Limiting device and deep-cone thickener

Abstract

The utility model provides a limiting device and a deep-cone thickener, and relates to the field of mining. Wherein the limiting device comprises a base, a mounting seat and a buffer part, the base is fixedly connected with a rack of the deep-cone thickener, the mounting seat is detachably connected with the base, the mounting seat is provided with a mounting cavity, the main shaft of the harrow frame is arranged in the mounting cavity in a penetrating manner, and the buffer part is arranged between the main shaft and the wall of the mounting cavity. The position stability of the main shaft of the harrow frame in the operation process is guaranteed through the base, the mounting base and the buffer piece, deviation caused by uneven stress is prevented, the harrow frame is protected, and harrow pressing accidents are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of mining, in particular, to a limiting device and a deep cone thickener. BACKGROUND

[0002] In the operation process of the deep cone thickener, the driving system drives the rake frame to rotate slowly relative to the frame, and the flocculated slurry is accumulated on the cone bottom plate, and the scraper of the rake frame scrapes the slurry on the cone bottom plate into the collecting cylinder. In this process, the deposition and hardening of tailings can cause frequent torque deviation, rake frame unbalanced load and rake pressing accidents of the deep cone thickener. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the present application is to provide a limiting device and a deep cone thickener, which can ensure the stable position of the main shaft of the rake frame in the operation of the deep cone thickener, prevent deviation due to uneven stress, protect equipment components, reduce the wear of the main shaft, reduce maintenance cost and improve the overall durability of the equipment.

[0004] In a first aspect, the utility model provides a limiting device for limiting the rake frame of a deep cone thickener, which comprises a base, a mounting seat and a buffer, the base is fixedly connected with the frame of the deep cone thickener, the mounting seat is detachably connected with the base, the mounting seat is provided with a mounting cavity, the main shaft of the rake frame is arranged in the mounting cavity, and the buffer is arranged between the main shaft and the cavity wall of the mounting cavity.

[0005] In an optional embodiment, the mounting seat comprises a plurality of seat bodies, adjacent seat bodies are detachably connected, and the plurality of seat bodies jointly define the mounting cavity, and each seat body is detachably connected with the base.

[0006] In an optional embodiment, each seat body comprises an arc-shaped body, a first protruding portion and a second protruding portion, a plurality of arc-shaped bodies jointly define the mounting cavity, and each arc-shaped body comprises a first end and a second end, a corresponding first protruding portion is located at the first end and extends away from the mounting cavity, and a corresponding second protruding portion is located at the second end and extends away from the mounting cavity.

[0007] In an optional embodiment, each seat body further comprises a reinforcing rib, a plurality of reinforcing ribs are arranged circumferentially along the axis of the mounting cavity, each reinforcing rib is arranged on the arc-shaped body and connected with the first end and the second end respectively.

[0008] In an optional embodiment, the first protruding portion and the second protruding portion are both arranged in a circular arc, the outer arc diameter of the first protruding portion is smaller than the outer arc diameter of the second protruding portion, and the second protruding portion is arranged closer to the base relative to the first protruding portion.

[0009] In an optional embodiment, the base is shaped to match the second protrusion, and the base is provided with a through slot, which is in communication with the mounting cavity.

[0010] In an optional embodiment, the buffer is made of a polymer material.

[0011] In an optional embodiment, the buffer is annularly arranged.

[0012] In a second aspect, the utility model provides a deep cone thickener, the deep cone thickener includes frame, rake frame and the limiting device in the foregoing embodiment, the limiting device is installed on the frame, the main shaft of rake frame is arranged in the limiting device.

[0013] In an optional embodiment, the frame includes a material collecting cylinder, the limiting device is installed in the material collecting cylinder, and the main shaft is arranged in the mounting cavity of the limiting device.

[0014] Compared with the prior art, the application has the following beneficial effects:

[0015] The base, the mounting seat and the buffer of the application ensure the position stability of the main shaft of the rake frame during operation, prevent the rake frame from deviating due to uneven stress, protect the rake frame, reduce the occurrence of rake pressing accidents, and reduce the main shaft wear, reduce maintenance costs and improve the overall durability of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0017] Figure 1 The three-dimensional structure schematic diagram of the limiting device and the deep cone thickener in some embodiments is shown;

[0018] Figure 2 The exploded schematic diagram of the limiting device in some embodiments is shown;

[0019] Figure 3 The structure schematic diagram of the limiting device and the main shaft in some embodiments is shown.

[0020] Explanation of main element symbols:

[0021] 100 - limiting device; 110 - base; 120 - mounting seat; 121 - seat body; 121a - first seat body; 121b - second seat body; 1211 - mounting cavity; 1212 - arc-shaped body; 1213 - first protruding part; 1214 - second protruding part; 1215 - reinforcing rib; 130 - buffer; 200 - rack; 210 - aggregate cylinder; 300 - harrow frame; 310 - main shaft. DETAILED DESCRIPTION

[0022] Embodiments of the present application are described in detail below with reference to the accompanying drawings, in which the same or similar components have the same or similar designations and functions throughout the various figures and embodiments described herein. The embodiments described below are examples of embodiments of the present application and are not intended to limit the scope of the present application.

[0023] In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate relative or positional relationships based on the orientation or position shown in the drawings, and are merely used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the present application.

[0024] In addition, the terms "first", "second", etc. are used only for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0025] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] In the present application, unless specifically stated and limited otherwise, a first feature is "on" or "under" a second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature is "over", "above" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature is "under", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0027] Embodiment one

[0028] Please refer to Figure 1 , the embodiment is used for the limit of the rake frame 300 of the deep cone thickener, in the use process, the rake frame 300 rotates relative to the rack 200 around the main shaft 310, realizes solid-liquid separation through gravity settling and flocculation, concentrates the tailings slurry into high-concentration slurry and discharges, and the supernatant overflow is used for recycling or recycling.

[0029] Please continue to refer to Figure 1 , the embodiment provides a limiting device, which comprises a base 110, a mounting seat 120 and a buffer 130.

[0030] The base 110 is fixedly connected with the rack 200 of the deep cone thickener, and in actual application, the rack 200 is a cylinder body of the deep cone thickener. In the embodiment, the base 110 serves as a bearing component of the limiting device 100 and should have high rigidity to avoid damage due to excessive torque in the use process, thereby avoiding the occurrence of rake pressing accidents.

[0031] The mounting seat 120 is detachably connected with the base 110, and the detachable connection includes a screwing mode that can freely detach the mounting seat 120. When the limiting device 100 is maintained, the mounting seat 120 can be detached from the base 110.

[0032] Please refer to Figure 1 and Figure 2 , the mounting seat 120 is provided with a mounting cavity 1211, and the main shaft 310 of the rake frame 300 penetrates the mounting cavity 1211. In the embodiment, the main shaft 310 penetrates the mounting cavity 1211, and the main shaft 310 is gap-fitted or interference-fitted with the mounting cavity 1211.

[0033] The mounting seat 120 comprises a plurality of seat bodies 121, adjacent seat bodies 121 are detachably connected, and the plurality of seat bodies 121 jointly define the mounting cavity 1211, and each seat body 121 is detachably connected with the base 110. The mounting seat 120 is made of a rigid material and has good limiting function, which can comprehensively improve the anti-deviation performance of the main shaft 310.

[0034] Therefore, the mounting seat 120 is designed in a split type, which is particularly suitable for the arrangement of the bottom of the deep-cone thickener with limited space, and the mounting process does not need to disassemble the main shaft 310 in a complicated manner, thereby greatly reducing the construction difficulty. In the operation process under high load, the mounting seat 120 is easy to be damaged, and the split type design is more conducive to the replacement of the mounting seat 120.

[0035] In addition, the mounting cavity 1211 fully wraps the main shaft 310, increases the contact area between the mounting seat 120 and the main shaft 310, disperses the torsion, and reduces the abrasion of the main shaft 310 to the mounting seat 120.

[0036] Each seat body 121 includes an arc-shaped body 1212, a first protruding part 1213, and a second protruding part 1214. The plurality of arc-shaped bodies 1212 jointly define the mounting cavity 1211. It can be understood that the mounting cavity 1211 defined by the plurality of arc-shaped bodies 1212 is in a cylindrical shape. Therefore, the shape of the mounting cavity 1211 matches the main shaft 310, and the mounting cavity 1211 can rotate coaxially in the rotating process, thereby reducing the probability of shaking of the main shaft 310 and ensuring the position stability of the main shaft 310 of the rake frame 300 in the operation process.

[0037] The cylindrical mounting cavity 1211 can fully wrap the main shaft 310, has a good deviation correction effect on the multi-directional eccentric load, and has a wide stress area for the main shaft 310, so that the loosening is not easy to occur, and the operation reliability is improved.

[0038] Please refer to Figure 2 and Figure 3 For the convenience of description and understanding, the embodiment sets that the mounting seat 120 includes two identical seat bodies 121, which are defined as a first seat body 121a and a second seat body 121b. The first seat body 121a and the second seat body 121b are detachably connected through fasteners such as bolts. The arc-shaped body 1212 of the first seat body 121a is semicircular with a central angle of 180°. The arc-shaped body 1212 of the second seat body 121b is also semicircular with a central angle of 180°.

[0039] Similarly, if the number of seat bodies 121 is N, the central angle of each seat body 121 is defined as ∠AOB, and ∠AOB=360° / N.

[0040] In some other embodiments, the shapes of the seat bodies 121 are different, and the central angles of the seat bodies 121 can also be different. The shapes of the seat bodies 121 are the same or different, which does not affect the use purpose of the seat bodies 121, and is not limited herein.

[0041] Each arc-shaped body 1212 comprises a first end and a second end, a corresponding first protrusion 1213 is located at the first end and extends away from the mounting cavity 1211, and a corresponding second protrusion 1214 is located at the second end and extends away from the mounting cavity 1211.

[0042] In some other embodiments, the base 110 can also have other shapes, as long as the upper surface area of the base 110 is greater than the lower surface area of the second protrusion 1214, and the base 110 can be used to support the mounting seat 120, which is not limited herein.

[0043] The setting of the reinforcing rib 1215 has the following two benefits: first, the reinforcing rib 1215 can improve the strength of the mounting seat 120, and avoid the mounting seat 120 from being broken due to excessive torque; second, the setting of the reinforcing rib 1215 can reduce the weight of the body of the mounting seat 120 while ensuring the strength.

[0044] In the present embodiment, the first protrusion 1213 and the second protrusion 1214 are both arranged in a circular arc, the outer arc diameter of the first protrusion 1213 is smaller than the outer arc diameter of the second protrusion 1214, and the second protrusion 1214 is closer to the base 110 than the first protrusion 1213. In the present embodiment, the first protrusion 1213 is located at one end of the arc-shaped body 1212 away from the base 110, and the second protrusion 1214 is located at one end of the arc-shaped body 1212 close to the base 110.

[0045] The shape of the base 110 is matched with the second protrusion 1214, and the base 110 is provided with a through slot, which is in communication with the mounting cavity 1211. In some embodiments, the shape of the base 110 is in the shape of a circular ring sheet, the upper surface of the base 110 serves as the bearing surface of the second protrusion 1214, and the second protrusion 1214 is matched in shape and size with the base 110.

[0046] In some other embodiments, the base 110 can also have other shapes, as long as the upper surface area of the base 110 is greater than the lower surface area of the second protrusion 1214, and the base 110 can be used to support the mounting seat 120, which is not limited herein.

[0047] The buffer 130 is arranged between the main shaft 310 and the cavity wall of the mounting cavity 1211. In the present embodiment, the buffer 130 is sleeved on one end of the main shaft 310, and the outer surface of the buffer 130 is attached to the cavity wall of the mounting cavity 1211. When the bolts lock the first seat body 121a and the second seat body 121b, the buffer 130 is clamped on the main shaft 310. The buffer 130 can adapt to the uneven load working condition, and can absorb uneven stress through elastic deformation to ensure stable operation.

[0048] After the mounting seat 120 and the base 110 are disassembled, the buffer 130 is taken out along the axial direction of the main shaft 310, so that the worn buffer 130 can be replaced. The buffer 130 is used as a worn part, so that the base 110 and the mounting seat 120 are effectively protected, and therefore, the base 110 and the mounting seat 120 do not need to be replaced, thereby reducing the maintenance cost.

[0049] The buffer 130 is made of a high polymer material. The high polymer material has a low friction coefficient and good wear resistance. In addition, the buffer 130 in the embodiment has elasticity, so that wear is concentrated on the buffer 130, and wear of the main shaft 310 and the mounting seat 120 is avoided. When the buffer 130 is worn to a preset value, only the buffer 130 needs to be replaced. The buffer 130 is simple and fast to disassemble and assemble, which is beneficial to reducing the maintenance time and the maintenance cost and provides a guarantee for long-period operation.

[0050] Corresponding to the shape of the main shaft 310 and the shape of the mounting cavity 1211, the buffer 130 is annularly arranged. Therefore, the mounting seat 120 and the buffer 130 have a certain height, so as to limit the radial swing movement of the main shaft 310 and keep the main shaft 310 stable in operation.

[0051] The embodiment has elasticity, can absorb local impact force and eccentric load, and realizes dynamic response to eccentric load, so that the embodiment has stronger adaptability in processing the eccentric load problem. In addition, the buffer 130 has a certain elasticity, so that the manufacturing precision of the main shaft 310 and the mounting seat 120 can be reduced, and the main shaft 310 and the mounting seat 120 are convenient to install and use.

[0052] Please refer to Figures 1 to 3 Based on the above content, the maintenance principle of the limiting device 100 is further described as follows.

[0053] S100. The base 110 is fixedly connected with the rack 200.

[0054] S200. The buffer 130 is sleeved on the main shaft 310.

[0055] S300. The main shaft 310 on which the buffer 130 is sleeved is placed in the through slot of the base 110.

[0056] S400. The first seat body 121a and the second seat body 121b are respectively placed on both sides of the main shaft 310, and the first seat body 121a and the second seat body 121b are locked by bolts.

[0057] S500. The first seat body 121a and the second seat body 121b are respectively locked with the base 110 by bolts.

[0058] During the long-time high-load operation, the buffer 130, the first seat body 121a and the second seat body 121b will also be worn out. When the above maintenance steps are performed, the operation of the deep-cone thickener can not be stopped, and the replacement and maintenance of the components can be performed under the condition of starting the machine, thereby reducing the waiting time.

[0059] After the limiting device 100 is replaced for multiple times, the damaged components need to be replaced only, and no additional adjustment is needed.

[0060] The base 110, the mounting seat 120 and the buffer 130 are used to ensure the position stability of the main shaft 310 of the rake frame 300 during the operation, prevent the main shaft 310 from deviating due to uneven force, protect the rake frame 300 and reduce the occurrence of the pressing accident. In addition, the modular design is used to simplify the manufacturing process, reduce the material waste, improve the overall reliability and quality consistency of the device.

[0061] Embodiment Two

[0062] Referring to FIG. 1, based on the embodiment one, the deep-cone thickener comprises the frame 200, the rake frame 300 and the limiting device 100 of the embodiment one. The limiting device 100 is arranged on the frame 200, and the main shaft 310 of the rake frame 300 penetrates the limiting device 100.

[0063] The frame 200 comprises the collecting cylinder 210. The limiting device 100 is arranged in the collecting cylinder 210. The collecting cylinder 210 has a cylindrical structure, and the upper end of the collecting cylinder 210 is open and the lower end is sealed, which is used to contain the high-concentration mortar. The rake frame 300 is located in the collecting cylinder 210, and the rake frame 300 rotates relative to the collecting cylinder 210 around the main shaft 310. During the rotation of the rake frame 300, the high-concentration mortar flows under the driving of the rake frame 300.

[0064] Specifically, in order to improve the stability of the embodiment, the base 110 of the limiting device 100 is welded with the bottom of the collecting cylinder 210. When the buffer 130 needs to be replaced, the base 110 and the collecting cylinder 210 can be cut and separated.

[0065] Referring to FIGS. 1, 2 and 3, Figure 1 and Figure 2 The rake frame 300 is provided with the main shaft 310, and the main shaft 310 penetrates the mounting cavity 1211 of the limiting device 100.

[0066] Based on the embodiment one, the embodiment has all the advantages of the embodiment one. In the embodiment, the buffer 130 is also beneficial to reduce the wear of the bottom of the collecting cylinder 210.

[0067] In the description of the specification, the description using the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the particular feature, structure, material or characteristic being described is included in at least one embodiment or example of the present application. The illustrative appearances of the above-mentioned terms in various places in the specification are not necessarily referred to the same embodiment or example. Moreover, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Furthermore, the terms "comprise", "comprising", "include", "including", "contain", "containing" or variations thereof are used inclusively and do not exclude the additional inclusion of unrecited features, structures, materials, or characteristics.

[0068] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be interpreted as limiting the present application, and ordinary skilled people in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A limiting device for limiting the rake frame of a deep cone thickener, characterized in that, The limiting device comprises a base, a mounting seat and a buffer, the base is fixedly connected with a rack of the deep-cone thickener, the mounting seat is detachably connected with the base, the mounting seat is provided with a mounting cavity, a main shaft of the rake frame is arranged in the mounting cavity, and the buffer is arranged between the main shaft and a cavity wall of the mounting cavity.

2. The position-limiting device of claim 1, wherein The mounting seat comprises a plurality of seat bodies, adjacent seat bodies are detachably connected, and the plurality of seat bodies jointly define the mounting cavity.

3. The position-limiting device of claim 2, wherein Each seat body comprises an arc-shaped body, a first protruding portion and a second protruding portion, a plurality of arc-shaped bodies jointly define the mounting cavity, each arc-shaped body comprises a first end and a second end, a corresponding first protruding portion is arranged at the first end and extends away from the mounting cavity, and a corresponding second protruding portion is arranged at the second end and extends away from the mounting cavity.

4. The position-limiting device of claim 3, wherein Each seat body further comprises a reinforcing rib, a plurality of reinforcing ribs are arranged circumferentially along an axis of the mounting cavity, each reinforcing rib is arranged on the arc-shaped body and is connected with the first end and the second end.

5. The position-limiting device of claim 3, wherein The first protruding portion and the second protruding portion are both arranged in a circular arc shape, an outer arc diameter of the first protruding portion is smaller than an outer arc diameter of the second protruding portion, and the second protruding portion is arranged closer to the base than the first protruding portion.

6. The position-limiting device of claim 5, wherein The base is shaped to match the second protruding portion, and the base is provided with a through groove, the through groove is in communication with the mounting cavity.

7. A stop device according to any one of claims 1 to 6, wherein The buffer is made of a high polymer material.

8. A stop device according to any one of claims 1 to 6, wherein The buffer is arranged in a ring shape.

9. A deep cone thickener characterised in that, The deep-cone thickener comprises a rack, a rake frame and the limiting device of any one of claims 1 to 8, the limiting device is arranged on the rack, and a main shaft of the rake frame is arranged in the limiting device.

10. The deep-cone thickener of claim 9, wherein, The rack comprises a material collecting barrel, the limiting device is arranged in the material collecting barrel, and the main shaft is arranged in a mounting cavity of the limiting device.

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