Raw material mixing device for preparing self-compacting high-strength concrete

Abstract

The utility model discloses a raw material mixing device for preparing self-compacting high-strength concrete in the field of concrete preparation, which structurally comprises a feed hopper, a fixed side plate, a primary mixing mechanism and a secondary mixing mechanism, the primary mixing mechanism comprises a first driving motor, an adjustable eccentric structure and a first mixing roller; the first driving motor is installed on one side of the upper end of the fixed side plate, the adjustable eccentric structures are installed at the two ends of the first stirring roller, and the first stirring roller is installed on an output shaft of the first driving motor through the adjustable eccentric structures; the first-stage material stirring mechanism and the second-stage material stirring mechanism are matched to fully scatter and stir concrete raw materials entering the feeding hopper, manual interference is not needed, under the condition that the concrete raw materials are complex, eccentric adjustment work can be conducted on a first material stirring roller in the first-stage material stirring mechanism, and the work efficiency is improved. Therefore, the first-stage mixing mechanism obtains larger mixing force, and the mixing efficiency of concrete raw materials is improved.

Description

Technical Field

[0001] The utility model relates to the field of concrete preparation, in particular to a raw material mixing device for preparing self-compacting high-strength concrete. Background Art

[0002] High-strength concrete refers to concrete with high strength and high durability. Due to its excellent mechanical properties and durability, high-strength concrete has been increasingly used in the field of civil engineering in recent years. With the advancement of technology and the growth of market demand, its development prospects are very broad. With the research and development of new materials and new processes, such as high-performance cement, high-efficiency water reducers, new mineral admixtures and fiber reinforcement technologies, the strength level of high-strength concrete will continue to increase while maintaining or even optimizing other performance indicators.

[0003] In view of the current concrete preparation field, corresponding solutions have been formulated for the following existing problems:

[0004] At present, in the raw material preparation stage of concrete, the concrete raw materials are usually poured directly into the mixer. When the demand for concrete is large, due to the limited size of the hopper inlet, excess concrete raw materials will accumulate at the inlet. At this time, it is necessary to manually poke the materials with a stick to destroy the piled up concrete raw materials and make them fall smoothly into the inlet. There are certain safety hazards in the process of manual poking, and the efficiency is low. The traditional direct pouring method cannot solve the problem of lumps inside the concrete raw materials, which is easy to cause insufficient mixing in the subsequent mixing process, resulting in unsatisfactory mixing effect. Utility Model Content

[0005] The main purpose of the utility model is to overcome the deficiencies of the prior art and provide a raw material mixing device for preparing self-compacting high-strength concrete.

[0006] The utility model adopts the following technical scheme to achieve: a raw material mixing device for preparing self-compacting high-strength concrete, the structure of which includes a feed hopper, a fixed side plate, a primary mixing mechanism, and a secondary mixing mechanism, wherein a plurality of the primary mixing mechanisms are installed on both sides of the upper end of the fixed side plate, the secondary mixing mechanism is installed at the lower end of the middle part of the fixed side plate, and the fixed side plate is installed on one side of the feed hopper;

[0007] One end of the plurality of primary material mixing mechanisms and secondary material mixing mechanisms are mounted on the feed hopper via an articulated bearing seat;

[0008] The first-level mixing mechanism includes a first drive motor, an adjustable eccentric structure, and a first mixing roller. The first drive motor is installed on one side of the upper end of the fixed side plate, and several adjustable eccentric structures are installed at both ends of the first mixing roller. The first mixing roller is installed on the output shaft of the first drive motor through the adjustable eccentric structure.

[0009] Furthermore, a mounting platform is provided at one end of the adjustable eccentric structure, and the adjustable eccentric structure is installed on the output shaft of the first drive motor through a fixing bolt. An offset sliding groove is provided in the middle of the mounting platform, and an offset block is installed in the offset sliding groove. Adjustment threaded holes are provided in the middle of the upper and lower ends of the mounting platform, a first adjustment bolt is installed in the adjustment threaded hole provided at the upper end of the mounting platform, and a second adjustment bolt is installed in the adjustment threaded hole provided at the lower end of the mounting platform, and the offset block cooperates with the first adjustment bolt and the second adjustment bolt to form a clamping support state.

[0010] Furthermore, the first mixing roller includes a fixed plate, a first mixing rod, and mounting bolts, wherein several fixed plates are installed at both ends of the first mixing rod, and several first mixing rods distributed in a circular array are installed on one side of the fixed plate, and the fixed plate is installed on the adjustable eccentric structure by mounting bolts.

[0011] Furthermore, a fixed threaded hole is provided in the middle of the offset block, and the first mixing roller is installed by cooperating with the fixed threaded hole through the installation bolts. Limiting grooves are provided in the middle of the upper and lower ends of the offset block, and the offset block can slide vertically in the offset sliding groove.

[0012] Furthermore, the horizontal center line of the offset sliding groove is higher than the horizontal center line of the mounting platform.

[0013] Furthermore, the secondary mixing mechanism includes a second drive motor and a second mixing roller. The second drive motor is installed at the lower end of the middle part of the fixed side plate, and the second mixing roller is installed on the output shaft of the second drive motor.

[0014] Furthermore, the second mixing roller includes a support frame and a second mixing rod, and several support frames are installed at both ends of the second mixing rod. Several second mixing rods distributed in a circular array are installed on one side of the support frame, and the other end of the second mixing roller is installed together with a hinged bearing seat provided on the outside of the feed hopper.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the first-level mixing mechanism and the second-level mixing mechanism of the utility model cooperate to fully break up and mix the concrete raw materials entering the feed hopper, control the mixing state of the concrete raw materials, and can freely adjust the mixing efficiency of the first-level mixing mechanism and the second-level mixing mechanism according to the mixing requirements without manual intervention. In the case of more complex concrete raw materials, the first mixing roller in the first-level mixing structure can be eccentrically adjusted to enable the first-level mixing mechanism to obtain greater mixing force and improve the mixing efficiency of the concrete raw materials. The first adjusting bolt and the second adjusting bolt cooperate with the adjustable eccentric structure to quickly carry out adjustment work to meet different concrete raw material mixing requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the feed hopper of the utility model.

[0018] Figure 3 It is a schematic diagram of the internal structure of the feed hopper of the utility model.

[0019] Figure 4 It is a side view of the first-level mixing mechanism of the utility model.

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the adjustable eccentric structure of the utility model.

[0021] Figure 6 It is a schematic diagram of the internal structure of the adjustable eccentric structure of the utility model.

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the offset block of the utility model.

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the first mixing roller of the utility model.

[0024] Fig. 9 It is a schematic diagram of the three-dimensional structure of the second mixing roller of the utility model.

[0025] In the figure: feed hopper 1, fixed side plate 2, primary mixing mechanism 3, secondary mixing mechanism 4, first drive motor 31, adjustable eccentric structure 32, first mixing roller 33, mounting table 321, offset sliding groove 322, offset block 323, adjusting threaded hole 324, first adjusting bolt 325, second adjusting bolt 326, fixed plate 331, first mixing rod 332, mounting bolt 333, fixed threaded hole 3231, limiting groove 3232, second drive motor 41, second mixing roller 42, support frame 421, second mixing rod 422. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-9The utility model provides a technical solution for a raw material mixing device for preparing self-compacting high-strength concrete: a raw material mixing device for preparing self-compacting high-strength concrete, the structure of which includes a feed hopper 1, a fixed side plate 2, a primary mixing mechanism 3, and a secondary mixing mechanism 4, a plurality of the primary mixing mechanisms 3 are installed on both sides of the upper end of the fixed side plate 2, the secondary mixing mechanism 4 is installed at the lower end of the middle part of the fixed side plate 2, the fixed side plate 2 is installed on one side of the feed hopper 1, and the feed hopper 1 cooperates with the fixed side plate 2 to form a complete bucket-shaped structure;

[0028] One end of the first-stage material mixing mechanism 3 and the second-stage material mixing mechanism 4 are both mounted on the feed hopper 1 by an articulated bearing seat;

[0029] The first-level mixing mechanism 3 includes a first drive motor 31, an adjustable eccentric structure 32, and a first mixing roller 33. The first drive motor 31 is installed on one side of the upper end of the fixed side plate 2, and several adjustable eccentric structures 32 are installed at both ends of the first mixing roller 33. The first mixing roller 33 is installed on the output shaft of the first drive motor 31 through the adjustable eccentric structure 32. The first drive motor 31 drives the first mixing roller 33 to rotate through the adjustable eccentric structure 32.

[0030] Preferably, a mounting platform 321 is provided at one end of the adjustable eccentric structure 32, and a mounting plane is provided at the upper and lower ends of the mounting platform 321. The adjustable eccentric structure 32 is installed on the output shaft of the first drive motor 31 by fixing bolts, and an offset sliding groove 322 is provided in the middle of the mounting platform 321, and an offset block 323 is installed in the offset sliding groove 322. Adjustment threaded holes 324 are provided in the middle of the upper and lower ends of the mounting platform 321, and a first adjustment bolt 325 is installed in the adjustment threaded hole 324 provided at the upper end of the mounting platform 321, and a second adjustment bolt 326 is installed in the adjustment threaded hole 324 provided at the lower end of the mounting platform 321, and the offset block 323 cooperates with the first adjustment bolt 325 and the second adjustment bolt 326 to form a clamping support state.

[0031] Preferably, the first mixing roller 33 includes a fixed plate 331, a first mixing rod 332, and a mounting bolt 333, and several of the fixed plates 331 are installed at both ends of the first mixing rod 332. One side of the fixed plate 331 is installed with several first mixing rods 332 distributed in a circular array, and the fixed plate 331 is installed on the adjustable eccentric structure 32 by means of the mounting bolts 333.

[0032] Preferably, a fixed threaded hole 3231 is provided in the middle of the offset block 323, and the first mixing roller 33 is installed by cooperating with the fixed threaded hole 3231 through the installation bolt 333, and the first mixing roller 33 is installed on one side of the adjustable eccentric structure 32. A limiting groove 3232 is provided in the middle of the upper and lower ends of the offset block 323, and the offset block 323 can slide vertically in the offset sliding groove 322. The installation position of the offset block 323 is fixed by the first adjusting bolt 325 and the second adjusting bolt 326 distributed above and below, and the first adjusting bolt 325 and the second adjusting bolt 326 are used to limit the limiting groove 3232, and can perform adjustment.

[0033] Preferably, the horizontal center line of the offset sliding groove 322 is higher than the horizontal center line of the mounting platform 321, so that the offset sliding groove 322 can be arranged in an eccentric manner.

[0034] Preferably, the secondary mixing mechanism 4 includes a second drive motor 41 and a second mixing roller 42. The second drive motor 41 is installed at the lower end of the middle part of the fixed side plate 2, and the second mixing roller 42 is installed on the output shaft of the second drive motor 41. The second drive motor 41 drives the second mixing roller 42 to rotate.

[0035] Preferably, the second mixing roller 42 includes a support frame 421 and a second mixing rod 422, and a plurality of the support frames 421 are installed at both ends of the second mixing rod 422. A plurality of second mixing rods 422 distributed in a circular array are installed on one side of the support frame 421. The other end of the second mixing roller 42 is installed together with an articulated bearing seat provided on the outside of the feed hopper, and the second mixing roller 42 is supported by the bearing articulated seat.

[0036] When the raw material mixing device for preparing self-compacting high-strength concrete is used, the concrete raw materials are directly poured into the feed hopper;

[0037] When it is necessary to adjust the primary mixing mechanism, the adjustment work is carried out by rotating the first adjusting bolt and the second adjusting bolt in the adjustable eccentric structure. First, the first adjusting bolt is rotated upward to provide sufficient moving space for the offset block, and then the second adjusting bolt is rotated upward to adjust the working position of the offset block. While the offset block is moving, it will drive the first mixing roller to move synchronously, so that the center of the first mixing roller deviates from the center of the first driving motor, forming an eccentric working state of the first mixing roller. When the moving position of the offset block is determined, the position of the offset block is fixed by tightening the first adjusting bolt and the second adjusting bolt. The threaded ends of the first adjusting bolt and the second adjusting bolt will cooperate with the limit grooves set at the upper and lower ends of the offset block to improve the positioning accuracy.

[0038] The first-stage mixing mechanism in the eccentric working state can obtain a larger mixing range, and through periodic eccentric swinging work, it can greatly improve the mixing force during mixing work;

[0039] When it is necessary to mix and pour materials according to different grades of materials, the working states of the primary mixing mechanism and the secondary mixing mechanism can be adjusted separately, and the mixing work can be carried out through different speed differences and working states.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or 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 shall be included in the protection scope of the present invention.

Claims

1. A raw material mixing device for preparing self-compacting high-strength concrete, the structure of which comprises a feed hopper (1), a fixed side plate (2), a primary mixing mechanism (3), and a secondary mixing mechanism (4), characterized in that: A plurality of the first-level material mixing mechanisms (3) are mounted on both sides of the upper end of the fixed side plate (2), the second-level material mixing mechanism (4) is mounted on the lower middle end of the fixed side plate (2), and the fixed side plate (2) is mounted on one side of the feed hopper (1); One end of the plurality of primary material mixing mechanisms (3) and secondary material mixing mechanisms (4) are mounted on the feed hopper (1) via an articulated bearing seat; The primary material mixing mechanism (3) comprises a first driving motor (31), an adjustable eccentric structure (32), and a first material mixing roller (33); the first driving motor (31) is mounted on one side of the upper end of the fixed side plate (2); a plurality of the adjustable eccentric structures (32) are mounted on both ends of the first material mixing roller (33); and the first material mixing roller (33) is mounted on an output shaft provided for the first driving motor (31) via the adjustable eccentric structure (32); A mounting platform (321) is provided at one end of the adjustable eccentric structure (32). The adjustable eccentric structure (32) is mounted on an output shaft of the first drive motor (31) by means of fixing bolts. An offset sliding groove (322) is provided in the middle of the mounting platform (321). An offset block (323) is installed in the offset sliding groove (322). Adjustment threaded holes (324) are provided in the middle of the upper and lower ends of the mounting platform (321). A first adjustment bolt (325) is installed in the adjustment threaded hole (324) provided at the upper end of the mounting platform (321). A second adjustment bolt (326) is installed in the adjustment threaded hole (324) provided at the lower end of the mounting platform (321). The offset block (323) cooperates with the first adjustment bolt (325) and the second adjustment bolt (326) to form a clamping support state.

2. A raw material mixing device for preparing self-compacting high-strength concrete according to claim 1, characterized in that: The first mixing roller (33) comprises a fixing plate (331), a first mixing rod (332), and a mounting bolt (333); a plurality of the fixing plates (331) are mounted at both ends of the first mixing rod (332); a plurality of first mixing rods (332) distributed in a ring array are mounted on one side of the fixing plate (331); and the fixing plate (331) is mounted on the adjustable eccentric structure (32) via the mounting bolt (333).

3. A raw material mixing device for preparing self-compacting high-strength concrete according to claim 2, characterized in that: A fixing threaded hole (3231) is provided in the middle of the offset block (323), and the first mixing roller (33) is installed by means of a mounting bolt (333) in cooperation with the fixing threaded hole (3231). Limiting grooves (3232) are provided in the middle of the upper and lower ends of the offset block (323), and the offset block (323) can slide vertically in the offset sliding groove (322).

4. The raw material mixing device for preparing self-compacting high-strength concrete according to claim 1, characterized in that: The horizontal center line of the offset sliding groove (322) is higher than the horizontal center line of the mounting platform (321).

5. The raw material mixing device for preparing self-compacting high-strength concrete according to claim 1, characterized in that: The secondary material mixing mechanism (4) comprises a second drive motor (41) and a second material mixing roller (42); the second drive motor (41) is mounted at the lower end of the middle portion of the fixed side plate (2); and the second material mixing roller (42) is mounted on an output shaft of the second drive motor (41).

6. A raw material mixing device for preparing self-compacting high-strength concrete according to claim 5, characterized in that: The second mixing roller (42) comprises a support frame (421) and a second mixing rod (422), a plurality of the support frames (421) being mounted at both ends of the second mixing rod (422), a plurality of second mixing rods (422) distributed in a circular array being mounted on one side of the support frame (421), and the other end of the second mixing roller (42) being mounted together with a hinged bearing seat provided on the outer side of the feed hopper.

Images