Bidirectional diffusion blade for concrete mixing

Abstract

The bidirectional diffusion blade comprises an upper rotating shaft and a lower rotating shaft, a splicing part is arranged between the upper rotating shaft and the lower rotating shaft, and stirring parts are arranged on the outer sides of the upper rotating shaft and the lower rotating shaft. The splicing part comprises an upper splicing plate connected with the outer side of the upper rotating shaft, a lower splicing plate connected with the outer side of the lower rotating shaft, inserting grooves formed in the two sides of the top of the lower splicing plate respectively, and containing cavities formed in the two sides of the interior of the upper splicing plate respectively. The concrete mixing bidirectional blade solves the problems that when an existing concrete mixing bidirectional blade is used, due to the fact that the blade needs to make continuous contact with concrete, the borne resistance is relatively large during mixing, the blade and a rotating shaft are prone to abrasion, the blade and the rotating shaft are generally fixed through welding, overall replacement is needed during replacement, replacement is relatively tedious, and the replacement cost is high. And therefore, the practicability is insufficient.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete mixing, in particular to a bidirectional diffusion blade used for concrete mixing. Background Art

[0002] Concrete is a general term for engineering composite materials that are bonded together by cementitious materials. The term concrete usually refers to cement as a cementitious material, sand and stone as aggregates, and water (which may contain admixtures and additives) mixed in a certain proportion. The cement concrete is also called ordinary concrete, which is widely used in civil engineering. When concrete is produced and used, it needs to be stirred and mixed with blades.

[0003] The existing patent CN205969487U discloses a concrete mixing shaft, which belongs to the technical field of engineering machinery and equipment, and is composed of an upper mixing shaft, a lower mixing shaft and an intermediate mixing blade. The upper mixing shaft and the lower mixing shaft are coaxially connected, and the intermediate mixing blade is installed at the shaft connection position of the upper mixing shaft and the lower mixing shaft. The upper mixing shaft also includes an upper shaft body and an upper spiral blade, the upper spiral blade hovers around the surface of the upper shaft body, and the upper spiral blade is a downward rotating structure. The lower mixing shaft also includes a lower shaft body and a lower spiral blade, the lower spiral blade hovers around the surface of the lower shaft body, and the lower spiral blade is an upward rotating structure. The intermediate mixing blade also includes a mounting shaft and a blade, and the mounting shaft is located at the connection between the upper shaft body and the lower shaft body, and is used to connect the blade to the shaft body. The utility model adopts a bidirectional spiral blade and an intermediate mixing blade to improve the concrete mixing effect and safety of use, and extend the service life of the mixing device.

[0004] Based on the search of the above patents and in combination with the blades in the prior art, it is found that when the existing concrete mixing bidirectional blades are in use, because the blades need to be in continuous contact with the concrete and the resistance they withstand during mixing is relatively large, the blades and the rotating shaft are easily worn. The blades and the rotating shaft are usually fixed by welding, and when replaced, they need to be replaced as a whole, which is relatively cumbersome, resulting in insufficient practicality. Utility Model Content

[0005] The utility model aims to provide a bidirectional diffusion blade for concrete mixing, so as to solve the problem that the existing bidirectional diffusion blade for concrete mixing proposed in the above background technology needs to be in continuous contact with concrete during use, and the resistance it bears during mixing is relatively large, so the blade and the rotating shaft are easily worn, and the blade and the rotating shaft are usually fixed by welding. When replacing, the whole blade needs to be replaced, which is relatively cumbersome, resulting in insufficient practicality.

[0006] To achieve the above object, the utility model provides the following technical solution: a bidirectional diffusion blade for concrete mixing, comprising an upper rotating shaft and a lower rotating shaft, a splicing component is provided between the upper rotating shaft and the lower rotating shaft, and a stirring component is provided on the outer sides of the upper rotating shaft and the lower rotating shaft;

[0007] The splicing components include an upper splicing plate connected to the outer side of the upper rotating shaft, a lower splicing plate connected to the outer side of the lower rotating shaft, slots respectively opened on both sides of the top of the lower splicing plate, accommodating cavities respectively opened on both sides of the upper splicing plate, inclined blocks respectively arranged on both sides of the accommodating cavity, an extrusion block matched with the inclined block, a cross bar connected to one side of the inclined block, a spring arranged on the outer side of the cross bar, jacks respectively opened on both sides of the slot, a driving frame connected to the top of the extrusion block and a screw connected to the driving frame, the screw is screwed to the driving frame, and the screw is rotatably connected to the upper splicing plate.

[0008] Preferably, the stirring component includes an upper spiral blade fixedly connected to the outer side of the upper rotating shaft, a lower spiral blade fixedly connected to the outer side of the lower rotating shaft, a cross bar respectively connected to both sides of the upper rotating shaft and the lower rotating shaft, and a first blade connected to the cross bar, the first blade is rotatably connected to the cross bar, the upper spiral blade is a downward rotating structure, and the lower spiral blade is an upward rotating structure.

[0009] Preferably, auxiliary grooves are respectively provided on both sides of the accommodating cavity, auxiliary blocks are slidably connected in the auxiliary grooves, and a transverse plate is fixedly connected between the auxiliary blocks and the driving frame.

[0010] Preferably, two evenly arranged second blades are fixedly connected to both sides of the crossbar, and a third blade is fixedly connected between each pair of the second blades.

[0011] Preferably, a limiting groove is provided on the top of the lower rotating shaft, a limiting block is fixedly connected to the bottom of the upper rotating shaft, and the limiting block is plugged into the limiting groove.

[0012] Preferably, a limiting plate is provided at the bottom of the screw rod, and the limiting plate is fixedly connected to the screw rod.

[0013] Preferably, a rotating plate is provided on the top of the screw rod, and the rotating plate is fixedly connected to the screw rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. By setting the upper rotating shaft, the lower rotating shaft and the splicing parts, the upper splicing plate and the lower splicing plate can contact each other, and the upper splicing plate can be inserted into the slot. By turning the screw rod to rotate, the driving frame can be pushed to drive the extrusion block to move downward. The extrusion block moves downward to contact the inclined block and push the inclined block to move horizontally, so that the cross bar can be inserted into the jack, and the lower rotating shaft and the upper rotating shaft can be spliced ​​and fixed. When the upper spiral blade or the lower spiral blade is worn, the upper spiral blade or the lower spiral blade can be replaced separately without replacing the entire blade, which can reduce maintenance costs, prevent waste, and greatly improve the practicality of the device;

[0016] 2. By providing a stirring component, the upper rotating shaft and the lower rotating shaft can drive the upper spiral blade and the lower spiral blade to rotate, and the concrete can be diffused and stirred in two directions, so that the upper stirring shaft drives the concrete to move downward, and the lower stirring shaft drives the concrete to move upward, and the upper rotating shaft and the lower rotating shaft can synchronously drive the fixed rod to rotate, and the movement of the concrete can drive the first blade to rotate vertically, so that the concrete can be fully mixed and the mixing efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure provided by the utility model;

[0018] Figure 2 A left side view provided for the utility model;

[0019] Figure 3 The utility model provides Figure 2 The three-dimensional cross-section view at AA in the middle;

[0020] Figure 4 The utility model provides Figure 3 Enlarged view of point B in the middle.

[0021] In the figure: 1, upper rotating shaft; 11, lower rotating shaft; 21, upper splicing plate; 22, lower splicing plate; 23, slot; 24, accommodating chamber; 25, inclined block; 26, extrusion block; 27, cross bar; 28, spring; 29, jack; 30, driving frame; 31, screw; 41, upper spiral blade; 42, lower spiral blade; 43, fixing rod; 44, first blade; 51, auxiliary slot; 52, auxiliary block; 53, cross plate; 61, second blade; 62, third blade; 71, limit slot; 72, limit block; 311, limit plate; 312, rotating plate. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1 , Figure 2 , Figure 3 as well as Figure 4The utility model provides a technical solution: a bidirectional diffusion blade for concrete mixing, comprising an upper rotating shaft 1 and a lower rotating shaft 11, a splicing component is arranged between the upper rotating shaft 1 and the lower rotating shaft 11, and a stirring component is arranged on the outer sides of the upper rotating shaft 1 and the lower rotating shaft 11, and the splicing component comprises an upper splicing plate 21 connected to the outer side of the upper rotating shaft 1, a lower splicing plate 22 connected to the outer side of the lower rotating shaft 11, slots 23 respectively arranged on both sides of the top of the lower splicing plate 22, accommodating cavities 24 respectively arranged on both sides of the upper splicing plate 21, inclined blocks 25 respectively arranged on both sides of the accommodating cavity 24, an extrusion block 26 matched with the inclined block 25, a cross bar 27 connected to one side of the inclined block 25, a spring 28 arranged on the outer side of the cross bar 27, and a spring 29 respectively arranged on the outer side of the cross bar 27. The jacks 29 on both sides of the slot 23, the drive frame 30 connected to the top of the extrusion block 26, and the screw 31 connected to the drive frame 30, the screw 31 is screwed with the drive frame 30, the screw 31 is rotatably connected to the upper splicing plate 21, the cross bar 27 is plugged with the jack 29, the cross bar 27 passes through the accommodating cavity 24 and is slidably connected to the upper splicing plate 21, the two ends of the spring 28 are respectively fixedly connected to the inner wall of the accommodating cavity 24 and the inclined block 25, the upper splicing plate 21 and the lower splicing plate 22 can contact each other, the upper splicing plate 21 can be inserted into the slot 23, the drive frame 30 can be driven to move downward by rotating the screw 31, the downward movement of the drive frame 30 can make the extrusion block 26 move downward, the extrusion block 26 contacts the inclined block 25 and squeezes the inclined block 25 to move The inclined block 25 can drive the cross bar 27 to be inserted into the insertion hole 29, and then the lower rotating shaft 11 and the upper rotating shaft 1 can be spliced ​​and fixed. When the subsequent wear needs to be replaced, there is no need to replace the entire body, which prevents waste and can reduce maintenance costs. Auxiliary grooves 51 are respectively opened on both sides of the accommodating cavity 24, and auxiliary blocks 52 are slidably connected in the auxiliary grooves 51. A cross plate 53 is fixedly connected between the auxiliary block 52 and the driving frame 30. The driving frame 30 can drive the cross plate 53 and the auxiliary block 52 to move vertically synchronously. The auxiliary block 52 can prevent the driving frame 30 from rotating synchronously with the screw 31, which can ensure the vertical movement stability of the driving frame 30 and the extrusion block 26. A limiting groove 71 is opened at the top of the lower rotating shaft 11, and the bottom of the upper rotating shaft 1 is fixedly connected A limit block 72 is connected, and the limit block 72 is plugged into the limit groove 71. The limit block 72 can be inserted into the limit groove 71, and the lower rotating shaft 11 can be limited to prevent it from lateral displacement, thereby ensuring the stability of the splicing. A limit plate 311 is provided at the bottom of the screw rod 31, and the limit plate 311 is fixedly connected to the screw rod 31. The limit plate 311 can limit the vertical movement distance of the drive frame 30 to prevent the drive frame 30 from separating from the screw rod 31 when moving. A rotating plate 312 is provided at the top of the screw rod 31, and the rotating plate 312 is fixedly connected to the screw rod 31. The rotating plate 312 can conveniently drive the screw 31 to rotate, thereby conveniently controlling the position of the extrusion block 26 and conveniently connecting or separating the upper rotating shaft 1 and the lower rotating shaft 11.

[0024] See also Figure 1 , Figure 2 as well as Figure 3The stirring component includes an upper spiral blade 41 fixedly connected to the outer side of the upper rotating shaft 1, a lower spiral blade 42 fixedly connected to the outer side of the lower rotating shaft 11, a fixed rod 43 respectively connected to both sides of the upper rotating shaft 1 and the lower rotating shaft 11, and a first blade 44 connected to the fixed rod 43, the first blade 44 is rotatably connected to the fixed rod 43, the upper spiral blade 41 is a downward rotating structure, and the lower spiral blade 42 is an upward rotating structure. The upper spiral blade 41 and the lower spiral blade 42 can perform bidirectional diffusion stirring on the concrete, the upper spiral blade 41 can drive the concrete to move downward, and the lower spiral blade 42 can drive the concrete to move upward, so that it can be mixed, and the concrete can drive the first blade 44 to rotate, which can improve the mixing efficiency of the concrete, and two evenly arranged second blades 61 are fixedly connected on both sides of the fixed rod 43, and a third blade 62 is fixedly connected between the two second blades 61, and the second blade 61 and the third blade 62 can rotate synchronously with the fixed rod 43, so as to stir the concrete and improve the stirring performance.

[0025] Working principle: during operation, align the limit groove 71 at the top of the lower rotating shaft 11 with the limit block 72 at the bottom of the upper rotating shaft 1, and insert the limit block 72 into the limit groove 71. At this time, the upper splicing plate 21 is inserted into the slot 23, and then the rotating plate 312 can be rotated, and the rotating plate 312 can drive the screw 31 to rotate. The rotation of the screw 31 can drive the driving frame 30 to move downward, and the downward movement of the driving frame 30 can drive the extrusion block 26 to move downward. The downward movement of the extrusion block 26 can contact the two inclined blocks 25 and squeeze the two inclined blocks 25 to move horizontally. The movement of the inclined block 25 can drive the cross bar 27 to move, and at the same time, the spring 28 can be squeezed to deform it. The movement of the cross bar 27 can be inserted into the socket 29, and then the lower rotating shaft 11 and the upper rotating shaft 1 can be spliced ​​and fixed, and the upper spiral The blades 41 and the lower spiral blades 42 can perform bidirectional diffusion stirring on the concrete. The upper spiral blades 41 can drive the concrete to move downward, and the lower spiral blades 42 can drive the concrete to move upward to mix the concrete. The concrete can drive the first blade 44 to rotate vertically, which can improve the mixing efficiency of the concrete. When it is necessary to replace the damaged lower spiral blade 42 or upper spiral blade 41, the rotating plate 312 can be rotated in the opposite direction, so that the extrusion block 26 can be separated from the inclined block 25. The cross bar 27 reset by the spring 28 at this time is reset, and the cross bar 27 is reset to be separated from the socket 29, and then a new one can be replaced. The above is the working process of the entire device, and the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bidirectional diffusion blade for concrete mixing, comprising an upper rotating shaft (1) and a lower rotating shaft (11), characterized in that: A splicing component is provided between the upper rotating shaft (1) and the lower rotating shaft (11), and stirring components are provided on the outer sides of the upper rotating shaft (1) and the lower rotating shaft (11); The splicing component comprises an upper splicing plate (21) connected to the outer side of the upper rotating shaft (1), a lower splicing plate (22) connected to the outer side of the lower rotating shaft (11), slots (23) respectively arranged on both sides of the top of the lower splicing plate (22), accommodating chambers (24) respectively arranged on both sides of the upper splicing plate (21), inclined blocks (25) respectively arranged on both sides of the accommodating chamber (24), an extrusion block (26) matched with the inclined block (25), a cross bar (27) connected to one side of the inclined block (25), a spring (28) arranged on the outer side of the cross bar (27), jacks (29) respectively arranged on both sides of the slots (23), a driving frame (30) connected to the top of the extrusion block (26), and a screw rod (31) connected to the driving frame (30), wherein the screw rod (31) is screwed to the driving frame (30), and the screw rod (31) is rotatably connected to the upper splicing plate (21).

2. The bidirectional diffusion blade for concrete mixing according to claim 1, characterized in that: The stirring component comprises an upper spiral blade (41) fixedly connected to the outer side of the upper rotating shaft (1), a lower spiral blade (42) fixedly connected to the outer side of the lower rotating shaft (11), a fixing rod (43) respectively connected to both sides of the upper rotating shaft (1) and the lower rotating shaft (11), and a first blade (44) connected to the fixing rod (43), wherein the first blade (44) is rotatably connected to the fixing rod (43), the upper spiral blade (41) is a downward rotating structure, and the lower spiral blade (42) is an upward rotating structure.

3. The bidirectional diffusion blade for concrete mixing according to claim 1, characterized in that: Auxiliary grooves (51) are respectively provided on both sides of the accommodating cavity (24), an auxiliary block (52) is slidably connected in the auxiliary groove (51), and a transverse plate (53) is fixedly connected between the auxiliary block (52) and the driving frame (30).

4. The bidirectional diffusion blade for concrete mixing according to claim 2, characterized in that: Two evenly arranged second blades (61) are fixedly connected to both sides of the fixing rod (43), and a third blade (62) is fixedly connected between each pair of the second blades (61).

5. The bidirectional diffusion blade for concrete mixing according to claim 1, characterized in that: A limiting groove (71) is provided at the top of the lower rotating shaft (11), a limiting block (72) is fixedly connected to the bottom of the upper rotating shaft (1), and the limiting block (72) is plugged into the limiting groove (71).

6. The bidirectional diffusion blade for concrete mixing according to claim 1, characterized in that: A limiting plate (311) is provided at the bottom of the screw rod (31), and the limiting plate (311) is fixedly connected to the screw rod (31).

7. The bidirectional diffusion blade for concrete mixing according to claim 1, characterized in that: A rotating plate (312) is provided on the top of the screw rod (31), and the rotating plate (312) is fixedly connected to the screw rod (31).

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