CN111908285B - Wheeled weight for elevator load test and use method - Google Patents
Wheeled weight for elevator load test and use method Download PDFInfo
- Publication number
- CN111908285B CN111908285B CN202010890965.8A CN202010890965A CN111908285B CN 111908285 B CN111908285 B CN 111908285B CN 202010890965 A CN202010890965 A CN 202010890965A CN 111908285 B CN111908285 B CN 111908285B
- Authority
- CN
- China
- Prior art keywords
- weight
- rocker
- positioning
- weight body
- vertical direction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000003825 pressing Methods 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 abstract description 10
- 238000001514 detection method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 238000012545 processing Methods 0.000 description 8
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000012827 research and development Methods 0.000 description 3
- 208000006011 Stroke Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 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
- 238000011076 safety test Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses a wheel weight for elevator load test and a use method thereof, the wheel weight comprises a weight body, the weight body protrudes upwards along the vertical direction to form a positioning boss, the outer side surface of the positioning boss is provided with a positioning step, the positioning step is provided with a lifting component capable of reciprocating along the vertical direction, the positioning step is rotatably provided with a rocker component, the rocker component rotates to drive the lifting component 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 weight for elevator load test and a use method thereof.
Background
Elevators are transportation devices for transporting passengers or goods up and down in high-rise buildings, and old elevators throughout the country frequently have direct or indirect accidents due to insufficient braking force and traction force in recent years due to the hysteresis of standard regulations and the lack of supervision experience.
The operation of the existing elevator needs to be carried out as follows: 1. traction capability test: a balance coefficient test, an idle load uplink test, a static load test and a forced stop test under 125% rated load; 2. safety test: the method comprises a speed limiter-safety tongs action test, a buffer load and reset test; 3. operational reliability test: running speed test, running test, overload test and the like; 4. and (5) detecting and confirming the performance of the whole machine.
The tests all need to put the load into the elevator, then loads with different weights are added according to the test requirements, for example, when a worker performs 125% test on the elevator, firstly, a weight with 40% of the load of the elevator is carried into the elevator, then the elevator is operated to record data, then 45%, 50% and 60% of loads of the elevator are respectively tested and recorded to obtain the balance coefficient result of the elevator, finally, 100% and 125% of loads are subjected to emergency stopping tests, and finally, the test result is obtained. The weight is moved in the test process, which is a complicated process, and reduces the working efficiency. The existing detection is generally carried by manpower, so that the efficiency is low, the cost is high, and the efficiency of detecting the elevator is lowered greatly.
For this purpose, a wheel weight for elevator load test is required to solve the above problems.
Disclosure of Invention
In view of the above, the wheel weight provided by the invention has the advantages of simple structure, convenient operation, great reduction of product research and development cost, larger market, capability of reducing the labor intensity of elevator detection personnel, improvement of the safety of the elevator detection personnel in the detection process, and simple product structure, and convenience in production and processing.
The utility model provides a wheeled weight for elevator load test, includes the weight body, the weight body is protruding upwards along vertical direction to form the location boss, location boss lateral surface is formed with the location step, be provided with on the location step and follow vertical direction reciprocating motion's lifting unit, the rotatable rocker subassembly that is provided with on the location step, rocker subassembly rotary motion and then drive lifting unit and do straight reciprocating motion along vertical direction.
Further, 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.
Further, the opening is formed in the corner of the bottom of the weight body, and the positioning step is downwards provided with a mounting hole for mounting the linear guide rod along the vertical direction.
Further, two positioning bosses are arranged in parallel, and the positioning steps are formed on the outer side surfaces of the two positioning bosses.
Further, the two pressing plates are respectively arranged on the two positioning steps, and the two ends of the two pressing plates are respectively provided with a linear guide rod.
Further, openings for installing universal wheels are formed in four corners of the bottom of the weight body, and the side face of the weight body is in an inverted-convex structure.
Further, the rocker assembly comprises a rocker horizontally penetrating through the two positioning bosses, cams respectively arranged at two end parts of the rocker and a rotating handle arranged in the middle of the rocker.
Further, the cam is fixedly arranged at the end part of the rocker and is in running fit with the pressing plate, and the end part of the rocker is further provided with a limiting sleeve for axially limiting the cam.
Further, a circular flange linear bearing for installing the linear guide rod is arranged in the installation hole.
Further, the wheel weight using method comprises the following steps:
s1: checking whether the parts on the weight are loose or not, and whether the universal wheel can normally rotate or not;
s2: the wrench is used for moving the rotating handle to rotate 180 degrees, so that the weight body is lifted upwards and the universal wheel contacts the ground;
s3: binding the end part of the rotating handle by adopting a steel wire rope, and pulling the weight body to the appointed position of the elevator;
s4: the wrench is used for reversely rotating 180 degrees, so that the universal wheel is retracted into the notch, and the bottom of the weight body is contacted with the ground.
The beneficial effects of the invention are as follows:
the wheel weight disclosed by the invention has the advantages of simple structure, convenience in operation, great reduction in product research and development cost, larger market, capability of reducing the labor intensity of elevator detection personnel, improvement in the safety of the elevator detection personnel in the detection process, and simplicity in product structure, and convenience in production and processing.
Drawings
The invention is further described below with reference to the accompanying drawings and examples:
FIG. 1 is a schematic diagram 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 in a landed position;
FIG. 5 is a schematic view of the weight of the present invention when it is lifted off the ground;
fig. 6 is a front view of the cam of the present invention.
Description of the embodiments
FIG. 1 is a schematic diagram 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 in a landed position; FIG. 5 is a schematic view of the weight of the present invention when it is lifted off the ground; fig. 6 is a front view of a cam of the present invention, as shown in the drawing, a wheel weight for elevator load test, including a weight body 1, the weight body 1 protrudes upward along a vertical direction to form a positioning boss 11, a positioning step 12 is formed on an outer side surface (an outer side surface is shown in fig. 3) of the positioning boss 11, a lifting component capable of reciprocating along the vertical direction is provided on the positioning step 12, a rocker component is rotatably provided on the positioning step, and the rocker component rotates to drive the lifting component to reciprocate linearly along the vertical direction. The wheel weight of this technical scheme, simple structure, the operation of being convenient for, very big reduction product research and development's cost possess bigger market, can reduce elevator inspector's intensity of labour, improved elevator inspector's security in the testing process, product simple structure is convenient for production and processing 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 under the prerequisite that is not broken by the pressure, still have certain wearability, the material of the single round selection of universal wheel 23 is polyurethane, adopt fixed connection's mode setting between clamp plate 21 and the straight line guide arm 22, the universal wheel 23 is equipped with to straight line guide arm 22 bottom, 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 (i.e. the upper and lower direction in FIG. 3) and carry out the motion, during normal condition, universal wheel 23 does not contact (or just contact but can not support) with the ground, when carrying is needed, clamp plate 21 downward movement makes universal wheel 23 downwardly extending, weight body 1 breaks away from ground a take the altitude, universal wheel 23 plays the support and can conveniently carry this moment, make things convenient for the workman to operate, 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 downward along the vertical direction. All processing forms the opening structure (this technical scheme is the cuboid structure) that is used for installing the universal wheel on four corners in weight body bottom, and the processing of vertical direction is followed to weight body 1 both ends and is formed the mounting hole structure for installation straight line guide arm 22, overall structure is simple, and processing is convenient.
In this embodiment, two positioning bosses 11 are provided, the two positioning bosses 11 are disposed parallel to each other, and the outer side surfaces of the two positioning bosses 11 are both formed with the positioning step 12. The upper end face of the weight body 1 is upwards protruded to form two positioning bosses 11 which are mutually parallel, the outer side faces of the two positioning bosses 11 (namely the end face of the mounting pressing plate in fig. 3) are symmetrically arranged relative to the symmetrical axis of the weight body 1 (the vertical center line of the upper surface of the weight body 1), the whole structure is regular, and the processing and forming are convenient.
In this embodiment, the number of the pressing plates 21 is two, the two pressing plates are respectively arranged on the two positioning steps 12, and two ends of the two pressing plates 21 are respectively provided with a linear guide rod 22. The four straight guide rods 22 are uniformly arranged at two ends of the two pressing plates 21 respectively, so that four effective supporting points are formed, when a heavy object contacts the ground, the ground clearance of the universal wheel is convenient to adjust, the situation that one universal wheel contacts the ground can be avoided, other parts are damaged, the stress of the whole structure is more uniform, and the service life of the product is prolonged.
In this embodiment, all be provided with the opening 13 that is used for installing the universal wheel on four angles in weight body 1 bottom, weight body 1 side is the structure of falling "protruding" style of calligraphy, and weight body 1 side processing forms a plurality of mounted positions, is convenient for install weight spare part.
In this embodiment, the rocker assembly includes a rocker 31 horizontally penetrating through the two positioning bosses 11, cams 33 respectively disposed at two ends of the rocker 31, and a rotating handle 32 disposed in the middle of the rocker 31. According to ergonomics, the distance between the axis of the cam and the upper surface of the weight body 1 is 35mm, which is more favorable for lowering the gravity center of the device, and the middle position of the rocker is provided with a rotating handle 32, which is convenient for rotating operation, and the cam 33 and the rocker 31 are connected and matched by adopting keys.
In this embodiment, the cam 33 is fixedly disposed at the end of the rocker 31, and the cam 33 and the pressing plate 21 are disposed in a rotationally matched manner, and the end of the rocker 31 is further provided with a stop collar 34 for axially limiting the cam. The cam is made of 20Gr, is quenched to 58-63 HRC after carburization treatment, has a carburized layer thickness of about 0.8-1.2 mm, and can be made soft inside and hard outside so as to prolong the service life of the cam, the cam 33 is a four-stage cam, one pushing stage and one return stage are separated by two rest stages. And the motion rule of the driven piece is constant-speed motion in the pushing stroke stage and the return stroke stage, so that the whole cam 33 can be smooth and excessive, the heavy object can be slowly jacked up, and the stability of the lifting and descending processes of the heavy object is greatly improved. The four phases occupy 90 degrees, which results in different times for the two stopping phases during one rotation of the cam, and the cam 33 is not easy to enter the return phase, which makes it difficult to drop when the weight rises to the limit height.
In this embodiment, a circular flange linear bearing 4 for mounting the linear guide 22 is disposed in the mounting hole. The adoption of the circular flange linear bearing 4 is convenient for the linear guide rod 22 to improve the guidance quality of movement and the stability in the movement process, and the circular flange linear bearing 4 is arranged at both ends of the mounting hole.
Because the elevator needs to be frequently detected and the wheel weight needs to be frequently used, the abrasion to the weight body cannot be avoided in the using process, and therefore the wheel weight is further provided with the adhesive quality adjusting sheet. The adhesive quality adjusting sheet has various specifications. When the weight is used each time, quality detection needs to be carried out, and if the quality does not meet the mark, the adhesive quality adjusting sheet needs to be attached to the upper surface of the weight body. In order to ensure that the center of gravity does not deviate, the adhesive mass adjusting sheets are 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 weight includes the following steps:
s1: checking whether the parts on the weight are loose or not, and whether the universal wheel can normally rotate or not; weight detection is reduced before use, and normal use is ensured.
S2: the turning handle is moved by using a spanner to rotate 180 degrees, so that the weight body 1 is lifted upwards and the universal wheel 23 contacts the ground; the handle is rotated by a spanner or other tools, and the linear guide rod synchronously moves downwards during rotation until the universal wheel contacts the ground and the weight body 1 is lifted upwards by 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 appointed position of the elevator;
s4: the wrench is used for reversely rotating 180 degrees, so that the universal wheel is retracted into the notch, the bottom of the weight body is contacted with the ground, and after the weight body is pulled to a specified elevator position, the wrench is used for reversely rotating the weight body to return to the initial position for testing.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and 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 and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (7)
1. A wheeled weight for elevator load test, its characterized in that: the weight comprises a weight body, wherein the weight body protrudes upwards along the vertical direction to form a positioning boss, the outer side surface of the positioning boss is provided with a positioning step, the positioning step is provided with a lifting assembly capable of reciprocating along the vertical direction, the positioning step is rotatably provided with a rocker assembly, and the rocker assembly rotates to drive the lifting assembly to do linear reciprocating along the vertical direction; 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; the rocker assembly comprises a rocker horizontally penetrating through the two positioning bosses, cams respectively arranged at two end parts of the rocker and a rotating handle arranged in the middle of the rocker; the cam is fixedly arranged at the end part of the rocker and is in running fit with the pressing plate, a limiting sleeve for axially limiting the cam is further arranged at the end part of the rocker, and the pressing plate is made of HT250 material.
2. The wheel weight for elevator load test according to claim 1, characterized in that: the weight body bottom corner has seted up the opening, the location step has offered the mounting hole that is used for installing the straight line guide arm downwards along vertical direction.
3. The wheel weight for elevator load test according to claim 2, characterized in that: the positioning bosses are arranged in parallel, and the positioning steps are formed on the outer side surfaces of the two positioning bosses.
4. A wheel weight for elevator load testing according to claim 3, characterized in that: the two pressing plates are respectively arranged on the two positioning steps, and the two ends of the two pressing plates are respectively provided with a linear guide rod.
5. The weight for elevator load test according to claim 4, wherein: the weight is characterized in that openings for installing universal wheels are formed in four corners of the bottom of the weight body, and the side face of the weight body is of an inverted-convex structure.
6. The weight for elevator load test according to claim 5, wherein: a circular flange linear bearing for installing the linear guide rod is arranged in the installation hole.
7. A method of using a wheel weight for elevator load testing, characterized in that the wheel weight of claim 6 is used, comprising the steps of:
s1: checking whether the parts on the weight are loose or not, and whether the universal wheel can normally rotate or not;
s2: the wrench is used for moving the rotating handle to rotate 180 degrees, so that the weight body is lifted upwards and the universal wheel contacts the ground;
s3: binding the end part of the rotating handle by adopting a steel wire rope, and pulling the weight body to the appointed position of the elevator;
s4: the wrench is used for reversely rotating 180 degrees, so that the universal wheel is retracted 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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111908285A CN111908285A (en) | 2020-11-10 |
| CN111908285B true CN111908285B (en) | 2023-12-22 |
Family
ID=73267899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010890965.8A Active CN111908285B (en) | 2020-08-29 | 2020-08-29 | Wheeled weight for elevator load test and use method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111908285B (en) |
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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111908285A (en) | 2020-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212403056U (en) | Elevator detection weight convenient to remove | |
| CN109748168B (en) | No-load testing device and method for 1.25-time braking test of traction elevator | |
| CN101486424B (en) | Elevator rope vibration stopping apparatus | |
| CN111908285B (en) | Wheeled weight for elevator load test and use method | |
| JP2017039559A (en) | Rope tester for elevator | |
| CN104816999A (en) | Rapid rope disassembly and assembly device for elevator speed governor | |
| CN218988732U (en) | Mobile maintenance equipment | |
| CN108910756B (en) | Power battery lifting machine and method thereof | |
| CN113638455B (en) | Foundation pile static load test system and test method | |
| CN114538252B (en) | Traction steel wire rope wrap angle continuous adjusting device and adjusting method | |
| CN108602645B (en) | Brake device for supporting replacement of elevator rope | |
| CN213834330U (en) | Lifting device for assembly or maintenance workshop | |
| CN211115781U (en) | Follow-up frame mounting structure of large triangular rotary drilling rig | |
| CN212122267U (en) | Counterweight assembly special machine matched with loader ground drag chain assembly line | |
| CN110844737B (en) | Elevator speed limiter | |
| CN106219425B (en) | Boring tower leading truck winding auxiliary device | |
| CN212403057U (en) | Movable weight for elevator test | |
| CN217201860U (en) | Press guide bar installer | |
| CN212748581U (en) | Wear-resisting cast ball falling ball testing machine | |
| CN107585658B (en) | Elevator refitting method | |
| CN218931612U (en) | Portable hydraulic swing arm lifting equipment | |
| CN216816415U (en) | Steel wire rope friction performance testing equipment for elevator | |
| CN216102238U (en) | Elevator load test vehicle-mounted device | |
| CN215711606U (en) | Lifting working platform | |
| CN111928932A (en) | Elevator test weight convenient to move |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |