CN104913761A - Functional handcart chassis deformation detection method and functional handcart chassis deformation detection device - Google Patents
Functional handcart chassis deformation detection method and functional handcart chassis deformation detection device Download PDFInfo
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- CN104913761A CN104913761A CN201510385497.8A CN201510385497A CN104913761A CN 104913761 A CN104913761 A CN 104913761A CN 201510385497 A CN201510385497 A CN 201510385497A CN 104913761 A CN104913761 A CN 104913761A
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- chassis vehicle
- handcart
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- car frame
- chassis
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
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- Body Structure For Vehicles (AREA)
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Abstract
The invention relates to a functional handcart chassis deformation detection method and a functional handcart chassis deformation detection device. The functional handcart chassis deformation detection device comprises a rigid blocking piece which is arranged inside a handcart chamber and used to be in blocking fit with the front part of a moving vehicle frame before the moving vehicle frame reaches the destination of stroke, and further comprises a driving device used to apply a set constant driving force to the moving vehicle frame. By arranging the rigid blocking structure inside the handcart chamber and arranging the driving device used to apply a set constant driving force to the moving vehicle frame through a pushing mechanism, the amount of deformation delta1 of a chassis before the set driving force is applied and the amount of deformation delta2 of the chassis after the set driving force is applied can be measured respectively, the amount of deformation delta=delta2-delta1 of the chassis can be quantified, functional handcart chassis deformation detection is realized, and whether the strength of the chassis is qualified can be determined.
Description
Technical field
The present invention relates to deflection detection method and the pick-up unit of function handcart chassis vehicle.
Background technology
Middle-placed switch cabinet is a kind of switch cubicle, its full name is metal armouring middle disposed withdrawn type switchgear, belong to high voltage distribution installation, such as widely used KYN28 series middle-placed switch cabinet, because of features such as its function handcart are mid-, simple to operate, easy to maintenance, interchangeability is strong, obtain in 35kV, 10kV electric system and apply widely.Middle-placed switch cabinet is generally made up of metering house, handcart room, bus-bar room and four, cable vault compartment, and point three-decker, upper strata is metering house and bus-bar room (mutually isolated), and middle layer is handcart room, and lower floor is cable vault.Wherein, can load the handcart of several functions in handcart room, such as circuit breaker cart, isolation handcart, earth handcart, metering handcart, PT handcart, arrester handcart etc., rely on different function handcarts to realize different purposes.Function handcart generally comprises the chassis vehicle with motor-car frame and the function device be arranged on motor-car frame, motor-car frame along the longitudinal direction guiding movement assembles on a chassis, the pushing mechanism for driving guiding movement before and after described motor-car frame is provided with between the crossbeam at motor-car frame and chassis vehicle rear portion, pushing mechanism adopts screw-nut body, rear end can connect rocking handle, drives screw turns by rocking handle.
Find in long-term production, use procedure; switch cubicle dynamic/static contact often there will be the inadequate situation of Bite size; very easily cause dynamic/static contact loose contact, dynamic/static contact junction is occurred problems such as overheated burning is melted, contact arm fracture, even can develop into power grid accident.At present, in order to avoid there is above-mentioned situation, generally can detect contact Bite size, the Chinese patent that such as application number is 201420396190.9, Authorization Notice No. is CN 204007502 U is disclosed a kind of device measuring contact engagement depth just, but, occur one of reason that contact Bite size is inadequate be motor-car frame from initial position after thrust unit effect is moved to stroke end, the stressed meeting of motor-car frame changes and produces distortion, and only detection contact Bite size cannot be dealt with problems from root.And the intensity of function handcart chassis vehicle is the basis ensureing dynamic/static contact reliable contacts, and have much relations with the quality of product, the deflection of audit function handcart chassis vehicle just effectively can control the inadequate situation of dynamic/static contact Bite size, before assembling function handcart, namely judge whether chassis vehicle intensity meets the demands.But, yet there are no the method and device that are specifically designed to measuring ability handcart chassis vehicle deflection.
Summary of the invention
The object of this invention is to provide a kind of deflection detection method of function handcart chassis vehicle, to realize the detection of the deflection to function handcart chassis vehicle; Meanwhile, the invention provides a kind of for implementing the method and the pick-up unit that designs.
The technical scheme that in the present invention, the deflection detection method of function handcart chassis vehicle adopts is: the deflection detection method of function handcart chassis vehicle, and the method comprises the following steps: step one, the rigidity Stop structure of setting for coordinating with the anterior block of motor-car frame before motor-car frame arrival stroke end in handcart room; Motor-car frame on step 2, driving chassis vehicle is moved to stroke end by initial position, until chassis vehicle contacts described rigidity Stop structure; Step 3, the spacing L11 measuring left, center, right three place setting measurement point between the crossbeam front plan of chassis vehicle and the side plane of motor-car frame, L21, L31, the deflection defining now chassis vehicle is δ 1=L21-0.5*(L31-L11); Step 4, corresponding drive unit is relied on to apply the setting driving force of constant magnitude to motor-car frame, now again measure the spacing L12 of left, center, right three place setting measurement point between the crossbeam front plan of chassis vehicle and the side plane of motor-car frame, L22, L32, the deflection defining now chassis vehicle is δ 2=L22-0.5*(L32-L12); Step 5, calculates deflection δ=δ 2-δ 1 of chassis vehicle.
The method also comprises measures the step that n platform function handcart moves to the acting force M1 ~ Mn required for stroke end, and described setting driving force is the acting force corresponding with the maximal value in M1 ~ Mn.
The motor-car frame on chassis vehicle is driven to be produced by the screw-nut body on chassis vehicle to the acting force of stroke end movement, described drive unit comprises the wrest fixing spanner on the spin-ended leading screw be connected in described screw-nut body, and described setting driving force is produced by described wrest fixing spanner.
Described rigidity Stop structure is formed by the support column between the front portion for being supported on chassis vehicle and handcart room inwall.
Described support column is provided with three corresponding with before and after left, center, right three place setting measurement point, and the xsect of support column is for square and axle center place is provided with through hole.
The technical scheme that in the present invention, the device for testing deformation amount of function handcart chassis vehicle adopts is: the device for testing deformation amount of function handcart chassis vehicle, this device comprises for being arranged in handcart room to arrive the rigidity stop part coordinated with the anterior block of motor-car frame before stroke end at motor-car frame, also comprises the drive unit for the setting driving force to motor-car frame applying constant magnitude.
Described drive unit comprises the rocking handle on the leading screw in spin-ended assembling on a chassis screw-nut body, the axis of rotation place of described rocking handle is provided with spanner transmission connecting structure, and described drive unit also comprises for the spin-ended wrest fixing spanner be transferred on described spanner transmission connecting structure.
Described spanner transmission connecting structure is the axle sleeve being fixedly installed on rocking handle centre of gyration place, and described axle sleeve is provided with the spin-ended square hole plugged of square shaft for the output terminal being arranged on described wrest fixing spanner.
Described rigidity stop part is formed by the support column between the front portion for being supported on chassis vehicle and handcart room inwall, and the length of described support column is less than the length of stroke of motor-car frame.
Described support column is provided with for three corresponding with before and after the left, center, right three place setting measurement point on chassis vehicle, and the xsect of support column is for square and axle center place is provided with through hole.
The present invention adopts technique scheme, by arranging rigidity Stop structure in handcart room, and the drive unit being used for the setting driving force being applied constant magnitude by pushing mechanism to motor-car frame is set, can measuring chassis vehicle respectively, to be subject to the deflection set before and after driving force be δ 1, δ 2, thus deflection δ=δ 2-δ 1 of chassis vehicle can be quantized, realize the detection to the deflection of function handcart chassis vehicle, and then judge that whether the intensity of chassis vehicle is qualified, the quality of assurance function handcart chassis vehicle and operation stability, cost is low, easy to use, swift to operate, detection efficiency is high, the effect increasing work efficiency and avoid potential safety hazard can be played, contribute to the stability improving switchgear.And, adopt fore-and-aft survey deflection δ 1=L21-0.5*(L31-L11), deflection δ 2=L22-0.5*(L32-L12) and calculate deflection by the mode of δ=δ 2-δ 1, because chassis vehicle propelling stroke is very large for the impact of switch cubicle dynamic/static contact Bite size, its margin tolerance requires very high, the chassis vehicle deflection drawn by the method is accurate, accurately can judge whether its deflection meets tolerance.
Accompanying drawing explanation
Fig. 1 is the using state figure mono-of an embodiment of the device for testing deformation amount of function handcart chassis vehicle in the present invention;
Fig. 2 is the using state figure bis-of an embodiment of the device for testing deformation amount of function handcart chassis vehicle in the present invention;
Fig. 3 is the using state figure tri-of an embodiment of the device for testing deformation amount of function handcart chassis vehicle in the present invention;
Fig. 4 is the longitudinal sectional view of support column in Fig. 1;
Fig. 5 is the transverse sectional view of support column in Fig. 1;
Fig. 6 is the structural representation of drive unit in Fig. 1.
The name that in figure, each Reference numeral is corresponding is called: 1-handcart room, 2-chassis vehicle, 3-motor-car frame, 4-crossbeam, 5-screw-nut body, 6-leading screw, 7-support column, 8-rocking handle, 9-axle sleeve, 10-wrest fixing spanner.
Embodiment
In the present invention, an embodiment of the device for testing deformation amount of function handcart chassis vehicle is as shown in Fig. 1 ~ Fig. 6, comprise for being arranged in handcart room to arrive the support column coordinated with the anterior block of motor-car frame before stroke end at motor-car frame, also comprise for by the pushing mechanism on chassis vehicle to the rocking handle of the setting driving force of motor-car frame applying constant magnitude, axle sleeve and wrest fixing spanner.
Support column to be xsect be square and axle center place are provided with the cylinder of through hole, be supported between the front portion of chassis vehicle and handcart room inwall during use, form rigidity stop part, its length L is less than the stroke L0 that motor-car frame moves from initial position towards working position, to ensure that motor-car frame can normally movement, and this length L preferably gets smaller value, to simulate the state of motor-car frame when contacting with static contact better.
On the leading screw of the spin-ended assembling of rocking handle thrust unit on a chassis, axle sleeve is weldingly fixed on the outside of rocking handle crossbeam dorsad, axle sleeve is provided with the spin-ended square hole plugged of square shaft of the output terminal for wrest fixing spanner, wrest fixing spanner can be connected to moment of torsion axle sleeve applying setting to leading screw, and then applies the setting driving force of constant magnitude to motor-car frame by screw-nut body.Above-mentioned rocking handle, axle sleeve and wrest fixing spanner are configured for the drive unit of the setting driving force being applied constant magnitude by the pushing mechanism on chassis vehicle to motor-car frame.
When detecting the deflection of chassis vehicle, on motor-car frame, the intermediate point of selected left and right directions and the end center point 3 of motor-car frame left and right directions two side girder are as setting measurement point.In the present embodiment, the front end due to motor-car frame is plane, and therefore support column is provided with identical three, correspondingly with before and after three setting measurement points respectively arranges, to protect raising measuring accuracy.The through hole that support column axle center is arranged is circular hole, the leading screw termination that the middle position can avoiding motor-car frame front end is stretched out.
The basic stroke of current function handcart chassis vehicle has: 200mm-12kV, 300mm-24kV, and margin tolerance is generally-2mm ~ 0; According to actual requirement, chassis vehicle deflection can be detected, and make whether satisfactory judgement.The method of the deflection of measuring ability handcart chassis vehicle is as follows:
1) n platform is assembled complete function handcart and be placed into corresponding switch cabinet handcart indoor, measure n platform function handcart shake into switch cubicle from initial position and arrive the moment of torsion M1 ~ Mn formed needed for terminal (namely arriving working position), from M1 ~ Mn, get peak torque Mmax;
2) detected function handcart chassis vehicle is placed into test switch cabinet handcart indoor and make it be in initial position, now the crossbeam of chassis vehicle and switch cubicle are fixed; Test switch cubicle is the switch cubicle of actual production;
3) be separately fixed at along the longitudinal direction on the inwall of handcart room by three support columns, fixed position is corresponding with 3 place's setting measurement points, as shown in Figure 1;
4) be Mmax by the torque setting of wrest fixing spanner;
5) with rocking handle by motor-car frame from initial position shake into, until the rear end end contact of the front end of motor-car frame and support column;
6) measure spacing L11, L21, the L31 of left, center, right three place setting measurement point between the crossbeam front plan of chassis vehicle and the side plane of motor-car frame, the deflection defining now chassis vehicle is δ 1=L21-0.5*(L31-L11), as shown in Figure 2;
7) be connected on axle sleeve by wrest fixing spanner, rely on wrest fixing spanner to continue to shake precession vehicle frame, until the wrest fixing spanner that torque setting is Mmax is threaded off, now, motor-car frame is subject to the acting force of the constant magnitude that screw-nut body applies.
8) measure spacing L12, L22, the L32 of left, center, right three place setting measurement point between the crossbeam front plan of chassis vehicle and the side plane of motor-car frame, the deflection defining now chassis vehicle is δ 2=L22-0.5*(L32-L12), as shown in Figure 3;
9) calculate deflection δ=δ 2-δ 1 of function handcart chassis vehicle, according to deflection δ data, can judge whether chassis vehicle intensity meets the demands.
An embodiment of the deflection detection method of function handcart chassis vehicle in above-mentioned detection method and the present invention.Certainly, above-mentioned detection device and method are also suitable for for the chassis vehicle of other strokes.
In the above-described embodiments, test switch cubicle is the switch cubicle of actual production, and rigidity Stop structure is formed by support column, and drive unit employs wrest fixing spanner.In other embodiments, Test Switchboard cabinet can be also the frock of simulation actual production switch cubicle, and rigidity Stop structure also can replace with the form beyond support column, such as, arrange block at handcart room internal fixtion, or directly in frock, arranges fixed stop; And drive unit also can replace with other forms according to actual conditions, such as do not adopt rocking handle, direct employing wrest fixing spanner or have torque setting function electric wrench drive guide screw movement, for another example in order to improve testing efficiency, screw-nut body can not be adopted, do not pass through thrust unit, and directly adopt pneumatic cylinder or hydraulic cylinder etc. to apply the setting driving force of constant magnitude to motor-car frame, the size of setting driving force can be realized by the valve on adjustment pneumatic cylinder or hydraulic cylinder, is convenient to like this realize Aulomatizeted Detect.
In addition, in the above-described embodiments, setting driving force is the acting force corresponding with the maximal value in M1 ~ Mn, in other embodiments, this setting driving force also can adopt other values, the mean value of such as M1 ~ Mn, during design switch cubicle, function handcart moves to the design load etc. of the acting force required for stroke end for another example.Moreover in above-described embodiment, the position of 3 place's setting measurement points also can adjust, and is divided into left, center, right three place between the crossbeam front plan and the side plane of motor-car frame of chassis vehicle.
Claims (10)
1. the deflection detection method of function handcart chassis vehicle, is characterized in that the method comprises the following steps: step one, the rigidity Stop structure of setting for coordinating with the anterior block of motor-car frame before motor-car frame arrival stroke end in handcart room; Motor-car frame on step 2, driving chassis vehicle is moved to stroke end by initial position, until chassis vehicle contacts described rigidity Stop structure; Step 3, the spacing L11 measuring left, center, right three place setting measurement point between the crossbeam front plan of chassis vehicle and the side plane of motor-car frame, L21, L31, the deflection defining now chassis vehicle is δ 1=L21-0.5*(L31-L11); Step 4, corresponding drive unit is relied on to apply the setting driving force of constant magnitude to motor-car frame, now again measure the spacing L12 of left, center, right three place setting measurement point between the crossbeam front plan of chassis vehicle and the side plane of motor-car frame, L22, L32, the deflection defining now chassis vehicle is δ 2=L22-0.5*(L32-L12); Step 5, calculates deflection δ=δ 2-δ 1 of chassis vehicle.
2. the deflection detection method of function handcart chassis vehicle according to claim 1, it is characterized in that: the method also comprises measures the step that n platform function handcart moves to the acting force M1 ~ Mn required for stroke end, and described setting driving force is the acting force corresponding with the maximal value in M1 ~ Mn.
3. the deflection detection method of function handcart chassis vehicle according to claim 1 and 2, it is characterized in that: drive the motor-car frame on chassis vehicle to be produced by the screw-nut body on chassis vehicle to the acting force of stroke end movement, described drive unit comprises the wrest fixing spanner on the spin-ended leading screw be connected in described screw-nut body, and described setting driving force is produced by described wrest fixing spanner.
4. the deflection detection method of function handcart chassis vehicle according to claim 1 and 2, is characterized in that: described rigidity Stop structure is formed by the support column between the front portion for being supported on chassis vehicle and handcart room inwall.
5. the deflection detection method of function handcart chassis vehicle according to claim 4, is characterized in that: described support column is provided with three corresponding with before and after left, center, right three place setting measurement point, and the xsect of support column is for square and axle center place is provided with through hole.
6. for implementing the device for testing deformation amount of the function handcart chassis vehicle of the deflection detection method of function handcart chassis vehicle as claimed in claim 1, it is characterized in that: this device comprises for being arranged in handcart room to arrive the rigidity stop part coordinated with the anterior block of motor-car frame before stroke end at motor-car frame, also comprises the drive unit for the setting driving force to motor-car frame applying constant magnitude.
7. the device for testing deformation amount of function handcart chassis vehicle according to claim 6, it is characterized in that: described drive unit comprises the rocking handle on the leading screw in spin-ended assembling on a chassis screw-nut body, the axis of rotation place of described rocking handle is provided with spanner transmission connecting structure, and described drive unit also comprises for the spin-ended wrest fixing spanner be transferred on described spanner transmission connecting structure.
8. the device for testing deformation amount of function handcart chassis vehicle according to claim 7, it is characterized in that: described spanner transmission connecting structure is the axle sleeve being fixedly installed on rocking handle centre of gyration place, described axle sleeve is provided with the spin-ended square hole plugged of square shaft for the output terminal being arranged on described wrest fixing spanner.
9. the device for testing deformation amount of the function handcart chassis vehicle according to claim 6 or 7 or 8, it is characterized in that: described rigidity stop part is formed by the support column between the front portion for being supported on chassis vehicle and handcart room inwall, and the length of described support column is less than the length of stroke of motor-car frame.
10. the device for testing deformation amount of function handcart chassis vehicle according to claim 9, it is characterized in that: described support column is provided with for three corresponding with before and after the left, center, right three place setting measurement point on chassis vehicle, the xsect of support column is for square and axle center place is provided with through hole.
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| CN201510385497.8A CN104913761B (en) | 2015-06-30 | 2015-06-30 | The deformation quantity measuring method and detection device of function handcart chassis vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510385497.8A CN104913761B (en) | 2015-06-30 | 2015-06-30 | The deformation quantity measuring method and detection device of function handcart chassis vehicle |
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| CN104913761B CN104913761B (en) | 2019-11-08 |
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Citations (6)
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| CN2563797Y (en) * | 2002-07-24 | 2003-07-30 | 汕头经济特区电器仪表成套厂 | Hand vehicle type electric switch cabinet driving device |
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| JP2010288344A (en) * | 2009-06-10 | 2010-12-24 | Japan Ae Power Systems Corp | Breaker drawer device |
| CN202915892U (en) * | 2012-10-29 | 2013-05-01 | 广东生益科技股份有限公司 | Apparatus for testing deformation degree of flat board |
| CN104215195A (en) * | 2014-09-23 | 2014-12-17 | 苏州精创光学仪器有限公司 | Glass panel automatic warping degree measurement instrument |
| CN104369267A (en) * | 2014-10-30 | 2015-02-25 | 中铁三局集团有限公司 | Device and method for detecting deformation of tensioned cross beams of CRTS III two-way pretensioned prestressed track slab |
-
2015
- 2015-06-30 CN CN201510385497.8A patent/CN104913761B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2563797Y (en) * | 2002-07-24 | 2003-07-30 | 汕头经济特区电器仪表成套厂 | Hand vehicle type electric switch cabinet driving device |
| JP2010288344A (en) * | 2009-06-10 | 2010-12-24 | Japan Ae Power Systems Corp | Breaker drawer device |
| CN201498906U (en) * | 2009-08-28 | 2010-06-02 | 常州森吉制药设备制造有限公司 | Electric chassis vehicle |
| CN202915892U (en) * | 2012-10-29 | 2013-05-01 | 广东生益科技股份有限公司 | Apparatus for testing deformation degree of flat board |
| CN104215195A (en) * | 2014-09-23 | 2014-12-17 | 苏州精创光学仪器有限公司 | Glass panel automatic warping degree measurement instrument |
| CN104369267A (en) * | 2014-10-30 | 2015-02-25 | 中铁三局集团有限公司 | Device and method for detecting deformation of tensioned cross beams of CRTS III two-way pretensioned prestressed track slab |
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| CN104913761B (en) | 2019-11-08 |
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Granted publication date: 20191108 Termination date: 20200630 |