CN111964692A - High-resolution triaxial test simulation equipment based on tandem type combination transmission - Google Patents
High-resolution triaxial test simulation equipment based on tandem type combination transmission Download PDFInfo
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- CN111964692A CN111964692A CN202010693572.8A CN202010693572A CN111964692A CN 111964692 A CN111964692 A CN 111964692A CN 202010693572 A CN202010693572 A CN 202010693572A CN 111964692 A CN111964692 A CN 111964692A
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- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
Abstract
The invention discloses a high-resolution triaxial test simulation device based on tandem type combination transmission, which comprises: the device comprises a base, a middle frame, an outer frame, a load mounting table top, an inner shaft system structure, a middle shaft system structure, an outer shaft system structure, an inner shaft system structure, a middle shaft system structure and an outer frame combined transmission assembly; the load mounting table-board is connected with the middle frame through an inner shafting structure, and the inner frame combined transmission assembly is meshed with the inner shafting structure; the middle frame is connected with the outer frame through a middle shafting structure; the middle frame combined transmission assembly is meshed with the middle shaft system structure; the outer frame is connected with the base through an outer shafting structure; the outer frame combined transmission component is meshed with the outer shaft structure. The invention can eliminate the interference caused by electromagnetism and jitter, three rotating shafts of the triaxial test simulation equipment can rotate and lock at any angle, and the tandem type combined transmission can provide higher angular position resolution, ensure the angular position resolution with high precision, and create good and stable environment for calibrating and separating error parameters of the inertia measurement equipment.
Description
Technical Field
The invention belongs to the technical field of test simulation rotary tables, and particularly relates to high-resolution triaxial test simulation equipment based on tandem type combined transmission.
Background
With the continuous upgrading and development of inertia components, the requirements on test equipment for debugging, checking and calibration are more and more strict. The inertia test equipment is used as a precision test instrument for parameters such as angular velocity and acceleration of a carrier, and error parameter calibration of 3 degrees of freedom in space is required to be completed in order to obtain accurate navigation parameters. However, the traditional three-axis turntable adopts electric control and other modes, and is easy to generate electromagnetic interference on the measurement of inertia products. Meanwhile, after the three-axis electric turntable is locked, a slight shaking phenomenon occurs, so that the measurement precision is deviated. Due to size limitation, the transmission ratio of the conventional manual turntable cannot be excessively increased, and the resolution ratio of an actual angular position is not large enough, so that the measurement precision is not high enough, and the actual measurement requirement is difficult to meet.
Disclosure of Invention
The technical problem of the invention is solved: the defects of the prior art are overcome, the high-resolution triaxial test simulation equipment based on the tandem type combination transmission is provided, the interference caused by electromagnetism and jitter can be eliminated, three rotating shafts of the triaxial test simulation equipment can rotate and be locked at any angle, the tandem type combination transmission can provide high angular position resolution, high-precision angular position resolution is ensured, and a good and stable environment is created for calibrating and separating error parameters of inertial measurement equipment.
In order to solve the technical problem, the invention discloses a high-resolution triaxial test simulation device based on serial combined transmission, which comprises: the device comprises a base, a middle frame, an outer frame, a load mounting table top, an inner shafting structure, a middle shafting structure, an outer shafting structure, an inner frame combined transmission assembly, a middle frame combined transmission assembly and an outer frame combined transmission assembly;
the load mounting table-board is connected with the middle frame through an inner shafting structure; the inner frame combined transmission assembly is fixedly arranged through the middle frame and is meshed with the inner shaft system structure; the inner frame combined transmission assembly is used for controlling the rotation of the inner shafting structure so as to realize the rotation between the load mounting table top and the middle frame;
the middle frame is connected with the outer frame through a middle shafting structure; the middle frame combined transmission assembly is fixedly arranged through an outer frame and is meshed with the middle shafting structure; the middle frame combined transmission assembly is used for controlling the rotation of the middle shafting structure so as to realize the rotation between the middle frame and the outer frame;
the outer frame is connected with the base through an outer shafting structure; the outer frame combined transmission component is fixedly installed through the base and is meshed with the outer shaft structure; the outer frame combined transmission assembly is used for controlling the rotation of the outer shaft system structure so as to realize the rotation between the outer frame and the base.
In the above tandem type combination drive-based high-resolution triaxial test simulation device, the internal shaft structure includes: the inner shaft bearing, the inner shaft, the inner frame worm wheel and the angle encoder are arranged on the inner shaft;
the inner shaft bearing, the inner frame worm wheel and the angle encoder are all arranged on the inner shaft; the inner shaft bearing is positioned at the upper part of the inner shaft, the angle encoder is positioned in the middle of the inner shaft, and the inner frame worm wheel is positioned at the lower part of the inner shaft;
the inner shaft bearing provides support for the rotation of the inner shaft;
the load mounting table is mounted at the upper end of the inner shaft, and the rotation of the inner shaft drives the load mounting table to rotate, so that a load product placed on the load mounting table is driven to rotate.
In the above tandem type combination transmission-based high resolution triaxial test simulation device, the inner frame combination transmission assembly comprises: the inner frame planetary gear reducer, the inner frame worm bearing, the inner frame worm bearing seat and the inner frame hand wheel;
the inner frame worm bearing is arranged on the inner frame worm, and the inner frame worm is connected with the inner frame worm bearing seat through the inner frame worm bearing;
the output end of the inner frame planetary gear reducer is connected with the input end of the inner frame worm;
the inner frame hand wheel is connected with the input end of the inner frame planetary gear reducer;
the inner frame worm is meshed with the inner frame worm wheel, so that meshing transmission can be realized;
the torque is transmitted to the inner frame planetary gear reducer and the inner frame worm in series, and then transmitted to the inner frame worm wheel, so that the inner shaft and the load mounting table are driven to rotate.
In the above-mentioned high resolution triaxial test simulation equipment based on serial combined transmission, the shafting structure includes: the device comprises a right middle shaft bearing, a right middle shaft, a left middle shaft bearing, a left middle shaft, a middle frame worm gear and an angle encoder;
the middle frame worm wheel is arranged on the right end face of the right middle shaft, and the angle encoder is arranged on the left end face of the left middle shaft;
the right middle shaft bearing is arranged in the middle of the right middle shaft;
the left middle shaft bearing is arranged in the middle of the left middle shaft.
In the above tandem type combination drive-based high resolution triaxial test simulation device, the middle frame combination drive assembly comprises: the middle frame worm gear reducer is arranged on the middle frame worm bearing;
the middle frame worm bearing is arranged on the middle frame worm, and the middle frame worm is connected with the middle frame worm bearing seat through the middle frame worm bearing;
the output end of the middle frame planetary gear reducer is connected with the input end of the middle frame worm;
the middle frame hand wheel is connected with the input end of the middle frame planetary gear reducer;
the middle frame worm wheel and the middle frame worm are meshed to realize meshing transmission;
the rotation of the middle frame hand wheel realizes the input of torque, and the torque is transmitted to the middle frame planetary gear reducer and the middle frame worm in series and then transmitted to the middle frame worm wheel, so as to drive the right middle shaft, the left middle shaft and the middle frame to rotate.
In the above tandem type combination drive-based high-resolution triaxial test simulation apparatus, the external shaft architecture includes: the device comprises an outer shaft bearing, a fixed shaft, a movable shaft, an outer frame worm wheel and an angle encoder;
the dead axle fixed mounting is on the base, and moving axis fixed mounting is on outer frame, and outer axle bearing connection supports dead axle and moving axis, and the frame worm wheel is installed on the shaft shoulder of moving axis, and angle encoder is connected with dead axle and moving axis respectively.
In the above tandem type combination drive-based high resolution triaxial test simulation device, the outer frame combination drive assembly includes: the outer frame worm gear reducer is connected with the outer frame worm bearing, the outer frame worm bearing seat, the outer frame worm and the outer frame hand wheel;
the outer frame worm bearing is arranged on the outer frame worm, and the outer frame worm bearing seat is connected with the outer frame worm through the outer frame worm bearing;
the output end of the outer frame planetary gear reducer is connected with the input end of the outer frame worm;
the outer frame hand wheel is connected with the input end of the outer frame planetary gear reducer;
the outer frame worm wheel is meshed with the outer frame worm, so that meshing transmission can be realized;
the torque is transmitted to the outer frame planetary gear reducer and the outer frame worm in series, and then transmitted to the outer frame worm wheel, so that the moving shaft and the outer frame are driven to rotate.
In the high-resolution triaxial test simulation device based on tandem type combination transmission, the device further comprises: a digital display system;
the digital display system is arranged on the upper surface of the base and is respectively connected with the angle encoder under the inner shafting structure, the angle encoder under the middle shafting structure and the angle encoder under the outer shafting structure through cables so as to display the angular position information of the inner, middle and outer shafts in real time.
In the above-mentioned high-resolution triaxial test simulation apparatus based on tandem type combination drive,
an angular encoder for detecting angular position information of the inner shaft;
the angle encoder is used for detecting angular position information of the right middle axle;
and the angle encoder is used for detecting the angular position information of the moving shaft.
In the above-mentioned high-resolution triaxial test simulation apparatus based on tandem type combination drive,
the middle frame is of a U-shaped structure, and the inner shaft system structure is vertically arranged on the middle frame and used for connecting the middle frame with the load mounting table top;
the outer frame is of a U-shaped structure, and the middle shaft system structure is horizontally arranged on the outer frame and used for connecting the outer frame and the middle frame;
the outer shafting structure is vertically arranged on the base and used for connecting the base and the outer frame.
The invention has the following advantages:
(1) the invention discloses high-resolution triaxial test simulation equipment based on tandem type combination transmission, which can realize the rolling, pitching and yawing motions of three axial angles in space. The test simulation equipment has the advantages that the combined type large transmission ratio greatly improves the angular position resolution of the manual triaxial test simulation equipment. Namely, the magnetic-free.
(2) The invention discloses high-resolution triaxial test simulation equipment based on tandem type combination transmission, which eliminates interference caused by electromagnetism and motor shaking, avoids the phenomenon of slight shaking after a triaxial electric turntable is locked to cause deviation of measurement precision, and creates a good and stable environment for calibrating and separating error parameters of inertia products.
(3) The invention discloses high-resolution triaxial test simulation equipment based on tandem type combination transmission, which adopts a modular design and has good maintainability, reliability and expansibility.
Drawings
FIG. 1 is a schematic perspective view of a tandem type combination drive-based high-resolution triaxial test simulation device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a front view structure of a high-resolution triaxial test simulation device based on tandem type combination transmission according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a right-view structure of a tandem-type combination-drive-based high-resolution triaxial test simulation device in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The invention discloses high-resolution triaxial test simulation equipment based on serial combined transmission, which adopts the combined transmission of a worm gear and a planetary gear reducer, realizes the transmission of the input and output in the direction of crossing 90 degrees in a mode of performing serial combination on the transmission of a primary planetary gear reducer and the transmission of a secondary worm gear, and has a stroke self-locking function, so that the triaxial test simulation equipment has a large transmission ratio and higher resolution. Meanwhile, the problem of unstable precision caused by electromagnetic disturbance and jitter of the electric three-axis turntable is solved, and high-precision measurement of inertial product loads in a non-magnetic environment is realized.
Referring to fig. 1 to 3, in the present embodiment, the tandem combination drive-based high-resolution triaxial test simulation apparatus includes: the device comprises a base 1, a middle frame 2, an outer frame 3, a load mounting table top 4, an inner shaft system structure 36, a middle shaft system structure 37, an outer shaft system structure 38, an inner frame combined transmission assembly 39, a middle frame combined transmission assembly 40 and an outer frame combined transmission assembly 41. Wherein, the load mounting table top 4 is connected with the middle frame 2 through an inner shafting structure 36; the inner frame combined transmission assembly 39 is fixedly arranged through the middle frame 2 and is meshed with the inner shafting structure 36; the inner frame combined transmission assembly 39 is used for controlling the rotation of the inner shafting structure 36, so as to realize the rotation between the load mounting table top 4 and the middle frame 2. The middle frame 2 is connected with the outer frame 3 through a middle shafting structure 37; the middle frame combined transmission assembly 40 is fixedly installed through the outer frame 3 and is meshed with the middle shafting structure 37; the middle frame assembly transmission assembly 40 is used for controlling the rotation of the middle shaft system structure 37, so as to realize the rotation between the middle frame 2 and the outer frame 3. The outer frame 3 is connected with the base 1 through an outer shafting structure 38; the outer frame combined transmission assembly 41 is fixedly installed through the base 1 and is meshed with the outer shaft system structure 38; the outer frame assembly transmission assembly 41 is used for controlling the rotation of the outer shafting structure 38, so as to realize the rotation between the outer frame 3 and the base 1.
In this embodiment, the triaxial test simulation device is in a vertical U-T structure, the outer axis structure is perpendicular to the horizontal plane and perpendicular to the central axis structure, and the load mounting table is perpendicular to the inner axis structure for load mounting. The inner shafting structure is T-shaped and is supported and connected on the middle frame through an inner shaft bearing. The middle frame is U-shaped, and the middle shafting structure is supported and connected to the outer frame through a left middle shaft bearing and a right middle shaft bearing. The outer frame is U-shaped, and the outer axle system structure is connected on the base through outer axle bearing, moving axis, dead axle. In conclusion, the universal frame assembly with three rotational degrees of freedom of the inner, the middle and the outer is formed, and the degrees of freedom of the load in three directions of rolling, pitching and yawing in space can be respectively realized.
Furthermore, an independent worm gear and worm and planetary gear reducer combined transmission system is respectively associated with the inner shafting structure, the middle shafting structure and the outer shafting structure. Meanwhile, the inner shafting structure, the middle shafting structure and the outer shafting structure are respectively provided with an angle encoder (an angle encoder 9 for detecting the angular position information of the inner shaft 7, an angle encoder 15 for detecting the angular position information of the right middle shaft 11 and an angle encoder 20 for detecting the angular position information of the moving shaft 18), the angular information of the inner shaft, the middle shaft and the outer shaft is collected in real time, and the output data can directly display the rotation angle information of each frame on a digital display system arranged on the base.
In a preferred embodiment of the present invention, the inner shaft structure 36 may specifically include: an inner shaft bearing 6, an inner shaft 7, an inner frame worm wheel 8 and an angle encoder 9. The inner shaft bearing 6, the inner frame worm wheel 8 and the angle encoder 9 are all arranged on the inner shaft 7; the inner shaft bearing 6 is positioned at the upper part of the inner shaft 7, the angle encoder 9 is positioned in the middle of the inner shaft 7, and the inner frame worm wheel 8 is positioned at the lower part of the inner shaft 7; the inner shaft bearing 6 provides support for the rotation of the inner shaft 7; the load mounting table-board 4 is mounted at the upper end of the inner shaft 7, the rotation of the inner shaft 7 drives the load mounting table-board 4 to rotate, and then drives the load product placed on the load mounting table-board 4 to rotate.
Preferably, the inner frame combination transmission assembly 39 may specifically include: an inner frame planetary gear reducer 21, an inner frame worm bearing 22, an inner frame worm 23, an inner frame worm bearing seat 24 and an inner frame hand wheel 25. The inner frame worm bearing 22 is arranged on the inner frame worm 23, and the inner frame worm 23 is connected with the inner frame worm bearing seat 24 through the inner frame worm bearing 22; the output end of the inner frame planetary gear reducer 21 is connected with the input end of an inner frame worm 23; the inner frame hand wheel 25 is connected with the input end of the inner frame planetary gear reducer 21; the inner frame worm 23 is meshed with the inner frame worm wheel 8, so that meshing transmission can be realized; the rotation of the inner frame hand wheel 25 realizes the input of torque, and the torque is transmitted to the inner frame planetary gear reducer 21 and the inner frame worm 23 in series and then transmitted to the inner frame worm wheel 8, so as to drive the inner shaft 7 and the load mounting table top 4 to rotate.
In a preferred embodiment of the present invention, the shafting structure 37 may specifically include: the device comprises a right middle shaft bearing 10, a right middle shaft 11, a left middle shaft bearing 12, a left middle shaft 13, a middle frame worm wheel 14 and an angle encoder 15. Wherein, the middle frame worm wheel 14 is arranged on the right end surface of the right middle shaft 11, and the angle encoder 15 is arranged on the left end surface of the left middle shaft 13; a right middle shaft bearing 10 is arranged in the middle of a right middle shaft 11; the left middle shaft bearing 12 is installed in the middle of the left middle shaft 13.
Preferably, the middle frame assembly transmission assembly 40 may specifically include: a middle frame planetary gear reducer 26, a middle frame worm bearing 27, a middle frame worm 28, a middle frame worm bearing block 29 and a middle frame hand wheel 30. The middle frame worm bearing 27 is mounted on the middle frame worm 28, and the middle frame worm 28 is connected with the middle frame worm bearing block 29 through the middle frame worm bearing 27; the output end of the middle frame planetary gear reducer 26 is connected with the input end of a middle frame worm 28; the middle frame hand wheel 30 is connected with the input end of the middle frame planetary gear reducer 26; the middle frame worm wheel 14 and the middle frame worm 28 are meshed to realize meshing transmission; the rotation of the middle frame hand wheel 30 realizes the input of torque, and the torque is transmitted to the middle frame planetary gear reducer 26 and the middle frame worm 28 in series and then transmitted to the middle frame worm wheel 14, so as to drive the right middle shaft 11, the left middle shaft 13 and the middle frame 2 to rotate.
In a preferred embodiment of the present invention, the outer shaft structure 38 may specifically include: outer shaft bearing 16, dead axle 17, moving axis 18, outer frame worm wheel 19 and angle encoder 20. Wherein, dead axle 17 fixed mounting is on base 1, and moving axis 18 fixed mounting is on outer frame 3, and outer axle bearing 16 connects and supports dead axle 17 and moving axis 18, and outer frame worm wheel 19 is installed on the shaft shoulder of moving axis 18, and angle encoder 20 is connected with dead axle 17 and moving axis 18 respectively.
Preferably, the outer frame combination transmission assembly 41 may specifically include: the outer frame planetary gear reducer 31, the outer frame worm bearing 32, the outer frame worm bearing seat 33, the outer frame worm 34 and the outer frame hand wheel 35. The outer frame worm bearing 32 is arranged on the outer frame worm 34, and the outer frame worm bearing block 33 is connected with the outer frame worm 34 through the outer frame worm bearing 32; the output end of the outer frame planetary gear reducer 31 is connected with the input end of an outer frame worm 34; the outer frame hand wheel 35 is connected with the input end of the outer frame planetary gear reducer 31; the outer frame worm wheel 19 is meshed with the outer frame worm 34, so that meshing transmission can be realized; the rotation of the outer frame hand wheel 35 realizes the input of the torque, and the torque is transmitted to the outer frame planetary gear reducer 31 and the outer frame worm 34 in series, and then transmitted to the outer frame worm wheel 19, so as to drive the moving shaft 18 and the outer frame 3 to rotate.
In a preferred embodiment of the present invention, the high resolution triaxial test simulation apparatus based on tandem type combination drive may further include: and a digital display system 5. The digital display system 5 is installed on the upper surface of the base 1 and is respectively connected with the angle encoder 9 under the inner shafting structure 36, the angle encoder 15 under the middle shafting structure 37 and the angle encoder 20 under the outer shafting structure 38 through cables so as to display the angular position information of the inner, middle and outer shafts in real time.
In this embodiment, it should be noted that:
(1) the base can be processed by cast iron materials, and reinforcing ribs can be reasonably distributed in the cavity of the base. The cast iron has the advantages of high rigidity and strength, convenient processing and mature casting and heat treatment process, and is beneficial to maintaining the stability of the integral structure of the triaxial test simulation equipment.
(2) The middle frame can adopt a U-shaped closed cavity type thin-wall structure form, and reinforcing ribs can be reasonably distributed in the cavity of the middle frame. The middle frame can be made of cast aluminum alloy materials, has excellent mechanical and cutting performances, and can stabilize the structure and eliminate the stress through temperature cycle treatment. The outer frame can adopt a U-shaped closed cavity type thin-wall structure form, and reinforcing ribs can be reasonably distributed in the cavity of the outer frame. The outer frame can be made of cast aluminum alloy materials, has excellent mechanical and cutting performances, and can stabilize the structure and eliminate the stress through temperature cycle treatment.
(3) The load mounting table-board can be obtained by adopting the price of aluminum alloy materials and is a thin-wall disc surface. The table top of the load mounting table top can be provided with concentric-circle uniformly-distributed ray-shaped M8 threaded holes for universal fastening mounting of different load products.
(4) The inner shaft system structure can comprise an inner shaft bearing, an inner shaft, an inner frame worm gear and an angle encoder, wherein the inner shaft bearing is used for realizing rolling rotation of the load mounting table. The precise inner shaft bearing provides support for the rotation of the inner shaft, the inner frame worm gear provides driving force for the rolling motion of the inner shaft and the load mounting table board, and the angle encoder detects the angular position information of the inner shaft and outputs the information to the digital display system, so that the real-time monitoring and feedback adjustment of the angular position of the inner shaft are realized. The middle shafting structure can comprise a right middle shaft bearing, a right middle shaft, a left middle shaft bearing, a left middle shaft, a middle frame worm gear and an angle encoder for realizing the pitching rotation of the middle frame. The precise right middle shaft bearing and the precise left middle shaft bearing provide support for the rotation of the middle shaft, the middle frame worm gear provides driving force for the pitching motion of the middle frame, and the angle encoder detects the angular position information of the middle shaft and outputs the information to the digital display system, so that the real-time monitoring and feedback adjustment of the angular position of the middle shaft are realized. The outer shaft structure can comprise an outer shaft bearing for realizing the yaw rotation of the outer frame, a fixed shaft, a movable shaft, an outer frame worm gear and an angle encoder. The accurate outer shaft bearing provides the support for the moving axis is rotatory, and the frame worm wheel provides drive power for the yawing motion of outer frame, and the angular encoder detects the angular position information of moving axis and exports digital display system, realizes moving axis angular position's real-time supervision and feedback control.
(5) The inner frame combined transmission assembly can comprise an inner frame planetary gear reducer, an inner frame worm bearing, an inner frame worm bearing seat and an inner frame hand wheel. The input torque is transmitted to the inner frame planetary gear reducer, the inner frame worm and the inner frame worm wheel in series through the inner frame hand wheel so as to drive the inner shafting and the load mounting table to rotate. The middle frame combined transmission assembly can comprise a middle frame planetary gear reducer, a middle frame worm bearing, a middle frame worm bearing seat and a middle frame hand wheel. The input torque is transmitted to the middle frame planetary gear reducer, the middle frame worm and the middle frame worm wheel in series through the middle frame hand wheel, and then the middle shafting and the middle frame are driven to rotate. The outer frame combined transmission assembly can comprise an outer frame planetary gear reducer, an outer frame worm bearing, an outer frame worm bearing seat and an outer frame hand wheel. The input torque is transmitted to the precise outer frame planetary gear reducer, the outer frame worm and the outer frame worm wheel in series through the outer frame hand wheel, and then the outer shaft system and the outer frame are driven to rotate.
(6) The digital display system can be an integrated digital display device, the angle position information of three axes of the test simulation equipment adopts a digital display mode, the display screen is arranged on one side of the outer frame, all the operation switches are arranged on the same panel, and the angle positions of the three axes are displayed on the display screen in real time to help an operator to execute positioning operation.
In summary, in this embodiment, the operation principle of the high-resolution triaxial test simulation device based on the tandem type combination transmission is as follows: the hand wheel is used as a torque input end of a triaxial, and realizes the large transmission ratio speed reduction and high-precision angular position resolution of the inner shaft, the middle shaft and the outer shaft through the combined transmission of the series connection of the first-stage precision planetary gear reducer and the second-stage worm gear, thereby realizing the angular motion in three directions of rolling, pitching and yawing. Meanwhile, the angular encoders of the three shafts transmit angular position information of the inner shaft, the middle shaft and the outer shaft to the digital display system in real time, and the angular position information is displayed on a screen and used for assisting an operator in judging the angular position information of the three shafts.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make variations and modifications of the present invention without departing from the spirit and scope of the present invention by using the methods and technical contents disclosed above.
Those skilled in the art will appreciate that the invention may be practiced without these specific details.
Claims (10)
1. A high-resolution triaxial test simulation device based on tandem type combination transmission is characterized by comprising: the device comprises a base (1), a middle frame (2), an outer frame (3), a load mounting table top (4), an inner shafting structure (36), a middle shafting structure (37), an outer shafting structure (38), an inner frame combined transmission component (39), a middle frame combined transmission component (40) and an outer frame combined transmission component (41);
the load mounting table top (4) is connected with the middle frame (2) through an inner shafting structure (36); the inner frame combined transmission assembly (39) is fixedly arranged through the middle frame (2) and is meshed with the inner shafting structure (36); the inner frame combined transmission assembly (39) is used for controlling the rotation of the inner shafting structure (36) so as to realize the rotation between the load mounting table top (4) and the middle frame (2);
the middle frame (2) is connected with the outer frame (3) through a middle shafting structure (37); the middle frame combined transmission assembly (40) is fixedly installed through the outer frame (3) and is meshed with the middle shaft system structure (37); the middle frame combined transmission assembly (40) is used for controlling the rotation of the middle shafting structure (37) so as to realize the rotation between the middle frame (2) and the outer frame (3);
the outer frame (3) is connected with the base (1) through an outer shafting structure (38); the outer frame combined transmission assembly (41) is fixedly installed through the base (1) and is meshed with the outer shaft system structure (38); the outer frame combined transmission assembly (41) is used for controlling the rotation of the outer shafting structure (38) so as to realize the rotation between the outer frame (3) and the base (1).
2. The tandem combination transmission-based high resolution triaxial test simulation apparatus of claim 1, wherein the inner shafting structure (36) comprises: an inner shaft bearing (6), an inner shaft (7), an inner frame worm wheel (8) and an angle encoder (9);
the inner shaft bearing (6), the inner frame worm wheel (8) and the angle encoder (9) are all arranged on the inner shaft (7); the inner shaft bearing (6) is positioned at the upper part of the inner shaft (7), the angle encoder (9) is positioned at the middle part of the inner shaft (7), and the inner frame worm wheel (8) is positioned at the lower part of the inner shaft (7);
the inner shaft bearing (6) provides support for the rotation of the inner shaft (7);
the load mounting table board (4) is mounted at the upper end of the inner shaft (7), the rotation of the inner shaft (7) drives the load mounting table board (4) to rotate, and then the load product placed on the load mounting table board (4) is driven to rotate.
3. The tandem combination drive based high resolution triaxial test simulation apparatus of claim 2, wherein the inner frame combination drive assembly (39) comprises: an inner frame planetary gear reducer (21), an inner frame worm bearing (22), an inner frame worm (23), an inner frame worm bearing seat (24) and an inner frame hand wheel (25);
the inner frame worm bearing (22) is arranged on the inner frame worm (23), and the inner frame worm (23) is connected with the inner frame worm bearing seat (24) through the inner frame worm bearing (22);
the output end of the inner frame planetary gear reducer (21) is connected with the input end of an inner frame worm (23);
the inner frame hand wheel (25) is connected with the input end of the inner frame planetary gear reducer (21);
the inner frame worm (23) is meshed with the inner frame worm wheel (8), so that meshing transmission can be realized;
the torque is input by rotation of the inner frame hand wheel (25), and is transmitted to the inner frame planetary gear reducer (21) and the inner frame worm (23) in a serial mode and then transmitted to the inner frame worm wheel (8), so that the inner shaft (7) and the load mounting table top (4) are driven to rotate.
4. The tandem-type combination-drive-based high-resolution triaxial test simulation apparatus according to claim 1, wherein the shafting structure (37) comprises: the device comprises a right middle shaft bearing (10), a right middle shaft (11), a left middle shaft bearing (12), a left middle shaft (13), a middle frame worm gear (14) and an angle encoder (15);
a middle frame worm wheel (14) is arranged on the right end face of the right middle shaft (11), and an angle encoder (15) is arranged on the left end face of the left middle shaft (13);
the right middle shaft bearing (10) is arranged in the middle of the right middle shaft (11);
the left middle shaft bearing (12) is arranged in the middle of the left middle shaft (13).
5. The tandem compound drive based high resolution tri-axial test simulation apparatus according to claim 4, wherein the middle frame compound drive assembly (40) comprises: the device comprises a middle frame planetary gear reducer (26), a middle frame worm bearing (27), a middle frame worm (28), a middle frame worm bearing block (29) and a middle frame hand wheel (30);
the middle frame worm bearing (27) is arranged on the middle frame worm (28), and the middle frame worm (28) is connected with the middle frame worm bearing seat (29) through the middle frame worm bearing (27);
the output end of the middle frame planetary gear reducer (26) is connected with the input end of a middle frame worm (28);
the middle frame hand wheel (30) is connected with the input end of the middle frame planetary gear reducer (26);
the middle frame worm wheel (14) and the middle frame worm (28) are meshed to realize meshing transmission;
the rotation of the middle frame hand wheel (30) realizes the input of torque, and the torque is transmitted to the middle frame planetary gear reducer (26) and the middle frame worm (28) in series and then transmitted to the middle frame worm wheel (14), so as to drive the right middle shaft (11), the left middle shaft (13) and the middle frame (2) to rotate.
6. The tandem combination transmission-based high resolution triaxial test simulation apparatus of claim 1, wherein the outer shafting structure (38) comprises: an outer shaft bearing (16), a dead axle (17), a moving axle (18), an outer frame worm wheel (19) and an angle encoder (20);
dead axle (17) fixed mounting is on base (1), moving axis (18) fixed mounting is on outer frame (3), outer shaft bearing (16) connection support dead axle (17) and moving axis (18), and outer frame worm wheel (19) are installed on the shaft shoulder of moving axis (18), and angle encoder (20) are connected with dead axle (17) and moving axis (18) respectively.
7. The tandem type combination transmission-based high-resolution triaxial test simulation apparatus according to claim 6, wherein the outer frame combination transmission assembly (41) comprises: the outer frame worm gear reducer comprises an outer frame planetary gear reducer (31), an outer frame worm bearing (32), an outer frame worm bearing seat (33), an outer frame worm (34) and an outer frame hand wheel (35);
the outer frame worm bearing (32) is arranged on the outer frame worm (34), and the outer frame worm bearing seat (33) is connected with the outer frame worm (34) through the outer frame worm bearing (32);
the output end of the outer frame planetary gear reducer (31) is connected with the input end of an outer frame worm (34);
the outer frame hand wheel (35) is connected with the input end of the outer frame planetary gear reducer (31);
the outer frame worm wheel (19) is meshed with the outer frame worm (34), so that meshing transmission can be realized;
the rotation of the outer frame hand wheel (35) realizes the input of torque, and the torque is transmitted to the outer frame planetary gear reducer (31) and the outer frame worm (34) in series and then transmitted to the outer frame worm wheel (19), so as to drive the moving shaft (18) and the outer frame (3) to rotate.
8. The tandem compound drive based high resolution tri-axial test simulation apparatus of claim 1, further comprising: a digital display system (5);
the digital display system (5) is arranged on the upper surface of the base (1) and is respectively connected with the angle encoder (9) under the inner shafting structure (36), the angle encoder (15) under the middle shafting structure (37) and the angle encoder (20) under the outer shafting structure (38) through cables so as to display the angular position information of the inner, middle and outer shafts in real time.
9. The tandem combination drive based high resolution tri-axial test simulation apparatus of claim 8,
an angular encoder (9) for detecting angular position information of the inner shaft (7);
an angle encoder (15) for detecting angular position information of the right middle axle (11);
and an angle encoder (20) for detecting angular position information of the moving shaft (18).
10. The tandem combination drive based high resolution tri-axial test simulation apparatus of claim 1,
the middle frame (2) is of a U-shaped structure, and the inner shafting structure (36) is vertically arranged on the middle frame (2) and used for connecting the middle frame (2) with the load mounting table top (4);
the outer frame (3) is of a U-shaped structure, and the middle shaft system structure (37) is horizontally arranged on the outer frame (3) and used for connecting the outer frame (3) and the middle frame (2);
the outer shafting structure (38) is vertically arranged on the base (1) and used for connecting the base (1) and the outer frame (3).
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