CN111908285A - Wheel type weight for elevator load test and using method - Google Patents
Wheel type weight for elevator load test and using method Download PDFInfo
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- CN111908285A CN111908285A CN202010890965.8A CN202010890965A CN111908285A CN 111908285 A CN111908285 A CN 111908285A CN 202010890965 A CN202010890965 A CN 202010890965A CN 111908285 A CN111908285 A CN 111908285A
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- 238000012360 testing method Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000003825 pressing Methods 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 description 11
- 238000001514 detection method Methods 0.000 description 10
- 238000012545 processing Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 238000012827 research and development Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012372 quality testing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000011076 safety test Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0037—Performance analysers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G21/00—Details of weighing apparatus
- G01G21/26—Counterweights; Poise-weights; Sets of weights; Holders for the reception of weights
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses a wheel type weight for an elevator load test and a using method thereof, wherein the weight comprises a weight body, the weight body protrudes upwards along the vertical direction to form a positioning boss, a positioning step is formed on the outer side surface of the positioning boss, a lifting assembly capable of reciprocating along the vertical direction is arranged on the positioning step, a rocker assembly is rotatably arranged on the positioning step, and the rocker assembly rotates to drive the lifting assembly to do linear reciprocating motion along the vertical direction.
Description
Technical Field
The invention relates to the field of special equipment detection, in particular to a wheel type weight for an elevator load test and a using method thereof.
Background
Elevators are transportation equipment for transporting passengers or goods up and down in high-rise buildings, and due to the hysteresis of standard regulations and the lack of supervision experience, old elevators all over the country frequently cause direct or indirect accidents due to insufficient braking force and traction force in recent years.
The existing elevator operation needs to do the following steps: 1. traction capacity test: the method comprises a balance coefficient test, an idle load ascending test, a static load test and a forced stopping test under 125% rated load; 2. and (4) safety test: the method comprises a speed limiter-safety gear action test, a buffer load and a reset test; 3. and (3) operation reliability test: running speed test, running test, overload test and the like; 4. and detecting and confirming the performance of the whole machine.
The tests need to place loads into the elevator, then loads with different weights are added according to the test requirements, for example, when a worker performs a 125% test on the elevator, the worker firstly moves a weight with 40% of the elevator load into the elevator, then operates the elevator to record data, then tests 45%, 50% and 60% of the elevator load and records the data to obtain a balance coefficient result of the elevator, and finally performs 100% and 125% load emergency braking tests to obtain an experiment result. The weight is moved in the test process, which is a complicated process, and the working efficiency is reduced. The existing detection generally realizes the carrying of the load through manpower, so that the efficiency is not high, the cost is very high, and the efficiency of the elevator inspection can be greatly reduced.
To this end, a wheeled weight for elevator load tests is needed to solve the above problems.
Disclosure of Invention
In view of the above, the wheel type weight provided by the invention has the advantages that the structure is simple, the operation is convenient, the product research and development cost is greatly reduced, the market is larger, the labor intensity of elevator detection personnel can be reduced, the safety of the elevator detection personnel in the detection process is improved, and meanwhile, the product structure is simple and the production and the processing are convenient.
The utility model provides a wheeled weight for elevator load test, includes the weight body, the weight body is upwards protruding along vertical direction and is formed the location boss, location boss lateral surface is formed with the location step, be provided with the lifting unit that can follow vertical direction reciprocating motion on the location step, rotatable rocker subassembly that is provided with on the location step, rocker subassembly rotary motion and then drive the lifting unit and be straight reciprocating motion along vertical direction.
Furthermore, the lifting assembly comprises a pressing plate arranged on the positioning step, a linear guide rod fixedly connected with the pressing plate and capable of reciprocating along the vertical direction, and a universal wheel arranged at the end part of the linear guide rod.
Furthermore, the bottom corner of the weight body is provided with a notch, and the positioning step is downwards provided with a mounting hole for mounting the linear guide rod along the vertical direction.
Furthermore, the location boss is two and two location boss parallel arrangement each other, and the lateral surface of two location bosses all is formed with the location step.
Furthermore, the pressing plates are two and the two pressing plates are respectively arranged on the two positioning steps, and two ends of the two pressing plates are respectively provided with a linear guide rod.
Furthermore, four corners of the bottom of the weight body are provided with notches for mounting universal wheels, and the lateral surface of the weight body is of an inverted convex structure.
Further, the rocker assembly comprises a rocker horizontally penetrating through the two positioning bosses, cams respectively arranged at the two end parts of the rocker and a rotating handle arranged at the middle part of the rocker.
Further, the cam is fixedly arranged at the end part of the rocker and is arranged between the cam and the pressing plate in a rotating fit mode, and a limiting sleeve used for axially limiting the cam is further arranged at the end part of the rocker.
Further, a circular flange linear bearing for mounting the linear guide rod is arranged in the mounting hole.
Further, the use method of the wheel type weight comprises the following steps:
s1: checking whether parts on the weight are loosened and whether the universal wheel can normally rotate;
s2: a wrench is used for moving the rotating handle to rotate 180 degrees, so that the weight body is lifted upwards and the universal wheel is contacted with the ground;
s3: the end part of the rotating handle is bound by a steel wire rope and the weight body is pulled to the specified position of the elevator;
s4: the spanner is used for reversely rotating for 180 degrees, so that the universal wheel retracts into the notch, and the bottom of the weight body is contacted with the ground.
The invention has the beneficial effects that:
the wheel type weight is simple in structure and convenient to operate, greatly reduces the product research and development cost, has a larger market, can reduce the labor intensity of elevator detection personnel, improves the safety of the elevator detection personnel in the detection process, and is simple in structure and convenient to produce and process.
Drawings
The invention is further described below with reference to the following figures and examples:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic perspective view of the present invention;
FIG. 4 is a schematic view of the weight of the present invention falling to the ground;
FIG. 5 is a schematic view of the present invention with the weight off the ground;
fig. 6 is a front view of the cam of the present invention.
Detailed Description
FIG. 1 is a schematic view of the overall structure of the present invention; FIG. 2 is a cross-sectional view of the present invention; FIG. 3 is a schematic perspective view of the present invention; FIG. 4 is a schematic view of the weight of the present invention falling to the ground; FIG. 5 is a schematic view of the present invention with the weight off the ground; fig. 6 is a front view of the cam of the invention, and as shown in the figure, a wheel type weight for elevator load test comprises a weight body 1, wherein the weight body 1 protrudes upwards along the vertical direction to form a positioning boss 11, a positioning step 12 is formed on the outer side surface (the outer side surface is shown in fig. 3) of the positioning boss 11, a lifting assembly capable of reciprocating along the vertical direction is arranged on the positioning step 12, a rocker assembly is rotatably arranged on the positioning step, and the rocker assembly rotates to drive the lifting assembly to do linear reciprocating motion along the vertical direction. This technical scheme's wheeled weight, simple structure, the operation of being convenient for, very big reduction the cost of product research and development, possess bigger market, can reduce elevator measurement personnel's intensity of labour, improved the security in the elevator measurement personnel testing process, product simple structure is convenient for produce and process simultaneously.
In this embodiment, the lifting assembly includes a pressing plate 21 disposed on the positioning step, a linear guide rod 22 fixedly connected to the pressing plate and capable of reciprocating in a vertical direction, and a universal wheel 23 disposed at an end of the linear guide rod 22. The material of clamp plate is selected to HT250, can guarantee not being pressed under disconnected prerequisite, certain wearability still, the material that the single wheel of universal wheel 23 chooseed for use is polyurethane, adopt fixed connection's mode setting between clamp plate 21 and the straight line guide arm 22, straight line guide arm 22 bottom is equipped with universal wheel 23, as shown in fig. 3, the clamp plate is installed on location step face 12 and can drive straight line guide arm 22 along vertical direction (be the upper and lower direction in fig. 3) move, during normal condition, universal wheel 23 does not contact with ground (or just contact can not support yet), when needs are carried, clamp plate 21 downstream makes universal wheel 23 stretch out downwards, weight body 1 breaks away from ground take the altitude, universal wheel 23 plays the support and can conveniently carry this moment, make things convenient for workman's operation, promote work efficiency.
In this embodiment, the bottom corner of the weight body 1 is provided with a notch 13, and the positioning step 12 is provided with a mounting hole for mounting the linear guide rod 22 downwards along the vertical direction. All processing on four corners in weight body bottom forms the opening structure (this technical scheme is the cuboid structure) that is used for installing the universal wheel, and 1 two tip of weight body form the mounting hole structure along vertical direction processing for installation straight line guide arm 22, overall structure is simple, and processing is convenient.
In this embodiment, the positioning bosses 11 are two and two positioning bosses 11 are parallel to each other, and the positioning steps 12 are formed on the outer side surfaces of the two positioning bosses 11. The upper end of the weight body 1 is upwards protruded to form two positioning bosses 11 which are arranged in parallel, the outer side surfaces of the two positioning bosses 11 (namely the end surface 12 of the installation pressing plate in fig. 3) are symmetrically arranged relative to the symmetrical axis of the weight body 1 (the vertical central line of the upper surface of the weight body 1), the whole structure is relatively regular, and the processing and forming are convenient.
In this embodiment, the two pressing plates 21 are respectively arranged on the two positioning steps 12, and the two ends of the two pressing plates 21 are respectively provided with the linear guide rods 22. Linear guide rod 22 is four total and evenly arranges two tip at two clamp plates 21 respectively to this forms effectual four strong points, when the heavy object contact ground, is convenient for adjust the terrain clearance of universal wheel, can avoid a certain universal wheel to contact ground, causes the damage to other parts, and overall structure atress is more even, promotes product life.
In this embodiment, all be provided with the opening 13 that is used for installing the universal wheel on 1 bottom four angles of weight body, 1 side of weight body is "protruding" style of calligraphy structure of falling, and 1 side of weight body processing forms a plurality of mounted positions, the installation weight spare part of being convenient for.
In this embodiment, the rocker assembly includes a rocker 31 horizontally passing through the two positioning bosses 11, cams 33 respectively disposed at two ends of the rocker 31, and a rotating handle 32 disposed at the middle of the rocker 31. According to ergonomic, this technical scheme the axle center of cam is 35mm apart from the distance of 1 upper surface of weight, more is favorable to reducing the focus of device, and the rocker intermediate position is equipped with twist grip 32, makes things convenient for in the rotation operation, adopts the key to connect the cooperation between cam 33 and the rocker 31.
In this embodiment, the cam 33 is fixedly disposed at the end of the rocker 31, the cam 33 is disposed in a rotation fit with the pressure plate 21, and a limiting sleeve 34 for axially limiting the cam is further disposed at the end of the rocker 31. The cam is made of 20Gr, carburized and then quenched to 58-63 HRC, the thickness of a carburized layer is about 0.8-1.2 mm, the cam can be made soft inside and hard outside, the service life of the cam is prolonged, the cam 33 is a four-stage cam, and a push stage and a return stage are separated by two static stages. In addition, in the pushing stage and the returning stage, the motion law of the driven part is constant-speed motion, so that the whole cam 33 can be in smooth transition, the heavy object is slowly jacked up, and the stability of the heavy object in the lifting and descending processes is greatly improved. The angles occupied by the four stages are all 90 degrees, so that the time used by the two stop stages in the process of one circle of cam rotation is different in the two stop stages, the cam 33 is not easy to enter the return stage, and the heavy object is not easy to fall down after rising to the limit height.
In this embodiment, a circular flange linear bearing 4 for mounting the linear guide rod 22 is disposed in the mounting hole. The circular flange linear bearing 4 is adopted to facilitate the guiding performance of the linear guide rod 22 in the motion lifting and the stability performance in the motion process, and the circular flange linear bearing 4 is arranged at the two ends of the mounting hole.
Because the elevator needs frequent detection, the wheel type weight needs frequent use, and the abrasion to the weight body cannot be avoided in the use process, the wheel type weight is also provided with a sticky mass adjusting sheet. The sticky mass adjusting sheet has various specifications. All need carry out quality testing before the weight uses at every turn, if the unsatisfied mark of quality, then need paste the upper surface at the weight body with gluing the mass control piece. In order to ensure that the center of gravity does not shift, the sticky mass adjusting pieces need to be used in pairs and are symmetrically distributed about the vertical center line of the upper surface of the weight body 1.
In this embodiment, the method for using the wheel-type weight includes the following steps:
s1: checking whether parts on the weight are loosened and whether the universal wheel can normally rotate; before use, weight detection is reduced, and normal use is ensured.
S2: a wrench is used for moving the rotating handle to rotate 180 degrees, so that the weight body 1 is lifted upwards and the universal wheel 23 is contacted with the ground; adopt spanner or other instrument rotating handle to rotate, make the synchronous downstream of straight line guide arm during the rotation, until universal wheel and ground contact and make weight body 1 upwards rise a certain distance.
S3: the end part of the rotating handle 32 is bound by a steel wire rope, and the weight body 1 is pulled to the specified position of the elevator;
s4: use spanner counter-rotation 180, make the universal wheel retract in the opening and weight body bottom contact ground, pull appointed elevator position after, turn back initial position with spanner counter-rotation, test.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (10)
1. A wheeled weight for elevator load test which characterized in that: including the weight body, the weight body is protruding upwards along vertical direction and is formed the location boss, location boss lateral surface is formed with the location step, be provided with the lifting unit that can follow vertical direction reciprocating motion on the location step, rotatable rocker subassembly that is provided with on the location step, rocker subassembly rotary motion and then drive lifting unit and be straight reciprocating motion along vertical direction.
2. The wheeled weight for elevator load test of claim 1, wherein: the lifting assembly comprises a pressing plate arranged on the positioning step, a linear guide rod fixedly connected with the pressing plate and capable of reciprocating along the vertical direction, and universal wheels arranged at the end parts of the linear guide rod.
3. The wheeled weight for elevator load test of claim 2, wherein: the bottom corner of the weight body is provided with a notch, and the positioning step is downwards provided with a mounting hole for mounting the linear guide rod along the vertical direction.
4. The wheeled weight for elevator load test of claim 3, wherein: the positioning bosses are arranged in parallel, and the outer side surfaces of the two positioning bosses are provided with the positioning steps.
5. The wheeled weight for elevator load testing of claim 4, wherein: the clamp plate is two and two clamp plates are arranged on two location steps respectively, two clamp plate both ends all are provided with the straight line guide arm.
6. The wheeled weight for elevator load testing of claim 5, wherein: four corners at the bottom of the weight body are respectively provided with a notch for mounting a universal wheel, and the lateral surface of the weight body is of an inverted convex structure.
7. The wheeled weight for elevator load testing of claim 6, wherein: the rocker component comprises a rocker horizontally penetrating through the two positioning bosses, cams respectively arranged at the two end parts of the rocker and a rotating handle arranged at the middle part of the rocker.
8. The wheeled weight for elevator load testing of claim 7, wherein: the cam is fixedly arranged at the end part of the rocker and is arranged between the cam and the pressing plate in a rotating fit mode, and a limiting sleeve used for axially limiting the cam is further arranged at the end part of the rocker.
9. The wheeled weight for elevator load testing of claim 8, wherein: and a circular flange linear bearing for mounting the linear guide rod is arranged in the mounting hole.
10. A method for using a wheeled weight for elevator load test, characterized in that the wheeled weight of claim 9 is used, comprising the following steps:
s1: checking whether parts on the weight are loosened and whether the universal wheel can normally rotate;
s2: a wrench is used for moving the rotating handle to rotate 180 degrees, so that the weight body is lifted upwards and the universal wheel is contacted with the ground;
s3: the end part of the rotating handle is bound by a steel wire rope and the weight body is pulled to the specified position of the elevator;
s4: the spanner is used for reversely rotating for 180 degrees, so that the universal wheel retracts into the notch, and the bottom of the weight body is contacted with the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010890965.8A CN111908285B (en) | 2020-08-29 | 2020-08-29 | Wheeled weight for elevator load test and use method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010890965.8A CN111908285B (en) | 2020-08-29 | 2020-08-29 | Wheeled weight for elevator load test and use method |
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| CN111908285A true CN111908285A (en) | 2020-11-10 |
| CN111908285B CN111908285B (en) | 2023-12-22 |
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| CN202010890965.8A Active CN111908285B (en) | 2020-08-29 | 2020-08-29 | Wheeled weight for elevator load test and use method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015096825A (en) * | 2013-11-15 | 2015-05-21 | 西部電機株式会社 | Load testing device |
| CN105181106A (en) * | 2015-08-07 | 2015-12-23 | 江苏大学 | Slow descent apparatus used for weight metering verification |
| CN207581094U (en) * | 2017-12-06 | 2018-07-06 | 重庆市特种设备检测研究院 | A kind of elevator load device |
| JP2018163041A (en) * | 2017-03-27 | 2018-10-18 | 株式会社三井Ｅ＆Ｓマシナリー | Load test structure and manufacturing method of structure |
| CN209242169U (en) * | 2018-08-20 | 2019-08-13 | 苏州市计量测试院 | A kind of Combined poise automated transport system |
| CN110160817A (en) * | 2019-06-19 | 2019-08-23 | 江苏省特种设备安全监督检验研究院 | Electric block tests reinforcement poise system and its application method |
| CN212403056U (en) * | 2020-08-29 | 2021-01-26 | 中北大学 | Elevator detection weight convenient to remove |
-
2020
- 2020-08-29 CN CN202010890965.8A patent/CN111908285B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015096825A (en) * | 2013-11-15 | 2015-05-21 | 西部電機株式会社 | Load testing device |
| CN105181106A (en) * | 2015-08-07 | 2015-12-23 | 江苏大学 | Slow descent apparatus used for weight metering verification |
| JP2018163041A (en) * | 2017-03-27 | 2018-10-18 | 株式会社三井Ｅ＆Ｓマシナリー | Load test structure and manufacturing method of structure |
| CN207581094U (en) * | 2017-12-06 | 2018-07-06 | 重庆市特种设备检测研究院 | A kind of elevator load device |
| CN209242169U (en) * | 2018-08-20 | 2019-08-13 | 苏州市计量测试院 | A kind of Combined poise automated transport system |
| CN110160817A (en) * | 2019-06-19 | 2019-08-23 | 江苏省特种设备安全监督检验研究院 | Electric block tests reinforcement poise system and its application method |
| CN212403056U (en) * | 2020-08-29 | 2021-01-26 | 中北大学 | Elevator detection weight convenient to remove |
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| CN111908285B (en) | 2023-12-22 |
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