CN212868398U - Planet carrier of planetary reducer - Google Patents

Abstract

The planet carrier comprises a connecting part for mounting an output shaft of the planetary reducer and a mounting part arranged on the connecting part for mounting a plurality of planet wheels; the mounting part comprises two mounting plates arranged at intervals and a plurality of connecting pieces arranged between the two mounting plates; a space for mounting the sun wheel is formed between the two mounting plates; the two mounting plates are detachably connected through a plurality of connecting pieces, the connecting pieces are distributed at intervals along the circumferential direction of the mounting plates, and a space for mounting the planet wheel is formed between every two connecting pieces; the connecting part is arranged on one side of one mounting plate far away from the connecting part, and a through hole through which the sun gear can pass is arranged on the mounting plate far away from the connecting part. This application has the effect of the convenience when improving the installation planet wheel.

Description

Planet carrier of planetary reducer

Technical Field

The application relates to the field of planetary speed reducers, in particular to a planetary carrier of a planetary speed reducer.

Background

The planetary reduction gear is a power transmission mechanism that can obtain a large torque while reducing the number of revolutions of a motor to a desired number of revolutions by using a transmission ratio between a plurality of gears.

The planet carrier is one of the key parts of the power transmission of the whole planetary reducer, the planet carrier provides mounting positions for a plurality of planet wheels, a mounting space is not provided for a sun wheel between the planet wheels, the planet wheels are generally mounted on the planet carrier through a gear shaft, the assembly precision of the whole planetary reducer is determined by the plurality of planet wheels, the gear shaft on the planet wheels and the mounting precision between the planet carrier, at present, the steps are complicated when the planet wheels are mounted on the planet carrier, the planet wheels are not convenient to mount and position, and the assembly precision is low.

With respect to the related art in the above, the inventors consider that there is a drawback that it is inconvenient to mount the planetary gear.

SUMMERY OF THE UTILITY MODEL

In order to improve the convenience when installing the planet wheel, this application provides a planetary reducer's planet carrier.

The application provides a planetary reducer's planet carrier adopts following technical scheme:

a planetary gear reducer comprises a connecting part for mounting an output shaft of the planetary gear reducer and a mounting part arranged on the connecting part for mounting a plurality of planetary gears;

the mounting part comprises two mounting plates arranged at intervals and a plurality of connecting pieces arranged between the two mounting plates; a space for mounting the sun wheel is formed between the two mounting plates; the two mounting plates are detachably connected through a plurality of connecting pieces, the connecting pieces are distributed at intervals along the circumferential direction of the mounting plates, and a space for mounting the planet wheel is formed between every two connecting pieces;

the connecting part is arranged on one side of one mounting plate far away from the connecting part, and a through hole through which the sun gear can pass is arranged on the mounting plate far away from the connecting part.

By adopting the technical scheme, when the planetary reducer is assembled, the planetary wheels are matched with the gear shaft, the planetary wheels and the gear shaft are installed on one installation plate together, the planetary wheels are positioned between two adjacent connecting pieces, and after all the gear shafts are installed, the other installation plate is connected with the other end of the gear shaft through the connecting pieces, so that the plurality of planetary wheels are installed on the planet carrier; then the sun wheel is arranged among the planet wheels through the through holes, and finally the planet carrier, the planet wheels and the sun wheel which are arranged in the shell, and the output shaft is connected to the connecting part; the planet wheel is installed to the planet carrier, and the installation mode is simple and convenient, is convenient for fix a position a plurality of planet wheels, improves the assembly precision between a plurality of planet wheels.

Preferably, mounting holes are formed in the mounting plates between every two adjacent connecting pieces, and the mounting holes in the two mounting plates correspond to one another.

Through adopting above-mentioned technical scheme, the mounting hole on the mounting panel cooperates with the gear shaft, when the installation planet wheel, install the planet wheel on the gear shaft earlier, install the both ends of gear shaft respectively again on two mounting panels the mounting hole that corresponds in, fix a position the gear shaft through the mounting hole, improve the installation accuracy of a plurality of planet wheels and gear shaft.

Preferably, the inner side wall of the mounting hole is a conical surface with the diameter gradually reduced towards one side far away from the connecting piece.

Through adopting above-mentioned technical scheme, the gear shaft both ends of installation planet wheel also become the conical surface setting, when the installation gear shaft, directly with the both ends of gear shaft respectively the plug-in connection to the mounting hole of two mounting panels, reuse connecting piece connects two mounting panels, along with the reduction of interval between two mounting panels, the both ends of gear shaft can be pressed from both sides gradually tightly between two mounting panels, be convenient for to the installation location of gear shaft to the installation accuracy of gear shaft has been improved.

Preferably, the side of the mounting plate close to the connecting piece is provided with a boss at each mounting hole, and the mounting holes penetrate through the corresponding bosses.

Through adopting above-mentioned technical scheme, the boss increases the wall thickness of mounting panel mounting hole department, improves the structural strength of mounting panel in mounting hole department.

Preferably, with connecting portion are connected one side that the mounting panel is close to connecting portion is provided with a plurality of strengthening ribs, and is a plurality of the strengthening rib is with a plurality of the mounting hole one-to-one, the strengthening rib sets up in the mounting hole department that corresponds to will correspond the one end that the mounting hole is close to connecting portion is sealed.

Through adopting above-mentioned technical scheme, can strengthen the joint strength between mounting panel and the connecting portion, can butt on the strengthening rib earlier when making the gear shaft installation again, play the locate function when installing the gear shaft.

Preferably, the connecting piece sets up to two connecting blocks, and two connecting blocks are installed respectively on two mounting panels, two the connecting block one end that is close to each other links together.

Through adopting above-mentioned technical scheme, two connecting blocks butt each other makes and forms the space that can place planet wheel and sun gear between two mounting panels, the installation location between two mounting panels of being convenient for.

Preferably, a threaded hole is formed in the connecting block close to one side of the connecting part, a bolt hole is formed in the mounting plate far away from one side of the connecting part, and the bolt hole penetrates through the corresponding mounting plate;

the connecting piece further comprises a connecting bolt, a stud of the connecting bolt penetrates through the bolt hole and extends into the threaded hole to be in threaded connection with the bolt hole, and a nut of the connecting bolt is abutted to the corresponding mounting plate.

Through adopting above-mentioned technical scheme, install the planet wheel between two mounting panels after, the connecting block butt that will correspond is in the same place to make bolt hole and the screw hole on two connecting blocks that correspond to it, reuse connecting bolt passes the bolt hole and twists to the screw hole in, thereby link together two mounting panels under connecting bolt's effect, the connected mode is simple convenient, stable in structure, and the accessible is adjusted.

Preferably, the connecting bolt is a hexagon socket head cap screw.

Through adopting above-mentioned technical scheme, the back is in the same place two connecting blocks with hexagon socket head cap screw, and hexagon socket head cap screw's nut can imbed the mounting panel in, saves space, does not interfere being connected between planet carrier and the planetary reducer shell.

Preferably, the mounting panel sets up to the circular slab, the mounting panel has all seted up the tangent plane between per two adjacent connecting pieces along on the lateral wall of self circumference.

Through adopting above-mentioned technical scheme, make the mounting panel rotation degree higher, inertia when rotating is less, and is more steady when making the planet carrier rotate to be convenient for manufacturing reduces manufacturing cost.

Preferably, the connecting portion is a connecting sleeve, and a spline groove is formed in the connecting sleeve.

Through adopting above-mentioned technical scheme, when installing planetary reducer's shell with the planet carrier on, with adapter sleeve's lateral wall and shell cooperation, make the planet carrier can rotate in the shell, and planetary reducer's output shaft can directly cooperate with the spline groove on the adapter sleeve, make the output shaft more convenient with the erection joint of planet carrier.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the two mounting plates and the connecting pieces arranged between the two mounting plates, when the planet wheels are mounted, the planet wheels are mounted on one mounting plate, and the other mounting plate is matched with the planet wheels through the connecting pieces, so that the mounting of the planet wheels is simpler and more convenient, the positioning of the planet wheels is convenient, and the assembly precision among the planet wheels is improved;

2. each mounting plate is provided with a plurality of mounting holes, the inner side walls of the mounting holes are arranged in a conical surface mode, so that the mounting and positioning of the gear shaft are more accurate and stable, meanwhile, the bosses are arranged at the mounting holes, the wall thickness of the mounting plates is increased, and the structural strength of the mounting plates is improved;

3. the connecting piece adopts two connecting blocks and hexagon socket head cap screw, makes the connection of two mounting panels more convenient, saves the occupation space of planet carrier in the planetary gear shell, does not interfere being connected between planet carrier and the planetary gear shell.

Drawings

Fig. 1 is a schematic structural diagram of a planetary carrier in an embodiment of the present application.

Fig. 2 is a sectional view showing a structure of the mounting hole.

Fig. 3 is an exploded view showing the connection of two mounting plates.

Description of reference numerals: 1. a connecting sleeve; 2. mounting a plate; 21. a through hole; 22. mounting holes; 23. a boss; 24. reinforcing ribs; 25. cutting into a plain noodles; 3. a connecting member; 31. connecting blocks; 311. a threaded hole; 312. bolt holes; 32. and connecting the bolts.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses planet carrier of planetary reducer. Referring to fig. 1, the carrier includes a connection portion and a mounting portion provided on the connection portion; the connecting part is used for installing the planet carrier into the shell of the planetary speed reducer and is connected with the output shaft of the planetary speed reducer; the mounting portion is used for mounting a plurality of planet wheels, and a mounting space is not provided for the sun wheel among the planet wheels.

Referring to fig. 1, connecting portion set up to adapter sleeve 1, have seted up the spline groove on adapter sleeve 1's the inside wall, when installing the planet carrier in planetary reducer's the shell, adapter sleeve 1's lateral wall and planetary reducer's shell are connected, make the planet carrier can rotate around adapter sleeve 1's axis, and planetary reducer's output shaft accessible splined connection is in adapter sleeve 1 simultaneously, when making the planet carrier rotate, drives the output shaft through the spline and rotates.

Referring to fig. 1, the mounting part includes two mounting plates 2 and a plurality of connecting members 3 disposed between the two mounting plates 2; the mounting plates 2 are arranged in a circular plate shape, the axis of each mounting plate 2 is overlapped with the axis of the connecting sleeve 1, the two mounting plates 2 are symmetrically arranged, and a space for mounting a plurality of planet wheels and placing a sun wheel is formed between the two mounting plates 2; one of the mounting plates 2 is fixedly connected with the connecting sleeve 1 in an integrated manner, and the connecting sleeve 1 is communicated with the space between the two mounting plates 2; a through hole 21 is formed in the mounting plate 2 far away from one side of the connecting sleeve 1, and a sun gear of the planetary speed reducer can enter between the two mounting plates 2 from the through hole 21.

Referring to fig. 1, a plurality of connecting pieces 3 connect two mounting plates 2 together, the connecting pieces 3 are evenly distributed at intervals along the circumferential direction of the mounting plates 2, each connecting piece 3 is arranged on the circumferential side wall of the mounting plate 2, and a planet wheel is arranged between every two adjacent connecting pieces 3, so that a part of the planet wheel can extend out of a planet carrier to be meshed with a gear ring of a planetary reducer.

Referring to fig. 1 and 2, the mounting plate 2 is provided with mounting holes 22 between every two adjacent connecting members 3, the mounting holes 22 are located at the middle part between two adjacent connecting members 3, and the mounting holes 22 on the two mounting plates 2 are uniformly and correspondingly arranged. The inner side wall of the mounting hole 22 is in a conical surface arrangement with a diameter gradually decreasing towards the side far away from the connecting piece 3, i.e. the two ends of the gear shaft which is matched with the planet gear are also in a conical surface arrangement.

When the planet gears are installed in the planet carrier, the planet gears are installed on the gear shafts, one end of each gear shaft is installed in the installation hole 22 of one installation plate 2, after all the planet gears are installed in sequence, the other installation plate 2 is matched with the plurality of gear shafts through the connecting piece 3, and therefore the planet gears are installed in the planet carrier; in the installation, mounting hole 22 plays the positioning action to the gear shaft, makes the installation of planet wheel and planet carrier more convenient, improves the assembly precision of a plurality of planet wheels.

And, referring to fig. 1 and 2, a plurality of bosses 23 are fixedly arranged on the side surface of the mounting plate 2 close to the connecting piece 3, the plurality of bosses 23 correspond to the plurality of mounting holes 22 one-to-one, that is, each boss 23 is fixedly arranged at the mounting hole 22 of the mounting plate 2, and the mounting hole 22 penetrates through the space between the boss 23 and the two mounting plates 2 to be communicated. The boss 23 increases the wall thickness of the mounting plate 2 at the mounting hole 22, and improves the structural strength of the mounting plate 2.

Referring to fig. 1, a plurality of reinforcing ribs 24 are further fixedly arranged on the side wall, close to the connecting sleeve 1, of the mounting plate 2 connected with the connecting sleeve 1, the plurality of reinforcing ribs 24 correspond to the plurality of mounting holes 22 one to one, the plurality of reinforcing ribs 24 are fixedly connected with the outer side wall of the connecting sleeve 1, and one ends, corresponding to the mounting holes 22, of the reinforcing ribs 24 are sealed. The connecting strength between the mounting plate 2 and the connecting part can be enhanced, the gear shaft can be firstly abutted against the reinforcing ribs 24 during mounting, and a positioning function is achieved during mounting of the gear shaft.

Referring to fig. 3, each connecting member 3 includes two detachably connected connecting blocks 31, and the two connecting blocks 31 are symmetrically arranged; two connecting blocks 31 and two mounting panels 2 one-to-one, and connecting block 31 sets up and sets up rather than integrated into one piece on corresponding mounting panel 2, and the mutual butt of connecting block 31 through corresponding on two mounting panels 2 makes two mounting panels 2 splice together. The plain noodles 25 have all been seted up between per two connecting blocks 31 on the lateral wall of mounting panel 2 circumference, but in the at utmost makes the planet wheel stretch out the planet carrier to be convenient for manufacturing.

Referring to fig. 3, a threaded hole 311 is formed in the connecting block 31 close to one side of the connecting sleeve 1, a bolt hole 312 is formed in the connecting block 31 far away from one side of the connecting sleeve 1, a connecting bolt 32 is arranged on the connecting block 31, a stud of the connecting bolt 32 penetrates through the bolt hole 312 and then extends into the threaded hole 311 to be in threaded connection with the threaded hole, so that a nut of the stud extrudes the mounting plate 2 towards one side of the connecting sleeve 1, and the two mounting plates 2 are spliced together.

In addition, referring to fig. 3, the connection bolt 32 is a hexagon socket head cap screw, and after the two mounting plates 2 are connected, a nut of the hexagon socket head cap screw can be inserted into the mounting plate 2, so that the space occupied by the planet carrier in the planetary reducer housing is reduced, and the connection between the planet carrier and the planetary reducer housing is not interfered.

The implementation principle of the planet carrier of the planetary reducer in the embodiment of the application is as follows: through set up connecting piece 3 between two mounting panels 2, make two mounting panels 2 can dismantle the connection, set up the mounting hole 22 that the inside wall is the conical surface setting on the mounting panel 2 simultaneously, when installing planet wheel in the planet carrier, mounting hole 22 on the mounting panel 2 plays the positioning action to the gear shaft, is convenient for fix a position the installation to a plurality of planet wheels to the assembly precision of planet wheel and planet carrier has been improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. A planet carrier of a planetary reducer is characterized in that: the planetary gear transmission mechanism comprises a connecting part for mounting an output shaft of a planetary gear reducer and a mounting part arranged on the connecting part for mounting a plurality of planetary gears;

the mounting part comprises two mounting plates (2) arranged at intervals and a plurality of connecting pieces (3) arranged between the two mounting plates (2); a space for mounting the sun wheel is formed between the two mounting plates (2); the two mounting plates (2) are detachably connected through a plurality of connecting pieces (3), the connecting pieces (3) are distributed at intervals along the circumferential direction of the mounting plates (2), and a space for mounting the planet wheel is formed between every two connecting pieces (3);

the connecting part is arranged on one side, far away from the connecting part (3), of one mounting plate (2), and a through hole (21) through which the sun gear can pass is formed in the mounting plate (2) far away from one side of the connecting part.

2. A planet carrier of a planetary reducer according to claim 1, wherein: mounting holes (22) are formed in the mounting plates (2) between every two adjacent connecting pieces (3), and the mounting holes (22) in the two mounting plates (2) are in one-to-one correspondence.

3. A planet carrier of a planetary reducer according to claim 2, wherein: the inner side wall of the mounting hole (22) is a conical surface with the diameter gradually reduced towards one side far away from the connecting piece (3).

4. A planet carrier of a planetary reducer according to claim 3, wherein: the side that mounting panel (2) are close to connecting piece (3) all is provided with boss (23) in every mounting hole (22) department, corresponding boss (23) are run through in mounting hole (22).

5. A planet carrier of a planetary reducer according to claim 3, wherein: with connecting portion are connected one side that mounting panel (2) are close to connecting portion is provided with a plurality of strengthening ribs (24), and is a plurality of strengthening rib (24) and a plurality of mounting hole (22) one-to-one, strengthening rib (24) set up in mounting hole (22) department that corresponds, and will correspond mounting hole (22) are close to the one end of connecting portion and seal.

6. A planet carrier of a planetary reducer according to claim 1, wherein: connecting piece (3) set up to two connecting blocks (31), install respectively on two mounting panels (2) two connecting blocks (31), two the one end that connecting block (31) are close to each other links together.

7. A planet carrier of a planetary reducer according to claim 6, wherein: a threaded hole (311) is formed in the connecting block (31) close to one side of the connecting part, a bolt hole (312) is formed in the mounting plate (2) far away from one side of the connecting part, and the bolt hole (312) penetrates through the corresponding mounting plate (2);

the connecting piece (3) further comprises a connecting bolt (32), a stud of the connecting bolt (32) penetrates through the bolt hole (312) and extends into the threaded hole (311) to be in threaded connection with the bolt hole, and a nut of the connecting bolt (32) is abutted to the corresponding mounting plate (2).

8. A planet carrier of a planetary reducer according to claim 7, wherein: the connecting bolt (32) is a hexagon socket head cap screw.

9. A planet carrier of a planetary reducer according to claim 1, wherein: mounting panel (2) set up to the circular slab, flush face (25) have all been seted up between per two adjacent connecting piece (3) on the lateral wall of mounting panel (2) along self circumference.

10. A planet carrier of a planetary reducer according to claim 1, wherein: the connecting portion is arranged as a connecting sleeve (1), and a spline groove is formed in the connecting sleeve (1).

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