Simple slewing mechanism

Abstract

The utility model discloses a simple slewing mechanism which comprises a movable end component and a fixed end component, the movable end component comprises a power source and a small gear ring which are installed at the movable end of the slewing mechanism, and the movable end component is fixed through a pressing plate; the fixed end component comprises a large gear ring and a pin shaft which are installed at the fixed end of the swing mechanism, and the large gear ring is fixed to the fixed end of the swing mechanism through the pin shaft. The utility model has the characteristics of light weight and simple structure, and the rotary fixing structure is easy to process and convenient to produce.

Description

Technical Field

[0001] The utility model relates to the field of rotary mechanisms, in particular to a simple rotary mechanism. Background Art

[0002] At present, the boom rotation of the insulated boom truck is mostly an integrated rotary reducer structure, which is large in size and heavy. The front end of the insulated boom truck includes multiple structural parts such as bracket, crank arm, connecting frame, lifting frame, small crane, working bucket outer bucket and inner lining, which are heavy. The arm body of the insulated boom truck is made of fiberglass, which has much lower strength than iron. The front end is heavy and has high requirements for the rigidity of the arm body. Reducing the weight of each structural part can improve the performance to a certain extent.

[0003] Moreover, the existing rotary mechanism adopts a structure in which the inner and outer rings are directly fixed to the shaft through a pin shaft, which has high requirements on the coaxiality of the two holes of the inner and outer rings. When there are two or more holes in the circumference, the relative size requirements are high and the processing difficulty is greater.

[0004] In order to achieve lightweighting of the rotary mechanism and reduce the difficulty of production, it is necessary to develop a new type of rotary mechanism with small structure, light weight and easy processing. Utility Model Content

[0005] Purpose of the utility model: In view of the shortcomings and defects of the existing technology, the utility model provides a simple rotary mechanism with the characteristics of light weight and simple structure, and its rotary fixed structure is easy to process and produce.

[0006] Technical solution: The utility model is a simple rotary mechanism, which is characterized in that it includes a movable end member and a fixed end member, the movable end member includes a power source and a small gear ring installed at the movable end of the rotary mechanism, and the movable end member is fixed by a pressure plate; the fixed end member includes a large gear ring and a pin installed at the fixed end of the rotary mechanism, and the large gear ring is fixed to the fixed end of the rotary mechanism by the pin.

[0007] Among them, a cylindrical structure is provided at the bottom of the movable end component, which is inserted into the fixed end of the rotary mechanism and is axially fixed by a pressure plate.

[0008] The power source at the movable end of the rotary mechanism drives the small gear ring to rotate, thereby driving the movable end to rotate.

[0009] Wherein, the small gear ring is meshingly connected with the large gear ring.

[0010] Wherein, the large gear ring is installed on the fixed end member, and the pin is fixed to the large gear ring by bolts.

[0011] Wherein, the pin shaft passes through the pin shaft hole of the large gear ring and is inserted into the fixed end component.

[0012] Wherein, the power source is an electric motor or a hydraulic motor, and the small gear ring is fixed to the power source through a keyway and bolts.

[0013] Beneficial Effects: Compared with existing technologies, the present invention offers the following significant advantages: The rotary mechanism is simple in structure, easy to assemble, compact in size, rationally designed, and easy to install. This provides improved economic benefits for compact mechanisms subject to low radial forces. The present invention reduces the coaxiality requirement between the large ring gear pin hole and the pin hole on the fixed end member, thus simplifying machining. The invention is lightweight and simple in structure, and its rotary fixed structure is easy to machine and manufacture. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic cross-sectional view of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the large gear ring fixed in the utility model;

[0017] In the figure, 1 is the power source; 2 is the small ring gear; 3 is the movable end member; 4 is the pressure plate; 5 is the large ring gear; 6 is the pin shaft; and 7 is the fixed end member. DETAILED DESCRIPTION

[0018] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0019] The simple rotary mechanism of the present invention includes a movable end member 3 and a fixed end member 7. The movable end member 3 includes a power source 1 and a small ring gear 2 installed at the movable end of the rotary mechanism. The movable end member 3 is fixed by a pressure plate 4. The fixed end member 7 includes a large ring gear 5 and a pin 6 installed at the fixed end of the rotary mechanism. The large ring gear 5 is fixed to the fixed end of the rotary mechanism by the pin 6. Among them, a cylindrical structure is provided at the bottom of the movable end member 3 and is inserted into the fixed end of the rotary mechanism and is axially fixed by a pressure plate 4. The power source 1 at the movable end of the rotary mechanism drives the small ring gear 2 to rotate, thereby driving the movable end to rotate. The small ring gear 2 is meshed with the large ring gear 5 for power transmission. The size of the large and small ring gears is used to adjust the reduction ratio of the rotary mechanism. The power source 1 is an electric motor or a hydraulic motor. The small ring gear 2 is fixed to the power source by a keyway and bolts. The movable end member 3 can be any component that needs to be installed thereon to meet the rotation working conditions.

[0020] The large gear ring 5 of the present invention is mounted on the fixed end member 7, and the pin 6 is fixed to the large gear ring (5) by bolts. The pin 6 passes through the pin hole of the large gear ring 5 and is inserted into the fixed end member 7, which reduces the requirement for the coaxiality of the pin hole of the large gear ring and the pin hole on the fixed end member, thereby reducing the difficulty of processing.

[0021] like Figure 1 、 2 The simple rotary mechanism of the present invention includes a power source: the power source can be a rotary motor or a hydraulic motor; a small ring gear; a movable end member: which can be designed according to the installation requirements of the components to be rotated, and the illustrated structure is only for illustration; a pressure plate: the movable end member is axially fixed to the fixed end member through the pressure plate; a large ring gear; a pin shaft: used to fix the large ring gear to the fixed end member; and a fixed end member.

[0022] like Figure 3 The pin needs to pass through the large gear ring and the fixed end fastener to fix the large gear ring, and cannot contact the inner movable end component. This structure fixes the pin on the large gear ring, and the large gear ring hole is enlarged. There is no assembly relationship between the pin and the large gear ring hole, but it is installed on the large gear ring by bolts. The pin and the hole on the fixed end component are tight fit, which can reduce the coaxiality requirement of the large gear ring hole and the fixed end component hole.

[0023] When the power source outputs power, it drives the small ring gear to rotate, meshing with the large ring gear, thereby driving the movable end member to rotate. The fixed method of the large ring gear greatly reduces the radial clearance between the large ring gear and the fixed end member, improving the rotation response speed and accuracy. The reduction ratio can be adjusted by adjusting the number of teeth on the large and small ring gears to meet different speed and force transmission requirements.

Claims

1. A simple rotary mechanism, characterized in that: The invention comprises a movable end member (3) and a fixed end member (7), wherein the movable end member (3) comprises a power source (1) and a small gear ring (2) installed at the movable end of the rotary mechanism, and the movable end member (3) is fixed by a pressure plate (4); the fixed end member (7) comprises a large gear ring (5) and a pin shaft (6) installed at the fixed end of the rotary mechanism, and the large gear ring (5) is fixed to the fixed end of the rotary mechanism by the pin shaft (6).

2. The simple rotary mechanism according to claim 1, characterized in that: The bottom of the movable end member (3) is provided with a cylindrical structure which is inserted into the fixed end of the rotary mechanism and is axially fixed by a pressing plate (4).

3. The simple rotary mechanism according to claim 1, characterized in that: The power source (1) at the movable end of the rotary mechanism drives the small gear ring (2) to rotate, thereby driving the movable end to rotate.

4. The simple rotary mechanism according to claim 1, characterized in that: The small gear ring (2) is meshingly connected with the large gear ring (5).

5. The simple rotary mechanism according to claim 1, characterized in that: The large gear ring (5) is mounted on the fixed end member (7), and the pin (6) is fixed to the large gear ring (5) by means of bolts.

6. The simple rotary mechanism according to claim 5, characterized in that: The pin shaft (6) passes through the pin shaft hole of the large gear ring (5) and is inserted into the fixed end member (7).

7. The simple rotary mechanism according to claim 1, characterized in that: The power source (1) is an electric motor or a hydraulic motor, and the small gear ring (2) is fixed to the power source through a keyway and bolts.

Images