Lubricating grease anti-blocking discharging device for separator of coal mill

Abstract

The invention discloses a coal mill separator lubricating grease anti-blocking discharging device in the technical field of coal mills, which comprises an upper connecting pipe, a lower connecting pipe arranged below the upper connecting pipe, a connecting assembly arranged between the upper connecting pipe and the lower connecting pipe, a lubricating assembly arranged on the connecting assembly, and a stabilizing assembly arranged on the connecting assembly, through cooperation of the first oil conveying pipe, the second oil conveying pipe and the oil discharging pipe, the lubricating grease forms a two-inlet and one-outlet mode, and the oil discharging pipe is arranged on the upper end face of the bearing arranged on the upper portion. Due to the pseudo-gel state characteristic of the lithium-based grease, the lubricating grease flowing out of the oil discharge pipe is extruded out of the cavity due to grease overflow in the cavity, and due to the fact that the device is soft and tough in material and zero in pressure, the pressure at the oil discharge pipe just conforms to the pressure direction from inside to outside, so that the fluidity in a lubricating oil system can be enhanced, and the lubricating oil can be matched with the system.

Description

Technical Field

[0001] The invention relates to the technical field of coal mills, and in particular to a device for preventing and discharging lubricating grease from a separator of a coal mill. Background Art

[0002] During the long-term use of the coal mill separator, the grease in the area from the lower end face of the lower bearing to the lower bearing pressure ring rarely flows. Combined with the pseudo-gel properties of lithium-based grease, under the action of gravity, impurities remaining in the grease, such as fine coal powder and dust, will sink. When they accumulate to a certain extent, they will be blocked again. After blockage, the quality of the grease will decline again, forming a vicious circle, affecting the bearing lubrication and causing the upper and lower bearings to be overheated. Summary of the invention

[0003] In view of the problem in the prior art that during long-term use of the separator of the coal mill, impurities in the grease sink, resulting in excessively high temperatures of the upper and lower bearings, the present invention is proposed.

[0004] Therefore, the object of the present invention is to provide a coal mill separator grease anti-blocking discharge device, the purpose of which is to enable the grease to flow smoothly and facilitate maintenance by personnel.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: including an upper connecting pipe, a lower connecting pipe arranged below the upper connecting pipe, a connecting assembly arranged between the upper connecting pipe and the lower connecting pipe, a lubricating assembly arranged on the connecting assembly, and a stabilizing assembly arranged on the connecting assembly. The upper connecting pipe and the lower connecting pipe are connected by the connecting assembly, and the lubricating assembly cooperates to enable grease to flow smoothly in the connecting assembly, thereby reducing the number of grease blockages. The state of the connecting assembly is then fixed by the stabilizing assembly, thereby facilitating the installation and disassembly of the device by the staff, and there is no need to align the upper connecting pipe and the lower connecting pipe, thereby greatly reducing the work intensity.

[0006] As a preferred solution of the coal mill separator grease anti-blocking and discharge device described in the present invention, the upper connecting pipe includes a conveying pipe, an abutment plate arranged on the conveying pipe, a bearing arranged under the abutment plate, and a first connecting plate arranged under the bearing, and the lower connecting pipe and the upper connecting pipe have the same structure.

[0007] As a preferred solution of the coal mill separator grease anti-blocking and discharge device described in the present invention, the connecting assembly includes an outer tube wall arranged on the outside of the conveying pipe and the lower connecting pipe, a second connecting piece arranged on the outside of the outer tube wall, a first connecting bolt arranged on the second connecting piece and the first connecting piece, an inner tube wall arranged on the inner wall of the conveying pipe, and a flow cavity opened between the outer tube wall and the inner tube wall.

[0008] As a preferred solution of the coal mill separator grease anti-blocking and discharge device of the present invention, the bearing is connected to the flow cavity through the first connecting piece.

[0009] As a preferred solution of the coal mill separator grease anti-blocking and discharge device described in the present invention, the lubrication assembly is provided with a lubricating oil pump on the second connecting plate, a first oil pipe provided on the lubricating oil pump, the first oil pipe is connected to the upper bearing, a second oil pipe is provided on the lubricating oil pump, the second oil pipe is connected to the lower bearing, an oil drain pipe is provided on the side of the upper bearing away from the first oil pipe, the oil drain pipe is connected to the upper bearing, and supports are provided on the first oil pipe and the oil drain pipe.

[0010] As a preferred solution of the coal mill separator grease anti-blocking and discharge device described in the present invention, the support member includes a support block arranged on the second connecting plate, a limit block arranged at the lower part of the support block, a limit groove opened on the second connecting plate to cooperate with the limit block, and a second connecting bolt arranged on the limit block.

[0011] As a preferred solution of the coal mill separator grease anti-blocking and discharge device described in the present invention, the stabilizing component includes a fixed seat arranged on two groups of the second connecting plates, a movable seat arranged on the fixed seat, a pull rod arranged on the movable seat, a connecting sleeve arranged between the two groups of the pull rods, and a locking member arranged in the connecting sleeve to cooperate with the pull rod.

[0012] As a preferred solution of the coal mill separator grease anti-blocking and discharge device described in the present invention, the locking member includes a locking block movably arranged in the connecting sleeve, a locking groove provided on the pull rod to cooperate with the locking block, a slider provided on the locking block, a movable block provided in the connecting sleeve, a sliding groove provided on the movable block to cooperate with the slider, an adjusting bolt provided in the connecting sleeve to cooperate with the movable block, and an adjusting bolt threadedly arranged on the movable block, and the adjusting bolt is rotatably connected to the connecting sleeve.

[0013] As a preferred solution of the coal mill separator grease anti-blocking and discharge device described in the present invention, the two ends of the movable block on the upper and lower sides are provided with inclined surfaces, and the slide groove is arranged in conjunction with the inclined surfaces.

[0014] As a preferred solution of the coal mill separator grease anti-blocking and discharge device of the present invention, the outer tube wall and the inner tube wall are both made of tough materials and can be bent to a certain extent.

[0015] The beneficial effects of the present invention are as follows: through the cooperation of the first oil delivery pipe, the second oil delivery pipe and the oil discharge pipe, the grease forms a two-in-one-out mode, and the oil discharge pipe is arranged on the upper end surface of the bearing. Due to the pseudo-gel property of lithium-based grease, the grease flowing out of the oil discharge pipe is squeezed out of the cavity due to the overflow of grease in the cavity. Due to the soft and tough material and zero pressure of the device, the pressure at the oil discharge pipe just follows the pressure direction from inside to outside, so the fluidity in the lubricating oil system can be enhanced and cooperate with the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0017] Figure 1 It is a schematic diagram of the overall structure of the coal mill separator grease anti-blocking and discharge device of the present invention.

[0018] Figure 2 It is a schematic cross-sectional structure diagram of the grease anti-blocking and discharge device for the coal mill separator of the present invention.

[0019] Figure 3 It is a schematic diagram of the exploded structure of the support member of the anti-blocking and discharge device of the grease of the coal mill separator of the present invention.

[0020] Figure 4 The present invention is a schematic diagram of the flow route structure of the grease of the coal mill separator grease anti-blocking discharge device.

[0021] Figure 5 It is a schematic structural diagram of the stabilizing assembly of the anti-blocking and discharge device of the grease of the coal mill separator of the present invention.

[0022] Figure 6 It is a schematic diagram of the cross-sectional structure of the connecting sleeve of the anti-blocking and discharge device of the grease of the coal mill separator of the present invention.

[0023] Figure 7 It is a structural schematic diagram of the locking block of the grease anti-blocking and discharge device of the coal mill separator of the present invention.

[0024] Figure 8 It is a structural schematic diagram of the movable block of the grease anti-blocking and discharge device of the coal mill separator of the present invention. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] Example 1

[0030] Reference Figure 1 and Figure 2, which is the first embodiment of the present invention, provides a coal mill separator grease anti-blocking discharge device, the device includes an upper connecting pipe 100, a lower connecting pipe 200 arranged below the upper connecting pipe 100, used to be connected to the upper connecting pipe 100 for material transportation, a connecting assembly 300 arranged between the upper connecting pipe 100 and the lower connecting pipe 200, used to connect the upper connecting pipe 100 and the lower connecting pipe 200, a lubricating assembly 400 arranged on the connecting assembly 300, used to transport grease and lubricate the connecting assembly 300, and a stabilizing assembly 500 arranged on the connecting assembly 300, used to fix the shape of the connecting assembly 300. The stable operation of the positioning device enables the installation and disassembly of the device without aligning the upper connecting tube 100 and the lower connecting tube 200, thereby reducing the work intensity of the staff and improving the work efficiency. The upper connecting tube 100 and the lower connecting tube 200 are connected by the connecting component 300, and the lubricating component 400 is used to enable the grease to flow smoothly in the connecting component 300, thereby reducing the number of grease blockages. The state of the connecting component 300 is fixed by the stabilizing component 500, and at the same time, it is convenient for the staff to install and disassemble the device, and there is no need to align the upper connecting tube 100 and the lower connecting tube 200, thereby greatly reducing the work intensity.

[0031] Among them, the upper connecting pipe 100 includes a conveying pipe 101 for the circulation of materials, an abutment plate 102 arranged on the conveying pipe 101 for abutting the bearing 103, a bearing 103 arranged under the abutment plate 102 for making the movement of the upper connecting pipe 100 smoother, and a first connecting plate 104 arranged under the bearing 103 for abutting the bearing 103, and connecting with the connecting component 300. The lower connecting pipe 200 has the same structure as the upper connecting pipe 100.

[0032] During use, when the coal mill needs to be operated, the stabilizing component 500 is loosened, and the upper connecting pipe 100 and the lower connecting pipe 200 are connected through the connecting component 300. The stabilizing component 500 extends and contracts along with the positions of the upper connecting pipe 100 and the lower connecting pipe 200. When the connection is completed, the stabilizing component 500 is tightened to keep the connecting component 300 in the current state. Grease is injected into the bearing 103 through the lubricating component 400, and the connecting component 300 is used to enable the grease below to be smoothly transferred to the top, thereby preventing impurities in the grease from being deposited in the bearing 103 below, reducing the probability of heating of the bearing 103, and maintaining long-term stable operation of the coal mill.

[0033] Example 2

[0034] Reference Figure 1-Figure 4 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that it achieves smooth flow of grease and reduces impurity deposition.

[0035] Compared with Example 1, further, the connecting assembly 300 includes an outer tube wall 301 arranged on the outside of the conveying pipe 101 and the lower connecting pipe 200, which is used to connect the upper connecting pipe 100 and the lower connecting pipe 200, a second connecting plate 302 arranged on the outside of the outer tube wall 301, which is used to cooperate with the first connecting bolt 303 to fix with the first connecting plate 104, a first connecting bolt 303 arranged on the second connecting plate 302 and the first connecting plate 104, an inner tube wall 304 arranged on the inner wall of the conveying pipe 101, which is used to connect the upper connecting pipe 100 and the lower connecting pipe 200, and a flow cavity 305 opened between the outer tube wall 301 and the inner tube wall 304 for the flow of grease.

[0036] The bearing 103 is connected to the circulation cavity 305 through the first connecting piece 104 . A hole is formed on the first connecting piece 104 . The bearing 103 is connected to the circulation cavity 305 through the hole.

[0037] Among them, the lubrication component 400 is provided with a lubricating oil pump 401 on the second connecting plate 302, which is used to pump in grease; a first oil pipe 402 is provided on the lubricating oil pump 401, the first oil pipe 402 is connected with the upper bearing 103, and is used to deliver the grease to the upper bearing 103; a second oil pipe 403 is provided on the lubricating oil pump 401, the second oil pipe 403 is connected with the lower bearing 103, and is used to deliver the grease to the lower bearing 103; an oil drain pipe 404 is provided on the side of the upper bearing 103 away from the first oil pipe 402, the oil drain pipe 404 is connected with the upper bearing 103, and is used to discharge the grease; and a support member 405 is provided on the first oil pipe 402 and the oil drain pipe 404, and is used to support the first oil pipe 402 and the oil drain pipe 404.

[0038] Among them, the support member 405 includes a support block 405a arranged on the second connecting plate 302, which is used to support the first oil delivery pipe 402 and the oil discharge pipe 404, a limit block 405b arranged at the lower part of the support block 405a, which is used to cooperate with the limit groove 405c to limit the support block 405a, a limit groove 405c opened on the second connecting plate 302 to cooperate with the limit block 405b, and a second connecting bolt 405d arranged on the limit block 405b, which is used to fix the support block 405a, the second connecting bolt 405d is rotatably connected to the support block 405a, and the second connecting bolt 405d is threadedly connected to the second connecting plate 302.

[0039] During use, when the coal mill is running, the lubricating oil pump 401 is started, and the grease is pumped into the upper and lower groups of bearings 103 through the first oil pipe 402 and the second oil pipe 403. At this time, under the action of the lubricating oil pump 401, the grease in the lower bearing 103 is squeezed, transported upward through the circulation cavity 305, enters the upper bearing 103, and is discharged from the oil drain pipe 404. Through this flow mode, impurities in the grease cannot stay in the lower bearing 103, reducing the occurrence rate of device failure.

[0040] The remaining structures are the same as those of Example 1.

[0041] Example 3

[0042] Reference Figure 1 ,as well as Figure 5-Figure 8 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that it is convenient for installation and disassembly and reduces the work intensity of the staff.

[0043] Compared with Example 2, further, the stabilization component 500 includes a fixed seat 501 arranged on two groups of second connecting plates 302, which is used to pull the movable seat 502, a movable seat 502 movably arranged on the fixed seat 501, which is used to connect the pull rod 503, a pull rod 503 arranged on the movable seat 502, which is used to cooperate with the bending of the outer tube wall 301 and the inner tube wall 304 to stretch or contract, a connecting sleeve 504 arranged between the two groups of pull rods 503, which is used to constrain the relative movement of the two groups of pull rods 503, and a locking piece 505 arranged in the connecting sleeve 504 to cooperate with the pull rod 503, which is used to control the fixation of the two groups of pull rods 503.

[0044] Among them, the locking member 505 includes a locking block 505a movably arranged in the connecting sleeve 504, which is used to cooperate with the locking groove 505b to clamp the pull rod 503, a locking groove 505b provided on the pull rod 503 to cooperate with the locking block 505a, a slider 505c provided on the locking block 505a, which is used to slide in cooperation with the sliding groove 505e, a movable block 505d provided in the connecting sleeve 504, which is used to move in cooperation with the rotation of the adjusting bolt 505g, thereby driving the sliding groove 505e to move, a sliding groove 505e provided on the movable block 505d to cooperate with the slider 505c, an adjusting bolt 505g provided in the connecting sleeve 504 to cooperate with the movable block 505d, and an adjusting bolt 505g threadedly provided on the movable block 505d, and the adjusting bolt 505g is rotatably connected to the connecting sleeve 504.

[0045] Among them, the two ends of the movable block 505d on the upper and lower sides are opened as inclined surfaces, and the sliding groove 505e is set to cooperate with the inclined surface. Through the back and forth movement of the sliding groove 505e, the slider 505c drives the locking block 505a to move back and forth, thereby controlling the clamping state of the locking block 505a and the locking groove 505b.

[0046] Among them, the outer tube wall 301 and the inner tube wall 304 are both made of tough materials and can be bent to a certain extent. The material can be selected from polytetrafluoroethylene PVC hose, which has excellent heat and cold resistance and can be used for a long time at -180 to 260°C. It is resistant to acid, alkali, and various organic solvents, is almost insoluble in all solvents, and has an extremely low friction coefficient.

[0047] When the pulverizer is in operation, the adjusting bolt 505g is loosened to drive the movable block 505d to move, and the locking piece 505 is pulled back into the movable cavity 505f through the slide groove 505e on the inclined surface. At this time, the locking block 505a is disengaged from the locking groove 505b. When the outer tube wall 301 is connected to the upper and lower groups of bearings 103 through the second connecting piece 302, the circulation cavity 305 will bend or remain unchanged according to the position state of the upper connecting pipe 100 and the lower connecting pipe 200 at this time. At this time, the pull rod 503 will also be elongated or contracted according to the state of the circulation cavity 305 at this time. At this time, the adjusting bolt 505g is tightened to drive the slide groove 505e to squeeze the slider 505c. At this time, the locking block 505a extends out and engages with the locking groove 505b, thereby fixing the relative positions of the two groups of pull rods 503 on the connecting sleeve 504 at this time, fixing the shape of the circulation cavity 305, and making the material more stable when passing through the inner tube wall 304.

[0048] The remaining structure is the same as that of Example 2.

[0049] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0050] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A coal mill separator grease anti-blocking and discharge device, characterized in that: The invention comprises an upper connecting pipe (100), a lower connecting pipe (200) arranged below the upper connecting pipe (100), a connecting assembly (300) arranged between the upper connecting pipe (100) and the lower connecting pipe (200), a lubricating assembly (400) arranged on the connecting assembly (300), and a stabilizing assembly (500) arranged on the connecting assembly (300); the upper connecting pipe (100) and the lower connecting pipe (200) are connected via the connecting assembly (300); the grease can flow smoothly in the connecting assembly (300) in cooperation with the lubricating assembly (400), thereby reducing the number of times the grease is blocked; the state of the connecting assembly (300) is then fixed via the stabilizing assembly (500), thereby facilitating the installation and disassembly of the device by the staff, and there is no need to align the upper connecting pipe (100) and the lower connecting pipe (200), thereby greatly reducing the work intensity.

2. The grease blocking and discharge device for coal mill separator according to claim 1, characterized in that: The upper connecting pipe (100) comprises a conveying pipe (101), an abutment sheet (102) arranged on the conveying pipe (101), a bearing (103) arranged under the abutment sheet (102), and a first connecting sheet (104) arranged under the bearing (103); the lower connecting pipe (200) and the upper connecting pipe (100) have the same structure.

3. The grease blocking and discharge device for coal mill separator according to claim 2, characterized in that: The connection assembly (300) comprises an outer tube wall (301) arranged outside the conveying pipe (101) and the lower connecting pipe (200), a second connecting piece (302) arranged outside the outer tube wall (301), a first connecting bolt (303) arranged on the second connecting piece (302) and the first connecting piece (104), an inner tube wall (304) arranged on the inner wall of the conveying pipe (101), and a flow cavity (305) opened between the outer tube wall (301) and the inner tube wall (304).

4. The grease blocking and discharge device for coal mill separator according to claim 3, characterized in that: The bearing (103) is connected to the circulation cavity (305) via the first connecting piece (104).

5. The device for preventing and discharging lubricating grease from a coal mill separator according to claim 4, characterized in that: The lubrication assembly (400) comprises a lubricating oil pump (401) arranged on the second connecting plate (302), a first oil delivery pipe (402) arranged on the lubricating oil pump (401), the first oil delivery pipe (402) being connected to the upper bearing (103), a second oil delivery pipe (403) arranged on the lubricating oil pump (401), the second oil delivery pipe (403) being connected to the lower bearing (103), an oil discharge pipe (404) arranged on the upper bearing (103) away from the first oil delivery pipe (402), the oil discharge pipe (404) being connected to the upper bearing (103), and a support member (405) arranged on the first oil delivery pipe (402) and the oil discharge pipe (404).

6. The device for preventing and discharging lubricating grease from a coal mill separator according to claim 5, characterized in that: The support member (405) comprises a support block (405a) arranged on the second connecting plate (302), a limit block (405b) arranged at the lower part of the support block (405a), a limit groove (405c) opened on the second connecting plate (302) and matching the limit block (405b), and a second connecting bolt (405d) arranged on the limit block (405b).

7. The device for preventing and discharging lubricating grease from a coal mill separator according to claim 6, characterized in that: The stabilizing assembly (500) comprises a fixed seat (501) arranged on two groups of the second connecting plates (302), a movable seat (502) arranged on the fixed seat (501), a pull rod (503) arranged on the movable seat (502), a connecting sleeve (504) arranged between the two groups of the pull rods (503), and a locking member (505) arranged in the connecting sleeve (504) to cooperate with the pull rod (503).

8. The device for preventing and discharging lubricating grease from a coal mill separator according to claim 7, characterized in that: The locking member (505) includes a locking block (505a) movably arranged in the connecting sleeve (504), a locking groove (505b) provided on the pull rod (503) and cooperating with the locking block (505a), a sliding block (505c) provided on the locking block (505a), a movable block (505d) provided in the connecting sleeve (504), a sliding groove (505e) provided on the movable block (505d) and cooperating with the sliding block (505c), and an adjusting bolt (505g) provided in the connecting sleeve (504) and cooperating with the movable block (505d); and an adjusting bolt (505g) threadedly arranged on the movable block (505d), and the adjusting bolt (505g) is rotatably connected to the connecting sleeve (504).

9. The device for preventing and discharging lubricating grease from a coal mill separator according to claim 8, characterized in that: Both ends of the movable block (505d) on the upper and lower sides are provided with inclined surfaces, and the sliding groove (505e) is arranged in coordination with the inclined surfaces.

10. The grease blocking and discharge device for coal mill separator according to claim 9, characterized in that: The outer tube wall (301) and the inner tube wall (304) are both made of tough materials and can be bent to a certain extent.

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