CN114993557B - Static balance testing device - Google Patents
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- CN114993557B CN114993557B CN202210924281.4A CN202210924281A CN114993557B CN 114993557 B CN114993557 B CN 114993557B CN 202210924281 A CN202210924281 A CN 202210924281A CN 114993557 B CN114993557 B CN 114993557B
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- 230000003068 static effect Effects 0.000 title claims abstract description 80
- 238000012360 testing method Methods 0.000 title claims abstract description 29
- 238000009434 installation Methods 0.000 claims abstract description 10
- 239000007787 solid Substances 0.000 claims abstract description 5
- 238000005259 measurement Methods 0.000 claims description 39
- 229910000831 Steel Inorganic materials 0.000 claims description 36
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- 239000000463 material Substances 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 8
- 239000007769 metal material Substances 0.000 claims description 6
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- 230000002787 reinforcement Effects 0.000 description 20
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/12—Static balancing; Determining position of centre of gravity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/30—Compensating imbalance
- G01M1/36—Compensating imbalance by adjusting position of masses built-in the body to be tested
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Abstract
The application provides a static balance testing device, relate to the static balance test field, it includes a static balance measuring assembly, a static balance measuring assembly includes first inner box body, a image acquisition device, first ball, first inner box body is the solid of revolution, the vertical setting in gyration axis of first inner box body, the inner wall of first inner box body includes first installation face and first measuring face, first installation face is located the inboard top surface of first inner box body, first measuring face is located the inboard bottom surface of first inner box body, first installation face level sets up, the shape of first measuring face is the sphere form, first measuring face is concave-down setting, first ball is placed on first measuring face, first ball and first measuring face roll connection, be equipped with first polar coordinate system on the first measuring face, first image acquisition device is suitable for gathering the coordinate value of ball on first polar coordinate system. The static balance state of the upper end of the foundation pile can be obtained by measuring the coordinate value of the first ball.
Description
Technical Field
The application relates to the technical field of static balance testing, in particular to a static balance testing device.
Background
Static balance measurement refers to balance measurement of a mechanical part in a static state, and when a stress imbalance exists in the static state of the mechanical part, the mechanical part needs to be subjected to balancing or load configuration so as to be close to a balanced state.
In the prior art, a crane foundation pile (or called a fixed base) is generally composed of an upper steel plate, a lower steel plate and a steel reinforcement cage, the steel reinforcement cage is vertically arranged, the upper steel plate and the lower steel plate are respectively and horizontally arranged at the upper end and the lower end of the steel reinforcement cage, the upper steel plate and the lower steel plate are respectively welded and fixed with the steel reinforcement cage, the upper steel plate is fixedly connected with a base of a crane through bolts, in a construction process, a foundation pit is usually dug on the ground, then the lower steel plate, the steel reinforcement cage and the upper steel plate are placed into the foundation pit, concrete is poured into the foundation pit, the upper steel plate is kept in a horizontal state, after the concrete is completely solidified, the base of the crane is fixedly connected with the upper steel plate through bolts, the steel reinforcement cage is fixedly arranged inside the concrete, and the concrete is fixedly arranged inside soil, so as to support a support column of the crane.
The cantilever of the crane is usually provided with a balancing weight, the cantilever of the crane lifts an article through a lifting rope, when two ends of the cantilever of the crane (the lifted article and the balancing weight are positioned on two sides of an upright post) are unbalanced, the balancing weight needs to slide along the cantilever, and the distance between the balancing weight and the upright post is adjusted, so that the moments at two ends of the cantilever are balanced.
Therefore, a device capable of carrying out static balance test on the crane foundation pile is urgently needed.
Disclosure of Invention
The application provides a static balance testing arrangement for carry out static balance to loop wheel machine foundation pile and measure.
In order to achieve the above object, in an embodiment of the present application, a static balance testing device is provided, including a first static balance measuring assembly, the first static balance measuring assembly includes a first inner box body, a first image collecting device, a first ball, the first inner box body is a rotation body, a rotation central axis of the first inner box body is vertically disposed, an inner wall of the first inner box body includes a first installation surface and a first measurement surface, the first installation surface is located a top surface of an inner side of the first inner box body, the first measurement surface is located a bottom surface of the inner side of the first inner box body, the first installation surface is horizontally disposed, a shape of the first measurement surface is spherical, the first measurement surface is concave-shaped, a spherical center of the first measurement surface is located on a first rotation central axis of the first inner box body, the first ball is located on the first measurement surface, the first ball is connected with the first measurement surface in a rolling manner, the first image collecting device is located on the first rotation central axis, the first measurement surface is provided with a first ball, the first ball is located on a polar coordinate system, and the first rotation central axis is suitable for collecting an origin of an image.
In some embodiments of the present application, the first static balance measuring assembly further includes a first outer box, the first inner box is located inside the first outer box, an upper surface of an outer side of the first inner box is fixedly connected to an upper surface of an inner side of the first outer box, a gap is provided between a side surface of an outer side of the first inner box and a side surface of an inner side of the first outer box, a gap is provided between a lower surface of an outer side of the first inner box and a lower surface of an inner side of the first outer box, and an upper surface of an outer side of the first outer box is horizontally disposed.
In some embodiments of the present application, the first outer box body includes a first mounting plate and a first cover body, the first mounting plate level sets up, the opening of the first cover body sets up, the first mounting plate is located the open-ended inboard of the first cover body, the open-ended edge of the first cover body with the edge fixed connection of first mounting plate, first interior box body is located the first cover body with between the first mounting plate, the outer wall of first interior box body with the clearance has between the inner wall of the first cover body, the upper surface of the first interior box body outside with the lower fixed connection of first mounting plate.
In some implementations of embodiments of the present application, the first mounting plate is made of a hard metal material and the first enclosure is made of a plastic material.
In some embodiments of this application embodiment, static balance testing arrangement still includes the static balance measuring assembly of second, the static balance measuring assembly of second includes box body, second image acquisition device, second ball in the second, the box body is the solid of revolution in the second, the vertical setting in gyration axis of box body in the second, the inner wall of box body includes second installation face and second measurement face in the second, the second installation face is located the top surface of the inboard of box body in the second, the second measurement face is located the bottom surface of the inboard of box body in the second, second installation face level sets up, the shape of face is measured for the sphere form to the second, the second measurement face sets up to recessed, the centre of sphere of face is measured to the second is located on the second gyration center axis of box body in the second, the second ball falls to be put on the second measurement face, the second ball with the second measurement face roll connection, the second image acquisition device is located on the second gyration center axis, be equipped with the second measurement face, the second polar coordinate system of origin is located on the polar coordinate system of second rotation center axis, the second polar coordinate system is suitable for the second collection device on the polar coordinate system.
In some embodiments of the embodiment of the application, the second static balance measuring component further comprises a second outer box body, the second inner box body is located inside the second outer box body, the lower surface outside the second inner box body is fixedly connected with the lower surface inside the second outer box body, a gap is formed between the side surface outside the second inner box body and the side surface inside the second outer box body, a gap is formed between the upper surface outside the second inner box body and the upper surface inside the second outer box body, and the lower surface level outside the second outer box body is arranged.
In some embodiments of the embodiment of the present application, the second outer box body includes a second mounting plate and a second cover body, the second mounting plate level sets up, the opening of the second cover body sets up down, the second mounting plate is located the open-ended inboard of the second cover body, the open-ended edge of the second cover body with the edge fixed connection of second mounting plate, box body is located in the second cover body with between the second mounting plate, the outer wall of box body with have the clearance between the inner wall of the second cover body in the second, the lower surface of the box body outside in the second with the last fixed surface of second mounting plate is connected.
In some implementations of embodiments of the present application, the second mounting plate is made of a hard metal material and the second enclosure is made of a plastic material.
In some implementations of embodiments of the present application, the first outer shell is a solid of revolution, the central axis of revolution of the first outer shell and the first central axis of revolution are on the same vertical line; the second outer box body is a revolving body, and the revolving central axis of the second outer box body and the second revolving central axis are positioned on the same vertical line.
In some implementations of embodiments of the present application, the first center axis of revolution and the second center axis of revolution are located on a same vertical line.
The application has the following beneficial effects:
through measuring the coordinate value after first ball and the roll of second ball respectively, obtain foundation pile upper end and foundation pile lower extreme inclination degree and torsion degree, for example, the inclination of foundation pile upper end is P1, the torsion angle of foundation pile upper end is Q1, the inclination of foundation pile lower extreme is P2, the torsion angle of foundation pile lower extreme is Q2, then regard the average value of the inclination of foundation pile upper end and the inclination of foundation pile lower extreme as the holistic inclination P0 of foundation pile, and regard the average value of the torsion angle of foundation pile upper end and the torsion angle of foundation pile lower extreme as the holistic torsion angle Q0 of foundation pile, promptly: p0= (P1 + P2)/2, Q0= (Q1 + Q2)/2. The static balance performance of the foundation pile is judged through the measured integral inclination angle and torsion angle of the foundation pile, the crane lifts articles with different weights corresponding to different static balance parameters (P0 and Q0), a static balance line graph of the foundation pile is drawn according to a plurality of actually measured P0 and Q0, and the influence of lifting articles with corresponding weights on the static balance state of the foundation pile can be pre-judged in advance according to the static balance line graph of the foundation pile, so that the position of the counterweight block is adjusted adaptively, the foundation pile is kept in an original static balance state, and the bending or torsion or tensile damage to the foundation pile is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of a prior art crane and foundation pile connection structure;
FIG. 2 is a schematic structural diagram of a static balance testing device in an embodiment of the present application;
FIG. 3 is a cross-sectional view of a first static balance measurement assembly taken along a plane passing through a first central axis of rotation in an embodiment of the present application;
FIG. 4 isbase:Sub>A cross-sectional view ofbase:Sub>A portion of the structure taken along line A-A of FIG. 3;
FIG. 5 is a schematic diagram illustrating a configuration of the first rolling ball after rolling in the embodiment of the present application;
FIG. 6 is a cross-sectional view of a second static balance measurement assembly taken along a plane passing through a second central axis of rotation in an embodiment of the present application;
FIG. 7 is a cross-sectional view of a portion of the structure taken along line B-B of FIG. 6;
FIG. 8 is a schematic view of the second ball bearing of the embodiment of the present application after rolling;
FIG. 9 is a schematic structural view of the static balance testing device connected with the foundation pile in the embodiment of the present application;
fig. 10 is a schematic structural view of the foundation pile in the embodiment of the present application when it is inclined.
Reference numerals:
101. a first static balance measurement assembly; 102. a first inner box; 103. a first image acquisition device; 104. a first ball bearing; 105. a first mounting surface; 106. a first measuring surface; 107. a first central axis of revolution; 108. a first polar coordinate system; 109. a first outer case; 110. a first mounting plate; 111. a first cover body; 112. a second static balance measurement assembly; 113. a second inner box body; 114. a second image acquisition device; 115. a second ball bearing; 116. a second mounting surface; 117. a second measuring surface; 118. a second central axis of revolution; 119. a second polar coordinate system; 120. a second outer box; 121. a second mounting plate; 122. a second cover body; 123. steel plate mounting; 124. a lower steel plate; 125. a reinforcement cage; 126. concrete; 127. a support pillar; 128. a cantilever; 129. a counterweight block; 130. a lifting rope; 131. an article; 132. a base; 133. a data line; 134. and (4) a computer.
Detailed Description
Embodiments of the present application are described in further detail below with reference to the figures and examples, and the terminology used in the description of the embodiments of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the present application.
As shown in fig. 1, in the prior art, a crane foundation pile (or called a fixed base) generally comprises an upper steel plate 123, a lower steel plate 124 and a reinforcement cage 125, the reinforcement cage 125 is vertically arranged, the upper steel plate 123 and the lower steel plate 124 are respectively horizontally arranged at the upper end and the lower end of the reinforcement cage 125, the upper steel plate 123 and the lower steel plate 124 are respectively welded and fixed with the reinforcement cage 125, the upper steel plate 123 is fixedly connected with a base 132 of a crane through bolts, in the construction process, a foundation pit is usually dug on the ground, then the lower steel plate 124, the reinforcement cage 125 and the upper steel plate 123 are placed into the foundation pit, concrete 126 is poured into the foundation pit to keep the upper steel plate 123 in a horizontal state, after the concrete 126 is completely solidified, the base 132 and the upper steel plate 123 of the crane are fixedly connected through bolts, the reinforcement cage 125 is fixedly arranged inside the concrete 126, and the concrete 126 is fixedly arranged inside the soil, so as to support a support column 127 of the crane.
The balance weight 129 is usually arranged on the cantilever 128 of the crane, the cantilever 128 of the crane lifts an object 131 through the lifting rope 130, when two ends of the cantilever 128 of the crane (the lifted object 131 and the balance weight 129 are located on two sides of the upright) are unbalanced, the balance weight 129 needs to slide along the cantilever 128, the distance between the balance weight 129 and the upright needs to be adjusted, so that the moments at the two ends of the cantilever 128 are balanced, however, in the prior art, after the cantilever 128 lifts the object 131 (before the balance weight 129 slides and adjusts), the moments at the two ends of the cantilever 128 are unbalanced, the upright tends to incline or bend under the action of the moment applied by the cantilever 128, the upright is dragged and supported by the foundation pile in a static state, so that the upright is prevented from being excessively bent or inclined, but the load which the foundation pile can bear is limited, and when the load borne by the foundation pile exceeds a preset value, the tendency that the two ends of the cantilever 128 are unbalanced, and the foundation pile is aggravated, and finally the damage to the foundation pile or the cantilever of the 128 toppling of the cantilever 128 occurs. Therefore, there is a need for a device that can perform static balance testing on a crane foundation pile.
As shown in fig. 2 to fig. 5, in order to solve the above technical problems in the prior art, in an embodiment of the present application, a static balance testing apparatus is provided, which includes a first static balance measuring assembly 101, where the first static balance measuring assembly 101 includes a first inner box 102, a first image capturing device 103, and a first ball 104, the first inner box 102 is a rotating body, a central axis of rotation of the first inner box 102 is vertically disposed, an inner wall of the first inner box 102 includes a first mounting surface 105 and a first measuring surface 106, the first mounting surface 105 is located on a top surface of an inner side of the first inner box 102, the first measuring surface 106 is located on a bottom surface of the inner side of the first inner box 102, the first mounting surface 105 is horizontally disposed, the first measuring surface 106 is shaped as a spherical surface, the first measuring surface 106 is recessed downward, a center of the first measuring surface 106 is located on a first central axis of rotation 107 of the first inner box 102, the first ball 104 is located on the first measuring surface 106, the first ball 104 is connected with the first ball 104, the first ball 104 is located on a polar coordinate system 108, and the first polar coordinate system 108 is located on the first polar coordinate system 103, and the first polar coordinate system 106 is suitable for capturing device 108.
With reference to fig. 9 and 10, in the above embodiment of this embodiment, the first static balance testing device is fixed at the central position of the lower surface of the upper steel plate 123, after the concrete 126 is solidified, the first static balance testing device and the foundation pile are kept in a relatively static state, when the foundation pile is tilted, the first static balance testing device is driven to tilt, the first ball 104 rolls toward the lowest position of the first measurement surface 106 under the action of gravity (i.e., rolls from O1 in fig. 4 to M1 in fig. 5), the position of M1 adopts the central point of the first ball 104 in the photograph, the first image capturing device 103 adopts a camera with a wide-angle lens (or a spherical lens), the first image capturing device 103 captures coordinate values (ρ 1, θ 1) of the first ball 104 in the first polar coordinate system 108, ρ 1 is the distance between the first ball 104 and O1 (since the shape of the first measurement surface 106 is spherical, the distance is the length from the point O1 to the point M1), θ 1 is the arc line between the point O1 and the polar point M1, and the origin of the first measurement surface 108 is the first polar coordinate system X1. In the construction process, one end of a data line 133 is connected with the first image acquisition device 103, the other end of the data line 133 is led out of the foundation pit (extends out of the ground to be prevented from being buried by concrete 126), the data line 133 is connected with a computer 134, the computer 134 reads a picture acquired by the first image acquisition device 103, coordinate values (rho 1 and theta 1) of a point M1 are measured through a manual operation computer, or the coordinate values (rho 1 and theta 1) of the point M1 are automatically calculated through software, the inclination degree of the upper end of the foundation pile can be judged through the coordinate values of the point M1, the larger rho 1 is, the larger the inclination degree of the upper end of the foundation pile is, a certain torsion acting force is generated on the foundation pile when the upright pile is inclined or bent, and when the upper end of the foundation pile is twisted, the first ball 104 rolls around an original point O1, namely the larger theta 1 is, the larger the torsion degree of the upper end of the foundation pile is.
In some embodiments of the present embodiment, the first static balance measuring assembly 101 further includes a first outer box 109, the first inner box 102 is located inside the first outer box 109, an upper surface of an outer side of the first inner box 102 is fixedly connected to an upper surface of an inner side of the first outer box 109, a gap is formed between a side surface of the outer side of the first inner box 102 and a side surface of the inner side of the first outer box 109, a gap is formed between a lower surface of the outer side of the first inner box 102 and a lower surface of the inner side of the first outer box 109, and the upper surface of the outer side of the first outer box 109 is horizontally disposed.
Through the above embodiment of this embodiment, the first outer box 109 covers the outside of the first inner box 102, in the construction process, the first outer box 109 can isolate the concrete 126 outside, so as to prevent the concrete 126 from contacting the first inner box 102, after the concrete 126 is solidified, the concrete 126 is under the extrusion action of the reinforcement cage 125 (when the column is inclined, the concrete 126 generates a large tensile force on the reinforcement cage 125 and drives the reinforcement cage 125 to deflect to a certain degree, so as to extrude the concrete 126), brittle fracture may occur, and displacement can occur in the horizontal direction after the concrete 126 is brittle fracture, because a gap is formed between the first outer box 109 and the first inner box 102, and there is no concrete 126 in the gap, so that the gap can provide a displacement space for the brittle concrete 126, and the brittle concrete 126 is prevented from extruding the first inner box 102, so as to prevent the brittle concrete 126 from interfering with the position of the first ball 104 on the first measuring surface 106, and improve the measuring accuracy.
In some embodiments of this embodiment, the first outer box 109 includes a first mounting plate 110 and a first cover 111, the first mounting plate 110 is horizontally disposed, an opening of the first cover 111 is disposed upward, the first mounting plate 110 is located inside the opening of the first cover 111, an edge of the opening of the first cover 111 is fixedly connected to an edge of the first mounting plate 110, the first inner box 102 is located between the first cover 111 and the first mounting plate 110, a gap is formed between an outer wall of the first inner box 102 and an inner wall of the first cover 111, and an upper surface of an outer side of the first inner box 102 is fixedly connected to a lower surface of the first mounting plate 110.
Through the above embodiment of the embodiment, the first mounting plate 110 is welded or fastened with a bolt, the first cover 111 is clamped or adhered to the mounting plate, and the first cover 111 is separated from the first mounting plate 110 when the brittle concrete 126 extrudes the first cover 111, so that the first mounting plate 110 is prevented from being displaced, inclined or twisted, and the first inner box 102 is prevented from being displaced, inclined or twisted due to extrusion of the brittle concrete 126.
In some embodiments of the present embodiment, the first mounting plate 110 is made of a hard metal material, and the first cover 111 is made of a plastic material.
Through the above embodiment of this embodiment, when the brittle concrete 126 extrudes the first cover 111, the first cover 111 can deform, so as to avoid displacement, inclination or torsion of the first inner box 102 caused by the extrusion of the brittle concrete 126, reduce interference on the position measurement of the first ball 104, and improve the measurement accuracy.
As shown in fig. 2 and fig. 6 to 8, in some embodiments of the present embodiment, the static balance testing apparatus further includes a second static balance measuring assembly 112, the second static balance measuring assembly 112 includes a second inner box 113, a second image capturing device 114, and a second ball 115, the second inner box 113 is a rotating body, a central axis of rotation of the second inner box 113 is vertically disposed, an inner wall of the second inner box 113 includes a second mounting surface 116 and a second measuring surface 117, the second mounting surface 116 is located on a top surface of an inner side of the second inner box 113, the second measuring surface 117 is located on a bottom surface of the inner side of the second inner box 113, the second mounting surface 116 is horizontally disposed, the second measuring surface 117 is spherical, the second measuring surface 117 is disposed toward the bottom, a center of the second measuring surface 117 is located on a second central axis of rotation 118 of the second inner box 113, the second ball 115 is located on the second measuring surface 117, the second ball 115 is connected to the second ball 115, the second ball 115 is connected to the second image capturing device 114, the second ball 118 is located on a second central axis of rotation of the second polar coordinate system 119, and the second coordinate system is suitable for capturing device 118, and the second polar coordinate system 119 is located on the second central axis of rotation of the second inner box 113.
With reference to fig. 9 and 10, in the above embodiment of this embodiment, the second static balance testing device is fixed at the central position of the upper surface of the lower steel plate 124, after the concrete 126 is solidified, the second static balance testing device and the foundation pile keep a relatively stationary state, when the foundation pile is tilted, the second static balance testing device is driven to tilt, the second ball 115 rolls toward the lowest position of the second measurement surface 117 under the action of gravity (i.e., rolls from O2 in fig. 4 to M2 in fig. 5), the position of M2 is the central point of the second ball 115 in the picture, the second image capturing device 114 uses a camera with a wide-angle lens (or a spherical lens), the second image capturing device 114 captures coordinate values (ρ 2, θ 2) of the second ball 115 in the second polar coordinate system 119, ρ 2 is the distance between the second ball 115 and the origin O2 (since the second surface 117 is spherical, the distance is the length from O2 to M2), θ 2 is the arc line between O2 and M2, and X2 is the line between the polar coordinate system 119. In the construction process, one end of the data line 133 is connected with the second image acquisition device 114, the other end of the data line 133 is led out of the foundation pit (extends out of the ground to avoid being buried by the concrete 126), the data line 133 is connected with the computer 134, the computer 134 reads the photos acquired by the second image acquisition device 114, the coordinate values (rho 2 and theta 2) of the point M2 are measured through a manual computer, or the coordinate values (rho 2 and theta 2) of the point M2 are automatically calculated through software, the inclination degree of the upper end of the foundation pile can be judged through the coordinate values of the point M2, the larger rho 2 is, the larger the inclination degree of the lower end of the foundation pile is, a certain torsion acting force is generated on the foundation pile when the upright column is inclined or bent, and when the lower end of the foundation pile is twisted, the second ball 115 rolls around the origin O2, namely the larger theta 2 is, and the larger the torsion degree of the lower end of the foundation pile is.
In some embodiments of this embodiment, the second static balance measuring assembly 112 further includes a second outer box 120, the second inner box 113 is located inside the second outer box 120, a lower surface of an outer side of the second inner box 113 is fixedly connected to a lower surface of an inner side of the second outer box 120, a gap is formed between a side surface of an outer side of the second inner box 113 and a side surface of an inner side of the second outer box 120, a gap is formed between an upper surface of an outer side of the second inner box 113 and an upper surface of an inner side of the second outer box 120, and a lower surface of an outer side of the second outer box 120 is horizontally disposed.
Through the above embodiment of this embodiment, the second outer box 120 covers the outside of the second inner box 113, in the construction process, the second outer box 120 can isolate the concrete 126 outside, so as to prevent the concrete 126 from contacting the second inner box 113, and after the concrete 126 is solidified, the concrete 126 is under the extrusion action of the reinforcement cage 125 (when the upright column is inclined, a large tensile force is generated on the reinforcement cage 125 and the reinforcement cage 125 is driven to deflect to a certain extent, so as to extrude the concrete 126), so that brittle fracture may occur, and displacement may occur in the horizontal direction after the concrete 126 is brittle fracture, because a gap is provided between the second outer box 120 and the second inner box 113, and there is no concrete 126 in the gap, the gap can provide a displacement space for the brittle fractured concrete 126, so as to prevent the brittle fractured concrete 126 from extruding the second inner box 113, thereby preventing the brittle fractured concrete 126 from interfering with the position of the second ball 115 on the second surface 117, and improving the measurement accuracy.
In some embodiments of this embodiment, the second external box 120 includes a second mounting plate 121 and a second cover 122, the second mounting plate 121 is horizontally disposed, an opening of the second cover 122 is disposed downward, the second mounting plate 121 is located inside the opening of the second cover 122, an edge of the opening of the second cover 122 is fixedly connected to an edge of the second mounting plate 121, the second internal box 113 is located between the second cover 122 and the second mounting plate 121, a gap is formed between an outer wall of the second internal box 113 and an inner wall of the second cover 122, and a lower surface of an outer side of the second internal box 113 is fixedly connected to an upper surface of the second mounting plate 121.
Through the above embodiment of this embodiment, the second mounting plate 121 and the second steel plate are welded or fastened by using bolts, the second cover 122 and the mounting plate are clamped or bonded, and when the brittle concrete 126 extrudes the second cover 122, the second cover 122 is separated from the second mounting plate 121, so that the second mounting plate 121 is prevented from being displaced or inclined or twisted, and the second inner box 113 is prevented from being displaced or inclined or twisted due to being extruded by the brittle concrete 126.
In some embodiments of the present embodiment, the second mounting plate 121 is made of a hard metal material, and the second cover 122 is made of a plastic material.
Through the above embodiment of this embodiment, when the brittle concrete 126 extrudes the second cover 122, the second cover 122 can deform, so as to avoid displacement, inclination or torsion of the second inner box 113 caused by the extrusion of the brittle concrete 126, reduce the interference on the position measurement of the second ball 115, and improve the measurement accuracy.
As shown in fig. 2 to 8, in some embodiments of the present embodiment, the first outer box 109 is a solid of revolution, and the central axis of revolution of the first outer box 109 and the first central axis of revolution 107 are located on the same vertical line; the second outer box 120 is a revolving body, and the central axis of revolution of the second outer box 120 and the second central axis of revolution 118 are located on the same vertical line.
In some embodiments of the present embodiment, the first center axis of gyration 107 and the second center axis of gyration 118 are located on a same vertical line.
As shown in fig. 2 to 10 (the horizontal broken line in fig. 10 represents the horizontal plane), according to the above-described embodiment of the present embodiment, the inclination degree and the torsion degree of the upper end and the lower end of the foundation pile are obtained by measuring the coordinate values of the first ball 104 and the second ball 115 after rolling, respectively, for example, when the inclination angle of the upper end of the foundation pile is P1, the torsion angle of the upper end of the foundation pile is Q1, the inclination angle of the lower end of the foundation pile is P2, and the torsion angle of the lower end of the foundation pile is Q2, the average value of the inclination angle of the upper end of the foundation pile and the inclination angle of the lower end of the foundation pile is taken as the inclination angle P0 of the entire foundation pile, and the average value of the torsion angle of the upper end of the foundation pile and the torsion angle of the lower end of the foundation pile is taken as the torsion angle Q0 of the entire foundation pile, that is: p0= (P1 + P2)/2, Q0= (Q1 + Q2)/2, typically, P1 > P2, Q1 > Q2. The static balance performance of the foundation pile is judged through the measured integral inclination angle and torsion angle of the foundation pile, the crane lifts articles 131 with different weights corresponding to different static balance parameters (P0 and Q0), a static balance line graph of the foundation pile is drawn according to a plurality of actually measured P0 and Q0, the influence of lifting the articles 131 with corresponding weights on the static balance state of the foundation pile can be pre-judged in advance according to the static balance line graph of the foundation pile, and therefore the position of the balancing weight 129 is adaptively adjusted, the foundation pile is kept in an original static balance state, and the damage of bending, torsion or stretching (large tensile stress is generated on the local part of the steel reinforcement cage 125 during bending) caused on the foundation pile is reduced.
In the description of the embodiments of the present application, it should be noted that reference to the description of the terms "above-described embodiment," "some embodiments," "above-described implementation," "some implementations," "possible embodiments" or "possible implementations" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
In the description of the embodiments of the present application, it should be noted that the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present application can be understood as specific cases by those of ordinary skill in the art.
In the description of the embodiments of the present application, it should be noted that the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. The features defined as "first" and "second" may explicitly or implicitly include one or more of the features. "plurality" means two or more unless otherwise specified.
In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description of the embodiments of the present application and to simplify the description, but 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 be changed accordingly depending on the orientation in which the structure is placed, and thus should not be construed as limiting the embodiments of the present application. Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or indirectly contacting the second feature through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
The above examples are only illustrative and not restrictive, and those skilled in the art can modify the embodiments of the present application as required after reading the present specification without any inventive contribution, but all of them are protected by patent laws within the scope of the claims of the present application.
Claims (7)
1. The static balance testing device of the crane foundation pile is characterized by comprising a first static balance measuring component (101), wherein the first static balance measuring component (101) comprises a first inner box body (102), a first image acquisition device (103) and a first ball (104), the first inner box body (102) is a rotary body, the rotary central axis of the first inner box body (102) is vertically arranged, the inner wall of the first inner box body (102) comprises a first mounting surface (105) and a first measuring surface (106), the first mounting surface (105) is positioned on the top surface of the inner side of the first inner box body (102), the first measuring surface (106) is positioned on the bottom surface of the inner side of the first inner box body (102), the first installation surface (105) is horizontally arranged, the first measurement surface (106) is spherical, the first measurement surface (106) is arranged in a downward concave manner, the center of the first measurement surface (106) is located on a first rotary central axis (107) of the first inner box body (102), the first ball (104) is placed on the first measurement surface (106), the first ball (104) is connected with the first measurement surface (106) in a rolling manner, the first image acquisition device (103) is located on the first rotary central axis (107), a first polar coordinate system (108) is arranged on the first measurement surface (106), and an origin O1 of the first polar coordinate system (108) is located on the first rotary central axis (107), (b) and (c) 107 -said first image acquisition means (103) are adapted to acquire coordinate values of said ball in said first polar coordinate system (108);
the first static balance measuring assembly (101) further comprises a first outer box body (109), the first inner box body (102) is located inside the first outer box body (109), the upper surface of the outer side of the first inner box body (102) is fixedly connected with the upper surface of the inner side of the first outer box body (109), a gap is formed between the side surface of the outer side of the first inner box body (102) and the side surface of the inner side of the first outer box body (109), a gap is formed between the lower surface of the outer side of the first inner box body (102) and the lower surface of the inner side of the first outer box body (109), and the upper surface of the outer side of the first outer box body (109) is horizontally arranged;
the static balance testing device of the crane foundation pile further comprises a second static balance measuring assembly (112), the second static balance measuring assembly (112) comprises a second inner box body (113), a second image acquisition device (114) and a second ball (115), the second inner box body (113) is a rotary body, a central axis of rotation of the second inner box body (113) is vertically arranged, the inner wall of the second inner box body (113) comprises a second mounting surface (116) and a second measuring surface (117), the second mounting surface (116) is positioned on the top surface of the inner side of the second inner box body (113), the second measuring surface (117) is positioned on the bottom surface of the inner side of the second inner box body (113), the second mounting surface (116) is horizontally arranged, the second measuring surface (117) is spherical, the second measuring surface (117) is arranged in a concave manner, the center of the second measuring surface (117) is positioned on the second central axis of rotation (118) of the second inner box body (113), the second ball (115) is positioned on the second central axis of rotation (118), the second ball (115) is positioned on the second polar surface (119), and the second ball (119) is positioned on the polar coordinate system (118), the second central axis of rotation (119), the polar coordinate system (119), the second ball (119) is positioned on the polar plane (119), the polar plane (118), the polar plane (119), and the polar plane (118), the second image acquisition device (114) is suitable for acquiring coordinate values of the ball on the second polar coordinate system (119);
fixing a first static balance measurement component (101) at the central position of the lower surface of an upper steel plate (123), after concrete (126) is solidified, keeping a relative static state between the first static balance measurement component (101) and a foundation pile, driving the first static balance measurement component (101) to incline when the foundation pile inclines, rolling a first ball (104) towards the lowest position M1 of a first measurement surface (106) under the action of gravity, wherein the position of M1 adopts the central point of the first ball (104) in a picture;
the computer (134) reads the pictures acquired by the first image acquisition device (103), the coordinate values (rho 1, theta 1) of the point M1 are measured through a manual computer, or the coordinate values (rho 1, theta 1) of the point M1 are automatically calculated through software, the inclination degree of the upper end of the foundation pile can be judged through the coordinate values of the point M1, the larger rho 1 is, the larger the inclination degree of the upper end of the foundation pile is, a certain torsion acting force can be generated on the foundation pile when the upright column is inclined or bent, and when the upper end of the foundation pile is twisted, the first ball (104) can roll around the original point O1, namely the larger theta 1 is, the larger the torsion degree of the upper end of the foundation pile is;
fixing a second static balance measuring component (112) at the central position of the upper surface of a lower steel plate (124), after concrete (126) is solidified, keeping a relative static state between the second static balance measuring component (112) and a foundation pile, driving the second static balance measuring component (112) to incline when the foundation pile inclines, rolling a second ball (115) to the lowest position M2 of a second measuring surface (117) under the action of gravity, wherein the position of M2 adopts the central point of the second ball (115) in a picture;
the computer (134) reads the pictures collected by the second image collecting device (114), the coordinate values (rho 2 and theta 2) of the point M2 are measured through a manual operation computer, or the coordinate values (rho 2 and theta 2) of the point M2 are automatically calculated through software, the inclination degree of the upper end of the foundation pile can be judged through the coordinate values of the point M2, the larger the rho 2 is, the larger the inclination degree of the lower end of the foundation pile is, a certain torsion acting force can be generated on the foundation pile when the upright post is inclined or bent, and the second ball (115) can roll around the original point O2 when the lower end of the foundation pile is twisted, namely the larger the theta 2 is, the larger the torsion degree of the lower end of the foundation pile is;
the first centre of gyration axis (107) and the second centre of gyration axis (118) are located on the same vertical line.
2. The apparatus for testing the static balance of a crane foundation pile according to claim 1, wherein the first outer box (109) comprises a first mounting plate (110) and a first cover (111), the first mounting plate (110) is horizontally disposed, an opening of the first cover (111) is upwardly disposed, the first mounting plate (110) is located inside the opening of the first cover (111), an edge of the opening of the first cover (111) is fixedly connected with an edge of the first mounting plate (110), the first inner box (102) is located between the first cover (111) and the first mounting plate (110), a gap is formed between an outer wall of the first inner box (102) and an inner wall of the first cover (111), and an upper surface of an outer side of the first inner box (102) is fixedly connected with a lower surface of the first mounting plate (110).
3. A static balance testing arrangement of a crane foundation pile according to claim 2, characterised in that the first mounting plate (110) is made of a hard metal material and the first cover (111) is made of a plastic material.
4. The static balance testing device of the crane foundation pile according to claim 3, wherein the second static balance measuring component (112) further comprises a second outer box (120), the second inner box (113) is located inside the second outer box (120), the lower surface of the outer side of the second inner box (113) is fixedly connected with the lower surface of the inner side of the second outer box (120), a gap is formed between the side surface of the outer side of the second inner box (113) and the side surface of the inner side of the second outer box (120), a gap is formed between the upper surface of the outer side of the second inner box (113) and the upper surface of the inner side of the second outer box (120), and the lower surface of the outer side of the second outer box (120) is horizontally arranged.
5. The apparatus for testing the static balance of a crane foundation pile according to claim 4, wherein the second outer box (120) comprises a second mounting plate (121) and a second cover (122), the second mounting plate (121) is horizontally disposed, an opening of the second cover (122) is disposed downward, the second mounting plate (121) is located inside the opening of the second cover (122), an edge of the opening of the second cover (122) is fixedly connected with an edge of the second mounting plate (121), the second inner box (113) is located between the second cover (122) and the second mounting plate (121), a gap is formed between an outer wall of the second inner box (113) and an inner wall of the second cover (122), and a lower surface of an outer side of the second inner box (113) is fixedly connected with an upper surface of the second mounting plate (121).
6. The static balance testing arrangement of a crane footing according to claim 5 wherein the second mounting plate (121) is made of a hard metal material and the second cover (122) is made of a plastic material.
7. The static balance testing device of the crane foundation pile according to claim 6, wherein the first outer case (109) is a solid of revolution, and a center axis of revolution of the first outer case (109) is located on the same vertical line as the first center axis of revolution (107); the second outer box body (120) is a revolving body, and the revolving central axis of the second outer box body (120) and the second revolving central axis (118) are located on the same vertical line.
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