inside the frame 1, and the transmission mechanism 4 is located at the top of the frame 1.
In this embodiment, the transmission mechanism 4 includes a pair of sprocket seats 41 installed on the top of the frame 1, a pair of chain assemblies 42, a pair of reciprocating assemblies 43 and a pair of guide posts 44, wherein the sprocket seats 41 are symmetrically installed on two ends of the top of the frame 1, a chain 421 of the chain assemblies 42 is wound around a sprocket 412 of the sprocket seats 41, the pair of guide posts 44 are symmetrically installed on two sides of the top of the frame 1, the reciprocating assemblies 43 are installed on the pair of guide posts 44, and the reciprocating assemblies 43 are connected with the chain assemblies 42 and reciprocate on the guide posts 44 by the rotation of the chain assemblies 42.
In this embodiment, the sprocket seat 41 includes a seat body 411 and a sprocket 412, the seat body 411 is formed by bending two ends of a metal plate at the same side, the two ends of the seat body 411 are erected at two sides of the rack 1, and the sprocket 412 is installed at the center of the seat body 411.
In this embodiment, chain assembly 42 includes a chain 421 and chain blocks 422 fixedly mounted on chain 421, and chain blocks 422 are pinned to shuttle assembly 43.
In this embodiment, the transmission mechanism 4 further includes a speed reducing motor 45, and the speed reducing motor 45 is installed at one end of the top of the frame 1 and is in transmission connection with the sprocket seat 41 on the same side as the speed reducing motor 45.
In this embodiment, the bending guide wheels 32 are not all at the same height on the fixing plate 31.
Through the fatigue testing device of the steel belt for the elevator, one end of the steel belt to be tested is connected to the reciprocating assembly 43, the middle of the steel belt to be tested is sequentially wound on the bending guide wheel 32 of the bending mechanism 3, the other end of the steel belt to be tested is fixed on the bending guide wheel 32 positioned at the corner of the fixing plate 31 (namely the tail end of the bending guide wheel 32 group), when the reciprocating assembly 43 of the transmission mechanism 4 drives one end of the steel belt to be tested to do reciprocating motion, the load 21 can maintain the tensioning state of the steel belt to be tested by utilizing the gravity action of the load, so that the steel belt to be tested is always in the bending state, the wrap angle is ensured to meet the standard requirement, and a plurality of effect test sections and; when the number of the bending guide wheels 32 is multiple and the bending guide wheels 32 are wound on the steel strip to be tested, the longer the distance between every two adjacent bending guide wheels 32 is, the longer the effective length of the test section is, and the effective length of the test section can be determined by arranging the bending guide wheels 32.
Finally, it must be said here that: the above embodiments are only used for further detailed description of the technical solutions of the present invention, and should not be understood as limiting the scope of the present invention, and the modifications and adjustments made by those skilled in the art according to the above-mentioned contents of the present invention are all included in the scope of the present invention.
Claims (8)
1. A fatigue testing device for a steel belt for an elevator is characterized by comprising a rack (1), a tensioning mechanism (2), a bending mechanism (3) and a transmission mechanism (4), wherein the tensioning mechanism (2), the bending mechanism (3) and the transmission mechanism (4) are installed on the rack (1), one end of the steel belt to be tested is connected to the transmission mechanism (4), the other end of the steel belt to be tested is connected to the tail end of the bending mechanism (3) after the tensioning mechanism (2) is hung, and the transmission mechanism (4) drives the steel belt to be tested to reciprocate, so that the tensioning mechanism (2) is hung on the steel belt to be tested by utilizing the gravity of the tensioning mechanism to realize up-and-down motion; the tensioning mechanism (2) comprises a tensioning guide wheel (22) and a load (21) hung on the tensioning guide wheel (22), the steel belt to be tested is wound on the tensioning guide wheel (22), and two ends of the steel belt to be tested are respectively connected with the bending mechanism (3) and the transmission mechanism (4); the bending mechanism (3) comprises a fixing plate (31) arranged on the rack (1) and a plurality of bending guide wheels (32) arranged on the fixing plate (31), and the steel belt to be tested is sequentially wound according to the arrangement sequence of the bending guide wheels (32).
2. A fatigue testing device of steel strip for elevator according to claim 1, wherein the fixing plate (31) is vertically installed on the frame (1), and one end of the bending guide wheel (32) is fixed on the fixing plate (31) and is perpendicular to the fixing plate (31), i.e. the bending guide wheel (32) is horizontally fixed on the frame (1).
3. The fatigue testing device of steel belt for elevator according to claim 1, wherein the frame (1) is a frame structure, specifically a metal support which can be horizontally placed on the bottom surface, the tensioning mechanism (2) and the bending mechanism (3) are arranged inside the frame (1), and the transmission mechanism (4) is arranged on the top of the frame (1).
4. The fatigue testing device of an elevator steel strip according to claim 1, wherein the transmission mechanism (4) comprises a pair of chain wheel seats (41) mounted on the top of the frame (1), chain assemblies (42), a pair of reciprocating assemblies (43) and guide posts (44), the chain wheel seats (41) are symmetrically mounted on both ends of the top of the frame (1), the chains (421) of the chain assemblies (42) are wound on the chain wheels (412) of the chain wheel seats (41), the guide posts (44) are symmetrically mounted on both sides of the top of the frame (1), the reciprocating assemblies (43) are mounted on the pair of guide posts (44), and the reciprocating assemblies (43) are connected with the chain assemblies (42) and reciprocate on the guide posts (44) by the rotation of the chain assemblies (42).
5. The fatigue testing device of the steel belt for the elevator as claimed in claim 4, wherein the sprocket seat (41) comprises a seat body (411) and a sprocket (412), the seat body (411) is formed by bending two ends of a metal plate at the same side, the two ends of the seat body (411) are erected at two sides of the frame (1), and the sprocket (412) is installed at the center of the seat body (411).
6. The fatigue testing apparatus of a steel strip for an elevator according to claim 5, wherein the chain assembly (42) comprises a chain (421) and a chain block (422) fixedly installed on the chain (421), and the chain block (422) is pinned to the shuttle assembly (43).
7. The fatigue testing device of steel belt for elevator as claimed in claim 5, wherein the transmission mechanism (4) further comprises a speed reducing motor (45), the speed reducing motor (45) is installed at one end of the top of the frame (1) and is in transmission connection with the sprocket wheel seat (41) at the same side of the frame.
8. A fatigue testing device of a steel strip for elevator according to claim 1, wherein the bending guide rollers (32) are not all at the same height on the fixing plate (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922323464.7U CN211061183U (en) | 2019-12-23 | 2019-12-23 | Fatigue test device of steel belt for elevator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922323464.7U CN211061183U (en) | 2019-12-23 | 2019-12-23 | Fatigue test device of steel belt for elevator |
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| Publication Number | Publication Date |
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| CN211061183U true CN211061183U (en) | 2020-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922323464.7U Active CN211061183U (en) | 2019-12-23 | 2019-12-23 | Fatigue test device of steel belt for elevator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896389A (en) * | 2020-08-11 | 2020-11-06 | 象山旭雯钢铁科技有限公司 | Strength detection device for steel wire rope after strand breakage |
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2019
- 2019-12-23 CN CN201922323464.7U patent/CN211061183U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896389A (en) * | 2020-08-11 | 2020-11-06 | 象山旭雯钢铁科技有限公司 | Strength detection device for steel wire rope after strand breakage |
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