CN208054658U - Balance coefficient of elevator no-load measuring device - Google Patents
Balance coefficient of elevator no-load measuring device Download PDFInfo
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- CN208054658U CN208054658U CN201820262455.4U CN201820262455U CN208054658U CN 208054658 U CN208054658 U CN 208054658U CN 201820262455 U CN201820262455 U CN 201820262455U CN 208054658 U CN208054658 U CN 208054658U
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Abstract
The utility model discloses a kind of balance coefficient of elevator no-load measuring devices, including rope gripper, weighing device and fixing device；The lower end of the rope gripper and the upper end of the weighing device are hinged, and the lower end of weighing device is hinged with the fixing device.The utility model advantage be it is simple in structure, processing and manufacturing it is of low cost；Simple operation when realization measures balance coefficient of elevator no-load, measurement result is accurate, intuitive, while installing, convenient disassembly.
Description
Technical field
The utility model is related to elevators, more particularly, to balance coefficient of elevator no-load measuring device.
Background technology
Balance coefficient of elevator is the important performance indexes of traction-type driving elevator, needs in-site measurement.Rationally setting elevator
Coefficient of balance not only may insure that elevator brake brakes range inside brake at it, can also also save a large amount of power resources.Traction
The car of elevator hangs on the both sides of traction sheave with counterweight respectively by steel wire rope, and the G2.4 sections in GB7588-2003 give
Coefficient of balance（q）The amount that definition, i.e. nominal load capacity and car mass are balanced by counterweight or balance weight.
Its calculation formula as a result,：
Wherein：
Q --- coefficient of balance；
W--- counterweight mass, kg；
P--- car mass, kg；
Q --- nominal load capacity；kg.
Currently, the measurement method that home and abroad generally uses be loaded respectively in car nominal load capacity 30%, 40%,
45%, 50%, 60% test block carries out upper and lower total travel operation, when car and counterweight run to the same horizontal position, record
The current value of car crane motor draws electric current-load curve, coefficient of balance is determined with the intersection point of uplink and downlink operation curve.
This measurement method is a kind of indirect measurement method, need in measurement process according to different loading capacities to lift car into
Pedestrian's work carries load, not only time-consuming and laborious, efficiency is low, but also there are large errors, hardly result in accurate balance coefficient of elevator.
201952077 U of Chinese patent CN disclose a kind of measuring device of balance coefficient of elevator, this is a kind of no-load
Measurement method, be set to elevator counterweight-side, by wire cable clamp, two load cells and two adjustable supportings for fixing
Frame and measurement table are constituted；Due to Elevator weight sensor side steel wire rope under the action of directive wheel with horizontal plane there are larger angle,
This just needs the setting angle for adjusting wire cable clamp and two load cells for a long time；And it is draged since the measuring device is close
Running wheel, by steel wire rope（Suspension arrangement）The limitation of traction race, apart from very little between more steel wire ropes, it is impossible to pass through steel wire rope
The fishbolt of fixture.In addition, when being measured with two load cells, precision is by two load cell mounting heights and angle
Influence, and be clamped in steel wire rope upper angle by wire cable clamp and influenced, it is very high to the skill set requirements of survey crew, by people
It is affected for operation factors, and the counterweight-side of some elevators does not have the installation site of this measuring device.
Currently, since domestic elevator recognizes that in the industry influence of the balance coefficient of elevator to elevator brake is very big, so state
State Administration of Quality Supervision, Inspection and Quarantine of family issued on June 12nd, 2017《Elevator surveillance inspection and periodic inspection rule-traction and forcibly driving elevator》
Deng the single bulletin of No. 2 modification of 6 technicals specification of security, the coefficient of balance experiment of elevator is examined project by original C classes（Such as
When data review is without querying, qualification can be confirmed）It is revised as B classes and examines project（It not only examines data, also the intermediate item is carried out
Field test）, it is that can be carried out after meeting, and increase in periodic inspection that other experiments in inspection, which only have isoequilibrium coefficient results,
The inspection project of coefficient of balance is added.Therefore, it to reduce man's activity, improves balance coefficient of elevator measurement accuracy and work is imitated
Rate reduces installation unit or uses unit-economy cost（The labour cost of the load and carrying that are loaded in car）, it is necessary to it grinds
Study carefully that a kind of high certainty of measurement, installation is simple, work efficiency is high and small no-load measurement method is influenced by people's factor.
Invention content
The utility model aim is to provide a kind of high certainty of measurement, installation is simple, work efficiency is high and by people's factor shadow
Ring small balance coefficient of elevator no-load measuring device.
To achieve the above object, the utility model takes following technical proposals：
Balance coefficient of elevator no-load measuring device described in the utility model, including rope gripper, weighing device and solid
Determine device；The lower end of the rope gripper and the upper end of the weighing device are hinged, the lower end of weighing device and the fixation
Device is hinged.
The fixing device is fixed link, and the both ends of the fixed link are respectively fork configuration.
The rope gripper includes the socket for offering wedge-shaped slot, is inserted into the wedge-shaped slot and matches with it
Wedge-shaped inserted block；The vertical section of the wedge shape inserted block is ladder structure of right angle, and wedge-shaped slot is the open slot for being provided with in-flanges
Structure, it is corresponding along longitudinal direction respectively in the plane that wedge-shaped inserted block is in contact with wedge-shaped slot to offer grooving.
It is provided with rolling row between the inclined-plane of the wedge shape inserted block and the inclined-plane of the wedge-shaped slot in-flanges.
The rope gripper includes the socket for offering wedge-shaped slot, is inserted into the wedge-shaped slot and matches with it
Wedge-shaped inserted block, the pressing plate being fastened at wedge-shaped slot notch；The vertical section of the wedge shape inserted block is ladder structure of right angle, described
The vertical section of pressing plate is chamfer trapezium structure, and wedge-shaped inserted block is opened with corresponding along longitudinal direction respectively in the plane that is in contact of wedge shape slot
Equipped with grooving；Socket and pressing plate, which are bolted, to be integrated.
It is provided with rolling row between the inclined-plane and the inclined-plane of the pressing plate of the wedge shape inserted block.
The rope gripper includes substrate, wedge and pressing plate；The vertical section of the wedge is ladder structure of right angle, the pressure
The vertical section of plate is chamfer trapezium structure；Wedge offers grooving with corresponding along longitudinal direction respectively in the plane that substrate is in contact,
Substrate and pressing plate, which are bolted, to be integrated.
Rolling row is provided between the inclined-plane of the wedge and the inclined-plane of the pressing plate.
The utility model advantage be it is simple in structure, processing and manufacturing it is of low cost；It realizes to balance coefficient of elevator no-load
Simple operation when measurement, measurement result is accurate, intuitive, while installing, convenient disassembly.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2-1, Fig. 2-2, Fig. 2-3, Fig. 2-4 are the first structural schematic diagrams of rope gripper described in the utility model.
Fig. 3-1, Fig. 3-2 are second of structural schematic diagrams of rope gripper described in the utility model.
Fig. 4-1, Fig. 4-2 are the third structural schematic diagrams of rope gripper described in the utility model.
Fig. 5 is the use state reference chart of the utility model.
Fig. 6 is the portions the I enlarged structure schematic diagram of Fig. 5.
Specific implementation mode
It elaborates below in conjunction with the accompanying drawings to the embodiment of the present invention, the present embodiment before being with technical solution of the present invention
It puts and is implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to down
State embodiment.
As shown in Figure 1, balance coefficient of elevator no-load measuring device described in the utility model, including rope gripper 1, title
2 and fixed link 3 are set in refitting；The lower end of rope gripper 1 and the upper end of weighing device 2 mutually mount, the lower end of weighing device 2 and fixation
3 phase of bar mounts, and the both ends of fixed link 3 are respectively 4 structure of fork-shaped.Weighing device 2 is selected as weighing sensor, and rope gripper 1 has
Three kinds of structures are selective：
The first rope gripper 1 is as shown in Fig. 2-1, Fig. 2-2, Fig. 2-3, Fig. 2-4, including offers inserting for wedge-shaped slot 5
Seat 6, is inserted into wedge-shaped slot 5 and matched wedge-shaped inserted block 7；The vertical section of wedge-shaped inserted block 7 is ladder structure of right angle,
Wedge-shaped slot 5 is the opening slot structure for being provided with in-flanges 8, edge respectively in the plane that wedge-shaped inserted block 7 is in contact with wedge-shaped slot 5
Longitudinal correspond to offers grooving 9.1,9.2, and rolling is provided between the inclined-plane of 5 in-flanges 8 of the inclined-plane of wedge-shaped inserted block 7 and wedge-shaped slot
Row 10.
Second of rope gripper 1 is as shown in Fig. 3-1, Fig. 3-2, including offers the socket 12 of wedge-shaped slot 11, is inserted into
In wedge-shaped slot 11 and matched wedge-shaped inserted block 13, the pressing plate 14 being fastened at 11 notch of wedge-shaped slot；Wedge-shaped inserted block
13 vertical section is ladder structure of right angle, and the vertical section of pressing plate 14 is chamfer trapezium structure, wedge-shaped inserted block 13 and wedge-shaped slot
Correspondence offers grooving 15.1,15.2 along longitudinal direction respectively in 11 planes being in contact；Socket and pressing plate are connected as by bolt 16
One；Rolling row 17 is provided between the inclined-plane and the inclined-plane of pressing plate 14 of wedge-shaped inserted block 13.
The third rope gripper 1 is as shown in Fig. 4-1, Fig. 4-2, including substrate 18, wedge 19 and pressing plate 20；Wedge 19 is indulged
Section is ladder structure of right angle, and the vertical section of pressing plate 20 is chamfer trapezium structure；The plane that wedge 19 is in contact with substrate 18
Upper correspondence offers grooving 21.1,21.2 along longitudinal direction respectively, and rolling row is provided between the inclined-plane and the inclined-plane of pressing plate 20 of wedge 19
22；Substrate 18 and pressing plate 20 are connected as one by bolt 23.
Utility model works principle is summarized as follows：
When measuring balance coefficient of elevator no-load, car and counterweight are run into the same horizontal position, disconnect elevator
Rope gripper 1 is mounted on cage side close on the hanging steel rope of traction sheave, by the upper hook of weighing device 2 by main switch
It is mounted in the hole for hoist of rope gripper 1, then fixed link 3 is mounted on to the underface of weighing device 2, by weighing device 2
Lower draw-bar is mounted in fixed link 3, and the fork-shaped 4 of 3 both sides of fixed link is inserted into the pony sill I-steel of elevator traction machine cage side
Along upper in 24, that is, complete the installment work of this measuring device.
By the way that the brake of traction machine is opened manually, since counterweight is than car weight, counterweight can pull hanging steel rope edge to drag
Running wheel rotates, and rope gripper 1 moves with hanging steel rope, directly stopped moving by the pulling force of weighing device 2, at this time
Value of thrust is directly read on the display screen of weighing device 2（2 so-called weight of weighing device）, this weight is along with rope-clamping dress
Set 1 weight and rope gripper 1 to hanging steel rope between traction sheave weight（Such as apart from small negligible）, it is exactly counterweight ratio
The weight that car has more, then divided by nominal load capacity be the coefficient of balance of elevator；It certainly, also can be by the measurement of weighing device 2
Data-signal is exported to microcontroller, and coefficient of balance is directly read by inputting calculating parameter to microcontroller.
The first rope gripper 1 is inserted into wedge shape as shown in Fig. 2-1, Fig. 2-2, Fig. 2-3, Fig. 2-4, in wedge-shaped inserted block 7 and inserts
In slot 5, and give hoist ropes scheduled pressing force by the plane that the row of rolling 10 and wedge-shaped slot 5 are in contact, grooving 9.2 be more than
The semicircle groove face and surfacing friction coefficient of hanging steel rope diameter are small, and grooving 9.1 is V-shaped groove face and surfacing friction system
Number is big, when counterweight pulls hanging steel rope to be rotated along traction sheave, under the action of predetermined pressing force, and grooving 9.1 and suspension steel
The frictional force of cord is maximum, wedge-shaped inserted block 7 can with hanging steel rope by the row of rolling 10 along the inclined-plane of 5 in-flanges 8 of wedge-shaped slot to
Upper movement allows rope gripper 1 the more to press from both sides the more tight, and rope gripper 1 is made to be fixedly connected with hoist ropes, and at this moment rope gripper can be with traction
Rope movement.
As shown in figure 3-2, socket 12, wedge-shaped inserted block 13, rolling row 17 and pressing plate 14 pass through bolt 16 to second of rope gripper 1
It fits together（As shown in figure 3-1）, and having scheduled pressing force, grooving 15.2 is the half slot more than hanging steel rope diameter
Face and surfacing friction coefficient is small, grooving 15.1 is V-shaped groove face and surfacing friction coefficient is big, when counterweight pulls suspension steel
When cord is rotated along traction sheave, under the action of predetermined pressing force, grooving 15.1 and the frictional force of hanging steel rope are maximum, wedge shape
Inserted block 13 can be moved up by the row of rolling 17 along the inclined-plane of pressing plate 14 with hanging steel rope, is allowed rope gripper 1 the more to press from both sides the more tight, is made folder
Rope device 1 is fixedly connected with hoist ropes, and at this moment rope gripper can be moved with hoist ropes.
Shown in 1 Fig. 4-2 of the third rope gripper, substrate 18, wedge 19, rolling row 22 and pressing plate 20 are assembled in by bolt 16
Together（As shown in Fig. 4-1）, and having scheduled pressing force, grooving 21.2 is the semicircle groove face and table more than hanging steel rope diameter
Plane materiel material friction coefficient is small, and grooving 21.1 is V-shaped groove face and surfacing friction coefficient is big, when counterweight pulls hanging steel rope edge
When traction sheave rotates, under the action of predetermined pressing force, the frictional force of grooving 21.1 and hanging steel rope is maximum, and wedge 19 can be with
Hanging steel rope 22 is moved up by the row of rolling along the inclined-plane of pressing plate 20, and rope gripper 1 is allowed the more to press from both sides the more tight, make rope gripper 1 with
Hoist ropes is fixedly connected, and at this moment rope gripper can be moved with hoist ropes.
Claims (8)
1. a kind of balance coefficient of elevator no-load measuring device, including rope gripper, weighing device and fixing device；Its feature exists
In：The lower end of the rope gripper and the upper end of the weighing device are hinged, the lower end of weighing device and the fixing device
It is hinged.
2. balance coefficient of elevator no-load measuring device according to claim 1, it is characterised in that：The fixing device is
The both ends of fixed link, the fixed link are respectively fork configuration.
3. balance coefficient of elevator no-load measuring device according to claim 1 or 2, it is characterised in that：The rope-clamping dress
The socket including offering wedge-shaped slot is set, is inserted into the wedge-shaped slot and matched wedge-shaped inserted block；The wedge
The vertical section of shape inserted block is ladder structure of right angle, and wedge-shaped slot is the opening slot structure for being provided with in-flanges, wedge-shaped inserted block and wedge
Correspondence offers grooving along longitudinal direction respectively in the plane that shape slot is in contact.
4. balance coefficient of elevator no-load measuring device according to claim 3, it is characterised in that：The wedge shape inserted block
It is provided with rolling row between inclined-plane and the inclined-plane of the wedge-shaped slot in-flanges.
5. balance coefficient of elevator no-load measuring device according to claim 1 or 2, it is characterised in that：The rope-clamping dress
The socket including offering wedge-shaped slot is set, is inserted into the wedge-shaped slot and matched wedge-shaped inserted block, is fastened on
Pressing plate at wedge-shaped slot notch；The vertical section of the wedge shape inserted block is ladder structure of right angle, and the vertical section of the pressing plate is to fall
Ladder structure of right angle, it is corresponding along longitudinal direction respectively in the plane that wedge-shaped inserted block is in contact with wedge-shaped slot to offer grooving；Socket and
Pressing plate, which is bolted, to be integrated.
6. balance coefficient of elevator no-load measuring device according to claim 5, it is characterised in that：The wedge shape inserted block
Rolling row is provided between inclined-plane and the inclined-plane of the pressing plate.
7. balance coefficient of elevator no-load measuring device according to claim 1 or 2, it is characterised in that：The rope-clamping dress
It sets including substrate, wedge and pressing plate；The vertical section of the wedge is ladder structure of right angle, and the vertical section of the pressing plate is chamfer
Trapezium structure；Wedge offers grooving with corresponding along longitudinal direction respectively in the plane that substrate is in contact, and substrate and pressing plate pass through bolt
It is connected as one.
8. balance coefficient of elevator no-load measuring device according to claim 7, it is characterised in that：The inclined-plane of the wedge
Rolling row is provided between the inclined-plane of the pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820262455.4U CN208054658U (en) | 2018-02-23 | 2018-02-23 | Balance coefficient of elevator no-load measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820262455.4U CN208054658U (en) | 2018-02-23 | 2018-02-23 | Balance coefficient of elevator no-load measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN208054658U true CN208054658U (en) | 2018-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820262455.4U Active CN208054658U (en) | 2018-02-23 | 2018-02-23 | Balance coefficient of elevator no-load measuring device |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108147248A (en) * | 2018-02-23 | 2018-06-12 | 河南省特种设备安全检测研究院 | Balance coefficient of elevator no-load measuring device |
| CN109724817A (en) * | 2018-12-10 | 2019-05-07 | 中汽商用汽车有限公司(杭州) | A kind of mine rescue vehicle experimental rig and test method |
-
2018
- 2018-02-23 CN CN201820262455.4U patent/CN208054658U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108147248A (en) * | 2018-02-23 | 2018-06-12 | 河南省特种设备安全检测研究院 | Balance coefficient of elevator no-load measuring device |
| CN108147248B (en) * | 2018-02-23 | 2024-05-24 | 河南省特种设备安全检测研究院 | Elevator balance coefficient non-load measuring device |
| CN109724817A (en) * | 2018-12-10 | 2019-05-07 | 中汽商用汽车有限公司(杭州) | A kind of mine rescue vehicle experimental rig and test method |
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