A novel hollow rotating platform

Abstract

This utility model belongs to the field of rotary platform technology. It discloses a novel hollow rotary platform, comprising: a housing with a front-to-back output shaft mounting cavity and a left-to-right camshaft mounting cavity. The camshaft mounting cavity is located below the output shaft mounting cavity and communicates with it. The camshaft of this utility model is directly connected to the output shaft via a needle roller bearing, thus replacing the structure where a separate cam and input shaft are connected by a key to transmit torque. This results in a hollow rotary platform with stronger load-bearing capacity, easier assembly, and higher transmission accuracy.

Description

Technical Field

[0001] This utility model relates to the field of rotating platform technology, specifically a novel hollow rotating platform. Background Technology

[0002] The hollow rotary platform is an important component of the cam divider. The split cam in the hollow rotary platform is connected to the input shaft by a key to transmit torque. This torque transmission structure has the defects of poor load-bearing capacity and low transmission accuracy. Based on this, we propose a new type of hollow rotary platform. Utility Model Content

[0003] The purpose of this invention is to provide a novel hollow rotating platform to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a novel hollow rotating platform, comprising:

[0005] The housing has a front-to-back output shaft mounting cavity and a left-to-right camshaft mounting cavity. The camshaft mounting cavity is located below the output shaft mounting cavity and is connected to its interior.

[0006] The output shaft is rotatably mounted in the output shaft mounting cavity.

[0007] The camshaft has input eccentric sleeves mounted on its two outer sides for rotation, and the input eccentric sleeves are fixedly installed in the camshaft mounting cavity.

[0008] The needle roller bearing is fixedly mounted on the output shaft. The needle roller bearing cooperates with the camshaft. When the camshaft is rotated, the torque can be directly transmitted to the output shaft through the needle roller bearing to drive the output shaft to rotate.

[0009] Preferably, a tapered roller bearing is fixedly installed between the rear outer side of the output shaft and the side wall of the output shaft mounting cavity, and a turntable bearing is fixedly installed between the front outer side of the output shaft and the side wall of the output shaft mounting cavity.

[0010] Preferably, a front bearing cover that is movably fitted to the outside of the output shaft is fixedly installed on the front side of the housing, and the front bearing cover has a ring structure.

[0011] Preferably, an input bearing is fixedly installed on the inner wall of the input eccentric sleeve and fixedly fitted to the outer side of the camshaft. The input bearing is used to achieve rotatable installation between the camshaft and the input eccentric sleeve.

[0012] Preferably, the output shaft has a hollow internal structure, and both the front and rear ends of the output shaft are open.

[0013] Preferably, the outer side of the camshaft is provided with a curved groove for driving the needle roller bearing to rotate.

[0014] Compared with the prior art, the camshaft of this utility model is directly connected to the output shaft through a needle roller bearing, thereby replacing the structure of a split cam and an input shaft connected by a key to transmit torque. This makes the hollow rotary platform have a stronger load-bearing capacity, easier assembly, and higher transmission accuracy. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the right-side cross-sectional structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the front sectional view of the present invention.

[0018] In the diagram: 1. Housing; 101. Output shaft mounting cavity; 102. Camshaft mounting cavity; 2. Output shaft; 3. Front bearing cover; 4. Turntable bearing; 5. Tapered roller bearing; 6. Camshaft; 7. Needle roller bearing; 8. Input eccentric sleeve; 9. Input bearing. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1 to 3 As shown in this embodiment, a novel hollow rotating platform includes:

[0021] The housing 1 has an output shaft mounting cavity 101 arranged in the front-to-back direction, and a camshaft mounting cavity 102 arranged in the left-to-right direction. The camshaft mounting cavity 102 is located below the output shaft mounting cavity 101 and is connected to its interior.

[0022] Output shaft 2 is rotatably mounted in output shaft mounting cavity 101. The same tapered roller bearing 5 is fixedly mounted between the rear outer side of output shaft 2 and the side wall of output shaft mounting cavity 101, and the same turntable bearing 4 is fixedly mounted between the front outer side of output shaft 2 and the side wall of output shaft mounting cavity 101.

[0023] The camshaft 6 has an input eccentric sleeve 8 rotatably mounted on both sides of its outer side. The input eccentric sleeve 8 is fixedly mounted in the camshaft mounting cavity 102. An input bearing 9 is fixedly mounted on the inner side wall of the input eccentric sleeve 8 and is fixedly fitted to the outer side of the camshaft 6. The input bearing 9 is used to achieve rotatable mounting between the camshaft 6 and the input eccentric sleeve 8.

[0024] The needle roller bearing 7 is fixedly mounted on the output shaft 2. The needle roller bearing 7 cooperates with the camshaft 6. The outer side of the camshaft 6 is provided with a curved groove for driving the needle roller bearing 7 to rotate. When the camshaft 6 is rotated, it can directly transmit torque to the output shaft 2 through the needle roller bearing 7 to drive the output shaft 2 to rotate.

[0025] In this embodiment, when the camshaft 6 is driven to rotate by the motor, the camshaft 6 drives the needle roller bearing 7 to rotate 360° through the curved groove on its outer side. Since the needle roller bearing 7 is fixedly installed on the output shaft 2, it drives the output shaft 2 to rotate.

[0026] The camshaft 6 is directly connected to the output shaft 2 via the needle roller bearing 7, thus replacing the structure of the split cam and the input shaft being connected by a key to transmit torque. This makes the hollow rotary platform more load-bearing, easier to assemble, and has higher transmission accuracy.

[0027] The load-bearing capacity of this hollow rotary platform is greatly improved by the use of slewing bearing 4 and tapered roller bearing 5.

[0028] Furthermore, a front bearing cover 3 is fixedly installed on the front side of the housing 1 and is movably fitted to the outside of the output shaft 2. The front bearing cover 3 has a ring structure.

[0029] In this embodiment, the front bearing cap 3 is provided to provide preload to the turntable bearing 4 at the front.

[0030] Furthermore, the output shaft 2 has a hollow internal structure, and both its front and rear ends are open.

[0031] In this embodiment, the output shaft 2 is internally hollow. The output shaft 2 can be facilitated by using wire-passing fixtures, bar-passing fixtures, or connecting fixtures to achieve multi-mechanism linkage.

[0032] The usage method of this embodiment is as follows: When the camshaft 6 is driven by the motor to rotate, the camshaft 6 drives the needle roller bearing 7 to rotate 360° through the curved groove on its outer side. Since the needle roller bearing 7 is fixedly installed on the output shaft 2, it drives the output shaft 2 to rotate.

[0033] The camshaft 6 is directly connected to the output shaft 2 via the needle roller bearing 7, thus replacing the structure of the split cam and the input shaft being connected by a key to transmit torque. This makes the hollow rotary platform more load-bearing, easier to assemble, and has higher transmission accuracy.

[0034] By installing the turntable bearing 4 and the tapered roller bearing 5 between the output shaft 2 and the side wall of the output shaft mounting cavity 101, the load-bearing capacity of this hollow rotary platform is greatly improved.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel hollow rotating platform, characterized in that: include: The housing (1) has an output shaft mounting cavity (101) arranged in the front-to-back direction, and a camshaft mounting cavity (102) arranged in the left-to-right direction. The camshaft mounting cavity (102) is located below the output shaft mounting cavity (101) and is connected to its interior. The output shaft (2) is rotatably mounted in the output shaft mounting cavity (101); The camshaft (6) has an input eccentric sleeve (8) mounted on both sides of its outer side, and the input eccentric sleeve (8) is fixedly installed in the camshaft mounting cavity (102); The needle roller bearing (7) is fixedly installed on the output shaft (2). The needle roller bearing (7) cooperates with the camshaft (6). When the camshaft (6) is rotated, it can directly transmit torque to the output shaft (2) through the needle roller bearing (7) to drive the output shaft (2) to rotate.

2. The novel hollow rotating platform according to claim 1, characterized in that: The same tapered roller bearing (5) is fixedly installed between the rear outer side of the output shaft (2) and the side wall of the output shaft mounting cavity (101), and the same turntable bearing (4) is fixedly installed between the front outer side of the output shaft (2) and the side wall of the output shaft mounting cavity (101).

3. A novel hollow rotating platform according to claim 1, characterized in that: The front side of the housing (1) is fixedly installed with a front bearing cover (3) that is movably fitted to the outside of the output shaft (2). The front bearing cover (3) has a ring structure.

4. A novel hollow rotating platform according to claim 1, characterized in that: An input bearing (9) is fixedly installed on the inner wall of the input eccentric sleeve (8) and is fixedly fitted to the outer side of the camshaft (6). The input bearing (9) is used to achieve rotational installation between the camshaft (6) and the input eccentric sleeve (8).

5. A novel hollow rotating platform according to claim 1, characterized in that: The output shaft (2) has a hollow interior and both the front and rear ends are open.

6. A novel hollow rotating platform according to claim 1, characterized in that: The outer side of the camshaft (6) is provided with a curved groove for driving the needle roller bearing (7) to rotate.

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