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CN-121973094-A - Low-abrasion sand roller machine stable in lifting

CN121973094ACN 121973094 ACN121973094 ACN 121973094ACN-121973094-A

Abstract

The invention relates to the technical field of sand roller machines, in particular to a low-abrasion sand roller machine which comprises a bracket, wherein a motor and a transmission shaft are arranged on the bracket, the motor and the transmission shaft are connected through a transmission mechanism, a driven shaft downwards passes through the bracket and stretches into a reduction gearbox body, an eccentric wheel, a nested cycloid wheel and a cycloid driven wheel are arranged at the lower end of the driven shaft, at least two bulges are arranged below the cycloid driven wheel, an up-and-down fluctuation slideway is arranged in the reduction gearbox body, the reduction gearbox body and the eccentric wheel, the nested cycloid wheel and the cycloid driven wheel mechanism in the gearbox body are arranged in the reduction gearbox body, when the driven shaft rotates, the eccentric wheel is driven to rotate, the cycloid wheel is driven to roll along the inner teeth of the reduction gearbox body through nested sliding fit, the driven shaft rotates for one circle, and the cycloid driven wheel is driven to rotate through the fit of a through hole and a short column, so that the cycloid pin gear reducer plays a role of the reduction gearbox, the fluctuation effect is better, and the abrasion is reduced.

Inventors

  • SUN GAOQIAN
  • YANG ZHAOGUO
  • DAI HAO

Assignees

  • 盐城宝鼎电动工具有限公司

Dates

Publication Date
20260505
Application Date
20260228

Claims (6)

  1. 1. The utility model provides a steady low abrasion sand roller machine goes up and down, its characterized in that includes support (1), motor (2) are installed to one side of support (1), and driven shaft (3) are installed to the opposite side, driven shaft (3) are parallel with the output shaft of electrode, driven shaft (3) can slide from top to bottom along its length direction, be provided with on support (1) and be used for driving from driven shaft (3) decurrent spring (4), connect through drive mechanism (5) between motor (2) and driven shaft (3), sand roller (6) are installed to the top detachable of driven shaft (3), install reduction gearbox (7) on support (1), driven shaft (3) downwards pass support (1) and stretch into reduction gearbox (7), the lower extreme fixed mounting of driven shaft (3) has eccentric wheel (8), the outer slip cap of eccentric wheel (8) is equipped with nested (9), the inner wall of reduction gearbox (7) is provided with and is meshed with internal tooth wheel (10), be provided with cycloid wheel (10) and is provided with cycloid wheel (10) on driven wheel (7), cycloid is provided with a plurality of through-holes (11) on the driven wheel (10) and is provided with cycloid (10) and is stretched into in the through-hole, the cycloid driven wheel (11) can rotate around the axis of the driven shaft (3), at least two bulges (1101) are arranged below the cycloid driven wheel (11), and a slideway (702) for supporting the bulges (1101) and controlling the bulges (1101) to undulate up and down is arranged in the reduction gearbox body (7).
  2. 2. The low-wear sand roller machine with stable lifting and descending according to claim 1, wherein two protrusions (1101) are arranged, the radial distances from the two protrusions (1101) to the rotation axis are inconsistent, two slide ways (702) are arranged, the whole slide way is in the shape of two inclined elliptical rings, and the height difference between the highest position and the lowest position of the two slide ways (702) is consistent.
  3. 3. The low-wear sand roller machine with stable lifting and descending performance according to claim 1, characterized in that the cross section of the contact surface of the slideway (702) and the bulge (1101) is in a concave arc shape, and the cross section of the contact surface of the bulge (1101) is in a matched downward convex arc shape.
  4. 4. The low-abrasion sand roller machine with stable lifting and descending according to claim 1 is characterized in that the driven shaft (3) and the cycloid driven wheel (11) are rotatably connected through a bearing.
  5. 5. The low-abrasion sand roller machine with stable lifting and descending according to claim 1, wherein a driving wheel (501) is arranged on an output shaft of the motor (2), a driven wheel (502) is arranged on the driven shaft (3), and the driving wheel (501) is connected with the driven wheel (502) through a synchronous belt.
  6. 6. A smooth-going low-wear sand roller machine as claimed in claim 5, characterized in that the width of the driving wheel (501) is not smaller than the width of the driven wheel (502) plus the stroke of the driven shaft (3) moving up and down.

Description

Low-abrasion sand roller machine stable in lifting Technical Field The invention relates to the technical field of sand roller machines, in particular to a low-abrasion sand roller machine with stable lifting. Background The sand roller machine is the common equipment that is used for polishing timber, among the prior art, and patent CN211193493U is used for the reciprocal elevating system of grinder, and the position that driving pulley and driven pulley are connected all has concave-convex structure, and at the rotation in-process, concave-convex structure of driving pulley and concave-convex structure of driven pulley mutually support, accomplish reciprocating motion from top to bottom, and the work piece receives axial polishing again when receiving radial polishing, has improved work efficiency under dual polishing and has also improved polishing quality. However, in the running process, two larger driven wheels are needed to realize, so that the size is increased, the two driven wheels are mutually rubbed through the concave-convex structure, the abrasion is serious for a long time, and the maintenance is inconvenient. Disclosure of Invention The invention solves the problems that the driven wheel of the sand roller machine in the prior art is large in abrasion, and the maintenance is unchanged, so that the low-abrasion sand roller machine with stable lifting is provided. The invention is realized by the following technical scheme that the low-abrasion sand roller machine with stable lifting comprises a bracket, wherein one side of the bracket is provided with a motor, the other side of the bracket is provided with a driven shaft, the driven shaft is parallel to an output shaft of an electrode, the driven shaft can slide up and down along the length direction of the driven shaft, the bracket is provided with a spring for driving the driven shaft to move downwards, therefore, under the condition of no external force, the driven shaft can be in a low position, the motor is connected with the driven shaft through a transmission mechanism, the motor drives the driven shaft to rotate, the top of the driven shaft is detachably provided with a sand roller, the sand roller can be replaced with various specifications, the bracket is provided with a reduction box body, the driven shaft downwards passes through the bracket and stretches into the reduction box body, the lower end of the driven shaft is fixedly provided with an eccentric wheel, the outer sliding sleeve of the eccentric wheel is provided with a nested cycloid wheel, the nested sleeve is provided with a cycloid wheel, the inner wall of the reduction box body is provided with inner teeth meshed with the cycloid gear, the number of teeth of the inner teeth of the reduction box body is one more than that of teeth of the cycloid gear, so that the cycloid gear rolls in the reduction box body for one circle, the cycloid gear rotates for 360 degrees/the number of teeth, a plurality of through holes are formed in the cycloid gear, a cycloid driven wheel is arranged below the cycloid gear, a plurality of short columns extend into the through holes of the cycloid gear, the diameter of the through holes is larger than that of the short columns, the cycloid gear rotates eccentrically and rotates with the driven shaft, the diameter of the through holes is larger than that of the short columns, the cycloid gear can effectively drive the cycloid driven wheel to rotate at all positions without being blocked, the cycloid driven wheel can rotate around the axis of the driven shaft, at least two bulges are arranged below the cycloid driven wheel, the cycloidal driven wheel can be prevented from overturning by more than two bulges, the cycloidal driven wheel is supported to be stable, a slide way for supporting the bulges and controlling the bulges to be fluctuated up and down is arranged in the reduction box body, a special cycloidal pin wheel speed reducer is formed by the reduction box body and eccentric wheels, nesting and cycloidal wheels in the box body, the cycloidal driven wheel drives the eccentric wheels to rotate when the driven shaft rotates, the cycloidal wheels are driven to roll along the inner teeth of the reduction box body through nesting sliding fit, the driven shaft rotates for one circle, the cycloidal wheels rotate for one tooth, the cycloidal driven wheel is driven to rotate through matching of the through holes and the short columns, the reduction effect is achieved, at least two bulges are arranged at the bottom of the cycloidal driven wheel, the purpose of moving the driven shaft up and down is achieved, and the sand roller automatically moves up and down during polishing, so that polishing uniformity is improved. Further, two protrusions are arranged, the radial distances from the two protrusions to the rotation axis are inconsistent, two slide ways are arranged, the whole slide way is in the shape of two inclined elliptical rings, and the he