CN209743501U

CN209743501U - Amplitude-variable speed reducer with flange cover body

Info

Publication number: CN209743501U
Application number: CN201920422921.5U
Authority: CN
Inventors: 杨进林; 罗华德; 闵岗
Original assignee: Sichuan Climbing Technology Co Ltd
Current assignee: Sichuan Climbing Technology Co Ltd
Priority date: 2019-04-01
Filing date: 2019-04-01
Publication date: 2019-12-06
Anticipated expiration: 2029-04-01

Abstract

The utility model discloses a flanged cover body's change width of cloth reduction gear, including ring flange, axle sleeve, safety cover, reduction gear housing and pivot and gear, the pivot in the reduction gear housing passes through the gear and forms L shape speed reduction overall arrangement, and compact structure reduces the complete machine space and occupies, adopts reduction gear housing and motor whole to pass through safety cover sealing connection motor effect, avoids the pivot junction to appear intaking or brings the problem of potential safety hazard for operating personnel.

Description

Amplitude-variable speed reducer with flange cover body

Technical Field

The utility model belongs to building and engineering machine tool field, concretely relates to apply to the variable amplitude reduction gear of a flanged cover body on tower crane.

Background

The tower crane plays an important role in modern building construction in China, and has the main structural characteristics that all mechanisms are installed on a balance arm, and due to the limitation of ledge space and construction places, all the mechanisms are required to have the characteristics of compact structure, safety, reliability, reasonable layout, high cost performance and the like, and along with the continuous increase of the height of a building, a hoisting mechanism of the tower crane is required to have the characteristics of large winding drums, large rope capacity and the like.

Present tower crane luffing mechanism now mainly divide into two kinds, and one of them is motor + resilient coupling + push rod stopper + reduction gear + reel, mechanism characteristics are firstly that the capacity of reel is big, and secondly adopt push rod stopper to use safety, convenience when maintaining, thirdly reduction gear resilient coupling protecting against shock, transship, and the transmission is steady, and it is convenient to maintain, and the security is high, but the length of whole mechanism is very long, and the structure is not compact, to installing the restriction on the tower crane, extravagant space.

Moreover, the connection between the existing motor and the reducer is relatively exposed, the connection part is not provided with a protective cover body, safety hidden dangers are caused to operating personnel or maintainers, the operation is carried out at a high altitude, rain and snow appear under the influence of the weather environment, rainwater or snow water can flow into the machine body under the condition that the protective cover is not arranged, and rusting can be caused for a long time to influence the use condition of mechanical equipment.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a variable amplitude speed reducer of flanged cover body is provided, the structure that aims at overcoming current reduction gear and appear in the in-service use is not compact, and the installation is restricted, and the junction between reduction gear and the motor is intake and is rusted and for doing personnel's potential safety hazard problem a little.

A variable-amplitude speed reducer with a flange cover body comprises a first elastic connector 1, a flange plate 2, a shaft sleeve 3, a protective cover 31, a speed reducer shell 4, a rotating shaft four 5, a rotating shaft three 6, an elastic plum blossom pad 7, a second elastic connector 8, a first bevel gear 9, a second bevel gear 10, a rotating shaft two 11, a rotating shaft one 12, a first circular bevel gear 13, a second circular bevel gear 14, a third bevel gear 15, a fourth bevel gear 16 and a speed reducer back plate 17, wherein the rotating shaft two 11, the rotating shaft three 6 and the rotating shaft four 5 are in an L-shaped layout, the second elastic connector 8 is arranged at the end part of the rotating shaft one 12, the bevel gear one 9 is arranged at the other end part of the rotating shaft one 12, the first bevel gear 9 is meshed with the second bevel gear 10 on one end of the rotating shaft two 11, the rotating shaft two 11 is positioned below the first bevel gear 9, the arc bevel gear one 13 is, a third helical gear 15 is arranged on the shaft body of the third rotating shaft 6, and the third helical gear 15 is meshed with a fourth helical gear 16 arranged on the fourth rotating shaft 5; the outside of axle sleeve 3 is connected with one end of safety cover 31, ring flange 2 has all been put at the both ends of safety cover 31, and the cover body of safety cover 31 is the rectangle, and the other end terminal surface of safety cover 31 is put and is had ring flange 2.

The first rotating shaft 12 penetrates through the shaft sleeve 3 and is arranged above the second rotating shaft 11 in parallel.

The tooth surfaces of the first bevel gear 9, the second bevel gear 10, the first arc bevel gear 13, the second arc bevel gear 14, the third bevel gear 15 and the fourth bevel gear 16 are all hard tooth surfaces.

An elastic plum blossom pad 7 is embedded on a second elastic connector 8 on the end portion of the first rotating shaft 12, and the second elastic connector 8 is embedded with the first elastic connector 1.

The flange plate that the one end of safety cover 31 set up connects axle sleeve 3, and axle sleeve 3 and reduction gear backplate 17 pass through the bolt fastening respectively at the both ends of reduction gear shell 4, and convenient to detach conveniently overhauls.

The outside of axle sleeve 3 adopts bolted connection fixed, convenient to detach with being connected of safety cover 31.

The utility model has the advantages that: the flange connection mode of shaft sleeve and safety cover is adopted, so that the reducer housing and the motor are integrally and hermetically connected to act, the problem that water enters the junction of the rotating shaft or potential safety hazards are brought to operators is avoided, the L-shaped speed reducing mechanism in the shell is compact in structure, small in size, convenient to install and high in transmission efficiency, and when the motor and the reducer are integrally transported, the motor is not easy to damage in the transportation process due to the effect of the safety cover.

Drawings

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

Fig. 2 is a schematic view of the internal structure of the present invention.

Reference numerals: the device comprises a first elastic connector 1, a flange plate 2, a shaft sleeve 3, a protective cover 31, a speed reducer shell 4, a rotating shaft four 5, a rotating shaft three 6, an elastic plum blossom pad 7, a second elastic connector 8, a first bevel gear 9, a second bevel gear 10, a rotating shaft two 11, a rotating shaft one 12, a first arc bevel gear 13, a second arc bevel gear 14, a third bevel gear 15, a fourth bevel gear 16 and a speed reducer back plate 17.

Detailed Description

A variable-amplitude reducer with a flange cover body comprises a connector formed by embedding a first elastic connector 1 into a second elastic connector 8, one end of the connector is connected with a rotating shaft of a motor, the other end of the connector is connected with a rotating shaft I12, a power source connected with the connector drives the rotating shaft I12 to rotate and drives a bevel gear I9 to be meshed with a bevel gear II 10 to transmit, the bevel gear II 10 drives a circular bevel gear I9 to be meshed with a circular bevel gear II 14 on a rotating shaft II 11 to transmit, the circular bevel gear II 14 drives a bevel gear III 15 on a rotating shaft III 6 to be meshed with a bevel gear IV 16 to transmit, the bevel gear IV 16 drives a rotating shaft IV 5 to transmit and output, a shaft sleeve 3 is arranged on the rotating shaft I12, the shaft sleeve 3 and a protective cover 31 are connected through a flange plate 2 and arranged on the input end face of a reducer housing 4 to play a role in integrally sealing connection with the, the back of reduction gear input is arranged in to reduction gear backplate 17, plays sealed fixed action, and L type reduction gears has compact structure in its casing, and is small, the installation of being convenient for, and transmission efficiency is high, and when motor and reduction gear wholly transported, because the effect of safety cover, the difficult impaired of motor in the transportation.

Claims

1. The utility model provides a change width of cloth reduction gear of flanged cover body, includes first elastic connector (1), ring flange (2), axle sleeve (3), safety cover (31), reduction gear shell (4), pivot four (5), pivot three (6), elasticity plum blossom pad (7), second elastic connector (8), helical gear (9), helical gear two (10), pivot two (11), pivot one (12), circular arc bevel gear one (13), circular arc bevel gear two (14), helical gear three (15), helical gear four (16) and reduction gear backplate (17), its characterized in that: the rotating shaft II (11), the rotating shaft III (6) and the rotating shaft IV (5) are arranged in an L shape, a second elastic connector (8) is arranged at the end part of the rotating shaft I (12), a first bevel gear (9) is arranged at the other end of the rotating shaft I (12), the first bevel gear (9) is meshed with a second bevel gear (10) arranged at one end of the rotating shaft II (11), the rotating shaft II (11) is positioned below the first bevel gear (9), a first arc bevel gear (13) is arranged at the other end of the rotating shaft II (11), the first arc bevel gear (13) is meshed with a second arc bevel gear (14) arranged at the end part of the rotating shaft III (6), a third bevel gear (15) is arranged on the shaft body of the rotating shaft III (6), and the third bevel gear (15) is meshed; the outer connection safety cover (31) of axle sleeve (3) one end, ring flange (2) have all been put at the both ends of safety cover (31), and the cover body of safety cover (31) is the rectangle, states and has put ring flange (2) on the other end terminal surface of safety cover (31).

2. A variable-amplitude reducer with a flanged cover according to claim 1, characterized in that: the first rotating shaft (12) penetrates through the shaft sleeve (3) and is arranged above the second rotating shaft (11) in parallel.

3. A variable-amplitude reducer with a flanged cover according to claim 1, characterized in that: the tooth surfaces of the first helical gear (9), the second helical gear (10), the first arc bevel gear (13), the second arc bevel gear (14), the third helical gear (15) and the fourth helical gear (16) are all hard tooth surfaces.

4. A variable-amplitude reducer with a flanged cover according to claim 1, characterized in that: an elastic plum blossom pad (7) is embedded in a second elastic connector (8) at the end of the first rotating shaft (12), and the second elastic connector (8) is embedded in the first elastic connector (1).

5. A variable-amplitude reducer with a flanged cover according to claim 1, characterized in that: the flange plate arranged at one end of the protective cover (31) is connected with the shaft sleeve (3), and the shaft sleeve (3) and the speed reducer back plate (17) are respectively fixed at two ends of the speed reducer shell (4) through bolts.