CN218644769U

CN218644769U - Segmented module structure of central reducer of drive axle

Info

Publication number: CN218644769U
Application number: CN202222816105.7U
Authority: CN
Inventors: 薛汉明; 卞维展; 尹永伟; 郑柏浩
Original assignee: Shandong Lingong Construction Machinery Co Ltd
Current assignee: Shandong Lingong Construction Machinery Co Ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-03-17
Anticipated expiration: 2032-10-25

Abstract

The utility model discloses a transaxle central reducer segmentation modular structure, it belongs to the engineering machine tool field, and it has solved and has lacked a sectional type modularization fastening mode among the prior art, makes central reducer's assembly and maintenance more convenient, reduce cost's transaxle central reducer segmentation modular structure's problem. It mainly includes mainly subtracts casing, planet speed reduction assembly and braking casing, and the casing that subtracts is installed on the main casing that subtracts through bolt I to the speed reduction casing, planet speed reduction assembly and braking casing pass through the fastener and connect. The utility model discloses mainly used engineering machine tool transaxle central reduction gear.

Description

Transaxle central reducer segmentation modular structure

Technical Field

The utility model relates to a central reducer structure, specifically speaking especially relates to a transaxle central reducer segmentation modular structure.

Background

When the engineering machinery drive axle is driven by a hydraulic motor or an electric motor, a central speed reducer is usually needed due to the fact that the hydraulic motor or the electric motor is high in rotating speed, a parking brake is arranged, and the conventional structure mainly adopts an integrated fixing mode of the speed reducer, a brake assembly and a brake cylinder.

The speed reduction shell, the planetary speed reduction assembly, the connecting seat and the brake cylinder shell are connected and fastened together through the long bolts, the long bolts are connected with a plurality of parts simultaneously, and the parts are in an unfixed state before fastening, so that the difficulty of horizontal assembly is increased. The cavity where the planetary speed reduction assembly is located is a sealed cavity with lubricating oil, so that the connecting surface of the speed reduction shell and the planetary speed reduction assembly is a sealing surface, when a friction plate group or an oil cylinder assembly is maintained, bolts between the speed reduction shell and the main speed reduction shell need to be removed, and then long bolts need to be removed, so that the original sealing state is damaged, the lubricating oil needs to be emptied before maintenance, the connecting surface of the speed reduction shell and the planetary speed reduction assembly needs to be sealed again after maintenance, the lubricating oil is filled again, and the maintenance process and the maintenance cost are increased.

Braking cylinder casing and spline hub are the separation state before the fastening, can't form the concentric ring, therefore the friction disc group can only whole set assemble earlier on braking cylinder casing's mounting groove, and the initiative friction disc is because not fixed, and the mounting groove produces the dislocation easily, leads to wholly pack into braking cylinder casing's mounting groove occasionally the degree of difficulty, need adopt appurtenance, reduces production efficiency and increases the maintenance degree of difficulty.

Disclosure of Invention

The utility model aims at providing a transaxle central reduction gear segmentation modular structure to solve and lack a sectional type modularization fastening among the prior art, assembly and maintenance are convenient, low-cost transaxle central reduction gear segmentation modular structure's problem.

The utility model discloses a realize through following technical scheme:

a segmented module structure of a central reducer of a drive axle comprises a main reducer shell, a planetary reducer assembly and a brake shell, wherein the reducer shell is installed on the main reducer shell through a bolt I; the planetary speed reducing assembly is located between the speed reducing shell and the braking shell, a fastening piece enables the planetary speed reducing assembly and the speed reducing shell to form a sealed cavity, a spline hub is arranged on the planetary speed reducing assembly, after the braking shell is fixedly connected with the planetary speed reducing assembly, the braking shell is concentric with the spline hub, and a driven friction plate and a driving friction plate can be sequentially assembled in a single piece mode.

The brake device further comprises an oil cylinder assembly and a connecting disc, wherein the oil cylinder assembly and the connecting disc are installed on a threaded hole of the brake shell through a screw I, and the oil cylinder part is fastened into a small part, namely the oil cylinder assembly, through a bolt II; the brake shell is provided with an installation groove, the friction plate group is installed on the installation groove, and the oil cylinder shell of the oil cylinder assembly limits the friction plate group.

Furthermore, the fastener is a screw II, a counter bore is formed in the brake shell, and the screw II is matched with the counter bore to connect and fasten the speed reduction shell, the planetary speed reduction assembly and the brake shell.

Furthermore, the mounting grooves are uniformly distributed, the threaded holes are uniformly distributed in groups, the counter bores are non-uniformly distributed, and the distribution centers of the mounting grooves, the counter bores and the threaded holes are respectively superposed with the central axis of the brake shell, so that uniform stress is ensured, and the using number of the screws II is reduced; counter bores, threaded holes and mounting grooves are reasonably arranged, so that interference and too close distance are avoided.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the mounting grooves are uniformly distributed, the threaded holes are uniformly distributed in groups, the counter bores are non-uniformly distributed, and the distribution centers of the counter bores are superposed with the central axis of the brake shell to ensure uniform stress.

2. The brake shell, the planetary speed reduction assembly and the speed reduction shell are connected and fastened through the screw II, so that the speed reduction module is fastened independently, and the disassembly of a sealed cavity of the speed reduction module can be avoided in the maintenance process of a non-speed reduction module.

3. The operation process of friction plate group maintenance is reduced, the planetary reduction assembly, the brake shell, the friction plate group, the oil cylinder assembly and the connecting disc can be sequentially assembled in a segmented mode, and the horizontal assembly is simple and labor-saving.

4. After the brake shell, the planetary speed reduction assembly and the speed reduction shell are fastened by the screw II, the spline hub fixed on the planetary speed reduction assembly and the brake shell form a concentric ring, and the driven friction plate and the driving friction plate can be sequentially assembled by a single plate, so that the operation is simple and easy, and dislocation among the friction plates during integral assembly is avoided.

Drawings

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

fig. 2 is an exploded view of the present invention;

fig. 3 is a schematic structural view of the brake housing of the present invention.

In the figure: 1. a main reduction housing; 2. a reduction housing; 3. a planetary reduction assembly; 4. a brake housing; 5. a friction plate set; 6. a cylinder housing; 7. a connecting disc; 8. a screw; 9. a splined hub; 10. a bolt I; 11. an oil cylinder assembly; 12. a bolt II; 13. a screw II; 14. mounting grooves; 15. a countersunk hole; 16. a threaded bore.

Detailed Description

The invention will be further described and illustrated with reference to the accompanying drawings.

As shown in fig. 1-2, embodiment 1 is a segmented module structure of a central speed reducer of a drive axle, and includes a main speed reducing housing 1, a planetary speed reducing assembly 3 and a brake housing 4, wherein the speed reducing housing 2 is mounted on the main speed reducing housing 1 through a bolt i 10, the speed reducing housing 2, the planetary speed reducing assembly 3 and the brake housing 4 are connected through a fastener, the fastener firstly passes through holes in the brake housing 4 and the planetary speed reducing assembly 3, and then the fastener is in threaded connection with the speed reducing housing 2; the planetary speed reducing assembly 3 is positioned between the speed reducing shell 2 and the braking shell 4, a fastening piece enables the planetary speed reducing assembly 3 and the speed reducing shell 2 to form a sealed cavity (as shown in figure 1), a spline hub is arranged on the planetary speed reducing assembly, after the braking shell is fixedly connected with the planetary speed reducing assembly, the braking shell is concentric with the spline hub, and a driven friction plate and a driving friction plate can be sequentially assembled in a single piece mode.

Embodiment 2, a drive axle central reducer segmentation modular structure, still include cylinder assembly 11 and connection pad 7, cylinder assembly 11 and connection pad 7 are installed on the screw hole 16 of brake housing 4 through screw I8, and the bolt II 12 fastens the oil cylinder spare part into a widget, namely cylinder assembly 11, and cylinder assembly 11 is prior art, and cylinder housing 6 of cylinder assembly 11 carries on spacing to friction disc group 5; the brake shell 4 is provided with an installation groove 14, and the friction plate group 5 is installed on the installation groove 14; the fastening piece is a screw II 13, a counter bore 15 is formed in the brake shell 4, and the screw II 13 is matched with the counter bore 15 to connect and fasten the speed reduction shell 2, the planetary speed reduction assembly 3 and the brake shell 4; mounting groove 14 is the equipartition state, and screw hole 16 is for uniting the equipartition, and counter bore 15 is the non-equipartition state, and mounting groove 14, counter bore 15, the distribution center of screw hole 16 coincide with 4 center shafts of brake housing respectively, guarantee that the atress is even to reduce II 13 use quantity of screw, counter bore 15, screw hole 16 and mounting groove 14 (installation driven friction disc) are through rational arrangement, avoid interfering and the distance is too near, and other are the same with embodiment 1.

Adopting a sectional type modular assembly structure: the brake shell 4 is provided with the counter sink 15, the brake shell 4, the planetary speed reduction assembly 3 and the speed reduction shell 2 are connected and fastened through the screw II 13, so that the speed reduction module is fastened independently, and the maintenance process of the non-speed reduction module can avoid the disassembly of a sealed cavity of the speed reduction module. The oil cylinder assembly 11 is fastened into an independent small part through the bolt II 12, is not loose when the screw I8 is disassembled, can be independently assembled and maintained, and reduces the operation process of maintaining the friction plate group. The maintenance of the friction plate group 5 and the oil cylinder assembly 11 only needs to disassemble the screw I8, and the speed reducing module is still in a fastening state. The planetary reduction assembly 3, the brake shell 4, the friction plate group 5, the oil cylinder assembly 11 and the connecting disc can be sequentially assembled in a segmented mode, and the horizontal assembly is simple and labor-saving. After the brake shell 4, the planetary reduction assembly 3 and the reduction shell 2 are fastened by the screw II 13, the spline hub 9 fixed on the planetary reduction assembly 3 and the brake shell 4 form a concentric ring, single-piece assembly can be sequentially carried out on the driven friction plate and the driving friction plate, the operation is simple and easy, and dislocation among the friction plates during integral assembly is avoided. By adopting a segmented structure, the disassembly and maintenance of each module are simpler, and the maintenance efficiency is improved.

Claims

1. The utility model provides a transaxle central reducer segmentation modular structure, subtracts casing (1), planet speed reduction assembly (3) and brake housing (4) including the owner, and install on the owner subtracts casing (1) speed reduction casing (2), its characterized in that: the speed reduction shell (2), the planetary speed reduction assembly (3) and the brake shell (4) are connected through fasteners.

2. The transaxle central reducer segmented module structure of claim 1, wherein: the brake device is characterized by further comprising an oil cylinder assembly (11) and a connecting disc (7), wherein the oil cylinder assembly (11) and the connecting disc (7) are installed on a threaded hole (16) of the brake shell (4) through a screw I (8); the brake shell (4) is provided with an installation groove (14), and the friction plate set (5) is installed on the installation groove (14).

3. The transaxle central reducer segmented module structure according to claim 1 or 2, wherein: the fastener is a screw II (13), a counter bore (15) is formed in the brake shell (4), and the screw II (13) is matched with the counter bore (15).

4. The transaxle central reducer segmented module structure of claim 2, wherein: mounting groove (14) are the equipartition state, and screw hole (16) are for uniting the equipartition, and counter sink (15) are the non-equipartition state, and the distribution center of mounting groove (14), counter sink (15), screw hole (16) coincides with brake housing (4) center pin respectively.