A vertical axis planetary hydraulic vibration concrete mixer

Abstract

The present invention relates to the technical field of mixing equipment, and in particular to a vertical-shaft planetary hydraulic vibration concrete mixer, comprising a protective cover, a driving motor is arranged above the protective cover, a first reducer is arranged on the upper part of the protective cover, the first reducer comprises a shell, a transmission shaft is arranged in the middle part of the shell, a revolving gear and a self-rotating gear are arranged on the transmission shaft, a slewing bearing linked with the revolving gear is arranged above the shell, the setting of the slewing bearing can ensure that the shell performs circular motion with the rotation of the transmission shaft, and then drives the vibration stirring component to revolve around the transmission shaft, and a vibration stirring component linked with the self-rotating gear is arranged below the shell, and the setting of the revolving gear and the self-rotating gear can ensure that the stirring arm can complete both the revolution and the rotation, thereby enhancing the material mixing effect, and the stirring arm can be vibrated while revolving and rotating, thereby further enhancing the material mixing effect, and less time is consumed when reaching the same mixing standard.

Description

Technical Field

[0001] The invention relates to the technical field of mixing equipment, and in particular to a vertical-shaft planetary hydraulic vibration mixer for concrete mixing. Background Art

[0002] As the speed of my country's economic construction is getting faster and faster, the construction speed in various places, especially in cities, is also getting faster and faster. A large number of concrete buildings are springing up like mushrooms after a rain. In this process, a large amount of concrete is needed to participate in the construction.

[0003] For a long time, most concrete preparations around the world have used static mixing methods. The biggest problem with this method is that the solid, liquid, and gas phases in the concrete cannot be completely evenly distributed, which not only wastes cement and other materials, but also reduces the service performance of the concrete structure. Taking the cement waste in the production of cement concrete as an example, my country's cement production in 2016 was 2.4 billion tons. If 10% of the cement is wasted due to uneven mixing, 240 million tons of cement will be wasted. Cement waste not only causes economic losses, but the pollution problems generated during the cement production process are equally alarming. Therefore, it is of great practical significance to carry out research on the theory and equipment of concrete vibration mixing.

[0004] Vibration mixing is internationally recognized as one of the most economical methods to improve the quality and efficiency of concrete mixing. The reason is that under the action of vibration, each particle inside cement concrete will vibrate continuously around a certain unstable equilibrium middle position, and cause the adjacent particles to vibrate and displace, the relative motion frequency between material particles increases, the flow form and energy distribution of concrete change, and the microstructure of concrete is improved; at the same time, under the action of vibration, cement particles are in a vibrating state, which destroys the agglomeration of cement particles, provides the possibility for the full hydration of cement, helps the wrapping between cement paste and aggregate, improves the micro-uniformity of concrete and its mechanical properties such as strength, thereby improving the comprehensive performance of concrete service.

[0005] However, most existing concrete mixers use a mixing shell to drive materials to complete the material mixing operation in the mixing shell. This mixing method has low mixing efficiency and cannot achieve relative displacement of adjacent particles through high-frequency vibration, resulting in low mixing efficiency and poor material mixing effect, thereby resulting in poor concrete quality. Summary of the invention

[0006] The purpose of the present invention is to overcome the disadvantage of poor material mixing effect of the horizontal mixer in the prior art and to provide a vertical axis planetary hydraulic vibration concrete mixer which has better material mixing effect and can perform rotation, revolution and vibration.

[0007] The present invention is realized by the following technical scheme: a vertical axis planetary hydraulic vibration concrete mixer, comprising a protective cover, a driving motor is arranged above the protective cover, a first reducer is arranged on the upper part of the protective cover, the first reducer comprises a housing, a transmission shaft is arranged in the middle part of the housing, a revolving gear and a self-rotating gear are arranged on the transmission shaft, a slewing bearing linked with the revolving gear is arranged above the housing, and a vibration stirring assembly linked with the self-rotating gear is arranged below the housing;

[0008] The vibration stirring assembly includes a hollow shaft connected to the shell, a driven gear 1 meshing with the self-rotating gear is arranged on the upper part of the hollow shaft, a stirring arm is slidably arranged on the outer side wall of the lower part of the hollow shaft, a booster device for pressing down the stirring arm is arranged above the hollow shaft, and a rebound device for assisting the stirring arm in resetting is arranged at the lower end.

[0009] Furthermore, the boosting device includes a bevel gear 1 connected to the hollow shaft key, a bevel gear 2 arranged on the inner wall of the shell, and a piston rod located inside the hollow shaft. The bevel gear 1 and the bevel gear 2 are meshingly connected, and a rotating shaft 1 is arranged on the axial position of the bevel gear 2. The end of the rotating shaft 1 is provided with a cam used in conjunction with the upper end of the piston rod.

[0010] Furthermore, the rebound device includes a sealing sleeve arranged at the lower end of the hollow shaft, the sealing sleeve is fixedly connected to the lower end surface of the stirring arm, a return spring arranged inside the sealing sleeve and sleeved on the outside of the hollow shaft, the upper end of the return spring abuts against the stirring arm, and a limit plate fixedly connected to the hollow shaft is arranged at the lower end.

[0011] Furthermore, a bearing seat for mounting the rotating shaft 1 is disposed on the upper side wall of the shell, and a sealing end cover that fits the shell is disposed on the outer end surface of the bearing seat.

[0012] Furthermore, the stirring arm includes a sleeve slidably arranged on the outer wall of the hollow shaft, and stirring blades are arranged on the outer wall of the sleeve. The stirring blades are two layers, and each layer includes a plurality of stirring blades distributed along the circumferential direction of the hollow shaft.

[0013] Furthermore, a second reducer connected to the stirring arm is arranged on the outer side wall of the hollow shaft, and a buffer gasket is arranged at the connection between the second reducer and the stirring arm.

[0014] Furthermore, the slewing bearing comprises an inner ring fixedly connected to the protective cover and an outer ring fixedly connected to the upper end of the shell, and meshing teeth are arranged on the inner side wall of the inner ring.

[0015] Furthermore, a linkage device is arranged between the revolving gear and the slewing bearing, and the linkage device includes a rotating shaft 2 vertically arranged on the shell, a driven gear 2 meshingly connected to the inner ring is arranged at the upper end of the rotating shaft 2, and a driven gear 3 connected to the revolving gear is arranged at the lower end.

[0016] The beneficial effects of the present invention are as follows: 1. The vertical axis planetary hydraulic vibration concrete mixer comprises a protective cover, a driving motor is arranged above the protective cover, a first reducer is arranged on the upper part of the protective cover, the first reducer is connected to the driving motor through a plum blossom coupling, the first reducer comprises a shell, a transmission shaft is arranged in the middle part of the shell, a revolving gear and a rotating gear are arranged on the transmission shaft, the revolving gear and the rotating gear are key-connected with the transmission shaft, a slewing bearing linked with the revolving gear is arranged above the shell, the setting of the slewing bearing can ensure that the shell performs circular motion with the rotation of the transmission shaft, thereby driving the vibration stirring assembly to revolve around the transmission shaft, a vibration stirring assembly linked with the rotating gear is arranged below the shell, the setting of the revolving gear and the rotating gear can ensure that the stirring arm can complete both the revolution and the rotation, and the rotation and the revolution are performed synchronously, thereby enhancing the material mixing effect, and the stirring arm can be vibrated while revolving and rotating, thereby further enhancing the material mixing effect, and less time is consumed when reaching the same mixing standard.

[0017] 2. The first reducer is located at the upper part of the entire mixer and has no direct contact with the material, which is convenient for sealing and will not cause leakage of slurry during discharge.

[0018] 3. The shaft end seal of the horizontal vibrating concrete mixer adopts oil seal, which needs to be lubricated every 40 minutes. Calculated by adding 1 kg of lubricating oil each time and working 8 hours a day, the annual lubricating oil consumption is about 4320 kg. Compared with the horizontal concrete mixer, the transmission device and sealing device of the vertical axis planetary pneumatic vibrating concrete mixer are all on the upper part of the mixer. It only needs to replace the lubricating oil every six months. The annual lubricating oil consumption is about 600 kg. A single machine can save 3720 kg of lubricating oil each year. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0021] Figure 3 for Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0022] Figure 4 It is a schematic structural diagram of the stirring arm in the present invention.

[0023] Among them: 1-protective cover; 2-driving motor; 3-housing; 4-transmission shaft; 5-revolution gear; 6-rotation gear; 7-slewing bearing; 8-hollow shaft; 9-driven gear one; 10-stirring arm; 11-bevel gear one; 12-bevel gear two; 13-piston rod; 14-rotating shaft one; 15-cam; 16-sealing sleeve; 17-reset spring; 18-limiting plate; 19-bearing seat; 20-sealing end cover; 21-sleeve; 22-stirring blade; 23-second reducer; 24-buffer gasket; 25-inner ring; 26-outer ring; 27-rotating shaft two; 28-driven gear two; 29-driven gear three. DETAILED DESCRIPTION

[0024] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of the embodiments. Based on the embodiments of the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0026] Example 1

[0027] like Figure 1-4 As shown, a vertical axis planetary hydraulic vibration concrete mixer comprises a protective cover 1, a driving motor 2 is arranged above the protective cover 1, a first reducer is arranged on the upper part of the protective cover 1, the first reducer is connected to the driving motor 2 through a plum blossom coupling, the first reducer comprises a housing 3, a transmission shaft 4 is arranged in the middle of the housing 3, a revolving gear 5 and a self-rotating gear 6 are arranged on the transmission shaft 4, the revolving gear 5 and the self-rotating gear 6 are key-connected with the transmission shaft 4, a slewing bearing 7 linked to the revolving gear 5 is arranged above the housing 3, the setting of the slewing bearing 7 can ensure that the housing 3 performs circular motion with the rotation of the transmission shaft 4, and then drives the vibration stirring assembly to revolve around the transmission shaft 4, and a vibration stirring assembly linked to the self-rotating gear 6 is arranged below the housing 3;

[0028] The vibration stirring assembly includes a hollow shaft 8 connected to the shell 3, and a driven gear 9 meshing with the self-rotating gear 6 is arranged on the upper part of the hollow shaft 8. A stirring arm 10 is slidably arranged on the outer side wall of the lower part of the hollow shaft 8. After the driven gear 9 is key-connected to the hollow shaft 8, it is linked with the self-rotating gear 6 to realize the self-rotation of the hollow shaft 8, thereby driving the stirring arm 10 to rotate for stirring. A booster device for pressing down the stirring arm 10 is arranged above the hollow shaft 8, and a rebound device for assisting the stirring arm 10 in resetting is arranged at the lower end. The stirring arm 10 is driven longitudinally through the cooperation of the booster device and the rebound device, so that the stirring arm 10 can perform a small longitudinal movement, thereby finally realizing vibration stirring.

[0029] The booster device includes a bevel gear 11 keyed to the hollow shaft 8, a bevel gear 2 12 arranged on the inner wall of the housing 3, and a piston rod 13 located inside the hollow shaft 8. The bevel gear 11 and the bevel gear 2 12 are meshed and connected. A rotating shaft 14 is arranged on the axial position of the bevel gear 2 12. A cam 15 used in conjunction with the upper end of the piston rod 13 is arranged at the end of the rotating shaft 14. The cam 15 is hinged to the upper end of the piston rod 13, and the vertical rotational force is converted into a lateral rotational force through the bevel gear 11 and the bevel gear 2 12. The cam 15 is driven to rotate through the rotating shaft 14. The rotation of the cam 15 will drive the piston rod 13 to make a longitudinal linear motion in the internal chamber of the hollow shaft 8, increase the pressure on the bottom of the sealing sleeve 16 when pressing down, and then drive the stirring arm 10 to move downward.

[0030] The rebound device includes a sealing sleeve 16 arranged at the lower end of the hollow shaft 8, the upper end of the sealing sleeve 16 is fixedly connected to the lower end surface of the stirring arm 10, and a return spring 17 sleeved on the outside of the hollow shaft 8 is arranged in the sealing sleeve 16. The upper end of the return spring 17 abuts against the stirring arm 10, and the lower end is provided with a limit plate 18 fixedly connected to the hollow shaft 8. A boss is provided on the inner side of the lower end surface of the stirring arm 10 and is clamped with the upper end of the return spring 17. The return spring 17 is compressed when the stirring arm 10 slides downward, and the return spring 17 is reset when the downward pressure of the piston rod 13 disappears and moves upward. The reset operation of the stirring arm 10 is realized by the cooperation of the limit plate 18 and the boss, thereby realizing the complete vibration operation.

[0031] A bearing seat 19 for mounting the rotating shaft 14 is arranged on the upper side wall of the shell 3. The bearing seat 19 realizes the rotational connection between the rotating shaft 14 and the shell 3, and also plays a positioning role to prevent the rotating shaft 14 from deflecting during operation. The outer end face of the bearing seat 19 is provided with a sealing end cover 20 that fits with the shell 3.

[0032] The stirring arm 10 includes a sleeve 21 slidably arranged on the outer wall of the hollow shaft 8, and a stirring blade 22 is arranged on the outer wall of the sleeve 21. The stirring blade 22 is two-layered, and each layer includes a plurality of stirring blades 22 distributed along the circumferential direction of the hollow shaft 8. The double-layer stirring blades 22 can increase the contact area with the material and enhance the stirring effect. The stirring blades 22 and the sleeve 21 are integrally formed.

[0033] A second reducer 23 connected to the stirring arm 10 is arranged on the outer wall of the hollow shaft 8. A buffer gasket 24 is arranged at the connection between the second reducer 23 and the stirring arm 10. The buffer gasket 24 is made of rubber material and can play a buffering role when the stirring arm 10 vibrates, thereby preventing the vibration of the stirring arm 10 from affecting the second reducer 23.

[0034] The slewing bearing 7 includes an inner ring 25 fixedly connected to the protective cover 1 and an outer ring 26 fixedly connected to the upper end of the housing 3. The inner side wall of the inner ring 25 is provided with meshing teeth. The self-rotation of the reducer is completed by the cooperation between the slewing bearing 7 and the revolving gear 5.

[0035] A linkage device is arranged between the revolving gear 5 and the slewing bearing 7, and the linkage device includes a rotating shaft 27 vertically arranged on the shell 3, and the upper end of the rotating shaft 27 is provided with a driven gear 28 meshing with the inner ring 25, and the lower end is provided with a driven gear 3 29 connected to the revolving gear 5. The transmission is carried out through the linkage device to complete the self-rotation operation of the first reducer, thereby driving the stirring arm 10 to revolve around the transmission shaft 4.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vertical axis planetary hydraulic vibration concrete mixer, comprising a protective cover, a driving motor is arranged above the protective cover, and a first reducer is arranged on the upper part of the protective cover, characterized in that: The first reducer comprises a housing, a transmission shaft is arranged in the middle of the housing, a revolving gear and a rotating gear are arranged on the transmission shaft, a slewing bearing linked to the revolving gear is arranged above the housing, and a vibration stirring assembly linked to the rotating gear is arranged below the housing; The vibration stirring assembly comprises a hollow shaft connected to the shell, a driven gear 1 meshing with the self-rotating gear is arranged on the upper part of the hollow shaft, a stirring arm is slidably arranged on the outer side wall of the lower part of the hollow shaft, a booster device for pressing down the stirring arm is arranged on the upper part of the hollow shaft, and a rebound device for assisting the stirring arm to reset is arranged at the lower end; The boosting device includes a bevel gear 1 connected to the hollow shaft key, a bevel gear 2 arranged on the inner wall of the shell, and a piston rod located inside the hollow shaft. The bevel gear 1 and the bevel gear 2 are meshed and connected. A rotating shaft 1 is arranged on the axial position of the bevel gear 2, and a cam is arranged at the end of the rotating shaft 1 for use with the upper end of the piston rod.

2. A vertical axis planetary hydraulic vibration concrete mixer according to claim 1, characterized in that: The rebound device includes a sealing sleeve arranged at the lower end of the hollow shaft, the sealing sleeve is fixedly connected to the lower end surface of the stirring arm, a return spring arranged on the outside of the hollow shaft is arranged inside the sealing sleeve, the upper end of the return spring abuts against the stirring arm, and the lower end is provided with a limit plate fixedly connected to the hollow shaft.

3. The vertical axis planetary hydraulic vibration concrete mixer according to claim 1, characterized in that: A bearing seat for mounting a rotating shaft 1 is disposed on the upper side wall of the shell, and a sealing end cover that fits the shell is disposed on the outer end surface of the bearing seat.

4. The vertical axis planetary hydraulic vibration concrete mixer according to claim 1, characterized in that: The stirring arm comprises a sleeve slidably arranged on the outer wall of the hollow shaft, and stirring blades are arranged on the outer wall of the sleeve. The stirring blades are in two layers, and each layer comprises a plurality of stirring blades distributed along the circumferential direction of the hollow shaft.

5. The vertical axis planetary hydraulic vibration concrete mixer according to claim 1, characterized in that: A second reducer connected to the stirring arm is arranged on the outer side wall of the hollow shaft, and a buffer gasket is arranged at the connection between the second reducer and the stirring arm.

6. The vertical axis planetary hydraulic vibration concrete mixer according to claim 1, characterized in that: The slewing bearing comprises an inner ring fixedly connected to the protective cover and an outer ring fixedly connected to the upper end of the shell, and meshing teeth are arranged on the inner side wall of the inner ring.

7. A vertical axis planetary hydraulic vibration concrete mixer according to claim 6, characterized in that: A linkage device is arranged between the revolving gear and the slewing bearing, and the linkage device includes a rotating shaft 2 vertically arranged on the shell, a driven gear 2 meshingly connected to the inner ring is arranged at the upper end of the rotating shaft 2, and a driven gear 3 connected to the revolving gear is arranged at the lower end.

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