A planetary cement mortar mixer

Abstract

This utility model discloses a planetary cement mortar mixer, relating to the field of planetary mixers for cement mortar. It includes a hollow top cover with an open bottom. A rotary motor is fixedly installed at the center of the top of the top cover. A planetary gear mechanism connected to the output shaft of the rotary motor is installed inside the top cover. A mixing mechanism is fixedly installed at the output end of the planetary gear mechanism. A rotating cover is rotatably installed above the bottom opening of the top cover. An upwardly protruding rotating ring is integrally formed on the top of the bottom plate of the top cover, and multiple ball bearings are movably connected to the top of the rotating ring. This utility model, by incorporating a lubrication mechanism, ensures sufficient contact between the lubricating oil and the ball bearings, providing ample lubricating oil to the surface of the ball bearings at all times. This prevents deformation caused by increased friction due to depletion of lubricating oil on the ball bearing surface.

Description

Technical Field

[0001] This utility model relates to the field of planetary mixers for cement mortar, specifically a planetary cement mortar mixer. Background Technology

[0002] A planetary mixer is a device that uses the meshing of a stationary gear and a rotating gear to achieve the simultaneous revolution and rotation of the rotating gear on its own axis, thereby enabling the outer agitator to rotate on its own axis while revolving around the sun.

[0003] In the prior art, in order to reduce the rotational friction of the rotating cover, ball bearings are usually installed at the top cover position supporting the rotating cover. However, as the ball bearings rotate for a long time, the lubricating oil on their surface is gradually consumed. At this time, the ball bearings are prone to deformation under high-speed friction, resulting in unstable rotation of the rotating cover. Utility Model Content

[0004] The purpose of this utility model is to provide a planetary cement mortar mixer in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a planetary cement mortar mixer, comprising a hollow top cover with an open bottom, a rotary motor fixedly installed at the center of the top of the top cover, a planetary gear mechanism connected to the output shaft of the rotary motor installed inside the top cover, a mixing mechanism fixedly installed at the output end of the planetary gear mechanism, a rotating cover rotatably installed above the bottom opening of the top cover, an upwardly protruding rotating ring integrally formed on the top of the bottom plate of the top cover, a plurality of ball bearings movably connected to the top of the rotating ring, and a lubrication mechanism that penetrates the rotating cover and communicates with the outer periphery of the ball bearings installed in the inner cavity of the top cover.

[0006] As a further embodiment of this utility model: the stirring mechanism includes a central stirrer fixedly installed at the bottom end of the output shaft of the rotary motor, the central stirrer extending downward, and a plurality of peripheral stirrers extending from above the rotating cover to below the rotating cover. The plurality of peripheral stirrers are equidistantly distributed circumferentially around the central stirrer. The peripheral stirrers are rotatably connected to the rotating cover, and the central stirrer is rotatably connected to the rotating cover. A sealing element is installed at the rotatable connection between the central stirrer, the peripheral stirrers, and the rotating cover.

[0007] As a further embodiment of this utility model: the planetary mechanism includes a stationary gear that is fixedly installed on the top of the inner wall of the top cover and extends downward by a bracket. Below the stationary gear is a planetary carrier that is fixedly installed on the outer periphery of the central stirrer. Multiple outer peripheral ends of the planetary carrier are rotatably connected to the outer periphery of the outer peripheral stirrer. A rotating gear is fixedly installed on the top of the outer peripheral stirrer. Multiple rotating gears mesh with the stationary gear.

[0008] As a further embodiment of this utility model: the lubrication mechanism includes an intercepting net fixedly installed on the top of the rotating cover and extending upward, the top of the intercepting net contacting the bottom of the top plate of the top cover, and a sealing ring is installed between the top of the intercepting net and the top plate of the top cover.

[0009] As a further embodiment of this utility model: the lubrication mechanism further includes a lubrication hole that is recessed downward at the top of the rotating cover. The lubrication hole is located on the outer periphery of the interception net. The rotating cover has a groove for the rotating ring and the ball to rotate inside. The bottom end of the lubrication hole is connected to the inner cavity of the groove.

[0010] As a further improvement of this utility model: a sealing ring is installed at the contact position between the rotating cover and the top cover, and oil holes are opened in the top plate of the top cover and the interior of the rotating cover. The oil holes are located on the inner circumference of the interception net, and the inner wall of the oil holes is plugged with a rubber sealing plug.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. By setting up a lubrication mechanism, the lubricating oil can be fully contacted with the balls, and sufficient lubricating oil can always be provided to the surface of the balls, thereby avoiding deformation caused by increased friction due to the depletion of lubricating oil on the surface of the balls. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0015] Figure 3 For the present utility model Figure 2 Enlarged view of a portion of point A in the middle;

[0016] Figure 4 For the present utility model Figure 2 Enlarged view of section B in the middle.

[0017] In the diagram: 1. Top cover; 2. Rotary motor; 3. Central agitator; 4. Outer agitator; 5. Rotating cover; 6. Interceptor net; 7. Rubber sealing plug; 8. Stationary gear; 9. Planetary carrier; 10. Rotating gear; 11. Ball bearing; 12. Lubrication hole; 13. Rotating ring. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1-4 In this embodiment of the present invention, a planetary cement mortar mixer includes a hollow top cover 1 with an open bottom. A rotary motor 2 is fixedly installed at the center of the top of the top cover 1. A planetary gear mechanism connected to the output shaft of the rotary motor 2 is installed inside the top cover 1. A mixing mechanism is fixedly installed at the output end of the planetary gear mechanism. A rotating cover 5 is rotatably installed above the bottom opening of the top cover 1. A rotating ring 13 protruding upward is integrally formed on the top of the bottom plate of the top cover 1. A plurality of balls 11 are movably connected to the top of the rotating ring 13. A lubrication mechanism that penetrates the rotating cover 5 and communicates with the outer periphery of the balls 11 is installed in the inner cavity of the top cover 1.

[0020] In this embodiment: First, when mixing cement mortar, the cement mortar raw material is poured into the mixing tank through the feed pipe on the outer periphery of the mixing tank. The top opening of the mixing tank is fixedly connected to the top cover 1 by bolts. Then, the rotary motor 2 is started. The rotary motor 2 drives the planetary mechanism to rotate. When the planetary mechanism is running, it drives the mixing mechanism to rotate. At the same time, during the mixing process, the lubricating oil located in the inner cavity of the top cover 1 comes into contact with the ball bearing 11 through the lubrication mechanism, which can maintain the rotational stability of the rotating cover 5 during the rotation process.

[0021] Please refer to this carefully. Figure 2 and Figure 3The stirring mechanism includes a central stirrer 3 fixedly installed at the bottom of the output shaft of the rotary motor 2. The central stirrer 3 extends downward. Multiple peripheral stirrers 4 extend from above the rotating cover 5 to below the rotating cover 5. The multiple peripheral stirrers 4 are equidistantly distributed circumferentially around the central stirrer 3. The peripheral stirrers 4 are rotatably connected to the rotating cover 5, and the central stirrer 3 is also rotatably connected to the rotating cover 5. A seal is installed at the rotatable connection between the central stirrer 3, the peripheral stirrers 4, and the rotating cover 5. The planetary mechanism includes a stationary gear 8 fixedly installed on the top of the inner wall of the top cover 1 and extending downward. Below the stationary gear 8, a planetary carrier 9 is fixedly installed on the outer periphery of the central stirrer 3. Multiple outer periphery ends of the planetary carrier 9 are rotatably connected to the outer periphery of the peripheral stirrers 4. A rotating gear 10 is fixedly installed on the top of the peripheral stirrer 4. Multiple rotating gears 10 mesh with the stationary gear 8.

[0022] In this embodiment: during stirring, the rotary motor 2 is started, and the rotary motor 2 drives the central stirrer 3 to rotate. The rotating central stirrer 3 drives the planetary carrier 9 to rotate synchronously. The rotating planetary carrier 9 drives multiple peripheral stirrers 4 and the rotating gear 10 at the top of the peripheral stirrers 4 to revolve. When the rotating gear 10 revolves, the rotating gear 10 that meshes with the stationary gear 8 rotates on its own axis while revolving, thus achieving the purpose of the peripheral stirrers 4 revolving and rotating on their own axis.

[0023] Please refer to this carefully. Figure 2 and Figure 4 The lubrication mechanism includes an intercepting net 6 fixedly installed on the top of the rotating cover 5 and extending upward. The top of the intercepting net 6 contacts the bottom of the top plate of the top cover 1. A sealing ring is installed between the top of the intercepting net 6 and the top plate of the top cover 1. The lubrication mechanism also includes a lubrication hole 12 recessed downward on the top of the rotating cover 5. The lubrication hole 12 is located on the outer periphery of the intercepting net 6. A groove is provided inside the rotating cover 5 for the rotating ring 13 and the ball bearing 11 to rotate. The bottom of the lubrication hole 12 is connected to the inner cavity of the groove. A sealing ring is installed at the contact position between the rotating cover 5 and the top cover 1. Oil holes are provided inside both the top plate of the top cover 1 and the rotating cover 5. The oil holes are located on the inner periphery of the intercepting net 6. A rubber sealing plug 7 is plugged into the inner wall of the oil holes.

[0024] In this embodiment: by opening the upper rubber sealing plug 7, lubricating oil can be poured into the top cover 1 through the upper oil hole. When it is necessary to drain the lubricating oil, the lubricating oil in the top cover 1 can be drained by opening the lower rubber sealing plug 7.

[0025] During the operation of the device, the lubricating oil located in the inner cavity of the top cover 1 comes into contact with the rotating ball 11 through the lubrication hole 12. The lubricating oil can then come into contact with the surface of the ball 11, ensuring the stability of the ball 11 during rotation and preventing deformation of the ball 11 due to rotational friction, thereby maintaining the rotational support stability of the ball 11.

[0026] During the above process, the intercepting net 6 can intercept the debris generated during the rotation of the planetary mechanism on the inner circumference of the intercepting net 6, preventing the debris from contacting the ball 11.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A planetary cement mortar mixer, comprising a hollow top cover (1), characterized in that, The bottom end of the top cover (1) is open. A rotary motor (2) is fixedly installed at the center of the top end of the top cover (1). A planetary gear mechanism connected to the output shaft of the rotary motor (2) is installed inside the top cover (1). A stirring mechanism is fixedly installed at the output end of the planetary gear mechanism. A rotating cover (5) is rotatably installed above the bottom opening of the top cover (1). A rotating ring (13) protruding upward is integrally formed on the top of the bottom plate of the top cover (1). Multiple balls (11) are movably connected to the top of the rotating ring (13). A lubrication mechanism that penetrates the rotating cover (5) and communicates with the outer periphery of the balls (11) is installed in the inner cavity of the top cover (1).

2. The planetary cement mortar mixer according to claim 1, characterized in that, The stirring mechanism includes a central stirrer (3) fixedly installed at the bottom of the output shaft of the rotary motor (2). The central stirrer (3) extends downward. The stirring mechanism has multiple peripheral stirrers (4) extending from above the rotating cover (5) to below the rotating cover (5). The multiple peripheral stirrers (4) are equidistantly distributed around the central stirrer (3). The peripheral stirrers (4) are rotatably connected to the rotating cover (5), and the central stirrer (3) is rotatably connected to the rotating cover (5). A seal is installed at the rotatable connection between the central stirrer (3), the peripheral stirrers (4), and the rotating cover (5).

3. A planetary cement mortar mixer according to claim 2, characterized in that, The planetary mechanism includes a stationary gear (8) that is fixedly mounted on the top of the inner wall of the top cover (1) and extends downward. Below the stationary gear (8) is a planetary carrier (9) that is fixedly mounted on the outer periphery of the central stirrer (3). Multiple outer periphery ends of the planetary carrier (9) are rotatably connected to the outer periphery of the outer peripheral stirrer (4). A rotating gear (10) is fixedly mounted on the top of the outer peripheral stirrer (4). Multiple rotating gears (10) mesh with the stationary gear (8).

4. A planetary cement mortar mixer according to claim 3, characterized in that, The lubrication mechanism includes an intercepting net (6) fixedly installed on the top of the rotating cover (5) and extending upward. The top of the intercepting net (6) is in contact with the bottom of the top plate of the top cover (1). A sealing ring is installed between the top of the intercepting net (6) and the bottom plate of the top plate of the top cover (1).

5. A planetary cement mortar mixer according to claim 4, characterized in that, The lubrication mechanism also includes a lubrication hole (12) that is recessed downward on the top of the rotating cover (5). The lubrication hole (12) is located on the outer periphery of the interception net (6). The rotating cover (5) has a groove for the rotating ring (13) and the ball (11) to rotate inside. The bottom end of the lubrication hole (12) is connected to the inner cavity of the groove.

6. A planetary cement mortar mixer according to claim 5, characterized in that, A sealing ring is installed at the contact position between the rotating cover (5) and the top cover (1). Oil holes are opened in the top plate of the top cover (1) and the interior of the rotating cover (5). The oil holes are located on the inner circumference of the interception net (6). A rubber sealing plug (7) is plugged in the inner wall of the oil holes.

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