CN209781605U

CN209781605U - Worm chain transmission type speed reducing mechanism

Info

Publication number: CN209781605U
Application number: CN201920551950.1U
Authority: CN
Inventors: 张荣友; 朱伟华
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-23
Filing date: 2019-04-23
Publication date: 2019-12-13
Anticipated expiration: 2029-04-23

Abstract

the utility model discloses a worm chain transmission type speed reducing mechanism, which comprises a shell, a worm, a chain and a gear, wherein the worm is arranged at the upper part in the shell through the rotating fit of a power shaft, and one end of the power shaft extends out of the shell; the two gears are respectively connected in a shaft mode in the shell, the two gears are in transmission connection through a coiled chain, the upper side portion of the chain is in meshed fit connection with the worm, and one end of a shaft of at least one gear extends out of the shell; the shaft of the gear is perpendicular to the power shaft. The utility model relates to a rationally, simple structure, easy preparation, its frictional force is little, intensity is high, the manufacturing volume is less, the energy consumption is low, the maintenance is simple and convenient.

Description

Worm chain transmission type speed reducing mechanism

Technical Field

The utility model relates to a reduction gears, concretely relates to worm chain drive formula reduction gears.

background

At present, a reduction mechanism in the prior art mostly adopts a gear box structure, and has the defects or shortcomings of large friction force, large volume, large energy consumption, difficult maintenance, complicated manufacturing process, insufficient strength and the like.

Disclosure of Invention

The utility model aims at providing a worm chain drive formula reduction gears to the defect that prior art exists.

The technical scheme is as follows: the worm-chain transmission type speed reducing mechanism comprises a shell, a worm, a chain and a gear, wherein the worm is arranged at the upper part in the shell in a rotating fit mode through a power shaft, and one end of the power shaft extends out of the shell; the two gears are respectively connected in a shaft mode in the shell, the two gears are in transmission connection through a coiled chain, the upper side portion of the chain is in meshed fit connection with the worm, and one end of a shaft of at least one gear extends out of the shell; the shaft of the gear is perpendicular to the power shaft.

The power shaft is connected with the shell through a bearing; and the shaft of the gear is connected with the shell through a bearing.

The chain is a bicycle chain-shaped structure comprising an inner chain plate, an outer chain plate, a roller and a pin shaft, wherein the outer chain plate is in a concave structure, a vertical shaft is arranged on the plane of the concave structure, and a miniature bearing is fixed at the top of the vertical shaft.

Compared with the prior art, the utility model, have following advantage: reasonable design, simple structure, easy manufacture, small friction force, high strength, small manufacturing volume, low energy consumption and simple and convenient maintenance. The spiral driving force generated by the rotation of the worm stirs the miniature bearings on the uniformly arranged vertical shafts on the upper plane of the chain to make the chain move linearly, and the two gears form circulation through the coiled chain to drive the gears to run. The bearing force generated by the rotation of the worm is born by the miniature bearing, the vertical shaft and the bearing of the shell 1, so that the aim of reducing the friction force is fulfilled.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the chain structure of the present invention;

Fig. 3 is a schematic structural view of the middle and outer link plates of the chain of the present invention.

Detailed Description

Referring to fig. 1-3, a worm-chain transmission type speed reducing mechanism comprises a shell 1, a worm 2, a chain 3 and a gear 4, wherein the worm 2 is arranged at the upper part in the shell 1 in a rotating fit manner through a power shaft 5, and one end of the power shaft 5 extends out of the shell 1 and can be used for setting driving power; the two gears 4 are respectively connected in the shell 1 through shafts 6, the two gears 4 are in transmission connection through a coiled chain 3, the upper side part of the chain 3 is in meshed fit connection with the worm 2, and one end of the shaft 6 of at least one gear 4 extends out of the shell 1 and is used for connecting power output; the shaft 6 of the gear 4 and the power shaft 5 are arranged perpendicular to each other. The power shaft 5 is connected with the shell 1 through a bearing; the shaft 6 of the gear 4 is connected with the shell 1 through a bearing. The chain 3 is a bicycle chain structure comprising an inner chain plate 31, an outer chain plate 32, a roller 33 and a pin shaft 34, wherein the outer chain plate 32 is in a concave structure 321, a vertical shaft 322 is arranged on the plane of the concave structure, and a miniature bearing 323 is fixed at the top of the vertical shaft 322. The upper side of the chain 3 is in meshed fit connection with the worm 2, i.e. the micro bearing 323 just falls into the spiral groove of the worm 2.

When the motor runs, the power shaft 5 extending out of the shell 1 rotates, the power shaft 5 drives the worm 2 to rotate, the chain 3 moves along with the worm 2 under the matching of the spiral groove and the micro bearing 323, so that the gear 4 is driven to rotate, and the shaft 6 extending to the outer gear 4 of the shell 1 can obtain a rotating force with a large torque. The utility model discloses a worm rotates the spiral driving force that produces, stirs the miniature bearing 323 on the even vertical scroll 322 of planar arrangement on the chain 3, makes 3 linear motion of chain, and 3 formation circulation through the chain that coils between two gears 4 have driven the operation of gear 4. The bearing force generated by the rotation of the worm 2 is borne by the micro bearing 323, the vertical shaft 322 and the bearing of the housing 1.

Claims

1. Worm chain drive formula reduction gears, including casing, worm, chain and gear, its characterized in that: the worm is arranged at the upper part in the shell in a rotating fit mode through a power shaft, and one end of the power shaft extends out of the shell; the two gears are respectively connected in a shaft mode in the shell, the two gears are in transmission connection through a coiled chain, the upper side portion of the chain is in meshed fit connection with the worm, and one end of a shaft of at least one gear extends out of the shell; the shaft of the gear is perpendicular to the power shaft.

2. The worm-chain drive reduction mechanism according to claim 1, characterized in that: the power shaft is connected with the shell through a bearing; and the shaft of the gear is connected with the shell through a bearing.

3. The worm-chain drive reduction mechanism according to claim 1, characterized in that: the chain is a bicycle chain-shaped structure comprising an inner chain plate, an outer chain plate, a roller and a pin shaft, wherein the outer chain plate is in a concave structure, a vertical shaft is arranged on the plane of the concave structure, and a miniature bearing is fixed at the top of the vertical shaft.