CN210346572U - Indirect angle measuring device - Google Patents
Indirect angle measuring device Download PDFInfo
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- CN210346572U CN210346572U CN201921358322.8U CN201921358322U CN210346572U CN 210346572 U CN210346572 U CN 210346572U CN 201921358322 U CN201921358322 U CN 201921358322U CN 210346572 U CN210346572 U CN 210346572U
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Abstract
The utility model belongs to the technical field of angular surveying, specific saying relates to an indirect angle measuring device, is applicable to the occasion that can not directly laminate the measurement, is particularly useful for the actual work angle of baffle in the indirect monitoring overgrate air adjusting plate of combustor air door. The main technical scheme is as follows: including the fillet chi of measuring range not less than 90 degrees, set up detection ruler on the fillet chi side, detect the ruler with the side of fillet chi is perpendicular, set up the measurement marking in the fillet chi, the one end setting of measuring the marking is in the centre of a circle department of fillet chi, its other end is in move about in the scale at the circular arc border of fillet chi. The novel indirect angle measuring device indirectly measures the included angle of the object by utilizing linear translation and has the characteristics of simple structure and convenient use.
Description
Technical Field
The utility model belongs to the technical field of angular surveying, specific saying relates to an indirect angle measuring device, is applicable to the occasion that can not directly laminate the measurement, is particularly useful for the actual work angle of baffle in the indirect monitoring overgrate air adjusting plate of combustor air door.
Background
The burner is the main component of the coal powder furnace combustion equipment, and has the functions of sending coal powder and air required for combustion into the hearth, reasonably organizing coal powder airflow, and well mixing to promote the fuel to quickly and stably catch fire and burn. The primary air of the boiler burner is fuel air, is sent out by a primary fan and carries pulverized coal, and enters a furnace chamber for combustion; the secondary air is combustion-supporting air and is sent out by a blower, and the main functions of the secondary air are to supply enough oxygen to the boiler and tangential power required by combustion.
The secondary air flow is controlled by movable vanes (wind deflectors) in the secondary air duct. The opening degree of the blades (the included angle between the blades and the tangent line of the wind adjusting plate) can be changed through a transmission device. When the vanes are fully opened, the external secondary air volume reaches the maximum, and the external secondary air is approximately direct current jet flow at the moment. Under the influence of the outer secondary air, the rotating strength of the whole jet flow ejected from the combustor is weakened, the airflow is elongated, and the inner reflux area is reduced. When the blades are gradually closed, the external secondary air volume is gradually reduced, so that the rotational flow strength of the whole jet flow is increased, the air flow is shortened, and the internal reflux area is gradually enlarged.
After the pulverized coal airflow is ignited, the input mode of the secondary air plays an important role in the ignition stability and the burnout process. The high-capacity boiler is particularly required to pay attention to the capability of secondary air penetrating through flame, so the requirement on the regulation and control of the angle of the secondary air is particularly accurate, an adjusting handle of a transmission device is generally arranged outside a shell of a combustor, the angle of a wind shield is preset, in the actual work, the wind shield is used for the impact of wind power, the actual working angle of the wind shield can generate errors, a worker needs to enter an air port operating chamber, the wind shield is actually monitored, the wind shield is located in an air adjusting disc and is covered by fixed connecting parts such as a supporting shaft and the like and can only be contacted with the local part, and the conventional angle measuring tool cannot be directly attached to the wind shield to measure the included angle between the wind shield and.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an utilize the indirect object contained angle of measurement of linear translation and simple structure, convenient to use's novel angle measurement device.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides an indirect angle measuring device for the manual monitoring of combustor overgrate air angle, is in including measuring range not less than 90 degrees fillet chi, sets up detection ruler on the fillet chi side, detect the ruler with the side of fillet chi is perpendicular, set up in the fillet chi and measure the marking, the one end setting of measuring the marking is in the centre of a circle department of fillet chi, its other end is in move about in the scale at the circular arc border of fillet chi.
The indirect angle measuring device further comprises:
the measuring marking is arranged on the central axis of the positioning ruler, and the center of the circle of the fillet ruler is positioned on the central axis of the positioning ruler and is connected with the positioning ruler in a rotating mode;
the circle center of the fillet ruler is movably connected with the positioning ruler through a bolt, and the fillet ruler and the positioning ruler are provided with through holes for the screw to penetrate through and rotate relatively around the screw;
a plurality of through holes are formed in the central axis of the positioning ruler and are movably connected with the through holes in the circle center of the fillet ruler through bolts;
a through groove parallel to the side edge is formed in the edge where the fillet ruler is connected with the detection ruler, the end of the detection ruler is connected with a sleeve sleeved on the side edge of the through groove, and the sleeve can slide along the through groove and can also rotate around the side edge of the through groove;
the detection ruler is of a telescopic sleeving structure, an extension ruler is arranged in the detection ruler, and a buckling mechanism is arranged on the detection ruler and used for fixing the extension ruler after the extension ruler is extended;
the measuring mark line is light emitted by a laser pen, the scales on the arc edge of the fillet ruler are fluorescent lines, and the tail end of the laser pen is rotatably connected with the circle center of the fillet ruler.
Compared with the prior art, the utility model provides an indirect angle measuring device has following advantage: the novel indirect angle measuring device comprises a fillet ruler with a measuring range not less than 90 degrees and a detecting ruler arranged on the side edge of the fillet ruler, and is simple in structure and convenient to manufacture, the detecting ruler is perpendicular to the side edge of the fillet ruler, the right-angle edge at the end part of the detecting ruler is abutted against the local part (or the linear scale is overlapped with the linear scale) of a hidden object, so that the surface line shape of the hidden object is overlapped with the side edge of the fillet ruler, a measuring mark line is arranged in the fillet ruler, the line shape can be actually attached and exposed, the measuring mark line moves in the scale of the circular arc edge of the fillet ruler, and the included angle between the surface line shape of the hidden object and the externally exposed line shape can be obtained, so that the indirect detecting device has the advantages; and secondly, because the edges of the fillet square and the detection ruler are connected are provided with the through grooves parallel to the side edges, the end part and the suit of the detection ruler are connected with the side edges of the through grooves in a sleeving manner, the sleeve can slide along the through grooves and can also rotate around the side edges of the through grooves, the detection ruler can swing at a plurality of angles, the hidden linear translation of a plurality of dimensions in the three-dimensional space is realized, and the application range of indirect measurement is wider.
Drawings
Fig. 1 is a schematic structural diagram of an indirect angle measuring device of the present invention;
FIG. 2 is a schematic view of the indirect angle measuring device in use;
fig. 3 is another schematic structural diagram of the indirect angle measuring device.
Detailed Description
The structure and the operation principle of the indirect angle measuring device provided by the present invention will be further described in detail with reference to the accompanying drawings.
Referring to fig. 1, the structure of an indirect angle measuring device according to the present invention is schematically illustrated. The structure that constitutes this novel indirect angle measuring device includes that measuring range is not less than 90 degrees fillet chi 1, sets up the detection ruler 2 on fillet chi 1 side 11, detection ruler 2 with the side 11 of fillet chi 1 is perpendicular, sets up in the fillet chi 1 and measures marking 3, measures marking 3's one end and sets up in the centre of a circle department of fillet chi 1, and its other end moves about in the scale at the circular arc border of fillet chi 1.
The working principle is as follows: as shown in fig. 2, when the device is used for measuring the angle of secondary air in a combustor, the straight line edge at the end part of the detection ruler 2 is attached to the surface of a wind shield B (hidden object) in a wind adjusting disc C of the combustor, because the detection ruler 2 is perpendicular to the side edge 11 of the fillet ruler 1, the linear B of the surface of the wind shield B is translated to the side edge 11 of the fillet ruler 1, a measurement marking line 3 is arranged in the fillet ruler 1, the measurement marking line 3 is superposed with the external exposed linear a (the straight line where two adjacent support shafts corresponding to the wind shield in the wind adjusting disc are located, namely, the tangent line a of the wind adjusting disc corresponding to the wind shield) and the numerical value of the measurement marking line 3 in the edge scale of the fillet ruler 1 is the actual working angle theta of the wind.
In the structure constituting the above-described novel indirect angle measuring apparatus,
in order to facilitate alignment with the externally exposed linear a, the measuring mark line 3 is arranged on the central axis of the positioning ruler 4, the circle center of the fillet ruler 1 is positioned on the central axis of the positioning ruler 4 and is in rotating connection with the central axis, and the positioning ruler 4 is attached to the roots of two adjacent support shafts A in the air adjusting disc C, so that a tangent line a on the air adjusting disc C corresponding to the wind shield B is obtained;
the circle center of the fillet ruler 1 is movably connected with the positioning ruler 4 through the bolt 51, the fillet ruler 1 and the positioning ruler 4 are provided with through holes for the screw to penetrate through and rotate around the screw relatively, and the fillet ruler has the characteristics of simple structure and convenience in manufacturing;
preferably, the central axis of the positioning ruler 4 is provided with a plurality of through holes 52 for movably connecting with the through holes at the circle center of the fillet ruler 1 through bolts 51, that is, the fillet ruler 1 and the positioning ruler 4 are of a detachable connection structure, which is convenient for adjustment of practical application, the fillet ruler 1 can be arranged at a plurality of positions of the positioning ruler 4, so that the effective alignment length of the positioning ruler 4 is prolonged, and the translation of the detection angle of the detection ruler 2 is also convenient;
as a preferred embodiment, as shown in fig. 3, a through groove 12 parallel to the side edge 11 is disposed at the edge where the fillet ruler 1 is connected to the detection ruler 2, the end of the detection ruler 2 is connected to a sleeve 21 sleeved on the side edge 121 of the through groove, and the sleeve 21 can slide along the through groove 12 and also can rotate around the side edge 121 of the through groove, so that the detection angle and the width of the detection surface of the detection ruler 2 are increased, the hidden linear translation of the three-dimensional space is realized, and the application range is wider;
in order to increase the detection length of the detection ruler 2, the detection ruler 2 is of a telescopic sleeving structure, an extension ruler 22 is arranged in the detection ruler 2, and a buckling mechanism 23 is arranged on the detection ruler 2 and used for fixing the extension ruler 22 after being extended, so that the detection ruler is suitable for detecting a wind shield B with a large depth in a large boiler, such as a boiler burner of a power plant;
because the wind gap control chamber of power plant boiler combustor is dark, inconvenient visual observation, from the actual operation of being convenient for, above-mentioned light that measures marking 3 for sending by laser pen 6, the scale at 1 circular arc border of fillet chi is the fluorescence line, the end of laser pen 6 is rotated with the centre of a circle of fillet chi 1 and is connected, the central axis department of locating plate 4 sets up long logical groove 53, the end of laser pen 6 passes through bolt 51 with the centre of a circle of fillet chi 1 and is connected the arbitrary point that sets up at long logical groove 53, adjust well between the light that takes place through laser pen 6, be convenient for observe and the position is accurate, the scale at 1 circular arc border of fillet chi is the fluorescence line, under the dark condition of light, also can the quick observation angle value.
Claims (7)
1. The utility model provides an indirect angle measuring device for manual monitoring of combustor overgrate air angle, its characterized in that: including the fillet chi of measuring range not less than 90 degrees, set up detection ruler on the side of fillet chi, detect the ruler with the side of fillet chi is perpendicular, set up the measurement marking in the fillet chi, the one end setting of measuring the marking is in the centre of a circle department of fillet chi, its other end is in move about in the scale at the circular arc border of fillet chi.
2. An indirect angle measuring device according to claim 1, wherein: the measuring marking line is arranged on the central axis of the positioning ruler, and the circle center of the fillet ruler is positioned on the central axis of the positioning ruler and is connected in a rotating mode.
3. An indirect angle measuring device according to claim 2, wherein: the circle center of the round angle ruler is movably connected with the positioning ruler through bolts, and the round angle ruler and the positioning ruler are provided with through holes for the screw rod to penetrate through and rotate relatively around the screw rod.
4. An indirect angle measuring device according to claim 3, wherein: and a plurality of through holes are formed in the central axis of the positioning ruler and are movably connected with the through holes in the circle center of the fillet ruler through bolts.
5. An indirect angle measuring device according to claim 1, wherein: the edge that the fillet square is connected with the detection ruler sets up the logical groove parallel with the side, the tip and the suit of surveying the ruler be in lead to groove side bushing, the sleeve pipe can be followed lead to the groove and slide or rotate around leading to the groove side.
6. An indirect angle measuring device according to claim 1, wherein: the detection ruler is of a telescopic sleeving structure, an extension ruler is arranged in the detection ruler, and a buckle mechanism is arranged on the detection ruler and used for fixing the extension ruler after the extension ruler is extended.
7. An indirect angle measuring device according to claim 1, wherein: the measuring scale line is light emitted by a laser pen, the scale on the arc edge of the fillet ruler is a fluorescent line, and the tail end of the laser pen is rotatably connected with the circle center of the fillet ruler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921358322.8U CN210346572U (en) | 2019-08-21 | 2019-08-21 | Indirect angle measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921358322.8U CN210346572U (en) | 2019-08-21 | 2019-08-21 | Indirect angle measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN210346572U true CN210346572U (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921358322.8U Active CN210346572U (en) | 2019-08-21 | 2019-08-21 | Indirect angle measuring device |
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| CN (1) | CN210346572U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112504064A (en) * | 2020-10-20 | 2021-03-16 | 宝钢特钢韶关有限公司 | Device for measuring overall dimension and assembly precision of V-shaped roller and using method thereof |
-
2019
- 2019-08-21 CN CN201921358322.8U patent/CN210346572U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112504064A (en) * | 2020-10-20 | 2021-03-16 | 宝钢特钢韶关有限公司 | Device for measuring overall dimension and assembly precision of V-shaped roller and using method thereof |
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Address after: 053000 No. 3389, Shengli West Road, Taocheng District, Hengshui City, Hebei Province Patentee after: Guoneng Hebei Hengfeng Power Generation Co.,Ltd. Address before: 053000 No. 3389, Shengli West Road, Taocheng District, Hengshui City, Hebei Province Patentee before: HEBEI HENGFENG POWER GENERATION CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |