Horizontal double-shaft stirrer

Abstract

The utility model discloses a horizontal double-shaft stirrer, which relates to the field of constructional engineering equipment and comprises a stirring chamber, a motor, a linkage device, a stirring mechanism, a spraying device and a PLC (programmable logic controller), the linkage device is arranged on the outer wall of the stirring chamber, the two ends of the two stirring mechanisms penetrate through the side wall of the stirring chamber and then are in positioning connection with the linkage device, the end of a stirring shaft of one stirring mechanism is connected with the output end of the motor, and the motor and the PLC are fixedly arranged on the supporting plate; the spraying device is arranged at the top end of the stirring chamber and is communicated with an external water supply device. The stirring device is convenient to disassemble, the stirring efficiency is changed by adjusting the arrangement of the stirring blades and the gaskets, and different stirring requirements are met; push plates and scrapers are arranged on the stirring blades, so that the whole body does not need to be replaced when damaged, and the cost is saved; the linkage device is arranged to ensure that the stirring mechanism rotates at the same speed, and the spraying device is arranged to improve the stirring efficiency and facilitate cleaning.

Description

Technical Field

[0001] The utility model relates to the field of construction engineering equipment, in particular to a horizontal double-shaft mixer. Background Art

[0002] At present, in construction engineering, mixers are indispensable important instruments. When the existing mixers are mixing, there is a large amount of dust, polluting the air. At the same time, the degree of automation is low. Feeding and water injection are mostly carried out manually, making it difficult to control the water consumption, and adding a large amount of water at one time affects the mixing efficiency. There is no self-cleaning function, and it is usually cleaned manually, which is time-consuming and laborious, with low efficiency and poor cleaning effect.

[0003] Therefore, how to provide a horizontal double-shaft mixer with a spraying device, a relatively high degree of automation, which can effectively reduce dust, protect the health of workers, can evenly inject water to improve the mixing efficiency, and can also perform self-cleaning has become an urgent problem for those skilled in the art. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a horizontal double-shaft mixer to solve the problems of low degree of automation and no self-cleaning function of the existing device.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A horizontal double-shaft mixer of the utility model includes a mixing chamber, a motor, a linkage device, a mixing mechanism, a spraying device and a PLC controller. The two mixing mechanisms are arranged side by side and installed in the mixing chamber. The linkage device is arranged on the outer wall of the mixing chamber. Both ends of the two mixing mechanisms pass through the side wall of the mixing chamber and are fixedly connected with the linkage device. The end of the mixing shaft of one of the mixing mechanisms passes through the linkage device and is connected with the output end of the motor. The motor and the PLC controller are both fixedly arranged on a support plate. The spraying device is arranged at the top of the mixing chamber. The spraying device is communicated with an external water supply device. The motor, the mixing mechanism and the spraying device are all electrically connected with the PLC controller.

[0007] Preferably, the mixing chamber includes an upper part, a lower part, struts, a feed inlet, a baffle plate, and a hydraulic cylinder; a feed inlet is provided in the middle of the upper part, a circular groove is provided at the lower end of the feed inlet, a baffle plate is provided at the discharge port of the lower part, one end of the baffle plate is rotatably connected to the lower part, the non-working end of the hydraulic cylinder is hinged to the middle strut, the working end of the hydraulic cylinder is hinged to the other end of the baffle plate, the bottom end of the upper part is inserted into the top inside of the lower part, flange edges are provided around the lower part and the upper part, and the lower part and the upper part are connected together by bolt assemblies through the flange edges. Both ends of the mixing shaft in the mixing mechanism are located at the connection between the lower part and the upper part, and the six struts are provided at the bottom of the lower part and the support plate.

[0008] Preferably, a support plate is connected to the outside of the mixing chamber, and the motor and the PLC controller are fixed on the support plate.

[0009] Preferably, the mixing mechanism includes a main mixing shaft, a driven mixing shaft, mixing blades, and washers; the mixing shaft of one mixing mechanism is set as the main mixing shaft, both ends of the main mixing shaft pass through the mixing chamber and are key-connected to the driving wheel in the linkage device, and the front end of the main mixing shaft passes through the linkage device and is connected to the working end of the motor; the mixing shaft of the other mixing mechanism is set as the driven mixing shaft, both ends of the driven mixing shaft pass through the mixing chamber and are key-connected to the driven wheel in the linkage device; a plurality of the mixing blades and the washers are key-connected to the outside of the main mixing shaft and the driven mixing shaft.

[0010] Preferably, a push plate and a scraper are detachably arranged on the mixing blade, the push plate is obliquely arranged on the side surface of the mixing blade, and the scraper is arranged at the top end of the mixing blade.

[0011] Preferably, the linkage device includes a driving wheel, a first transmission wheel, a second transmission wheel, a driven wheel, and a housing; the driving wheel, the first transmission wheel, the second transmission wheel, and the driven wheel are all arranged inside the housing, the driving wheel is key-connected to the main mixing shaft, the driven wheel is key-connected to the driven mixing shaft, the driving wheel and the driven wheel are linked through the first transmission wheel and the second transmission wheel, and the housing is fixed to the outside of the mixing chamber by bolts.

[0012] Preferably, the spraying device includes a water inlet pipe, an annular pipe, a flow monitor and spray nozzles; the input end of the water inlet pipe is communicated with an external water supply device, the output end of the water inlet pipe is communicated with the annular pipe, the flow monitor is arranged at the connection of the water inlet pipe and the annular pipe, the annular pipe is arranged in the annular groove of the feeding port, a plurality of the spray nozzles are arranged at the lower end of the annular pipe, and both the flow monitor and the spray nozzles are electrically connected to the PLC controller.

[0013] Preferably, it further includes a heating device, the heating device is arranged on both sides of the lower part, a heat insulation layer is arranged on the outside of the heating device, and the heating device is electrically connected to the PLC controller.

[0014] Preferably, it further includes a dust cover, the dust cover is adapted to the size of the feeding port, and the dust cover is covered and connected to the feeding port.

[0015] Compared with the prior art, the beneficial technical effects of the present utility model are as follows:

[0016] A horizontal double-shaft mixer of the present utility model includes a mixing chamber, a motor, a linkage device, a mixing mechanism, a spraying device, a PLC controller, a heating device and a dust cover; the mixing chamber includes an upper part, a lower part, a support column, a feeding port, a baffle plate and a hydraulic cylinder; the mixing mechanism includes a main mixing shaft, a driven mixing shaft, mixing blades and gaskets, and a pushing plate and a scraping plate are detachably arranged on the mixing blades; the linkage device includes a driving wheel, a first transmission wheel, a second transmission wheel, a driven wheel and a housing; the spraying device includes a water inlet pipe, an annular pipe, a flow monitor and spray nozzles.

[0017] 1) The upper part and the lower part of the mixing chamber are connected by plugging and bolting, which not only ensures the structural strength and sealing effect, but also is easy to disassemble and repair.

[0018] 2) Mixing blades and gaskets are arranged on the outer side of the mixing shaft. By adjusting the arrangement mode of the mixing blades and the gaskets, the mixing efficiency can be changed to meet different mixing requirements; the mixing mechanism adopts a double-horizontal-shaft mixing method, which saves mixing time and improves mixing efficiency.

[0019] 3) A detachable pushing plate and a scraping plate are arranged on the mixing blades. When a part is damaged, it is not necessary to replace the whole mixing blade, which saves costs.

[0020] 4) A linkage device is arranged. The arrangement of the linkage device can ensure that the two rotating shafts rotate at the same speed, avoid collision, and the linkage device has a simple structure and low cost.

[0021] 5) A spraying device is arranged. During operation, water can be added to the mixing chamber in the form of a water curtain, effectively reducing dust and at the same time improving the mixing rate; during cleaning, the internal structure can be cleaned through a high-pressure water curtain.

[0022] 6) A heating device is provided to prevent the reduction of concrete strength caused by too low temperature.

[0023] The utility model is provided with a detachable mixing chamber for easy maintenance, and blades and washers that can be freely arranged to adapt to different specifications of concrete. The mixing blades are provided with detachable push plates and scraping plates. When a part is damaged, it is not necessary to replace the whole mixing blade, which saves costs. A linkage device is provided to ensure that the two rotating shafts rotate at the same speed. A spraying device is provided, which can not only improve the mixing rate but also clean the internal structure. Description of the Drawings

[0024] The following further describes the present utility model in conjunction with the drawings.

[0025] Figure 1 It is a schematic diagram of the horizontal double-shaft mixer of the present utility model;

[0026] Figure 2 It is a schematic diagram of the internal structure of the horizontal double-shaft mixer of the present utility model Figure 1 ;

[0027] Figure 3 It is a schematic diagram of the internal structure of the horizontal double-shaft mixer of the present utility model Figure 2 ;

[0028] Figure 4 It is a schematic diagram of the mixing blade of the present utility model;

[0029] Figure 5 It is a schematic diagram of the linkage device of the present utility model;

[0030] Figure 6 It is a schematic diagram of the spraying device of the present utility model;

[0031] Figure 7 It is a schematic diagram of the dust cover of the present utility model.

[0032] Description of the reference numerals: 1, mixing chamber; 2, motor; 3, linkage device; 4, mixing mechanism; 5, spraying device; 6, PLC controller; 7, support plate; 8, heating device; 9, dust cover;

[0033] 101, upper part; 102, lower part; 103, support column; 104, feeding port; 105, baffle; 106, hydraulic cylinder;

[0034] 401, driving mixing shaft; 402, driven mixing shaft; 403, mixing blade; 404, washer; 4031, push plate; 4032, scraping plate;

[0035] 301, Driving wheel; 302, First transmission wheel; 303, Second transmission wheel; 304, Driven wheel; 305, Outer shell;

[0036] 501, Water inlet pipe; 502, Annular pipe; 503, Flow monitor; 504, Sprinkler head. Specific implementation manner

[0037] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0038] As Figures 1-7 shown, it includes a mixing chamber 1, a motor 2, a linkage device 3, a mixing mechanism 4, a spraying device 5 and a PLC controller 6; the two mixing mechanisms 4 are arranged side by side and installed in the mixing chamber 1, the linkage device 3 is arranged on the outer wall of the mixing chamber 1, both ends of the two mixing mechanisms 4 pass through the side wall of the mixing chamber 1 and are fixedly connected to the linkage device 3, and the end of the mixing shaft of one of the mixing mechanisms 4 passes through the linkage device 3 and is connected to the output end of the motor 2, the motor 2 and the PLC controller 6 are both fixedly arranged on a support plate 7; the spraying device 5 is arranged at the top of the mixing chamber 1, the spraying device 5 is communicated with an external water supply device, and the motor 2, the mixing mechanism 4 and the spraying device 5 are all electrically connected to the PLC controller 6.

[0039] Specifically, as Figure 2As shown in the figure, the mixing chamber 1 includes an upper part 101, a lower part 102, a support column 103, a feeding port 104, a baffle plate 105 and a hydraulic cylinder 106; a feeding port 104 is arranged in the middle of the upper part 101, and an annular groove is arranged at the lower end of the feeding port 104; a baffle plate 105 is arranged at the discharge port of the lower part 102, and one end of the baffle plate 105 is rotatably connected to the lower part 102; the non-working end of the hydraulic cylinder 106 is hinged to the middle support column 103, and the working end of the hydraulic cylinder 106 is hinged to the other end of the baffle plate 105; the bottom end of the upper part 101 is inserted into the top inside of the lower part 102; flange edges are arranged around the lower part 102 and the upper part 101, and the lower part 102 and the upper part 101 are connected together by bolt assemblies through the flange edges; both ends of the stirring shaft in the stirring mechanism 4 are located at the connection of the lower part 102 and the upper part 101; six support columns 103 are arranged at the bottom of the lower part 102 and the support plate 7; materials are put in from the feeding port 104 and carried out inside the mixing chamber 1, and the hydraulic cylinder 106 contracts to control the baffle plate 105 to open for discharging; the upper part 101 and the lower part 102 are connected by insertion and bolts, which not only ensures the structural strength but also is easy to disassemble and repair.

[0040] Specifically, a support plate 7 is connected to the outside of the mixing chamber 1, and a motor 2 and a PLC controller 6 are fixed on the support plate 7; the working states of the motor 2, the spraying device 5 and the heating device 8 can be controlled through the PLC controller 6.

[0041] Specifically, as Figures 2-3 shown in the figure, the stirring mechanism 4 includes a driving stirring shaft 401, a driven stirring shaft 402, stirring blades 403 and washers 404; the stirring shaft of one stirring mechanism 4 is set as the driving stirring shaft 401, and both ends of the driving stirring shaft 401 pass through the mixing chamber 1 and are key-connected to the driving wheel 301 in the linkage device 3, and the front end of the driving stirring shaft 401 passes through the linkage device 3 and is connected to the working end of the motor 2; the stirring shaft of the other stirring mechanism 4 is set as the driven stirring shaft 402, and both ends of the driven stirring shaft 402 pass through the mixing chamber 1 and are key-connected to the driven wheel 304 in the linkage device 3; a plurality of stirring blades 403 and washers 404 are key-connected to the outside of the driving stirring shaft 401 and the driven stirring shaft 402; specifically, the stirring blades 403 on the driving stirring shaft 401 and the driven stirring shaft 402 are arranged staggeredly to improve the stirring efficiency and avoid collision at the same time; the stirring blades 403 and the washers 404 can be arranged according to requirements; the driving stirring shaft 401 and the driven stirring shaft 402 and the stirring blades 403 and the washers 404 can adopt a key connection method other than the flat key connection.

[0042] Specifically, as Figure 4 shown, a push plate 4031 and a scraping plate 4032 are detachably arranged on the stirring blade 403. The push plate 4031 is obliquely arranged on the side surface of the stirring blade 403, and the scraping plate 4032 is arranged at the top end of the stirring blade 403. Both the push plate 4031 and the scraping plate 4032 are connected to the stirring blade 403 by bolts. When local wear is severe, it is not necessary to replace the whole, saving costs.

[0043] Specifically, as Figure 5 shown, the linkage device 3 includes a driving wheel 301, a first transmission wheel 302, a second transmission wheel 303, a driven wheel 304 and a housing 305. The driving wheel 301, the first transmission wheel 302, the second transmission wheel 303 and the driven wheel 304 are all arranged inside the housing 305. The driving wheel 301 is key-connected to the driving stirring shaft 401, the driven wheel 304 is key-connected to the driven stirring shaft 402. The driving wheel 301 and the driven wheel 304 are linked through the first transmission wheel 302 and the second transmission wheel 303. The housing 305 is fixed to the outside of the stirring chamber 1 by bolts. The driving wheel 301 and the driven wheel 304 are of the same size. The driving wheel 301 drives the driven wheel 304 to rotate through the first transmission wheel 302 and the second transmission wheel 303 to achieve linkage.

[0044] Specifically, as Figure 6 shown, the spraying device 5 includes a water inlet pipe 501, an annular pipe 502, a flow monitor 503 and a nozzle 504. The input end of the water inlet pipe 501 is communicated with an external water supply device, the output end of the water inlet pipe 501 is communicated with the annular pipe 502. The flow monitor 503 is arranged at the connection of the water inlet pipe 501 and the annular pipe 502. The annular pipe 502 is arranged in the annular groove of the feeding port 104. A plurality of nozzles 504 are arranged at the lower end of the annular pipe 502. Both the flow monitor 503 and the nozzle 504 are electrically connected to the PLC controller 6. The nozzle 504 is an adjustable water curtain nozzle, which can evenly spray water into the stirring chamber 1. At the same time, the external water supply device is a water pump with adjustable water pressure. By cooperating with the adjustable water pump, the water pressure is increased to clean the sundries on the inner wall of the stirring chamber 1. The flow monitor 503 is used to monitor the water consumption to prevent the imbalance of concrete proportion.

[0045] Specifically, it further includes a heating device 8. The heating device 8 is arranged on both sides of the lower part 102. A heat preservation layer is arranged on the outside of the heating device 8. The heating device 8 is electrically connected to the PLC controller 6. When the temperature is lower than the preset temperature, the PLC controller 6 controls the heating device 8 to start heating, avoiding the unqualified concrete strength caused by too low temperature. And the heat preservation layer arranged on the outside of the heating device 8 can prevent the staff from being scalded.

[0046] Specifically, as Figure 7 shown, it further includes a dust cover 9, the dust cover 9 is adapted to the size of the feeding port 104, and the dust cover 9 is covered and connected to the feeding port 104; the dust cover 9 can prevent dust from flying out and materials from splashing during stirring.

[0047] The using process of the present utility model is as follows:

[0048] Preparation stage: power on the device, at the same time connect the input end of the water inlet pipe 501 to an external water pump, and select the water consumption;

[0049] Stirring stage: first start the motor 2 through the PLC controller, then put materials into the feeding port 104, and the PLC controller starts the spraying device 5. The external water pump pumps water into the water inlet pipe 501, then enters the annular pipe 502 through the flow monitor 503, and finally sprays out from the nozzle 504 to form a water curtain to reduce dust. The flow monitor 503 starts to record the water consumption. After the materials are added, cover the dust cover 9; during the stirring process, the active stirring shaft 401 rotates counterclockwise, the driven stirring shaft 402 rotates clockwise, the push plate 4031 pushes the materials to one side, and the scraper 4032 scrapes the materials adhered to the inner wall of the stirring chamber 1. At the same time, the nozzle 504 continuously sprays a water curtain until the preset water consumption is reached. During this period, the water supply speed can be controlled through the PLC controller;

[0050] Discharging stage: after continuously stirring for a specified time, the PLC controller controls the hydraulic cylinder 106 to contract. At this time, the baffle 105 opens downward, and the materials fall for collection. The stirring mechanism 4 can play a role in pushing out the materials. After the discharging is completed, the PLC controller controls the hydraulic cylinder 106 to extend, and the baffle 105 closes to carry out the next stirring operation;

[0051] Cleaning work: increase the pressure through an external water pump, control the size and range of the water curtain sprayed by the nozzle 504, start the stirring mechanism 4, and wash the materials adhered to the inside of the stirring chamber 1 and the stirring mechanism 4 through a high-pressure water curtain. After the washing is completed, open the baffle 105 to drain the accumulated water to complete the cleaning work;

[0052] Maintenance work: disassemble the connection between the motor 2 and the active stirring shaft 401, and remove the motor 2. At the same time, remove the linkage devices 2 on both sides. At this time, the upper part 101 and the lower part 102 of the stirring chamber 1 can be separated, and the upper part is removed. At this time, the inside can be maintained and repaired. After the maintenance is completed, install each component in place in turn to restore the use.

[0053] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0054] The above-described embodiments are only descriptions of the preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A horizontal double-shaft mixer, characterized in that: It includes a mixing chamber (1), a motor (2), a linkage device (3), a mixing mechanism (4), a spraying device (5) and a PLC controller (6); the two mixing mechanisms (4) are arranged side by side and installed in the mixing chamber (1), the linkage device (3) is arranged on the outer wall of the mixing chamber (1), both ends of the two mixing mechanisms (4) pass through the side wall of the mixing chamber (1) and are fixedly connected with the linkage device (3) in a positioning manner, the end of the mixing shaft of one of the mixing mechanisms (4) passes through the linkage device (3) and is connected with the output end of the motor (2), the motor (2) and the PLC controller (6) are both fixedly arranged on a support plate (7); the spraying device (5) is arranged at the top of the mixing chamber (1), the spraying device (5) is communicated with an external water supply device, and the motor (2), the mixing mechanism (4) and the spraying device (5) are all electrically connected with the PLC controller (6).

2. The horizontal double-shaft mixer according to claim 1, characterized in that: The mixing chamber (1) includes an upper part (101), a lower part (102), a support column (103), a feeding port (104), a baffle plate (105) and a hydraulic cylinder (106); a feeding port (104) is arranged in the middle of the upper part (101), an annular groove is arranged at the lower end of the feeding port (104), a baffle plate (105) is arranged at the discharge port of the lower part (102), one end of the baffle plate (105) is rotatably connected with the lower part (102), the non-working end of the hydraulic cylinder (106) is hinged to the middle support column (103), the working end of the hydraulic cylinder (106) is hinged to the other end of the baffle plate (105), the bottom end of the upper part (101) is inserted into the inner part of the top of the lower part (102), flange edges are arranged around the lower part (102) and the upper part (101), and the lower part (102) and the upper part (101) are connected together by a bolt assembly through the flange edges. Both ends of the mixing shaft in the mixing mechanism (4) are located at the connection part of the lower part (102) and the upper part (101), and six support columns (103) are arranged at the bottom of the lower part (102) and the support plate (7).

3. The horizontal double-shaft mixer according to claim 2, wherein: A support plate (7) is connected to the outside of the mixing chamber (1), and the motor (2) and the PLC controller (6) are fixed on the support plate (7).

4. The horizontal double-shaft mixer according to claim 1, wherein: The stirring mechanism (4) includes a driving stirring shaft (401), a driven stirring shaft (402), stirring blades (403) and washers (404); the stirring shaft of one stirring mechanism (4) is set as the driving stirring shaft (401), and both ends of the driving stirring shaft (401) pass through the stirring chamber (1) and are key-connected to the driving wheel (301) in the linkage device (3), and the front end of the driving stirring shaft (401) passes through the linkage device (3) and is connected to the working end of the motor (2); the stirring shaft of the other stirring mechanism (4) is set as the driven stirring shaft (402), and both ends of the driven stirring shaft (402) pass through the stirring chamber (1) and are key-connected to the driven wheel (304) in the linkage device (3); a plurality of the stirring blades (403) and the washers (404) are key-connected to the outer sides of the driving stirring shaft (401) and the driven stirring shaft (402).

5. The horizontal double-shaft mixer according to claim 4, wherein: A push plate (4031) and a scraping plate (4032) are detachably arranged on the stirring blade (403), the push plate (4031) is obliquely arranged on the side surface of the stirring blade (403), and the scraping plate (4032) is arranged at the top of the stirring blade (403).

6. The horizontal double-shaft mixer according to claim 4, characterized in that: The linkage device (3) includes a driving wheel (301), a first transmission wheel (302), a second transmission wheel (303), a driven wheel (304) and a housing (305); the driving wheel (301), the first transmission wheel (302), the second transmission wheel (303) and the driven wheel (304) are all arranged inside the housing (305), the driving wheel (301) is key-connected to the driving stirring shaft (401), the driven wheel (304) is key-connected to the driven stirring shaft (402), the driving wheel (301) and the driven wheel (304) are linked through the first transmission wheel (302) and the second transmission wheel (303), and the housing (305) is fixed to the outside of the stirring chamber (1) by bolts.

7. The horizontal double-shaft mixer according to claim 2, wherein: The spraying device (5) includes a water inlet pipe (501), an annular pipe (502), a flow monitor (503) and spray nozzles (504); the input end of the water inlet pipe (501) is communicated with an external water supply device, the output end of the water inlet pipe (501) is communicated with the annular pipe (502), the flow monitor (503) is arranged at the connection of the water inlet pipe (501) and the annular pipe (502), the annular pipe (502) is arranged in the annular groove of the material inlet (104), a plurality of the spray nozzles (504) are arranged at the lower end of the annular pipe (502), and both the flow monitor (503) and the spray nozzles (504) are electrically connected to the PLC controller (6).

8. The horizontal double-shaft mixer according to claim 2, wherein: It further includes a heating device (8), the heating device (8) is arranged on both sides of the lower part (102), a heat preservation layer is arranged on the outside of the heating device (8), and the heating device (8) is electrically connected to the PLC controller (6).

9. The horizontal double-shaft mixer according to claim 2, characterized in that: It further includes a dust cover (9), the dust cover (9) is adapted to the size of the feeding port (104), and the dust cover (9) is covered and connected to the feeding port (104).

Images