CN2288418Y - Comprehensive inspection instrument for theodolite - Google Patents

Abstract

The utility model relates to a synthetic check meter for a transit, which belongs to a device for checking the graduation error of a chassis of a the transit. The utility model comprises a base, an adjustable work bench, a vertical type graduation-dividing table 102 with a plurality of teeth, a plane surface reflection mirror 101, a horizontal type graduation-dividing table 112 with a plurality of teeth, a transition plate 109 and an autocollimation eyepiece 107, wherein the working surface of the plane surface reflection mirror 101 is perpendicular to an axial line of the vertical type 102 graduation-dividing table with a plurality of teeth, and an axial line of the horizontal type graduation-dividing table 112 with a plurality of teeth is perpendicular to the axial line of the vertical type graduation-dividing table with a plurality of teeth 102. The utility model can satisfy the requirement that the graduation error of a scale disk of the transit is checked with high accuracy, and has the advantages that the structure is simple, and the errors of installation and adjustment are reduced greatly.

Description

Comprehensive inspection instrument for theodolite

The utility model relates to a comprehensive inspection instrument for a theodolite, which belongs to the technical field of inspecting the division errors of vertical disks and horizontal disks of various types of optical and electronic theodolites.

At present, the inspection instrument for inspecting the vertical disk and the horizontal disk of the theodolite cannot meet the high precision requirements.

The purpose of the utility model is to design a comprehensive inspection instrument for theodolite, which not only satisfies the requirements of high-precision inspection of the vertical disc and horizontal disc indexing errors of the theodolite, but also has a simple structure, greatly reduces the installation adjustment error and can be used for the theodolite The perpendicularity between the horizontal axis and the vertical axis of the telescope, and the verticality inspection between the collimation axis and the horizontal axis.

The technical scheme that reaches the above-mentioned purpose is as follows:

Theodolite comprehensive inspection instrument comprises base (105), the standard division value generator that is fixed on the base (105), lift adjustable workbench (115), it is characterized in that the standard division value generator is fixed on the base (105 ) consists of a vertical multi-tooth indexing table (102) and a plane reflector (101) fixed on the vertical multi-tooth indexing table (102); it also includes a horizontal mirror fixed on an adjustable workbench (115). The multi-tooth indexing table (112) also includes a self-collimating eyepiece (107) connected with the telescope barrel (208) of the measured theodolite fixed on the horizontal multi-tooth indexing table (112).

The utility model is described in further detail below through embodiment in conjunction with accompanying drawing.

Fig. 1 is the structural representation of the utility model theodolite comprehensive inspection instrument;

Fig. 2 is the structural sectional view of self-collimating eyepiece 107;

Fig. 3 is the optical path schematic diagram of the utility model theodolite comprehensive inspection instrument;

The structure diagram of the theodolite comprehensive tester shown in Fig. 1, the strip plane reflector 101 and the vertical multi-tooth index table 102 form a standard index value generator. On the extension line of the working surface normal of the plane reflector 101, which is also the center line of the vertical multi-tooth indexing table 102, the theodolite 106 to be measured is placed, the eyepiece on the theodolite telescope is unscrewed, and the self-collimating Straight eyepiece 107, and utilize it to receive the standard angle value that the standard division value generator sends out.

The plane mirror 101 is connected with the vertical multi-tooth indexing table 102 through the mirror base 103, the vertical multi-tooth indexing table 102 is connected with the base 105 through the screw 104, the measured theodolite 106 is through the connector 108, and the screw 110 is connected with the transition plate 109 Connection, and the transition plate 109 is connected with the horizontal multi-tooth indexing table 112 by screws 111. Pressing plate 114 and screw 113 connect horizontal multi-tooth indexing table 112 with adjustable workbench 115, and adjustable workbench 115 is fixed on the lifting bolt 117 by screw 116, and can carry out lifting movement through nut 118, so that the telescope of the measured theodolite The sight axis coincides with the centerline of the multi-tooth indexing table. Vertical and horizontal multi-tooth indexing tables are existing national measurement standard instruments.

A schematic structural diagram of the self-collimating eyepiece 107 shown in FIG. 2 .

The eyepiece 201 can be adjusted by rotating the lens 202. A rhombic prism 203 is arranged in front of the eyepiece 201, and an illuminating bulb 204 is arranged above the oblique prism 203. The central axis of the illuminating bulb 204 is perpendicular to the optical axis of the eyepiece 201. The rhomboidal prism 203 is located at the intersection of the central axis and the optical axis. The self-collimating eyepiece seat 205 is screwed to the transition piece 206 , and the transition piece 205 is connected to the telescope tube 208 of the measured theodolite through screws 207 .

Figure 3 shows the schematic diagram of the optical path of the theodolite comprehensive inspection instrument. The light beam emitted by the light source 204 is reflected to the reticle of the theodolite telescope tube 208 by the rhodolite 203 through the rhombic prism 203. After the theodolite objective lens 4 and the plane reflector 101 are passed, the original path returns to the rear of the rhodolite prism 203. , part of the light is transmitted to the eyepiece 201 for imaging.

The plane mirror 101 and the vertical multi-tooth index table 102 form a standard index value generator. On the extension line of the working surface normal of the reflecting mirror 101, which is also the center line of the vertical multi-tooth indexing table 102, the theodolite to be measured is placed. The working surface of the plane mirror 101 is perpendicular to the axis of the vertical multi-tooth indexing table 102 . The axis of the horizontal multi-tooth indexing table 112 is perpendicular to the axis of the vertical indexing table 102 . During measurement, the eyepiece on the theodolite telescope is unscrewed, and the self-collimating eyepiece 107 is installed and used to receive the standard angle value sent by the standard division value generator.

When measuring the indexing error of the vertical disc of the theodolite, a light source target with a reticle is sent out from the self-collimating eyepiece 107, and is imaged in the eyepiece after being reflected by the plane reflector 101. First align the self-collimating eyepiece 107 with the plane reflector 101, read the value as a1, rotate the vertical multi-tooth indexing table 102 at an angle of _α1 , then rotate the horizontal axis of the theodolite to make the self-collimating eyepiece 107 re-image The reading value of the quasi-plane mirror 101 is a2, and the measured angle value α ₁ ′ of the measured theodolite is obtained by using the formula a2-a1=α ₁ ′.

When measuring the indexing error of the theodolite horizontal disk, first rotate the vertical multi-tooth indexing table 102 until the normal line of the plane reflector 101 is perpendicular to the plumb line, and after installing the self-collimating eyepiece on the theodolite under test, aim at the reading is a3, rotate the horizontal multi-tooth indexing table 112 for an α ₂ angle, then rotate the vertical axis of the theodolite to make the self-collimation eyepiece 107 aim again, the reading is a4, use the formula α4-α3=α ₂ ', find Get the measured angle α ₂ ′ of the measured theodolite.

Utilize the utility model theodolite comprehensive inspection instrument to be able to detect various optical theodolites, electronic theodolites horizontal disk indexing error, vertical disk indexing error, the perpendicularity of the horizontal axis of the telescope and the vertical axis, the verticality of the collimation axis of the telescope and the horizontal axis degrees, disc eccentricity, etc.

Claims (8)

1. Theodolite comprehensive inspection instrument includes a base (105), a standard index value generator fixed on the base (105), and a lifting adjustable workbench (115), which is characterized in that the standard index value generator is fixed on the base (105) the upper vertical multi-tooth indexing table (102) and the flat reflector (101) that is fixed on the vertical multi-tooth indexing table (102) form; The horizontal multi-tooth indexing table (112) also includes an autocollimating eyepiece (107) connected with the telescope barrel (208) of the measured theodolite fixed on the horizontal multi-tooth indexing table (112). 2. The theodolite comprehensive tester according to claim 1, characterized in that a transition plate (109) is provided between the horizontal multi-tooth indexing table (112) and the measured theodolite (106). 3. The comprehensive inspection instrument for theodolite according to claim 2, characterized in that the working surface of the plane mirror (101) is perpendicular to the axis of the vertical multi-tooth indexing table (102). 4. The theodolite comprehensive tester according to claim 3, characterized in that the axis of the horizontal multi-tooth indexing table (112) is perpendicular to the axis of the vertical multi-tooth indexing table (102). 5. The theodolite comprehensive tester according to claim 3, further comprising a screw (111) connecting the transition plate (109) and the horizontal multi-tooth indexing table (112). 6. The theodolite comprehensive tester according to claim 3, further comprising a pressing plate (114) and screws (113) for connecting the horizontal multi-tooth indexing table (112) with the adjustable worktable (115). 7. The theodolite comprehensive tester according to claim 3, further comprising lifting bolts (117) fixed by the adjustable workbench (115) and screws (116) for fixing. 8. The comprehensive inspection instrument for theodolite according to claim 7, further comprising a nut (118) for lifting and lowering the lifting bolt (117).

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