CN211894817U

CN211894817U - Intermittent directional slewing device

Info

Publication number: CN211894817U
Application number: CN202020278893.7U
Authority: CN
Inventors: 庞雨花
Original assignee: Changzhou Vocational Institute of Mechatronic Technology
Current assignee: Changzhou Vocational Institute of Mechatronic Technology
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2020-11-10
Anticipated expiration: 2030-03-09

Abstract

The utility model provides an intermittent type directional slewer, the device's toothless drive wheel and two gyration support arms are fixed in the drive shaft, the drive block is fixed between two gyration support arms, the one end of hookup piece is fixed between two gyration support arms, the hookup piece other end links firmly with the output shaft of cylinder, the oscillating cylinder is constituteed with the fixed bolster is articulated to the cylinder afterbody, the roller transversely is equipped with in the chute that the drive block bottom surface declined from the left side, when toothless drive wheel counter-clockwise motion, the little spring that blocks by the apron promotes the knock pin and pushes the roller to the chute right-hand, the roller moves right maximum limit and is adjusted by the screw, and lock by the nut. The utility model provides a ratchet drive frequently especially when high-speed motion, the noise is big, and the aggravation of wearing and tearing, can produce the slippage phenomenon to and adopt motor program control, need adopt step-by-step or servo motor frequently to start and stop, the problem that control cost is high and life-span is low replaces manual assembly, has improved work production efficiency, has reduced manufacturing cost.

Description

Intermittent directional slewing device

Technical Field

The utility model relates to an intermittent type directional slewer belongs to mechanical transmission technical field.

Background

In the material conveying of wineries and pharmaceutical factories, intermittent quantitative conveying is sometimes needed, namely, a conveying belt conveys materials for a fixed distance each time. The mechanism is usually adopted in which a pawl on a reciprocating mechanism drives a ratchet wheel to rotate in a directional manner so as to drive a conveying belt to move. In the prior art, ratchet transmission is widely applied to intermittent and directional transmission as a traditional technology, but when the ratchet mechanism moves frequently, particularly at high speed, the ratchet mechanism has high noise, is accelerated in abrasion, can generate a slipping phenomenon, influences further application of the mechanism, adopts motor program control, needs a stepping or servo motor to start and stop frequently, and has high control cost and short service life.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the problem that mentions among the above-mentioned background art, provide a directional slewer of intermittent type, it will replace manual assembly, has improved work production efficiency, has reduced manufacturing cost, has alleviateed workman's intensity of labour.

The utility model provides an intermittent directional slewing device, which comprises a driving shaft, a toothless driving wheel, two slewing support arms, a driving block, a pin shaft, a connecting block, a cylinder, a fixed support, a key, a cover plate, a small spring, a knock pin, a pin roller, a nut and a screw, wherein the lower ends of the toothless driving wheel and the two slewing support arms are fixed on the driving shaft by the key, the two slewing support arms are positioned at two sides of the toothless driving wheel, the driving block is fixed between the two slewing support arms, one end of the connecting block is fixed between the upper ends of the two slewing support arms by the pin shaft, the other end of the connecting block is fixedly connected with an output shaft of the cylinder, the tail part of the cylinder is hinged with the fixed support to form a swinging cylinder, the bottom surface of the driving block is provided with a chute, the chute is inclined downwards from left, the pin roller is transversely arranged in the chute, the cover plate is covered in front of the small spring, when the cylinder extends leftwards to further push the gearless driving wheel to move anticlockwise, the small spring blocked by the cover plate pushes the ejector pin to push the roller to the right side of the chute with slightly smaller depth, a nut and a screw are installed behind the driving block, and the maximum range of the roller moving rightwards is adjusted by the screw and is locked by the nut.

Preferably, the intermittent orientation rotary device further comprises a screw and a pin between the two arms, and the driving block is fixed between the two rotary arms through the screw and the pin between the two arms.

Preferably, the inclination of the chute is 5 to 7 °

The beneficial effects of intermittent type directional slewer do:

1. the intermittent directional slewing device of the utility model can replace the original ratchet wheel and pawl mechanism, and the processing cost is low;

2. the intermittent directional slewing device of the utility model avoids the phenomena of noise, abrasion and slippage of the ratchet mechanism during frequent and high-speed movement;

3. directional slewer of intermittent type, this mechanism and cylinder or pneumatic cylinder hookup can demonstrate into the directional rotary motion of the short intermittent type of output, its speed and intermittent time adjust conveniently, different beat requirements on the adaptable assembly line.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In the drawings:

fig. 1 is a perspective view of an intermittent directional slewing device according to the present invention;

fig. 2 is a cross-sectional view of an intermittent directional slewing device according to the present invention;

FIG. 3 is a sectional view of the intermittent directional slewing device according to the present invention;

fig. 4 is a perspective view of a driving block of the intermittent directional slewing device according to the present invention;

in the figure: 1-a drive shaft; 2-a toothless transmission wheel; 3-rotating the support arm; 4-a drive block; 5-screws are used between the arms; 6-a pin; 7-a pin shaft; 8-a coupling block; 9-a cylinder; 10-fixing a bracket; an 11-bond; 12-a cover plate; 13-small spring; 14-knock pin; 15-a roller; 16-a nut; 17-screw, where the arrow indicates the direction of movement.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings:

the first embodiment is as follows: the present embodiment is explained with reference to fig. 1 to 4. The intermittent directional slewing device of the embodiment comprises a driving shaft 1, a toothless driving wheel 2, two slewing support arms 3, a driving block 4, a pin shaft 7, a connecting block 8, a cylinder 9, a fixed support 10, a key 11, a cover plate 12, a small spring 13, a top pin 14, a roller 15, a nut 16 and a screw 17, wherein the lower ends of the toothless driving wheel 2 and the two slewing support arms 3 are fixed on the driving shaft 1 through the key 11, the two slewing support arms 3 are positioned at two sides of the toothless driving wheel 2, the driving block 4 is fixed between the two slewing support arms 3, one end of the connecting block 8 is fixed between the upper ends of the two slewing support arms 3 through the pin shaft 7, the other end of the connecting block 8 is fixedly connected with an output shaft of the cylinder 9, the tail part of the cylinder 9 is hinged with the fixed support 10 to form a swinging cylinder, a chute is arranged on the bottom surface of the driving, the chute is internally and transversely provided with a roller 15, a pushing top pin 14 is arranged in front of the roller 15, a small spring 13 is arranged in front of the pushing top pin 14, the cover plate 12 covers the small spring 13, when the cylinder 9 extends leftwards to push the toothless transmission wheel 2 to move anticlockwise, the small spring 13 blocked by the cover plate 12 pushes the top pin 14 to push the roller 15 to the right of the chute with slightly smaller depth, so as to drive the toothless transmission wheel 2 and the driving shaft 1 to rotate for an angle in the anticlockwise direction, the rear part of the driving block 4 is provided with a nut 16 and a screw 17, and the maximum range of the rightward movement of the roller 15 is adjusted by the screw 17 and is locked by the nut 16.

The air cylinder 9 can also be a hydraulic cylinder or an electric push rod, and the electric push rod is connected with a motor to generate thrust. The output shaft of the cylinder 9 is a piston rod.

The intermittent orientation rotary device also comprises a screw 5 and a pin 6 used between two arms, and the driving block 4 is fixed between the two rotary supporting arms 3 through the screw 5 and the pin 6 used between the two arms.

The inclination of the chute is 5-7 degrees.

The specific operation process and the working principle of the intermittent directional slewing device are as follows:

when the cylinder 9 extends leftwards to push, the roller 15 rolls rightwards with slightly smaller depth of the chute due to the action of friction force and is clamped between the driving block 4 and the toothless driving wheel 2, and then the toothless driving wheel 2 and the driving shaft 1 are driven to rotate for an angle in the anticlockwise direction. When the cylinder 9 retracts rightwards, the roller 15 rolls to the left with slightly larger depth of the chute due to the action of friction force, the roller 15 is loosened, the driving shaft 1 stops rotating, and for the conveying device, a conveying value is completed every time the driving shaft rotates for one angle, if a certain conveying amount is required to be completed, the cylinder 9 can do continuous telescopic movement for a plurality of times, and the telescopic movement can be controlled by a program.

The bottom surface of the driving block 4 is provided with a groove with an inclination of 5-7 degrees, a roller 15 is embedded in the inclined groove, the roller 15 is propped to the right side of the driving block 4 by a small spring 13, friction driving is carried out by utilizing the principle of inclined wedge, and when the air cylinder 9 retracts rightwards, the roller 15 is separated because the depth of the groove is increased.

The continuous reciprocating action of the cylinder 9 is utilized to enable the toothless transmission wheel 2 to do intermittent directional rotary motion, the speed and the intermittent time of the toothless transmission wheel are controlled by a program to control the action of the cylinder 2, the adjustment is convenient, the cost is low, and the toothless transmission wheel is also suitable for different beat adjustment requirements on a production line.

The above-mentioned embodiments further explain the objects, technical solutions and advantages of the present invention in detail. It should be understood that the above description is only exemplary of the present invention, and is not intended to limit the present invention, and that any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention may be made without departing from the scope of the present invention.

Claims

1. An intermittent directional slewing device is characterized by comprising a driving shaft (1), a toothless driving wheel (2), two slewing support arms (3), a driving block (4), a pin shaft (7), a connecting block (8), a cylinder (9), a fixed bracket (10), a key (11), a cover plate (12), a small spring (13), a jacking pin (14), a roller (15), a nut (16) and a screw (17),

the lower ends of the toothless transmission wheel (2) and the two rotary support arms (3) are fixed on the driving shaft (1) by a key (11), the two rotary support arms (3) are positioned at two sides of the toothless transmission wheel (2), the driving block (4) is fixed between the two rotary support arms (3), one end of the connecting block (8) is fixed between the upper ends of the two rotary support arms (3) by a pin shaft (7), the other end of the connecting block (8) is fixedly connected with the output shaft of the cylinder (9), the tail part of the cylinder (9) is hinged with the fixed support (10) to form a swing type cylinder,

the bottom surface of the driving block (4) is provided with a chute, the chute inclines downwards from the left side, a roller (15) is transversely arranged in the chute, a pushing ejector pin (14) is arranged in front of the roller (15), a small spring (13) is arranged in front of the pushing ejector pin (14), the cover plate (12) covers the front of the small spring (13), when the air cylinder (9) extends leftwards and further pushes the toothless driving wheel (2) to move anticlockwise, the small spring (13) blocked by the cover plate (12) pushes the ejector pin (14) to push the roller (15) to the right side of the chute, a nut (16) and a screw (17) are arranged behind the driving block (4), and the maximum range of the rightward movement of the roller (15) is adjusted by the screw (17) and locked by the nut (16).

2. An intermittent orienting slewing device according to claim 1, characterized in that the intermittent orienting slewing device further comprises two inter-arm screws (5) and pins (6), and the driving block (4) is fixed between the two slewing arms (3) by the two inter-arm screws (5) and pins (6).

3. An intermittent orienting carousel as in claim 1 wherein the slope of the chutes is between 5 ° and 7 °.