Multifunctional concrete mixing device

Abstract

The present invention relates to the technical field of mixing equipment, and in particular to a multifunctional concrete mixing device, comprising a mixing bin, wherein an upward supporting outer cylinder is arranged at the bottom of the mixing bin, wherein the revolution driving device comprises a revolution driving source arranged at the lower end of the supporting outer cylinder, wherein the output shaft of the revolution driving source is connected to an upward main shaft, wherein an inner supporting cylinder matched with the main shaft is arranged at the upper end of the supporting outer cylinder, wherein a sealing support member 1 is arranged between the inner supporting cylinder and the main shaft, wherein the sealing support member 1 comprises a sealing bearing, a lower supporting ring, and an upper supporting ring which are sequentially installed from bottom to top, wherein the lower supporting ring and the upper supporting ring are matched with the supporting inner cylinder through a sealing ring, wherein the supporting inner cylinder forms a multi-point stable support for the main shaft through the sealing bearing, the lower supporting ring, and the upper supporting ring, wherein the main shaft can still work stably under the condition of being subjected to a large deflection force.

Description

Technical Field

[0001] The invention relates to the technical field of mixing equipment, in particular to a multifunctional concrete mixing device. Background Art

[0002] Concrete mixers mainly include vertical mixers and horizontal mixers. Vertical mixers are smaller in size and are mainly used in situations where material demand is small. Because vertical mixers mix up and down, the mixing effect is more uniform, making them suitable for mixing a variety of concrete materials, thus reflecting their versatility.

[0003] The existing multifunctional mixer mainly includes a mixing chamber, in which a main shaft is arranged, a plurality of cantilevers are arranged on the main shaft, a stirring rod is arranged at the end of the cantilever, and the main shaft is connected to a revolution drive device to realize forced mixing. In order to better achieve the mixing effect, the technicians in this field have developed a multifunctional mixer that can make the stirring rod rotate during the revolution, and the transmission is carried out through a transmission belt or chain or gear. Since the amount of concrete mixing is large, the stirring teeth need to have a large torque, and the cantilever is long, resulting in poor stability of the main shaft and poor sealing performance, which cannot meet the needs of concrete mixing. Therefore, in actual use, it is difficult to ensure the stability of the main shaft during the rotation of the stirring teeth, and rotating stirring teeth are generally not used. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a multifunctional concrete mixing device which can ensure the stability of the main shaft and thus achieve stable operation when the stirring teeth rotate.

[0005] The present invention is achieved through the following technical solutions: a multifunctional concrete mixing device comprises a mixing chamber, a main shaft is arranged in the mixing chamber, a plurality of cantilevers are arranged on the main shaft, a mixing rod is arranged at the end of the cantilever, the main shaft is connected with a revolution driving device, the upper end of the mixing chamber is open, an upward supporting outer cylinder is arranged at the bottom of the mixing chamber, the revolution driving device comprises a revolution driving source arranged at the lower end of the supporting outer cylinder, the output shaft of the revolution driving source is connected to the upward main shaft, a supporting inner cylinder matching with the main shaft is arranged at the upper end of the supporting outer cylinder, a sealing support member 1 is arranged between the supporting inner cylinder and the main shaft, the main shaft extends upwardly out of the supporting inner cylinder and is connected with a connecting cover, the cantilever is connected with the connecting cover, the supporting inner cylinder extends upward to the outside of the supporting outer cylinder to form a connecting cylinder, a sealing support member 2 is arranged between the connecting cover and the connecting cylinder, and at least one mixing rod is connected with a rotation driving device.

[0006] Furthermore, the sealing support member 1 includes a sealing bearing, a lower support ring, and an upper support ring which are arranged in sequence from bottom to top, and the lower support ring and the upper support ring are both matched with the support inner tube through a sealing ring, and a lubricating oil chamber is formed between the lower support ring and the upper support ring, and the lubricating oil chamber is connected to a lubricating oil replenishing device, and the lubricating oil replenishing device includes an oil filling hole arranged in the main shaft, and the upper end of the oil filling hole extends to the upper end surface of the main shaft, and a separator ring is arranged in the lubricating oil chamber, and the lower end of the oil filling hole extends to the upper side of the separator ring.

[0007] Furthermore, the revolution driving source is a hydraulic motor 1, which is connected to the main shaft through a reducer, the main shaft is made of pipe fittings, the output shaft of the reducer is a hollow shaft, and the rotation driving device includes a hydraulic motor 2 arranged at the end of the corresponding cantilever, the hydraulic motor 2 is connected to a high-pressure oil pipe and a low-pressure oil pipe, and the high-pressure oil pipe and the low-pressure oil pipe are connected to the hydraulic station through concentric oil pipes passing through the main shaft and the output shaft of the reducer, the concentric oil pipe includes a low-pressure outer pipe, a high-pressure inner pipe is installed on the coaxial line inside the low-pressure outer pipe, the high-pressure inner pipe is isolated from the low-pressure outer pipe, the low-pressure outer pipe is connected to the low-pressure oil pipe, and the high-pressure outer pipe is connected to the high-pressure oil pipe, a rotary joint is provided on the concentric oil pipe, and the concentric oil pipe located on the upper side of the rotary joint rotates with the main shaft.

[0008] Furthermore, a support frame matched with the concentric oil pipeline is arranged in the main shaft, and the mixing chamber is connected with a support seat matched with the concentric oil pipeline.

[0009] Furthermore, the self-rotation drive device includes a downward support sleeve 1 arranged at the end of the corresponding cantilever, the support sleeve 1 is rotatably connected to the corresponding stirring rod, the support outer cylinder is provided with a lever for driving the stirring rod to rotate, and the stirring rod is provided with a driven rod cooperating with the lever, and the stirring rod passes through the lever during the revolution and is driven by the lever to rotate.

[0010] Furthermore, a force storage device is provided between the support sleeve 1 and the corresponding stirring rod, and the force storage device stores force when the lever moves the stirring rod. The force storage device includes a force storage spring provided between the support sleeve 1 and the stirring rod.

[0011] Furthermore, the stirring rod is connected to a driven gear 1, and a driving gear 1 is arranged on the cantilever. The driving gear 1 and the driven gear 1 are transmission-connected, and the driving gear 1 is connected to the driven rod, the driven rod is arranged horizontally, and the shifting rod is arranged vertically.

[0012] Furthermore, the second sealing support member includes a sealing disk arranged on the connecting cylinder, the self-rotation driving device includes a gear ring arranged on the sealing disk, a transmission shaft is arranged in the cantilever, and a driving gear 2 matching the gear ring is arranged on the transmission shaft, and the transmission shaft and the stirring rod are driven by a bevel gear pair.

[0013] Furthermore, the mixing chamber is cylindrical, and the lengths of the multiple cantilevers are different.

[0014] The beneficial effects of the present invention are:

[0015] 1. The sealing support member includes a sealing bearing, a lower support ring, and an upper support ring which are installed in sequence from bottom to top. The lower support ring and the upper support ring cooperate with the support inner cylinder through a sealing ring. The sealing bearing, the lower support ring, and the upper support ring enable the support inner cylinder to form multi-point stable support for the main shaft, so that the main shaft can still work stably when subjected to a large deflection force.

[0016] 2. When the rotating rod is driven by the cantilever to perform orbital motion, the rotating frame automatically rotates under the condition of uneven force, that is, the different resistances on the vertical rod cause the rotating frame to rotate, thereby improving the stirring effect.

[0017] 3. By driving the rotating rod to rotate through hydraulic motor 2, the rotation speed of the rotating rod can be controlled, which greatly improves the stirring effect. However, the concentric oil pipe located at the lower side of the rotary joint and the concentric oil pipe located at the upper side of the rotary joint can rotate relative to each other, and the oil delivery stability is poor. It is suitable for stirring at low speed revolution and requires regular maintenance. Since the high-pressure inner tube is located on the inside and the low-pressure outer tube is located on the outside, the high-pressure oil in the high-pressure inner tube is buffered when it leaks into the low-pressure outer tube, and the return oil pressure of the low-pressure outer tube is detected. When the return oil pressure of the low-pressure outer tube exceeds the preset value, maintenance is carried out. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of Example 1;

[0019] Figure 2 This is a schematic diagram of the cantilever structure of Example 1;

[0020] Figure 3 This is a schematic diagram of disassembling the supporting outer cylinder;

[0021] Figure 4 It is a schematic diagram of the cross section of the supporting outer cylinder;

[0022] Figure 5 This is a schematic cross-sectional view of the main shaft of Example 2;

[0023] Figure 6 This is a schematic cross-sectional view of the spindle end portion of Example 2;

[0024] Figure 7Schematic diagram of top view of the spindle end of Example 2

[0025] Figure 8 for Figure 5 A in the middle is a partial enlarged schematic diagram;

[0026] Fig. 9 It is a top view of the rotary joint;

[0027] Fig.10 The main cross-sectional view of the rotary joint

[0028] Fig.11 for Figure 5 A partial enlarged schematic diagram of point B in the middle;

[0029] Fig.12 This is a schematic diagram of the installation position of the lever in Example 3;

[0030] Fig.13 This is a cross-sectional schematic diagram of a support sleeve of Example 3;

[0031] Fig.14 This is a top view schematic diagram of a support sleeve 1 of Example 3;

[0032] Fig.15 This is a schematic diagram of the connection relationship between the driven rod and the stirring rod in Example 4;

[0033] Fig.16 This is a schematic diagram of the connection relationship between the driven rod and the stirring rod in Example 5;

[0034] Fig.17 This is a cross-sectional schematic diagram of the connection between the gear ring and the stirring rod in Example 6;

[0035] Among them: 1. Mixing chamber; 2. Support outer cylinder; 3. Connecting cover; 4. Cantilever; 5. Fixed rod; 6. Support sleeve 1; 601. Cylinder sleeve; 602. Bearing 2; 603. Packing; 604. Sealing cover; 605. Spring; 606. Inner slot; 607. Outer slot; 608. Driving ring; 609. Follower rod; 610. Driving gear 1; 611. Process hole; 612. Gear ring; 613. Bearing seat; 614. Transmission shaft; 615. Bevel gear pair; 616. Clutch; 7. Rotating rod; 701. Rotating shaft; 702. Rotating frame; 703. Vertical rod; 8. Support plate; 9. Hydraulic motor 1; 10. Flange; 11. Support inner cylinder; 12. Sealing disk; 13. Main Shaft; 14, oil filling hole; 15, sealed bearing; 16, lower support ring; 17, upper support ring; 18, separator ring; 19, lubricating oil chamber; 20, concentric oil pipeline; 21, upper support frame; 22, reducer; 23, transmission gear 1; 24, output shaft of reducer; 25, input shaft of reducer; 26, pressure cap; 27, disc spring; 28, pressure sleeve; 29, opening; 30, high-pressure connecting pipe; 31, low-pressure connecting pipe; 32, low-pressure outer pipe; 33, high-pressure inner pipe; 34, positioning ring; 35, bushing; 36, lower support frame; 37, outer connecting ring; 38, inner connecting ring; 39, support seat; 40, ball; 41, connecting plate; 42, connecting ring; 43, lever; 44, sealing ring. DETAILED DESCRIPTION

[0036] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of the embodiments. Based on the embodiments of the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0038] Example 1

[0039] like Figure 1-4As shown, a multifunctional concrete mixing device comprises a mixing chamber 1, which is a cylindrical chamber with an opening at the upper end. The mixing chamber 1 is installed on a fixed or movable platform through a frame. An upward supporting outer cylinder 2 is coaxially installed at the bottom of the mixing chamber 1. The supporting outer cylinder 2 is sealed and welded to the bottom of the mixing chamber 1. A mounting port is also processed at the bottom of the mixing chamber 1 at the supporting outer cylinder 2, so as to pass cables and oil pipes, or connect an external driving source. An upward main shaft 13 is coaxially installed inside the supporting outer cylinder 2. The upper end of the main shaft 13 extends to the outside of the supporting outer cylinder 2 and is connected to 3-4 cantilevers 4. A stirring rod is installed at the end of the cantilever 4. In order to improve the stirring effect, the lengths of the cantilevers 4 are different, so as to ensure the stirring effect of each stirring rod. The rotation trajectory is different. In order to further improve the stirring effect, the stirring rod includes a fixed rod 5 fixedly connected to the corresponding cantilever 4 and a rotating rod rotatably connected to the corresponding cantilever 4. Since the cantilever 4 and the stirring rod are subjected to uneven force, in order to ensure stable operation, a supporting inner cylinder 11 coaxially installed on the upper end of the supporting outer cylinder 2 and matched with the main shaft 13 is provided. For easy installation, the supporting inner cylinder 11 is detachably coaxially connected to the supporting outer cylinder 2 through a supporting plate 8. A sealing support member 1 is installed between the supporting inner cylinder 11 and the main shaft 13. In this embodiment, the sealing support member 1 includes a sealing bearing 15, a lower supporting ring 16, and an upper supporting ring 17 installed in sequence from bottom to top. The lower supporting ring 16 and the upper supporting ring 17 are connected to the supporting inner cylinder through a sealing ring. 11 cooperates, and the support inner cylinder 11 forms a multi-point stable support for the main shaft 13 through the sealed bearing 15, the lower support ring 16, and the upper support ring 17. The main shaft 13 can still work stably under the condition of large deflection force. A lubricating oil chamber 19 is formed between the lower support ring 16 and the upper support ring 17. The lubricating oil chamber 19 is connected to a lubricating oil replenishing device. For the convenience of filling lubricating oil, the lubricating oil replenishing device includes an oil filling hole 14 machined in the main shaft 13, and the upper end of the oil filling hole 14 extends to the upper end surface of the main shaft 13. A separator ring 18 is installed in the lubricating oil chamber 19, and the lower end of the oil filling hole 14 extends to the upper side of the separator ring 18, and then the lubricating oil is filled to the upper side of the separator ring 18 through the oil filling hole 14, which is blocked by the separator ring 18. The oil lubricates the upper support ring 17 and flows downward under the action of gravity. After passing the separation ring 18, the oil lubricates the lower support ring 16. The main shaft 13 extends upwardly from the support inner cylinder 11 and is connected with the connecting cover 3. The cantilever 4 is connected to the connecting cover 3. The support inner cylinder 11 extends upward to the outside of the support outer cylinder 2 to form a connecting cylinder. A sealing support component 2 is installed between the connecting cover 3 and the connecting cylinder. Specifically, the sealing support component 2 includes a sealing disk 12 fixed on the connecting cylinder. The sealing disk 12 and the connecting cover 3 are clearance-matched and oil film sealing is performed by grease. The main shaft 13 and the connecting cover 3 are supported and positioned by the sealing support component 1 and the sealing support component 2 to ensure stable operation of the stirring rod.

[0040] In this embodiment, the main shaft 13 is connected to a revolution drive device, which includes a revolution drive source installed at the lower end of the supporting outer cylinder 2. The output shaft of the revolution drive source is connected to the upward main shaft 13. The revolution drive source is a hydraulic motor 9. The hydraulic motor 9 is coaxially connected to the supporting inner cylinder 11 through a flange 10. The driving oil pipe of the hydraulic motor 9 passes downward through the installation port and is connected to the hydraulic station.

[0041] In this embodiment, the rotating rod 7 is connected to a rotation drive device, which includes a downward support sleeve 6 fixed at the end of the corresponding cantilever 4, and the support sleeve 6 is rotatably connected to the corresponding rotating rod 7. The rotating rod 7 includes a rotating shaft 701 connected to the support sleeve 6 through a bearing 2 602, and the support sleeve 6 includes a downward-opening sleeve 601 connected to the cantilever 4, and the rotating shaft 701 is coaxially connected to the sleeve 601. The lower end of the rotating shaft 701 is connected to a rotating frame 702, and 3-4 vertical rods 703 are installed on the rotating frame 702. When the rotating rod 7 is driven by the cantilever 4 to perform orbital motion, the rotating frame 702 automatically rotates under uneven force, that is, the vertical rod 703 is subjected to different resistances, resulting in the rotating frame 702 rotating, thereby improving the stirring effect. It is found during use that the rotation amplitude of this type of rotation is small, and the improvement of the stirring effect is not obvious, but the service life is long.

[0042] Example 2

[0043] like Figure 5-11 As shown, a multifunctional concrete mixing device, which is different from Example 1, is that a hydraulic motor 9 is connected to a main shaft 13 through a reducer, and a hydraulic motor 9 is connected to an input shaft 25 of the reducer, the main shaft 13 is made of a pipe fitting, and an output shaft 24 of the reducer is a hollow shaft, and the input shaft 25 of the reducer and the output shaft 24 of the reducer are transmitted through a transmission gear 23, and the output shaft 24 of the reducer is fixedly connected to the main shaft 13 coaxially through a sleeve 35, and the rotary drive device includes a hydraulic motor 2 installed at the end of a corresponding cantilever 4, and the hydraulic motor 2 is fixedly installed in a support sleeve 6, and the hydraulic motor 2 is connected with a high-pressure oil pipe and a low-pressure oil pipe, and the high-pressure oil pipe and the low-pressure oil pipe pass through the main shaft 13 and the output shaft of the reducer 22. The concentric oil pipeline 20 is connected to the hydraulic station, the concentric oil pipeline 20 includes a low-pressure outer pipe 32, a high-pressure inner pipe 33 is coaxially installed in the low-pressure outer pipe 32, the high-pressure inner pipe 33 is isolated from the low-pressure outer pipe 32, a high-pressure connecting pipe 30 and a low-pressure connecting pipe 31 are installed in the cantilever 4, the high-pressure connecting pipe 30 is connected to the high-pressure inner pipe 33, the low-pressure connecting pipe 31 is connected to the low-pressure outer pipe 32, the low-pressure outer pipe 32 is connected to the low-pressure oil pipe, and the high-pressure outer pipe is connected to the high-pressure oil pipe. The high-pressure hydraulic oil passes through the high-pressure oil pipe, the high-pressure inner pipe 33, and the high-pressure connecting pipe 30 in turn, and then enters the high-pressure area of ​​the hydraulic motor 2, drives the hydraulic motor 2 to rotate, and then enters the low-pressure connecting pipe 31, the low-pressure outer pipe 32, and the low-pressure oil pipe through the low-pressure area of ​​the hydraulic motor 2 and then flows back to the hydraulic station.

[0044] In order to realize the transmission of hydraulic oil during the rotation process, a rotary joint is installed on the concentric oil delivery pipe 20. The concentric oil delivery pipe 20 located on the upper side of the rotary joint rotates with the main shaft 13, and the concentric oil delivery pipe 20 located on the lower side of the rotary joint is fixed to the reducer 22. Specifically, the rotary joint includes an inner connecting ring 38 that cooperates with the high-pressure inner tube 33 and an outer connecting ring 37 that cooperates with the low-pressure outer tube 32. The inner connecting ring 38 and the outer connecting ring 37 are both processed with slots that cooperate with the corresponding ends of the high-pressure inner tube 33 and the low-pressure outer tube 32. A ball 40 is installed at the bottom to reduce the friction between the end of the concentric oil pipe 20 and the bottom of the slot. A sealing ring 44 is installed on the side wall of the slot. Through the inner connecting ring 38 and the outer connecting ring 37, the concentric oil pipe 20 located at the lower side of the rotary joint and the concentric oil pipe 20 located at the upper side of the rotary joint can rotate relative to each other, and the hydraulic oil can be transported. In order to provide a larger installation space for the rotary joint, the concentric oil pipe 20 is expanded at the rotary joint, and the oil filling hole 14 is processed on the side wall of the main shaft 13 away from the opening 29.

[0045] A support frame matched with the concentric oil pipeline 20 is installed in the main shaft 13, including an upper support frame 21 distributed on the upper end of the concentric oil pipeline 20, and a lower support frame 36 close to the rotary joint. A positioning ring 34 matched with the upper support frame 21 is processed on the outer wall of the concentric oil pipeline 20. A pressure cap 26 for pressing the upper support frame 21 downward is installed on the upper end of the main shaft 13. Disc springs 27 and pressure sleeves 28 are installed between the pressure cap 26 and the upper support frame 21 from top to bottom, so that the force of the pressure cap 26 is transmitted to the upper support frame 21, and then the concentric oil pipeline 20 is pressed downward through the positioning ring 34, so that the connection between the concentric oil pipeline 20 and the rotary joint is stable. An opening 29 matched with the high-pressure connecting pipe 30 and the low-pressure connecting pipe 31 is processed on the side wall of the pressure sleeve 28 and the main shaft 13. The support frame 36 is supported by the flared part of the concentric oil pipe 20, and the mixing chamber 1 is connected to a support seat 39 that matches the concentric oil pipe 20. The support seat 39 includes a support tube that is mounted outside the concentric oil pipe 20 on the lower side of the rotary joint. The lower end of the support tube extends to the output shaft of the reducer 22 and is connected to a connecting plate 41. The connecting plate 41 is annular and is connected to the outer wall of the reducer 22 through a connecting ring 42, so that a gap is reserved between the connecting plate 41 and the outer wall of the reducer 22 to avoid interfering with the rotation of the output shaft of the reducer 22. The concentric oil pipe 20 is supported by the upper support frame 21, the lower support frame 36 and the support tube, so as to ensure that the concentric oil pipe 20 located on the lower side of the rotary joint is coaxial with the concentric oil pipe 20 located on the upper side of the rotary joint.

[0046] The multifunctional concrete mixing device provided in the present embodiment drives the rotating rod 7 to rotate by the second hydraulic motor, and can control the rotation speed of the rotating rod 7, thereby greatly improving the mixing effect. However, the concentric oil pipe 20 located at the lower side of the rotary joint and the concentric oil pipe 20 located at the upper side of the rotary joint can rotate relative to each other, and the oil delivery stability is poor, which is suitable for mixing with low-speed revolution and requires regular maintenance. Since the high-pressure inner tube 33 is located on the inner side and the low-pressure outer tube 32 is located on the outer side, the high-pressure oil in the high-pressure inner tube 33 is buffered when leaking into the low-pressure outer tube 32, and the return oil pressure of the low-pressure outer tube 32 is detected. When the return oil pressure of the low-pressure outer tube 32 exceeds the preset value, maintenance is performed.

[0047] Example 3

[0048] like Figure 12-14 As shown, a multifunctional concrete mixing device is shown. Different from Example 1, a lever 43 for driving the stirring rod to rotate is installed on the supporting outer cylinder 2, and a driven rod 609 cooperating with the lever 43 is installed on the stirring rod. The stirring rod passes through the lever 43 during the revolution and is driven by the lever 43 to rotate. Specifically, a horizontal lever 43 is fixed on the supporting outer cylinder 2, and the end of the lever 43 extends to the outside of the supporting outer cylinder 2 and is bent into an arc, and the top of the arc deviates from the revolution direction. The vertical rod 703 close to the lever 43 on the rotating rod 7 is extended or bent to form the driven rod 609, which then cooperates with the lever 43. During the revolution, it rotates to the lever 43, and the driven rod 609 is blocked by the lever 43, so that the rotating rod 7 is rotated, thereby improving the mixing effect. The structure is simple, but the rotation angle of the rotating rod 7 driven by the lever 43 is small. Installing 4-6 levers 43 in the circumferential direction of the supporting outer cylinder 2 can improve the mixing effect.

[0049] A force storage device is installed between the support sleeve 6 and the corresponding stirring rod. The force storage device stores force when the lever 43 moves the stirring rod. The force storage device includes a force storage spring installed between the support sleeve 6 and the stirring rod. Specifically, the force storage spring is a spring 605. Multiple springs 605 are installed in the support sleeve 6 to ensure the elastic force. A vertical long inner slot 606 matching the inner end of the spring 605 is processed on the rotating shaft 701, and a vertical long outer slot 607 matching the outer end of the spring 605 is processed on the inner wall of the support sleeve 6. The upper end of the support sleeve 6 has an opening 29 and is equipped with a sealing cover 604 to facilitate the installation and maintenance of the spring 605. The lower end of the support sleeve 6 is sealed and connected to the rotating shaft 701 through a packing 603 to protect the inner cavity of the support sleeve 6.

[0050] During the revolution, the rotating rod 7 rotates to the lever 43, and the driven rod 609 is blocked by the lever 43, thereby causing the rotating rod 7 to rotate, thereby improving the stirring effect. At the same time, the force storage device stores force, and after passing through the lever 43, the mainspring 605 resets and drives the rotating rod 7 to rotate, thereby further improving the stirring effect. The structure is simple.

[0051] During use, it was found that the lever 43 caused uneven force on the rotating rod 7 when the rotating rod 7 was moved, thereby reducing the connection stability between the support sleeve 6 and the rotating rod 7 and shortening the service life. However, in terms of stirring effect, it is better than Example 1.

[0052] Example 4

[0053] like Fig.15 As shown, a multifunctional concrete mixing device is different from Example 3 in that a rotating shaft 701 is connected to a driving ring 608, and the driving ring 608 is connected to a horizontal driven rod 609, the driven rod 609 is close to the cantilever 4 and extends toward the supporting outer cylinder 2, and a vertical lever 43 is installed on the supporting outer cylinder 2. The driven rod 609 passes through the lever 43 during the revolution of the rotating rod 7, and the end is pushed by the lever 43, thereby driving the rotating rod 7 to rotate. In this process, the force storage device stores force, and after passing through the lever 43, the force storage device drives the rotating rod 7 to rotate and reset. Compared with Example 3, the advantage is that the driven rod 609 is installed close to the supporting sleeve 6, and the deflection force on the rotating rod 7 is small. The disadvantage is that the rotation angle of the rotating rod 7 is small, and the driven rod 609 is long and easy to deform.

[0054] Example 5

[0055] like Fig.16 As shown, a multifunctional concrete mixing device is different from Example 4 in that the driving ring 608 selects the driven gear 1, and the cantilever 4 is equipped with a driving gear 1 610. The driving gear 1 610 and the driven gear 1 are transmission-connected, and the number of teeth of the driving gear 1 610 is greater than the number of teeth of the driven gear 1, thereby increasing the rotation angle of the driven gear 1. Since when the number of teeth of the driving gear 1 610 is greater than the number of teeth of the driven gear 1, the outer diameter of the driving gear 1 610 is larger, in this embodiment, the driving gear 1 610 is made in a fan shape, thereby reducing the overall size, and at the same time can ensure that it is meshed with the driven gear 1 during the rotation process, and when the driving gear 1 610 is engaged with the driven gear 1, the outer diameter of the driving gear 1 610 is larger. A process hole 611 is also processed on the wheel 610, thereby reducing the weight while ensuring the strength. The cooperation between the driving gear 610 and the driven gear 1 can increase the rotation angle of the rotating shaft 701, thereby improving the stirring effect. The driving gear 610 is connected to the driven rod 609. Due to the introduction of the driving gear 610, the length of the driven rod 609 is reduced. When the lever 43 cooperates, the rotation angle is increased, and the rotation angle of the rotating shaft 701 is further increased. During the process of the rotating shaft 701 being driven to rotate by the driven rod 609, the force storage device stores force. After passing through the lever 43, the force storage device drives the rotating rod 7 to rotate and reset.

[0056] Compared with Example 4, the rotation angle of the rotating rod 7 is greatly improved, and the stirring effect is good. The disadvantage is that the rotation speed and angle of the rotating rod 7 are generally low, which cannot meet the use requirements for materials that require high-speed stirring.

[0057] Example 6

[0058] like Fig.17 As shown, a multifunctional concrete mixing device is different from Example 1 in that the self-rotation drive device includes a gear ring 612 fixed on the sealing disk 12, the gear ring 612 is coaxial with the main shaft 13, a transmission shaft 614 is installed in the cantilever 4 through a bearing seat 613, a driving gear 2 matched with the gear ring 612 is installed on the transmission shaft 614, and a bevel gear pair 615 is used for transmission between the transmission shaft 614 and the rotating shaft 701. During the revolution of the rotating rod 7, the gear ring 612 drives the rotating shaft 701 to rotate through the driving gear 2, the transmission shaft 614, and the bevel gear pair 615, thereby causing the rotating rod 7 to rotate. The rotating rod 7 can rotate continuously and stably to ensure the mixing effect. However, since the installation space of the gear ring 612 is relatively small, the specifications of the gear ring 612 are small, and accordingly, the rated power is small, so that the multifunctional concrete mixing device is suitable for mixing materials with low viscosity, and a clutch 616 is installed on the transmission shaft 614 to ensure safety. The clutch 616 uses a torque clutch 616.

[0059] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to 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 should be included in the protection scope of the present invention.

Claims

1. A multifunctional concrete mixing device, comprising a mixing chamber, a main shaft is arranged in the mixing chamber, a plurality of cantilevers are arranged on the main shaft, a mixing rod is arranged at the end of the cantilever, and the main shaft is connected to a revolution drive device, characterized in that: The upper end of the stirring bin is open, and an upward supporting outer cylinder is provided at the bottom of the stirring bin. The revolution driving device includes a revolution driving source arranged at the lower end of the supporting outer cylinder, and the output shaft of the revolution driving source is connected to the upward main shaft. The upper end of the supporting outer cylinder is provided with a supporting inner cylinder matched with the main shaft, and a sealing support member 1 is provided between the supporting inner cylinder and the main shaft. The main shaft extends upwardly out of the supporting inner cylinder and is connected with a connecting cover, the cantilever is connected with the connecting cover, the supporting inner cylinder extends upward to the outside of the supporting outer cylinder to form a connecting cylinder, and a sealing support member 2 is provided between the connecting cover and the connecting cylinder. At least one stirring rod is connected with a self-rotation driving device. The sealing support member 1 includes a sealing bearing, a lower support ring, and an upper support ring which are arranged in sequence from bottom to top. The lower support ring and the upper support ring are both matched with the support inner tube through a sealing ring. A lubricating oil chamber is formed between the lower support ring and the upper support ring. The lubricating oil chamber is connected to a lubricating oil replenishing device. The lubricating oil replenishing device includes an oil filling hole arranged in the main shaft. The upper end of the oil filling hole extends to the upper end surface of the main shaft. A separator ring is arranged in the lubricating oil chamber. The lower end of the oil filling hole extends to the upper side of the separator ring.

2. The multifunctional concrete mixing device according to claim 1, characterized in that: The revolution driving source is a hydraulic motor 1, which is connected to the main shaft through a reducer. The main shaft is made of pipe fittings, and the output shaft of the reducer is a hollow shaft. The rotation driving device includes a hydraulic motor 2 arranged at the end of the corresponding cantilever, and the hydraulic motor 2 is connected with a high-pressure oil pipe and a low-pressure oil pipe. The high-pressure oil pipe and the low-pressure oil pipe are connected to the hydraulic station through concentric oil pipes passing through the main shaft and the output shaft of the reducer. The concentric oil pipe includes a low-pressure outer pipe, and a high-pressure inner pipe is installed on the coaxial line inside the low-pressure outer pipe. The high-pressure inner pipe is isolated from the low-pressure outer pipe, and the low-pressure outer pipe is connected to the low-pressure oil pipe, and the high-pressure outer pipe is connected to the high-pressure oil pipe. A rotary joint is arranged on the concentric oil pipe, and the concentric oil pipe located on the upper side of the rotary joint rotates with the main shaft.

3. The multifunctional concrete mixing device according to claim 2, characterized in that: A support frame matched with the concentric oil pipeline is arranged in the main shaft, and a support seat matched with the concentric oil pipeline is connected to the mixing chamber.

4. The multifunctional concrete mixing device according to claim 1, characterized in that: The self-rotation driving device includes a downward supporting sleeve 1 arranged at the end of the corresponding cantilever, the supporting sleeve 1 is rotatably connected to the corresponding stirring rod, the supporting outer cylinder is provided with a lever for driving the stirring rod to rotate, the stirring rod is provided with a driven rod cooperating with the lever, and the stirring rod passes through the lever during the revolution and is driven by the lever to rotate.

5. The multifunctional concrete mixing device according to claim 4, characterized in that: A force storage device is arranged between the support sleeve 1 and the corresponding stirring rod. The force storage device stores force when the lever moves the stirring rod. The force storage device includes a force storage spring arranged between the support sleeve 1 and the stirring rod.

6. The multifunctional concrete mixing device according to claim 5, characterized in that: The stirring rod is connected with a driven gear 1, and the cantilever is provided with a driving gear 1. The driving gear 1 and the driven gear 1 are transmission-connected, and the driving gear 1 is connected with the driven rod. The driven rod is arranged horizontally, and the shifting rod is arranged vertically.

7. The multifunctional concrete mixing device according to claim 1, characterized in that: The second sealing support member includes a sealing disk arranged on the connecting cylinder, the self-rotation driving device includes a gear ring arranged on the sealing disk, a transmission shaft is arranged in the cantilever, and a second driving gear matching with the gear ring is arranged on the transmission shaft. The transmission shaft and the stirring rod are driven by a bevel gear pair.

8. The multifunctional concrete mixing device according to claim 1, characterized in that: The mixing bin is cylindrical, and the lengths of the multiple cantilevers are different.

Images