Rotating mechanism capable of preventing stop shaking

Abstract

The utility model discloses a rotating mechanism capable of preventing stop shaking. The rotating mechanism comprises a central shaft, a bearing seat, a clamping block group and a copper sleeve group, wherein the clamping block group is arranged on the bearing seat and is sleeved on the periphery of the central shaft; and the copper sleeve group is clamped between the clamping block group and the central shaft. The central shaft is tightly held by the clamping block group and the copper sleeve, so that the copper sleeve generates friction force on the central shaft when gear transmission stops, a gap generated by gear transmission can be eliminated, and shaking of the central shaft is eliminated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rotating shaft anti-shaking technical field. BACKGROUND

[0002] At present, the rotating mechanism with the rotating central shaft is driven to rotate by the motor through the gear transmission or the synchronous pulley transmission. If the gear transmission is adopted, the reverse gap exists due to the large modulus and the large gap of the gear transmission itself. If the synchronous belt transmission is adopted, although the reverse gap does not exist, if the tensioning force is large, the mechanism rotation is difficult, and even the synchronous belt is broken due to the large load. If the gear transmission is gap-eliminated, the double-layer driven gear is installed, the two layers of driven gears are adjusted through the gear surface adjustment mechanism, the gear surface of the two layers of driven gears is fully contacted with the gear surface of the driving gear, and the gap-elimination purpose is achieved. However, the cost of the double-layer gear is high, and the adjustment is difficult, time-consuming and laborious, and the cost is high. CONTENT OF THE UTILITY MODEL

[0003] In view of the above defects, the utility model provides a rotating mechanism capable of preventing stop shaking, and the purpose is to avoid the reverse gap of the gear rotation from causing the rotating shaking of the central shaft without the two layers of driven gears.

[0004] To solve the above problems, the utility model adopts the following technical scheme:

[0005] A rotating mechanism capable of preventing stop shaking, comprising a central shaft, a driving device for driving the central shaft to rotate, a bearing seat for bearing the central shaft, a clamping block group installed on the bearing seat and sleeved on the periphery of the central shaft, and a copper sleeve group clamped between the clamping block group and the central shaft; the driving device comprises a motor, a driving gear coaxially connected with the output shaft of the motor, and a driven gear sleeved on the central shaft, and the driving gear is engaged with the driven gear; the clamping block group comprises two clamping blocks, and the inner side of each clamping block is a semicircular arc-shaped inner surface; the copper sleeve group comprises two semicircular arc-shaped copper sleeves, and the radius of the copper sleeve is the same as that of the inner surface of the clamping block; one copper sleeve is clamped between the inner surface of each clamping block and the central shaft; the two clamping blocks are connected through a fastener, and the two clamping blocks have a gap therebetween.

[0006] Further, the fastener is a screw, and the two clamping blocks are each provided with a threaded hole for the screw insertion, and the two clamping blocks are connected and tightly hold the central shaft through the screw.

[0007] Further, the bottom of each clamping block is fixed with the bearing seat.

[0008] Further, the bearing seat has two, and the upper and lower parts of the central shaft are respectively borne; one clamping block group is arranged on each bearing seat.

[0009] Further, the clamping block and the bearing seat are detachably fixed through screws.

[0010] Beneficial effects: compared with the prior art, the utility model discloses the same use gear drive to drive the driving shaft, and the utility model discloses the clamping of the copper bush to the center axle, so that the copper bush generates friction force to the center axle when gear drive stops, can eliminate the gap generated by gear drive, thereby eliminating the jitter of the center axle. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the overall structure section view schematic drawing of the rotating mechanism of the utility model.

[0012] Figure 2 It is the perspective view of the rotating mechanism of the utility model.

[0013] Figure 3 It is the perspective view of two clamping blocks in the utility model.

[0014] Figure 4 It is the perspective view of two copper bushes in the utility model. DETAILED DESCRIPTION

[0015] As Figure 1 and Figure 2 The utility model discloses a rotating mechanism of preventing stop jitter, including frame 5, center axle 2, the drive arrangement of driving center axle 2 rotation. The drive arrangement is gear drive mechanism, including the motor 4 of installing on frame 5, with the output shaft coaxial connection of motor 4 active gear 3, the driven gear 1 of setting in center axle 2. Active gear 3 is engaged with driven gear 1. Driven gear 1 is fixed on center axle 2 through the inside of the tensioning sleeve 11. Active gear 3 is connected with the output shaft of motor 4 through torsion limiter 10.

[0016] Still be equipped with two bearing seats, and the first bearing seat 6 bears the upper position of center axle 2, and the second bearing seat 7 bears the upper position of center axle 2. Every bearing seat all installs one clamping block group 8 and the copper bush group 9 of clamping in clamping block group 8 and center axle 2. The bottom of every clamping block is fixed with bearing seat through fixed screw.

[0017] Please combine Figure 3 and Figure 4As shown, the clamp block group 8 includes two clamp blocks, and the bottom of each clamp block is detachably fixed with the bearing seat by a fixing screw. The inner surface of each clamp block is semicircular arc-shaped; the copper sleeve group 9 includes two semicircular arc-shaped copper sleeves, and the radius of the copper sleeve is the same as that of the inner surface of the clamp block. Each copper sleeve is clamped between the inner surface of the clamp block and the central shaft. The two clamp blocks are connected by a screw (not shown) and have a gap between them. Threaded holes 12 are provided on the two clamp blocks for the screw to be inserted, so that the two clamp blocks are connected and tightly hold the central shaft 2, and the holding pressure of the two clamp blocks on the central shaft 2 can be fine-tuned by adjusting the torque of the screw. The copper sleeve group 9 is directly in contact with the central shaft 2 between the clamp block group 8 and the central shaft 2. When the central shaft 2 stops rotating, the frictional force generated by the tight holding of the copper sleeve group 9 on the central shaft can eliminate the backlash generated by the gear transmission, thereby eliminating the shaking of the central shaft 2. At the same time, since the copper sleeve itself has self-lubricating property, it does not need to be lubricated and will not cause great wear and tear, which is convenient for maintenance.

Claims

1. A rotating mechanism to prevent stop-shaking, characterized in that, The application relates to a center shaft (2), a driving device for driving the rotation of the center shaft, a bearing seat for bearing the center shaft (2), a clamping block group (8) arranged on the bearing seat and sleeved on the periphery of the center shaft (2), and a copper sleeve group (9) clamped between the clamping block group (8) and the center shaft (2). The driving device comprises a motor (4), a driving gear (3) coaxially connected with the output shaft of the motor, and a driven gear (1) sleeved on the center shaft (2), wherein the driving gear (3) is engaged with the driven gear (1). The clamping block group (8) comprises two clamping blocks, each of which has a semicircular arc-shaped inner surface; the copper sleeve group (9) comprises two semicircular arc-shaped copper sleeves, the radii of the copper sleeves are the same as the radii of the inner surfaces of the clamping blocks, each of the inner surfaces of the clamping blocks is clamped with a copper sleeve, the two clamping blocks are connected through fasteners, and the two clamping blocks have a gap. The fasteners are screws, the two clamping blocks are each provided with a threaded hole (12) for the insertion of the screw, and the two clamping blocks are connected through the screw and tightly hold the center shaft (2).

2. The anti-stop shake rotation mechanism according to claim 1, characterized by The bottom of each clamping block is fixed with the bearing seat.

3. The anti-stop shake rotation mechanism according to claim 2, characterized by The bearing seat has two, which respectively bear the upper and lower parts of the center shaft (2); each bearing seat is provided with a clamping block group (8).

4. The anti-stop shake rotation mechanism according to claim 3, characterized by The clamping block and the bearing seat are detachably fixed through screws.

5. The anti-stop shake rotation mechanism according to claim 4, characterized by ​

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