A kind of railway freight-car crank throw axis angle measurement apparatus and method
Technical field
The present invention relates to a kind of measurement apparatus, especially with regard to a kind of railway freight-car crank throw axis angle measurement apparatus and side
Method.
Background technology
Set up in the bottom door opener of funnel type railway freight-car and be equipped with crank throw, one end of crank throw be arranged on power transmission shaft with
Drive axis, the other end is connected by round pin with connecting rod, and the rotary motion of power transmission shaft is changed into the linear movement of connecting rod.In leakage
Struggle against in the bottom door opener of type railway lorry, it is highly important to carry out accurate control to the opened and closed positions that bottom is opened the door, therefore is needed
The angle of each crank throw axis in the door opener of bottom is measured and controlled to adjust bottom enabling opened and closed positions.Present crank shaft
The method that the angular surveying of line is typically applied in combination using line, plumb line and bevel protractor measures operation.Because bottom is opened the door
The crank throw centered is filled to be normally in lower car body small space, therefore the measurement and adjustment of crank throw need many people to be grasped
Make.But it is due to operation inconvenience, it is often necessary to carry out measurement and adjustment repeatedly, it is not only time-consuming, laborious, and reduce work
Efficiency.
The content of the invention
In view of the above-mentioned problems, it is an object of the invention to provide a kind of easy to operate, the quick and accurate railway freight-car of measurement
Crank throw axis angle measurement apparatus and method.
To achieve the above object, the present invention takes following technical scheme:A kind of railway freight-car crank throw axis angle measurement dress
Put, it is characterised in that:It includes a frame plate, and the frame plate is connected on described by a upper mounted plate, a bottom plate and one
Fixed plate and the connecting plate of the bottom plate are constituted;Lacking in isosceles triangle is offered in the bottom of fixed plate
Mouthful;A fixed block is fastenedly connected in the side of fixed plate, it is in isosceles triangle that the bottom of the fixed block, which offers one,
The first V-shaped groove, first V-shaped groove on the fixed block aligns with the breach on fixed plate;Described
A rectangle chute arranged along the centerline direction of first V-shaped groove on the fixed block is provided with bottom plate;
One movable vee-block device is set in the rectangle chute;The movable vee-block device includes one and connected with the rectangle slide
The sliding block connect, the 2nd V on second V-shaped groove for being in isosceles triangle, the sliding block is set at the top of the sliding block
Shape groove is relative with first V-shaped groove on the fixed block;A screwed hole is offered in the bottom of the sliding block, in the spiral shell
An adjusting screw rod for being used to adjust sliding block position in the rectangle chute is screwed togather in pit;It is tight in the sliding block rear end face
It is solidly connected a cover plate for being used to prevent the sliding block from coming off out of described rectangle chute;One jiao is fastenedly connected on the connecting plate
Measurement apparatus is spent, the angle measurement unit is in the not homonymy of the frame plate with the fixed block.
The angle measurement unit includes the protecting box of a rear end opening, and the inner chamber of the protecting box is placed with a digital water
Flat inclinometer;An observation panel is offered in the front end face of the protecting box;A lattice are provided with the middle part of the bottom surface of the protecting box
Gear is raised, and keeping off raised both sides in the lattice is respectively arranged with an inclined-plane down and right-angle surface and the digital level inclinometer bottom
The wedge of contact;Slided between the bottom surface of the wedge and the protecting box and be provided with an inclined-plane adjustment block;Protected described
Shield box two sides bottom is offered respectively is plugged with a microspur being screwed in the inclined-plane adjustment block in a counterbore, the counterbore
Adjusting screw.
Bipeltate plate is set in the gap between the protecting box and the digital level inclinometer.
The opening angle scope of first V-shaped groove and second V-shaped groove is 90 °~120 °;In first V-shaped groove
An elongated square groove can be opened up respectively with the bottom of second V-shaped groove.
Multiple mitigation deadweights are opened up in the frame plate and are easy to the hand-held hand-hold hole of testing staff.
Each corner of outline of the frame plate is set to arc-shaped.
A kind of measuring method of described device, it comprises the following steps:
1) first by calibration block fixed placement on levelling bench, calibration block is that a two ends have and the first V-shaped groove respectively
The type face being engaged with the second V-shaped groove shape;
2) adjusting screw rod is rotated, the second V-shaped groove on the first V-shaped groove and sliding block of fixed block is clamped on calibration block respectively
Two ends;
3) gap between measurement calibration block two ends type face and the first V-shaped groove and the second V-shaped groove, when gap is zero, beats
Open angle measurement unit and observe its reading;When gap is not zero, rotation adjusting screw rod, the first vee-block of regulation and the 2nd V are unclamped
The position of shape block, zero is adjusted to until adjusting to the gap between calibration block two ends type face and the first V-shaped groove and the second V-shaped groove;
4) when open angle measurement apparatus observes its reading, when reading is shown as " 90 ° ", adjusting screw rod is unclamped, is taken out
Calibration block, completes to check;When reading is not " 90 ° ", microspur adjusting screw is rotated, until making its reading be adjusted to after " 90 ° "
Complete to check work;
5) after the completion of checking, power transmission shaft is first passed through to the first V-shaped groove of fixed block, and is stuck in the external cylindrical surface of power transmission shaft
In first V-shaped groove;
6) simultaneously, round pin axle is passed through to the second V-shaped groove of sliding block, and by the adjusting screw rod in rotary slider, makes sliding block
The position of external cylindrical surface of round pin axle can be blocked by being moved to its second V-shaped groove;
7) and then open angle measurement apparatus, two mounting hole central axis and the ground of crank throw can be measured by observing its reading
The angle angle value of vertical line and/or surface water horizontal line.
The present invention is due to taking above technical scheme, and it has advantages below:1st, the present invention is due in the upper solid of frame plate
A V-shaped groove is respectively arranged with fixed board and bottom plate, and the sliding block being located on bottom plate is slidably, therefore measuring
When be suitable for the crank throw demand of different installation apertures and different mounting hole distances between center line.2nd, the present invention is due at digital level angle
Protecting box is provided with outside degree instrument, and adds in protecting box bipeltate plate, therefore digital level angle gauge can be carried out
Anti-vibration protected, device is damaged caused by can also effectively preventing in unfavorable operating environment due to colliding with, beating.3rd, it is of the invention
The consistent microspur adjustment spiral shell for wearing inclined-plane adjustment block is plugged with a counterbore, counterbore due to being opened up respectively in protecting box two sides bottom
Nail, therefore can be by rotating microspur adjusting screw come adjustable inclined surface apparatus adjustment block and the relative position of wedge, and then to numeral
The position of level angle gauge and measurement accuracy are calibrated.4th, microspur adjusting screw of the invention is due to being plugged in counterbore, because
This can effectively prevent microspur adjusting screw at work unintentional rotation and cause digital level inclinometer datum-plane angle lose
It is accurate.5th, the present invention in frame plate due to offering multiple hand-hold holes, therefore can be easy to detect people while deadweight is mitigated
Member's operation.6th, the present invention is due to being configured with special calibration block, and it is quick, accurate that each measuring basis of apparatus of the present invention can be carried out
Positioning and calibration.
Brief description of the drawings
Fig. 1 is the main structure diagram of the present invention;
Fig. 2 is Fig. 1 right side structural representation;
Fig. 3 is Fig. 1 left view structural representation;
Fig. 4 is the structural representation of Fig. 2 Section A-A;
Fig. 5 is the overall structure diagram of the inclinometer of the present invention;
Fig. 6 is the structural representation of working condition of the present invention;
Fig. 7 is Fig. 6 left view;
Fig. 8 is present invention calibration schematic diagram.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and examples.
As shown in figures 1-4, the present invention includes a frame plate 1, and frame plate 1 is by a upper mounted plate 11, the and of a bottom plate 12
The connecting plate 13 of one connection upper mounted plate 11 and bottom plate 12 is constituted;It is in isosceles three that one is offered in the bottom of upper mounted plate 11
Angular breach 111;A fixed block 2 is fastenedly connected in the side of upper mounted plate 11, it is in isosceles that the bottom of fixed block 2, which offers one,
V-shaped groove 21 on the V-shaped groove 21 of triangle, fixed block 2 aligns with the breach 111 on upper mounted plate 11;On bottom plate 12
It is provided with a rectangle chute 121 arranged along the centerline direction of the V-shaped groove 21 on fixed block 2;Set in rectangle chute 121
One movable vee-block device 3;Movable vee-block device 3 includes a sliding block 31 being slidably connected with rectangle chute 121, in sliding block 31
Top sets the V-shaped groove 36 on a V-shaped groove 36 for being in isosceles triangle, sliding block 31 relative with the V-shaped groove 21 on fixed block 2;
The bottom of sliding block 31 offers a screwed hole 33, and one is screwed togather in screwed hole 33 is used for adjusting slider 31 in rectangle chute 121
The adjusting screw rod 34 of position;Being fastenedly connected one in the rear end face of sliding block 31 is used for what anti-limited slip block 31 came off out of rectangle chute 121
Cover plate 35;An angle measurement unit 4 is fastenedly connected on connecting plate 13, angle measurement unit 4 is in frame plate 1 with fixed block 2
Not homonymy.
In above-described embodiment, as shown in figure 5, angle measurement unit 4 includes the protecting box 41 of a rear end opening, protecting box 41
Inner chamber be placed with a digital level inclinometer 42.Offering one in the front end face of protecting box 41 is used to manipulating and observing digital water
The observation panel 43 of the flat reading of inclinometer 42.Lattice gear projection 45 is provided with the middle part of the bottom surface of protecting box 41, in lattice gear projection 45
Both sides are respectively arranged with an inclined-plane down and the wedge 44 that is contacted with the bottom of digital level inclinometer 42 of right-angle surface.In wedge
44 and protecting box 41 bottom surface between slide be provided with an inclined-plane adjustment block 46.One is offered respectively in the two sides bottom of protecting box 41
A microspur adjusting screw 48 being screwed in inclined-plane adjustment block 46 is plugged with counterbore 47, counterbore 47, is adjusted by rotating microspur
Screw 48 can adjust the relative position of inclined-plane adjustment block 46 and wedge 45, and then the position to digital level angle gauge 42 and survey
Accuracy of measurement is calibrated.
In above-described embodiment, bipeltate plate can be installed in the gap between protecting box 41 and digital level inclinometer 42 additional
49, it is shockproof and fixed for being carried out to digital level angle gauge 42.
In above-described embodiment, the opening angle of breach 111 should be greater than the opening angle of V-shaped groove 21, energy during in order to measure
Enough other parts through power transmission shaft 5 and thereon measure operation.The opening angle scope of V-shaped groove 21 and V-shaped groove 36 is 90 °
~120 °, an elongated square groove 6 can be opened up respectively in the bottom of V-shaped groove 21 and V-shaped groove 36, set for that can be accommodated in measurement
It is equipped with the axle of key.
In above-described embodiment, multiple mitigation deadweights can be opened up in frame plate 1 and are easy to the hand-held hand-hold hole of testing staff
16。
In above-described embodiment, each corner of outline of frame plate 1 may be configured as arc-shaped, in order to onsite application, prevent
Only turning is collided with and causes frame plate 1 to be deformed.
As can be seen from figures 6 to 8, according to a kind of railway freight-car crank throw axis angle measurement apparatus provided in above-described embodiment,
Present invention also offers a kind of measuring method of the device, it comprises the following steps:
1) first by the fixed placement of calibration block 7 in (as shown in Figure 8) on levelling bench, calibration block 7 is that a two ends have respectively
There is the type face being engaged with V-shaped groove 21 and the shape of V-shaped groove 36;
2) adjusting screw rod 34 is rotated, the V-shaped groove 36 of the V-shaped groove 21 of fixed block 2 and sliding block 31 is clamped on calibration block 7 respectively
Two ends;
3) gap between the measurement two ends type face of calibration block 7 and V-shaped groove 21 and V-shaped groove 36, when gap is zero, opens number
Word level angle gauge 42 observes its reading;When gap is not zero, rotation adjusting screw rod 34, regulation vee-block 2 and vee-block are unclamped
32 position, zero is adjusted to until adjusting to the gap between the two ends type face of calibration block 7 and V-shaped groove 21 and V-shaped groove 36;
4) open digital level inclinometer 42 and observe its reading, when the reading on digital level inclinometer 42 is shown as
When " 90 ° ", adjusting screw rod 34 is unclamped, calibration block 7 is taken out, completes to check;When reading is not " 90 ° ", rotation microspur adjustment spiral shell
Nail 48, completes to check work afterwards until making its reading be adjusted to " 90 ° ";
5) after the completion of checking, power transmission shaft 5 is first passed through to the V-shaped groove 21 (as shown in Figure 6, Figure 7) of fixed block 2, and makes transmission
The external cylindrical surface of axle 5 is stuck in V-shaped groove 21;
6) simultaneously, round pin axle 9 is passed through to the V-shaped groove 36 of sliding block 31, and by the adjusting screw rod 34 in rotary slider 31, is made
Sliding block 31 is moved to the position that its V-shaped groove 36 can block the external cylindrical surface of round pin axle;
7) the digital level inclinometer 42 and then in open angle measurement apparatus 4, observes the reading on its display screen
Measure two mounting hole central axis lines perpendicular to the ground of crank throw 8 and/or the angle angle value of surface water horizontal line.
The various embodiments described above are merely to illustrate the present invention, wherein the structure of each part, connected mode etc. are all can be
Change, every equivalents carried out on the basis of technical solution of the present invention and improvement should not be excluded the present invention's
Outside protection domain.