Movable traction box

Abstract

The utility model discloses a movable traction box which comprises an upper box body, a lower box body and a rotating mechanism. The rotating mechanism comprises a rotating inner ring and a rotating outer ring, the rotating outer ring is fixedly connected with the upper box body, the rotating inner ring is fixedly connected with the lower box body, the rotating inner ring is coaxially sleeved with the rotating outer ring, a first annular groove is formed between the outer wall of the rotating inner ring and the inner wall of the rotating outer ring, and a first ball is arranged in the first annular groove; a lower connecting flange is fixed to the lower end of the inner rotating ring, a second annular groove is formed between the lower end face of the outer rotating ring and the upper end face of the lower connecting flange, and second balls are arranged in the second annular groove. The balls are arranged on the side wall and the bottom of the rotating inner ring, so that the integration degree of the traction box is improved, the size of the traction box is reduced, and connection of a traction mechanism is facilitated; and the bearing capacity of the traction box is improved, the wear resistance of the traction box is improved, and the service life of the traction box is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a dragging device technical field especially relates to a movable traction box. BACKGROUND

[0002] The tractor often needs to tow agricultural implements behind the tractor to work, and the traction mechanism can ensure the connection of the agricultural implements and the tractor, on the one hand, to tow the agricultural implements, and on the other hand, to transmit power to the agricultural implements.

[0003] However, the existing traction mechanism has a complex structure and a large size, which is not conducive to the connection of the tractor and the agricultural implements.

[0004] Based on the above technical problems, the present application provides a movable traction box. SUMMARY

[0005] The utility model discloses a movable traction box to solve the technical problems mentioned in the background art, and the utility model discloses a movable traction box through the following technical scheme:

[0006] A movable traction box, comprising an upper box body, a lower box body and a rotating mechanism, the rotating mechanism comprising a rotating inner ring and a rotating outer ring, the rotating outer ring is fixedly connected with the upper box body, the rotating inner ring is fixedly connected with the lower box body, the rotating inner ring is coaxially arranged in the rotating outer ring, a first annular groove is arranged between the outer wall of the rotating inner ring and the inner wall of the rotating outer ring, and a first ball is arranged in the first annular groove; the lower end of the rotating inner ring is fixedly connected with a lower connecting flange, a second annular groove is arranged between the lower end surface of the rotating outer ring and the upper end surface of the lower connecting flange, and a second ball is arranged in the second annular groove.

[0007] Further, the first annular groove has at least two, and the at least two first annular grooves are arranged in an upper and lower manner.

[0008] Further, the lower end surface of the rotating outer ring is provided with a sealing groove, the sealing groove is located on the outer side of the second annular groove, and a sealing ring is installed in the sealing groove.

[0009] The technical scheme provided by the embodiment of the present application has at least the following technical effects or advantages:

[0010] By arranging the balls on the side wall and the bottom of the rotating inner ring, the integration of the traction box is improved, the volume of the traction box is reduced, the connection of the traction mechanism is facilitated, the carrying capacity of the traction box is increased, the wear resistance of the traction box is improved, and the service life of the traction box is increased. BRIEF DESCRIPTION OF DRAWINGS

[0011] The drawings accompanying the specification of the present application serve to provide a further understanding of the present application, the illustrative embodiments of the present application and the explanations thereof serve to explain the present application and do not constitute an improper limitation of the present application.

[0012] Figure 1 is a structural schematic view of an embodiment of the present application;

[0013] Figure 2 is a sectional view of an embodiment of the present application;

[0014] Figure 3 is a structural schematic view of a rotating outer ring of an embodiment of the present application;

[0015] Figure 4 is a structural schematic view of a rotating inner ring of an embodiment of the present application.

[0016] In the drawings, 1 is an upper box body, 2 is a lower box body, 3 is a rotating mechanism, 31 is a rotating outer ring, 311 is an inner groove body, 312 is a lower groove body, 313 is a sealing groove, 32 is a rotating inner ring, 321 is an outer groove body, 322 is an upper groove body, 33 is a first rolling ball, 34 is a second rolling ball, 35 is an upper connecting flange, and 36 is a lower connecting flange. DETAILED DESCRIPTION

[0017] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings and the specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0018] As shown in Figures 1-4 An activity traction box comprises an upper box body 1, a lower box body 2 and a rotating mechanism 3. The rotating mechanism 3 is installed between the upper box body 1 and the lower box body 2, so that the upper box body 1 and the lower box body 2 can rotate relative to each other. The upper box body 1 is fixedly connected with a tractor, and the lower box body 2 is fixedly connected with a farm implement, so as to realize the connection between the farm implement and the tractor. The upper box body 1, the rotating mechanism 3 and the lower box body 2 are in communication with each other, so that the power transmission between the tractor and the farm implement can be realized through a gear mechanism.

[0019] As shown in Figures 2-4As shown, the rotating mechanism 3 comprises a rotating outer ring 31 and a rotating inner ring 32, the upper end of the rotating outer ring 31 is fixed with an upper connecting flange 35, and the rotating outer ring 31 is fixedly connected with the upper box body 1 through the upper connecting flange 35. A reinforcing rib is fixed between the outer wall of the rotating outer ring 31 and the lower end surface of the upper connecting flange 35 to increase the structural strength of the rotating outer ring 31. The rotating inner ring 32 is coaxially installed in the rotating outer ring 31, the lower end of the rotating inner ring 32 is fixed with a lower connecting flange 36, and the rotating inner ring 32 is fixedly connected with the lower box body 2 through the lower connecting flange 36.

[0020] As shown in the figure, Figures 2-4 The inner wall of the rotating outer ring 31 is provided with two annular inner grooves 311, the outer wall of the rotating inner ring 32 is provided with two outer grooves 321 matched with the inner grooves 311, the inner grooves 311 and the outer grooves 321 form a first annular groove, and the first annular groove is filled with first rolling balls 33, so that the rotating outer ring 31 and the rotating inner ring 32 can rotate smoothly.

[0021] As shown in the figure, Figures 2-4 The lower end surface of the rotating outer ring 31 is provided with an annular lower groove 312, the upper end surface of the lower connecting flange 35 is provided with an upper groove 322 matched with the lower groove 312, the lower groove 312 and the upper groove 322 form a second annular groove, and the second annular groove is filled with second rolling balls 34, the second rolling balls 34 are used to support the rotating outer ring 31, thereby increasing the carrying capacity of the traction box.

[0022] As shown in the figure, Figure 3 The lower end surface of the rotating outer ring 31 is provided with a sealing groove 313, the sealing groove 313 is located outside the lower groove 312, and a sealing ring is installed in the sealing groove 313 to prevent the lubricating oil in the traction box from flowing out.

[0023] The technical scheme provided by the embodiment of the application has at least the following technical effects or advantages:

[0024] By arranging the rolling balls on the side wall and the bottom of the rotating inner ring, the integration of the traction box is improved, the volume of the traction box is reduced, the connection of the traction mechanism is facilitated, the carrying capacity of the traction box is increased, the wear resistance of the traction box is improved, and the service life of the traction box is increased.

[0025] 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 presence of the features, steps, operations, devices, components and / or combinations thereof.

[0026] In the description of the utility model, it is understood that the orientation words such as '' front, back, up, down, left, right '' '' horizontal, vertical, perpendicular, horizontal '' and '' top, bottom '' and the like indicated orientation or positional relationship is usually based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, in the case where no contrary statement is made, these orientation words do not indicate and imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, therefore it can not be understood as the limitation of the protection scope of the utility model: the orientation words '' inside, outside '' refer to the inside and outside relative to the contour of each component.

[0027] In addition, it should be noted that the use of '' first, second '' and the like to limit parts is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning if no further declaration, therefore it can not be understood as the limitation of the protection scope of the utility model.

[0028] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, for the person skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A movable traction box, characterized in that, The device includes an upper housing, a lower housing, and a rotating mechanism. The rotating mechanism includes an inner rotating ring and an outer rotating ring. The outer rotating ring is fixedly connected to the upper housing, and the inner rotating ring is fixedly connected to the lower housing. The inner rotating ring is coaxially fitted inside the outer rotating ring. A first annular groove is provided between the outer wall of the inner rotating ring and the inner wall of the outer rotating ring, and a first ball is disposed in the first annular groove. A lower connecting flange is fixed to the lower end of the inner rotating ring, and a second annular groove is formed between the lower end face of the outer rotating ring and the upper end face of the lower connecting flange, and a second ball is disposed in the second annular groove.

2. A movable traction box according to claim 1, characterized in that, There are at least two first annular grooves, and the at least two first annular grooves are arranged vertically.

3. A movable traction box according to claim 1, characterized in that, A sealing groove is provided on the lower end face of the rotating outer ring. The sealing groove is located outside the second annular groove, and a sealing ring is installed in the sealing groove.

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