Stirring device

Abstract

The stirring device comprises a shell, a driving part, stirring blades and a stirring shaft, the stirring shaft comprises an upper stirring section connected with an output shaft of the driving part and a lower stirring section rotationally installed in the shell through a bearing seat, and a replacement interval is formed between the upper stirring section and the lower stirring section; an assembling structure is arranged between the lower stirring section and the stirring blade, a lifting assembly is arranged on the lower stirring section, a working position is formed at the position, close to the lower end, of the lower stirring section, a locking assembly is arranged at the position, corresponding to the working position, of the lower stirring section, and the locking assembly has a locking state for limiting the stirring blade to move along the axis of the lower stirring section and a non-locking state; a control component for controlling the locking component is arranged on the lower stirring section, and a detachable linkage component for forming steering linkage of the upper stirring section and the lower stirring section is connected between the upper stirring section and the lower stirring section. The stirring paddle has the following advantages and effects that the stirring paddle can be conveniently replaced, so that the maintenance cost is reduced, and the maintenance workload is reduced.

Description

Technical Field

[0001] The present invention relates to a stirring device, and particularly to a stirring device. Background Art

[0002] A stirring device is a device that makes materials mix, disperse, dissolve or react through mechanical movement, and is widely used in multiple fields such as chemical industry, pharmacy, food, environmental protection, building materials, etc. Its core function is to forcibly mix liquids, solids or gases through the rotation or reciprocating movement of a stirrer (such as a paddle, a turbine, a propeller, etc.) to meet the process requirements.

[0003] The existing stirring device generally consists of a housing, a driving member installed on the housing, a stirring shaft connected to the output shaft of the driving member, and a stirring paddle installed on the stirring shaft. When the stirring paddle is damaged and needs to be replaced during operation, according to the structural design of the existing stirring device, the driving member has to be removed first, and then the driving member together with the stirring shaft and the stirring paddle are taken out of the housing for the disassembly and replacement operation of the stirring paddle. However, since the driving member is heavy and installed at a high position, handling equipment must be used during disassembly and assembly, which makes the operation process extremely cumbersome and the difficulty greatly increased.

[0004] Another method is to discharge the materials to vacate the internal space of the housing, allowing workers to enter the housing to perform the disassembly and replacement operation of the stirring paddle. But discharging the unprocessed materials requires storing them temporarily in other tanks and then pumping them back for continued processing after the maintenance is completed. This method not only has a cumbersome operation process but also occupies a large amount of factory building resources.

[0005] In summary, there are many problems in the replacement and maintenance of the stirring paddle of the existing stirring device, significantly increasing the cost and workload of replacement and maintenance. In view of this, the present invention comes into being. Summary of the Invention

[0006] The object of the present invention is to provide a stirring device that can achieve convenient replacement of the stirring paddle, thereby reducing the maintenance cost and the maintenance workload.

[0007] The above technical object of the present invention is achieved by the following technical solutions: A stirring device includes a housing, a driving member fixedly installed on the housing, a stirring paddle, and a stirring shaft located inside the housing. The stirring shaft includes an upper stirring section connected to the output shaft of the driving member and a lower stirring section rotatably installed inside the housing through a bearing seat. A replacement interval is formed between the upper stirring section and the lower stirring section above the liquid level of the material and for the stirring paddle to pass through. An assembly structure is provided between the lower stirring section and the stirring paddle to form circumferential linkage and axial sliding between the two. An elevating assembly is provided on the lower stirring section to drive the stirring paddle to move along the axis of the lower stirring section. A working position for the stirring paddle to rotate and work is formed near the lower end of the lower stirring section. A locking assembly is provided on the lower stirring section corresponding to the working position. The locking assembly has a locking state and a non-locking state that restrict the stirring paddle from moving along the axis of the lower stirring section. A control member for controlling the locking assembly is provided on the lower stirring section. A detachable linkage assembly is connected between the upper stirring section and the lower stirring section to form steering linkage between the two.

[0008] By adopting the above technical solutions, when the stirring paddle is damaged during operation and needs to be replaced, the detachable linkage assembly located above the liquid level of the material is disassembled to vacate the replacement interval. Then, the control member is used to control the locking assembly to switch from the locking state to the non-locking state. Then, in cooperation with the provided elevating assembly, the stirring paddle is controlled to rise above the liquid level of the material, and then separated from the stirring shaft through the replacement interval. After installing the new stirring paddle at the working position of the lower stirring section through the above steps, the detachable linkage assembly is reinstalled to form the linkage between the upper stirring section and the lower stirring section, so that the installed stirring paddle can perform the mixing operation of the material. Through this set structure, the replacement of the stirring paddle does not require disassembling the driving member or discharging the material to vacate the internal space of the housing, thereby realizing the convenient replacement of the stirring paddle, reducing the maintenance cost and the workload of maintenance.

[0009] It is further set as: The assembly structure includes an assembly block provided on the lower stirring section and located between the lower stirring section and the stirring paddle, and an assembly groove formed at the position of the stirring paddle corresponding to the assembly block for the assembly block to be embedded.

[0010] By adopting the above technical solutions, the assembly block and the assembly groove structure enable the stirring paddle to slide along the axis of the lower stirring section and let the lower stirring section drive the stirring paddle to rotate circumferentially.

[0011] It is further set that: a chute extending along its axis is provided on the outer peripheral wall of the lower stirring section, the fitting block is slidably arranged in the chute, the lifting assembly includes a lifting rope with one end passing through the lower stirring section and fixedly connected to the fitting block, a limiting block fixedly arranged at the end of the lifting rope opposite to the fitting block for restricting the falling of the lifting rope, and a supporting block fixedly arranged on the fitting block and abutted against the lower part of the stirring blade. When the lifting rope is in a taut state, the position of the stirring blade exactly corresponds to the working position.

[0012] By adopting the above technical solution, the stirring blade abuts against the upper part of the supporting block, and under the action of gravity, the stirring blade can slide downward together with the fitting block to the working position. When it is necessary to replace the stirring blade, pull the lifting rope, and the stirring blade can be driven to rise via the fitting block, and then separated from the lower stirring section and the fitting block to perform the replacement operation of the stirring blade, so as to realize the lifting and replacement functions of the stirring blade.

[0013] It is further set that: the lifting rope is located in the chute, and both the fitting structure and the lifting assembly are symmetrically arranged in two groups along the axis of the lower stirring section.

[0014] By adopting the above technical solution, the probability of the lifting rope being entangled with the material is reduced, the implementation reliability of the set structure is ensured, and the stable lifting operation of the stirring blade is realized by setting it in two groups, ensuring the smoothness of the operation.

[0015] It is further set that: the locking assembly includes a plurality of locking pins that are hermetically and slidably arranged along the radial direction of the lower stirring section around the center of the lower stirring section, and a plurality of locking grooves arranged on the stirring blade corresponding to each locking pin for the locking pins to insert.

[0016] By adopting the above technical solution, the locking pins are inserted into the locking grooves to form the locking function of the stirring blade along the axis of the lower stirring section, and the locking pins leave the locking grooves to realize the unlocking function.

[0017] It is further set that: the control member includes a sliding cavity formed inside the lower stirring section and extending along the axis of the lower stirring section and communicating with each locking pin, a control block that is hermetically and slidably arranged along the axis of the lower stirring section in the sliding cavity, a control linkage assembly that constitutes the linkage between the control block and each locking pin, and a control assembly for controlling the sliding of the control block. A positioning ring for restricting the movement of the control block is arranged in the sliding cavity corresponding to the working position, and the positioning ring is located on one side of the control block.

[0018] By adopting the above technical solution, the control component controls the control block to reciprocate sliding towards the locking pin side. When the control block approaches the locking pin, the set control linkage component is used to form a linkage with the locking pin to control whether the locking pin is inserted into the locking groove. And the position of the control block is limited by the set positioning ring to ensure the implementation reliability of the set structure.

[0019] It is further set that: the control block divides the sliding cavity into a sealed driving cavity above the control block and an air cavity below the control block. The control component includes a switching part installed on the outer wall of the lower stirring section and communicating with the sealed driving cavity, and an air duct communicating the air cavity with the outside. One end of the air duct communicating with the outside is above the liquid level of the material.

[0020] By adopting the above technical solution, the switching part is used to inject or discharge gas into the sealed driving cavity. The pressure generated by the gas is used to drive the control block to reciprocate in the sliding cavity to achieve the control purpose.

[0021] It is further set that: the control linkage component includes a linkage inclined surface arranged on the side of the control block facing the locking pin, a matching inclined surface formed at one end of each locking pin facing the sliding cavity and matching the linkage inclined surface, and a return spring connecting each locking pin. When the side of the control block facing the locking pin abuts against the positioning ring, the linkage inclined surface abuts against the matching inclined surface to drive the locking pin to be inserted into the locking groove, and the linkage inclined surface is arranged in a circular ring shape around the center of the lower stirring section.

[0022] By adopting the above technical solution, the control block moves towards the side of the locking pin, and the direction of the force is changed by the way that the linkage inclined surface abuts against the matching inclined surface, and then the return spring is cooperated to drive the locking pin to reciprocate.

[0023] It is further set that: the detachable linkage component includes an upper linkage groove arranged at one end of the upper stirring section facing the replacement interval, a linkage shaft installed in the upper linkage groove, and a lower linkage groove arranged at one end of the lower stirring section facing the replacement interval. The linkage shaft forms a steering linkage and an axial sliding with the upper linkage groove, and the linkage shaft is inserted into the lower linkage groove to form a steering linkage. When the linkage shaft is inserted into the lower linkage groove, the linkage shaft is synchronously located in both the lower linkage groove and the upper linkage groove.

[0024] By adopting the above technical solution, when the linkage shaft is inserted into the lower linkage groove, a steering linkage is formed between the upper stirring section and the lower stirring section, so that the upper stirring section can drive the lower stirring section to rotate. When the linkage shaft leaves the lower linkage groove, the replacement interval can be vacated for the mixing paddle to pass through.

[0025] It is further set that: a magnetic block for magnetically attracting the linkage shaft is arranged at the bottom of the upper linkage groove, and a separation insertion rod for separating the linkage shaft from the magnetic block is slidably arranged on the upper stirring section.

[0026] By adopting the above technical solution, when the linkage shaft moves upward and leaves the lower linkage groove, the linkage shaft is adsorbed by the magnet block so that it will not fall off, which facilitates the subsequent replacement operation of the stirring blade. And the separation plug rod is inserted between the magnet block and the linkage shaft to separate the two, so that the linkage shaft can fall and be inserted into the lower linkage groove, and the linkage shaft inserted into the lower linkage groove will not be adsorbed by the magnet block, thus making the operation more convenient.

[0027] In summary, the present invention has the following beneficial effects: The present invention can realize the convenient replacement of the stirring blade, thereby reducing the maintenance cost and the maintenance workload. Description of the Drawings

[0028] Figure 1 It is a schematic structural diagram of the embodiment; Figure 2 is Figure 1 The enlarged view of part A in Figure 3 is Figure 1 The enlarged view of part B in Figure 4 It is a schematic partial structure diagram of the embodiment; Figure 5 It is another schematic partial structure diagram of the embodiment; Figure 6 is Figure 5 The enlarged view of part C in

[0029] In the figure: 1, housing; 2, driving member; 3, stirring blade; 41, upper stirring section; 42, lower stirring section; 5, bearing seat; 6, replacement interval; 7, assembly structure; 71, assembly block; 72, assembly groove; 8, lifting assembly; 81, lifting rope; 82, limiting block; 83, supporting block; 9, locking assembly; 91, locking pin; 92, locking groove; 10, control member; 101, control block; 102, sealed driving cavity; 103, air cavity; 104, on-off member; 105, air passage; 106, linkage inclined surface; 107, mating inclined surface; 108, return spring; 11, detachable linkage assembly; 111, upper linkage groove; 112, linkage shaft; 113, lower linkage groove; 12, sliding groove; 13, positioning ring; 14, magnet block; 15, separation plug rod; 16, limiting ring. Detailed Description of the Invention

[0030] The present invention will be further described in detail below with reference to the accompanying drawings.

[0031] Refer to Figures 1 to 6, a stirring device, comprising a housing 1, a driving member 2 fixedly installed on the housing 1, a stirring paddle 3, and a stirring shaft located inside the housing 1. The driving member 2 is a motor fixedly installed on the housing 1. The stirring shaft includes an upper stirring section 41 fixedly connected to the output shaft of the driving member 2 and a lower stirring section 42 rotatably installed inside the housing 1 through a bearing seat 5. The bearing seat 5 is fixedly installed on the inner wall of the housing 1, and the lower stirring section 42 is fixedly connected to the inner ring of the bearing. A replacement interval 6 is formed between the upper stirring section 41 and the lower stirring section 42, which is located above the liquid level of the material and allows the stirring paddle 3 to pass through. An assembly structure 7 is provided between the lower stirring section 42 and the stirring paddle 3 to form a circumferential linkage and axial sliding between the two. An elevating assembly 8 is provided on the lower stirring section 42 to drive the stirring paddle 3 to move along the axis of the lower stirring section 42. A working position for the stirring paddle 3 to rotate and work is formed at a position near the lower end of the lower stirring section 42. A locking assembly 9 is provided in the lower stirring section 42 corresponding to the working position. The locking assembly 9 has a locking state and a non-locking state that restrict the movement of the stirring paddle 3 along the axis of the lower stirring section 42. A control member 10 for controlling the locking assembly 9 is provided on the lower stirring section 42. A detachable linkage assembly 11 that forms a steering linkage between the upper stirring section 41 and the lower stirring section 42 is connected between the two.

[0032] The stirring paddle 3 is sleeved on the lower stirring section 42. The assembly structure 7 includes an assembly block 71 provided on the lower stirring section 42 and located between the lower stirring section 42 and the stirring paddle 3, and an assembly groove 72 formed in the inner ring of the stirring paddle 3 corresponding to the position of the assembly block 71 for the assembly block 71 to be inserted into. A sliding groove 12 extending along the axis of the lower stirring section 42 is formed on the outer peripheral wall of the lower stirring section 42, and the assembly block 71 is slidably arranged in the sliding groove 12.

[0033] The elevating assembly 8 includes a lifting rope 81 with one end passing through the lower stirring section 42 and fixedly connected to the assembly block 71, a limiting block 82 fixedly arranged at the end of the lifting rope 81 opposite to the assembly block 71 for restricting the downward fall of the lifting rope 81, and a supporting block 83 integrally arranged on the assembly block 71 and abutting against the lower part of the stirring paddle 3. When the lifting rope 81 is in a taut state, the position of the stirring paddle 3 corresponds exactly to the working position, and a limiting ring 16 is integrally arranged on the outer peripheral wall of the lower stirring section 42 and abuts against the lower part of the stirring paddle 3. The lifting rope 81 passes through the lower stirring section 42 and is in sliding fit with it. The lifting rope 81 is located in the sliding groove 12. Both the assembly structure 7 and the elevating assembly 8 are symmetrically arranged in two groups along the axis of the lower stirring section 42, and the lifting rope 81 is a steel wire rope.

[0034] The locking assembly 9 includes a plurality of locking pins 91 slidably arranged in a sealing manner in the radial direction of the lower stirring section 42 around the center of the lower stirring section 42, and a plurality of locking grooves 92 formed in the inner ring of the stirring paddle 3 corresponding to each locking pin 91 for the locking pins 91 to be inserted into.

[0035] The control member 10 includes a sliding cavity formed inside the lower stirring section 42 and extending along the axis of the lower stirring section 42 and communicating with each locking pin 91, a control block 101 slidably arranged in the sliding cavity along the axis of the lower stirring section 42 in a sealed manner, a control linkage assembly constituting the linkage between the control block 101 and each locking pin 91, and a control assembly for controlling the sliding of the control block 101. A positioning ring 13 for restricting the downward movement of the control block 101 is integrally arranged in the sliding cavity corresponding to the working position, and the positioning ring 13 is located below the control block 101.

[0036] The control block 101 divides the sliding cavity into a sealed driving cavity 102 located above the control block 101 and an air cavity 103 located below the control block 101, and the positioning ring 13 is located in the air cavity 103. The control assembly includes a switching member 104 fixedly installed on the outer wall of the lower stirring section 42 and communicating with the sealed driving cavity 102, and an air passage 105 opened in the lower stirring section 42 and communicating the air cavity 103 with the outside. One end of the air passage 105 communicating with the outside is located above the liquid level of the material, and the switching member 104 is a valve nozzle.

[0037] The control linkage assembly includes a linkage inclined surface 106 opened on the side of the control block 101 facing the locking pin 91, a mating inclined surface 107 opened at one end of each locking pin 91 facing the sliding cavity and mating with the linkage inclined surface 106, and a return spring 108 connecting each locking pin 91. When the side of the control block 101 facing the locking pin 91 abuts against the positioning ring 13, the linkage inclined surface 106 abuts against the mating inclined surface 107 for driving the locking pin 91 to insert into the locking groove 92, and the linkage inclined surface 106 is arranged in a circular ring shape surrounding the center of the lower stirring section 42. The two ends of the return spring 108 are respectively fixedly connected to the lower stirring section 42 and the locking pin 91.

[0038] The detachable linkage assembly 11 includes an upper linkage groove 111 opened at one end of the upper stirring section 41 facing the replacement interval 6, a linkage shaft 112 installed in the upper linkage groove 111, and a lower linkage groove 113 opened at one end of the lower stirring section 42 facing the replacement interval 6. The linkage shaft 112 and the upper linkage groove 111 form a steering linkage and an axial sliding, and the linkage shaft 112 inserted into the lower linkage groove 113 forms a steering linkage; when the linkage shaft 112 is inserted into the lower linkage groove 113, the linkage shaft 112 is synchronously located in both the lower linkage groove 113 and the upper linkage groove 111.

[0039] The linkage shaft 112 is hexagonal prism-shaped, and the upper linkage groove 111 and the lower linkage groove 113 are hexagonal grooves adapted to the shape of the linkage shaft 112. A magnetic block 14 for magnetically attracting the linkage shaft 112 is fixedly provided at the bottom of the upper linkage groove 111, and the linkage shaft 112 is made of carbon steel or iron; a separating plug 15 for separating the linkage shaft 112 from the magnetic block 14 is slidably arranged on the upper stirring section 41, and a spring is sleeved on the separating plug 15, and the two ends of the spring are respectively fixedly connected to the upper stirring section 41 and the separating plug 15.

[0040] This specific embodiment is only an interpretation of the present invention and does not limit the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A stirring device, comprising a housing (1), a driving member (2) fixedly installed on the housing (1), stirring blades (3), and a stirring shaft located inside the housing (1), characterized in that: The stirring shaft includes an upper stirring section (41) connected to the output shaft of the driving member (2) and a lower stirring section (42) rotatably mounted inside the housing (1) through a bearing seat (5). A replacement interval (6) is formed between the upper stirring section (41) and the lower stirring section (42) above the liquid level of the material and for the stirring paddle (3) to pass through. An assembly structure (7) is provided between the lower stirring section (42) and the stirring paddle (3) to form a circumferential linkage and axial sliding between the two. An elevating assembly (8) is provided on the lower stirring section (42) to drive the stirring paddle (3) to move along the axis of the lower stirring section (42). A working position for the stirring paddle (3) to rotate and work is formed at a position near the lower end of the lower stirring section (42). A locking assembly (9) is provided on the lower stirring section (42) corresponding to the working position. The locking assembly (9) has a locking state and a non-locking state that restricts the movement of the stirring paddle (3) along the axis of the lower stirring section (42). A control member (10) is provided on the lower stirring section (42) to control the locking assembly (9). A detachable linkage assembly (11) is connected between the upper stirring section (41) and the lower stirring section (42) to form a steering linkage between the two.

2. The stirring device according to claim 1, characterized in that: The assembly structure (7) includes an assembly block (71) provided on the lower stirring section (42) and located between the lower stirring section (42) and the stirring paddle (3), and an assembly groove (72) formed at a position on the stirring paddle (3) corresponding to the assembly block (71) for the assembly block (71) to be inserted into.

3. The stirring device according to claim 2, characterized in that: A chute (12) extending along its axis is provided on the outer peripheral wall of the lower stirring section (42). The assembly block (71) is slidably arranged in the chute (12). The elevating assembly (8) includes a lifting rope (81) with one end passing through the lower stirring section (42) and fixedly connected to the assembly block (71), a limiting block (82) fixedly provided at the end of the lifting rope (81) opposite to the assembly block (71) for restricting the falling of the lifting rope (81), and a supporting block (83) fixed to the assembly block (71) and abutted against the lower part of the stirring paddle (3). When the lifting rope (81) is in a taut state, the position of the stirring paddle (3) corresponds exactly to the working position.

4. The stirring device according to claim 3, characterized in that: The lifting rope (81) is located in the chute (12). The assembly structure (7) and the elevating assembly (8) are both symmetrically arranged in two groups along the axis of the lower stirring section (42).

5. The stirring device according to claim 1, characterized in that: The locking assembly (9) includes a plurality of locking pins (91) hermetically and slidably arranged radially along the lower stirring section (42) and distributed around the center of the lower stirring section (42) in a circumferential manner, and a plurality of locking grooves (92) provided on the stirring paddle (3) corresponding to each locking pin (91) for the locking pins (91) to be inserted into.

6. The stirring device according to claim 5, wherein: The control member (10) includes a sliding cavity formed inside the lower stirring section (42), extending along the axis of the lower stirring section (42) and communicating with each locking pin (91), a control block (101) slidably and sealingly arranged in the sliding cavity along the axis of the lower stirring section (42), a control linkage assembly for linking the control block (101) with each locking pin (91), and a control assembly for controlling the sliding of the control block (101). A positioning ring (13) for restricting the movement of the control block (101) is provided in the sliding cavity corresponding to the working position, and the positioning ring (13) is located on one side of the control block (101).

7. The stirring device according to claim 6, wherein: The control block (101) divides the sliding cavity into a sealed driving cavity (102) above the control block (101) and an air cavity (103) below the control block (101). The control assembly includes a switching member (104) installed on the outer wall of the lower stirring section (42) and communicating with the sealed driving cavity (102), and an air passage (105) communicating the air cavity (103) with the outside. One end of the air passage (105) communicating with the outside is located above the liquid level of the material.

8. The stirring device according to claim 6, wherein: The control linkage assembly includes a linkage inclined surface (106) provided on the side of the control block (101) facing the locking pin (91), a mating inclined surface (107) formed at one end of each locking pin (91) facing the sliding cavity and mating with the linkage inclined surface (106), and a return spring (108) connecting each locking pin (91). When the side of the control block (101) facing the locking pin (91) abuts against the positioning ring (13), the linkage inclined surface (106) abuts against the mating inclined surface (107) to drive the locking pin (91) to insert into the locking groove (92), and the linkage inclined surface (106) is arranged in a circular ring surrounding the center of the lower stirring section (42).

9. The stirring device according to claim 6, wherein: The detachable linkage assembly (11) includes an upper linkage groove (111) provided at one end of the upper stirring section (41) facing the replacement interval (6), a linkage shaft (112) installed in the upper linkage groove (111), and a lower linkage groove (113) provided at one end of the lower stirring section (42) facing the replacement interval (6). The linkage shaft (112) forms a steering linkage and an axial sliding with the upper linkage groove (111), and the linkage shaft (112) inserted into the lower linkage groove (113) forms a steering linkage. When the linkage shaft (112) is inserted into the lower linkage groove (113), the linkage shaft (112) is synchronously located in both the lower linkage groove (113) and the upper linkage groove (111).

10. The stirring device according to claim 9, wherein: A magnetic block (14) for magnetically attracting the linkage shaft (112) is provided at the bottom of the upper linkage groove (111), and a separating plug rod (15) for separating the linkage shaft (112) from the magnetic block (14) is slidably arranged on the upper stirring section (41).

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