Liquid layer adjusting device for centrifugal machine

Abstract

The utility model discloses a liquid layer adjusting device for a centrifugal machine, and belongs to the technical field of centrifugal machines, the centrifugal machine comprises a large end cover plate, and a water outlet hole is formed in the large end cover plate; the liquid layer adjusting device comprises an adjusting sheet which is movably arranged at the water outlet hole and is suitable for being intruded into the water outlet hole; and the adjusting wheel is an eccentric wheel, and the adjusting wheel rotates to be suitable for pushing the adjusting sheet to move, so that the opening size of the water outlet hole is controlled. The utility model has the beneficial effects that: (1) the adjusting sheet does not need to be disassembled, the structure is simple, the volume is smaller, material waste is avoided, and the operation is simple and labor-saving; and (2) the size of the water outlet hole is adjusted by rotating the adjusting wheel and the adjusting sheet to do eccentric circular motion, so that the depth of the liquid layer is adjusted, the operation is accurate and controllable to achieve stepless adjustment, and the adjusting precision is high.

Description

Technical Field

[0001] The present application relates to the technical field of centrifuges, and in particular to a liquid layer regulating device for a centrifuge. Background Art

[0002] A centrifuge is a machine that uses centrifugal force to separate liquids from solid particles or the components of a liquid-liquid mixture. Currently, centrifuges are widely used in the chemical, petroleum, food, pharmaceutical, mineral processing, coal, water treatment, and shipbuilding industries. Horizontal centrifuges, in particular, offer unparalleled price advantages over similar products. Furthermore, they feature advanced design technology, stable performance, simple structure, easy maintenance, a small footprint, automatic and continuous operation, high throughput, and high raw material utilization. They possess broad market prospects and a wide range of applications.

[0003] However, existing centrifuges have the following drawbacks: During commissioning, the liquid depth is adjusted by replacing adjusting discs. This requires multiple sets of adjusting discs of varying specifications to meet the needs of commissioning. This is inconvenient, wastes materials, and sometimes causes breakage, requiring the adjustment discs to be re-manufactured to meet commissioning requirements. Solving this cumbersome process of adjusting the liquid depth is an urgent issue. Summary of the Invention

[0004] The purpose of the present application is to provide a liquid layer adjustment device that can adjust the liquid layer depth without disassembly, has precise adjustment, and is easy to operate.

[0005] To achieve the above objectives, the present application provides a liquid layer adjustment device for a centrifuge, wherein the centrifuge includes a large end cover plate, on which a water outlet is provided; the liquid layer adjustment device includes: an adjustment plate, which is movably arranged at the water outlet and is suitable for intruding into the water outlet; and an adjustment wheel, which is an eccentric wheel, and the rotation of the adjustment wheel is suitable for pushing the adjustment plate to move, thereby controlling the size of the water outlet opening. The large end cover plate is provided with multiple water outlets, and multiple liquid layer adjustment devices are installed in each water outlet hole; by rotating the adjustment wheel, the adjustment plate is driven to slide, causing it to undergo eccentric circular motion, the size of the water outlet hole changes, and the liquid layer depth at the liquid outlet end of the centrifuge changes accordingly; the liquid layer adjustment device can achieve stepless adjustment, with precise adjustment and simple operation.

[0006] Preferably, the adjusting plate is provided with a first circular hole, the adjusting wheel has an eccentric disc, and the adjusting wheel is rotatably connected to the adjusting plate through the cooperation between the eccentric disc and the first circular hole. The adjusting wheel is rotatably connected to the adjusting plate, and rotating the adjusting wheel can drive the adjusting plate to rotate relative to the adjusting plate.

[0007] Preferably, there are a plurality of first circular holes, each of which is provided with the same adjusting wheel. There can be two, three or more first circular holes, and the number of adjusting wheels matches the number of circular holes.

[0008] Preferably, the device further comprises a bottom plate, which is fixedly mounted on the large end cover and covers the water outlet. An overflow port is formed on the bottom plate, and the overflow port is connected to the water outlet. The adjusting plate is slidably mounted on the bottom plate and adapted to penetrate the overflow port. The adjusting wheel is rotatably mounted on the bottom plate. The bottom plate covers the water outlet, leaving only the overflow port for passage. The adjusting plate moves to cover a portion of the overflow port, and the size of the water outlet and the depth of the liquid layer can be adjusted by the adjusting plate.

[0009] Preferably, an eccentrically arranged mounting cylinder extends from one side of the eccentric disc, and a second circular hole is formed in the base plate. The adjusting wheel is rotatably connected to the base plate through the engagement of the mounting cylinder and the second circular hole. The adjusting wheel is rotatably connected to the base plate via a cylinder extending into the second circular hole. When the adjusting wheel rotates, the mounting cylinder rotates in the second circular hole.

[0010] Preferably, the device further comprises a panel, wherein the panel and the bottom plate are spaced apart to form a sliding cavity, and the adjustment piece is slidably arranged in the sliding cavity. The adjustment piece is in close contact with both the bottom plate and the panel, and can slide in the sliding cavity when the adjustment piece moves.

[0011] Preferably, an operating cylinder extends from the other side of the eccentric disc, the operating cylinder being concentrically arranged with the mounting cylinder. A third circular hole is formed in the panel, and the adjusting wheel is rotatably connected to the panel through the cooperation between the operating cylinder and the third circular hole. The adjusting wheel is rotatably connected to the base plate via a cylinder penetrating the third circular hole. When the adjusting wheel rotates, the operating cylinder rotates in the third circular hole.

[0012] Preferably, the device further includes fixing bolts. The large end cover is provided with a plurality of threaded holes, the base plate is provided with a plurality of first through holes, and the panel is provided with a plurality of second through holes. The fixing bolts are adapted to pass through the first and second through holes and be threadedly connected to the threaded holes, thereby securing the base plate and the panel to the large end cover. The bolts pass through the panel and base plate and are secured to the large end cover. The sliding cavity formed by the panel and base plate, as well as the adjustment plate and adjustment wheel, are secured to the large end cover.

[0013] Preferably, the adjustment plate is further provided with a scale. When the adjustment plate slides, the edge of the panel is positioned at different positions on the scale, thereby indicating the opening size of the overflow port. After the adjustment plate moves, the liquid layer adjustment depth can be read at the intersection of the edge of the panel and the scale.

[0014] Preferably, ears are provided on both sides of the regulating piece, and the ears protrude from the outer side of the regulating piece; the panel is provided with an inclined surface on the side close to the overflow port, and the inclined surface is formed from the upper plane of the panel to the edge of the lower plane; the operating cylinder of the regulating wheel is provided with a groove on the side connected to the panel; there are multiple water outlets, and the multiple water outlets are evenly distributed outside the central hole of the large end cover, and each water outlet is provided with the same liquid layer regulating device. When the regulating piece performs eccentric circular motion, the regulating piece as a whole is offset relative to the liquid layer regulating plate, and the ears can block the position vacated by the offset to prevent overflow; the slope of the panel inclined surface can have a drainage effect, prevent liquid accumulation on the panel, and reduce obstruction, so that the scale can be better seen; the regulating wheel is provided with a groove for the rotation operation of a screwdriver; the liquid layer regulating devices are evenly distributed, and can achieve the same rate of overflow when the large end cover rotates at a uniform speed.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] (1) No need to disassemble or assemble the adjustment plate, simple structure, small size, avoid material waste, simple and labor-saving operation;

[0017] (2) By rotating the adjusting wheel, the adjusting plate makes an eccentric circular motion to adjust the size of the water outlet, thereby adjusting the depth of the liquid layer. The operation is precise and controllable to achieve stepless adjustment with high adjustment accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of a liquid layer regulating device according to a first embodiment of the present invention;

[0019] Figure 2 This is an exploded view of the structure of the first embodiment of the present invention;

[0020] Figure 3 This is a schematic structural diagram of the bottom plate in Example 1 of the present utility model;

[0021] Figure 4 This is a schematic structural diagram of the adjustment piece in Example 1 of the present utility model;

[0022] Figure 5 This is a schematic structural diagram of the adjustment wheel in Example 1 of the present utility model;

[0023] Figure 6 This is a schematic structural diagram of the panel in Example 1 of the present utility model;

[0024] Figure 7 This is a schematic structural diagram of the large end cover plate in Example 1 of the present utility model;

[0025] Figure 8 This is a structural schematic diagram of the liquid layer regulating device in the rotating state according to the first embodiment of the present invention;

[0026] Figure 9 It is a left side schematic diagram of the first embodiment of the present invention.

[0027] In the figure: 1. large end cover; 2. bottom plate; 3. adjusting plate; 4. adjusting wheel; 5. panel; 6. fixing bolt; 101. water outlet; 102. liquid inlet; 103. liquid outlet; 104. threaded hole; 105. center hole; 201. second circular hole; 202. first through hole; 203. overflow; 301. first circular hole; 302. ear; 303. scale; 401. operating cylinder; 402. eccentric disk; 403. mounting cylinder; 501. third circular hole; 502. second through hole; 503. inclined surface. DETAILED DESCRIPTION

[0028] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0029] In the description of this application, it should be noted that for directional words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, the directions and positional relationships indicated are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of this application.

[0030] It should be noted that the terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0031] The terms "comprises" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, product or apparatus.

[0032] The present application provides a liquid layer regulating device for a centrifuge, such as Figure 1As shown, it includes: a base plate 2, an adjustment piece 3, an adjustment wheel 4 and a panel 5. The base plate 2, the adjustment piece 3 and the panel 5 are tightly connected in sequence, the adjustment wheel 4 is connected to the base plate 2, the adjustment piece 3 and the panel 5, and the base plate 2 and the panel 5 are fixedly connected by fixing bolts 6.

[0033] The liquid layer regulating device is fixed on the large end cover plate, such as Figure 2 、 Figure 9 As shown, the cover body of the large end cover plate 1 is provided with a plurality of water outlet holes 101 open at both ends, generally four in number, evenly distributed near the center hole 105 of the large end cover plate. The liquid layer regulating devices are all installed in the water outlet holes 101, and the bottom plate 2 and the panel 5 are fixed in the water outlet holes 101 of the large end cover plate by fixing bolts 6.

[0034] When the adjusting wheel 4 is rotated, the adjusting piece 3 slides along with the adjusting wheel 4 to make eccentric circular motion. Figure 8 As shown, the adjustment plate 3 is offset relative to the liquid layer adjustment plate as a whole, the size of the water outlet 101 changes, and the amount of mixed liquid entering through the large end cover plate 1 changes, which is to adjust the liquid layer depth at the outlet. The adjustment wheel 4 can be operated by a screwdriver, and the rotation angle can be finely controlled, which can achieve relatively smooth adjustment within a range. Therefore, the adjustment of the liquid layer depth can be infinitely adjusted. It should be noted that the specific working principle of the centrifuge is well known to those skilled in the art and will not be elaborated on here.

[0035] It should also be noted that the structures of the water outlet holes 101 and the liquid layer regulating devices on all the large end covers 1 are the same.

[0036] The specific structural features of each component are described below. In this embodiment, the number of combinations of the adjustment plate 3, the base plate 2, the circular holes of the panel 5, and the adjustment wheel 4 varies. For ease of understanding, a specific embodiment will be used below to illustrate. It should be noted that the specific number includes, but is not limited to, the following embodiments.

[0037] Example 1:

[0038] like Figure 7 As shown, the left end of the large end cover plate 1 is the liquid outlet 103 of the centrifuge, the middle is the cover body of the large end cover plate 1, and the right end is the liquid inlet 102 of the mixed liquid in the centrifuge. There are 10 evenly distributed screw holes 104 on the edge of the cover body of the large end cover plate 1 to connect with the screw holes on the large end shaft neck. Four evenly distributed water outlet holes 101 are provided on the outside of the center hole 105 of the large end cover plate. The ring of the water outlet hole 101 of the cover body is dug out near the liquid inlet 102. The water outlet hole 101 is provided with three screw holes 104 for embedding and fixing the liquid layer adjustment device. By rotating the adjusting wheel, the adjusting plate performs eccentric circular motion to adjust the size of the water outlet hole, thereby realizing the adjustment of the liquid layer depth. The operation is precise and controllable to achieve stepless adjustment with high adjustment accuracy.

[0039] like Figure 3 As shown, the bottom plate 2 is circular, with three screw holes 202 on the edge and two round holes 201 in the middle for connecting with the regulating wheel 4. A leaf-shaped channel opening is dug out below the bottom plate 2, used as an overflow port 203.

[0040] like Figure 4 As shown, two circular holes 301 are provided in the middle of the adjusting plate 3 for connecting with the adjusting wheel 4; the ears 302 on both sides of the adjusting plate 3 protrude from the outer side of the adjusting plate 3. When the adjusting plate 3 makes eccentric circular motion, the adjusting plate 3 as a whole is offset relative to the liquid layer adjustment plate, and the ears 302 can block the position vacated due to the offset to prevent liquid overflow; a scale 303 is provided below the first circular hole 301 near one end of the water outlet 101. When the adjusting wheel 4 is rotated, the liquid layer depth is infinitely adjusted, and the scale 303 can clearly show the current change in liquid layer depth.

[0041] like Figure 5 As shown, the eccentric disc 402 in the middle of the adjusting wheel 4 is connected to the adjusting piece 3, and the left circular surface of the eccentric disc 402 is combined with a mounting cylinder 403, which is used to connect with the base plate 2; the right side of the eccentric disc 402 is combined with an operating cylinder 401 with a digging treatment, and the operating cylinder 401 is provided with a groove for the rotation operation of the screwdriver.

[0042] like Figure 6 As shown, three screw holes 502 are provided at the edge of the panel 5 and two circular holes 501 are provided in the middle for connecting with the adjusting wheel 4. The bottom of the panel 5 is cut to leave a certain inclined surface 503. The slope of the inclined surface 503 can play a drainage effect to prevent liquid accumulation on the panel 5 and can reduce obstruction to better see the scale 303.

[0043] Specifically, the connection structure of the liquid layer adjustment device is described in detail as follows: two adjustment wheels 4 are used, the eccentric disc 402 of the adjustment wheel 4 is connected to the circular hole 301 of the adjustment plate 3, the left mounting cylinder 403 is connected to the circular hole 201 of the bottom plate 2, and the right operating cylinder 401 of the adjustment wheel 4 is connected to the circular hole 501 of the panel 5, which serves as the operating point for rotating the adjustment wheel 4. The bottom plate 2 and the panel 5 are fixed to the water outlet of the large end cover plate 1 by fixing bolts 6. When the groove of the operating cylinder 401 of the adjustment wheel 4 is rotated with a screwdriver, the adjustment plate 3 will slide along, thereby performing eccentric circular motion. The adjustment plate 3 as a whole will be offset relative to the liquid layer adjustment plate, the size of the water outlet will change, and the liquid layer depth will achieve the effect of infinite adjustment. The liquid layer depth status can be clearly understood through the scale 303, without the need to disassemble and assemble the adjustment plate 3. The structure is simple, the volume is small, material waste is avoided, and the operation is simple and labor-saving.

[0044] The fixing bolt 6 adopts a hexagon socket fixing bolt. The hexagon socket fixing bolt is small and exquisite, does not take up other space, and is subjected to large force when tightening the screw. The hexagonal hole of the hexagon socket is cylindrical, and the wrench will not slip out when tightening the crossbar.

[0045] The above describes the basic principles, main features, and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-described embodiments. The above-described embodiments and the specification merely illustrate the principles of the present application. Various changes and improvements may be made to the present application without departing from the spirit and scope of the present application. These changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A liquid layer regulating device for a centrifuge, the centrifuge comprising a large end cover plate, the large end cover plate being provided with a water outlet hole; characterized in that: The liquid layer regulating device comprises: an adjusting sheet, the adjusting sheet being movably disposed at the water outlet and being adapted to intrude into the water outlet; and The regulating wheel is an eccentric wheel, and the rotation of the regulating wheel is suitable for pushing the regulating plate to move, thereby controlling the opening size of the water outlet.

2. The liquid layer regulating device for a centrifuge according to claim 1, characterized in that: The adjusting plate is provided with a first circular hole, the adjusting wheel has an eccentric circular disc, and the adjusting wheel is rotatably connected to the adjusting plate through the cooperation between the eccentric circular disc and the first circular hole.

3. The liquid layer regulating device for a centrifuge according to claim 2, characterized in that: There are a plurality of the first circular holes, and the same adjusting wheel is arranged in each of the first circular holes.

4. The liquid layer regulating device for a centrifuge according to claim 2, characterized in that: It also includes a bottom plate, which is fixedly arranged on the large end cover plate and covers the water outlet, an overflow port is opened on the bottom plate, and the overflow port is connected to the water outlet, the adjustment plate is slidably arranged on the bottom plate and is suitable for invading the overflow port, and the adjustment wheel is rotatably arranged on the bottom plate.

5. The liquid layer regulating device for a centrifuge according to claim 4, characterized in that: An eccentrically arranged mounting cylinder extends from one side of the eccentric disk, a second circular hole is provided on the bottom plate, and the adjusting wheel is rotatably connected to the bottom plate through the cooperation of the mounting cylinder and the second circular hole.

6. The liquid layer regulating device for a centrifuge according to claim 5, characterized in that: It also includes a panel, the panel and the bottom plate are spaced apart to form a sliding cavity, and the adjustment sheet is slidably arranged in the sliding cavity.

7. The liquid layer regulating device for a centrifuge according to claim 6, characterized in that: An operating cylinder extends from the other side of the eccentric disc, the operating cylinder and the mounting cylinder are concentrically arranged, a third circular hole is opened on the panel, and the adjusting wheel is rotatably connected to the panel through the cooperation of the operating cylinder and the third circular hole.

8. The liquid layer regulating device for a centrifuge according to claim 6, characterized in that: It also includes fixing bolts, the large end cover plate is provided with a plurality of threaded holes, the base plate is provided with a plurality of first through holes, and the panel is provided with a plurality of second through holes; the fixing bolts are suitable for passing through the first through holes and the second through holes and being threadedly connected in the threaded holes, thereby fixing the base plate and the panel on the large end cover plate.

9. The liquid layer regulating device for a centrifuge according to claim 6, characterized in that: The adjusting piece is also provided with a scale. When the adjusting piece slides, the edge of the panel is located at different positions of the scale, thereby displaying the opening size of the overflow port.

10. The liquid layer regulating device for a centrifuge according to claim 7, characterized in that: Ears are provided on both sides of the adjusting plate, and the ears protrude from the outer side of the adjusting plate; a slope is provided on the side of the panel close to the overflow port, and the slope is formed by the edge of the upper plane to the lower plane of the panel; a groove is provided on the side where the operating cylinder of the adjusting wheel is connected to the panel; there are multiple water outlet holes, and the multiple water outlet holes are evenly distributed on the outside of the center hole of the large end cover plate, and each water outlet hole is provided with the same liquid layer regulating device.

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