CN106500566B - Dot-line mileage measuring device - Google Patents

Abstract

The invention relates to the technical field of distance measurement, in particular to a point-line mileage measurement device, comprising: a driving wheel rolling on the surface to be measured, a decimal scale gear transmission group, an integer scale gear transmission group, a gear transmission group arranged on the decimal scale The decimal dial at the end of the group and the integer dial arranged at the end of the integer scale gear transmission shaft; the beginning end of the decimal scale gear transmission group and the beginning end of the integer scale gear transmission group are both coaxially arranged with the driving wheel, and the decimal dial has a N scale lines arranged in an array around its circumference, the radius of the driving wheel is r, the transmission ratio of the decimal scale gear transmission group is a, and the transmission ratio of the integer scale gear group is b,

An integer dial has t tick marks arranged in an array around its circumference,

According to the pointer index on the integer dial and the pointer index on the decimal dial, the length that the driving wheel rolls can be calculated. The invention is easy to operate, and one person can measure the length of longer builds.

Description

Dot-line mileage measuring device

technical field

The invention relates to the technical field of distance measurement, in particular to a point-line measurement device for measuring long distances.

Background technique

At present, the common devices on the market to measure the straight-line distance between two ends are usually: tape measure, steel measure, sight distance measurement, photoelectric measurement, etc.; the measurement accuracy is not high, and the reading data is easily affected by human factors. Cause measurement error, photoelectric measurement needs to use optical and electronic technologies, and it is inconvenient to use. Especially for the high-precision measurement requirements of large-scale engineering structural parts, the above measurement devices are difficult to meet the requirements. On the other hand, when measuring large-scale structural parts, two people are often required to be located at the two ends of the required measurement, and it is easy for two people to operate. cause measurement errors.

SUMMARY OF THE INVENTION

Aiming at the problems in the prior art that the operation is complex, easily influenced by factors, and the measurement accuracy is low, the invention researches and designs a point-line mileage measuring device that can measure the length of large structural parts by one person and has high measurement accuracy.

The technical scheme adopted in the present invention is:

度，若设定主动轮的半径为r，小数刻度齿轮传动组的传动比为a，整数刻度齿轮组的传动比为b，则小数刻度盘上的每个格代表

米，其中

若所述整数刻度盘上具有绕其圆周阵列排布的t个刻度线，相邻刻度线之间形成的一格的角度为

度，则整数刻度盘上的每一格代表

米，其中

根据整数刻度盘上的指针指数和小数刻度盘上的指针指数即可计算出主动轮滚过的长度。A point-line mileage measuring device is characterized in that it comprises: a driving wheel rolling on the surface to be measured, a decimal scale gear transmission group, an integer scale gear transmission group, and a decimal scale dial arranged at the end of the decimal scale gear transmission group and an integer dial set at the end of the integer scale gear transmission shaft; the beginning of the decimal scale gear transmission group and the beginning end of the integer scale gear transmission group are both coaxially arranged with the driving wheel, and the decimal dial has a circle around it. n scale lines arranged in a circular array, the angle of one grid formed between adjacent scale marks is

If the radius of the driving wheel is set as r, the transmission ratio of the decimal scale gear transmission group is a, and the transmission ratio of the integer scale gear group is b, then each grid on the decimal scale represents

meters, of which

If the integer dial has t scale lines arranged in an array around its circumference, the angle of one grid formed between adjacent scale lines is

degrees, then each division on the integer dial represents

meters, of which

According to the pointer index on the integer dial and the pointer index on the decimal dial, the length that the driving wheel rolls can be calculated.

Further, where a=1:1, b=1:54.

Further, the decimal scale gear transmission group includes a first gear coaxially arranged with the driving wheel, a second gear externally meshed with the first gear, and a third gear externally meshed with the second gear, The decimal dial is arranged coaxially with the third gear, and the center distance between the first gear and the second gear and the center distance between the second gear and the third gear are both c.

Further, the integer scale gear set includes a first gear, a second gear, a fourth gear arranged coaxially with the second gear, a fifth gear externally meshed with the fourth gear, and the fifth gear. a sixth gear arranged coaxially with the gears, a seventh gear externally meshed with the sixth gear, an eighth gear arranged coaxially with the seventh gear, and a ninth gear externally meshed with the eighth gear; The integer dial is arranged coaxially with the ninth gear.

Further, the center distance between the fourth gear and the fifth gear, the center distance between the sixth gear and the seventh gear, and the center distance between the eighth gear and the ninth gear are all d.

Further, where c=36mm, d=40mm.

Further, the measuring device also includes two side plates, and the decimal scale gear transmission group and the integer scale gear transmission group are both sandwiched between the two side plates, and the shafts used to install the gears in the two gear transmission groups are both. Mounted on both side panels.

Further, a manipulation handle is installed on the side panel, which is convenient to hold and push the measuring device to move.

Further, a pier foot is also fixed below the side plate, and the pier foot and the two driving wheels jointly support the measuring device and keep it from being tilted in a state of being unsupported.

Furthermore, the shaft used to install the driving wheel is the first shaft, and the two driving wheels are installed on the outer sides of the two side plates, and are respectively fixed on the first shaft with pins.

Compared with the prior art, the present invention obviously has the following beneficial effects:

1. One person pushes the measuring device to move to calculate the rolling distance of the driving wheel according to the readings of the integer dial and the decimal dial, which is easy to operate.

2. The length value to be measured can be obtained by adding the integer value calculated by the reading of the integer dial and the decimal value calculated by the reading of the decimal dial, and the precision can reach 0.01m and the precision is high.

3. It can meet the high-precision measurement requirements of large-scale engineering structural parts, adapt to the needs of the real society, and has great social and economic value.

4. It adopts gear meshing transmission, large transmission torque, accurate measurement and easy implementation, which can reduce various losses caused by human factors in the measurement process.

5. The transmission runs smoothly and reliably, with little vibration and noise, and is easy to use.

6. The operation efficiency is high, which saves the workload of traditional measurement methods such as manual drawing ruler measurement, and improves the measurement efficiency.

Description of drawings

1 is a front view of an embodiment of the present invention;

2 is a schematic diagram of a gear transmission according to an embodiment of the present invention;

In the figure, 1, driving wheel, 2, decimal dial, 3, integer dial, 4, first gear, 5, second gear, 6, third gear, 7, fourth gear, 8, fifth gear, 9. The sixth gear, 10, the seventh gear, 11, the eighth gear, 12, the ninth gear, 13, the side plate, 14, the operating handle, 15, the pier foot, 16, the first shaft.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

In the description of the present invention, it is to be understood that the terms "radial", "axial", "upper", "lower", "top", "bottom", "inner", "outer", etc. refer to orientations Or the positional relationship is based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation. , so it should not be construed as a limitation of the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

度，若设定主动轮1的半径为r，小数刻度齿轮传动组的传动比为a，整数刻度齿轮组的传动比为b，则小数刻度盘2上的每个格代表

米，其中

若整数刻度盘3上具有绕其圆周阵列排布的t个刻度线，相邻刻度线之间形成的一格的角度为

度，则整数刻度盘3上的每一格代表

米，其中

根据整数刻度盘3上的指针指数和小数刻度盘2上的指针指数即可计算出主动轮1滚过的长度。As shown in Figure 1 and Figure 2, a dot-line mileage measuring device includes: a driving wheel 1 rolling on the surface to be measured, a decimal scale gear transmission group, an integer scale gear transmission group, a gear transmission set on a decimal scale The decimal dial 2 at the end of the group and the integer dial 3 arranged at the end of the integer scale gear transmission shaft; the beginning of the decimal scale gear transmission group and the beginning end of the integer scale gear transmission group are coaxially arranged with the driving wheel 1, and the decimal dial 2 There are n tick marks arranged in an array around its circumference, and the angle of a grid formed between adjacent tick marks is

If the radius of the driving wheel 1 is set as r, the transmission ratio of the decimal scale gear transmission group is a, and the transmission ratio of the integer scale gear group is b, then each grid on the decimal scale dial 2 represents

meters, of which

If the integer dial 3 has t scale lines arranged in an array around its circumference, the angle of one grid formed between adjacent scale lines is

degrees, then each grid on the integer dial 3 represents

meters, of which

According to the pointer index on the integer dial 3 and the pointer index on the decimal dial 2, the rolling length of the driving wheel 1 can be calculated.

主动轮的半径r＝55.73mm。若在小数刻度盘上设置n＝35个刻度线，那么小数刻度盘每走一格代表

这样本装置所测量的精度可达到0.01m。In this embodiment, a=1:1, b=1:54 can be used, and t=54 scale lines can be set on the integer dial 3. If the integer dial does not turn one grid, it means that the driving wheel rotates once. The circumference of the wheel is 350mm, then

The radius of the driving wheel is r=55.73mm. If n=35 tick marks are set on the decimal dial, then each grid of the decimal dial represents

In this way, the measurement accuracy of the device can reach 0.01m.

In this embodiment, referring to FIG. 2 , the decimal scale gear transmission group includes a first gear 4 coaxially arranged with the driving wheel 1 , a second gear 5 externally meshed with the first gear 4 , and a first gear 5 externally meshed with the second gear 5 . Three gears 6, the decimal dial 2 and the third gear 6 are coaxially arranged, and the center distance between the first gear 4 and the second gear 5 and the center distance between the second gear 5 and the third gear 6 are both c. The integer scale gear set includes a first gear 4 , a second gear 5 , a fourth gear 7 arranged coaxially with the second gear 5 , a fifth gear 8 externally meshed with the fourth gear 7 , and arranged coaxially with the fifth gear 8 The sixth gear 9, the seventh gear 10 that meshes with the sixth gear 9, the eighth gear 11 that is coaxially arranged with the seventh gear 10, and the ninth gear 12 that meshes with the eighth gear 11; Integer dial 3 Coaxially arranged with the ninth gear 12 . The center distance between the fourth gear 7 and the fifth gear 8, the center distance between the sixth gear 9 and the seventh gear 10, and the center distance between the eighth gear 11 and the ninth gear 12 are all d. Where c=36mm, d=40mm.

In this embodiment, the measuring device also includes two side plates 13, the decimal scale gear transmission group and the integer scale gear transmission group are both sandwiched between the two side plates 13, and the shafts used to install the gears in the two gear transmission groups are It is erected on the two side panels 13 . A joystick is installed on the side plate 13 for easy holding and pushing the measuring device to move. A pier foot 15 is also fixed below the side plate 13 , and the pier foot 15 and the two driving wheels 1 jointly support the measuring device and keep it from being tilted when no one is supported. The shaft for installing the driving wheel 1 is the first shaft 16 , and the two driving wheels 1 are installed on the outer sides of the two side plates 13 and fixed on the first shaft 16 with pins respectively.

The side plate 13 is made of plastic, which is light and labor-saving, and is more convenient to use. The driving wheel 1 is made of 45-gauge steel.

Specifically, the human hand holds the operating handle 14 to push the driving wheel 1 to roll along the surface to be measured, and calculates and measures the distance over which the driving wheel 1 rolls. The driving wheel 1 drives the pointer of the decimal dial 2 to rotate through the decimal scale gear transmission group. , the fractional part of the distance that the driving wheel 1 rolls can be calculated according to the transmission ratio of the decimal scale gear transmission group and the diameter of the driving wheel 1 . The driving wheel 1 drives the pointer of the integer dial 3 to rotate through the integer scale gear transmission group. According to the transmission ratio of the integer scale gear transmission group and the diameter of the driving wheel 1, the rolling distance of the driving wheel 1 can be calculated, and the integer part is added. According to the decimal part calculated by the decimal dial 2, the exact distance that the driving wheel 1 rolls can be obtained.

The above ideal embodiment according to the present invention is enlightenment, and through the above description, relevant personnel can make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the contents in the specification, and the technical scope must be determined according to the scope of the claims.

Claims (10)

1. a point-line type mileage measuring device, is characterized in that, comprises: the driving wheel (1) that rolls on the surface that needs to be measured, the decimal scale gear transmission group, the integer scale gear transmission group, is arranged on the decimal scale gear transmission group The decimal dial (2) at the end and the integer dial (3) arranged at the end of the integer scale gear transmission shaft; the gears at the beginning of the decimal scale gear transmission group and the beginning end of the integer scale gear transmission group are all connected with the driving wheel. (1) Coaxial arrangement, the decimal dial (2) has n scale lines arranged in an array around its circumference, and the angle of one grid formed between adjacent scale lines is

If the radius of the driving wheel (1) is set as r, the transmission ratio of the decimal scale gear transmission group is a, and the transmission ratio of the integer scale gear group is set to b, then each grid on the decimal scale dial (2) represents

meters, of which

If the integer dial (3) has t scale lines arranged in an array around its circumference, the angle of one grid formed between adjacent scale lines is

degrees, then each division on the integer dial (3) represents

meters, of which

According to the pointer index on the integer dial (3) and the pointer index on the decimal dial (2), the rolling length of the driving wheel (1) can be calculated, wherein the driving wheel (1) is made of steel material . 2 . The point-and-line odometer measuring device according to claim 1 , wherein a=1:1, b=1:54. 3 . 3. The dot-line mileage measuring device according to claim 1 or 2, wherein the decimal scale gear transmission group comprises a first gear (4) coaxially arranged with the driving wheel (1), and A second gear (5) externally meshed with the first gear (4) and a third gear (6) externally meshed with the second gear (5), the decimal dial (2) and the third gear (6) The gears (6) are coaxially arranged, and the center distance between the first gear (4) and the second gear (5) and the center distance between the second gear (5) and the third gear (6) are both c. 4. The dot-line odometer measuring device according to claim 3, characterized in that the integer scale gear set comprises a first gear (4), a second gear (5), and the second gear (5) a fourth gear (7) arranged coaxially, a fifth gear (8) externally meshed with the fourth gear (7), a sixth gear (9) arranged coaxially with the fifth gear (8), A seventh gear (10) externally meshing with the sixth gear (9), an eighth gear (11) coaxially disposed with the seventh gear (10), and externally meshing with the eighth gear (11) The ninth gear (12); the integer dial (3) is coaxially arranged with the ninth gear (12). 5. The dot-line odometer measuring device according to claim 4, characterized in that the center distance of the fourth gear (7) and the fifth gear (8), the sixth gear (9) and the seventh gear (8) The center distance of the gear (10) and the center distance between the eighth gear (11) and the ninth gear (12) are both d. 6 . The point-and-line mileage measuring device according to claim 5 , wherein c=36mm, d=40mm. 7 . 7. The dot-line mileage measuring device according to claim 1, characterized in that, the measuring device further comprises two side plates (13), and both the decimal scale gear transmission group and the integer scale gear transmission group are sandwiched Between the two side plates (13), the shafts used to install the gears in the two gear transmission groups are all set on the two side plates (13). 8 . The point-and-line mileage measuring device according to claim 7 , wherein an operating handle ( 14 ) is installed on the side plate ( 13 ) which is convenient to hold and push the measuring device to move. 9 . 9. The point-and-line mileage measuring device according to claim 7 or 8, wherein a pier foot (15) is also fixed below the side plate (13), and the pier foot (15) and two active The wheels (1) together support the measuring device so that it does not tip over in an unsupported state. 10. The point-line mileage measuring device according to claim 1, wherein the shaft for installing the driving wheel (1) is the first shaft (16), and the two driving wheels (1) are installed on the two side plates (10). 13) outside, and are respectively fixed on the first shaft (16) with pins.

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