Split type planet carrier

Abstract

The utility model relates to the technical field of planet carriers, and discloses a split type planet carrier which comprises a shaft end cover, a rear end cover is fixedly connected to the shaft end cover, a plurality of limiting rings are correspondingly arranged on the shaft end cover and the rear end cover, and rubber sleeves are filled between the limiting rings and the corresponding shaft end cover or the rear end cover. The inner wall of the limiting ring is in threaded connection with an adjusting wheel, a mounting hole is formed in the adjusting wheel in the axial direction in a penetrating mode, the mounting hole and the limiting ring are eccentrically arranged, and a planet wheel shaft is jointly fixed to the corresponding mounting holes in the shaft end cover and the rear end cover. The device solves the problems that the outer side of the mounting hole site on the end cover is arranged to be in a bent hollow shape, the structural strength is reduced, and load balancing and service life cannot be considered at the same time, the axle distance of the axle is changed through the adjusting wheel of the eccentric structure, the axle distance can be manually adjusted, and the service life of the device is not affected while uniform load is guaranteed.

Description

TECHNICAL FIELD

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

[0002] The planet carrier is used for installing the planet gear, and is one of main components of the planet gear transmission device, and has a great influence on load distribution among the planet gears, carrying capacity of the transmission device, noise and vibration and the like. Due to machining errors and assembly errors, uneven stress often occurs in the actual working process of the planet gear. Such uneven load can reduce the working efficiency, and even can cause the gear overload fracture, and affect the service life.

[0003] The Chinese invention patent with the application number 202411492130.1 discloses an elastic buffer planet carrier and a speed reducer, wherein the part of the planet carrier connected with the planet wheel shaft is provided with a curved elastic buffer device, and has a certain deformation capacity, so that the impact on the shaft body and the gear can be reduced through buffering when different loads are borne in the running process, thereby avoiding damage. However, the elastic buffer device reduces the overall structural strength of the planet carrier, and is prone to deformation or even fracture after long-term use. UTILITY MODEL CONTENT

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a split type planet carrier capable of adjusting the wheelbase and being durable.

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

[0006] A split type planet carrier, comprising a shaft end cover, a rear end cover is fixedly connected to the shaft end cover, a plurality of limiting rings are correspondingly arranged on the shaft end cover and the rear end cover, a rubber sleeve is filled between the limiting ring and the corresponding shaft end cover or rear end cover, an adjusting wheel is threadedly connected to the inner wall of the limiting ring, an installation hole is axially and vertically formed in the adjusting wheel, the installation hole and the limiting ring are eccentrically arranged, and a planet wheel shaft is fixedly connected to the corresponding installation holes of the shaft end cover and the rear end cover.

[0007] The utility model is further provided with the following arrangement: clamping edges are arranged on both sides of the limiting ring, the clamping edges on both sides are respectively attached to two end faces of the corresponding shaft end cover or rear end cover, a plurality of limiting columns are arranged on one of the end faces, a limiting groove is radially formed in the clamping edge, and the limiting column and the limiting groove are slidably connected.

[0008] The utility model further sets up: the outer wall of adjusting wheel is provided with outer thread and thread groove, outer thread and thread groove are separately arranged at both ends of adjusting wheel, the rotation direction of outer thread and thread groove is opposite, the outer thread is linked with limit ring, the other half of limit ring inner wall is set up as taper surface, the thread groove is connected with locking ring, the outer wall of locking ring abuts with the taper surface of limit ring.

[0009] The utility model further sets up: the locking ring includes extrusion cover, the extrusion cover is cone frustum, the inner wall of extrusion cover is connected with thread groove, a plurality of shrinkage grooves are evenly opened to the extrusion cover along the axial direction, the big base surface end of extrusion cover cone frustum is provided with ring edge.

[0010] The utility model further sets up: the end face of adjusting wheel and ring edge all are provided with a plurality of blind holes.

[0011] The utility model has the advantages of:

[0012] The both ends of planetary gear shaft are sleeved with adjusting wheel, the hole position of both sides end cover is provided with limit ring, limit ring is clamped with limit column, can only be displaced along the radial direction on limit column, limit ring and end cover are filled with rubber sleeve, can provide certain allowance for limit ring displacement, adjusting wheel and limit ring inner wall are connected with thread, the mounting hole of adjusting wheel installation planetary gear shaft is arranged eccentric with limit ring, when rotating adjusting wheel, can change the axle of planetary gear shaft, thereby can adjust the meshing condition according to the actual installation gear size, ensure that the load is uniform while not affecting the strength of planetary carrier whole, ensure the service life. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is an embodiment structure schematic drawing of the utility model;

[0014] Figure 2 It is along Figure 1 It is the B-B line section view shown in;

[0015] Figure 3 It is Figure 1 It is the A part enlarged view shown in;

[0016] Figure 4 It is Figure 2 It is the C part enlarged view shown in;

[0017] Figure 5 It is adjusting wheel structure schematic drawing of the utility model;

[0018] Figure 6 It is Figure 5 It is the front view shown in;

[0019] Figure 7 It is locking ring structure schematic drawing of the utility model;

[0020] In the figure: 1, shaft end cover; 2, rear end cover; 3, planetary gear shaft; 4, adjusting wheel; 41, external thread; 42, threaded groove; 43, mounting hole; 5, locking ring; 51, ring edge; 52, extrusion sleeve; 53, contraction groove; 6, limiting ring; 61, clamping edge; 62, limiting groove; 7, rubber sleeve; 8, limiting column. DETAILED DESCRIPTION

[0021] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0022] 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.

[0023] In the present application, unless otherwise stated, the orientation such as "up, down" is generally with respect to the direction shown in the drawings, or with respect to the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left, right" is generally with respect to the left and right shown in the drawings; "inner, outer" refers to the inner and outer of the contour of each component itself, but the above orientation words are not used to limit the present application.

[0024] Please refer to Figures 1-7 The present application provides the following technical solutions:

[0025] A split type planet carrier, comprising a shaft end cover 1, the shaft end cover 1 is fixedly connected with a rear end cover 2, forming a planet carrier as a whole, a plurality of hole positions for mounting planetary gears are correspondingly provided on the shaft end cover 1 and the rear end cover 2, a limiting ring 6 is correspondingly provided in all hole positions, clamping edges 61 are provided on both sides of the limiting ring 6, the two clamping edges 61 respectively abut two end faces of the corresponding shaft end cover 1 or rear end cover 2, a plurality of limiting columns 8 are provided on one end face of the shaft end cover 1 and one end face of the rear end cover 2, limiting grooves 62 are radially provided on the clamping edges 61, the limiting columns 8 and the limiting grooves 62 are slidably connected, the limiting ring 6 can be displaced in the hole position, the limiting ring 6 and the corresponding shaft end cover 1 or rear end cover 2 are filled with a rubber sleeve 7, the rubber sleeve 7 provides a margin for the displacement of the limiting ring 6, and the limiting groove 62 and the limiting column 8 relatively slide when the limiting ring 6 moves, the limiting ring 6 can only be radially displaced on the limiting column 8, that is, the limiting ring 6 cannot rotate in the hole position;

[0026] The inner wall of the limiting ring 6 is threadedly connected with an adjusting wheel 4, the adjusting wheel 4 is provided with a mounting hole 43 penetrating through in the axial direction, the mounting hole 43 is eccentrically arranged with the limiting ring 6, the corresponding mounting holes 43 on the shaft end cover 1 and the rear end cover 2 are fixed with a planetary wheel shaft 3, rotating the adjusting wheel 4 can drive the planetary wheel shaft 3 to move, so that the shaft distance between the planetary wheel and each gear changes, thereby adjusting the meshing condition to balance the load on the gear according to the actual size;

[0027] When the gears on both sides are unevenly stressed, the limiting ring 6 will be displaced on the limiting column 8, thereby facilitating observation and adjustment, and the rubber sleeve 7 can provide a certain buffer for the planetary wheel shaft 3 during operation of the gear set, avoiding the load deviation caused by accidental shaft distance deviation, ensuring the structural strength of the planetary carrier while realizing the shaft distance adjustment, ensuring the transmission efficiency while prolonging the service life of each structure.

[0028] The outer wall of the adjusting wheel 4 is provided with external threads 41 and a threaded groove 42, the external threads 41 and the threaded groove 42 are arranged at both ends of the adjusting wheel 4, the external threads 41 and the threaded groove 42 are opposite in rotation direction, the external threads 41 are connected with the limiting ring 6, the other half of the inner wall of the limiting ring 6 is provided as a tapered surface, the threaded groove 42 is threadedly connected with a locking ring 5, the outer wall of the locking ring 5 abuts against the tapered surface of the limiting ring 6;

[0029] The locking ring 5 comprises an extrusion sleeve 52, the extrusion sleeve 52 is in the shape of a truncated cone, the inner wall of the extrusion sleeve 52 is threadedly connected with the threaded groove 42, a plurality of contraction grooves 53 are uniformly and axially provided on the extrusion sleeve 52, and the large bottom surface end of the extrusion sleeve 52 in the shape of a truncated cone is provided with a ring edge 51;

[0030] After the adjusting wheel 4 is adjusted in place, the locking ring 5 is screwed in, the contraction grooves 53 are extruded, the inner wall of the extrusion sleeve 52 is tightly pressed against the adjusting wheel 4, and the outer wall of the extrusion sleeve 52 is tightly abutted against the tapered surface of the limiting ring 6, thereby ensuring that the adjusting wheel 4 and the limiting ring 6 are fixed to each other;

[0031] The rotation direction of the external threads 41 and the threaded groove 42 is opposite, and the extrusion sleeve 52 cooperates to strengthen the connection between the adjusting wheel 4 and the limiting ring 6, so that the adjusting wheel 4 will not be displaced due to vibration during operation, thereby ensuring the stability of the shaft distance between the gears.

[0032] A plurality of blind holes are provided on the end face of the adjusting wheel 4 and the ring edge 51, an operating tool is inserted into the blind hole, the adjusting wheel 4 and the locking ring 5 can be rotated by the tool, and redundant structures are avoided.

[0033] Specifically, the two ends of the planetary wheel shaft 3 are sleeved with adjusting wheels 4, the hole positions of the two side end covers are provided with limiting rings 6, the limiting rings 6 are clamped with limiting columns 8 and can only be displaced along the radial direction on the limiting columns 8, the limiting rings 6 and the end covers are filled with rubber sleeves 7, which can provide a certain allowance for the displacement of the limiting rings 6, the adjusting wheels 4 are in threaded connection with the inner walls of the limiting rings 6, the mounting holes 43 of the adjusting wheels 4 and the limiting rings 6 are eccentrically arranged, when the adjusting wheels 4 are rotated, the shaft center of the planetary wheel shaft 3 can be changed, so that the meshing condition can be adjusted according to the actual installed gear size, the load uniformity is ensured, the strength of the planetary carrier as a whole is not affected, and the service life is ensured.

[0034] 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.

[0035] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, work, device, component and / or combination thereof.

[0036] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0037] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A split type planet carrier comprising a shaft end cover (1), a rear end cover (2) is fixedly connected on the shaft end cover (1), characterized in that: The shaft end cover (1) and the rear end cover (2) are provided with a plurality of limiting rings (6) correspondingly, the limiting rings (6) and the corresponding shaft end cover (1) or rear end cover (2) are filled with rubber sleeves (7), the inner wall of the limiting ring (6) is threadedly connected with an adjusting wheel (4), the adjusting wheel (4) is provided with a mounting hole (43) penetrating in the axial direction, the mounting hole (43) is eccentrically arranged with the limiting ring (6), and the corresponding mounting holes (43) on the shaft end cover (1) and the rear end cover (2) are fixed with a planetary wheel shaft (3).

2. The split planetary carrier of claim 1, wherein: The limiting ring (6) is provided with clamping edges (61) on both sides, and the clamping edges (61) on both sides are respectively attached to two end faces of the corresponding shaft end cover (1) or rear end cover (2), one of the end faces is provided with a plurality of limiting columns (8), the clamping edges (61) are provided with limiting grooves (62) in the radial direction, and the limiting columns (8) and the limiting grooves (62) are in sliding connection.

3. A split planetary carrier according to claim 2, characterized in that: The outer wall of the adjusting wheel (4) is provided with external threads (41) and threaded grooves (42), the external threads (41) and the threaded grooves (42) are arranged at two ends of the adjusting wheel (4), the external threads (41) and the threaded grooves (42) are opposite in rotation direction, the external threads (41) are connected with the limiting ring (6), the other half of the inner wall of the limiting ring (6) is provided as a tapered surface, the threaded grooves (42) are threadedly connected with a locking ring (5), and the outer wall of the locking ring (5) abuts against the tapered surface of the limiting ring (6).

4. The split planetary carrier of claim 3, wherein: The locking ring (5) comprises an extrusion sleeve (52), the extrusion sleeve (52) is in the shape of a truncated cone, the inner wall of the extrusion sleeve (52) is threadedly connected with the threaded groove (42), a plurality of contraction grooves (53) are uniformly and axially penetrated in the extrusion sleeve (52), and the large bottom surface end of the extrusion sleeve (52) in the shape of a truncated cone is provided with a ring edge (51).

5. A split planetary carrier according to claim 4, characterized in that: The end face of the adjusting wheel (4) and the ring edge (51) are provided with a plurality of blind holes.

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