Cantilever type planet carrier

Abstract

The utility model relates to the technical field of planet carriers, and discloses a cantilever type planet carrier which comprises a carrier body, a shaft neck is arranged at one end of the carrier body, a plurality of planet wheel shafts and a plurality of reinforcing columns are evenly arranged at the other end of the carrier body, the planet wheel shafts and the reinforcing columns are arranged at intervals, and extrusion frames are arranged on the reinforcing columns. An end cover is jointly installed on the extrusion frames, extrusion blocks are installed in the extrusion frames in a pressed mode, the extrusion blocks press the extrusion frames on the end cover, a plurality of screws are installed on the side face of the end cover in the radial direction, and the screws are jointly connected with the end cover, the extrusion frames and the extrusion blocks. According to the device, the problem that the connection stability is affected when screws are abraded due to long-term use is solved, the screws are changed into auxiliary fixing parts, the extrusion frame is pressed and attached to the end cover through the extrusion blocks, the extrusion frame is clamped to the end cover in an open shape, the connection area is increased, the connection strength is improved, and therefore abrasion is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of planet carrier, more specifically, it relates to a cantilever type planet carrier. BACKGROUND

[0002] The cantilever type planet carrier is a single-sided connection structure with a shaft journal on one side, and is one of main components of a planetary gear transmission device, used for mounting planet gears. The cantilever type planet carrier has high installation and positioning requirements for an end cover and planet gear shafts, so as to ensure the precision and stability of transmission of the planet gears and other structures in the gear train.

[0003] The utility model discloses a cantilever type planet carrier with detachable side plates, which is provided with a groove on the frame body, and a boss is correspondingly provided on the side plate. During installation, the groove and the boss are matched, and are connected through screws from the circumferential side, which facilitates assembly and reduces the shear force of the screws during the operation of the planet gear train. However, the frame body and the side plate are only fixed through screws, and the connecting surfaces are prone to wear after long-term use, thereby affecting the stability of the connection between the frame body and the side plate and ultimately affecting the operation of the gear. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a cantilever type planet carrier that is not prone to wear.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A cantilever type planet carrier includes a frame body, one end of the frame body is provided with a shaft journal, the other end of the frame body is uniformly provided with a plurality of planet gear shafts and a plurality of reinforcing columns, the planet gear shafts and the reinforcing columns are arranged at intervals, an extrusion frame is arranged on the reinforcing column, an end cover is mounted on all the extrusion frames, an extrusion block is press-fitted in the extrusion frame, the extrusion block presses the extrusion frame against the end cover, a plurality of screws are installed on the side of the end cover along the radial direction, and the screws connect the end cover, the extrusion frame and the extrusion block.

[0007] The utility model is further provided as follows: the extrusion frame is a frame structure with an open end, the opening of the extrusion frame is arranged at the end away from the reinforcing column, and expansion grooves are formed on the four sides of the extrusion frame perpendicular to the end cover.

[0008] The utility model is further provided as follows: a connecting groove is correspondingly arranged on the end cover, the connecting groove is in the shape of a quadrangular prism, the small end face of the connecting groove in the shape of a quadrangular prism is on the side facing the frame body, and the extrusion block is in the shape of a quadrangular prism corresponding to the connecting groove.

[0009] The utility model is further provided as follows: the extrusion frame can extend into the connecting groove from the small end face of the connecting groove.

[0010] The utility model further sets up: the corresponding position of end cover, extrusion frame and extrusion block are all set with connecting hole, the one end of connecting hole in end cover sets up as threaded hole, the screw corresponds and is installed in connecting hole, the screw is countersunk screw.

[0011] The utility model has the advantages of:

[0012] Extrusion frame is set up on the reinforced column, and expansion grooves are set up on the four edges of the extrusion frame, the extrusion frame is a frame structure with one side opening, a connecting groove is set up on the end cover, the extrusion frame extends into the connecting groove, and an extrusion block is pressed into the extrusion frame, the extrusion block and the connecting groove are both quadrangular prisms, the extrusion block presses the four edges of the extrusion frame towards the groove wall of the connecting groove, so that the connecting frame is clamped in the connecting groove in an open state, the end cover, the extrusion frame and the extrusion block are connected by the screw, so that the extrusion frame maintains the state of being clamped with the end cover, the connecting area of the frame body and the end cover is increased, the connecting strength is improved, and the wear of the connecting surface is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of an embodiment of the utility model;

[0014] Figure 2 It is a structural schematic view of a frame body of the utility model;

[0015] Figure 3 It is a sectional view along Figure 1 The A-A line shown in the figure;

[0016] Figure 4 It is a sectional view along Figure 2 The B part shown in the figure is an enlarged view;

[0017] Figure 5 It is a sectional view along Figure 3 The C part shown in the figure is an enlarged view;

[0018] In the figure: 1, frame body;11, planetary gear shaft;12, reinforced column;13, extrusion frame;14, connecting hole;15, expansion groove;2, end cover;3, extrusion block;4, screw. DETAILED DESCRIPTION

[0019] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0020] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0021] In the utility model, in the case that no opposite statement is made, the orientation such as "up, down" is usually for the direction shown in the drawing, or for the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left, right" is usually for the left, right shown in the drawing; "inner, outer" refers to the inner, outer relative to the contour of each component itself, but the above orientation words are not used to limit the utility model.

[0022] Please refer to Figures 1-5 The utility model provides the following technical scheme:

[0023] A cantilever type planet carrier, including frame body 1, one end of frame body 1 is provided with journal, the other end of frame body 1 is uniformly provided with a plurality of planet wheel shafts 11 and a plurality of reinforcing columns 12, a plurality of planet wheel shafts 11 are spaced apart from a plurality of reinforcing columns 12, planet wheel shaft 11 is used to install planet wheel, reinforcing column 12 is used to connect end cover 2, and the connecting strength between frame body 1 and end cover 2 is guaranteed;Reinforcing column 12 is provided with extrusion frame 13, all extrusion frames 13 are jointly installed with end cover 2, extrusion block 3 is pressure assembled in extrusion frame 13, extrusion block 3 is pressed on end cover 2 on extrusion frame 13, so that extrusion frame 13 is claw-shapedly clamped in end cover 2, end cover 2 is connected with frame body 1 through extrusion frame 13, the connecting area is increased, and the connecting strength is improved, so as to reduce abrasion, the side surface of end cover 2 is radially installed with a plurality of screws 4, and the screws 4 are jointly connected with end cover 2, extrusion frame 13 and extrusion block 3, so that extrusion block 3 and extrusion frame 13 maintain the pressed state, and end cover 2 is stably connected with frame body 1.

[0024] Extrusion frame 13 is a frame structure with one end opening, the opening of extrusion frame 13 is arranged at one end away from reinforcing column 12, and expansion grooves 15 are formed in the four edges of extrusion frame 13 perpendicular to end cover 2.

[0025] Corresponding connecting grooves are formed in end cover 2, the connecting grooves are quadrangular frustum shapes, the small end faces of the quadrangular frustum shapes of the connecting grooves are on the side facing frame body 1, extrusion block 3 is a quadrangular frustum shape corresponding to the connecting grooves, extrusion frame 13 can extend into the connecting grooves from the small end faces of the connecting grooves, and when extrusion block 3 is pressure assembled into extrusion frame 13, the four edges of extrusion frame 13 are extruded and fitted with the groove walls of the connecting grooves, that is, when extrusion block 3 is pressure assembled in place, extrusion frame 13 is claw-shapedly clamped in the connecting grooves in an open state, end cover 2 is pressed towards frame body 1, so that the connecting strength is improved, and the friction of the connecting surface is reduced.

[0026] Connecting holes 14 are formed in the corresponding positions of end cover 2, extrusion frame 13 and extrusion block 3, one end of the connecting holes 14 in end cover 2 is provided with a threaded hole, and screws 4 are correspondingly installed in the connecting holes 14, the screws 4 are countersunk head screws, and the screws 4 are only used to maintain the pressure bonding state of extrusion block 3 and extrusion frame 13.

[0027] Specifically, the extrusion frame 13 is arranged on the reinforcing column 12, expansion grooves 15 are arranged on four sides of the extrusion frame 13, the extrusion frame 13 is a frame structure with one side open, a connecting groove is arranged on the end cover 2 in correspondence, the extrusion frame 13 extends into the connecting groove, the extrusion block 3 is press-connected in the extrusion frame 13, the extrusion block 3 and the connecting groove are all quadrangular prisms, the extrusion block 3 presses the four sides of the extrusion frame 13 to the groove walls of the connecting groove, so that the connecting frame 13 is clamped in the connecting groove in an open state, the end cover 2, the extrusion frame 13 and the extrusion block 3 are connected through the screw 4, so that the extrusion frame 13 maintains the clamped state with the end cover 2, the connecting area of the frame body 1 and the end cover 2 is increased, and the connecting strength is improved, so that the wear of the connecting surface is reduced.

[0028] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the present application.

[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0030] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present application are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the use of these terms in the description and in the claims of the present application is merely to distinguish one feature from another feature and not necessarily to describe a particular sequential or chronological order.

[0031] The preferred embodiments of the present application have been described above with the preferred embodiments; however, all the changes and variations that can be made on the basis of the principles of the present application without departing from the spirit and principles thereof fall within the scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the scope of the present application.

Claims

1. A cantilevered planet carrier comprising a carrier body (1), characterized in that: One end of the frame body (1) is provided with a journal, the other end of the frame body (1) is uniformly provided with a plurality of planetary gear shafts (11) and a plurality of reinforcing columns (12), a plurality of planetary gear shafts (11) and a plurality of reinforcing columns (12) are arranged at intervals, the reinforcing column (12) is provided with an extrusion frame (13), all the extrusion frames (13) are commonly provided with an end cover (2), the extrusion frame (13) is press-fitted with an extrusion block (3), the extrusion block (3) presses the extrusion frame (13) against the end cover (2), the side of the end cover (2) is radially provided with a plurality of screws (4), the screws (4) commonly connect the end cover (2), the extrusion frame (13) and the extrusion block (3).

2. A cantilevered planet carrier according to claim 1, characterized in that: The extrusion frame (13) is a frame structure with one end open, the opening of the extrusion frame (13) is arranged at one end away from the reinforcing column (12), and expansion grooves (15) are formed in the four edges of the extrusion frame (13) perpendicular to the end cover (2).

3. A cantilevered planet carrier according to claim 2, characterized in that: The end cover (2) is correspondingly provided with a connecting groove, the connecting groove is in the shape of a quadrangular frustum, the small end face of the connecting groove is on the side facing the frame body (1), and the extrusion block (3) is in the shape of a quadrangular frustum corresponding to the connecting groove.

4. A cantilevered planet carrier according to claim 3, characterized in that: The extrusion frame (13) can extend into the connecting groove from the small end face of the connecting groove.

5. A cantilevered planet carrier according to claim 4, characterized in that: Corresponding positions of the end cover (2), the extrusion frame (13) and the extrusion block (3) are commonly provided with connecting holes (14), one end of the connecting hole (14) in the end cover (2) is provided with a threaded hole, the screw (4) is correspondingly arranged in the connecting hole (14), and the screw (4) is a countersunk screw.

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