CN211147699U - Encoder suitable for weaving machine - Google Patents

Abstract

The utility model belongs to the technical field of photoelectric encoders, in particular to an encoder suitable for a textile machine; the code disc device comprises a main body, a shell which is buckled and fixed on the main body, a code disc seat, a code disc pressing ring, a slit plate, a luminous plate and a receiving circuit board which are positioned in the shell; the device also comprises a semi-hollow shaft; the semi-hollow shaft is arranged in the main body through a lower bearing and an upper bearing, the code disc seat is sleeved outside the upper end of the semi-hollow shaft, and the code disc is fixedly pressed on the code disc seat through a code disc compression ring arranged on the semi-hollow shaft; the code disc is positioned between the receiving circuit board and the slit plate, and the slit plate is positioned above the light-emitting plate; the utility model discloses do not need the flat spring flexible coupling, but through the half hollow shaft direct mount to the epaxial direct mount of user half hollow shaft encoder that uses.

Description

Encoder suitable for weaving machine

Technical Field

The utility model belongs to the technical field of photoelectric encoder, concretely relates to encoder suitable for weaving machine.

Background

The photoelectric encoder is a sensor that converts mechanical geometric displacement on an output shaft into pulses or digital quantity through photoelectric conversion, which is one of the most applied sensors at present. The photoelectric encoder is composed of a grating disc and a photoelectric detection device. The development of photoelectric encoders to date has developed into a series of industrial products with multiple specifications and high performance. The high-speed motor-driven servo motor is applied to industries such as machine tools, elevators, servo motor matching, textile machine machinery, packaging machinery, printing machinery, hoisting machinery and the like in a high proportion.

Disclosure of Invention

In order to overcome the problem, the utility model provides an encoder suitable for weaving machine need not leaf spring flexible coupling, but through half hollow shaft snap-on to the epaxial snap-on of user's side hollow shaft encoder that uses.

In order to solve the technical problem, the utility model provides an encoder suitable for textile machine, including main part 1, the casing 2 that buckles and fixes on main part 1, code wheel seat 5, code wheel 9, code wheel clamping ring 6, slit board 10, luminescent plate 11 and receiving circuit board 8 that are located in casing 2; also comprises a semi-hollow shaft 3; the semi-hollow shaft 3 is arranged in the main body 1 through a lower bearing 13 and an upper bearing 12, the code disc seat 5 is sleeved and fixed on the outer side of the upper end of the semi-hollow shaft 3, the bottom surface of the code disc seat 5 is contacted with the top surface of the upper bearing 12, and the code disc 9 is fixedly pressed on the code disc seat 5 through a code disc pressing ring 6 arranged on the semi-hollow shaft 3; the slit plate 10 and the light emitting plate 11 are fixed on the main body 1, the receiving circuit board 8 is fixed on the main body 1 through the posts 4, the code wheel 9 is located between the receiving circuit board 8 and the slit plate 10, and the slit plate 10 is located above the light emitting plate 11.

The light emitting plate 11 is fixed in a groove 18 arranged at the top of the main body 1 through a screw, and the slit plate 10 is adhered to the upper end surface of the main body 1; the upper part of the main body 1 is provided with a column 4, and a screw passes through the column 4 to screw the receiving circuit board 8 on the main body 1.

The locking ring 14 is arranged on the part of the semi-hollow shaft 3 below the main body 1.

The bottom surface of the main body 1 is provided with a positioning mounting hole 17.

And a rubber outlet sleeve 15 is arranged above the side wall of the shell 2.

The utility model has the advantages that:

the utility model adopts a semi-hollow structure, is directly connected with the motor shaft, does not need spring leaf flexible connection when being installed, can be directly used by directly installing the encoder, and has simple installation and reasonable structure;

the hollow shaft of the encoder has a larger diameter and a smaller volume under the same diameter of the encoder.

Drawings

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

Fig. 2 is a schematic view of the present invention.

Fig. 3 is a schematic view of the present invention.

Fig. 4 is a sectional view taken along line a-a of fig. 1.

Fig. 5 is a schematic structural view of the main body of the present invention.

Wherein: 1. a main body; 2. a housing; 3. a semi-hollow shaft; 4. a column; 5. a code disc seat; 6. a code disc is pressed; 7. tightening the screw; 8. receiving a circuit board; 9. code disc; 10. a slit plate; 11. a light emitting panel; 12. 13 bearing; 14. locking a ring; 15. a rubber outlet sleeve; 16 positioning grooves; 17. positioning holes; 18 body recess.

Detailed Description

The invention will be further described with reference to the accompanying drawings:

as shown in fig. 1 to 4, an encoder suitable for a textile machine comprises a main body 1, a housing 2 buckled and fixed on the main body 1, a code disc seat 5, a code disc 9, a code disc pressing ring 6, a slit plate 10, a light-emitting plate 11 and a receiving circuit board 8 which are positioned in the housing 2;

also comprises a semi-hollow shaft 3; half hollow shaft 3 installs inside main part 1 through lower bearing 13 and upper portion bearing 12, and 5 covers of code wheel seat and puts and fix the 3 upper ends outsides of half hollow shaft in main part 1, and 5 bottom surfaces of code wheel seat and the 12 top surface contacts of upper portion bearing, and 5 bottom surfaces of code wheel seat lock upper portion bearing 12 promptly, and code wheel 9 is fixed to compress tightly on code wheel seat 5 through code wheel clamping ring 6 of installing on half hollow shaft 3, specifically is: the coded disc 9 and the coded disc pressing ring 6 are sequentially sleeved on the semi-hollow shaft 3 above the coded disc seat 5, and the coded disc 9 is fixedly pressed on the coded disc seat 5 through the coded disc pressing ring 6; the slit plate 10 and the light emitting plate 11 are both fixed on the main body 1, the receiving circuit board 8 is fixed on the main body 1 through the posts 4, the code wheel 9 is located between the receiving circuit board 8 and the slit plate 10, and the slit plate 10 is located right above the light emitting plate 11. The light emitted from the light emitting plate 11 can pass through the window of the slit plate 10 and the code channel of the code wheel 9, and is received by the receiving tube on the receiving plate 8.

The code disc seat 5 is sleeved outside the semi-hollow shaft 3 in the main body 1, is fixed on the semi-hollow shaft 3 through a set screw 7, and is locked with an upper bearing 12 at the bottom surface; the lower bearing 13 is locked by the shoulder at the lower part of the semi-hollow shaft 3.

The light emitting plate 11 is fixed in a groove 18 arranged at the top of the main body 1 through a screw, and the slit plate 10 is adhered to the upper end surface of the main body 1 and is positioned right above the light emitting plate 11; a plurality of columns 4 are arranged above the main body 1, screws penetrate through the columns 4 to screw the receiving circuit board 8 on the main body 1, and the coded disc 9 is located between the receiving circuit board 8 and the slit plate 10.

The locking ring 14 is arranged on the thin-wall slotted part of the semi-hollow shaft 3 below the main body 1.

The bottom surface of the main body 1 is provided with two

And positioning and mounting holes 17 with the depth of 8 mm.

The main body 1 and the outer rings of the lower bearing 13 and the upper bearing 12 are in transition fit, and the semi-hollow shaft 3 and the inner rings of the lower bearing 13 and the upper bearing 12 are also in transition fit.

A rubber outlet sleeve 15 is arranged above the side wall of the shell 2.

The inner diameter of the semi-hollow shaft 3 is

An outer diameter of

The whole height of the utility model is 45.5 mm.

The utility model discloses an encoder diameter is

The main part 1 is a hollow cylinder, a bearing hole is respectively formed in the upper portion and the lower portion of the main part 1, an upper bearing 12 is installed in the bearing hole in the upper portion of the main part, a lower bearing 13 is installed in the bearing hole in the lower portion of the main part, a groove 18 is further formed in the top surface of the main part 1, two positioning holes 17 are evenly distributed in the bottom surface of the main part 1, and a positioning groove 16 is further formed in the edge of the bottom surface of the main part 1.

The shell 2 is a cylinder body, is buckled on the main body 1 and is fixed on the main body 1 through a plurality of screws.

The upper part of the semi-hollow shaft 3 is

The middle lower part of the solid shaft is provided with an inner diameter of

A hollow shaft part, a semi-hollow shaft 3 is arranged at the lower part

And the locking ring 14 is installed on the slotted part of the shaft wall at the lower part of the step. The semi-hollow shaft 3 is connected with the main body 1 through a lower bearing 13 and an upper bearing 12 in sequence.

The code wheel seat 5 is arranged on the central shaft of the semi-hollow shaft 3

The code disc seat 5 is fixed on the semi-hollow shaft 3 by a set screw 7, the bottom surface of the code disc seat is locked with an upper bearing 12, and the semi-hollow shaft 3 is provided with a lower bearing

Locking the lower bearing 13.

The code wheel 9 is arranged on the code wheel seat 5 and passes through a central shaft arranged on the semi-hollow shaft 3

And part of the code wheel press ring 6 is pressed and fixed.

The light emitting panel 11 is fixed in the recess 18 on the body 1 by screws.

The slit plate 10 is attached to the upper end surface of the main body 1, and the slit plate 10 is located between the code wheel 9 and the light emitting plate 11 directly above the light emitting plate 11.

The receiving circuit board 8 is connected to the main body 1 by screws through the plurality of posts 4. The cable is threaded through a rubber outlet sleeve 15 and soldered to the receiving circuit board 8.

The main body 1 is in transition fit with the outer rings of the lower bearing 13 and the upper bearing 12, and the semi-hollow shaft 3 is in transition fit with the inner rings of the lower bearing 13 and the upper bearing 12.

The utility model discloses a theory of operation:

the utility model discloses a need not be with spring leaf flexible coupling's semi-hollow shaft's encoder, the user passes through locating hole 17 location encoder's mounting height, penetrates locating hole 17 through the locating pin and fixes a position and restrict the rotatory of encoder main part, because locating pin and locating hole 17 belong to bigger clearance fit, has played the effect of flexible coupling in rotatory process. The semi-hollow shaft 3 of the coder is locked and connected with a transmission shaft of a user by a locking ring 14, when the transmission shaft of the user rotates, the semi-hollow shaft 3 of the coder is driven to rotate, a code disc seat 5, a code disc 9 and a code disc pressing ring 6 are synchronously driven to rotate, light rays emitted by a light source on a luminous plate 11 penetrate through code channels (light and dark code channels which are arranged according to a certain rule on the code disc) of the rotating code disc 5 and slit windows on a slit plate 10 to be received by a receiving tube on a receiving circuit board 8, the receiving tube converts light and dark alternative optical signals into electric signals, and the electric signals are converted into codes through processing of a logic circuit formed by electronic devices and output in a rectangular wave mode, so that conversion of mechanical motion physical quantities (position, speed and acceleration).

The utility model discloses an installation mode only is applicable to the less encoder of pulse.

The utility model discloses according to user's installation space size, the motor shaft size of being connected with the encoder, the encoder that still requires to confirm to the pulse of encoder is half hollow structure, and 3 internal diameter phi 12mm of half hollow shaft, the degree of depth are 20mm, and encoder external diameter confirms at phi 40 mm. And determining a reasonable shaft outer diameter phi 15mm according to the shaft inner diameter and the encoder outer diameter, and determining and selecting the bearing model meeting the size requirements of all parts according to the shaft outer diameter. Because the size of the encoder shaft and the size of the outer diameter of the encoder are limited, the original structural type of the luminous tube and the photocell cannot be used, so that the luminous and the receiving are completed in a tube-to-tube mode, the size phi 6mm of the upper part of the shaft, the structural size of the code disc seat 5, the size and the position size of the code disc slit 10 are determined, and meanwhile, the installation of the luminous plate 11 and the receiving circuit board 8 is determined. Since the pulse required by the user is relatively small, in order to save space, the positioning hole 17 is directly formed on the main body 2 to fix the encoder. The encoder is directly installed on a motor shaft of a user by adopting a locking structure, and the overall height of the encoder is finally determined to be 45.5 mm.

Claims (5)

1. An encoder suitable for a textile machine comprises a main body (1), a shell (2) buckled and fixed on the main body (1), a code disc seat (5), a code disc (9), a code disc pressing ring (6), a slit plate (10), a light-emitting plate (11) and a receiving circuit board (8) which are positioned in the shell (2); it is characterized by also comprising a semi-hollow shaft (3); the semi-hollow shaft (3) is arranged in the main body (1) through a lower bearing (13) and an upper bearing (12), the code disc seat (5) is sleeved and fixed on the outer side of the upper end of the semi-hollow shaft (3), the bottom surface of the code disc seat (5) is in contact with the top surface of the upper bearing (12), and the code disc (9) is fixedly pressed on the code disc seat (5) through a code disc pressing ring (6) arranged on the semi-hollow shaft (3); the slit plate (10) and the light emitting plate (11) are fixed on the main body (1), the receiving circuit board (8) is fixed on the main body (1) through the upright post (4), the coded disc (9) is located between the receiving circuit board (8) and the slit plate (10), and the slit plate (10) is located above the light emitting plate (11).

2. An encoder as claimed in claim 1, characterised in that the light-emitting plate (11) is secured by screws in recesses (18) provided in the top of the body (1), the slit plate (10) being glued to the upper end face of the body (1); an upright post (4) is arranged above the main body (1), and a screw penetrates through the upright post (4) to screw the receiving circuit board (8) to be connected to the main body (1).

3. An encoder suitable for use on textile machines according to claim 2, characterized in that the semi-hollow shaft (3) has a locking ring (14) mounted on its portion located below the body (1).

4. An encoder suitable for use on a textile machine as claimed in claim 3 wherein the body (1) is provided with locating mounting holes (17) in its underside.

5. An encoder as claimed in claim 4, characterised in that a rubber outlet sleeve (15) is provided above the side wall of the housing (2).

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