Supporting shaft for planetary rotation gearbox

Abstract

The utility model belongs to the technical field of planetary rotary gearboxes, and discloses a supporting shaft for a planetary rotary gearbox, which comprises a shaft body, one end of the shaft body is provided with an integrally formed supporting seat, the supporting seat is provided with round bulges which are arranged at equal intervals along the axial direction of the shaft body and are integrally formed, and three bearings are arranged in the supporting seat; and planetary shafts are mounted in the three bearings. The supporting shaft is of an integrated design and can support the interior of the gearbox, meanwhile, all the components can be reasonably supported, cooperative work of the components is guaranteed, the axial swing phenomenon of the supporting shaft is reduced, the gearbox operates stably, and therefore the axial swing phenomenon of the supporting shaft can be reduced, and the service life of the gearbox is prolonged. And meanwhile, the operation stability of the gear box can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of planetary rotary gear boxes, in particular to a support shaft for a planetary rotary gear box. Background Art

[0002] The planetary slewing gearbox is a commonly used transmission device. Its structural characteristics are composed of internal and external meshing gears and planetary gears. It is also equipped with a slewing support frame to enable the planetary gears to rotate fixedly. The support shaft is an important component of the planetary slewing gearbox. Its function is to support the internal structure of the gearbox and ensure its normal operation.

[0003] During operation of the current planetary rotary gearbox, the inventors gradually discovered that the support shaft in the existing planetary rotary gearbox often experiences axial swing, resulting in problems with the smooth operation of the gearbox. Therefore, we propose a support shaft for a planetary rotary gearbox. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the inventors have conducted in-depth research and completed the present utility model after paying a lot of creative work.

[0005] Specifically, the technical problem to be solved by the present invention is to provide a support shaft for a planetary rotary gearbox to solve the technical problem that the support shaft in the current planetary rotary gearbox often swings axially, resulting in the gearbox running smoothly.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A support shaft for a planetary rotary gearbox, the support shaft comprising a shaft body, one end of the shaft body having an integrally formed support seat, the support seat having integrally formed circular protrusions equidistantly arranged along the axial direction of the shaft body, and three bearings installed inside the support seat;

[0008] Planet shafts are installed in the three bearings.

[0009] As an improved technical solution, a groove is provided on the outer surface of one end of the shaft away from the support seat;

[0010] An outer surface of one end of the shaft away from the support seat has an integrally formed limiting ring, and the limiting ring is located between the groove and the support seat.

[0011] As an improved technical solution, fixing grooves corresponding to the bearings are opened inside the circular protrusions, and the fixing grooves are adapted to the bearings, and the bearings are installed in the fixing grooves.

[0012] As an improved technical solution, the three bearings are equidistantly arranged in the fixing groove along the axial direction of the shaft body.

[0013] As an improved technical solution, a planetary gear is installed at one end of the planetary shaft away from the bearing, the outer surface of the planetary gear is meshed with a ring gear, a sun gear is provided at the center of the ring gear, and the sun gear is meshed with the planetary gear.

[0014] As an improved technical solution, the sun gear has an integrally formed sun shaft.

[0015] After adopting the above technical solution, the beneficial effects of the utility model are:

[0016] 1. The support shaft of the utility model is an integrated design and can support the internal structure of the gear box. At the same time, it can provide reasonable support for each component to ensure that they work together to reduce the axial swing of the support shaft and make the gear box run smoothly, thereby reducing the axial swing of the support shaft and ensuring the smooth operation of the gear box.

[0017] 2. The support shaft of the utility model can transmit power, so that each component can operate in a coordinated manner.

[0018] 3. The support shaft of the utility model is made of high-strength material and is surface-treated, which can extend the service life and reduce the frequency of maintenance and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0020] Figure 1 This is a schematic diagram of the overall front structure of the support shaft for the planetary rotary gearbox of the present invention.

[0021] Figure 2 This is a schematic rear view of the overall structure of the support shaft for the planetary rotary gearbox of the present invention.

[0022] Figure 3 This is a schematic diagram of the overall structure of the central support shaft of the planetary rotary gearbox of the present invention.

[0023] Description of reference numerals:

[0024] In the figure: 1. shaft body; 101. groove; 102. limit ring; 2. support seat; 201. round protrusion; 3. bearing; 4. planetary shaft; 5. planetary gear; 6. ring gear; 7. sun gear; 8. sun shaft. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or an option in which both A and B are satisfied.

[0028] In addition, in this utility model, the descriptions of "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0029] Reference Figure 1-3 , provides a support shaft for a planetary rotary gearbox, the support shaft for the planetary rotary gearbox comprising a support shaft made of high-strength material and having a surface treated by a hard chrome electroplating process, a shaft body 1, one end of the shaft body 1 having an integrally formed support seat 2, the support seat 2 having integrally formed circular protrusions 201 equidistantly arranged along the axial direction of the shaft body 1, and three bearings 3 installed inside the support seat 2;

[0030] Planet shafts 4 are installed in the three bearings 3. In application, by assembling the support shaft in the planetary rotary gearbox, the internal structure of the gearbox can be supported, force can be transmitted, axial swing can be reduced, and service life can be extended.

[0031] Reference Figure 3 A groove 101 is formed on the outer surface of one end of the shaft body 1 away from the support seat 2;

[0032] An outer surface of one end of the shaft body 1 away from the support seat 2 has an integrally formed limiting ring 102 , and the limiting ring 102 is located between the groove 101 and the support seat 2 to facilitate assembly of the shaft body 1 .

[0033] Reference Figure 3 The interior of the circular protrusion 201 is provided with fixing grooves corresponding to the bearings 3, and the fixing grooves are adapted to the bearings 3. The bearings 3 are installed in the fixing grooves to facilitate the installation of the bearings 3.

[0034] Reference Figure 3 The three bearings 3 are arranged equidistantly in the fixing groove along the axial direction of the shaft body 1 , so that the bearings 3 can be installed on the support seat 2 .

[0035] Reference Figure 1 and Figure 2 A planetary gear 5 is installed at the end of the planetary shaft 4 away from the bearing 3. The outer surface of the planetary gear 5 is meshed with a ring gear 6. A sun gear 7 is provided at the center of the ring gear 6, and the sun gear 7 is meshed with the planetary gear 5 so that the sun gear 7 drives the planetary gear 5 to rotate in the ring gear 6.

[0036] Reference Figure 1 and Figure 2 The sun gear 7 has an integrally formed sun shaft 8 so that the sun shaft 8 drives the sun gear 7 to rotate.

[0037] It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of protection of the present invention. In addition, it should be understood that after reading the technical content of the present invention, those skilled in the art may make various changes, modifications and / or variations to the present invention, and all such equivalent forms also fall within the scope of protection defined by the appended claims of this application.

Claims

1. A support shaft for a planetary rotary gearbox, characterized in that: The support shaft comprises a shaft body (1), one end of the shaft body (1) has an integrally formed support seat (2), the support seat (2) has integrally formed circular protrusions (201) equidistantly arranged along the axial direction of the shaft body (1), and three bearings (3) are installed inside the support seat (2); Planet shafts (4) are installed in the three bearings (3).

2. The support shaft for a planetary rotary gearbox according to claim 1, characterized in that: A groove (101) is formed on the outer surface of one end of the shaft (1) away from the support seat (2); An outer surface of one end of the shaft body (1) away from the support seat (2) has an integrally formed limiting ring (102), and the limiting ring (102) is located between the groove (101) and the support seat (2).

3. The support shaft for a planetary rotary gearbox according to claim 1, characterized in that: The circular protrusion (201) is provided with fixing grooves corresponding to the bearings (3) respectively, and the fixing grooves are adapted to the bearings (3), and the bearings (3) are installed in the fixing grooves.

4. The support shaft for a planetary rotary gearbox according to claim 3, characterized in that: The three bearings (3) are arranged in the fixing groove at equal distances along the axial direction of the shaft body (1).

5. The support shaft for a planetary rotary gearbox according to claim 1, characterized in that: A planetary gear (5) is mounted on one end of the planetary shaft (4) away from the bearing (3); the outer surface of the planetary gear (5) is meshingly connected with a ring gear (6); a sun gear (7) is provided at the center of the ring gear (6), and the sun gear (7) is meshingly connected with the planetary gear (5).

6. The support shaft for a planetary rotary gearbox according to claim 5, characterized in that: The sun gear (7) is provided with an integrally formed sun shaft (8).

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