CN203488634U - Torque increasing chain - Google Patents

Abstract

The utility model relates to the technical field of mechanical transmission devices, in particular to a twist-increasing chain in the process of mechanical transmission. It is characterized by including multiple connected inner chain links and outer chain links, each inner chain link includes two inner chain pieces, each outer chain link includes two outer chain pieces, and three inner chain pieces and outer chain links There is a pin hole at each top corner, and a short pin shaft is arranged in the pin hole, and the long pin shaft at the bottom of the inner chain link is connected with the two pin holes at the bottom edge of the adjacent outer chain link. It is an equilateral triangle structure, the two pin shafts at the bottom of the chain link are only used for connection, and the pin shaft at the top corner of the chain link uses the principle of leverage to drive the follower to work and increase the torque. The device can be widely used in transmission machinery.

Description

Torsion chain

technical field

The utility model relates to the technical field of mechanical transmission devices, in particular to a chain for increasing torque during the mechanical transmission process.

Background technique

As an important mechanical basic part, the chain is widely used in various fields of the national economy. Because the chain drive has good performance whether it is used for power transmission or material transportation, lifting of heavy objects and traction of workpieces, the mechanical engineering community has reached a consensus on the irreplaceable functions of chain drive. The chain in the prior art adopts strip chain pieces, and the pin shaft plays the role of connecting and driving the chain links. Since the pin shaft and the chain teeth are in direct contact, there is no effect of increasing the torsion.

Contents of the invention

The purpose of the utility model is to avoid the defect that the prior art cannot achieve the effect of increasing the twist and provide a twist increasing chain, which effectively solves the problems existing in the prior art.

In order to achieve the above purpose, the technical solution adopted by the utility model is: the twist-increasing chain is characterized in that it includes a plurality of connected inner chain links and outer chain links, each inner chain link includes two inner chain pieces, each Each outer chain link includes two outer chain pieces, and each of the three top corners of the inner chain piece and the outer chain link is provided with a pin hole, and the two pin holes at the bottom of the inner chain link are respectively provided with a second long pin shaft. and the third long pin shaft, a short pin shaft is arranged at the pin hole at the top corner of the inner chain link, a short roller is arranged on the second long pin shaft, the third long pin shaft and the short pin shaft, and the second long pin shaft at the bottom edge of the inner chain link The second long pin shaft and the third long pin shaft are respectively connected with two pin holes at the bottom edge of the adjacent outer chain link, the pin hole at the top corner of the outer chain link is provided with the first long pin shaft, and the There are long rollers.

The distance between every two pin holes on the inner chain sheet and the outer chain link is equal to the pitch of the chain.

The inner chain link and the outer chain link are equilateral triangle structures, the two pin shafts at the bottom of the inner chain link and the outer chain link only play a connecting role, and the pin shafts at the top corners of the inner chain link and the outer chain link use The principle of leverage drives the follower to work and increases the torque.

The beneficial effects of the utility model are: each chain link of the twist-enhancing chain is an equilateral triangle structure, and the two pin shafts at the bottom of the chain link only play a connecting role, while the pin shaft at the top corner of the chain link uses The principle of leverage drives the follower to work and increases the torque. The device can be widely used in transmission machinery.

Description of drawings

Fig. 1 is a schematic diagram of the shaft side structure of the utility model;

Fig. 2 is a working principle diagram when the utility model is implemented.

In the figure: 1. Bearing; 2. Drive sprocket; 3. Increased twist chain; 3-1. Pin hole; 3-2. First long pin shaft; 3-3. Long roller; 3-4. Outer chain piece ;3-5. Second long pin; 3-6. Short pin; 3-7. Inner chain; 3-8. Short roller; 3-9. Third long pin; 4. Driven sprocket .

Detailed ways

The principles and features of the present utility model are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the utility model, and are not used to limit the scope of the utility model.

As shown in Fig. 1, the described torsion-increasing chain is characterized in that it includes a plurality of connected inner chain links and outer chain links, each inner chain link includes two inner chain pieces 3-7, and each outer chain link includes The two outer chain pieces 3-4, the three corners of the inner chain piece and the outer chain link are each provided with a pin hole 3-1, and the two pin holes on the bottom edge of the inner chain link are respectively provided with a second long pin Shaft 3-5 and the 3rd long pin shaft 3-9, the pin hole place of inner chain link vertices is provided with short pin shaft 3-6, the second long pin shaft 3-5, the 3rd long pin shaft 3-9 and The short pin shaft 3-6 is provided with a short cylinder 3-8, and the second long pin shaft 3-5 and the third long pin shaft 3-9 of the bottom edge of the inner chain link are respectively connected with the bottom edge of the adjacent outer chain link. The two pin holes are connected, and the pin hole at the top corner of the outer chain link is provided with a first long pin shaft 3-2, and a long cylinder 3-3 is installed on the first long pin shaft 3-2.

Further, the distance between every two pin holes on the inner chain piece and the outer chain link is equal to the pitch of the chain.

Further, the inner chain link and the outer chain link are both equilateral triangle structures, and the two pin shafts on the bottom of the inner chain link and the outer chain link only play a connecting role, and the pins at the top corners of the inner chain link and the outer chain link The shaft uses the principle of leverage to drive the follower to work to increase the torque.

As shown in Figure 2, when the twist-increasing chain is in use, a drive sprocket 2 is installed at one end of the torsion-increasing chain 3, and is driven to work through the drive sprocket 2, and the other end of the torsion-increasing chain 3 is wound around a supporting bearing 1, the pin shafts at the top of the internal and external chain links of the twist-increasing chain 3 drive the driven sprocket 4 to work through the rollers.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (3)

1. A torsion-increasing chain is characterized in that it includes a plurality of connected inner chain links and outer chain links, each inner chain link includes two inner chain pieces, each outer chain link includes two outer chain pieces, and the inner chain There is a pin hole at the three top corners of the chain link and the outer chain link, and the second long pin shaft and the third long pin shaft are respectively arranged at the two pin holes at the bottom edge of the inner chain link, and the top corner of the inner chain link The pin hole is provided with a short pin shaft, and the second long pin shaft, the third long pin shaft and the short pin shaft are provided with short rollers, and the second long pin shaft and the third long pin shaft at the bottom edge of the inner chain link are respectively aligned with the corresponding The two pin holes at the bottom edge of the adjacent outer chain link are connected, and the pin hole at the top corner of the outer chain link is provided with a first long pin shaft, and a long roller is installed on the long pin shaft. 2. The twist-increasing chain according to claim 1, characterized in that: the distance between every two pin holes on the inner chain piece and the outer chain link is equal to the pitch of the chain. 3. The torsion-increasing chain according to claim 1 or 2, characterized in that: the inner chain link and the outer chain link are both equilateral triangle structures, and the two pins at the bottom of the inner chain link and the outer chain link It only acts as a connection, and the pin shafts at the top corners of the inner chain link and the outer chain link use the principle of leverage to drive the follower to work and increase the torque.

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