CN220472764U - Reflecting plate lifting device for radar level gauge precision detection - Google Patents
Reflecting plate lifting device for radar level gauge precision detection Download PDFInfo
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- CN220472764U CN220472764U CN202321822062.1U CN202321822062U CN220472764U CN 220472764 U CN220472764 U CN 220472764U CN 202321822062 U CN202321822062 U CN 202321822062U CN 220472764 U CN220472764 U CN 220472764U
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Abstract
The utility model provides a reflecting plate lifting device for radar level gauge precision detection, which is characterized in that: the reflecting plate is positioned in the frame, and the metal plate of the reflecting plate is arranged in the frame; the outer side of the frame is fixed with a vertical bidirectional cylinder; the frame is provided with an upper side pulley group mechanism and a lower side pulley group mechanism which are respectively connected with a bidirectional cylinder and a frame. The utility model improves the degree of test automation, improves the working efficiency, and ensures that the structure is more compact and the transmission is smooth.
Description
Technical Field
The utility model relates to the technical field of radar level gauge precision detection, in particular to a reflecting plate lifting device for radar level gauge precision detection.
Background
The radar level gauge is used as a measuring instrument, and the accuracy of the radar level gauge is verified and calibrated in a multi-point mode in a conventional mode for correcting errors of the radar level gauge. The device is commonly used in the industrial and civil fields of liquid, cement, flour, hydrology and the like, mainly carries out non-contact continuous measurement on media such as liquid, slurry or granular materials and the like, and can be normally used in the occasions such as high dust concentration, high temperature, large pressure change, gas, steam and the like.
At present, various manufacturers and metering institutions perform precision detection on radar level gauges, and a 'reflecting plate' analog measurement method is often adopted.
The specific method is as shown in fig. 1:
the detection device mainly comprises a plurality of sections of metal cylinders 200 which are connected in series, the level meter 100 is fixed at one end of the cylinders 200, the beam axis of the antenna of the level meter 100 is overlapped with the central axis of the cylinders 200, and the wave absorbing material layers 300 are fully adhered to the inner walls of the cylinders 200, so that microwaves reflected by the antenna propagate in an infinite space approximately. A metal plate, which can be inserted perpendicular to the axis, is provided as a reflection plate 400 for simulating the level reflection at each reference point position in the axis direction of the cylinder 200, so that microwaves are reflected back to the antenna of the level gauge 100 to verify the level gauge measurement value at the reference point position. The reference point value is given by a laser distance meter mounted beside the level gauge 100.
In the "reflection plate" analog measurement method, the lifting mode of the reflection plate 400 is usually a manual operation mode or an electric push rod mode.
The manual operation requires excessive personnel, and the labor cost is high. Meanwhile, the staff needs to pay attention to whether each datum point is detected or not at all, and then go to lifting operation, so that the working efficiency is low, and the trend of automatic detection cannot be adapted.
The mode of electric putter, because the vibrations that the motor aroused, transmit the reflecting plate, need wait for a long time, just can stabilize the detection after vibrations disappear, make detection efficiency become low.
202222928255.7 patent of the prior application by the inventor: the basic error testing device for radar level gauge is realized by the self gravity of the reflecting plate when the upper unidirectional traction reflecting plate rises and falls, and the phenomenon of clamping and stopping always occurs in the falling process.
Disclosure of Invention
The utility model provides a reflecting plate lifting device for radar level gauge precision detection, which aims to solve the defects of the prior art, improve the test automation degree, improve the working efficiency, ensure that the structure is more compact and the transmission is smooth.
The technical scheme adopted for solving the technical problems is as follows:
a reflecting plate elevating gear for radar level gauge precision detection, its characterized in that:
the reflecting plate is positioned in the frame, and the metal plate of the reflecting plate is arranged in the frame;
the outer side of the frame is fixed with a vertical bidirectional cylinder;
the upper side pulley group mechanism comprises an upper steel wire rope fixed block fixed on the outer side of the frame, an upper movable pulley positioned below the upper steel wire rope fixed block and pivoted at the end part of an upper cylinder rod of the bidirectional cylinder, an upper outer fixed pulley pivoted on the upper steel wire rope fixed block, an upper inner fixed pulley pivoted on the upper side edge of the frame, wherein one end of the upper steel wire rope is fixed on the upper side edge of the frame, and the other end of the upper steel wire rope is fixed on the upper steel wire rope fixed block after bypassing the upper inner fixed pulley, the upper outer fixed pulley and the upper movable pulley;
the lower side pulley group mechanism comprises a lower steel wire rope fixing block fixed on the outer side of the frame, a lower movable pulley positioned above the lower steel wire rope fixing block and pivoted at the end part of a lower cylinder rod of the bidirectional cylinder, a lower outer fixed pulley pivoted on the lower steel wire rope fixing block, and a lower inner fixed pulley pivoted on the lower side edge of the frame, wherein one end of the lower steel wire rope is fixed on the lower side edge of the frame, and the other end of the lower steel wire rope is fixed on the lower steel wire rope fixing block after bypassing the lower inner fixed pulley, the lower outer fixed pulley and the lower movable pulley.
Further: one end of the upper steel wire rope is fixed on an upper steel wire rope hanging lug fixedly arranged at the middle point of the upper side edge of the frame; one end of the lower steel wire rope is fixed on a lower steel wire rope hanging lug fixedly arranged at the middle point of the lower side edge of the frame.
Further: the sliding blocks are respectively arranged on two sides of the frame, vertical linear guide rails are respectively arranged on the inner sides of the left side and the right side of the frame, and the sliding blocks and the linear guide rails form a sliding block guide rail fit.
Further: two sides of the frame are respectively provided with two reflecting plate brackets, and the sliding blocks are fixed at the end parts of the reflecting plate brackets.
Further: the lower extreme of every linear guide sets up down the stopper, and the slider is located the top of lower stopper.
Further: the bidirectional cylinder is fixed on a cylinder fixing frame, and the cylinder fixing frame is fixed on the outer side of the frame.
Further: the part of the upper steel wire rope from the upper steel wire rope hanging lug to the upper inner positioning pulley is in a vertical state.
Further: the part of the lower steel wire rope from the lower steel wire rope hanging lug to the lower inner fixed pulley is in a vertical state.
The utility model has the advantages that:
the utility model is driven by the bidirectional cylinder, and has simple transmission structure, stable and reliable transmission and no obvious vibration. The device improves the automation degree of the existing radar level gauge simulation measurement method, and solves the problems of excessive operators and low working efficiency in precision detection. Through designing 2 sets of pulley block structures, when the shrinkage displacement of cylinder piston rod is S, the lifting displacement of reflecting plate is 2S, reaches the purpose that reflecting plate displacement volume is doubled. The cylinder with smaller stroke can be selected, the size of the whole device is reduced, and the structure is smaller and more compact. Through the application of the bidirectional cylinder, the upper side and the lower side of the reflecting plate can be ensured to move by means of the traction of the steel wire rope, and the problems of unsmooth transmission and blocking caused by the tiny deformation of the peripheral frame of the reflecting plate are effectively avoided.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a combined structure diagram of a radar level gauge, a cylinder and a reflecting plate according to the present utility model;
FIG. 2 is a schematic diagram of the structure of the present utility model.
Reference numerals in the drawings:
100: a radar level gauge; 200: a cylinder; 300: a wave-absorbing material layer; 400: a reflection plate;
11: a frame; 12: a linear guide rail; 13: a slide block; 14: a reflecting plate bracket; 15: a lower limiting block;
21: a steel wire rope fixing block is arranged; 22: an upper movable pulley; 23: an upper outer fixed pulley; 24: an upper inner positioning pulley; 25: a steel wire rope is arranged;
31: a lower wire rope fixing block; 33: a lower movable pulley; 33: a lower outer fixed pulley; 34: a lower inner pulley; 35: a lower wire rope;
41: a bidirectional cylinder; 42: a cylinder fixing frame;
51: a metal plate; 52: a steel wire rope hanging lug is arranged; 53: a frame; 54: and (5) hanging lugs by using lower steel wires.
Detailed Description
In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other embodiments may be obtained according to these drawings without inventive effort for a person skilled in the art. In order that the utility model may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "upper," "lower," "inner," "outer," "bottom," and the like as used in this specification are used in an orientation or positional relationship based on that shown in the drawings, merely to facilitate the description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1:
the detection device mainly comprises a plurality of sections of metal cylinders 200 which are connected in series, the level meter 100 is fixed at one end of the cylinders 200, the beam axis of the antenna of the level meter 100 is overlapped with the central axis of the cylinders 200, and the wave absorbing material layers 300 are fully adhered to the inner walls of the cylinders 200, so that microwaves reflected by the antenna propagate in an infinite space approximately. A metal plate, which can be inserted perpendicular to the axis, is provided as a reflection plate 400 for simulating the level reflection at each reference point position in the axis direction of the cylinder 200, so that microwaves are reflected back to the antenna of the level gauge 100 to verify the level gauge measurement value at the reference point position. The reference point value is given by a laser distance meter mounted beside the level gauge 100.
As shown in fig. 2:
the utility model relates to a reflecting plate lifting device for radar level gauge precision detection, which mainly comprises a frame 11, a linear guide rail 12, a sliding block 13, a reflecting plate bracket 14 and a lower limiting block 15.
The reflecting plate 400 is located in the frame 11, the main body of the reflecting plate 400 is a metal plate 51 with a smooth surface, the metal plate 51 is installed in the frame 53, the middle point of the upper side edge of the frame 53 is fixedly provided with an upper wire rope hanging lug 52, and the middle point of the lower side edge is fixedly provided with a lower wire rope hanging lug 54.
Two reflecting plate brackets 14 are respectively arranged on two sides of the frame 53, and a sliding block 13 is fixed at the end part of each reflecting plate bracket 14.
The inner sides of the left side and the right side of the frame 11 are respectively provided with a vertical linear guide rail 12, and the lower part of the linear guide rail 12 is provided with a lower limiting block 15.
The slide block 13 connected with the reflecting plate bracket 14 is slidably embedded on the linear guide rail 12 to form a slide block guide rail fit, and the slide block 13 is positioned above the lower limiting block 15.
A cylinder mount 42 is fixed to the outer side of the frame 11, and a vertical bidirectional cylinder 41 is fixed to the cylinder mount 42.
To achieve traction of the reflection plate 400, 2 sets of pulley block mechanisms are provided at the upper and lower sides, respectively.
The upper side pulley group mechanism comprises an upper steel wire rope fixing block 21 fixed on the outer side of the frame 11, an upper movable pulley 22 positioned below the upper steel wire rope fixing block 21 and pivoted on the end part of an upper cylinder rod of the bidirectional cylinder 41, an upper outer fixed pulley 23 pivoted on the upper steel wire rope fixing block 21, and an upper inner fixed pulley 24 pivoted on the upper side edge of the frame 11, wherein one end of the upper steel wire rope 25 is fixed on an upper steel wire rope hanging lug 52 on the upper side edge of a frame 53, and the other end of the upper steel wire rope 25 is fixed on the upper steel wire rope fixing block 21 after bypassing the upper inner fixed pulley 24, the upper outer fixed pulley 23 and the upper movable pulley 22. The upper wire rope 25 is in a vertical state from the upper wire rope lug 52 to the upper inner pulley 24.
The lower pulley group mechanism comprises a lower steel wire rope fixing block 31 fixed on the outer side of the frame 11, a lower movable pulley 32 which is positioned above the lower steel wire rope fixing block 31 and pivoted on the end part of a lower cylinder rod of the bidirectional cylinder 41, a lower outer fixed pulley 33 pivoted on the lower steel wire rope fixing block 31, and a lower inner fixed pulley 34 pivoted on the lower side edge of the frame 11, wherein one end of a lower steel wire rope 35 is fixed on a lower steel wire rope hanging lug 54 on the lower side edge of a frame 53, and the other end of the lower steel wire rope 35 is fixed on the lower steel wire rope fixing block 31 after bypassing the lower inner fixed pulley 34, the lower outer fixed pulley 33 and the lower movable pulley 32. The lower wire rope 35 is in a vertical state from the lower wire rope lug 54 to the portion between the lower inner stator pulleys 34.
By applying the 2 sets of pulley blocks, when the contraction displacement of the cylinder piston rod of the bidirectional cylinder 41 is S, the lifting displacement of the reflecting plate 400 is 2S, namely the purpose of doubling the displacement of the reflecting plate 400 is achieved. The advantage is that can select the less cylinder of stroke, reduces the size of whole device, and the structure is compacter and more compact.
The lifting driving mechanism of the scheme consists of a bidirectional air cylinder 41 and an air cylinder fixing frame 42. The two-way cylinder 41, when one end of the piston cylinder rod is extended, the other end is contracted synchronously. This structure ensures that: the upper side and the lower side of the reflecting plate are both moved by the traction of the steel wire rope. The utility model relates to a primary version scheme adopted by an inventor, wherein the ascending and descending of a reflecting plate are realized by the self gravity of the reflecting plate only by unidirectional traction at the upper side, and the phenomenon of blocking always occurs in the descending process.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A reflecting plate elevating gear for radar level gauge precision detection, its characterized in that:
the reflecting plate (400) is positioned in the frame (11), and the metal plate (51) of the reflecting plate (400) is arranged in the frame (53);
a vertical bidirectional cylinder (41) is fixed on the outer side of the frame (11);
the upper side pulley group mechanism comprises an upper steel wire rope fixing block (21) fixed on the outer side of the frame (11), an upper movable pulley (22) positioned below the upper steel wire rope fixing block (21) and pivoted at the end part of an upper cylinder rod of the bidirectional cylinder (41), an upper outer fixed pulley (23) pivoted on the upper steel wire rope fixing block (21), an upper inner fixed pulley (24) pivoted on the upper side edge of the frame (11), wherein one end of an upper steel wire rope (25) is fixed on the upper side edge of the frame (53), and the other end of the upper steel wire rope is fixed on the upper steel wire rope fixing block (21) after bypassing the upper inner fixed pulley (24), the upper outer fixed pulley (23) and the upper movable pulley (22);
the lower side pulley group mechanism comprises a lower steel wire rope fixing block (31) fixed on the outer side of the frame (11), a lower movable pulley (32) which is arranged above the lower steel wire rope fixing block (31) and pivoted at the end part of a lower cylinder rod of the bidirectional cylinder (41), a lower outer fixed pulley (33) pivoted on the lower steel wire rope fixing block (31), a lower inner fixed pulley (34) pivoted on the lower side edge of the frame (11), and one end of a lower steel wire rope (35) is fixed on the lower side edge of the frame (53), and after bypassing the lower inner fixed pulley (34), the lower outer fixed pulley (33) and the lower movable pulley (32), the other end of the lower steel wire rope is fixed on the lower steel wire rope fixing block (31).
2. The reflecting plate lifting device for radar level gauge accuracy detection according to claim 1, wherein: one end of the upper steel wire rope (25) is fixed on an upper steel wire rope hanging lug (52) fixedly arranged at the middle point of the upper side edge of the frame (53); one end of the lower steel wire rope (35) is fixed on a lower steel wire rope hanging lug (54) fixedly arranged at the middle point of the lower side edge of the frame (53).
3. The reflecting plate lifting device for radar level gauge accuracy detection according to claim 1, wherein: the two sides of the frame (53) are respectively provided with a sliding block (13), the inner sides of the left side and the right side of the frame (11) are respectively provided with a vertical linear guide rail (12), and the sliding blocks (13) and the linear guide rails (12) form a sliding block guide rail matching.
4. A reflecting plate lifting device for radar level gauge accuracy detection according to claim 3, wherein: two reflecting plate brackets (14) are respectively arranged on two sides of the frame (53), and the sliding block (13) is fixed at the end part of the reflecting plate brackets (14).
5. A reflecting plate lifting device for radar level gauge accuracy detection according to claim 3, wherein: the lower end of each linear guide rail (12) is provided with a lower limiting block (15), and the sliding block (13) is positioned above the lower limiting block (15).
6. The reflecting plate lifting device for radar level gauge accuracy detection according to claim 1, wherein: the bidirectional cylinder (41) is fixed on a cylinder fixing frame (42), and the cylinder fixing frame (42) is fixed on the outer side of the frame (11).
7. The reflecting plate lifting device for radar level gauge accuracy detection according to claim 2, wherein: the part of the upper steel wire rope (25) from the upper steel wire rope hanging lug (52) to the upper inner positioning pulley (24) is in a vertical state.
8. The reflecting plate lifting device for radar level gauge accuracy detection according to claim 2, wherein: the part of the lower steel wire rope (35) from the lower steel wire rope hanging lug (54) to the lower inner positioning pulley (34) is in a vertical state.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321822062.1U CN220472764U (en) | 2023-07-12 | 2023-07-12 | Reflecting plate lifting device for radar level gauge precision detection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202321822062.1U CN220472764U (en) | 2023-07-12 | 2023-07-12 | Reflecting plate lifting device for radar level gauge precision detection |
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| CN220472764U true CN220472764U (en) | 2024-02-09 |
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| CN202321822062.1U Active CN220472764U (en) | 2023-07-12 | 2023-07-12 | Reflecting plate lifting device for radar level gauge precision detection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112229484A (en) * | 2020-10-21 | 2021-01-15 | 丹东通博电器(集团)有限公司 | Radar level meter measurement accuracy detection device |
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2023
- 2023-07-12 CN CN202321822062.1U patent/CN220472764U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112229484A (en) * | 2020-10-21 | 2021-01-15 | 丹东通博电器(集团)有限公司 | Radar level meter measurement accuracy detection device |
| CN112229484B (en) * | 2020-10-21 | 2024-07-23 | 丹东通博电器(集团)有限公司 | Radar level gauge measurement accuracy detection device |
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