Horizontal mixer for preparing steel fiber reinforced concrete

Abstract

The utility model discloses a horizontal mixer for preparing steel fiber reinforced concrete, which relates to the technical field of concrete preparation, and comprises a tank body, a hollow main shaft is rotatably connected in the tank body, a plurality of hollow mixing rods are fixedly connected on the main shaft, the main shaft is communicated with the mixing rods, and movable rods are slidably connected in the mixing rods. One end of the movable rod away from the main shaft extends out of the stirring rod and is fixedly connected with a scraping strip. The device has the beneficial effects that the hollow main shaft is communicated with the hollow stirring rod, water is introduced into the main shaft, water flows into the stirring rod, the movable rod extends out of the stirring rod through water pressure and centrifugal force, the movable rod opens the flow guide channel, water is sprayed out through the flow guide channel, and therefore the interior of the tank body is washed; and the scraping strips are in contact with the inner wall of the tank body and cooperate with water flow to scrape the inner wall of the tank body, the cleaning effect is improved, and use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete preparation, in particular to a horizontal mixer for preparing steel fiber concrete. Background Art

[0002] Steel fiber concrete is ordinary concrete with steel fibers added to it, which is used to enhance the strength of the concrete. The steel fibers used in the preparation process are usually in the form of long, wavy steel sheet structures. When using existing vertical mixers to mix this type of steel fibers with granular sand and gravel, uneven mixing will occur, which will affect the performance of the concrete subsequently prepared. Based on the above problems, at present, the existing process is improved by dry-mixing the sand and gravel with the steel fibers in advance, and then sending them to the mixing plant for subsequent mixing after they are fully premixed. Therefore, in the premixing process, it is necessary to design a corresponding mixer to achieve a sufficient premixing process of the two.

[0003] For example, the patent document with the announcement number CN217514229U discloses a premixed horizontal mixer for preparing steel fiber concrete, which adopts a horizontal structure specifically for dry premixing of steel fiber and sand and gravel, thereby ensuring the uniformity of the mixing of the two. However, the above mixer is not easy to clean after use, and the residual concrete in the mixer is easy to coagulate, thereby affecting subsequent use. Utility Model Content

[0004] The purpose of the utility model is to provide a horizontal mixer for preparing steel fiber concrete in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A horizontal mixer for preparing steel fiber concrete comprises a tank body, wherein a hollow main shaft is rotatably connected in the tank body, a plurality of hollow stirring rods are fixedly connected on the main shaft, the main shaft is communicated with the stirring rods, a movable rod is slidably connected in the stirring rod, an end of the movable rod away from the main shaft extends out of the stirring rod and is fixedly connected with a scraper strip, a limiting ring is fixedly connected inside the stirring rod, a spring is fixedly connected between the movable rod and the limiting ring, a guide channel is opened inside the side wall of the stirring rod, a water inlet of the guide channel is located on the inner wall of the stirring rod, a water outlet of the guide channel is located at an end of the stirring rod away from the main shaft, a baffle is fixedly connected to the movable rod, in a natural state, the movable rod blocks the water inlet of the guide channel, and the baffle blocks the water outlet of the guide channel, a support plate is fixedly connected to one side of the tank body, a rotary joint and a power mechanism are installed on the support plate, the rotary joint is rotatably installed on the water inlet end of the main shaft, and the power mechanism is used to drive the main shaft to rotate.

[0007] Preferably, the rotary joint includes a water inlet pipe, which is fixedly connected to the support plate. An annular groove is provided on the outer wall of the water inlet end of the main shaft. A slider is fixedly connected to the inner wall of one end of the water inlet pipe close to the main shaft. The slider slides in the annular groove, and a steel ball is movably embedded in the slider.

[0008] Preferably, the inner diameter of the water inlet pipe is smaller than the inner diameter of the main shaft.

[0009] Preferably, the power mechanism includes a motor base, which is fixedly connected to one side of the tank body, and a stirring motor is fixedly connected to the motor base. The output shaft of the stirring motor is fixedly connected to a driving gear, the driving gear is meshed with a driven gear, and the driven gear is fixedly connected to the main shaft.

[0010] Preferably, the inner diameter of the limiting ring gradually decreases along the water flow direction in the stirring rod.

[0011] Preferably, the water outlet of the diversion channel is in the shape of an opening with a gradually increasing diameter.

[0012] The beneficial effect is that the hollow main shaft is connected to the hollow stirring rod, water is introduced into the main shaft, the water flows into the stirring rod, and the movable rod is extended outward from the stirring rod by utilizing water pressure and centrifugal force, so that the movable rod opens the diversion channel, and water is sprayed out through the diversion channel, thereby flushing the inside of the tank body. At the same time, the movable rod drives the scraper to move, so that the scraper contacts the inner wall of the tank body, thereby cooperating with the water flow to scrape the inner wall of the tank body, thereby improving the cleaning effect and being more convenient to use.

[0013] The additional technical features and advantages of the present invention will be more clearly explained in the following description, or can be understood through the specific practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0015] Figure 1 It is a three-dimensional diagram of a horizontal mixer for preparing steel fiber concrete according to the utility model;

[0016] Figure 2 It is a front side sectional view of a horizontal mixer for preparing steel fiber concrete according to the utility model;

[0017] Figure 3 It is a three-dimensional diagram of the main shaft of a horizontal mixer for preparing steel fiber concrete described in the utility model;

[0018] Figure 4 It is a left side cross-sectional view of a stirring rod of a horizontal mixer for preparing steel fiber concrete described in the utility model;

[0019] Figure 5 The utility model is a horizontal mixer for preparing steel fiber concrete. Figure 2 A magnified view of the structure at center;

[0020] Figure 6 The utility model is a horizontal mixer for preparing steel fiber concrete. Figure 4 Enlarged view of the structure at point B in the middle.

[0021] The accompanying drawings are marked as follows: 1. tank body; 101. feed hopper; 102. discharge pipe; 2. main shaft; 201. stirring rod; 202. movable rod; 203. scraper; 204. limit ring; 205. spring; 206. guide channel; 207. baffle; 208. ring groove; 3. support plate; 401. water inlet pipe; 402. slider; 403. steel ball; 501. motor seat; 502. stirring motor; 503. driving gear; 504. driven gear. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] like Figure 1-Figure 6As shown, a horizontal mixer for preparing steel fiber concrete includes a tank body 1, a feed hopper 101 is welded on the top of the left end of the tank body 1, a discharge pipe 102 is welded on the bottom of the right end of the tank body 1, a valve is installed on the discharge pipe 102, and a valve is installed on the discharge pipe 102 to control the on and off of the discharge pipe 102. A hollow main shaft 2 is connected to the tank body 1 through a bearing, and a plurality of hollow stirring rods 201 are welded on the main shaft 2. The main shaft 2 is connected to the stirring rod 201, and a movable rod 202 is slidably connected in the stirring rod 201. The end of the movable rod 202 away from the main shaft 2 extends out of the stirring rod 201 and is connected to a scraper strip 203 by screws. A limit ring 204 is welded inside the stirring rod 201. A spring 205 is fixedly connected between the movable rod 202 and the limit ring 204. A guide channel 206 is opened inside the side wall of the stirring rod 201. The water inlet of the guide channel 206 is located on the inner wall of the stirring rod 201, and the water outlet of the guide channel 206 is located at the end of the stirring rod 201 away from the main shaft 2. , a baffle 207 is fixedly connected to the movable rod 202. In a natural state, the movable rod 202 blocks the water inlet of the guide channel 206, and the baffle 207 blocks the water outlet of the guide channel 206. When the concrete is mixed and discharged through the discharge pipe 102, the speed of the main shaft 2 is increased, and water is passed into the main shaft 2, and the water enters the stirring rod 201. Under the action of water pressure and centrifugal force, the movable rod 202 extends to the outside of the stirring rod 201, so that the scraper 203 contacts the inner wall of the tank body 1. At the same time, the water inlet and the water outlet of the guide channel 206 are opened at the same time, and water is sprayed out through the guide channel 206, thereby flushing the inner wall of the tank body 1, and scraping it with the cooperation of the scraper 203, so as to ensure the cleaning effect of the inside of the tank body 1. A support plate 3 is connected to one side of the tank body 1 by screws, and a rotary joint and a power mechanism are installed on the support plate 3. The rotary joint is rotatably installed at the water inlet end of the main shaft 2, and the power mechanism is used to drive the main shaft 2 to rotate.

[0026] The rotary joint includes a water inlet pipe 401, which is fixedly connected to the support plate 3. An annular groove 208 is provided on the outer wall of the water inlet end of the main shaft 2. A slider 402 is fixedly connected to the inner wall of the end of the water inlet pipe 401 close to the main shaft 2. The slider 402 slides in the annular groove 208. The water inlet end of the water inlet pipe 401 is connected to an external pressurized water supply device, so that the main shaft 2 can rotate relative to the water inlet pipe 401, thereby ensuring that water can continue to flow during the rotation of the main shaft 2. A steel ball 403 is movably embedded in the slider 402. The steel ball 403 is used to reduce the friction between the slider 402 and the main shaft 2, reduce wear, and improve the stability of the rotation of the main shaft 2.

[0027] The inner diameter of the water inlet pipe 401 is smaller than the inner diameter of the main shaft 2 . Such an arrangement can improve the sealing performance between the water inlet pipe 401 and the main shaft 2 .

[0028] The power mechanism includes a motor base 501, which is connected to one side of the tank body 1 by screws. A stirring motor 502 is connected to the motor base 501 by bolts. The output shaft of the stirring motor 502 is fixedly connected to a driving gear 503, and the driving gear 503 is meshed with a driven gear 504. The driven gear 504 is fixedly connected to the main shaft 2. The stirring motor 502 drives the driving gear 503 to rotate, and the driving gear 503 drives the driven gear 504 to rotate, thereby rotating the main shaft 2.

[0029] The inner diameter of the limiting ring 204 gradually decreases along the direction of the water flow in the stirring rod 201. With this arrangement, when the water flows through the limiting ring 204, the water pressure in the stirring rod 201 can be increased, thereby increasing the impact force of the water spray and improving the cleaning effect.

[0030] The water outlet of the diversion channel 206 is in the shape of an opening with a gradually increasing diameter. This arrangement enables the water flow to be in a cone shape after being sprayed out, thereby expanding the flushing range.

[0031] Working principle: When in use, concrete and steel fiber are added into the tank body 1 through the feed hopper 101, and the stirring motor 502 drives the driving gear 503 to rotate, and the driving gear 503 drives the main shaft 2 to rotate through the driven gear 504, and the main shaft 2 drives the stirring rod 201 to rotate, so as to stir the materials. After the stirring is completed, the valve on the discharge pipe 102 is opened to discharge the materials. When the inside of the tank body 1 needs to be cleaned, water is introduced into the water inlet pipe 401 through the external pressurized water supply device, and the water enters the main shaft 2 and the stirring rod 201, and At this time, the speed of the stirring motor 502 is increased to increase the speed of the main shaft 2. Under the action of water pressure and centrifugal force, the movable rod 202 extends out of the stirring rod 201, the spring 205 is stretched, and the baffle 207 also leaves the stirring rod 201, so that the scraper 203 contacts the inner wall of the tank body 1. At this time, the water inlet and outlet of the diversion channel 206 are opened, so that the water of the stirring rod 201 is sprayed out through the diversion channel 206 to rinse the inner wall of the tank body 1, and with the scraping effect of the scraper 203, the residual concrete on the inner wall of the tank body 1 can be cleaned.

[0032] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A horizontal mixer for preparing steel fiber concrete, comprising a tank body (1), characterized in that: A hollow main shaft (2) is rotatably connected inside the tank body (1), a plurality of hollow stirring rods (201) are fixedly connected to the main shaft (2), the main shaft (2) is communicated with the stirring rods (201), a movable rod (202) is slidably connected inside the stirring rod (201), one end of the movable rod (202) away from the main shaft (2) extends out of the stirring rod (201) and is fixedly connected to a scraper strip (203), a limiting ring (204) is fixedly connected inside the stirring rod (201), a spring (205) is fixedly connected between the movable rod (202) and the limiting ring (204), a guide channel (206) is provided inside the side wall of the stirring rod (201), and the guide channel (206) is provided inside the side wall of the stirring rod (201). The water inlet of the flow guide channel (206) is located on the inner wall of the stirring rod (201), the water outlet of the flow guide channel (206) is located at the end of the stirring rod (201) away from the main shaft (2), and a baffle (207) is fixedly connected to the movable rod (202). In a natural state, the movable rod (202) blocks the water inlet of the flow guide channel (206), and the baffle (207) blocks the water outlet of the flow guide channel (206). A support plate (3) is fixedly connected to one side of the tank body (1), and a rotating joint and a power mechanism are installed on the support plate (3). The rotating joint is rotatably installed on the water inlet end of the main shaft (2), and the power mechanism is used to drive the main shaft (2) to rotate.

2. A horizontal mixer for preparing steel fiber concrete according to claim 1, characterized in that: The rotary joint comprises a water inlet pipe (401), the water inlet pipe (401) is fixedly connected to the support plate (3), an annular groove (208) is provided on the outer wall of the water inlet end of the main shaft (2), a slider (402) is fixedly connected to the inner wall of one end of the water inlet pipe (401) close to the main shaft (2), the slider (402) is slidably fitted in the annular groove (208), and a steel ball (403) is movably embedded in the slider (402).

3. A horizontal mixer for preparing steel fiber concrete according to claim 2, characterized in that: The inner diameter of the water inlet pipe (401) is smaller than the inner diameter of the main shaft (2).

4. A horizontal mixer for preparing steel fiber concrete according to claim 1, characterized in that: The power mechanism comprises a motor base (501), the motor base (501) is fixedly connected to one side of the tank body (1), a stirring motor (502) is fixedly connected to the motor base (501), an output shaft of the stirring motor (502) is fixedly connected to a driving gear (503), the driving gear (503) is meshed with a driven gear (504), and the driven gear (504) is fixedly connected to the main shaft (2).

5. The horizontal mixer for preparing steel fiber concrete according to claim 1, characterized in that: The inner diameter of the limiting ring (204) gradually decreases along the direction of water flow in the stirring rod (201).

6. A horizontal mixer for preparing steel fiber concrete according to claim 1, characterized in that: The water outlet of the diversion channel (206) is in the shape of an opening with a gradually increasing diameter.

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