Self-excitation type concrete mixing arm

Abstract

The utility model discloses a self-excitation type concrete mixing arm, which relates to the technical field of concrete mixing, and comprises a mixing arm main body and a piezoelectric ceramic sensor, the piezoelectric ceramic sensor is fixedly sleeved on the upper end of the mixing arm main body, the lower side of the mixing arm main body is provided with a disc, the upper side of the disc is fixedly provided with a mounting ring, and the mounting ring is fixedly provided with a clamping groove. The mounting ring is fixedly connected with the lower end of the stirring arm body in a sleeving mode, a first cavity is formed in the disc, a plurality of clamping grooves are formed in the side wall of the disc in an annular array distribution mode, and flexible blades are connected into the clamping grooves in a clamped mode; and first insertion holes are formed in the positions, corresponding to the flexible blades, of the inner wall of the clamping groove, first insertion rods are fixedly arranged on the sides, close to the disc, of the flexible blades, and the first insertion rods are connected with the corresponding first insertion holes in an inserted mode. According to the utility model, the damaged stirring blades can be conveniently and independently replaced, the waste of materials is reduced, and the replacement cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete mixing, in particular to a self-excitation concrete mixing arm. Background Art

[0002] Stirring is a basic common technology in the chemical, food, pharmaceutical and other industries. Research on stirring began in the 1950s. Today, enhancing the mixing efficiency of fluids inside stirred reactors is the focus of research.

[0003] Among them, the announcement number CN204768530U discloses a self-excited vibration type flexible blade stirrer, which is characterized in that it includes a stirring shaft, the top end of the stirring shaft is connected to a power source, the bottom end of the stirring shaft is sleeved with a disc, a plurality of blades for stirring are arranged on the disc, the blades are flexible blades, and a plurality of damping sensors are arranged on the stirring shaft, and the damping sensors are piezoelectric ceramic sensors. There are still defects in this technical solution:

[0004] In this technical solution, since the multiple blades are fixedly connected to the disc, when some blades are damaged, the entire disc and the multiple blades need to be discarded and replaced, which not only wastes materials but also has a high replacement cost. Utility Model Content

[0005] In view of the above problems existing in the existing self-excited vibration type flexible blade agitator, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a self-excited concrete mixing arm, which solves the problem that in the self-excited vibration type flexible blade mixer in the prior art, since multiple blades are fixedly connected to the disc, when some blades are damaged, the entire disc and multiple blades need to be discarded and replaced, which not only wastes materials but also has high replacement costs.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A self-excited concrete mixing arm comprises a mixing arm body and a piezoelectric ceramic sensor, wherein the piezoelectric ceramic sensor is fixedly sleeved on the upper end of the mixing arm body, a disc is arranged on the lower side of the mixing arm body, a mounting ring is fixedly arranged on the upper side of the disc, the mounting ring is fixedly sleeved with the lower end of the mixing arm body, a first cavity is opened inside the disc, a plurality of slots are opened on the side wall of the disc in an annular array, flexible blades are clamped inside the plurality of slots, first plug holes are opened on the inner wall of the slot and at positions corresponding to the plurality of flexible blades, a first plug rod is fixedly arranged on one side of the flexible blade close to the disc, and the first plug rod is plugged into the corresponding first plug hole;

[0009] A first limiting mechanism for limiting the position of the flexible blades is arranged on the lower side of the disc.

[0010] Preferably, the first limiting mechanism includes a movable plate and a second plug rod, the bottom of the disc and the positions corresponding to the plurality of first plug rods are provided with second plug holes, the movable plate is arranged to abut against the lower side of the disc, the upper surface of the disc and the positions corresponding to the plurality of second plug holes are fixedly provided with second plug rods, the plurality of second plug rods are plugged into the corresponding second plug holes, the rod walls of the plurality of first plug rods and the positions corresponding to the second plug holes are provided with limiting holes, the upper ends of the plurality of second plug rods are plugged into the corresponding plug holes, the movable plate is arranged to abut against the lower side of the disc, the upper surface of the disc and the positions corresponding to the plurality of second plug holes are fixedly provided with second plug rods, the plurality of second plug rods are plugged into the corresponding second plug holes, A groove is provided in the middle of the movable plate, a cross bar is fixedly arranged inside the groove, a rotating bar is rotatably sleeved on the rod wall of the cross bar, a strip opening is provided in the middle of the lower surface of the disc, the upper end of the rotating bar extends through the strip opening to the inside of the first cavity, a wedge block is fixedly arranged on the inner wall of the upper middle end of the first cavity, a wedge-shaped groove is provided at the upper end of the rotating bar, the wedge block is clamped with the wedge-shaped groove, a second cavity is provided at the lower end of the rotating bar, and a second limiting mechanism for limiting the rotation of the rotating bar relative to the cross bar is provided inside the second cavity.

[0011] Preferably, the second limiting mechanism includes a limiting rod and a slide plate, the slide plate is slidably arranged inside the second cavity, the limiting rod is fixedly sleeved on the middle part of the slide plate, the middle end rod wall of the cross bar is provided with a socket, the upper end of the limiting rod is plugged into the socket, a spring is fixedly arranged on the lower surface of the slide plate, the other end of the spring is fixedly connected to the inner wall of the second cavity, and the lower end of the limiting rod extends to the outside of the second cavity.

[0012] Preferably, a pull block is fixedly provided on the lower end of the limiting rod.

[0013] Preferably, the cross-sections of the slide plate and the second cavity are both rectangular.

[0014] Preferably, the mounting ring is thread-lockedly connected to the stirring arm body via bolts.

[0015] Preferably, the surface of the flexible blade is sprayed with a wear-resistant coating.

[0016] Preferably, the plurality of flexible blades are integrally formed with the corresponding first insertion rods.

[0017] Preferably, both sides of the plurality of flexible blades are in contact with the inner walls of the corresponding slots.

[0018] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0019] The utility model can release the limiting rod from the cross rod by pulling the limiting rod, thus releasing the limiting of the rotating bar, and rotating the rotating bar with the cross rod as the axis, so that the wedge block is separated from the wedge groove, thus releasing the limiting of the movable plate, and pulling the movable plate to the side away from the disc, so that the second plug rod is released from the first plug rod, thus releasing the limiting of the plurality of flexible blades. At this time, the damaged flexible blade can be pulled out of the slot, so that the damaged stirring blade can be replaced separately, thereby reducing the waste of materials and the replacement cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 This is a structural schematic diagram of a self-excited concrete mixing arm proposed by the utility model;

[0022] Figure 2 for Figure 1 Schematic diagram of the disc structure when viewed from above;

[0023] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of part A in the middle.

[0024] Description of reference numerals:

[0025] 1. Stirring arm body; 2. Mounting ring; 3. Disc; 4. Flexible blades; 5. First plug rod; 6. Movable plate; 7. Second plug rod; 8. Cross bar; 9. Rotating bar; 10. Wedge block; 11. Limit rod; 12. Slide plate; 13. Spring; 14. Pull block; 15. Strip mouth; 16. Piezoelectric ceramic sensor. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] The utility model embodiment discloses a self-excited concrete stirring arm.

[0028] Embodiment 1

[0029] Reference Figure 1-3A self-excited concrete mixing arm comprises a mixing arm body 1 and a piezoelectric ceramic sensor 16. The piezoelectric ceramic sensor 16 is fixedly sleeved on the upper end of the mixing arm body 1. A disc 3 is arranged on the lower side of the mixing arm body 1. A mounting ring 2 is fixedly arranged on the upper side of the disc 3. The mounting ring 2 is fixedly sleeved with the lower end of the mixing arm body 1. The mounting ring 2 is thread-lockedly connected with the mixing arm body 1 by bolts, so that the mounting ring 2 and the mixing arm body 1 can be easily disassembled. A first cavity is provided inside the disc 3. A plurality of slots are provided on the side wall of the disc 3 in an annular array. The interiors of the plurality of slots are all clamped with Flexible blades 4, the surface of the flexible blades 4 is sprayed with a wear-resistant coating to improve the wear resistance of the flexible blades 4, and multiple flexible blades 4 are integrally formed with the corresponding first plug rods 5 to improve the connection strength between the flexible blades 4 and the corresponding first plug rods 5. Both sides of the multiple flexible blades 4 are in conflict with the inner walls of the corresponding slots, so that the flexible blades 4 can be stably connected to the slots, and the inner walls of the slots and the positions corresponding to the multiple flexible blades 4 are provided with first plug holes, and the side of the flexible blades 4 close to the disc 3 is fixedly provided with a first plug rod 5, and the first plug rod 5 is plugged into the corresponding first plug hole.

[0030] Embodiment 2

[0031] Reference Figure 1-3 A first limiting mechanism for limiting the position of the flexible blade 4 is arranged on the lower side of the disc 3. The first limiting mechanism includes a movable plate 6 and a second plug rod 7. Second plug holes are provided at the bottom of the disc 3 and at positions corresponding to the plurality of first plug rods 5. The movable plate 6 is arranged against the lower side of the disc 3. Second plug rods 7 are fixedly provided on the upper surface of the disc 3 and at positions corresponding to the plurality of second plug holes. The plurality of second plug rods 7 are plugged into the corresponding second plug holes. The rod walls of the plurality of first plug rods 5 and at positions corresponding to the second plug holes are provided with limiting Hole, the upper ends of multiple second plug rods 7 are all plugged into the corresponding plug holes, a groove is opened in the middle of the movable plate 6, a cross bar 8 is fixedly set inside the groove, a rotating bar 9 is rotatably sleeved on the rod wall of the cross bar 8, a strip-shaped opening 15 is opened in the middle of the lower surface of the disk 3, the upper end of the rotating bar 9 extends through the strip opening 15 to the inside of the first cavity, a wedge block 10 is fixedly set on the inner wall of the upper middle end of the first cavity, a wedge-shaped groove is opened at the upper end of the rotating bar 9, the wedge block 10 is clamped with the wedge-shaped groove, and a second cavity is opened at the lower end of the rotating bar 9.

[0032] Embodiment 3

[0033] Reference Figure 1-3A second limiting mechanism for limiting the rotation of the rotating bar 9 relative to the cross bar 8 is arranged inside the second cavity. The second limiting mechanism includes a limiting rod 11 and a slide plate 12. The slide plate 12 is slidably arranged inside the second cavity. The limiting rod 11 is fixedly sleeved on the middle part of the slide plate 12. A socket is provided on the middle end rod wall of the cross bar 8. The upper end of the limiting rod 11 is plugged into the socket. A spring 13 is fixedly arranged on the lower surface of the slide plate 12. The other end of the spring 13 is fixedly connected to the inner wall of the second cavity. The lower end of the limiting rod 11 extends to the outside of the second cavity. A pull block 14 is fixedly arranged on the lower end of the limiting rod 11 to facilitate pulling the limiting rod 11. The cross sections of the slide plate 12 and the second cavity are both rectangular, so that the slide plate 12 can slide stably.

[0034] In the utility model, when in use, the limit rod 11 is pulled to make the limit rod 11 leave the cross bar 8, that is, the limit on the rotating bar 9 is released, and the rotating bar 9 is rotated with the cross bar 8 as the axis, so that the wedge block 10 is separated from the wedge groove, that is, the limit on the movable plate 6 is released, and the movable plate 6 is pulled to the side away from the disc 3, so that the second insertion rod 7 leaves the first insertion rod 5, that is, the limit on the multiple flexible blades 4 is released. At this time, the damaged flexible blade 4 can be pulled out of the slot, that is, the damaged stirring blade can be replaced separately, which reduces the waste of materials and reduces the replacement cost.

[0035] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A self-excited concrete stirring arm, comprising a stirring arm body (1) and a piezoelectric ceramic sensor (16), characterized in that: The piezoelectric ceramic sensor (16) is fixedly sleeved on the upper end of the stirring arm body (1); a disc (3) is arranged on the lower side of the stirring arm body (1); a mounting ring (2) is fixedly arranged on the upper side of the disc (3); the mounting ring (2) is fixedly sleeved on the lower end of the stirring arm body (1); a first cavity is provided inside the disc (3); a plurality of slots are provided on the side wall of the disc (3) in an annular array; flexible blades (4) are clamped inside the plurality of slots; first plug holes are provided on the inner walls of the slots and at positions corresponding to the plurality of flexible blades (4); a first plug rod (5) is fixedly provided on one side of the flexible blade (4) close to the disc (3); the first plug rod (5) is plugged into the corresponding first plug hole; A first limiting mechanism for limiting the position of the flexible blade (4) is provided on the lower side of the disc (3).

2. The self-excited concrete mixing arm according to claim 1, characterized in that: The first limiting mechanism comprises a movable plate (6) and a second plug rod (7); second plug holes are provided at the bottom of the disk (3) and at positions corresponding to the plurality of first plug rods (5); the movable plate (6) is arranged to abut against the lower side of the disk (3); second plug rods (7) are fixedly provided on the upper surface of the disk (3) and at positions corresponding to the plurality of second plug holes; the plurality of second plug rods (7) are plugged into the corresponding second plug holes; limiting holes are provided on the rod walls of the plurality of first plug rods (5) and at positions corresponding to the second plug holes; the upper ends of the plurality of second plug rods (7) are plugged into the corresponding plug holes; the middle part of the movable plate (6) is provided with a second plug rod (7); A groove is provided, a cross bar (8) is fixedly arranged inside the groove, a rotating bar (9) is rotatably sleeved on the rod wall of the cross bar (8), a strip-shaped opening (15) is provided in the middle of the lower surface of the disc (3), the upper end of the rotating bar (9) passes through the strip opening (15) and extends to the inside of the first cavity, a wedge-shaped block (10) is fixedly arranged on the inner wall of the upper middle end of the first cavity, a wedge-shaped groove is provided at the upper end of the rotating bar (9), the wedge-shaped block (10) is engaged with the wedge-shaped groove, a second cavity is provided at the lower end of the rotating bar (9), and a second limiting mechanism for limiting the rotation of the rotating bar (9) relative to the cross bar (8) is provided inside the second cavity.

3. The self-excited concrete mixing arm according to claim 2, characterized in that: The second limiting mechanism comprises a limiting rod (11) and a slide plate (12), wherein the slide plate (12) is slidably arranged inside the second cavity, the limiting rod (11) is fixedly sleeved on the middle part of the slide plate (12), a plug hole is provided on the middle end rod wall of the cross bar (8), the upper end of the limiting rod (11) is plugged into the plug hole, a spring (13) is fixedly arranged on the lower surface of the slide plate (12), the other end of the spring (13) is fixedly connected to the inner wall of the second cavity, and the lower end of the limiting rod (11) extends to the outside of the second cavity.

4. The self-excited concrete mixing arm according to claim 3, characterized in that: A pull block (14) is fixedly arranged at the lower end of the limiting rod (11).

5. The self-excited concrete mixing arm according to claim 3, characterized in that: The cross sections of the slide plate (12) and the second cavity are both rectangular.

6. The self-excited concrete mixing arm according to claim 1, characterized in that: The mounting ring (2) is thread-lockedly connected to the stirring arm body (1) via bolts.

7. The self-excited concrete mixing arm according to claim 1, characterized in that: The surface of the flexible blade (4) is sprayed with a wear-resistant coating.

8. The self-excited concrete mixing arm according to claim 1, characterized in that: The plurality of flexible blades (4) are all integrally formed with the corresponding first insertion rods (5).

9. The self-excited concrete mixing arm according to claim 1, characterized in that: Both sides of the plurality of flexible blades (4) are in contact with the inner walls of the corresponding slots.

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