CN111694397A - Configurable modular turntable angle measurement and electrical limiting composite mechanism - Google Patents
Configurable modular turntable angle measurement and electrical limiting composite mechanism Download PDFInfo
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- CN111694397A CN111694397A CN202010577393.8A CN202010577393A CN111694397A CN 111694397 A CN111694397 A CN 111694397A CN 202010577393 A CN202010577393 A CN 202010577393A CN 111694397 A CN111694397 A CN 111694397A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
- G05G5/04—Stops for limiting movement of members, e.g. adjustable stop
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
The invention relates to the field of mechanical transmission, and discloses a configurable modular turntable angle measurement and electrical limiting composite mechanism which comprises an input gear, an input shaft, an angle measurement mechanism and an electrical limiting mechanism, wherein the input gear is meshed with a final output shaft gear of a turntable to transmit the rotation motion of the turntable to the input shaft, a shaft gear on the input shaft is respectively meshed with an angle measurement gear of the angle measurement mechanism and a limiting gear of the electrical limiting mechanism, and the angle measurement and the electrical limiting of the turntable are respectively realized through the angle measurement mechanism and the electrical limiting mechanism. The invention can be reasonably configured according to the structural layout requirement of the rotary table, simultaneously realizes the detection of the position and the speed of the final output shaft of the rotary table and the electric limit function of the limit angle position of the rotary table, and can adjust the electric limit angle range of the rotary table according to the requirement.
Description
Technical Field
The invention relates to the technical field of mechanical transmission, in particular to a configurable modular turntable angle measurement and electrical limiting composite mechanism.
Background
In the industries of communication, radar and the like, a reciprocating turntable bearing antenna feeder with a limit rotation angle range larger than 360 degrees, a front end and other equipment are needed for searching and tracking target signals.
In order to improve the searching and tracking precision, an angle measuring mechanism is required to be arranged on the rotary table to accurately measure the final rotating speed and position of the rotary table, and a servo control system is required to accurately control and compensate the movement of the rotary table according to the measured data.
The turntable mostly adopts software limiting, electrical limiting and mechanical limiting measures to ensure that system equipment is safe and reliable to use. Software spacing and electrical spacing all need set up the sensor on the revolving stage and carry out real-time supervision to revolving stage rotation data: the software limit controls the motion state of the turntable through servo system control software; the electric limit controls the motion state of the turntable through electric hardware of a servo system.
In general, the data measured by the angle measuring mechanism on the turntable is used for improving the operation precision of the turntable and implementing software limit, and the electrical limit function needs independent electrical hardware to implement.
In engineering applications, the functions of angle measurement and electrical limiting are usually implemented by using a separate structure: the angle measurement function is realized by mounting a coaxial sensor on the final output shaft of the rotary table to measure the speed and the position of the output shaft; the electric limiting function is realized by installing a sensor and a triggering mechanism on the last stage of the rotary table and a fixed component of the rotary table, triggering the sensor at the extreme corner position of the rotary table to generate an electric signal and feeding the electric signal back to the servo system through electric hardware of the servo system.
According to the search, the technical scheme of the configurable modular turntable angle measurement and electrical limiting composite mechanism is not found. For example:
the invention patent with publication number CN 108020247 a proposes a rotary table technical scheme for measuring angles and speeds of the final output shaft of the rotary table by an absolute encoder, but cannot realize the electrical limit function for the limit rotation angle range of the rotary table.
The electrical limiting schemes proposed by the patents with publication numbers CN 110630862A, CN101986404A/B, CN102354253B, CN207406723U, CN102566653A, CN105353774B and CN204650285U can realize the electrical limiting function of the turntable with the limited rotation angle range greater than or equal to 360 °, but have the following disadvantages:
the final output shaft of the rotary table cannot be subjected to angle measurement and speed measurement;
most of the rotary table can only occupy a certain specific position on the periphery of the final output shaft of the rotary table, and the rotary table cannot be configured;
the limit rotation angle range of the electric limit of the rotary table cannot be adjusted, and the electric limit accuracy and the application range are difficult to improve.
In engineering application, a connecting cable, an optical fiber and a liquid cooling pipeline often pass through the final output shaft of the rotary table, and the angle measurement scheme of coaxially mounting the sensor on the final output shaft of the rotary table is difficult to implement in engineering and cannot meet the requirement of electrical limiting.
Therefore, the industries of communication, radar and the like need a configurable modular turntable angle measurement and electrical limiting composite mechanism, and the final output shaft of the turntable is subjected to speed and position detection to improve the operation precision of the turntable; meanwhile, the electric limit corner range of the rotary table can be adjusted, the electric limit of the limit corner position of the rotary table is realized, and the use safety and reliability of the system are ensured.
Because the traditional angle measurement and electrical limiting functions usually adopt a separated structure, the requirements of adjustable angle measurement of a reciprocating turntable with a limit rotation angle range larger than 360 degrees and adjustable electrical limiting rotation angle range can not be met simultaneously, and the engineering implementation is difficult.
Disclosure of Invention
In order to solve the problems, the invention provides a configurable modular turntable angle measurement and electrical limiting composite mechanism, which can be applied to a reciprocating turntable with a limit rotation angle range larger than 360 degrees, can be reasonably configured according to the structural layout requirement of the turntable, can simultaneously realize the detection of the position and the speed of a final output shaft of the turntable and the electrical limiting function of the limit rotation angle position of the turntable, and can also adjust the electrical limit rotation angle range of the turntable according to the requirement.
The configurable modular turntable angle measurement and electrical limiting composite mechanism comprises an input gear, an input shaft, an angle measurement mechanism and an electrical limiting mechanism, wherein the input gear is meshed with a final output shaft gear of a turntable to transmit the rotation motion of the turntable to the input shaft, a shaft gear on the input shaft is respectively meshed with an angle measurement gear of the angle measurement mechanism and a limiting gear of the electrical limiting mechanism, and the angle measurement and the electrical limiting of the turntable are respectively realized through the angle measurement mechanism and the electrical limiting mechanism.
Furthermore, the angle measuring mechanism comprises an angle measuring gear, an angle measuring shaft, an elastic clamp external member and an angle measuring sensor, wherein the angle measuring gear is meshed with a shaft gear on the input shaft and transmits the motion of the final output shaft of the rotary table to the angle measuring shaft, the angle measuring shaft is connected with the shaft of the angle measuring sensor through the elastic clamp external member and transmits the running state of the rotary table to the angle measuring sensor, and the speed and the position of the final output shaft of the rotary table are measured.
Furthermore, the electric limiting mechanism comprises a first rotating angle range adjusting device and a second rotating angle range adjusting device, wherein the first rotating angle range adjusting device and the second rotating angle range adjusting device are axially overlapped, and continuous adjustment of forward and reverse limit rotating angle ranges of the rotary table is respectively realized.
Furthermore, the elastic jacket part comprises an outer jacket, a set screw, a cone nut and an elastic clamp, a shaft of the angle measuring sensor can extend into a central hole of the cone nut, the outer jacket is axially moved on the angle measuring sensor through screwing, so that the cone nut is deformed to clamp the shaft of the angle measuring sensor, and the shaft of the angle measuring sensor is fixed through the set screw; one end of the elastic clamp is mounted on the cone nut through a fastener, and the other end of the elastic clamp clamps the angle measuring shaft.
Furthermore, the shaft head of the angle measuring shaft clamped by the elastic clamp is a square flat shaft.
Furthermore, the angle measuring mechanism also comprises a spinning type fixing structure for fixing the angle measuring sensor; the spinning type fixing structure comprises a base, a clamping ring and a threaded sleeve, the angle measuring sensor is installed in the threaded sleeve, the outer side surface of the threaded sleeve is screwed with the base through threads, and the clamping ring is installed in a shaft shoulder groove of the angle measuring sensor; when the threaded sleeve is screwed, the bottom end of the threaded sleeve compresses the clamping ring, and the angle measurement sensor is compressed on the base through the clamping ring, so that the limit of the angle measurement sensor is realized.
Furthermore, the inner diameter of the clamping ring is smaller than the outer diameter of a shaft shoulder of the angle measuring sensor, and a notch is formed in the clamping ring; the snap ring is broken off from the notch, the snap ring can be sleeved into the shaft shoulder groove of the angle measuring sensor, and then the snap ring is restored to the original state, so that the snap ring is sleeved in the groove of the shaft shoulder of the angle measuring sensor in an empty mode and cannot fall off.
Furthermore, the first rotation angle range adjusting device and the second rotation angle range adjusting device are identical in structure and comprise adjusting screws, adjusting gears, cams, limiting shafts, brackets and photoelectric switches, the adjusting screws are arranged on the limiting shafts through the brackets and rotate along with the limiting shafts, the adjusting screws and the cams are connected into a whole through fasteners and are arranged on the brackets, the adjusting gears and the cams can rotate around the brackets together through rotation of the adjusting screws, relative positions between protrusions on the cams and the photoelectric switches are changed, when the protrusions on the cams are close to the photoelectric switches, rotation of the rotation angle positions can be reached, and the photoelectric switches trigger electric signals to enable the rotary table to stop rotating.
Further, when the rotation angle reaches the limit rotation angle position, the photoelectric switch triggers an electric signal to enable the servo control system to control the rotary table to stop rotating.
Furthermore, the electric limiting mechanism further comprises a locking nut, and after the forward limit corner position and the reverse limit corner position of the rotary table are determined, the locking nut is locked to ensure that the relative position between the cam and the photoelectric switch is kept fixed, so that the relative position between two axially overlapped cams which are in charge of forward limit and reverse limit is fixed, and the limit corner range of the rotary table is ensured to be fixed.
Furthermore, the electrical limiting mechanism also comprises a fixed seat which is used for installing and positioning the photoelectric switch; two photoelectric switches can be longitudinally arranged in the fixed seat, and an adjusting pad for adjusting the height is arranged below the photoelectric switches; the lower part of the fixed seat is provided with a bulge to match with a positioning groove on the base, and the angle measuring mechanism and the electrical limiting mechanism are arranged on the base.
Furthermore, a counter bore and a screw hole are arranged in the bulge of the fixing seat, the counter bore is used for fixing the fixing seat, and the screw hole is used for adjusting the relative radial distance between the photoelectric switch and the cam and repairing the thickness of the adjusting pad.
Compared with the conventional separated angle measuring mechanism and the electric limiting mechanism, the invention has the beneficial effects that:
1) the functions of detecting the speed and the position of the last-stage output shaft of the rotary table and electrically limiting the extreme rotation angle position of the rotary table are realized simultaneously, and the structure of the rotary table is simplified;
2) the flexible configuration can be carried out at any circumferential position of the last-stage output shaft of the rotary table according to the structural layout of the rotary table, the space of the port of the output shaft of the rotary table is not occupied, the arrangement of cables, optical cables and liquid cooling pipelines in the output shaft of the rotary table is not influenced, and the universality is strong;
3) the angle conversion of any limit corner range of the rotary table and the continuous adjustment of the electric limit angle range within the range of-360 degrees to +360 degrees are realized, and the precision and the accuracy of the electric limit of the limit corner position are improved;
4) the limit rotation angle range adjusting structure can be reliably self-locked at any position, and meets the use requirements of various severe impact and vibration environmental conditions;
5) the elastic clamping structure with high torsional rigidity simplifies the connection relation between the angle measuring shaft and the angle measuring sensor, reduces the influence of coaxiality error between the angle measuring sensor and the angle measuring shaft on the angle measuring precision, improves the angle measuring precision, and has strong environmental adaptability and convenient installation and debugging;
6) the angle measuring sensor adopts a spinning type fixing structure, so that the universality of the installation of the angle measuring sensor is improved, and the installation is convenient, stable and reliable;
7) the photoelectric switch adopts an adjustable T-shaped mounting, positioning and structure, the radial distance between the photoelectric switch and the cam can be accurately adjusted, the mounting and positioning precision of the photoelectric switch is improved, and the photoelectric switch is ensured to be switched normally and reliably;
8) the configurable modular turntable angle measurement and electrical limiting composite mechanism provided by the invention adopts a modular structure, and has the advantages of simple structure, flexible configuration, high maturity, strong environmental adaptability, reliable use and low cost.
Drawings
FIG. 1 is one of the schematic layouts of a reciprocating turret structure;
FIG. 2 is a second schematic layout of the reciprocating turret structure;
FIG. 3 is a schematic view of the configuration of the angle measurement and electrical spacing mechanism;
FIG. 4 is a cross-sectional view of a combination angle measuring and electrical spacing mechanism;
FIG. 5 is a schematic structural view of a combined angle measurement and electrical spacing mechanism;
FIG. 6 is a schematic view of the construction of the spring clip assembly;
FIG. 7 is a schematic exploded view of the outer sleeve and cone nut of the spring clip assembly;
FIG. 8 is a cross-sectional view of a spinning fixture;
FIG. 9 is a schematic view of a snap ring structure of the spinning fixing structure;
fig. 10 is a schematic structural view of the first extreme rotational angle range adjusting means;
fig. 11 is a schematic structural view of a second limited rotation angle range adjustment device;
FIG. 12 is a schematic view of the mounting and positioning of the fixing base;
FIG. 13 is a schematic view of the installation of the adjustment pad;
description of the drawings: 01-a speed reducing mechanism, 02-an angle measuring and electric limiting composite mechanism, 03-a first final-stage output shaft gear, 04-a second final-stage output shaft gear, 05-load; 1-a base, 2-an angle measuring gear, 3-an angle measuring shaft, 4-an elastic clamp set, 5-a base, 6-a clamping ring, 7-a threaded sleeve, 8-an angle measuring sensor, 9-a first photoelectric switch, 10-a second photoelectric switch, 11-a fixed seat, 12-a second cam, 13-a first adjusting screw, 14-a second adjusting gear, 15-a locking nut, 16-a bracket, 17-a second adjusting screw, 18-a first adjusting gear, 19-a first cam, 20-a limiting shaft, 21-a limiting gear, 22-an end cover, 23-an input shaft, 24-an input gear, 25-a nut and 26-an adjusting pad; 101-positioning grooves; 401-external thread, 402-set screw, 403-cone nut, 404-elasticity; 1101-screw holes.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, specific embodiments of the present invention will now be described. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The layout of a common reciprocating turntable structure is shown in figures 1 and 2.
As shown in fig. 1 to 3, the configurable modular turntable angle measurement and electrical limiting composite mechanism provided by the present invention can be configured according to the requirements of turntable structure layout, size limitation, etc.:
a) indirect configuration: an input gear 24 of the angle measurement and electrical limiting composite mechanism 02 is meshed with a final-stage output shaft gear II 04 of the rotary table, and the rotary motion of the rotary table is transmitted to the angle measurement and electrical limiting composite mechanism 02 as shown in figure 1;
b) direct configuration: an input gear 24 of the angle measurement and electrical limiting compound mechanism 02 is meshed with a final-stage output shaft gear I03 of the rotary table, and the rotary motion of the rotary table is transmitted to the angle measurement and electrical limiting compound mechanism 02 as shown in fig. 2;
c) position configuration: according to the requirements of the space layout of the rotary table and the like, the configuration of the combined angle measuring and electric limiting mechanism 02 on the rotary table can be carried out at any position in the circumferential direction of the final output shaft gear I03 or the final output shaft gear II 04 of the rotary table, the configuration schematic diagram is shown in fig. 3, wherein A, B, C, D is at any configurable position on the circumference of the final output shaft gear I03 or the final output shaft gear II 04.
The invention provides a configurable modular turntable angle measurement and electrical limiting composite mechanism, which comprises an input gear 24, an input shaft 23, an angle measurement mechanism and an electrical limiting mechanism, wherein the input gear 24 is meshed with a last-stage output shaft gear I03 or a last-stage output shaft gear II 04 of a turntable to transmit the rotary motion of the turntable to the input shaft 23, shaft gears on the input shaft 23 are respectively meshed with an angle measurement gear 2 of the angle measurement mechanism and a limiting gear 21 of the electrical limiting mechanism, and the angle measurement and electrical limiting functions are respectively realized through the angle measurement mechanism and the electrical limiting mechanism.
First, angle measuring mechanism
The basic principle of angle measurement of the invention is as follows: the shaft of the angle measuring sensor 8 of the angle measuring mechanism keeps consistent with the operation of the final output shaft of the rotary table (namely the transmission ratio is 1:1), thereby realizing the measurement of the rotary angle of the rotary table.
As shown in fig. 4 and 5, the angle measuring mechanism includes an angle measuring gear 2, an angle measuring shaft 3, an elastic clamp sleeve 4 and an angle measuring sensor 8, the angle measuring gear 2 is engaged with a shaft gear on an input shaft 23 to transmit the motion of the final output shaft of the turntable to the angle measuring shaft 3, the angle measuring shaft 3 is connected with the shaft of the angle measuring sensor 8 through the elastic clamp sleeve 4 to transmit the operating state of the turntable to the angle measuring sensor 8, and the measurement of the speed and the position of the final output shaft of the turntable is realized.
In a preferred embodiment of the present invention, as shown in fig. 6 and 7, the elastic clamp kit 4 includes an outer sleeve 401, a set screw 402, a cone nut 403, and an elastic clamp 404, the shaft of the angle sensor 8 can be inserted into a central hole of the cone nut 403, the outer sleeve 401 is moved in the axial direction of the angle sensor 8 by screwing so that the cone nut 403 is deformed to clamp the shaft of the angle sensor 8, and the shaft of the angle sensor 8 is fixed by the set screw 402; one end of the elastic clip 404 is attached to the cone nut 403 by a fastener, and the other end thereof holds the angle shaft 3. Specifically, the shaft head of the angle measuring shaft 3 clamped by the elastic clamp 404 is a square flat shaft.
In a preferred embodiment of the present invention, as shown in fig. 8 and 9, the angle measuring mechanism further includes a spinning type fixing structure for fixing the angle measuring sensor 8. Spinning formula fixed knot constructs including base 5, snap ring 6 and swivel nut 401, and angle measurement sensor 8 installs in swivel nut 401, and swivel nut 401's lateral surface passes through screw-thread fit with base 5, and snap ring 6 installs in angle measurement sensor 8's shaft shoulder recess. When the threaded sleeve 401 is screwed, the bottom end of the threaded sleeve 401 compresses the clamping ring 6, and the angle measurement sensor 8 is compressed on the base 5 through the clamping ring 6, so that the limit of the angle measurement sensor 8 is realized. Specifically, the inner diameter of the snap ring 6 is smaller than the outer diameter of a shaft shoulder of the angle measuring sensor 8, and a notch is formed in the snap ring 6. The snap ring 6 is broken off from the notch, the snap ring 6 can be sleeved into the shaft shoulder groove of the angle measuring sensor 8, and then the snap ring 6 is restored to the original state, so that the snap ring 6 is sleeved in the shaft shoulder groove of the angle measuring sensor 8 in an empty mode, and the snap ring cannot fall off.
Second, electric limiting mechanism
The electrical limiting basic principle of the invention is as follows: the rotation of any limit rotation angle range of the rotary table is transmitted to the limit shaft 20 through the electric limit mechanism, so that the rotation angle range of the limit shaft 20 is kept within +/-360 degrees.
As shown in fig. 4 and 5, after the limit gear 21 is engaged with the shaft gear on the input shaft 23, the motion of the last-stage output shaft of the turntable is transmitted to the limit shaft 20, the operating state of the turntable is transmitted to the electrical limit mechanism through the limit shaft 20, the protrusion of the cam on the electrical limit mechanism is close to the sensing surface of the photoelectric switch, an electrical signal is triggered, and the electrical limit of the limited rotation angle position of the turntable is realized by feeding back the electrical signal to the servo control system.
The electric limiting mechanism is formed by axially overlapping two sets of first rotating angle range adjusting devices and second rotating angle range adjusting devices with limiting angle ranges of 0-360 degrees, and the first rotating angle range adjusting devices and the second rotating angle range adjusting devices respectively realize continuous adjustment of forward limiting rotating angle ranges and reverse limiting rotating angle ranges of the rotary table.
As shown in fig. 10, the first rotation angle range adjusting device includes a first adjusting screw 13, a first adjusting gear 18, a first cam 19, and a first photoelectric switch 9, the first adjusting screw 13 is disposed on a limiting shaft 20 through a bracket 16 and rotates with the limiting shaft 20, and the first adjusting screw 13 and the first cam 19 are integrally connected through a fastening member and disposed on the bracket 16. The rotation of the first adjusting screw 13 can make the first adjusting gear 18 and the first cam 19 rotate together around the bracket 16, change the relative position between the projection on the first cam 19 and the first photoelectric switch 9, and when the projection on the first cam 19 approaches the first photoelectric switch 9, namely reaches the limit rotation angle position, the first photoelectric switch 9 triggers an electric signal to stop the rotation of the rotary table. Specifically, the distance between the first photoelectric switch 9 and the first cam 19 should satisfy the detection requirement of the first photoelectric switch 9.
As shown in fig. 11, the second limiting angle range adjusting device has the same structure as the first limiting angle range adjusting device, and includes a second adjusting screw 17, a second adjusting gear 14, a second cam 12, and a second photoelectric switch 10, the second adjusting screw 17 is disposed on the limiting shaft 20 through a bracket 16 and rotates with the limiting shaft 20, and the second adjusting screw 17 and the second cam 12 are integrally connected through a fastening member and disposed on the bracket 16. The rotation of the second adjusting screw 17 can make the second adjusting gear 14 and the second cam 12 rotate together around the bracket 16, change the relative position between the projection on the second cam 12 and the second photoelectric switch 10, and when the projection on the second cam 12 approaches the second photoelectric switch 10, that is, reaches the limit rotation angle position, the second photoelectric switch 10 triggers an electric signal to stop the rotation of the turntable. Specifically, the distance between the second photoelectric switch 10 and the second cam 12 should satisfy the detection requirement of the second photoelectric switch 10.
After the left and right limit rotation angle positions of the rotary table are determined, the locking nut 15 is locked to ensure that the relative positions between the first cam 19 and the first photoelectric switch 9 and between the second cam 12 and the second photoelectric switch 10 are kept fixed, so that the relative position between two axially overlapped cams (namely the first cam 19 and the second cam 12) which are responsible for left and right limit is fixed, and the limit rotation angle range of the rotary table is ensured to be fixed.
Taking the structure of the first rotating angle range adjusting device responsible for adjusting the unidirectional limit rotating angle range of the rotary table as an example, the implementation process of adjusting the limit rotating angle range of the rotary table is as follows:
the bracket 16 is arranged on the limiting shaft 20, and when the limiting shaft 20 rotates, the bracket 16 is driven to rotate together by the square flat shaft; the first adjusting screw 13 is arranged on the bracket 16 and rotates together with the bracket 16; the first adjusting gear 18 and the first cam 19 are connected into a whole through a fastener and are sleeved on the bracket 16; the first photoelectric switch 9 is fixedly mounted on the base 1.
Limiting corner range adjusting principle:
the forward and reverse rotation of the first adjusting screw 13 can make the first adjusting gear 18 and the first cam 19 rotate forward and reverse to adjust the limit rotation angle range of the rotary table: when the limiting shaft 20 is static, the first adjusting screw 13 is rotated, the first adjusting gear 18 and the first cam 19 rotate together around the bracket 16, the bulge on the first cam 19 is close to the sensing area of the first photoelectric switch 9, and the state that the first photoelectric switch 9 can be triggered to act is reached, so that the limiting rotation angle range of the rotary table is adjusted.
After the limit corner position of the rotary table is determined, the locking nut 15 is locked, so that the relative position between the first cam 19 and the first photoelectric switch 9 can be ensured to be fixed, and the electric limit in the direction can be realized.
The reverse rotation angle limit position adjustment is realized through the second cam 12, the second adjusting gear 14, the second adjusting screw 17 and the second photoelectric switch 10, the adjustment principle is the same, and the description is omitted.
In a preferred embodiment of the present invention, as shown in fig. 12, the electrical limit mechanism further includes a fixing base 11 for mounting and positioning the first and second photoelectric switches 9 and 10. Can vertically install first photoelectric switch 9 and second photoelectric switch 10 in fixing base 11, the below of fixing base 11 is provided with the arch to the constant head tank 101 on the cooperation base 1. A countersunk hole is formed in the protrusion of the fixing seat 11 and used for fixing the fixing seat 11.
In a preferred embodiment of the present invention, as shown in fig. 13, an adjustment pad 26 for adjusting the height is provided below the first or second photoelectric switch 9 or 10. As shown in fig. 12, a screw hole 1101 is further provided in the protrusion of the fixing base 11, and the screw hole 1101 is used for adjusting the relative radial distance between the photoelectric switch and the cam, and for adapting the thickness of the adjusting pad 26.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally placed when the present invention is used, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either a wired or wireless connection.
Claims (10)
1. A configurable modular turntable angle measurement and electrical limiting composite mechanism is characterized by comprising an input gear, an input shaft, an angle measurement mechanism and an electrical limiting mechanism, wherein the input gear is meshed with a final output shaft gear of a turntable and transmits the rotation motion of the turntable to the input shaft;
the angle measuring mechanism comprises an angle measuring gear, an angle measuring shaft, an elastic clamp external member and an angle measuring sensor, wherein the angle measuring gear is meshed with a shaft gear on the input shaft and transmits the motion of the final output shaft of the rotary table to the angle measuring shaft, the angle measuring shaft is connected with the shaft of the angle measuring sensor through the elastic clamp external member and transmits the running state of the rotary table to the angle measuring sensor, and the speed and the position of the final output shaft of the rotary table are measured;
the electric limiting mechanism comprises a first rotating angle range adjusting device and a second rotating angle range adjusting device, wherein the first rotating angle range adjusting device and the second rotating angle range adjusting device are axially arranged in a stacked mode, and continuous adjustment of forward limit rotating angle ranges and reverse limit rotating angle ranges of the rotary table is achieved respectively.
2. The configurable modular turntable angle-measuring and electrical limiting combined mechanism of claim 1, wherein the elastic clamping sleeve component comprises an outer sleeve, a set screw, a cone nut and an elastic clamp, a shaft of the angle-measuring sensor can extend into a central hole of the cone nut, the outer sleeve is axially moved on the angle-measuring sensor through screwing so as to deform the cone nut to clamp the shaft of the angle-measuring sensor, and the shaft of the angle-measuring sensor is fixed through the set screw; one end of the elastic clamp is mounted on the cone nut through a fastener, and the other end of the elastic clamp clamps the angle measuring shaft.
3. The configurable modular turntable angle-measuring and electrical-limiting combined mechanism of claim 2, wherein the shaft head of the angle-measuring shaft clamped by the elastic clamp is a square flat shaft.
4. The combined angle measuring and electrical limiting mechanism of the configurable modular turntable according to claim 1, wherein the angle measuring mechanism further comprises a spinning fixing structure for fixing the angle measuring sensor; the spinning type fixing structure comprises a base, a clamping ring and a threaded sleeve, the angle measuring sensor is installed in the threaded sleeve, the outer side surface of the threaded sleeve is screwed with the base through threads, and the clamping ring is installed in a shaft shoulder groove of the angle measuring sensor; when the threaded sleeve is screwed, the bottom end of the threaded sleeve compresses the clamping ring, and the angle measurement sensor is compressed on the base through the clamping ring, so that the limit of the angle measurement sensor is realized.
5. The configurable modular turntable angle-measuring and electrical-limiting combined mechanism according to claim 4, wherein the inner diameter of the clamping ring is smaller than the outer diameter of the shaft shoulder of the angle-measuring sensor, and a notch is formed in the clamping ring; the snap ring is broken off from the notch, the snap ring can be sleeved into the shaft shoulder groove of the angle measuring sensor, and then the snap ring is restored to the original state, so that the snap ring is sleeved in the groove of the shaft shoulder of the angle measuring sensor in an empty mode and cannot fall off.
6. A configurable modular turntable angle measurement and electrical position limitation combined mechanism according to any one of claims 1 to 5, it is characterized in that the first rotating angle range adjusting device and the second rotating angle range adjusting device have the same structure and comprise adjusting screws, adjusting gears, cams, a limiting shaft, a bracket and a photoelectric switch, the adjusting screws are arranged on the limiting shaft through the bracket, and rotates along with the limit shaft, the adjusting screw and the cam are connected into a whole through a fastener and are arranged on the bracket, the rotation of the adjusting screw can make the adjusting gear and the cam rotate together around the bracket to change the relative position between the projection on the cam and the photoelectric switch, when the projection on the cam approaches the photoelectric switch, namely the limit rotation angle position is reached, the photoelectric switch triggers an electric signal to stop the rotation of the rotary table.
7. The combined angle measuring and electrical limiting mechanism of a configurable modular turntable according to claim 6, wherein when the limit rotation angle position is reached, the photoelectric switch triggers an electrical signal to make a servo control system control the turntable to stop rotating.
8. The configurable modular turret angle measurement and electrical limiting combined mechanism according to claim 6, wherein the electrical limiting mechanism further comprises a locking nut, and when the forward and reverse limiting rotation angle positions of the turret are determined, the locking nut is locked to ensure that the relative position between the cam and the optoelectronic switch is kept fixed, so that the relative position between two axially overlapped cams in charge of forward and reverse limiting is fixed, and the limiting rotation angle range of the turret is ensured to be fixed.
9. The combined angle measuring and electrical limiting mechanism of a configurable modular turntable according to claim 6, wherein the electrical limiting mechanism further comprises a fixing seat for mounting and positioning the photoelectric switch; two photoelectric switches can be longitudinally arranged in the fixed seat, and an adjusting pad for adjusting the height is arranged below the photoelectric switches; the lower part of the fixed seat is provided with a bulge to match with a positioning groove on the base, and the angle measuring mechanism and the electrical limiting mechanism are arranged on the base.
10. The combined angle measuring and electrical limiting mechanism for the configurable modular turntable of claim 9, wherein a countersunk hole and a screw hole are formed in the protrusion of the fixing base, the countersunk hole is used for fixing the fixing base, and the screw hole is used for adjusting the relative radial distance between the photoelectric switch and the cam and modifying the thickness of the adjusting pad.
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| CN202010577393.8A CN111694397B (en) | 2020-06-23 | 2020-06-23 | Configurable modular turntable angle measurement and electrical limiting composite mechanism |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201256177Y (en) * | 2008-04-30 | 2009-06-10 | 中国兵器工业第二○六研究所 | Built-in over 360 deg. Limited azimuth radar antenna seat |
| CN101797702A (en) * | 2010-01-22 | 2010-08-11 | 成都工具研究所 | Device for measuring position precision of digital control turntable by using laser angle interferometer |
| CN207406723U (en) * | 2017-10-27 | 2018-05-25 | 深圳市路远智能装备有限公司 | A kind of angle limit mechanism more than 360 degree |
| CN108680903A (en) * | 2018-04-10 | 2018-10-19 | 成都信息工程大学 | A kind of High Accuracy Radar |
| CN208207614U (en) * | 2018-06-13 | 2018-12-07 | 南京乾波通信技术有限公司 | A kind of turntable feedback and limiting device |
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2020
- 2020-06-23 CN CN202010577393.8A patent/CN111694397B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201256177Y (en) * | 2008-04-30 | 2009-06-10 | 中国兵器工业第二○六研究所 | Built-in over 360 deg. Limited azimuth radar antenna seat |
| CN101797702A (en) * | 2010-01-22 | 2010-08-11 | 成都工具研究所 | Device for measuring position precision of digital control turntable by using laser angle interferometer |
| CN207406723U (en) * | 2017-10-27 | 2018-05-25 | 深圳市路远智能装备有限公司 | A kind of angle limit mechanism more than 360 degree |
| CN108680903A (en) * | 2018-04-10 | 2018-10-19 | 成都信息工程大学 | A kind of High Accuracy Radar |
| CN208207614U (en) * | 2018-06-13 | 2018-12-07 | 南京乾波通信技术有限公司 | A kind of turntable feedback and limiting device |
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| CN111694397B (en) | 2021-11-09 |
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