CN218971811U

CN218971811U - Synchronous gearbox for changing angle difference between output shafts

Info

Publication number: CN218971811U
Application number: CN202223534383.XU
Authority: CN
Inventors: 钟杰; 吴春麟; 蒋彬; 钟元帅
Original assignee: Jinjiang Connsun Machine Co ltd
Current assignee: Jinjiang Connsun Machine Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-05-05
Anticipated expiration: 2032-12-28

Abstract

The utility model relates to the technical field of synchronous gearboxes, in particular to a synchronous gearbox for changing the angle difference between output shafts, which comprises a box body, a first helical gear, a first rotating shaft, a second helical gear, a second rotating shaft and an adjusting mechanism, wherein the first helical gear is arranged in the box body and is fixed on the first rotating shaft; the adjusting mechanism comprises a screw-nut assembly and a push block, wherein the push block is arranged on the screw-nut assembly and driven to move by the screw-nut assembly, and the push block is used for pushing the second bevel gear to move along the axial direction of the second rotating shaft, so that the angle difference of the circumferential relative position between the second rotating shaft and the first rotating shaft is adjusted.

Description

Synchronous gearbox for changing angle difference between output shafts

Technical Field

The utility model relates to the technical field of synchronous gearboxes, in particular to a synchronous gearbox for changing the angle difference between output shafts.

Background

A printing machine is a machine for applying a print to a textile fabric with a dye or pigment. In order to meet the requirements of people on beauty, double-sided printing is generated, namely, the two sides of the cloth are printed with the designs and the designs. When the double-sided printing is performed, the positions, shapes, sizes and distribution of patterns on the front side and the back side of the cloth are required to be completely aligned, otherwise, the patterns on the two sides are misplaced, so that the attractive effect of the cloth is reduced.

The existing equipment generally adopts the method that when the machine is stopped, the pattern correspondence is ensured through the angle adjustment of the two groups of printing rollers, and the machine needs to be repeatedly started for testing to verify the adjustment effect, so that the efficiency of the existing adjustment mode is lower, and the time spent for adjustment is longer. Secondly, the double-sided printing machine inevitably has accumulated errors in the continuous printing process, and when the accumulated errors are more, the printed patterns are misplaced, and the machine is stopped for adjustment. There is therefore a need for an apparatus that facilitates angular adjustment of the embossing rollers to retrofit existing double-sided embossing machines.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a synchronous gearbox for changing the angle difference between output shafts.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the synchronous gearbox for changing the angle difference between the output shafts comprises a box body, and further comprises a first bevel gear, a first rotating shaft, a second bevel gear, a second rotating shaft and an adjusting mechanism which are arranged in the box body, wherein the first bevel gear is fixed on the first rotating shaft, the second bevel gear is arranged on the second rotating shaft through a spline structure, so that the second bevel gear can move along the axis direction of the second rotating shaft, the tooth width of the first bevel gear is larger than that of the second bevel gear, and the second bevel gear is kept in a meshed state with the first bevel gear in the moving range;

the adjusting mechanism comprises a screw-nut assembly and a push block, wherein the push block is arranged on the screw-nut assembly and driven to move by the screw-nut assembly, and is used for pushing the second bevel gear to move along the axial direction of the second rotating shaft.

Further, an annular groove formed by recessing inwards along the circumferential direction is formed in the middle section of the second bevel gear in the width direction.

Further, the screw-nut assembly comprises a screw rod and a movable block, the screw rod is rotatably arranged at the lower end of the box body and is parallel to the second rotating shaft, the second rotating shaft is parallel to the first rotating shaft, the movable block is movably arranged on the screw rod, the push block is connected with the movable block, the push block is embedded in the annular groove, and the movable block drives the push block to move along the axis direction of the screw rod by rotating the screw rod.

Further, still include the gag lever post, the gag lever post mount is located the box lower extreme, and locates the lead screw top in parallel, the gag lever post runs through the ejector pad setting, and the restriction ejector pad can't take place to rotate.

Further, the wear-resisting block is fixedly arranged on the pushing block through the nested structure, and is embedded in the annular groove together with the pushing block.

Further, nested structure includes arc recess, arc lug, the middle section position has been seted up on the wear-resisting piece the arc recess, the middle section position is equipped with on the ejector pad the arc lug makes wear-resisting piece fixed mounting on the ejector pad through arc lug and the nested cooperation of arc recess, arc recess outer end adaptation is in the annular groove, and the restriction ejector pad can't take place to rotate.

Further, the thickness of the wear-resistant block is larger than that of the pushing block.

Further, the screw rod comprises a hand wheel, wherein the hand wheel is arranged at one end of the screw rod, and the hand wheel controls the screw rod to rotate.

Further, the rotary type screw driver further comprises a scale wheel, the scale wheel is rotatably sleeved on the screw rod and fixedly connected with the hand wheel, scale numbers are arranged on the scale wheel, and the scale wheel is driven to rotate through the hand wheel.

Further, the novel bevel gear further comprises a third rotating shaft, the first rotating shaft is arranged between the second rotating shaft and the third rotating shaft and is parallel to the second rotating shaft, and a third bevel gear is arranged on the third rotating shaft and is meshed with the first bevel gear.

As can be seen from the above description of the present utility model, compared with the prior art, the synchronous gearbox provided by the present utility model for changing the angle difference between output shafts has the following advantages:

the first rotating shaft is arranged to drive the first bevel gear to rotate, and the first bevel gear is meshed with the second bevel gear, so that the first rotating shaft and the second rotating shaft synchronously rotate; the second bevel gear is arranged on the second rotating shaft through the spline structure and has the function of enabling the second bevel gear to move along the axis direction along the spline structure in the rotating state of the second rotating shaft;

the gear width of the first helical gear is larger than that of the second helical gear, so that the second helical gear can always be meshed with the first helical gear in the process of moving along the axis of the second rotating shaft;

the adjusting mechanism is arranged to drive the push block to move through the screw-nut component, and the movement of the push block can push the rotating second helical gear to move along the axis direction of the second rotating shaft, so that the meshing position of the second helical gear and the first helical gear is changed through the movement of the second helical gear, the change of the meshing position can enable the second rotating shaft to change the relative position in the circumferential direction, and the angle difference between the first rotating shaft and the second rotating shaft is adjusted.

Drawings

FIG. 1 is a schematic diagram of a synchronous gearbox for varying the angular difference between output shafts according to the present utility model.

FIG. 2 is a schematic top view of a synchronous gearbox for varying the angular difference between output shafts according to the present utility model.

FIG. 3 is a schematic view of the adjusting mechanism of the present utility model.

The correspondence identified in the figure is as follows: 1. the gear comprises a first rotating shaft, 11, a first bevel gear, 2, a second rotating shaft, 21, a second bevel gear, 22, an annular groove, 23, a spline structure, 3, a third rotating shaft, 31, a third bevel gear, 4, an adjusting mechanism, 41, a screw nut assembly, 411, a screw, 412, a movable block, 42, a push block, 421, an arc-shaped lug, 43, a wear-resisting block, 431, an arc-shaped groove, 44, a limit rod, 45, a hand wheel, 46, a scale wheel and 5, and a box body.

Detailed Description

The utility model is further described below by means of specific embodiments.

Referring to fig. 1 to 3, a synchronous gearbox for changing an angle difference between output shafts includes a first rotating shaft 1, a second rotating shaft 2, a third rotating shaft 3, an adjusting mechanism 4, and a box 5.

In the first embodiment, the first helical gear 11 is fixed on the first rotating shaft 1, the second helical gear 21 is disposed on the second rotating shaft 2 by a spline structure 23, so that the second helical gear 21 can move along the axial direction of the second rotating shaft 2, the tooth width of the first helical gear 11 is larger than that of the second helical gear 21, the second helical gear 21 and the first helical gear 11 are kept in an engaged state in a moving range, the first rotating shaft 1 is a main driving shaft, the first rotating shaft 1 is driven to rotate by a motor, and the first printing roller and the second printing roller synchronously rotate by the engagement of the first helical gear 11 and the second helical gear 21. The second helical gear 21 is provided on the second rotating shaft 2 through the spline structure 23 such that the second helical gear 21 can move in the axial direction along the spline structure 23 in a state where the second rotating shaft 2 rotates.

The adjusting mechanism 4 comprises a screw-nut assembly 41 and a push block 42, the push block 42 is arranged on the screw-nut assembly 41 and is driven to move by the screw-nut assembly 41, the push block 42 is used for pushing the second helical gear 21 to move along the axis direction of the second rotating shaft 2, and due to the characteristic of the helical gears, the rotation speed difference between the first helical gear 11 and the second helical gear 12 can be caused in the process of changing the meshing position, so that the meshing position of the second helical gear 21 and the first helical gear 11 is changed to change the circumferential relative position between the second rotating shaft 2 and the first rotating shaft 1, and the angle difference between the first rotating shaft 1 and the second rotating shaft 2 is changed. The second helical gear 21 is provided with an annular groove 22 formed by recessing inwards along the circumferential direction at the middle section of the width direction, the push block 42 is embedded in the annular groove 22, and the push block 42 is embedded in the annular groove 22, so that the push block 42 can be abutted against two side walls in the annular groove 22 through the push block 42 in the process of controlling the push block 42 to move by the lead screw nut assembly 41, and the second helical gear 21 can be pushed to move bidirectionally.

The screw nut assembly 41 comprises a screw rod 411 and a movable block 412, the screw rod 411 is rotatably arranged at the lower end of the box body 5 and is parallel to the second rotating shaft 2, the second rotating shaft 2 is parallel to the first rotating shaft 1, the movable block 412 is movably arranged on the screw rod 411, the push block 42 is connected with the movable block 412, the push block 42 is embedded in the annular groove 22, and the movable block 412 is moved on the screw rod 411 by rotating the screw rod 411, so that the push block 42 is driven to move along the axial direction of the screw rod 411 by the movable block 412. The screw rod type rotary scale is characterized by further comprising a hand wheel 45 and a scale wheel 46, wherein the hand wheel 45 is arranged at one end of the screw rod, the hand wheel 45 controls the screw rod 411 to rotate, the scale wheel 46 is rotatably sleeved on the screw rod 411 and fixedly connected with the hand wheel 45, scale numbers are arranged on the scale wheel 46, and the scale wheel 46 is driven to rotate through the hand wheel 45. The screw rod 411 is rotated by manually rotating the hand wheel 45 and then rotating the scale wheel 46 by a corresponding angle according to the calculated required rotation angle, and the rotation of the screw rod 411 drives the movable block 412 to move as the push block 42, so that the moving distance of the second bevel gear 21 is changed, and the angle difference between the second rotating shaft 2 and the first rotating shaft 1 can be accurately changed. The screw 411 may also be controlled to rotate by a servo motor provided at one end of the hand wheel 45.

The limiting rod 44, the limiting rod 44 mount is located box 5 lower extreme, and locates the lead screw 411 top in parallel, the limiting rod 44 runs through the ejector pad 42 and sets up, and the restriction ejector pad 42 can't take place to rotate, drives movable block 412 when avoiding the lead screw 411 to rotate and winds the axis rotation of lead screw 411 and lead to ejector pad 42 to break away from annular groove 22.

The wear-resisting block 43, wear-resisting block 43 is fixed on push block 42 through being equipped with nested structure, and inlay together with push block 42 and locate in annular groove 22, because push block 42 inlays and locates in the annular groove 22, the thickness of wear-resisting block 43 is greater than the thickness of push block 42, so second helical gear 21 produces mutual friction with push block 42 under the circumstances of rotating, and the long-term wearing and tearing of push block 42 and annular groove 22 inner wall can lead to the damage, so set up a wear-resisting block 43 that wear resistance is good as to bear frictional loss with annular groove 22 inner wall, increase of service life.

The third rotating shaft 3, the first rotating shaft 1 is arranged between the second rotating shaft 2 and the third rotating shaft 3 and is parallel to each other, and the third rotating shaft 3 is provided with a third bevel gear 31 and is meshed with the first bevel gear 11.

In the second embodiment, the nesting structure includes an arc groove 431 and an arc protrusion 421, the arc groove 431 is provided at the middle section of the wear-resistant block 43, the arc protrusion 421 is provided at the middle section of the push block 42, the wear-resistant block 43 is fixedly mounted on the push block 42 by nesting cooperation of the arc protrusion 421 and the arc groove 431, and the outer end of the arc groove 431 is adapted to the annular groove 22 to limit the push block 42 from rotating. The wear-resistant block 43 can be clamped on the annular groove 22 when being embedded in the annular groove 22 through the arc-shaped structure of the wear-resistant block 43, and the push block 42 is prevented from driving the wear-resistant block 43 to be separated from the annular groove 22 under the condition that the screw rod 411 rotates due to the structural arrangement of the arc-shaped structure and the annular groove 22; the second embodiment differs from the first embodiment in that the manner in which the push block 42 is restricted from rotating is different.

The working principle of the synchronous gearbox for changing the angle difference between the output shafts is as follows:

taking the double-sided embossing process of the double-sided embossing machine as an example, a first embossing roller and a first embossing roller are arranged on the double-sided embossing machine, the first rotating shaft 1 is in transmission connection with the first embossing roller, the second rotating shaft 2 is connected with the second embossing roller, and the first embossing roller and the second embossing roller can synchronously rotate through the meshing arrangement of the first bevel gear 11 and the second bevel gear 21;

when the printed patterns of the first printing roller and the second printing roller are misplaced, the relative angle between the two misplaced patterns in the circumferential direction is calculated by a calculation method, the hand wheel 45 is slowly rotated by the scale numbers of the scale wheel 46, so that the screw rod 411 rotates around the axis of the hand wheel, the movable block 412 can be driven to move by the rotation of the screw rod 411, the push block 42 is arranged on the movable block 412, the screw rod 411 rotates to drive the push block 42 to move along the axis direction of the screw rod 411, the movement of the push block 42 can push the second bevel gear 21 to move along the axis of the second rotating shaft 2 under the condition of keeping the meshing with the first bevel gear 11, the meshing position of the second bevel gear 21 and the first bevel gear 11 is changed, the change of the meshing position can change the relative angle between the second rotating shaft 2 and the first rotating shaft 1 in the circumferential direction under the condition of rotating the bevel gear due to the characteristics of the bevel gears, and the angle between the second printing roller can rotate to the pattern of the first printing roller in the circumferential direction corresponding to the position when the hand wheel 45 rotates to the required angle.

The foregoing is merely one specific embodiment of the present utility model, but the design concept of the present utility model is not limited thereto, and any insubstantial modification of the present utility model by using the concept shall belong to the behavior of infringement of the protection scope of the present utility model.

Claims

1. The utility model provides a change synchronous gear box of angle difference between output shaft, includes box, its characterized in that: the first bevel gear is fixed on the first rotating shaft, the second bevel gear is arranged on the second rotating shaft through a spline structure, so that the second bevel gear can move along the axis direction of the second rotating shaft, the tooth width of the first bevel gear is larger than that of the second bevel gear, and the second bevel gear is kept in an engaged state with the first bevel gear in a moving range;

2. A synchronous gearbox for varying the angular difference between output shafts as claimed in claim 1, wherein: the second bevel gear is provided with an annular groove which is formed by recessing inwards along the circumferential direction at the middle section position in the width direction.

3. A synchronous gearbox for varying the angular difference between output shafts as claimed in claim 2, wherein: the screw nut assembly comprises a screw rod and a movable block, the screw rod is rotatably arranged at the lower end of the box body and is parallel to the second rotating shaft, the second rotating shaft is parallel to the first rotating shaft, the movable block is movably arranged on the screw rod, the push block is connected with the movable block, the push block is embedded in the annular groove, and the movable block drives the push block to move along the axis direction of the screw rod by rotating the screw rod.

4. A synchronous gearbox for varying the angular difference between output shafts as claimed in claim 3, wherein: still include the gag lever post, the box lower extreme is located to the gag lever post mount, and locates the lead screw top in parallel, the gag lever post runs through the ejector pad setting, and the restriction ejector pad can't take place to rotate.

5. A synchronous gearbox for varying the angular difference between output shafts as claimed in claim 2, wherein: the wear-resisting block is fixedly arranged on the pushing block through the nested structure, and is embedded in the annular groove together with the pushing block.

6. A synchronous gearbox for varying the angular difference between output shafts as defined in claim 5 wherein: the nested structure comprises an arc-shaped groove and an arc-shaped protruding block, the arc-shaped groove is formed in the middle section position on the wear-resistant block, the arc-shaped protruding block is arranged in the middle section position on the pushing block, the wear-resistant block is fixedly mounted on the pushing block through nesting cooperation of the arc-shaped protruding block and the arc-shaped groove, the outer end of the arc-shaped groove is adapted to the annular groove, and the pushing block is limited from rotating.

7. A synchronous gearbox for varying the angular difference between output shafts as defined in claim 5 wherein: the thickness of the wear-resisting block is larger than that of the pushing block.

8. A synchronous gearbox for varying the angular difference between output shafts as claimed in claim 2, wherein: the screw rod is characterized by further comprising a hand wheel, wherein the hand wheel is arranged at one end of the screw rod, and the hand wheel controls the screw rod to rotate.

9. A synchronous gearbox for varying the angular difference between output shafts as defined in claim 8 wherein: the scale wheel is rotatably sleeved on the screw rod and fixedly connected with the hand wheel, scale numbers are arranged on the scale wheel, and the scale wheel is driven to rotate through the hand wheel.

10. A synchronous gearbox for varying the angular difference between output shafts as claimed in claim 1, wherein: the novel bevel gear is characterized by further comprising a third rotating shaft, wherein the first rotating shaft is arranged between the second rotating shaft and the third rotating shaft and is parallel to the second rotating shaft, and a third bevel gear is arranged on the third rotating shaft and meshed with the first bevel gear.