CN108956186A - Vertical shaft hoisting head sheave load-carrying properties detection device and method - Google Patents
Vertical shaft hoisting head sheave load-carrying properties detection device and method Download PDFInfo
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- CN108956186A CN108956186A CN201811177566.6A CN201811177566A CN108956186A CN 108956186 A CN108956186 A CN 108956186A CN 201811177566 A CN201811177566 A CN 201811177566A CN 108956186 A CN108956186 A CN 108956186A
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- head sheave
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
Abstract
A kind of vertical shaft hoisting head sheave load-carrying properties detection device, including wirerope, supporting bearing base, vertical basis, vertical side hydraulic loading device, inclined side hydraulic loading device, positioning plate and horizontal base, horizontal base is arranged in parallel along horizontal cross, the upper surface of horizontal base is arranged in positioning plate, symmetrically standing in the outside of horizontal base has vertical basis, supporting bearing base is along horizontal longitudinal across on the basis of vertical, vertical side hydraulic loading device and inclined side hydraulic loading device are mounted on horizontal base by positioning plate, the two ends of wirerope are connected respectively in vertical side chain set and inclined side lock tube, the whole load of progress within the scope of cornerite can enclosed to head sheave, it simulates non-loaded, it is unloaded, heavy duty, card tank, twice loading etc. is normal and extreme operating condition, crack detection and strength check can be carried out to head sheave, it can be before serving Unified load-carrying properties detection is carried out to different-diameter, the different head sheaves for enclosing cornerite, structure is simple, reliable performance.
Description
Technical field
It is especially a kind of suitable for mine vertical shaft elevator the present invention relates to a kind of load-carrying properties detection device and method
Head sheave load detects nuclear device and method.
Background technique
Vertical shaft hoist is equipped as main mine hoisting, is responsible for and is promoted coal spoil, lower putting material, lifts personnel
It is the connection hinge on underground coal mine and ground with the vital task of equipment.Head sheave is mainly made of wheel rim, spoke, wheel hub, installation
In crown, the wirerope being used to support between reel and hoisting container is mainly used for wirerope guiding and carrying.As one
The large foundation equipment of secondary property investment, head sheave bear vertical shaft hoist normally and the load change under extreme operating condition, it should be ensured that take
The major accidents such as labour do not deform in the phase, crack, thus its load-carrying properties is required extremely stringent.Meanwhile once becoming
The load-carrying properties such as shape, crack decline operating condition, and coal mine will be will cause by reprocessing interrupts Lifting Convey for a long time, cause serious economic damage
It loses.Therefore, before serving, need to carry out head sheave stringent load-carrying properties detection.
Currently, head sheave of hoister production firm is numerous, the manufacturing process and production standard of use are not quite similar, and head sheave
Load-carrying properties detection lacks a unified device.Due to the geological conditions multiplicity of coal mine, also produced to promoting load, promoting speed
Different demands have been given birth to, different-diameter, the different vertical shaft friction winding machines for enclosing cornerite head sheave has been thereby produced, causes to hold head sheave
It carries performance detection to be difficult to using unified device, and builds detection device respectively for the head sheave of different size, can generate higher
Construction and operation cost.Currently, the factory testing of head sheave is substantially carried out idle running test, does not carry out application load to head sheave.It comments
The load-carrying properties for sentencing head sheave are based primarily upon the factors such as spoke cross-sectional shape size, spoke quantity, rim cross section geomery
By micro-judgment, it can not reflect the load-carrying properties of head sheave truly and effectively.
Currently, the detection research for being directed to head sheave is concentrated mainly on and detects to active service mine, Patent No.
Head sheave monitoring device disclosed in ZL201220254577.1 is able to detect hand bearing, bearing bush temperature and head sheave beat amount；Patent
Number a day wheel shaft temperature can be monitored on-line for a day wheel shaft temperature on-line monitoring device disclosed in ZL 201320455374.3；Patent
Number pass through installation bearing block load cell and position for head sheave wirerope load-bearing monitor device disclosed in ZL201420104557.5
Displacement sensor detects head sheave operating status；Head sheave disclosed in Patent No. ZL 201410503090.6 monitors system integration temperature
Sensor, three direction acceleration transducers and video camera, can be with the operation conditions of remote real time monitoring head sheave in bearing (ball) cover；Specially
Benefit number for head sheave beat disclosed in ZL201720644607.2 and vibration performance detection device by head sheave transverse diameter to installation position
The beat and vibrational state of displacement sensor detection head sheave；Application No. is the detections of head sheave vibration performance disclosed in 201510761980.1
System can detecte the vibration of head sheave axially and radially；Application No. is mine head sheave rope groove disclosed in 201710414844.4 is radial
Characteristics Detection system can measure the surface quality of head sheave rope groove.Also some scholars build testing stand to head sheave stress and vibration
Characteristic carries out theoretical research.The studies above is primarily present following problems: first, status monitoring mainly is carried out to active service head sheave, and
Lack and head sheave load-carrying properties in a pre-installation are tested, and the latter is the basic guarantee of head sheave not recurring structure failure；Second,
It is detected mainly for the main shaft device of single model, cannot effectively adapt to different-diameter and encloses the head sheave of cornerite；Third,
Lack before installation and load detection is carried out to head sheave, can not effectively assess head sheave load-carrying properties；4th, in-service mine is examined
It surveys, characteristic parameter variation of the head sheave under non-loaded and heavily loaded can not be efficiently used, and this is diagnosis head sheave abnormal deformation, splits
The important feature of the defects of line, at the same can not the pernicious operating condition such as analog card tank, twice loading, and the latter is to judge head sheave carrying
Performance is able to bear the important references of extreme operating condition.Thus, it is necessary to a kind of head sheave load-carrying properties detection device is studied, it can be right
Different-diameter and the head sheave load-carrying properties for enclosing cornerite are detected, the nominal situations such as simulation no-load, heavy duty and card tank, secondary
Whether the extreme operating conditions such as loading, diagnosing in head sheave has deformation and crackle, while assessing head sheave and being able to bear normal and extreme operating condition,
To accurately detect the load-carrying properties of head sheave, for ensuring that vertical shaft hoisting safety is of great significance.
Summary of the invention
Technical problem: the invention aims to overcome shortcoming in the prior art, it is simple to provide a kind of structure, simultaneous
Have the vertical shaft hoisting main shaft device load-carrying properties detection device and method of reliability and convenience.
Technical solution: to achieve the above object, vertical shaft hoisting head sheave load-carrying properties detection device of the invention, including support
Bearing block, the tested head sheave being located in supporting bearing base and the wirerope being wrapped in tested head sheave, the supporting bearing base
Bottom is equipped with symmetrically arranged two vertical bases, and supporting bearing base is along horizontal longitudinal across on symmetrically arranged vertical basis
On, the lower part between two vertical bases is equipped with horizontal base, and the horizontal base is made of and two pieces of rectangular platforms along water
Flat to be parallel transversely disposed, with two vertical bases at right angle, the upper surface of horizontal base is equipped with positioning plate, the positioning plate edge
Horizontal cross is equipped with two column location holes, and the front of horizontal base is equipped with the inclined side hydraulic loading device of located plate positioning, inclines
Oblique side hydraulic loading device is connected with the wirerope around tested head sheave one end, and the rear portion of horizontal base is positioned equipped with located plate
Vertical side hydraulic loading device, vertical side hydraulic loading device is connected with the wirerope around the tested head sheave other end.
The vertical side hydraulic loading device includes vertical side chain set, vertical side piston bar, vertical side cylinder sleeve, vertical side
Bolt and vertical collateral seat, the vertical side chain are set on vertical side piston bar top, and the vertical collateral seat setting is perpendicular
Front cylinder sleeve is perpendicularly fixed at positioning plate by vertical side bolt close to the side of vertical side piston bar, the vertical side cylinder sleeve
On, vertical side cylinder sleeve is located between two pieces of rectangular platforms of horizontal base.
The inclined side hydraulic loading device include inclined side lock tube, inclined side piston rod, inclined side cylinder sleeve, in positioning
Axis, inclined side support and inclined side bolt, the inclined side lock tube are located at the top of inclined side piston rod, and the positioning axis is set
In inclined side cylinder sleeve close to the side of inclined side piston rod, the positioning axis is fixed on inclined side support, and inclined side support is logical
Cross inclined side bolt to be perpendicularly fixed on positioning plate, position the axis of axis at this time along horizontal longitudinal, inclined side cylinder sleeve between
It can be freely rotated between two pieces of rectangular platforms of horizontal base and with axis is positioned along axis.
The length of the wirerope is greater than the perimeter of maximum gauge head sheave, and location hole is between horizontal cross on positioning plate
Away from 0.1m is less than, enables wirerope to different-diameter and enclose the tested head sheave application load of cornerite.
A kind of detection method using above-mentioned vertical shaft hoisting head sheave load-carrying properties detection device, includes the following steps:
(a) vertical side chain set is mounted on vertical side piston bar top, it is close that vertical collateral seat is mounted on vertical side cylinder sleeve
Vertical side piston bar side, is assembled into vertical side hydraulic loading device；
(b) inclined side lock tube is mounted on inclined side piston rod top end, positioning axis is mounted on inclined side cylinder sleeve close to inclining
Oblique side piston bar side, positioning axis are fixed on inclined side support, are assembled into inclined side hydraulic loading device；
(c) tested head sheave is mounted in supporting bearing base, tested head sheave and supporting bearing base are co-axially mounted, according to tested
The diameter D of head sheave and wrap angle sigma and tested head sheave axle center are enclosed from positioning plate upper surface distance H, obtain the axis of positioning axis
Distance L apart from vertical side cylinder sleeve central axes:
Setting position is selected on positioning plate, and vertical side cylinder sleeve is perpendicularly fixed on positioning plate by vertical side bolt,
Inclined side support is perpendicularly fixed on positioning plate by inclined side bolt；
(d) wirerope is bypassed into head sheave, the both ends of wirerope are connected with vertical side chain set and inclined side lock tube respectively, mould
The load F of quasi- practical head sheave two sidesL1And FL2, vertical side hydraulic loading device and inclined side hydraulic loading device driving side each other
And load-side, driving side hydraulic cylinder pull wirerope, load-side hydraulic cylinder by adjusting oil inlet oil pressure actuated respective piston
Inhibit wirerope to pull respective piston by adjusting oil outlet oil pressure, simulates in various load FL1And FL2The stress of lower head sheave
State, to realize the detection of head sheave load-carrying properties.
When whether need to detect head sheave has crackle, acoustic emission sensor is mounted on the wheel rim of tested head sheave, spoke is easy to
The position cracked simulates the stress of the head sheave under unloaded and heavy duty, adjusts the oil inlet oil pressure of driving side hydraulic cylinder
With the oil outlet oil pressure of load-side hydraulic cylinder, start vertical side hydraulic loading device and inclined side hydraulic loading device, driving side
Piston rod pull wirerope pull load-side piston rod, comparative analysis load front and back test point elastic stress wave whether drastic change,
Judge that tested head sheave corresponding position whether there is crackle.
When needing to detect head sheave intensity and whether meeting the requirements, acoustic emission sensor is mounted on to wheel rim, the spoke of tested head sheave
Item is easy to generate the position of flexible deformation, simulates the stress of the head sheave under the extreme operating conditions such as card tank, secondary device, and adjustment is driven
The oil inlet oil pressure of dynamic side hydraulic cylinder and the oil outlet oil pressure of load-side hydraulic cylinder, start vertical side hydraulic loading device and inclination
Side hydraulic loading device, driving side piston rod pull wirerope to pull load-side piston rod, load to tested head sheave, compare
Whether the elastic stress wave variation of analysis load test point judges whether head sheave corresponding position flexible deformation surpass beyond threshold value is allowed
Mark, to judge whether the intensity of tested head sheave is qualified.
The utility model has the advantages that vertical shaft hoisting head sheave load-carrying properties detection device of the invention, pulls steel wire based on hydraulic cylinder load
The mode of rope simulates load force suffered by head sheave, using two column location holes install vertical side hydraulic loading device and inclined side it is hydraulic plus
Different day wheel diameter and wirerope can be applicable in and enclose cornerite by carrying to set, can to head sheave enclose carried out within the scope of cornerite it is whole plus
It carries, the normal and extreme operating condition such as simulation is non-loaded, unloaded, heavily loaded, card tank, twice loading can carry out crack detection to head sheave
And strength check, unified load-carrying properties can be carried out to different-diameter, the different head sheaves for enclosing cornerite before serving and detected, structure
Simply, reliable performance, remarkable in economical benefits, for ensureing that head sheave safety is of great significance.
Detailed description of the invention
Fig. 1 is the device of the invention structural schematic diagram；
Fig. 2 is vertical side hydraulic loading device schematic diagram of the invention；
Fig. 3 is inclined side hydraulic loading device schematic diagram of the invention；
Fig. 4 is the head sheave load operation principle schematic diagram of apparatus of the present invention.
In figure: 1- wirerope, 2- head sheave, 3- supporting bearing base, 4- is basic vertically, the vertical side hydraulic loading device of 5-, 5-
The vertical side chain set of a-, the vertical side piston bar of 5-b-, the vertical side cylinder sleeve of 5-c-, the vertical side bolt of 5-d-, 5-e- collateral seat vertically, 6-
Inclined side hydraulic loading device, 6-a- inclined side lock tube, 6-b- inclined side piston rod, 6-c- inclined side cylinder sleeve, 6-d- positioning in
Axis, 6-e- inclined side support, 6-f- inclined side bolt, 7- positioning plate, 8- horizontal base.
Specific embodiment
The invention will be further described for embodiment in reference to the accompanying drawing:
As shown in Figure 1, a kind of vertical shaft hoisting head sheave load-carrying properties detection device of the invention, mainly by wirerope 1, support
Bearing block 3, vertical basis 4, vertical side hydraulic loading device 5, inclined side hydraulic loading device 6, positioning plate 7 and horizontal base 8
It constitutes, tested head sheave 2 is located in supporting bearing base 3, and wirerope 1 is wrapped in tested head sheave 2, and the supporting bearing base 3 is along water
Flat longitudinal across on vertical basis 4, the horizontal base 8 is made of two pieces of rectangular platforms and along the parallel cloth of horizontal cross
It sets, the rear outside of horizontal base 8, which is symmetrically stood, vertical basis 4, and with horizontal base 8 at right angle, the upper surface of horizontal base 8 is set
There is positioning plate 7, the positioning plate 7 is equipped with two column location holes along horizontal cross, and the front of horizontal base 8 is equipped with located plate 7
The inclined side hydraulic loading device 6 of positioning, inclined side hydraulic loading device 6 and 1 phase of wirerope around tested 2 one end of head sheave
Even, the rear portion of horizontal base 8 is equipped with the vertical side hydraulic loading device 5 of located plate 7 positioning, vertical side hydraulic loading device 5
It is connected with the wirerope 1 around tested 2 other end of head sheave；Vertical side hydraulic loading device 5 and inclined side hydraulic loading device 6 are logical
It crosses positioning plate 7 to be mounted on horizontal base 8, the two ends of wirerope 1 are connected respectively to vertical side chain set 5-a and inclined side lock tube
In 6-a.The positioning plate 7 is equipped with two column location holes along horizontal cross, to install vertical side hydraulic loading device 5 and to incline
Oblique side hydraulic loading device 6；The length of the wirerope 1 is greater than the perimeter of maximum gauge head sheave 2, location hole on positioning plate 7
Spacing along horizontal cross is less than 0.1m, enables wirerope 1 to different-diameter and encloses the application load of head sheave 2 of cornerite.
As shown in Fig. 2, the vertical side hydraulic loading device 5 covers 5-a by vertical side chain, vertical side piston bar 5-b, erects
Front cylinder sleeve 5-c, vertical side bolt 5-d and vertical collateral seat 5-e are constituted, and vertical side chain set 5-a is arranged in vertical side piston bar
The top 5-b, vertical collateral seat 5-e are arranged in vertical side cylinder sleeve 5-c close to the vertical side side piston bar 5-b, vertical side cylinder sleeve 5-c
It is perpendicularly fixed on positioning plate 7 by vertical side bolt 5-d, the long side of vertical collateral seat 5-e is along horizontal longitudinal direction at this time, vertically
Side cylinder sleeve 5-c is between two pieces of rectangular platforms of horizontal base 8.
As shown in figure 3, the inclined side hydraulic loading device 6 by inclined side lock tube 6-a, inclined side piston rod 6-b, incline
Oblique side cylinder sleeve 6-c, positioning axis 6-d, inclined side support 6-e and inclined side bolt 6-f are constituted, and inclined side lock tube 6-a setting exists
The top inclined side piston rod 6-b, positioning axis 6-d setting, close to the side inclined side piston rod 6-b, are determined in inclined side cylinder sleeve 6-c
Position axis 6-d is fixed on inclined side support 6-e, and inclined side support 6-e is perpendicularly fixed at positioning plate 7 by inclined side bolt 6-f
On, the axis of axis 6-d is positioned at this time along horizontal longitudinal, two piece rectangular platforms of the inclined side cylinder sleeve 6-c between horizontal base 8
Between and can be freely rotated with positioning axis 6-d along axis.
The detection method of vertical shaft hoisting head sheave load-carrying properties detection of the invention, includes the following steps:
(a) vertical side chain set 5-a is mounted on the vertical top side piston bar 5-b, vertical collateral seat 5-e is mounted on vertical side
Cylinder sleeve 5-c is assembled into vertical side hydraulic loading device 4 close to the vertical side side piston bar 5-b；
(b) inclined side lock tube 6-a is mounted on the top inclined side piston rod 6-b, positioning axis 6-d is mounted on inclined side cylinder
6-c is covered close to the side inclined side piston rod 6-b, is positioned axis 6-d and is fixed on inclined side support 6-e, it is hydraulic to be assembled into inclined side
Loading device 6；
(c) tested head sheave 2 is mounted in supporting bearing base 3, head sheave 2 and supporting bearing base 3 are co-axially mounted, according to tested
The diameter D of head sheave and wrap angle sigma and head sheave axle center are enclosed from positioning plate upper surface distance H, obtain the axis of positioning axis 6-d
Distance apart from the vertical central axes side cylinder sleeve 5-c:
And then suitable position is selected on positioning plate 7 accordingly, it is by vertical side bolt 5-d that vertical side cylinder sleeve 5-c is vertical
It is fixed on positioning plate 7, inclined side support 6-e is perpendicularly fixed at by positioning plate 7 by inclined side bolt 6-f；
(d) wirerope 1 is bypassed into tested head sheave 2, the both ends of wirerope 1 are connected to vertical side chain set 5-a and inclined side lock tube
6-a simulates the load F of practical head sheave two sidesL1And FL2, vertical side hydraulic loading device 5 and inclined side hydraulic loading device 6 are mutual
For driving side and load-side, driving side hydraulic cylinder pulls wirerope 1, load by adjusting oil inlet oil pressure actuated respective piston
Side hydraulic cylinder inhibits wirerope 1 to pull respective piston by adjusting oil outlet oil pressure, so that simulation is in various load FL1And FL2
The stress of lower head sheave 2；
(e) when whether detect head sheave 2 has crackle, acoustic emission sensor is mounted on to wheel rim, the spoke etc. of tested head sheave 2
The position for being easy to crack simulates the stress of the head sheave 2 under unloaded and heavy duty, adjusts the oil inlet of driving side hydraulic cylinder
The oil outlet oil pressure of oil pressure and load-side hydraulic cylinder starts vertical side hydraulic loading device 5 and inclined side hydraulic loading device 6,
Driving side piston rod pulls wirerope 1 to pull load-side piston rod, and the elastic stress wave of comparative analysis load front and back test point is
No drastic change judges that tested 2 corresponding position of head sheave whether there is crackle；
(f) when detect 2 intensity of head sheave whether meet the requirements when, by acoustic emission sensor be mounted on tested head sheave 2 wheel rim,
Spoke etc. is easy to generate the position of flexible deformation, simulates the stress of the head sheave 2 under the extreme operating conditions such as card tank, secondary device,
The oil inlet oil pressure of driving side hydraulic cylinder and the oil outlet oil pressure of load-side hydraulic cylinder are adjusted, vertical side hydraulic loading device is started
5 and inclined side hydraulic loading device 6, driving side piston rod pulls wirerope 1 to pull load-side piston rod, adds to head sheave 2
It carries, whether comparative analysis loads the elastic stress wave variation of test point beyond threshold value is allowed, and judges that 2 corresponding position elasticity of head sheave becomes
Whether shape is exceeded, to judge whether the intensity of tested head sheave 2 is qualified.
Claims (7)
1. a kind of vertical shaft hoisting head sheave load-carrying properties detection device, including supporting bearing base (3), it is located on supporting bearing base (3)
Tested head sheave (2) and the wirerope (1) that is wrapped on tested head sheave (2), it is characterised in that: the supporting bearing base (3)
Bottom is equipped with symmetrically arranged two vertical basic (4), and supporting bearing base (3) is along horizontal longitudinal across symmetrically arranged perpendicular
On straight basis (4), the lower part between two vertical basic (4) is equipped with horizontal base (8), and the horizontal base (8) is by two pieces
Rectangular platform is constituted and is arranged in parallel along horizontal cross, and the rear outside of horizontal base (8), which is symmetrically stood, vertical basic (4), with
Horizontal base (8) is equipped with positioning plate (7) at right angle, the upper surface of horizontal base (8), and the positioning plate (7) is along horizontal cross
Equipped with two column location holes, the front of horizontal base (8) is equipped with the inclined side hydraulic loading device (6) of located plate (7) positioning, inclines
Oblique side hydraulic loading device (6) is connected with the wirerope (1) around tested head sheave (2) one end, and the rear portion of horizontal base (8) is equipped with
The vertical side hydraulic loading device (5) of located plate (7) positioning, vertical side hydraulic loading device (5) with around tested head sheave (2)
The wirerope (1) of the other end is connected.
2. vertical shaft hoisting head sheave load-carrying properties detection device according to claim 1, it is characterised in that: the vertical side
Hydraulic loading device (5) includes vertical side chain set (5-a), vertical side piston bar (5-b), vertical side cylinder sleeve (5-c), vertical side spiral shell
Bolt (5-d) and vertical collateral seat (5-e), vertical side chain set (5-a) setting are described on vertical side piston bar (5-b) top
Vertical collateral seat (5-e) setting is in vertical side cylinder sleeve (5-c) close to the side of vertical side piston bar (5-b), the vertical side cylinder
Set (5-c) is perpendicularly fixed on positioning plate (7) by vertical side bolt (5-d), and vertical side cylinder sleeve (5-c) is located at horizontal base
(8) between two pieces of rectangular platforms.
3. vertical shaft hoisting head sheave load-carrying properties detection device according to claim 1, it is characterised in that: the inclined side
Hydraulic loading device (6) includes inclined side lock tube (6-a), inclined side piston rod (6-b), inclined side cylinder sleeve (6-c), positioning axis
(6-d), inclined side support (6-e) and inclined side bolt (6-f), the inclined side lock tube (6-a) are located at inclined side piston rod (6-
B) top, positioning axis (6-d) is located at the side of inclined side cylinder sleeve (6-c) close to inclined side piston rod (6-b), described
Positioning axis (6-d) is fixed on inclined side support (6-e), and inclined side support (6-e) is vertically fixed by inclined side bolt (6-f)
Longitudinal along level in the axis on positioning plate (7), positioning axis (6-d) at this time, inclined side cylinder sleeve (6-c) is between horizontal base
(8) it can be freely rotated between two pieces of rectangular platforms and with axis (6-d) is positioned along axis.
4. vertical shaft hoisting head sheave load-carrying properties detection device according to claim 1, it is characterised in that: the wirerope
(1) length of wirerope (1) is greater than the perimeter that maximum gauge is tested head sheave (2), and location hole is along horizontal cross on positioning plate (7)
Spacing be less than 0.1m, make wirerope (1) can to different-diameter and enclose cornerite tested head sheave (2) apply load.
5. a kind of detection method using the described in any item vertical shaft hoisting head sheave load-carrying properties detection devices of claim 1-4,
It is characterized by comprising following steps:
(a) vertical side chain set (5-a) is mounted on vertical side piston bar (5-b) top, vertical collateral seat (5-e) is mounted on vertically
Side cylinder sleeve (5-c) is assembled into vertical side hydraulic loading device (5) close to vertical side piston bar (5-b) side；
(b) inclined side lock tube (6-a) is mounted on the top inclined side piston rod (6-b), positioning axis (6-d) is mounted on inclined side
Cylinder sleeve (6-c) is fixed on inclined side support (6-e), is assembled into close to the side inclined side piston rod (6-b), positioning axis (6-d)
Inclined side hydraulic loading device (6)；
(c) tested head sheave (2) being mounted on supporting bearing base (3), tested head sheave (2) and supporting bearing base (3) are co-axially mounted,
According to the diameter D for being tested head sheave and wrap angle sigma and tested head sheave (2) axle center are enclosed from positioning plate upper surface distance H, and it is fixed to obtain
The distance L of vertical side cylinder sleeve (5-c) central axes of axial line distance of position axis (6-d):
Setting position is selected on positioning plate (7), is perpendicularly fixed at vertical side cylinder sleeve (5-c) by vertical side bolt (5-d)
On positioning plate (7), inclined side support (6-e) is perpendicularly fixed on positioning plate (7) by inclined side bolt (6-f)；
(d) wirerope (1) is bypassed tested head sheave (2), the both ends of wirerope (1) respectively with vertical side chain set (5-a) and inclination
Side chain set (6-a) is connected, and simulates the load F of practical head sheave two sidesL1And FL2, vertical side hydraulic loading device (5) and inclined side
Hydraulic loading device (6) driving side and load-side each other, driving side hydraulic cylinder is by adjusting oil inlet oil pressure actuated respective pistons
Bar pulls wirerope (1), and load-side hydraulic cylinder inhibits wirerope (1) to pull respective piston, mould by adjusting oil outlet oil pressure
Intend in various load FL1And FL2The stress of tested head sheave (2) down, to realize the detection of head sheave load-carrying properties.
6. vertical shaft hoisting head sheave load-carrying properties detection method according to claim 5, it is characterised in that:
When whether need to detect head sheave has crackle, acoustic emission sensor is mounted on the wheel rim of tested head sheave (2), spoke is easy to produce
The position of raw crackle simulates the stress for being tested head sheave (2) under unloaded and heavy duty, adjusts the oil inlet of driving side hydraulic cylinder
The oil outlet oil pressure of oil pressure and load-side hydraulic cylinder starts vertical side hydraulic loading device (5) and inclined side hydraulic loading device
(6), driving side piston rod pulls wirerope (1) to pull load-side piston rod, and the elasticity of comparative analysis load front and back test point is answered
Reeb whether drastic change, judge that tested head sheave (2) corresponding position whether there is crackle.
7. vertical shaft hoisting head sheave load-carrying properties detection method according to claim 5, it is characterised in that:
When needing to detect head sheave intensity and whether meeting the requirements, acoustic emission sensor is mounted on to wheel rim, the spoke of tested head sheave (2)
It is easy to generate the position of flexible deformation, simulates the stress for being tested head sheave (2) under the extreme operating conditions such as card tank, secondary device,
The oil inlet oil pressure of driving side hydraulic cylinder and the oil outlet oil pressure of load-side hydraulic cylinder are adjusted, vertical side hydraulic loading device is started
(5) and inclined side hydraulic loading device (6), driving side piston rod pulls wirerope (1) to pull load-side piston rod, to by observation
Wheel (2) is loaded, and whether comparative analysis loads the elastic stress wave variation of test point beyond threshold value is allowed, and judges tested head sheave
(2) whether corresponding position flexible deformation is exceeded, to judge whether the intensity of tested head sheave (2) is qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811177566.6A CN108956186B (en) | 2018-10-10 | 2018-10-10 | Vertical shaft hoisting head sheave load-carrying properties detection device and method |
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|---|---|---|---|
| CN201811177566.6A CN108956186B (en) | 2018-10-10 | 2018-10-10 | Vertical shaft hoisting head sheave load-carrying properties detection device and method |
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| CN108956186B CN108956186B (en) | 2019-11-08 |
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| FI118993B (en) * | 2006-12-13 | 2008-06-13 | Kone Corp | Procedure and system for monitoring the wear of the elevator machinery to an elevator |
| CN101710008A (en) * | 2009-12-01 | 2010-05-19 | 中国矿业大学 | Method and device for detecting stress of hoisting machine head sheave |
| CN102410922A (en) * | 2011-07-25 | 2012-04-11 | 广州市特种机电设备检测研究院 | Device for testing abrasion and fatigue of steel wire rope and traction sheave of elevator |
| CN202558406U (en) * | 2012-05-23 | 2012-11-28 | 淮北祥泰科技有限责任公司 | Hoisting sheave and skip bucket monitoring device of mine hoisting machine |
| CN106698148A (en) * | 2017-01-13 | 2017-05-24 | 河南科技大学 | Testing device for wire rope tension of hoisting steel wire rope |
| CN108083046A (en) * | 2017-12-15 | 2018-05-29 | 中国矿业大学 | A kind of mine vertical shaft lifting system steel wire rope load monitoring method |
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