RU2819472C1 - Drive - Google Patents

Abstract

FIELD: transportation.

SUBSTANCE: device relates to transport systems and can be used for reciprocating movement of goods, parts of lifting mechanisms, machines, etc. Drive comprises a toothed chain power pair of sprockets 1, 2, fixed on shafts 3, 4, endless power chain 5 forming loops 6, 7, one of which is power 6, and engaged with power pair of sprockets 1, 2, chain power bypass unit 8, and gear pair 9, 10, transmitting torque through shafts 3, 4. Gear ratio of gear chain power pair of sprockets 1, 2 and gear pair 9, 10, transmitting torque, is not equal to one. Drive has a housing with load-bearing elements 11, 12, in which shafts 3, 4 are fixed through bearings 13. Gear chain power pair of sprockets 1, 2 is located between power elements 11, 12 of housing, and toothed pair 9, 10 transmitting the torque is located outside power elements 11, 12 of the housing. Shafts 3, 4 are located from 0° up to 90° relative to power loop force vector 14.

EFFECT: improved repairability and reduced material consumption.

7 cl, 4 dwg

Description

Technical field

The proposed device relates to the field of transport systems, in particular, to differential mechanisms, and can be used for reciprocating movement of various objects, for example, cargo, parts of lifting mechanisms, working bodies of manipulators, parts of machine tools, etc.

State of the art

The following can be considered as analogues of lifting devices:

UK patent No. 15040 “Improvements in Blocks or Hoisting Gear” according to IPC B66D 3/12 op. 09/28/1910;

UK patent No. 28215 “Improvement in Differential Hoisting and Lowering Apparatus” according to IPC B66D 3/12 op. 01/14/1913;

UK patent No. 167648 “Improvement in Differential Pulley Blocks” according to IPC B66D 3/12 op. 08/18/1921;

a.s. USSR for invention No. 1477668 “Tal” according to IPC B66D 3/12 op. 05/07/1989;

RF patent for invention No. 2009047 “Tal” according to IPC B66D 3/12 op. 03/15/1994;

RF patent for invention No. 2021971 “Tal” according to IPC B66D 3/12 op. October 30, 1994;

RF patent for invention No. 2075194 “Tal” according to IPC B66D 3/12 op. 10.30.1997;

RF patent for invention No. 2075195 “Tal” according to IPC B66D 3/12 op. 10.30.1997;

patent application of the People's Republic of China No. 104512829 according to IPC B66D 3/12 op. 04/15/2015

RF patent for utility model No. 184417 “Mounting block” according to IPC B66D 3/12 op. October 24, 2018;

RF patent for utility model No. 187922 “Mounting block” according to IPC B66D 3/12 op. 03/22/2019;

RF patent for utility model No. 188266 “Mounting block” according to IPC B66D 3/12 op. 04/04/2019;

RF patent for utility model No. 188281 “Mounting block” according to IPC B66D 3/12 op. 04/04/2019

The following can be considered as analogues of reciprocating movement mechanisms:

RF patent for invention No. 2075429 “Reciprocating movement mechanism” according to IPC B66C 11/12 op. 03/20/1997;

RF patent for invention No. 2083469 “Reciprocating movement mechanism” according to IPC B66C 11/12 op. 07/10/1997

The disadvantages of the above-described devices include reduced maintainability and increased material consumption of the structure.

The closest analogue to the proposed invention can be considered the RF patent for invention No. 2075194 “Tal” according to IPC B66D 3/12. op. 10.30.1997

The disadvantages of the closest analogue of the device include reduced maintainability and increased material consumption of the structure.

Disclosure of the Invention

The objective of the invention is to improve the design of a differential drive.

Technical results - increased maintainability and reduced material consumption of the structure.

The location of the load loop between the power parts of the housing makes it possible to reduce the material consumption of the drive, and the placement of the part of the mechanism that transmits torque behind the power part of the housing provides easy access to this part of the mechanism, which increases the maintainability of the drive.

Technical results are achieved in that the drive contains a toothed chain power pair of sprockets mounted on shafts, an endless power chain forming at least two loops, at least one of which is a power loop, and meshes with the said power pair of sprockets , at least one chain power bypass unit, and a gear pair transmitting torque through said shafts, the gear ratio of said gear chain power pair of sprockets and a gear pair transmitting torque is not equal to unity, a housing with power elements in which through the bearings are fixed to the mentioned shafts, the mentioned gear chain power pair of sprockets is located between the mentioned power elements of the housing, and the mentioned gear pair transmitting torque is located outside the mentioned power elements of the housing, the mentioned shafts are located from 0 to 90 degrees relative to the force vector of the mentioned power loop.

In a differential drive, a gear pair transmitting torque can be made in the form of gears.

In a differential drive, a gear pair transmitting torque can be made in the form of a chain transmission.

In a differential drive, the gears that transmit torque can be supplemented with an idler gear.

In a differential drive, the torque-transmitting chain drive may include at least one bypass sprocket.

In a differential drive, the second loop of the endless power chain may contain at least one bypass sprocket.

The differential drive may include at least one additional chain bypass unit.

Brief description of drawings

In fig. Figure 1 shows a diagram of a differential drive with a gear pair that transmits torque in the form of a chain transmission and the shafts are located 90 degrees relative to the force vector of the power loop.

In fig. 2 shows a diagram of a differential drive with a gear pair transmitting torque in the form of gears and located in the direction of the force vector of the power loop and an additional bypass unit on the second loop of the endless power circuit.

In fig. Figure 3 shows a diagram of a differential drive with a gear pair with a parasitic gear and a shaft arrangement of 90 degrees relative to the force vector of the power loop.

In fig. 4 shows a diagram of a differential drive with a gear pair transmitting torque in the form of a chain transmission with a bypass sprocket, with a bypass sprocket for an endless power chain and a shaft arrangement between 0 and 90 degrees relative to the force vector of the power loop.

Implementation of inventions

The drive contains a toothed chain power pair of sprockets 1 and 2, mounted on shafts 3 and 4, an endless power chain 5, forming two power loops 6 and a second 7, power chain 5 engages with power sprockets 1 and 2, a chain power bypass block 8, gear pair 9 and 10, transmitting torque through shafts 3 and 4, gear ratio of the gear chain power pair of sprockets 1 and 2 and gear pair 9 and 10, transmitting torque, is not equal to one, housing with power elements 11 and 12, in which shafts 3 and 4 are secured through bearings 13, a toothed chain power pair of sprockets 1 and 2 is located between the power elements of the housing 11 and 12, and a gear pair 9 and 10 transmitting torque is located outside the mentioned power elements of the housing 11 and 12. Shafts 3 and 4 can be located from 0 to 90 degrees relative to the force vector 14 of the power loop 6. In the embodiment of the gear pair 9 and 10, which transmits torque through the shafts 3 and 4, in the form of a chain transmission, the sprockets 9 and 10 are connected by a chain 15. In the embodiment of the gear pair 9 and 10, transmitting torque through shafts 3 and 4, a parasitic gear 16 can be used in the form of gears. In the embodiment of the gear pair 9 and 10, transmitting torque through shafts 3 and 4, in the form chain transmission, a bypass sprocket 17 can be used for the chain 15. In the embodiment of the drive with the shafts 3 and 4 located between 0 and 90 degrees relative to the force vector 14 of the power loop 6 of the chain 5, a bypass sprocket 18 can be used for the chain 5. On one of the shafts 3 or 4 and on the shaft 19 of the power bypass unit 8 a seat for applying torque can be made.

Drive operation. Torque is applied to the seat of one of the shafts 3 or 4 or 19. Through the chain 5, sprockets 1 and 2, shafts 3 and 4, gear pair 9 and 10, the drive mechanism is driven into rotation. Due to the difference from the unit of the gear ratio of sprockets 1 and 2 and the gear pair 9 and 10, loops 6 and 7 of chains 5 change length - when the length of, for example, loop 6 is reduced, the length of loop 7 increases, respectively, when the torque is reversed, the length of the loop increases 6 and shorten loop length 7.

Claims (7)

1. A drive containing a toothed chain power pair of sprockets mounted on shafts, an endless power chain forming at least two loops, at least one of which is a power loop, and engaging with said power pair of sprockets, at least , one chain power bypass unit, and a gear pair transmitting torque through the mentioned shafts, the gear ratio of the mentioned gear chain power pair of sprockets and the gear pair transmitting torque is not equal to unity, a housing with power elements in which the mentioned shafts are fixed through bearings , characterized in that the said gear chain power pair of sprockets is located between the mentioned power elements of the housing, and the mentioned gear pair transmitting torque is located outside the mentioned power elements of the housing, the mentioned shafts are located from 0 to 90 degrees relative to the force vector of the mentioned power loop. 2. The drive according to claim 1, characterized in that the gear pair transmitting torque is gears. 3. The drive according to claim 1, characterized in that the gear pair transmitting torque is a chain drive. 4. The drive according to claim 2, characterized in that the gears transmitting torque are supplemented with a parasitic gear. 5. The drive according to claim 3, characterized in that the chain transmission transmitting torque contains at least one bypass sprocket. 6. The drive according to claim 1, characterized in that the second loop of the endless power circuit contains at least one bypass sprocket. 7. The drive according to claim 1, characterized in that it contains at least one additional chain bypass unit.