CN210214008U

CN210214008U - Reciprocating motion device

Info

Publication number: CN210214008U
Application number: CN201921050991.9U
Authority: CN
Inventors: Inventor Has Waived The Right To Be Mentioned The; 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-08
Filing date: 2019-07-08
Publication date: 2020-03-31
Anticipated expiration: 2029-07-08

Abstract

The utility model provides a reciprocating motion device, including main part support, drive wheel, drive belt, trailing arm, connecting piece, the sliding body, the slide rail, motor, control circuit board and shell, the utility model discloses with the flat ring-shaped motion mode of drive belt, turn into the high-speed reciprocating motion mode of sliding body through trailing arm and connecting piece, simultaneously, utilize flexible drive belt, trailing arm, elastic characteristic's slide rail, take the sliding body in sliding area and resistance district, restrained high-speed operation's noise, under the condition of same stroke, saved space and weight greatly, this scheme is low noise, small size, lightweight, low-cost high-speed reciprocating motion device.

Description

Reciprocating motion device

Technical Field

The utility model relates to a reciprocating motion device.

Background

The high-speed reciprocating mechanism in the prior art adopts a circular path plus a connecting rod to generate reciprocating motion, if a longer reciprocating distance is needed, the circular path mechanism occupies a larger space and has larger weight, the mechanism uses hard connection, and in the reciprocating motion process, the clearance of the hard connection causes continuous impact among all parts, so that the higher the reciprocating motion speed is, the higher the noise is.

Disclosure of Invention

In order to solve the problems, the utility model provides a high-speed reciprocating device with low noise, which adopts a flexible transmission belt to transmit power to a sliding body through a follower arm along a flat annular path, so that the sliding body generates reciprocating motion in a sliding rail with elastic characteristics; the flexible transmission belt is in flexible contact with the follower arm, so that impact noise in the motion process can be greatly reduced, and the slide rail with an opening inner hole and elastic characteristics is adopted, and the elastic characteristics of the slide rail enable the slide rail to be in close contact with the sliding body so as to eliminate impact; flat annular route contrast ring route simultaneously under the condition of same stroke, has saved space and weight greatly, especially in the reciprocating mechanism of high-speed long stroke, more can embody the utility model discloses an advantage.

In order to achieve the purpose, the utility model adopts the following technical proposal: a reciprocating motion device comprises a main body support, a driving wheel, a driving belt, a follower arm, a connecting piece, a sliding body, a sliding rail, a motor, a control circuit board and a shell, wherein the main body support, the driving wheel, a motor output shaft, the driving belt, the follower arm, the connecting piece, the sliding body and the sliding rail form a mechanical bin, a motor shell forms a motor bin, the control circuit board forms an electrical bin, the mechanical bin, the motor bin and the electrical bin are all arranged in the shell, wherein the output end of the sliding body in the mechanical bin is positioned outside the shell, the main body support isolates the mechanical bin from the motor bin, the main body support is provided with a motor mounting position and a sliding rail mounting position, the sliding rail comprises an opening inner hole, the sliding body is provided with a transmission area, a sliding area and a resistance area, the follower arm is provided with a groove and a fixing hole, the transmission belt is divided into an area A, an area B and an area Z in the width direction; the connection mode is as follows: the motor is arranged at a motor mounting position of the main body bracket, so that a shell of the motor is arranged in the motor bin, an output shaft of the motor is positioned in the mechanical bin, the slide rail is arranged at a slide rail mounting position of the main body bracket, so that the slide rail is arranged in the mechanical bin, an opening inner hole of the slide rail is matched with the sliding body, a transmission area of the sliding body is connected with a fixing hole of the follower arm through the connecting piece, a groove of the follower arm is connected with an area B of the transmission belt, the area A of the transmission belt is connected with the transmission wheel, so that the transmission belt forms a flexible flat annular motion path, the transmission wheel is connected with the output shaft of the motor, and the control circuit board is connected with a connecting terminal of the motor; the working process is as follows: the control circuit board drives a motor, an output shaft of the motor drives the area A of the transmission belt through the transmission wheel, so that the area A of the transmission belt and the area B of the transmission belt move along a flat annular path together, the follower arm is fixed in the area B of the transmission belt through the groove and performs flat annular motion along with the transmission belt, when the follower arm moves to the tangent position of the driving wheel and the driving belt, the follower arm starts to rotate at the position, the reversing is completed when the transmission wheel rotates to the next tangent position, then the transmission wheel enters a flat annular linear area to do linear motion, the process is repeated continuously along with the rotation of the transmission belt, namely, the follower arm drags the sliding body to reciprocate in the opening inner hole of the slide rail, the motion trail of the fixing hole of the follower arm is consistent with the direction of the central connecting line of the two driving wheels.

A reciprocating motion device, the said body support is used for fixing the said motor, said slide rail and said outer casing, the said body support includes the top surface, bottom surface, left side, right flank, the said top surface has mounting positions of said slide rail, the mounting position of the slide rail is used for fixing the said slide rail, the said slide rail is fixed from the said bottom surface by the screw, the said bottom surface has mounting positions of the motor, the position is used for installing the said motor, the said motor is fixed from the said top surface by the screw; the left surface be equipped with at least one left recess, set up at least one left mounting hole in the left recess, left recess be used for the location the shell, left mounting hole be used for fixing the shell, right flank be equipped with at least one right recess, set up at least one right mounting hole in the right recess, right recess be used for the location the shell, right mounting hole be used for fixing the shell, main part support or installation one motor and a driven shaft, or installation two the motor, the motor with the driven shaft connect respective drive wheel respectively.

A reciprocating motion device, the sliding body comprises a transmission area, a sliding area and a resistance area; the sliding region be located the sliding body surface, the form of sliding region is the plane, the sliding region with the slide rail contact, with the cooperation the sliding body be in the slide rail on the motion, the sliding body surface sets up one at least the sliding region, resistance district connect the sliding region end, resistance district constitute by the inclined plane that has the slope, be used for the slow speed reduction and the locking of sliding body to alleviate the inertia of sliding body to the impact noise of slide rail, the inside trompil of transmission district, through the connecting piece connect the fixed orifices of trailing arm.

A reciprocating motion device is characterized in that a sliding body is provided with a single output end or double output ends, and the output ends are provided with clamping grooves and screw holes so as to be connected with a dragging target.

A kind of reciprocating motion device, the said slide rail includes an opening bore, the inner wall of the said opening bore sets up the gyro wheel of three different angles at least, because the said opening bore has characteristic of elastic deformation, this characteristic makes the said gyro wheel of three different angles contact the said sliding body closely, thus limit the displacement outside the direction of motion of the said sliding body; at least one roller is in close contact with the plane of the sliding area, the close contact forms a linear contact line, and the linear characteristic of the contact line enables the arc path of the rotation of the sliding body not to pass smoothly, so that the sliding body is limited to rotate in the sliding rail, and the sliding body impacts the sliding rail in the movement process and the noise caused by the impact is eliminated.

A reciprocating device, the follower arm includes an inner post, a fixing hole, an outer post, a platform, a groove, the inner post and the outer post are arranged on the platform, the groove is formed by a gap between the inner post and the outer post, the transmission belt is arranged in the groove, the outer post is arranged on the outer side of the transmission belt and is tightly attached to the outer side face of the transmission belt, the inner post is arranged on the inner side of the transmission belt, the inner post is tightly attached to the inner side face of the transmission belt, the fixing hole penetrates through the inner post and the platform, the fixing hole is connected with the transmission area of the sliding body through the connecting piece, namely the follower arm is simultaneously connected with the transmission belt and the sliding body, when the transmission belt runs along a flat annular path, the follower arm runs to a flat annular semicircular area, the central line of the fixing hole is coincident with the central line of the driving wheel, and the follower arm rotates 180 degrees around the central line, namely the follower arm rotates 180 degrees around the connecting piece on the fixing hole, so that the reversing in the reciprocating motion is completed.

The follower arm and the transmission belt are integrated or split, when the follower arm and the transmission belt are split, the connection mode of the follower arm and the transmission belt is friction pressing, tooth meshing, hot melting, bonding, bolt connection or welding; when the follow-up arm and the transmission belt are integrated, the follow-up arm and the transmission belt are integrally formed.

A reciprocating motion device is characterized in that a follower arm is connected with a transmission area of a sliding body through a connecting piece to form a connecting point, the projection of the connecting point in the direction of a transmission belt is positioned in a flat ring surrounded by the transmission belt, the moving path of the connecting point is consistent with the direction of a central connecting line of two transmission wheels, and the connecting piece is either a pin or a screw.

A reciprocating device, the transmission belt is divided into three areas in the width direction: zone A, zone B, and zone Z; the area A is used for connecting the driving wheel to enable the driving wheel to form a flat ring shape, the flat ring shape is a closed curve formed by two semicircles and two straight lines, the area B is used for connecting the follower arm, and the working mode is as follows: the power of the driving wheel is transmitted to the driving belt B area through the driving belt A area, the driving belt B area drags the follower arm to move, the Z area is positioned between the driving belt A area and the driving belt B area, and the Z area is a working gap so as to avoid collision between an inner column of the follower arm and the driving wheel; the working area of the driving wheels is limited to the area A of the transmission belt, the driving wheels transmit power to the area A of the transmission belt in a meshing or friction mode, at least one of the driving wheels is a driving wheel, an inner column of the follower arm is in close contact with the inner side face of the transmission belt, the working area of the inner column is limited to the area B of the transmission belt, and an outer column is in close contact with the outer side face of the transmission belt.

A reciprocating motion device, control circuit board on have the pad to connect the binding post of motor, control circuit board on the pad be on a parallel with the axle center of motor, control circuit board be on a parallel with the axle center of motor.

The utility model has the advantages that: compared with the high-speed reciprocating motion mechanism in the prior art, the scheme converts a flat annular motion mode into a high-speed reciprocating motion mode, and suppresses noise of high-speed operation through the flexible transmission belt, the follower arm, the slide rail with elastic characteristics, and the slide body with the slide area and the resistance area; under the condition of the same stroke, the space and the weight are greatly saved, and the scheme is a high-speed reciprocating motion device with low noise, small volume, light weight and low cost.

Drawings

Fig. 1 is a schematic view of a main body bracket structure according to a preferred embodiment of the present invention.

Fig. 2 is a schematic view of a slide rail structure according to a preferred embodiment of the present invention.

Fig. 3 is a schematic view of a sliding body with two output ends according to a preferred embodiment of the present invention.

Fig. 4 is a schematic view of a single-output-end sliding body structure according to a preferred embodiment of the present invention.

Fig. 5 is a schematic view of a follower arm according to a preferred embodiment of the present invention.

Fig. 6 is a schematic view of a belt partition structure according to a preferred embodiment of the present invention.

Fig. 7 is an exploded view of the belt, follower arm, and slider assembly of the preferred embodiment of the present invention.

Fig. 8 is a schematic view of the assembly of the sliding body and the sliding rail of the dual output end according to the preferred embodiment of the present invention.

Fig. 9 is a schematic view of the assembly of the single-output-end sliding body and the sliding rail according to the preferred embodiment of the present invention.

Fig. 10 is a schematic structural diagram of the preferred embodiment of the present invention.

Description of reference numerals: 100 main body support, 101 top surface, 103 left side surface, 104 right side surface, 105 left groove, 106 left mounting hole, 107 right groove, 109 motor mounting position, 110 slide rail mounting position, 111 screw hole for mounting motor, 112 bottom surface, 200 slide rail, 201 opening inner hole, 202 roller, 203 roller, 204 roller, 205 mounting hole, 300 sliding body, 301 transmission area, 302 sliding area, 303 resistance area, 304 output end, 305 opening hole, 306 other output end, 308 slot, 309 screw hole, 400 follower arm, 401 platform, 402 inner column, 403 outer column, 404 groove, 405 fixing hole, 406 connecting piece, bearing 407, driving belt 500, 501A area, 502B area, 503Z area, inner side surface 504,

outer side surface

505, 600 shell, 701 driving wheel, 801 motor, 803 motor terminal block, 901 control circuit board.

Detailed Description

In order to facilitate understanding and practice of the invention, embodiments of the invention will now be described with reference to the accompanying drawings, which are provided as examples only.

The preferred embodiment of the present invention relates to a reciprocating motion device.

Fig. 1 is a schematic view of a main body support structure according to a preferred embodiment of the present invention, including: 101 top surface, 103 left side surface, 104 right side surface, 105 left groove, 106 left mounting hole, 107 right groove, 109 motor mounting position, 110 slide rail mounting position, 111 screw hole for mounting motor, 112 bottom surface.

As shown in fig. 1, the main body bracket is used for fixing a motor, a slide rail and a housing, and includes a top surface 101, a bottom surface 112, a left side surface 103 and a right side surface 104, the top surface 101 is provided with a slide rail mounting position 110, the slide rail mounting position is used for fixing the slide rail and is fixed from the bottom surface 112 side of the main body bracket by a screw, so that the slide rail is placed in the machinery compartment; a motor mounting position 109 is arranged on the bottom surface 112 of the main body bracket and is used for mounting a motor, the motor is fixed from the top surface 101 side through a screw hole 111 by a screw, a shell of the motor is placed in a motor bin, and an output shaft of the motor penetrates through the main body bracket and is positioned in a mechanical bin; the left side surface 103 is provided with three left grooves 105, each left groove is internally provided with a left mounting hole 106, the left groove 105 is used for positioning the shell, and the left mounting hole 106 is used for fixing the shell; the right side surface 104 is provided with three right grooves 107, each right groove is internally provided with a right mounting hole, the right groove 107 is used for positioning the shell, and the right mounting hole is used for fixing the shell. The utility model discloses main part support can be used to install two motors or one motor one from the driving wheel, each drive wheel of output shaft of motor.

Fig. 2 is a schematic view of a slide rail structure according to a preferred embodiment of the present invention, including: 201 opening inner hole, 202 roller, 203 roller, 204 roller, 205 mounting hole.

The slide rail is made of an elastic material, as shown in fig. 2, and comprises an opening inner hole 201, the inner wall of the opening inner hole 201 is provided with three

rollers

202, 203 and 204 with different angles, and due to the design of the opening and the elastic material of the slide rail, the opening inner hole 201 has the characteristic of elastic deformation, when the slide body is tightly matched with the three rollers with different angles, the elastic deformation enables the rollers with three different angles to be in close contact with the slide body from three different angles, so that the friction force cannot be excessively increased due to excessive compression of the slide body, and the close contact limits the displacement of the slide body in the non-movement direction; the roller 204 is used for being tightly attached to the sliding area plane of the sliding body, when the outer surface of the roller 204 is tightly contacted with the sliding area plane of the sliding body, the formed contact line is a straight line, the straight line characteristic of the contact line enables the arc path of the sliding body rotation not to pass smoothly, namely the straight line limits the sliding body to rotate outside the movement direction, so that the noise caused by the sliding body impacting the sliding rail in the movement process is eliminated, the sliding body is ensured to carry out smooth reciprocating movement, and the mounting hole 205 of the sliding rail is used for being connected with the mounting position of the sliding rail on the main body bracket, so that the sliding rail is arranged in the mechanical bin.

Fig. 3 is a schematic structural diagram of a sliding body with two output ends according to a preferred embodiment of the present invention, including: 301 drive zone, 302 sliding zone, 303 resistance zone, 304 output, 305 trompil, 306 another output, 308 draw-in groove, 309 screw hole.

As shown in fig. 3, the sliding body of this embodiment has dual output ends, and includes a transmission region 301, two sliding regions 302, two resistance regions 303, an output end 304, an opening 305, another output end 306, a slot 308, and a screw hole 309; the sliding area 302 is positioned on the surface of the sliding body and is a plane, the plane of the sliding area is used for contacting with a roller of the sliding rail so as to match the sliding body to move on the sliding rail, the resistance area 303 is positioned at the tail end of the sliding area, the resistance area 303 is formed by an inclined plane with a slope and is used for slow deceleration and stop of the sliding body so as to reduce impact noise of inertia of the sliding body on the sliding rail, the transmission area 301 is positioned at the top ends of the two sliding areas 302, an opening 305 is formed in the transmission area 301, the opening 305 is used for placing a bearing, the bearing is connected with a follower arm through a connecting piece, and the follower arm drags the sliding body to slide in the; the

output ends

304 and 306 are respectively provided with a clamping groove 308 and a screw hole 309 so as to connect and drag a target, a group of sliding area and resistance area are arranged in the embodiment, a plurality of groups of sliding areas and resistance areas with different angles can be arranged, and a plurality of different angles of the sliding areas correspond to a plurality of different angles of the roller in the sliding rail.

Fig. 4 is a schematic structural view of a single-output-end sliding body according to a preferred embodiment of the present invention, including: 301 drive zone, 302 sliding zone, 303 resistance zone, 304 output, 305 trompil, 308 draw-in groove, 309 screw hole.

As shown in fig. 4, compared with fig. 3, the sliding body of this embodiment is a single output end, and a sliding region 302 and a resistance region 303 are provided, and the output end is provided with a clamping groove 308 and a screw hole 309, which are not described herein any more, and this embodiment provides a set of sliding region and resistance region, and also can provide a plurality of sets of sliding regions and resistance regions at different angles, where a plurality of different angles correspond to a plurality of different angles of the roller in the sliding rail.

Fig. 5 is a schematic structural diagram of a follower arm according to a preferred embodiment of the present invention, including: 401 platform, 402 inner column, 403 outer column, 404 groove, 405 fixing hole.

As shown in fig. 5, the inner column 402 and the outer column 403 of the follower arm are arranged on the platform 401, the groove 404 is formed by a gap between the inner column 402 and the outer column 403, the groove 404 is used for connecting the transmission belt, the outer column 403 is positioned outside the transmission belt and closely attached to the outer side surface of the transmission belt, the working area of the outer column shown in the figure is the area B of the transmission belt, the length of the outer column 403 can be increased, and the areas a, B and Z of the transmission belt are simultaneously covered, so that the pressure of the outer column 403 on the transmission belt can be dispersed in the state, and the service life is prolonged; the inner column 402 is located inside the transmission belt, the inner column 402 is tightly attached to the inner side surface of the transmission belt, the working area of the inner column 402 is limited to the area B of the transmission belt, the fixing hole 405 penetrates through the inner column 402 and the platform 401, the fixing hole 405 is connected with the transmission area of the sliding body through a connecting piece, and the follower arm is connected with the transmission belt and the sliding body at the same time as described above.

Fig. 6 is a schematic view of a partitioned structure of the transmission belt according to the preferred embodiment of the present invention, including: zone 501A, zone 502B, zone 503Z, 400 follower arm, 402 follower arm inner post, 701 drive wheel, dashed line in the figure is a separate schematic of zone A, B, Z, and a section of the belt from the block view is omitted.

As shown in fig. 6, the belt is divided into three zones in the width direction: the driving device comprises an area A501, an area B502 and an area Z503, wherein the area A501 is used for connecting two driving wheels 701, so that the driving belt forms a flexible flat annular movement path, as shown in the figure, the flat annular movement path is a closed path and is formed by two semicircles and two straight lines, the two semicircles are located in the direction of a connecting line of centers of the driving wheels, the two straight lines are respectively connected with breakpoints of the two semicircles to form a closed path, and the positions where the straight lines are connected with the breakpoints of the semicircles are tangent positions of the; the area B502 is used for connecting a groove of the follower arm 400, the area B502 is in close contact with the inner column 402 of the follower arm, the working area of the transmission wheel 701 is limited to the area A501 of the transmission belt, and the working area of the inner column 402 of the follower arm is limited to the area B502 of the transmission belt; in the figure, two end faces of the driving wheel 701 are not provided with a baffle, and the vertical position of the driving belt is limited by the follower arm 400; the working mode is as follows: the power of the driving wheel 701 is transmitted to a driving belt B area 502 through a driving belt A area 501, the driving belt B area 502 drags the follower arm to move, a Z area 503 is located between the A area 501 and the B area 502, the Z area 503 is a working gap between the driving wheel 701 and the inner column 402 of the follower arm, and collision between the inner column 402 of the follower arm 400 and the driving wheel 701 is avoided; in this embodiment, the driving wheel 701 transmits power to the area a 501 of the driving belt through meshing or friction, when the groove of the follower arm runs to a semicircular area, that is, a tangent position of the driving belt and the driving wheel, the area B502 drags the groove of the follower arm to make semicircular track motion, that is, the groove of the follower arm rotates around the connecting piece, and when the groove of the follower arm runs to a next tangent position of the driving belt and the driving wheel, that is, the groove of the follower arm is separated from the semicircular area, the follower arm completes the action of direction conversion; then, the B area 502 drags the groove of the follower arm to enter the linear area for linear motion, and then the follower arm enters another semicircular area again to complete reversing, and the process is repeated to convert the flat annular motion of the transmission belt into the reciprocating motion of the sliding body.

Fig. 7 is an exploded view of the installation of the driving belt, the follower arm and the slider according to the preferred embodiment of the present invention, including: the transmission belt comprises a sliding body transmission area 301, an output end 304, an opening 305, another output end 306, a bearing 307, an inner column 402, an outer column 403, a fixing hole 405, a connecting piece 406, a bearing 407, a transmission belt 500, an inner side surface 504 and an outer side surface 505.

For ease of understanding, the description will now be made with reference to fig. 6 and 7.

As shown in fig. 6 and 7, the driving belt, the follower arm, and the slider are attached in the following manner: the driving belt B area 502 is arranged in a groove 404 formed by a gap between the inner column 402 and the outer column 403, the outer column 403 is positioned on the outer side of the driving belt 500 and is tightly attached to the outer side surface 505 of the driving belt, the outer column covers the driving belt B area 502 or covers the A area 501, the B area 502 and the Z area 503 at the same time, the inner column 402 of the driving belt is positioned on the inner side of the driving belt 500 and is tightly attached to the inner side surface 504 of the driving belt and only covers the B area 502 of the driving belt, and a fixing hole 405 penetrates through the inner column 402 and the platform; a bearing 307 and a bearing 407 are placed in an opening 305 of a transmission area of the sliding body, a connecting piece 406 penetrates through the bearing to connect the transmission area 301 of the sliding body with a fixing hole 405 of a follower arm, after connection, the follower arm can rotate around the connecting piece 406, theoretically, in a semicircular area of the transmission belt 500, the center line of the connecting piece 406 can be coincided with the center line of the transmission wheel, and in a linear area of the transmission belt 500, the center line of the connecting piece 406 can be coincided with the connecting line of the centers of the two transmission wheels; in this embodiment, the connecting member 406 is a screw, and the screw is connected with the fixing hole 405 of the follower arm by a thread, or may be changed into a pin as required, and is connected with the fixing hole 405 by tight fit; in this embodiment, the follower arm and the transmission belt are split, the connection mode of the follower arm and the transmission belt is tooth meshing, and can be changed into friction pressing, hot melting, bonding, bolt connection, welding and the like according to requirements, and the follower arm and the transmission belt can also be integrally formed.

As can be seen from fig. 6 and 7, the follower arm connects the transmission belt 500 and the sliding body at the same time, the movement locus of the central point of the fixing hole 405 of the follower arm is consistent with the direction of the connecting line of the centers of the two transmission wheels 701, the fixing hole 405 connects the transmission area 301 of the sliding body through the connecting piece 406 to form a connecting point, the projection of the connecting point in the direction of the transmission belt 500 is located in the flat ring surrounded by the transmission belt 500, and the movement path of the projection of the connecting point is theoretically overlapped with the connecting line of the centers of the two transmission wheels 701, when the transmission belt 500 runs along the flat ring path, the follower arm drags the sliding body to move along the transmission belt, when the follower arm runs to the position of the transmission wheels, the center line of the fixing hole 405 is overlapped with the center line of the transmission wheels, the follower arm rotates 180 degrees around the center line, that is the follower arm rotates 180 degrees around, in this way, the flat ring motion of the driving belt 500 is converted into the linear reciprocating motion of the slider.

Fig. 8 is a schematic view of the assembly of the sliding body and the sliding rail of the dual output end according to the preferred embodiment of the present invention, including: 200 sliding rails, 202 rollers, 203 rollers, 204 rollers, 301 transmission area, 302 sliding area, 303 resistance area, 304 output end, 305 opening hole, 306 another output end.

As shown in fig. 8, the sliding body has two sliding rail supports, the transmission area 301 of the sliding body is located between the two sliding rails, the sliding area 302 of the sliding body is two sections, the transmission area 301 is located between the two sliding bodies, the transmission area 301 has an opening 305 inside, the opening 305 is used for placing a bearing, the bearing is connected with a follower arm through a connecting piece, the follower arm drags the sliding body to slide in the opening bore of the sliding rail 200, the sliding area 302 is in contact with the roller 204 of the opening bore of the sliding rail 200, the sliding body moves on the sliding rail in a matching way, the inner wall of the opening bore is provided with three

rollers

202, 203, 204 with different angles, the opening bore has the characteristic of elastic deformation, which enables the rollers with three different angles to closely contact the sliding body with interference fit from three different angles, and can maintain small friction between the sliding rail and the sliding body, the elastic characteristic of the opening bore limits the displacement of the sliding body beyond the moving direction, the roller 204 is closely attached to the sliding area 302 of the sliding body, the contact line of the roller is a straight line, the sliding body rotates to be an arc line path, and the arc line path cannot smoothly pass through the straight line area, so that the rotation of the sliding body is limited, the accidental movement and impact of the sliding body are eliminated, the sliding body is ensured to perform smooth reciprocating movement, and the noise is reduced; the motion mode of the sliding body is as follows: when the sliding body does linear motion in the direction of the central line, the roller 202, the roller 203 and the roller 204 embrace the sliding body, the friction force between the roller and the roller causes the roller to rotate, the roller 204 slides through the sliding area 302 and runs to the resistance area 303 at the tail end of the sliding area 302, the resistance area 303 is composed of an inclined plane with slope, after the inclined plane contacts with the roller, the outer circumference of the sliding body is enlarged by the inclined plane, the roller provides larger supporting force, the direction of the supporting force is vertical to the direction of the inclined plane, it can be seen that the supporting force not only supports the sliding body, but also has a component force opposite to the motion direction, along with the deepening of the inclined plane, the deformation of the opening inner hole is enlarged, the component force in the opposite direction is gradually increased, thereby achieving the purpose of gradually decelerating the sliding body and reducing the impact noise of the inertia of the sliding body on; because the inner hole of the opening has the characteristic of elastic deformation, the distance between the roller 204 and the

rollers

202 and 203 is enlarged by the resistance area 303, and the characteristic ensures that the sliding body and the sliding rail still keep small friction force and move smoothly in the deceleration process; under the dragging of the follower arm (see fig. 7), the moving direction of the sliding body changes, and the sliding body makes a linear motion towards the direction of the other output end 306, and the moving process in this direction is the same as that in the direction of the output end 304, and is not described again here.

Fig. 9 is a schematic view of the assembly of the sliding body and the sliding rail of the single output end of the present invention, which includes: 202 roller, 203 roller, 204 roller, 301 transmission area, 302 sliding area, 303 resistance area, 304 output end, 305 opening.

In this embodiment, as shown in fig. 9, the sliding body is supported by two sliding rails, the driving region 301 of the sliding body is located outside the sliding rails, the sliding body is provided with a section of sliding region 302, the sliding body is provided with two resistance regions 303, the driving region 301 of the sliding body is located at the top end of the sliding body, and the driving region 301 is provided with an opening 305 therein, and the opening 305 is used for placing a bearing. Please refer to fig. 8 for the working process and the moving process of the sliding body, which are not described herein.

Fig. 10 is a schematic structural diagram of a preferred embodiment of the present invention, which includes: 100 main part support, 110 slide rail installation position, 200 slide rails, 300 sliding body, 301 transmission area, 302 sliding area, 303 resistance area, 400 follower arm, 406 connecting piece, 500 drive belt, 600 shell, 801 motor, 803 motor terminal and 901 control circuit board.

As shown in fig. 10, the connection method is: the main body bracket 100, the driving wheel, the driving belt 500, the follower arm 400, the connecting piece 406, the sliding body 300 and the sliding rail 200 form a mechanical bin; the shell parts of the two motors 801 form a motor bin, and the output shafts of the motors 801 penetrate through the main body bracket 100, are positioned in the mechanical bin and are connected with the driving wheels; the control circuit board 901 forms an electrical bin; the casing 600 is fixed on the main body bracket 100 through a left groove and a left mounting hole, a right groove and a right mounting hole on the main body bracket 100, the mechanical bin, the motor bin and the electrical bin are both located inside the casing 600, wherein two output ends of the sliding body 300 in the mechanical bin are located outside the casing, the motor 801 is installed at a motor installation position of the main body bracket 100 and is fixed from the top surface of the main body bracket 100 by screws, so that the shell of the motor 801 is arranged in the motor bin, the output shaft of the motor 801 is arranged in the mechanical bin, the sliding rail 200 is installed at a sliding rail installation position 110 of the main body bracket 100 and is fixed from the bottom surface of the main body bracket 100 by screws, so that the sliding rail 200 is arranged in the mechanical bin, the sliding body 300 passes through an opening inner hole of the sliding rail 200, a transmission area 301 of the sliding body 300 is connected with a fixing hole of the follower arm 400 through a connecting piece 406, a groove of the follower arm 400, The outer side surface is tightly attached, so that the follower arm 400 is fixed on the transmission belt 500, namely, the follower arm 400 is simultaneously connected with the sliding body 300 and the transmission belt 500; the follower arm 400 maintains its positioning in the moving direction by means of engagement or friction, and the follower arm 400 maintains its positioning in the vertical direction of the moving path by means of the restriction of the slider 300; the area A of the transmission belt 500 is connected with a transmission wheel, so that the transmission belt 500 forms a flexible flat annular motion path, the transmission wheel is connected with an output shaft of the motor 801, and the control circuit board 901 is connected with a connection terminal 803 of the motor.

As can be seen from fig. 10, the movement locus of the center line of the fixing hole of the follower arm 400 is consistent with the center connecting line of the two driving wheels, the fixing hole is connected with the driving area 301 of the sliding body 300 through the connecting piece 406 to form a connecting point, the projection of the connecting point in the direction of the driving belt 500 is located in the flat ring surrounded by the driving belt 500, and the movement path of the projection of the connecting point is coincident with the center connecting line of the two driving wheels.

The utility model discloses preferred embodiment's a reciprocating motion device's working process does: the control circuit board drives the motor 801 to run, the motor 801 drives the area A of the transmission belt through the transmission wheel, so that the area A of the transmission belt and the area B of the transmission belt jointly move along a flat annular path, the follower arm 400 connected with the area B drags the sliding body 300 to move along the transmission belt 500, when the follower arm 400 runs to a semicircular area of the flat annular path, namely the follower arm 400 runs to the position of the transmission wheel, the center line of the fixed hole is overlapped with the center line of the transmission wheel, the follower arm 400 rotates 180 degrees around the center line, namely the follower arm 400 rotates 180 degrees around the connecting piece 406 on the fixed hole, the reversing in the reciprocating motion is completed, then the follower arm enters a linear stage of the flat annular path, and the cycle is repeated, so that the flat annular motion of the transmission belt 500 is converted into the reciprocating motion of the sliding body 300, namely the sliding body 300 reciprocates in.

It is understood that various changes, modifications, substitutions and alterations can be made in the embodiments by those skilled in the art without departing from the principles and spirit of the present invention, for example, the main body support may be in the form of a flat plate or a folded plate, and the motor and the slide rail may be mounted and fixed by screws, slots, etc.; the sliding area of the sliding body can be more than one as required, and the connecting piece can be made of parts of prior art such as screws, pins and shafts, and therefore, the embodiment of the present invention is not limited thereby, and all the equivalent structures made by the contents of the specification and the drawings are utilized in other related technical fields, and the same principle is included in the patent protection scope of the present invention.

Claims

1. A reciprocating motion device is characterized by comprising a main body support, a driving wheel, a driving belt, a follower arm, a connecting piece, a sliding body, a sliding rail, a motor, a control circuit board and a shell, wherein the main body support, the driving wheel, the driving belt, the follower arm, the connecting piece, the sliding body and the sliding rail form a mechanical bin, the motor shell forms a motor bin, the control circuit board forms an electrical bin, the mechanical bin, the motor bin and the electrical bin are all arranged in the shell, the output end of the sliding body in the mechanical bin is positioned outside the shell, the main body support isolates the mechanical bin from the motor bin, the main body support is provided with a motor mounting position and a sliding rail mounting position, the sliding rail comprises an open inner hole, and the sliding body is provided with a driving area, a sliding area and a resistance area, the follow-up arm is provided with a groove and a fixing hole, and the transmission belt is divided into an area A, an area B and an area Z in the width direction;

the connection mode is as follows: the motor is arranged at a motor mounting position of the main body bracket, so that a shell of the motor is arranged in the motor bin, an output shaft of the motor is positioned in the mechanical bin, the slide rail is arranged at a slide rail mounting position of the main body bracket, so that the slide rail is arranged in the mechanical bin, an opening inner hole of the slide rail is matched with the sliding body, a transmission area of the sliding body is connected with a fixing hole of the follower arm through the connecting piece, a groove of the follower arm is connected with an area B of the transmission belt, the area A of the transmission belt is connected with the transmission wheel, so that the transmission belt forms a flexible flat annular motion path, the transmission wheel is connected with the output shaft of the motor, and the control circuit board is connected with a connecting terminal of the motor;

the working process is as follows: the motor drives the area A of the transmission belt through the transmission wheel, so that the area A of the transmission belt and the area B of the transmission belt move together along a flat annular path, the follower arm is fixed in the area B of the transmission belt through a groove and performs flat annular motion along with the transmission belt, when the follower arm moves to the tangent position of the driving wheel and the driving belt, the follower arm starts to rotate at the position, the reversing is completed when the driving wheel rotates to the next tangent position, then the follower arm enters a flat annular linear area to do linear motion, the process is repeated continuously along with the operation of the driving belt, namely, the follower arm drags the sliding body to reciprocate in the opening inner hole of the slide rail, the motion trail of the fixing hole of the follower arm is consistent with the direction of the central connecting line of the two driving wheels.

2. The reciprocating apparatus as claimed in claim 1, wherein the main body frame is used for fixing the motor, the slide rail and the housing, the main body frame comprises a top surface, a bottom surface, a left side surface and a right side surface, the top surface is provided with the slide rail mounting position for fixing the slide rail, the slide rail is fixed from the bottom surface by a screw, the bottom surface is provided with a motor mounting position for mounting the motor, the motor is fixed from the top surface by a screw, the left side surface is provided with at least one left groove, at least one left mounting hole is arranged in the left groove, the left groove is used for positioning the housing, the left mounting hole is used for fixing the housing, the right side surface is provided with at least one right groove, at least one right mounting hole is arranged in the right groove, the right groove is used for positioning the shell, the right mounting hole is used for fixing the shell, the main body support is provided with one motor and one driven shaft or two motors, and the motors and the driven shafts are respectively connected with respective driving wheels.

3. A reciprocating device as defined in claim 1 wherein said sliding body includes a driving area, a sliding area and a resistance area, said sliding area is located on the surface of said sliding body, said sliding area is in the form of a plane, said sliding area contacts with said slide rail to match the movement of said sliding body on said slide rail, at least one of said sliding area is located on the surface of said sliding body, said resistance area connects the end of said sliding area, said resistance area is formed by a slope for slow deceleration and stop of said sliding body to reduce the impact noise of the inertia of the sliding body on the slide rail, said driving area is opened inside, and said driving area is connected with the fixing hole of said follower arm through said connecting piece.

4. A reciprocating device as defined in claim 1 or 3 wherein said slide is either single or double output, said output being provided with a slot and screw hole.

5. A reciprocating device as defined in claim 1 wherein said slide track has an open bore with at least three rollers of different angles disposed on its inner wall, said open bore having resilient deformation characteristics which cause said three rollers of different angles to make intimate contact with said slide to limit displacement of said slide in a direction other than the direction of motion, and at least one of said rollers making intimate contact with said sliding surface which forms a linear contact line whose linear characteristics prevent the arcuate path of rotation of said slide from passing smoothly, thereby limiting rotation of said slide in said slide track.

6. A reciprocator as in claim 1 wherein the follower arm comprises an inner post, a mounting hole, an outer post, a land, a groove, the inner post and the outer post are disposed on the land, the groove is defined by a gap between the inner post and the outer post, the belt is disposed in the groove such that the outer post is disposed on an outer side of the belt and closely contacts an outer side of the belt, the inner post is disposed on an inner side of the belt and closely contacts an inner side of the belt, the mounting hole extends through the inner post and the land, the mounting hole connects the drive region of the slider via the connecting member, i.e., the follower arm connects both the belt and the slider when the belt travels along a flat loop path, when the follower arm moves to a semicircular area of a flat ring, the central line of the fixing hole is superposed with the central line of the driving wheel, and the follower arm rotates 180 degrees around the central line, namely the follower arm rotates 180 degrees around the connecting piece, so that the reversing in the reciprocating motion is completed.

7. A reciprocating device as defined in claim 1 or 6 wherein said follower arm is connected to the drive area of said slider body by said connecting member to form a joint, the projection of said joint in the direction of said drive belt is located within the flat ring enclosed by said drive belt, and the projection of the path of movement of said joint coincides with the line joining the centers of said two drive wheels, said connecting member being either a pin or a screw.

8. A reciprocating device as defined in claim 1 or 6 wherein said belt is divided into three zones in the width direction: the area A is used for connecting the driving wheel to enable the driving wheel to form a flat ring shape, the area B is used for connecting the follower arm, and the working mode is as follows: the power of the driving wheel is transmitted to the driving belt B area through the driving belt A area, the driving belt B area drags the follower arm to move, the Z area is positioned between the driving belt A area and the driving belt B area, and the Z area is a working gap so as to avoid collision between an inner column of the follower arm and the driving wheel; the working area of the driving wheels is limited to the area A of the transmission belt, the driving wheels transmit power to the area A of the transmission belt in a meshing or friction mode, at least one of the driving wheels is a driving wheel, the inner column of the follower arm is in close contact with the inner side of the transmission belt, and the working area of the inner column is limited to the area B of the transmission belt.

9. A reciprocating device as defined in claim 1 wherein said control circuit board has pads for connecting terminals of said motor, said pads being parallel to the axis of said motor and said control circuit board being parallel to the axis of said motor.