Planet carrier

Abstract

The utility model discloses a planet carrier which comprises a supporting seat, an inner tooth part and a plurality of gear parts. The supporting seat is provided with a supporting seat body and a supporting seat protruding part integrally formed with the supporting seat body, and the supporting seat protruding part and the gear part are located on the different sides of the supporting seat body respectively. The inner tooth part is arranged in the middle of the supporting seat, the inner tooth part and the protruding part of the supporting seat are integrally formed, and a plurality of adjacent inner protruding teeth are arranged along the inner surface of the inner tooth part. The gear part is arranged on the supporting seat body, the gear part and the supporting seat body are integrally formed, and the gear part is arranged in a central symmetry mode relative to the center of the supporting seat body. The planet carrier disclosed by the utility model has the beneficial effects that the gear parts are strictly arranged in a central symmetry manner relative to the center of the supporting seat body, and actual eccentric motion is caused by actual non-strict central symmetry arrangement, so that relative motion errors are quickly accumulated, and potential safety hazards caused by motion imbalance of the planet carrier are avoided.

Description

Technical Field

[0001] The utility model belongs to the field of transmission equipment, and in particular relates to a planetary carrier. Background Art

[0002] The utility model patent with publication number CN202032073U and subject name is planet carrier, and its IPC classification number is F16H57 / 08. Its technical solution discloses "a first sleeve 11 is arranged at the center of the disc 1, and the inner wall of the first sleeve 11 has a spline connection portion; the second sleeve 12, that is, the planetary gear shaft, is multiple and distributed circumferentially outside the first sleeve 11. The planet carrier in this embodiment is connected to the driving shaft (for example, in the aviation reducer, the driving shaft is the rotor shaft) through the spline connection portion on the inner wall of the first sleeve 11. The driving shaft rotates, drives the disc 1 to rotate, and then drives the second sleeve to rotate, thus completing the power transmission. The planet carrier has a simple structure, and due to the structure of the spline connection portion and the second sleeve 12, the planetary system has a good load-balancing performance, thereby improving the carrying capacity of the planetary system. Figure 1 As shown, preferably, there are five second sleeves 12, and the five second sleeves 12 are evenly distributed on the disc 1, so that the planet carrier is evenly stressed.

[0003] It can be seen that the above utility model patent has disclosed one of the technical solutions of the planet carrier. However, the technical solution disclosed in the above utility model patent focuses on solving the problem of uniform force on the planet carrier, and does not further solve the problem of avoiding rapid accumulation of relative motion errors, which needs to be further improved. Utility Model Content

[0004] The utility model aims at the prior art, overcomes the above defects and provides a planet carrier.

[0005] The utility model adopts the following technical solution: the planet carrier includes a support seat, an internal gear part and a plurality of gear parts, wherein:

[0006] The support seat is provided with a support seat body and a support seat protrusion integrally formed with the support seat body, and the support seat protrusion and the gear part are respectively located on different sides of the support seat body;

[0007] The inner tooth portion is centrally arranged on the support seat, the inner tooth portion and the protruding portion of the support seat are integrally formed, and a plurality of adjacent inner protruding teeth are arranged along the inner surface of the inner tooth portion;

[0008] The gear part is arranged on the support seat body, the gear part and the support seat body are integrally formed, and the gear part is centrally symmetrically arranged relative to the center of the support seat body.

[0009] As a preferred technical solution of the above technical solution, the gear part is provided with a gear part body, and the end of the gear part body has a gear part groove.

[0010] As a preferred technical solution of the above technical solution, a first transition section of the gear part and a second transition section of the gear part are provided at the joint of the gear part and the support seat body, and the first transition section of the gear part is connected to the second transition section of the gear part.

[0011] As a preferred technical solution of the above technical solution, the number of gear parts is an even number.

[0012] As a preferred technical solution of the above technical solution, the outer edge of the support seat has a support seat positioning groove.

[0013] For the planet carrier disclosed by the present utility model, its beneficial effect lies in that the gear part is strictly centrosymmetrically arranged with respect to the center of the support seat body, avoiding the actual eccentric movement caused by the non-strict centrosymmetric arrangement between the internal gear part and the gear part during the movement process, thereby quickly accumulating relative movement errors and avoiding potential safety hazards caused by the movement disorder of the planet carrier. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a perspective view of one perspective of the present application.

[0015] Figure 2 is a perspective view of another perspective of the present application.

[0016] Figure 3 is the front view of the present application.

[0017] Figure 4 is the side view of the present application.

[0018] Figure 5 is a sectional view along the Figure 4 AA direction of

[0019] Figure 6 is Figure 5 a partial enlarged view of area A in

[0020] The reference numerals include: 100 - support seat; 101 - support seat body; 102 - support seat protruding part; 103 - support seat positioning groove; 120 - internal gear part; 121 - internal convex tooth; 130 - gear part; 131 - gear part main body; 132 - gear part groove; 133 - first transition section of the gear part; 134 - second transition section of the gear part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The present utility model discloses a planet carrier. The following combines with the preferred embodiment (Embodiment 1) and refers to the Figures 1 to 6 of the attached drawings to further describe the specific embodiments of the present utility model.

[0022] Refer to the Figures 1 to 6 of the attached drawings,Figures 1 to 4 The planet carrier is shown from different perspectives respectively, Figure 5 and Figure 6 the partial structure (section structure) of the planet carrier is shown respectively.

[0023] Embodiment 1.

[0024] Preferably, the planet carrier includes a support base 100, an internal tooth portion 120, and a plurality of gear portions 130, where:

[0025] The support base 100 is provided with a support base body 101 and a support base protrusion 102 integrally formed with the support base body 101. The support base protrusion 102 and the gear portions 130 are respectively located on opposite sides of the support base body 101 (the support base protrusion 102 is located on one side of the support base body 101, and all the gear portions 130 are located on the other side of the support base body 101);

[0026] The internal tooth portion 120 is centrally disposed in the support base 100. The internal tooth portion 120 is integrally formed with the support base protrusion 102, and a plurality of adjacent internal convex teeth 121 are provided along the inner surface of the internal tooth portion 120; so that the planet carrier can move coaxially with an internal gear (not shown in the figure) through the internal tooth portion 120;

[0027] The gear portions 130 are symmetrically disposed on the support base body 101. The gear portions 130 are integrally formed with the support base body 101, so that the planet carrier can move synchronously with planet gears (not shown in the figure) through the gear portions 130; the gear portions 130 are strictly centrally symmetrically disposed with respect to the center of the support base body 101 (see Figure 4 in the attached drawings, the distance H from the center of any gear portion 130 to the center of the support base body 101 is strictly the same, and the angle R between the centers of any two adjacent gear portions 130 and the center of the support base body 101 is strictly the same), avoiding the eccentric movement actually caused by the non-strict central symmetry setting in the movement process of the internal tooth portion 120 and the gear portions 130, thereby quickly accumulating relative movement errors and avoiding potential safety hazards caused by the movement disorder of the planet carrier.

[0028] Wherein, the gear portion 130 is provided with a gear portion main body 131, and the end of the gear portion main body 131 has a gear portion groove 132 (the end of the gear portion 131 away from the support base body 101 is recessed inward to form the gear portion groove 132).

[0029] Wherein, at the joint (integrally formed transition region) between the gear portion 130 and the support base body 101, there are provided a gear portion first transition section 133 and a gear portion second transition section 134, and the gear portion first transition section 133 and the gear portion second transition section 134 are connected (i.e., the connection method is integrally formed).

[0030] Among them, the number of gear parts 130 is an even number. Preferably, in Embodiment 1, the number of gear parts 130 is 4.

[0031] Among them, the outer edge of the support base 100 has a support base positioning groove 103 (the outer edge of the support base 100 is recessed inward to form the support base positioning groove 103). Preferably, in Embodiment 1, there is only 1 support base positioning groove 103.

[0032] It is worth mentioning that technical features such as those involved in the patent application of the present utility model should be regarded as the prior art. For the specific structures, working principles, and possible control methods and spatial arrangement methods involved in these technical features, conventional selections in the art can be adopted, and they should not be regarded as the inventive points of the patent of the present utility model. The patent of the present utility model will not be further specifically elaborated.

[0033] For those skilled in the art, it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A planet carrier, characterized in that: It includes a support seat, an internal gear part and a plurality of gear parts, wherein: The support seat is provided with a support seat body and a support seat protrusion integrally formed with the support seat body, and the support seat protrusion and the gear part are respectively located on different sides of the support seat body; The inner tooth portion is centrally arranged on the support seat, the inner tooth portion and the protruding portion of the support seat are integrally formed, and a plurality of adjacent inner protruding teeth are arranged along the inner surface of the inner tooth portion; The gear part is arranged on the support seat body, the gear part and the support seat body are integrally formed, and the gear part is centrally symmetrically arranged relative to the center of the support seat body.

2. The planet carrier according to claim 1, characterized in that: The gear part is provided with a gear part body, and a gear part groove is provided at the end of the gear part body.

3. The planet carrier according to claim 1, characterized in that: A first transition section of the gear part and a second transition section of the gear part are provided at the joint between the gear part and the supporting seat body, and the first transition section of the gear part and the second transition section of the gear part are connected.

4. The planet carrier according to claim 1, characterized in that: The number of gear parts is an even number.

5. The planet carrier according to claim 1, characterized in that: The outer edge of the support seat is provided with a support seat positioning groove.

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