CN209803164U - Quick speed sensor of encoder for tractor - Google Patents
Quick speed sensor of encoder for tractor Download PDFInfo
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- CN209803164U CN209803164U CN201920353736.5U CN201920353736U CN209803164U CN 209803164 U CN209803164 U CN 209803164U CN 201920353736 U CN201920353736 U CN 201920353736U CN 209803164 U CN209803164 U CN 209803164U
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Abstract
An encoder rapid speed measuring device for a tractor, comprising: the device comprises an encoder shield, an encoder speed measuring assembly, a bearing seat and a sucker assembly; the encoder protective cover is coaxial with the bearing seat, is fixed on the bearing seat through an inner hexagonal screw and is arranged outside the encoder speed measuring assembly; the encoder speed measuring assembly is sequentially connected with the bearing seat and the sucker assembly; one end of the circular hole of the sucker assembly is fixed on the encoder speed measurement assembly through a sucker locking plate, and the other end of the circular hole is sleeved on the axle end of the wheel of the trial tractor and is fixed on the wheel of the trial tractor through four magnets in an adsorption manner. Compared with other speed measuring devices and speed measuring modes, the speed measuring device and the speed measuring method have the advantages that data obtained by the encoder are more accurate, and the accuracy of test data is improved. Therefore, the speed measuring device has the characteristics of compact structure, convenience in disassembly and assembly, low hardware cost and high testing precision, and is very suitable for outdoor testing conditions of a tractor whole machine or other vehicles.
Description
Technical Field
The utility model belongs to tractor complete machine test equipment field relates to a speed sensor for tractor, especially relates to a quick speed sensor of encoder for tractor.
background
it is known that tractor speed is a key test datum in the whole tractor test process. Therefore, many test occasions are involved where the rotational speed of the tractor wheels needs to be obtained. Regarding the speed measurement of the automobile, the currently common modes mainly include radar speed measurement or image acquisition processing speed measurement, but the two modes have higher test cost and higher requirements on test environment, and test data is greatly influenced by the environment and is not suitable for the speed measurement of the tractor with worse operation conditions. At present, a plurality of speed measuring modes are available for tractors, and the most common mode is to paste a piece of reflective paper on a wheel of a tractor to be tested and then adopt a handheld photoelectric sensor to measure the speed. Although the cost of the test mode is relatively low, the test data is influenced by the environment to a large extent, is sensitive to dust, oil stains and the like, has low accuracy, has large artificial influence factors, causes large errors of the test result, and is difficult to meet the test requirements.
The invention patent application 'a magnetic induction type wheel speed measurement sensor teaching demonstration device' published by the national intellectual property office in 2016, 9, 14, has the patent application numbers: 2016103788453, the filing date of the patent is: 2016, 5 and 26 days, and the bulletin numbers are: CN105938673X, which is close to the content of the present invention. The device consists of a fixed plate, a battery cover, a knob switch, a gear ring, a top cover, a lead, an electronic display, an iron core, a coil, a permanent magnet, a motor and a battery bin.
the invention patent application published by the national intellectual property office in 2013, 3, month 11 and the like discloses a vehicle-mounted speed measuring device, and the patent application numbers are as follows: 2013100769762, the filing date of the patent is: year 2013, month 3, day 11, the announcement number is: CN103207392A, it is comparatively close with the utility model application content. The device comprises a control unit, an air chamber with holes, a sound emitting unit and a sound receiving unit, wherein the sound emitting unit and the sound receiving unit are positioned at two ends inside the air chamber with holes and are respectively connected with the control unit, and the running speed of the train is calculated by comparing the time from the time when the sound emitting unit emits a signal to the time when the sound receiving unit receives the signal during running with the time required by standing. The device has larger volume, is suitable for measuring the speed of large trains and the like, and is not suitable for the actual operation test of the tractor.
In consideration of the actual situation during the test, the true and reliable test data is required to be obtained, and the true and reliable test data cannot be measured only in a laboratory and needs to be obtained during the field test. However, the field operation condition is worse, the land is uneven, the driving of the trial tractor is not uniform, the wheel rotating speed of the trial tractor is uncertain, the field light is variable, and a plurality of factors have great influence on the real reliability of the test data. Therefore, there is a need for a speed measuring device that has a simple and compact structure, is safe and reliable to use, and can ensure the testing precision and is convenient and fast.
based on the above situation, this speed sensor furthest reduces environmental factor and human factor in the design to test measured data's influence, and the device is whole can be stably fixed on being tried tractor drive wheel, combines together with the encoder through the physical principle of magnet, and simple structure is compact, and installation dismantlement convenient operation. The speed measuring device can be used for carrying out speed measuring tests independently, and can also be combined with other test beds, such as a tractor transmission system test bed, a tractor power output test bed and the like, to carry out combined tests. The device has high accuracy of test data, and provides more reliable data support for testing the rotating speed of the driving wheel of the tractor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a quick speed sensor of encoder and speed measuring method for tractor, it has simple structure compactness, installation dismantlement convenience, with low costs, the high characteristic of measuring accuracy.
The utility model discloses reach above-mentioned purpose by following technical scheme: an encoder rapid speed measuring device for a tractor, comprising: the device comprises an encoder shield, an encoder speed measuring assembly, a bearing seat and a sucker assembly; the encoder protective cover is coaxial with the bearing seat, is fixed on the bearing seat through an inner hexagonal screw and is arranged outside the encoder speed measuring assembly; the encoder speed measuring assembly is sequentially connected with the bearing seat and the sucker assembly; one end of the circular hole of the sucker assembly is fixed on the encoder speed measurement assembly through a sucker locking plate, and the other end of the circular hole is sleeved on the axle end of the wheel of the trial tractor and is fixed on the wheel of the trial tractor through four magnets in an adsorption manner.
The encoder assembly that tests the speed includes: the device comprises an elastic coupling, a deep groove ball bearing, an inner hexagonal screw, a round nut lock washer, a speed measuring shaft, a sucker lock plate, an encoder and an encoder support; the encoder, the encoder support, the elastic coupling, the speed measuring shaft, the round nut, the deep groove ball bearing and the sucker locking plate are sequentially connected from left to right; the encoder is fixed on an encoder support through screws, and the encoder support is fixedly installed on the bearing seat through inner hexagonal screws which are uniformly distributed on the circumference; the two ends of the elastic coupling are respectively connected with the encoder and the speed measuring shaft, and the deep groove ball bearing and the speed measuring shaft are coaxial in the horizontal direction and are arranged in the bearing block; the circular nut and the speed measuring shaft are coaxial in the horizontal direction and are arranged on the thread of the speed measuring shaft, and the circular nut stop washer is arranged between the circular nut and the deep groove ball bearing; the sucker locking plate is fixedly arranged on the threaded hole of the speed measuring shaft through a screw and is coaxial with the sucker assembly in the horizontal direction.
the sucking disc assembly includes: a suction cup and a magnet; 4 threaded holes are uniformly distributed on the circumference of the tail part of the sucker, and the middle neutral gear is sleeved at the wheel shaft end of the wheel of the trial tractor; the circular port one end of sucking disc is fixed in the encoder assembly that tests the speed with its location between bearing frame and sucking disc locking plate through the sucking disc locking plate on, the equipartition has four screw holes on the other end afterbody circumference, adsorbs whole encoder quick speed measuring device on being tried to drag the tractor wheel through four pieces of magnet.
The utility model adopts the above technical scheme the positive effect that produces behind is: the speed measuring device is fixed on a wheel of a trial tractor in a magnet adsorption mode, and the wheel of the trial tractor and the encoder are coaxially connected through the elastic coupling, so that the rotating speed of the wheel of the trial tractor is obtained; compared with other modes, the data obtained by the encoder is more accurate, and the authenticity of the test data is improved. In addition, the adsorption force of the four selected magnets of the device is enough to ensure that the speed measuring device is reliably connected, the field installation can be conveniently and quickly carried out through the magnet adsorption connection mode, the limitation of field test conditions is avoided, the operation is quick and convenient, and the test installation preparation time is saved to the maximum extent. Compared with other speed measuring devices and speed measuring modes, the speed measuring device and the speed measuring method have the advantages that data obtained by the encoder are more accurate, and the accuracy of test data is improved. Therefore, the speed measuring device has the characteristics of compact structure, convenience in disassembly and assembly, low hardware cost and high testing precision, and is very suitable for outdoor testing conditions of a tractor whole machine or other vehicles.
Drawings
fig. 1 is a schematic sectional view of an installation structure of a rapid speed measuring device of an encoder for a tractor according to the present invention;
FIG. 2 is a schematic view of the installation configuration of the encoder rapid speed measuring device for a tractor according to the present invention;
FIG. 3 is a schematic cross-sectional view of an encoder rapid speed measuring device assembly for a tractor according to the present invention;
Fig. 4 is the schematic diagram of the outer structure of the sucking disc assembly of the encoder rapid speed measuring device for tractor.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples. As shown in fig. 1-4, a rapid speed measuring device of an encoder for a tractor mainly comprises: encoder guard shield 1, encoder speed measurement assembly 2, bearing frame 3, sucking disc assembly 4. Encoder guard shield 1 is coaxial with bearing frame 3, and encoder guard shield 1 is installed in the 2 outsides of encoder speed measurement assembly through six hexagonal screws 8 in of circumference equipartition on being fixed in bearing frame 3, does not rotate along with encoder 13 in the test process, and protection encoder 13 does not receive the damage. The encoder speed measuring assembly 2 is sequentially connected with the bearing seat 3 and the sucker assembly 4. The encoder speed measuring assembly 2 mainly plays a role in measuring speed in a test, and the sucking disc assembly 4 mainly plays a role of a fixing device in the test. One end of a circular hole of the sucker assembly 4 is fixed on the encoder speed measuring assembly 2 through a sucker locking plate 12, and the other end of the circular hole is sleeved at the axle end of the wheel 5 of the trial tractor and is adsorbed and fixed on the wheel 5 of the trial tractor through four magnets 16 which are uniformly distributed on the circumference.
Encoder assembly 2 that tests the speed includes: the device comprises an elastic coupling 6, a deep groove ball bearing 7, an inner hexagonal bolt 8, a round nut 9, a round nut lock washer 10, a speed measuring shaft 11, a sucker locking plate 12, an encoder 13 and an encoder support 14. The encoder 13, the encoder support 14, the elastic coupling 6, the speed measuring shaft 11, the round nut 9, the deep groove ball bearing 7 and the sucker locking plate 12 are sequentially connected from left to right. The encoder 13 is fixed on the encoder support 14 through screws, and the encoder support 14 is fixed on the bearing seat 3 through inner hexagonal screws 8 uniformly distributed on the circumference and used for fixing the position of the encoder 13. The two ends of the elastic coupling 6 are respectively connected with the shaft end of the encoder 13 and the speed measuring shaft 11, and the encoder 13 obtains the speed consistent with the wheel 5 of the tested tractor through the elastic coupling 6. Because there is the moment of torsion in the shaft end of connecting the shaft end of being tried the tractor wheel 5 and the axle head of encoder 13 during actual operation installation, so choose the elastic coupling 6 that can absorb certain moment of torsion for use, accord with actual installation demand. The deep groove ball bearing 7 and the speed measuring shaft 11 are coaxial in the horizontal direction and are arranged inside the bearing block 3, and the speed measuring shaft 11 and the encoder 13 can obtain the same speed. The round nut 9 and the speed measuring shaft 11 are coaxial in the horizontal direction and are installed on the thread of the speed measuring shaft 11, the position of the deep groove ball bearing 7 is limited in the rotating process of the speed measuring shaft 11, and the round nut stop washer 10 is installed between the round nut 9 and the deep groove ball bearing 7 and is used for fixing the position of the round nut 9 on the speed measuring shaft 11. Before installation sucking disc locking plate 12, earlier adorn 4 round hole ends of sucking disc assembly in the axle 11 that tests the speed, then through the screw with sucking disc locking plate 12 fixed mounting on the screw hole of axle 11 that tests the speed, guarantee sucking disc assembly 4's position and sucking disc locking plate 12 horizontal direction coaxial line, the effect of this place sucking disc locking plate 12 is fixed sucking disc assembly 4 on the axle that tests the speed, rethread sucking disc locking plate 12 presss from both sides tightly, up to this point the quick speed sensor of encoder for whole tractor finishes basically assembling.
The suction cup assembly 4 includes: a suction cup 15 and a magnet 16. The sucking disc 15 is hollow structure, 4 screw holes of afterbody circumference equipartition, and the middle neutral gear of sucking disc 15 is used for cup jointing the wheel axle end of being tried on the tractor wheel 5. The circular port one end of sucking disc 15, need cup joint sucking disc 15 earlier during the installation on the axle 11 tests the speed, then installation sucking disc locking plate 12 uses the screw to be fixed in the axle 11 that tests the speed with sucking disc locking plate 12 on, sucking disc 15 is fixed a position between bearing frame 3 and sucking disc locking plate 12 this moment, is fixed in on encoder assembly 2 that tests the speed. Four threaded holes are evenly distributed in the circumference of the tail of the other end of the sucking disc 15, and in actual operation, the four magnets 16 penetrate through the threaded holes to adsorb the whole encoder quick speed measuring device on the wheel 5 of the trial tractor.
The test steps of using the encoder rapid speed measuring device for the tractor are as follows:
【1】 Before the test is started, the encoder speed measuring assembly 2 is assembled;
【2】 The sucking disc 15 of the speed measuring device is sleeved at the wheel shaft end of the wheel 5 of the trial tractor, and after four magnets 16 pass through threaded holes uniformly distributed on the circumference of the sucking disc 15, the whole device is fixed on the wheel 5 of the trial tractor by virtue of the adsorption force of the magnets 16;
【3】 When a test is started, the tested tractor is started, the wheels 5 of the tested tractor rotate to drive the rapid speed measuring device of the encoder for the tractor to rotate, the speed measuring shaft 11 obtains the same rotating speed as the wheels 5 of the tested tractor, and therefore the speed of the wheels 5 of the tested tractor is transmitted to the encoder 13 through the speed measuring shaft 11;
【4】 Collecting and processing data obtained by the encoder 13 through a system;
【5】 The rotating speed of the wheels 5 of the test tractor is obtained through calculation, so that the speed of the test tractor can be accurately measured.
The utility model discloses broken through the tractor wheel and tested the speed original bottleneck in the technique, fully considered tractor field actual operation condition, the error that causes environmental factor and human factor that probably receives in the test data process falls to minimumly. This device measured data is accurate, and the volume is light and handy, and installation, dismantlement are convenient, through the form fixing device of magnet absorption, and the dismantlement operation is swift, satisfies outdoor operation actual conditions, and the mode of testing the speed through the encoder is more accurate than preceding light sense mode of testing the speed, and measured data receives other factors to influence lessly, has higher in-service use and worth.
Claims (3)
1. An encoder rapid speed measuring device for a tractor, comprising: the device comprises an encoder shield (1), an encoder speed measuring assembly (2), a bearing seat (3) and a sucker assembly (4); the method is characterized in that: the encoder shield (1) is coaxial with the bearing seat (3), and the encoder shield (1) is fixed on the bearing seat (3) through an inner hexagonal screw (8) in the encoder speed measuring assembly (2) and is arranged outside the encoder speed measuring assembly (2); the encoder speed measuring assembly (2) is sequentially connected with the bearing seat (3) and the sucker assembly (4); one end of a circular hole of the sucker assembly (4) is fixed on the encoder speed measuring assembly (2) through a sucker locking plate (12) in the encoder speed measuring assembly (2), and the other end of the circular hole is sleeved into a wheel shaft end of the wheel (5) of the trial tractor and is fixedly adsorbed on the wheel (5) of the trial tractor through four magnets (16) in the sucker assembly (4).
2. A rapid speed measuring device of an encoder for a tractor according to claim 1, characterized in that: the encoder speed measurement assembly (2) comprises: the device comprises an elastic coupling (6), a deep groove ball bearing (7), an inner hexagonal screw (8), a round nut (9), a round nut stop washer (10), a speed measuring shaft (11), a sucker locking plate (12), an encoder (13) and an encoder support (14); the device comprises an encoder (13), an encoder support (14), an elastic coupling (6), a speed measuring shaft (11), a round nut (9), a deep groove ball bearing (7) and a sucker locking plate (12), wherein the encoder (13), the encoder support (14), the elastic coupling (6), the speed measuring shaft, the round nut (9), the deep groove ball bearing and the sucker locking plate are sequentially connected from left; the encoder (13) is fixed on an encoder support (14) through screws, and the encoder support (14) is fixedly installed on the bearing seat (3) through inner hexagonal screws (8) which are uniformly distributed on the circumference; two ends of the elastic coupling (6) are respectively connected with the encoder (13) and the speed measuring shaft (11), and the deep groove ball bearing (7) and the speed measuring shaft (11) are coaxial in the horizontal direction and are arranged inside the bearing block (3); the round nut (9) and the speed measuring shaft (11) are coaxial in the horizontal direction and are arranged on the thread of the speed measuring shaft (11), and the round nut stop washer (10) is arranged between the round nut (9) and the deep groove ball bearing (7); the sucker locking plate (12) is fixedly arranged on a threaded hole of the speed measuring shaft (11) through a screw and is coaxial with the sucker assembly (4) in the horizontal direction.
3. A rapid speed measuring device of an encoder for a tractor according to claim 1, characterized in that: the suction cup assembly (4) includes: a suction cup (15) and a magnet (16); four threaded holes are uniformly distributed on the circumference of the sucker (15) and the tail part, and the middle neutral gear is sleeved at the axle end of the wheel (5) of the trial tractor; the round hole one end of sucking disc (15) is fixed a position it between bearing frame (3) and sucking disc locking plate (12) through sucking disc locking plate (12), is fixed in the encoder assembly (2) that tests the speed, and the equipartition has four screw holes on the other end afterbody circumference, adsorbs the quick speed sensor of whole encoder on being tried tractor wheel (5) through four pieces of magnet (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920353736.5U CN209803164U (en) | 2019-03-20 | 2019-03-20 | Quick speed sensor of encoder for tractor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920353736.5U CN209803164U (en) | 2019-03-20 | 2019-03-20 | Quick speed sensor of encoder for tractor |
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| CN209803164U true CN209803164U (en) | 2019-12-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109765396A (en) * | 2019-03-20 | 2019-05-17 | 洛阳西苑车辆与动力检验所有限公司 | A kind of quick speed measuring device of used with tractor encoder and speed-measuring method |
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2019
- 2019-03-20 CN CN201920353736.5U patent/CN209803164U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109765396A (en) * | 2019-03-20 | 2019-05-17 | 洛阳西苑车辆与动力检验所有限公司 | A kind of quick speed measuring device of used with tractor encoder and speed-measuring method |
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