A basic structure of a thrust measurement bench, a positioning tooling and an installation method

Abstract

The present invention discloses a thrust measurement bench foundation structure, a positioning tooling and an installation method. The foundation structure includes a bench, a base foundation structure and a reaction force foundation structure. The base foundation structure includes a first bench mounting seat, a first anchor foot and an adjusting shim. The first anchor foot is connected to the bottom of the first bench mounting seat, and the adjusting shim is installed on the top of the first bench mounting seat. The base foundation structure is installed at the bottom of the bench. The reaction force foundation structure includes a second bench mounting seat and a second anchor foot. The second anchor foot is connected to the bottom of the second bench mounting seat, and the reaction force foundation structure is installed on the top of the bench. Both the bottom surface foundation structure and the reaction force foundation structure can be disassembled into small-sized anchor feet and mounting seats, which is convenient for processing and transportation. In addition, the foundation structure is installed on the corresponding positioning tooling, and the relative positions of the base foundation structure and the reaction force foundation structure are measured by using a double theodolite measurement system, and the thickness of the adjusting shim is calculated to ensure the installation accuracy.

Description

Technical Field

[0001] The invention relates to the field of thrust test benches, and in particular to a thrust measurement bench foundation structure, a positioning tool and an installation method. Background Art

[0002] Rocket engine ground tests are generally conducted on test benches. Compared with solid rocket test benches, the installation process requirements for liquid rocket test benches are more precise and the project is more massive. The layout forms of liquid rocket engine thrust test benches generally include horizontal layout, vertical layout and inclined layout. Vertical layout and horizontal layout use the method of embedded integral steel structure and secondary grouting to ensure the accuracy of the installation benchmark, which is relatively easy. The installation benchmark of the inclined thrust test bench is in the horizontal plane and the inclined plane. When designing the bench, the construction level of the installation foundation and the bench installation process must be considered at the same time. The construction level of the foundation mainly refers to whether the shape, position and dimensional tolerance of the installation foundation can meet the bench installation requirements. At present, the installation of liquid rocket thrust test benches adopts concrete foundation construction, which cannot be disassembled, and is not convenient for the construction and transportation of the bench.

[0003] Therefore, there is an urgent need for a thrust measurement bench foundation structure, positioning tooling and installation method to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a thrust measurement bench foundation structure, positioning tooling and installation method, which facilitate the construction and transportation of the thrust measurement bench and improve the installation accuracy of the thrust measurement bench.

[0005] In order to solve the above technical problems, the present invention provides a thrust measurement bench foundation structure, comprising a bench, a base foundation structure and a reaction force foundation structure;

[0006] The base infrastructure structure includes a first stand mounting seat, a first anchor foot and an adjustment pad, the first stand mounting seat is an I-shaped structure, the first anchor foot is connected to the bottom of the first stand mounting seat, the adjustment pad is installed on the top of the first stand mounting seat, and the base infrastructure structure is installed on the bottom of the stand;

[0007] The reaction force basic structure includes a second platform mounting seat and a second anchor foot. The top of the second platform mounting seat is two folding ear structures. The second anchor foot is connected to the bottom of the second platform mounting seat. The reaction force basic structure is installed on the top of the platform.

[0008] Furthermore, the platform comprises a reaction force foundation circular frame, a base foundation circular frame, a plurality of vertical beams and an inclined beam;

[0009] The reaction force base circular frame is connected to the base foundation circular frame through the inclined beam, and the reaction force base structure is installed on the reaction force base circular frame;

[0010] A plurality of the vertical beams are uniformly installed on the sides of the reaction force base circular frame and the base foundation circular frame;

[0011] The base foundation structure is installed at the bottom of the vertical beam.

[0012] Furthermore, a positioning tooling for the thrust measurement bench is also proposed, which is characterized by including a base foundation positioning tooling and a reaction force base positioning tooling;

[0013] The base foundation positioning tooling is used to fix the base foundation structure. The base foundation positioning tooling includes a first connecting frame, a second connecting frame, a third connecting frame, and a fourth connecting frame; the first connecting frame is a cross-shaped structure composed of a short frame and a long frame; the second connecting frame and the third connecting frame are L-shaped structures composed of a long frame and a short frame. The short frame of the second connecting frame is installed on one side of the short frame of the first connecting frame, the short frame of the third connecting frame is installed on the other side of the short frame of the first connecting frame, and the fourth connecting frame is installed on the upper surfaces of the long frames of the second connecting frame and the third connecting frame and away from one side of the first connecting frame;

[0014] The reaction force base positioning tooling includes an arc-shaped frame, a plurality of support beams, and a center frame; the arc-shaped frame is provided with a center circle, the center frame is installed within the center circle of the arc-shaped frame, one side of the plurality of support beams is respectively connected to the four sides of the center frame, and the arc-shaped frame is installed on the other side of the support beams.

[0015] Furthermore, the center frame further includes a fixing frame, and the fixing frame is arranged on the upper surface of the center frame; a first cube mirror mounting seat is installed on the fixing frame.

[0016] Furthermore, a second cube mirror mounting seat is arranged on the fourth connecting frame.

[0017] A method for installing a thrust measurement bench is also proposed, including the following steps:

[0018] S1. Respectively install the base foundation structure and the reaction force base structure on the base foundation positioning tooling and the reaction force base positioning tooling, and complete the pouring construction of the reaction force base structure and the base foundation structure;

[0019] S2. Install a cube mirror on each of the first cube mirror mounting seat and the second cube mirror mounting seat; adopt a double theodolite measurement system, simultaneously aim two theodolites at the two cube mirrors, respectively establish a reference coordinate system and a comparison coordinate system at the center of each cube mirror, and obtain the angles of the three coordinate axes of the comparison coordinate system relative to the reference coordinate system;

[0020] S3. Input the theoretical coordinate position of the comparison coordinate system relative to the reference coordinate system into the measuring system. According to the angles of the three coordinate axes of the comparison coordinate system relative to the reference coordinate system obtained, the measuring system outputs that the reaction force base positioning tooling rotates by a first angle α around the inclination direction 1 and the base base positioning tooling rotates by a second angle α around the horizontal direction 2 and rotates by a third angle α around the direction of the fourth connecting frame of the base base positioning tooling 3 ;

[0021] S4. Reserve a plurality of circular arc-shaped engraved lines with a radius of R0 and conical positioning points located on the engraved lines on the mating surface between the reaction force base circular frame and the reaction force base structure. Using an arc positioning tool, with the conical positioning point as the center, engrave a circular curve, and the curve radius R1 is R1 = R0 * α 1 , and drill holes with the intersection point of the engraved line and the circular curve as the center point of the positioning pin hole; when the curve radius R1 > 0, drill the positioning pin hole on the clockwise side of the conical positioning point, and when the curve radius R1 < 0, drill the positioning pin hole on the counterclockwise side of the conical positioning point;

[0022] S5. Remove the reaction force base structure positioning tooling and install the reaction force base structure positioning tooling on the reaction force base circular frame;

[0023] S6. According to the second angle α 2 and the third angle α 3 , calculate the first thickness and the second thickness of each position adjustment shim, and take the sum of the first thickness and the second thickness of each position adjustment shim as the final thickness of each position adjustment shim;

[0024] S7. Remove the base base structure positioning tooling and install the adjustment shims with the final thickness on the corresponding base base structure;

[0025] S8. Install the thrust measurement bench on the base base structure.

[0026] Furthermore, installing the base base structure onto the base base positioning tooling includes the following steps:

[0027] Provide 8 base base structures, namely the first base base structure, the second base base structure, the third base base structure, the fourth base base structure, the fifth base base structure, the sixth base base structure, the seventh base base structure, and the eighth base base structure;

[0028] Install the seven-base foundation structure and the eighth-base foundation structure at the bottoms of both ends of the long frame of the first connecting frame of the base foundation positioning tooling, and make the eighth-base foundation structure close to the fourth connecting frame of the base foundation positioning tooling;

[0029] Install the first-base foundation structure at the bottom of the long frame of the second connecting frame of the base foundation positioning tooling, and at the intersection of the second connecting frame and the fourth connecting frame; install the third-base foundation structure at the bottom of the short frame of the second connecting frame, and close to the short frame of the first connecting frame; install the second-base foundation structure at the bottom of the long frame of the second connecting frame, and close to the short frame of the second connecting frame;

[0030] Install the fourth-base foundation structure at the bottom of the long frame of the third connecting frame of the base foundation positioning tooling, and at the intersection of the third connecting frame and the fourth connecting frame; install the sixth-base foundation structure at the bottom of the short frame of the third connecting frame, and close to the short frame of the first connecting frame; install the fifth-base foundation structure at the bottom of the long frame of the third connecting frame, and close to the short frame of the third connecting frame.

[0031] Further, the calculation method of the first thickness of the adjustment shim includes the following steps:

[0032] If the second angle α 2 > 0, the first thickness of the adjustment shims corresponding to the first-base foundation structure and the second-base foundation structure is 0, and the first thickness of the other adjustment shims is the product of the straight-line distance between each adjustment shim and the first-base foundation structure and the second angle α 2 ; if the second angle a 2 < 0, the first thickness of the adjustment shims corresponding to the fourth-base foundation structure and the fifth-base foundation structure is 0, and the thickness of the other adjustment shims is the product of the straight-line distance between each base foundation structure and the fourth-base foundation structure and the second angle a 2 .

[0033] Further, the calculation method of the second thickness of the adjustment shim includes the following steps:

[0034] If the third angle a 3 < 0, the second thickness of the adjustment shim corresponding to the seventh-base foundation structure is 0, and the second thickness of the other adjustment shims is the product of the straight-line distance between each base foundation structure and the seventh-base foundation structure and the third angle a 3 ; if the third angle a 3<0, then the second thickness of the first base foundation structure and the fourth base foundation structure corresponding to the adjusting shim is 0, and the second thickness of the other adjusting shims is the product of the linear distance between each base foundation structure and the first base foundation structure and the third angle a 3 .

[0035] Compared with the prior art, the present invention has at least the following beneficial effects:

[0036] By providing a foundation structure, which includes a bottom foundation structure and a reaction foundation structure, both the bottom foundation structure and the reaction foundation structure can be disassembled into small-sized anchor feet and mounting seats, facilitating the processing and transportation of each structural member.

[0037] Furthermore, by providing a positioning tooling, the foundation structure is installed on the corresponding positioning tooling, and the relative positions of the base foundation structure and the reaction foundation structure are measured using a double theodolite measurement system, and the thickness of the adjusting shim is calculated to adjust the above relative positions, reducing the installation error and achieving higher installation accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 Schematic diagram of the base foundation structure in a specific embodiment of the present invention;

[0039] Figure 2 Schematic diagram of the reaction foundation structure in a specific embodiment of the present invention;

[0040] Figure 3 Schematic diagram of the structure of the adjusting shim in a specific embodiment of the present invention;

[0041] Figure 4 Schematic diagram of the structure of the base foundation positioning tooling in a specific embodiment of the present invention;

[0042] Figure 5 Schematic diagram of the structure of the reaction foundation structure of the present invention;

[0043] Figure 6A Top view of the installation of the reaction foundation structure and the reaction foundation positioning tooling of the present invention;

[0044] Figure 6B Bottom view of the installation of the reaction foundation structure and the reaction foundation positioning tooling of the present invention;

[0045] Figure 7A Top view of the installation of the base foundation structure and the base foundation positioning tooling of the present invention;

[0046] Figure 7B Bottom view of the installation of the base foundation structure and the base foundation positioning tooling of the present invention;

[0047] Figure 8ASchematic diagram of the central coordinate system structure of the cube mirror on the reaction force foundation positioning tooling of the present invention;

[0048] Figure 8B Schematic diagram of the central coordinate system structure of the cube mirror on the base foundation structure positioning tooling of the present invention;

[0049] Figure 9 Schematic diagram of the overall installation result of the present invention;

[0050] Figure 10A Schematic diagram of the mating surface of the thrust bench fixing frame and the reaction force foundation structure of the present invention;

[0051] Figure 10B Schematic diagram of the pin hole positioning of the mating surface of the thrust bench fixing frame and the reaction force foundation structure of the present invention. Detailed implementation manners

[0052] The following will describe in more detail an inclined rocket engine thrust measurement bench foundation structure and its installation method of the present invention with reference to the schematic diagrams, in which the preferred embodiments of the present invention are shown. It should be understood that those skilled in the art can modify the present invention described herein while still achieving the advantageous effects of the present invention. Therefore, the following description should be understood as a broad guidance for those skilled in the art and not as a limitation to the present invention.

[0053] In the following paragraphs, the present invention will be described more specifically by way of example with reference to the accompanying drawings. The advantages and features of the present invention will be clearer according to the following description and the claims. It should be noted that the drawings are all in a very simplified form and use non-precise scales, only for the purpose of conveniently and clearly assisting in explaining the purpose of the embodiments of the present invention.

[0054] Embodiment 1

[0055] As Figure 1 、 Figure 2 、 Figure 3 and Figure 9 shown, an embodiment of the present invention provides a thrust measurement bench foundation structure, including a bench 16, a base foundation structure 15 and a reaction force foundation structure 13.

[0056] Specifically, the base foundation structure 15 includes a first bench mounting seat 1, a first anchor leg 2 and an adjusting shim 5. The first bench mounting seat 1 is of an I-shaped structure. The first anchor leg 2 is connected to the bottom of the first bench mounting seat 1. The adjusting shim 5 is installed on the top of the first bench mounting seat 1. The base foundation structure 15 is installed at the bottom of the bench 16.

[0057] The reaction force foundation structure 13 includes a second bench mount 3 and a second anchor leg 4. The top of the second bench mount 3 is two lug structures, and the second anchor leg 4 is connected to the bottom of the second bench mount 3. The reaction force foundation structure 13 is installed on the top of the bench 16.

[0058] Specifically, the bench 16 includes a reaction force foundation circular frame 29, a base foundation circular frame 30, a plurality of vertical beams 32, and an inclined beam 31.

[0059] The reaction force foundation circular frame 29 is connected to the base foundation circular frame 30 through the inclined beam 31, and the reaction force foundation structure is installed on the reaction force foundation circular frame 29.

[0060] The vertical beams 32 are uniformly installed on the sides of the reaction force foundation circular frame 29 and the base foundation circular frame 30, and the base foundation structure 15 is installed at the bottom of the vertical beams 32.

[0061] In this embodiment, the base foundation structure 15 and the reaction force foundation structure 13 can be respectively disassembled into a first mount, a first anchor leg 2, a second mount, and a second anchor leg 4, reducing the volume of the base foundation structure and the reaction force foundation structure, and facilitating the processing and transportation of each structural member.

[0062] Embodiment 2

[0063] As Figures 4 - 5 shown, an embodiment of the present invention provides a thrust measurement bench positioning tooling, including a base foundation positioning tooling 14 and a reaction force foundation positioning tooling 12.

[0064] The base foundation positioning tooling 14 is used to fix the base foundation structure. The base foundation positioning tooling 14 includes a first connecting frame 17, a second connecting frame 19, a third connecting frame 18, and a fourth connecting frame 20. The first connecting frame 17 is a cross-shaped structure composed of a short frame and a long frame. The second connecting frame 19 and the third connecting frame 18 are L-shaped structures composed of a long frame and a short frame. The short frame of the second connecting frame 19 is installed on one side of the short frame of the first connecting frame 17, the short frame of the third connecting frame 18 is installed on the other side of the short frame of the first connecting frame 17, and the fourth connecting frame 20 is installed on the upper surfaces of the long frames of the second connecting frame 19 and the third connecting frame 18 and away from the first connecting frame 17.

[0065] The reaction force foundation positioning tooling 12 includes an arc frame 6, a plurality of support beams 9, and a center frame 7. The arc frame 6 is provided with a center circle, the center frame 7 is installed within the center circle of the arc frame 6, one side of the plurality of support beams 9 is respectively connected to the four sides of the center frame 7, and the arc frame 6 is installed on the other side of the support beams 9.

[0066] Further, the central frame 7 further includes a fixing frame 10 disposed on the upper surface of the central frame 7; a first cube mirror mounting seat 8 is mounted on the fixing frame 10.

[0067] Further, a second cube mirror mounting seat 11 is disposed on the fourth connecting frame 20.

[0068] In this embodiment, the base positioning tooling 14 and the reaction force base positioning tooling 12 are respectively used to install the base foundation structure 15 and the reaction force base positioning tooling 12. Cube mirror mounting seats are provided on both positioning toolings, facilitating the measurement of the relative positions of the base foundation structure 15 and the reaction force base structure 13 and comparing them with the ideal positions, accurately measuring the errors, and making the installation of the thrust bench 16 more accurate.

[0069] In a specific embodiment, there are eight base foundation structures 15, namely the first base foundation structure 21, the second base foundation structure 22, the third base foundation structure 23, the fourth base foundation structure 24, the fifth base foundation structure 25, the sixth base foundation structure 26, the seventh base foundation structure 27, and the eighth base foundation structure 28;

[0070] Install the seventh base foundation structure 27 and the eighth base foundation structure 28 at the bottom ends of the long frame of the first connecting frame 17 of the base foundation positioning tooling, and make the eighth base foundation structure 28 close to the fourth connecting frame 20 of the base foundation positioning tooling;

[0071] Install the first base foundation structure 21 at the bottom of the long frame of the second connecting frame 19 of the base foundation positioning tooling, and at the intersection of the second connecting frame 19 and the fourth connecting frame 20; install the third base foundation structure 23 at the bottom of the short frame of the second connecting frame 19, and near the short frame of the first connecting frame 17; install the second base foundation structure 22 at the bottom of the long frame of the second connecting frame 19, and near the short frame of the second connecting frame 19.

[0072] In this embodiment, the eight base foundation structures are respectively installed at the corresponding positions on the base foundation tooling. A coordinate system is established on the positioning tooling by using a cube mirror and a theodolite, and the thickness of the adjustment shim corresponding to each base foundation structure is calculated. The relative positions of the base foundation structure and the reaction force base structure are adjusted by installing the adjustment shim, reducing the installation error and improving the installation accuracy.

[0073] Embodiment III

[0074] In this embodiment, a method for installing a thrust measurement bench is proposed, including the following steps:

[0075] S1. Install the base foundation structure 15 and the reaction force foundation structure 13 onto the base foundation positioning tooling 14 and the reaction force foundation positioning tooling 12 respectively, and complete the pouring construction of the reaction force foundation structure 13 and the base foundation structure 15;

[0076] S2. Install a cube mirror on each of the first cube mirror mounting base 8 and the second cube mirror mounting base 11; Use a double theodolite measurement system to aim two theodolites at the two cube mirrors simultaneously, establish a reference coordinate system X0Y0Z0 and a comparison coordinate system X1Y1Z1 at the center of each cube mirror respectively, and obtain the angles of the three coordinate axes of the comparison coordinate system X1Y1Z1 relative to the reference coordinate system X0Y0Z0;

[0077] S3. Input the theoretical coordinate position of the comparison coordinate system X1Y1Z1 relative to the reference coordinate system X0Y0Z0 into the measurement system. According to the angles of the three coordinate axes of the comparison coordinate system X1Y1Z1 relative to the reference coordinate system X0Y0Z0, the measurement system outputs that the reaction force foundation positioning tooling 12 rotates by a first angle a around the tilt direction 1 and the base foundation positioning tooling 14 rotates by a second angle a around the horizontal direction 2 and rotates by a third angle a around the direction of the fourth connecting frame of the base foundation positioning tooling 14 3 ;

[0078] S4. Reserve a plurality of circular arc-shaped scoring lines A with a radius of R0 and conical positioning points C located on the scoring lines on the mating surface of the reaction force foundation circular frame 29 and the reaction force foundation structure 13. Use an arc positioning tool to scribe a circular curve with the conical positioning point C as the center, and the curve radius R1 is R1 = R0 * a 1 , and drill holes with the intersection points of the scoring line and the circular curve as the center points O of the positioning pin holes; When the curve radius R1 > 0, drill the positioning pin holes on the clockwise side of the conical positioning point, and when the curve radius R1 < 0, drill the positioning pin holes on the counterclockwise side of the conical positioning point;

[0079] S5. Remove the positioning tooling of the reaction force foundation structure 13, and install the positioning tooling of the reaction force foundation structure 13 on the reaction force foundation circular frame 29;

[0080] S6. According to the second angle α 2 and the third angle α 3 , calculate the first thickness and the second thickness of each position adjusting shim, and take the sum of the first thickness and the second thickness of each position adjusting shim as the final thickness of each position adjusting shim;

[0081] S7. Remove the positioning tooling of the base foundation structure 15, and install the adjusting shims with the final thickness on the corresponding base foundation structure 15;

[0082] S8. Install the thrust measurement bench on the base foundation structure 15.

[0083] Specifically, in step S1, according to the positioning requirements, use the secondary grouting method to complete the pouring construction of the reaction force foundation structure 13 and the base foundation structure 15. During and after the cement curing process, the reaction force foundation positioning tooling 12 and the base foundation tooling cannot be removed.

[0084] In this embodiment, after the cement pouring, the positions of the reaction force foundation structure 13 and the base foundation structure 15 have been fixed.

[0085] Specifically, in step S2, as shown in FIG. 8, bond a cube mirror on each of the first cube mirror mounting base 8 and the second cube mirror mounting base 11; use a double theodolite measurement system to aim two theodolites at the two cube mirrors simultaneously, and establish a reference coordinate system X0Y0Z0 and a comparison coordinate system X1Y1Z1 at the center of each cube mirror respectively, and obtain the angles of the three coordinate axes of the comparison coordinate system X1Y1Z1 relative to the above reference coordinate system X0Y0Z0; where Y0 and Y1 are in the direction perpendicular to the paper surface, so their directions are not shown in the figure.

[0086] Specifically, the theoretical coordinate position of the comparison coordinate system relative to the reference coordinate system in step S3: the Y1 axis is parallel to the Y0 axis, the X1 axis forms an angle of 45° with the X0 axis, and the Z1 axis forms an angle of 45° with the Z0 axis.

[0087] Specifically, in step S6, the calculation method of the first thickness of the adjusting shim 5 is as follows: if α 2 >0, then the first thickness of the adjusting shim 5 corresponding to the first base foundation structure 23 and the second base foundation structure 24 is 0, and the first thickness of the other adjusting shims 5 is the product of the distance between each adjusting shim 5 and the first base foundation structure 23 and the angle α 2 ; if α 2 <0, then the first thickness of the adjusting shim 5 corresponding to the fourth base foundation structure 26 and the fifth base foundation structure 27 is 0, and the thickness of the other adjusting shims 5 is the product of the linear distance between each base foundation structure 15 and the fourth base foundation structure 26 and the angle α 2 ;

[0088] The calculation method of the second thickness of the adjusting shim 5 is: if α 3 >0, then the second thickness of the adjusting shim 5 corresponding to the seventh base foundation structure 21 is 0, and the second thickness of the other adjusting shims 5 is the product of the linear distance between each base foundation structure 15 and the seventh base foundation structure 2 and the angle α 3 ; if α 3If <0, the second thickness of the first base foundation structure 23 and the fourth base foundation structure 26 corresponding to the adjusting shim 5 is 0, and the second thicknesses of the other adjusting shims 5 are the straight-line distances between the respective base foundation structures 15 and the first base foundation structure 23 multiplied by the angle α 3 .

[0089] Further, in a specific embodiment, the thickness of the adjusting shim 5 can be selected by stacking adjusting shims 5 of various thicknesses. For example, if a shim with a thickness of 6.5 mm is required, one shim with a thickness of 0.5 mm, 1 mm, and 5 mm can be selected. If the required thickness is the same as the existing shim thickness, exactly 0.5 mm, 1 mm, 2 mm, 5 mm, then it can be used directly.

[0090] In this embodiment, a double theodolite measurement system is adopted. Two theodolites are aligned with two cube mirrors, and a comparison coordinate system and a reference coordinate system are established. The actual relative positions of the two coordinate systems are measured, compared and calculated with the actual relative positions, and the corresponding angles are calculated. According to the corresponding angles and the distances between the respective base foundation structures 15, the thickness of the adjusting shim required for each position is calculated. The adjusting shim 5 with the corresponding thickness is installed on the corresponding base foundation structure, and the relative positions of the reaction force foundation structure 13 and the base foundation structure 15 are adjusted, so that the installation accuracy is higher, and the error existing during the installation of the thrust bench 16 is effectively reduced. In summary, the beneficial effects of the present invention are as follows

[0091] By providing a foundation structure, the foundation structure includes two parts, a bottom foundation structure and a reaction force foundation structure. The bottom foundation structure and the reaction force foundation structure can both be disassembled into small-sized anchor feet and mounting seats, which is convenient for the processing and transportation of each structural member.

[0092] Further, by providing a positioning tooling, the foundation structure is installed on the corresponding positioning tooling. The relative positions of the base foundation structure and the reaction force foundation structure are measured by using a double theodolite measurement system, and the thickness of the adjusting shim is calculated to adjust the above relative positions, reduce the installation error, and the installation accuracy is higher.

[0093] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these changes and modifications.

Claims

1. A method for installing a thrust measurement bench, characterized in that, it includes the following steps: S1. Respectively install the base foundation structure and the reaction force foundation structure on the base foundation positioning tooling and the reaction force foundation positioning tooling, and complete the pouring construction of the reaction force foundation structure and the base foundation structure; S2. Install a cube mirror on each of the first cube mirror mounting seat and the second cube mirror mounting seat; use a double theodolite measurement system to simultaneously aim two theodolites at the two cube mirrors, and establish a reference coordinate system and a comparison coordinate system at the center of each cube mirror respectively, and obtain the angles of the three coordinate axes of the comparison coordinate system relative to the reference coordinate system; S3. Input the theoretical coordinate position of the comparison coordinate system relative to the reference coordinate system into the measurement system. According to the angles of the three coordinate axes of the comparison coordinate system relative to the reference coordinate system, the measurement system outputs that the reaction force base positioning tooling rotates by the first angle α around the inclination direction 1 and the base base positioning tooling rotates by the second angle α around the horizontal direction 2 and rotates by the third angle α around the direction of the fourth connecting frame of the base base positioning tooling 3 ; S4. Reserve a plurality of circular arc-shaped scoring lines with a radius of R0 and conical positioning points located on the scoring lines on the mating surface of the reaction force base circular frame and the reaction force base structure. Use an arc positioning tool to draw a circular curve with the conical positioning point as the center of the circle, and the curve radius R1 is R1 = R0 * α 1 , and punch holes with the intersection point of the scoring line and the circular curve as the center point of the positioning pin hole; when the curve radius R1 > 0, punch the positioning pin hole on the clockwise side of the conical positioning point, and when the curve radius R1 < 0, punch the positioning pin hole on the counterclockwise side of the conical positioning point; S5. Remove the reaction force foundation positioning tooling, and install the reaction force foundation positioning tooling on the reaction force foundation circular frame; S6. According to the second angle α 2 and the third angle α 3 , calculate the first thickness and the second thickness of each position adjusting spacer, and use the sum of the first thickness and the second thickness of each position adjusting spacer as the final thickness of each position adjusting spacer; S7. Remove the base foundation positioning tooling, and install the adjustment shim with the final thickness on the corresponding base foundation structure; S8. Install the thrust measurement bench on the base foundation structure.

2. The method for installing a thrust measurement bench according to claim 1, characterized in that, installing the base foundation structure on the base foundation positioning tooling includes the following steps: Provide 8 base foundation structures, namely the first base foundation structure, the second base foundation structure, the third base foundation structure, the fourth base foundation structure, the fifth base foundation structure, the sixth base foundation structure, the seventh base foundation structure and the eighth base foundation structure; Install the seventh base foundation structure and the eighth base foundation structure at the bottoms of both ends of the long frame of the first connecting frame of the base foundation positioning tooling, and make the eighth base foundation structure close to the fourth connecting frame of the base foundation positioning tooling; Install the first base foundation structure at the bottom of the long frame of the second connecting frame of the base foundation positioning tooling, and at the intersection of the second connecting frame and the fourth connecting frame; install the third base foundation structure at the bottom of the short frame of the second connecting frame, and close to the short frame of the first connecting frame; install the second base foundation structure at the bottom of the long frame of the second connecting frame, and close to the short frame of the second connecting frame; Install the fourth base foundation structure at the bottom of the long frame of the third connecting frame of the base foundation positioning tooling, and at the intersection of the third connecting frame and the fourth connecting frame; install the sixth base foundation structure at the bottom of the short frame of the third connecting frame, and close to the short frame of the first connecting frame; install the fifth base foundation structure at the bottom of the long frame of the third connecting frame, and close to the short frame of the third connecting frame.

3. The method for installing a thrust measurement bench according to claim 2, characterized in that, The calculation method of the first thickness of the adjusting shim includes the following steps: If the second angle α 2 > 0, the first thickness of the adjusting shims corresponding to the first base foundation structure and the second base foundation structure is 0, and the first thickness of the other adjusting shims is the product of the linear distance between each adjusting shim and the first base foundation structure and the second angle α 2 ; If the second angle α 2 < 0, the first thickness of the adjusting shims corresponding to the fourth base foundation structure and the fifth base foundation structure is 0, and the thickness of the other adjusting shims is the product of the linear distance between each base foundation structure and the fourth base foundation structure and the second angle α2.

4. The method for installing a thrust measurement bench according to claim 2, characterized in that, the calculation method of the second thickness of the adjustment shim includes the following steps: If the third angle α 3 > 0, the second thickness of the adjusting shim corresponding to the seventh base foundation structure is 0, and the second thicknesses of the other adjusting shims are the linear distances between each base foundation structure and the seventh base foundation structure multiplied by the third angle α 3 ; if the third angle α 3 < 0, the second thicknesses of the adjusting shims corresponding to the first base foundation structure and the fourth base foundation structure are 0, and the second thicknesses of the other adjusting shims are the linear distances between each base foundation structure and the first base foundation structure multiplied by the third angle α 3 .

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