CN213455508U

CN213455508U - Device for detecting multi-turn angular position by using single-turn encoder

Info

Publication number: CN213455508U
Application number: CN202022601228.XU
Authority: CN
Inventors: 张旭日; 李现峰; 司占龙
Original assignee: Hebei Yuejie Electronic Technology Co ltd
Current assignee: Hebei Yuejie Electronic Technology Co ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-06-15
Anticipated expiration: 2030-11-11

Abstract

The utility model provides an utilize single circle encoder to detect device of many rings of angular position belongs to encoder technical field. The device for detecting the multi-circle angular positions by using the single-circle encoder comprises a first gear combination, an input gear shaft, a synchronous box and the single-circle encoder, wherein the input gear shaft is arranged on the first gear combination, a second gear combination and an output driving shaft are arranged in the synchronous box, the second gear combination is meshed with the input gear shaft, and the single-circle encoder is arranged on an encoder support and connected with the output driving shaft on the synchronous box. The device can realize the detection of the multi-circle angle by utilizing the single-circle encoder, and has higher precision and lower cost.

Description

Device for detecting multi-turn angular position by using single-turn encoder

Technical Field

The utility model belongs to the technical field of the encoder, concretely relates to utilize single circle encoder to detect device of many rings of angular position.

Background

In the prior art, a multi-turn encoder is used for detecting a multi-turn angle, but the multi-turn encoder is expensive and high in cost, and the cost is higher compared with a multi-turn turntable with general precision requirements.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an utilize single circle encoder to detect device of many circles of angular position to solve how reduce cost, utilize single circle encoder to realize the technical problem who detects the angle of many circles.

In order to achieve the above object, the technical solution of the present invention is:

the utility model provides an utilize single circle encoder to detect device of many rings of angular position, includes first gear combination, input gear shaft, synchronous case and single circle encoder, and the input gear shaft sets up in first gear combination and closes, synchronous incasement is equipped with second gear combination, output drive shaft, second gear combination and input gear shaft mesh, single circle encoder is installed on the encoder support and is connected with the output drive shaft on the synchronous case.

Preferably, the first gear combination is meshed with a main driving gear of the rotary table and is driven to rotate by the main driving gear of the rotary table.

Preferably, the rotating speed of the first gear combination meshed with the main driving gear of the rotary table is a speed ratio 1, the rotating speed of the second gear combination meshed with the input gear shaft is a speed ratio 2, and the value of the speed ratio 2 is equal to the value of the speed ratio 1 multiplied by the value of the rotary table rotation circle.

Preferably, the first gear combination and the second gear combination are combined into an anti-backlash gear combination and composed of two gears, and the middles of the two gears are connected through a tension spring.

Preferably, an elastic coupling is arranged on the output driving shaft, and the output driving shaft is connected with a rotating shaft of the single-turn encoder through the elastic coupling.

The utility model has the advantages that:

the device can realize the detection of the multi-circle angle by utilizing the single-circle encoder, and has higher precision and reduced cost.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

Referring to fig. 1, the device for detecting angular positions of multiple circles by using a single-circle encoder comprises a first gear combination 1, an input gear shaft 2, a synchronous box 3 and a single-circle encoder 4, wherein the input gear shaft 2 is arranged on the first gear combination 1, a second gear combination 5 and an output driving shaft 6 are arranged in the synchronous box 3, the second gear combination 5 is meshed with the input gear shaft 2, and the single-circle encoder 4 is arranged on an encoder bracket 7 and connected with the output driving shaft 6 on the synchronous box. Preferably, the first gear combination 1 is meshed with a main driving gear (not shown in the figure) of the rotary table, and is driven to rotate by the main driving gear of the rotary table.

It is rotatory that first gear combination 1 drive by the main drive gear on the revolving stage, input gear shaft 2 on the first gear combination stretches into synchronous case and 3 and 5 meshing (being equipped with the gear on the input gear shaft) of second gear combination to it is rotatory to drive second gear combination 5, and the part that output drive shaft 6 on the second gear combination 5 stretched out synchronous case is connected with single circle encoder, and is further, be equipped with elastic coupling 8 on the output drive shaft 5, output drive shaft 5 is connected through elastic coupling 8 and the rotating shaft of single circle encoder 4, thereby the rotation of drive single circle encoder. Preferably, the rotation speed of the first gear combination 1 meshed with the main driving gear of the rotary table is speed ratio 1, the rotation speed of the second gear combination 5 meshed with the input gear shaft 2 is speed ratio 2, if only a single-circle angle value is measured, as long as the speed ratio 1 is equal to the speed ratio 2, and if a plurality of circles of angle values are measured, the value of the speed ratio 2 is equal to the value of the speed ratio 1 multiplied by the rotation circle value of the rotary table.

Specifically, the speed reduction ratio of the input gear shaft 2 and the second gear combination 5 in the synchronous box body is adjusted to enable the rotating speed of the first gear combination 1 to be 2 times of that of the output driving shaft 6, so that the main gear of the rotary table rotates for 2 circles, and then the rotating shaft of the single-circle encoder rotates for 1 circle. Thus, the rotary table can rotate for two circles, and the single-circle encoder can be used for realizing the effect of a multi-circle encoder through a synchronous box device. When the rotation of the rotary table needs more than 1 circle, the number of turns can be adjusted by adjusting the speed ratio in the synchronous box, so that the single-turn encoder can be suitable for the rotary table rotating for multiple circles.

Preferably, the first gear combination 1 and the second gear combination 5 are anti-backlash gear combinations and are composed of two gears, and the middles of the two gears are connected by a tension spring.

The angle measurement is carried out through the synchronous reduction gearbox, the original reduction gearbox is only in single gear meshing transmission, but the clearance of gear meshing is enlarged due to errors of machining and assembling, and therefore the encoder measurement error is caused. The application changes a single gear into a gear combination to form the anti-backlash double-plate gear, and the anti-backlash double-plate gear is meshed with the gear shaft to generate acting force for eliminating the backlash, so that errors are eliminated.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The utility model provides an utilize single circle encoder to detect device of many rings of angular position which characterized in that, includes first gear combination, input gear axle, synchronization box and single circle encoder, and the input gear axle sets up in first gear combination, the synchronization box is equipped with second gear combination, output drive shaft, second gear combination and input gear axle mesh, the single circle encoder is installed on the encoder support and is connected with the output drive shaft on the synchronization box.

2. The apparatus as claimed in claim 1, wherein the first gear assembly is engaged with a main driving gear of the turntable and rotated by the main driving gear of the turntable.

3. The apparatus as claimed in claim 2, wherein the first gear set is engaged with the main drive gear of the turntable at a speed ratio of 1, the second gear set is engaged with the input gear shaft at a speed ratio of 2, and the value of speed ratio 2 is equal to the value of speed ratio 1 multiplied by the number of revolutions of the turntable.

4. The apparatus according to any of claims 1 to 3, wherein the first gear assembly and the second gear assembly are combined into an anti-backlash gear assembly, which comprises two gears connected by a tension spring.

5. The apparatus of claim 4, wherein the output drive shaft is provided with an elastic coupling, and the output drive shaft is connected with the rotating shaft of the single-turn encoder through the elastic coupling.