Cement-based material stirring equipment

Abstract

The cement-based material stirring equipment comprises a stirring tank, an inner stirring paddle and an outer stirring paddle, the inner stirring paddle is nested in the middle of the outer stirring paddle, and the inner stirring paddle and the outer stirring paddle are both mounted in the middle of the stirring tank; a connecting pipe is arranged at the upper part of the stirring tank, a transmission rod is arranged at the upper part of the inner stirring paddle, a transmission pipe is arranged at the upper part of the outer stirring paddle, the transmission pipe penetrates through the connecting pipe, and the transmission rod penetrates through the transmission pipe; a first gear is arranged at the upper part of the transmission pipe, a first motor and a second motor are arranged at the upper part of the stirring tank, and the first motor is coaxially connected with the transmission rod. Rotation of the inner stirring paddle and the outer stirring paddle is independently controlled through the first motor and the second motor, the rotating speed and the rotating direction of the inner stirring paddle and the outer stirring paddle can be independently controlled in different stirring stages, the stirring speed is increased while the load of the motors is reduced, and a splash-proof structure is arranged between the connecting pipe and the transmission pipe. Pollution of the bearing caused by splashing of cement-based material slurry is avoided, and the service life of equipment is prolonged.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of grouting material configuration, and in particular to a cement-based material stirring device. BACKGROUND

[0002] The cement-based material is a kind of material with cement as a base material and various additives added, so that the cement-based material has good fluidity after being configured into a slurry, so that the slurry is suitable for grouting and plugging of cracks. The cement-based material is usually stored and transported in powder form, and needs to be stirred into paste after adding water before grouting, so as to perform the grouting and plugging operation. In order to improve the stirring speed, some cement-based material stirring devices are designed, for example, a cement-based material stirring device disclosed in Chinese Patent No. 201721906944.O, which comprises a rack, a barrel, a vibration motor, a spring buffer leg, a bidirectional stirring mechanism and a driving motor. The barrel is fixed on the rack through the spring buffer leg, and the vibration motor is installed at the center of the bottom of the barrel. When working, the slurry in the barrel is subjected to longitudinal excitation by the vibration motor. The bidirectional stirring mechanism comprises a planetary gear train mechanism, a rotating shaft, an outer stirring blade and an inner stirring blade. The planetary gear train mechanism is composed of an inner ring gear, a planetary gear, a planetary carrier and a sun gear. The planetary gear train mechanism is installed on the rotating shaft, the inner stirring blade is fixed on the rotating shaft, and the top end of the outer stirring blade is fixed on the inner ring gear of the planetary gear train mechanism through bolts. When the device rotates, the rotating directions of the outer stirring blade and the inner stirring blade are always opposite. At the beginning of stirring, the rotating resistance of the outer stirring blade and the inner stirring blade increases due to the mutual adhesion of the cement-based material, and the current is too large when the motor starts, which can easily cause the motor to burn out. Therefore, a cement-based material stirring device is needed, which drives the inner and outer stirring paddles by two motors respectively, independently controls the rotating speed and rotating direction of the inner and outer stirring paddles at different stirring stages, reduces the motor load, and improves the stirring speed. CONTENT OF THE UTILITY MODEL

[0003] In order to solve the above problems, the application provides a cement-based material stirring device, which drives the inner and outer stirring paddles by two motors respectively, independently controls the rotating speed and rotating direction of the inner and outer stirring paddles at different stirring stages, reduces the motor load, and improves the stirring speed.

[0004] The application is implemented by the following technical solutions:

[0005] The application provides a cement-based material stirring device, which comprises a stirring tank, an inner stirring paddle and an outer stirring paddle, the inner stirring paddle is nested in the middle part of the outer stirring paddle, and the inner stirring paddle and the outer stirring paddle are both installed in the middle part of the stirring tank; a connecting pipe is arranged on the upper part of the stirring tank, a transmission rod is arranged on the upper part of the inner stirring paddle, a transmission pipe is arranged on the upper part of the outer stirring paddle, the transmission pipe passes through the connecting pipe, and the transmission rod passes through the transmission pipe; a first gear is arranged on the upper part of the transmission pipe, a first motor and a second motor are arranged on the upper part of the stirring tank, the first motor is coaxially connected with the transmission rod, a second gear is arranged on the output shaft of the second motor, and the second gear is meshed with the first gear.

[0006] Further, a plurality of bearings are arranged between the transmission pipe and the transmission rod and between the connecting pipe and the transmission pipe.

[0007] Further, an anti-splashing groove is arranged on the inner wall of the lower part of the connecting pipe, an anti-splashing ring is arranged on the outer wall of the lower part of the transmission pipe, and the anti-splashing ring is located in the middle part of the anti-splashing groove.

[0008] Further, a mounting frame is arranged on the upper part of the stirring tank, the first motor is mounted on the mounting frame, and the upper part of the output shaft of the second motor passes through the mounting frame.

[0009] Further, the number of teeth of the first gear is 2 to 5 times the number of teeth of the second gear.

[0010] Further, a feeding port is arranged on the upper part of the stirring tank, a discharging pipe is arranged on the lower part of the stirring tank, and the lower part of the stirring tank is connected with the ground through supporting feet.

[0011] The application has the beneficial effects that the rotation of the inner stirring paddle and the outer stirring paddle is independently controlled through the first motor and the second motor, the rotating speed and direction of the inner and outer stirring paddles can be independently controlled in different stirring stages, the load of the motor is reduced, the stirring speed is improved, the anti-splashing structure is arranged between the connecting pipe and the transmission pipe, the pollution of the bearings caused by splashing of the cement-based material slurry is avoided, and the service life of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a structural schematic view of the application;

[0013] Fig. 2 It is a structural schematic view of the connecting pipe of the application;

[0014] In the drawing: 1-stirring tank, 2-inner stirring paddle, 3-outer stirring paddle, 4-transmission rod, 5-transmission pipe, 6-connecting pipe, 7-first gear, 8-first motor, 9-second motor, 10-second gear, 11-bearing, 12-anti-splashing groove, 13-anti-splashing ring, 14-mounting frame, 15-feeding port, 16-discharging pipe, 17-supporting feet. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0016] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0017] Furthermore, the terms "first," "second," and so forth, used in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features designated as "first" or "second" may explicitly or implicitly include at least one of the aforementioned features. Furthermore, the technical solutions of various embodiments may be combined, but only if they are achievable by persons of ordinary skill in the art. If a combination of technical solutions contradicts or is unachievable, such combination shall be deemed non-existent and outside the scope of protection claimed by this utility model.

[0018] like Figs. 1-2 As shown, an embodiment of the present invention provides a cement-based material mixing equipment, including: a mixing tank 1, an inner mixing paddle 2, and an outer mixing paddle 3, the inner mixing paddle 2 is nested in the middle of the outer mixing paddle 3, and the inner mixing paddle 2 and the outer mixing paddle 3 are both installed in the middle of the mixing tank 1; a connecting pipe 6 is provided on the upper part of the mixing tank 1, a transmission rod 4 is provided on the upper part of the inner mixing paddle 2, and a transmission pipe 5 is provided on the upper part of the outer mixing paddle 3, the transmission pipe 5 passes through the connecting pipe 6, and the transmission rod 4 passes through the transmission pipe 5; a first gear 7 is provided on the upper part of the transmission pipe 5, and a first motor 8 and a second motor 9 are provided on the upper part of the mixing tank 1, the first motor 8 is coaxially connected to the transmission rod 4, and a second gear 1O is provided on the output shaft of the second motor 9, and the second gear 1O is meshed with the first gear 7.

[0019] When the cement-based material slurry is configured, the weighed cement-based material powder and water are added into the stirring tank 1 from the feeding port 15. At this time, the cement-based material powder is mainly concentrated at the bottom of the stirring tank 1, and after adding water, the cement-based material powder is not dispersed in the water. At this time, the cement-based material powder will stick to the inner stirring paddle 2 and the outer stirring paddle 3. Since the outer stirring paddle 3 has a relatively large diameter, the required starting torque is also relatively large. Therefore, in the initial stage of stirring, only the inner stirring paddle 2 needs to be started at low speed. Since the inner stirring paddle 2 has a relatively small diameter, the required starting torque is relatively small. The rotation of the inner stirring paddle 2 driven by the first motor 8 gradually disperses the cement-based material powder at the bottom of the stirring tank 1 into the water. After the inner stirring paddle 2 rotates at low speed for 20-30 seconds, the second motor 9 is started at low speed, so that the outer stirring paddle 3 rotates in the same direction as the inner stirring paddle 2, so that the cement-based material powder is further dispersed in the water. After the outer stirring paddle 3 and the inner stirring paddle 2 rotate in the same direction for 60-100 seconds, the second motor 9 is reversed to rotate, so that the rotation directions of the outer stirring paddle 3 and the inner stirring paddle 2 are opposite. At the same time, the rotation speed of the first motor 8 and the second motor 9 is increased to further increase the stirring speed, so that the cement-based material powder and water are mixed and reacted to obtain the cement-based material slurry, which is discharged from the stirring tank 1 through the discharge pipe 16 and used for grouting and plugging cracks in buildings. The present application can independently control the rotation of the inner stirring paddle 2 and the outer stirring paddle 3 through the first motor 8 and the second motor 9, so that the inner stirring paddle 2 and the outer stirring paddle 3 can be independently controlled, and the above stirring control sequence is used for control, so that the problem of easy sticking of the cement-based material to the stirring paddle in the initial stage of stirring, which leads to excessive starting current of the motor and easy burning of the motor, is solved.

[0020] Preferably, as shown in Fig. 2 The transmission pipe 5 and the transmission rod 4 are provided with a plurality of bearings 11 between them, and the connecting pipe 6 and the transmission pipe 5 are provided with a plurality of bearings 11 between them, so that the transmission rod 4 and the transmission pipe 5 can rotate relative to each other, and the transmission rod 4 and the transmission pipe 5 can rotate coaxially to avoid collision between the inner stirring paddle 2 and the outer stirring paddle 3.

[0021] Specifically, as shown in Fig. 2 The inner wall of the lower part of the connecting pipe 6 is provided with a splash groove 12, and the outer wall of the lower part of the transmission pipe 5 is provided with a splash ring 13. The splash ring 13 is located in the middle of the splash groove 12, and the splash ring 13 and the splash groove 12 are staggered with each other. When the cement-based material slurry splashes, it can avoid entering the connecting pipe 6, preventing the cement-based material from polluting the bearings 11 and ensuring smooth rotation of the bearings 11.

[0022] Preferably, the upper part of the stirring tank 1 is provided with a mounting frame 14, the first motor 8 is mounted on the mounting frame 14, and the output shaft of the second motor 9 passes through the mounting frame 14. The mounting frame 14 is convenient to install and improves the connection strength of the first gear 7 and the second gear 10 to avoid gear skipping.

[0023] Preferably, the number of teeth of the first gear 7 is 2 to 5 times the number of teeth of the second gear 10, the rotating diameter of the outer stirring paddle 3 is relatively large, and the required rotating torque is also relatively large, so that the torque of the second motor 9 is amplified through the gear, so that the outer stirring paddle 3 can smoothly stir the cement-based material in the stirring tank 1.

[0024] In a preferred embodiment, the stirring tank 1 is provided with a feeding port 15 at the upper portion and a discharging pipe 16 at the lower portion, and the lower portion of the stirring tank 1 is connected to the ground through a supporting leg 17, facilitating quick feeding and discharging operations.

[0025] Of course, the present application can have other various embodiments, and based on the embodiments, other embodiments obtained by those of ordinary skill in the art without any creative labor shall fall within the scope of the present application.

Claims

1. A cement-based material mixing device, characterized in that: include: A stirring tank (1), an inner stirring paddle (2), and an outer stirring paddle (3), wherein the inner stirring paddle (2) is nested in the middle of the outer stirring paddle (3), and both the inner stirring paddle (2) and the outer stirring paddle (3) are installed in the middle of the stirring tank (1); a connecting pipe (6) is provided on the upper part of the stirring tank (1), a transmission rod (4) is provided on the upper part of the inner stirring paddle (2), and a transmission pipe (5) is provided on the upper part of the outer stirring paddle (3), wherein the transmission pipe (5) passes through the connecting pipe (6), and the transmission rod (4) passes through the transmission pipe (5); a first gear (7) is provided on the upper part of the transmission pipe (5), and a first motor (8) and a second motor (9) are provided on the upper part of the stirring tank (1), wherein the first motor (8) is coaxially connected to the transmission rod (4), and a second gear (10) is provided on the output shaft of the second motor (9), and the second gear (10) and the first gear (7) are meshed with each other.

2. A cement-based material mixing device according to claim 1, characterized in that: A plurality of bearings (11) are provided between the transmission tube (5) and the transmission rod (4), and between the connecting tube (6) and the transmission tube (5).

3. The cement-based material mixing equipment according to claim 1, characterized in that: The inner wall of the lower part of the connecting pipe (6) is provided with an anti-splash groove (12), and the outer wall of the lower part of the transmission pipe (5) is provided with an anti-splash ring (13), and the anti-splash ring (13) is located in the middle of the anti-splash groove (12).

4. The cement-based material mixing equipment according to claim 1, characterized in that: A mounting frame (14) is provided on the upper portion of the stirring tank (1), the first motor (8) is mounted on the mounting frame (14), and the upper portion of the output shaft of the second motor (9) passes through the mounting frame (14).

5. The cement-based material mixing equipment according to claim 1, characterized in that: The number of teeth of the first gear (7) is 2 to 5 times the number of teeth of the second gear (10).

6. The cement-based material mixing equipment according to claim 1, characterized in that: The upper portion of the mixing tank (1) is provided with a feed port (15), the lower portion of the mixing tank (1) is provided with a discharge pipe (16), and the lower portion of the mixing tank (1) is connected to the ground via a supporting foot (17).

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