A water spraying amount regulating mechanism of a vertical mill and an operating method thereof

Abstract

The present invention discloses a water spraying amount regulating mechanism of a vertical mill and an operating method thereof, and belongs to the technical field of water spraying of vertical mills. A water spraying amount regulating mechanism of a vertical mill comprises a range control motor and a flow control motor, wherein the output end of the range control motor is fixedly connected with a bracket, a fixed sleeve is fixedly connected with the side wall of the bracket, a water spraying pipe is sleeved in the fixed sleeve, and the water spraying pipe is connected to the flow control motor through a gear. The present invention flexibly connects the water spraying pipe to the bracket, which can disperse the water spraying position, and utilizes the range control motor to drive the bracket to rotate, so as to further expand the water spraying range of the water spraying pipe and improve the uniformity of the water spraying. The second bevel gear is meshed with the first bevel gear, and the flow control motor is utilized to drive the water spraying pipe to rotate in the fixed sleeve, and the control gear and the inner teeth work together to realize the change of the size of the water spraying port of the water spraying pipe, thereby changing the water spraying amount of the water spraying pipe.

Description

Technical Field

[0001] The invention relates to the technical field of vertical mill water spraying, in particular to a vertical mill water spraying amount regulating mechanism and an operating method thereof. Background Art

[0002] The current mill spray device is made by drilling a one-inch pipe. Due to the small diameter of the drill hole (5mm), it is easy to cause foreign matter to block the pipe in actual application, the pressure of the water spray pipe becomes smaller, and the wear is large, which in turn affects the smooth operation of the mill production.

[0003] A Chinese patent with publication number CN217341770U discloses a water spraying device for a mill. Through the operation of a first water pump, water in a first water tank is transferred into a connecting pipe through the first water pump, then transferred into a water spraying pipe through the connecting pipe, and finally sprayed out through a nozzle. The nozzle is a flat duckbill type. When spraying, the pressure of the water flow is increased. The patent adopts a single-point water spraying, and the water spraying amount is uneven.

[0004] A Chinese patent with publication number CN214974458U discloses a vertical mill with a water spray device for stabilizing the raw material vertical abrasive layer. By setting up the water spray device, the "fine powder" and "ultrafine powder" in the material can be dispersed in the material on the grinding disc under the action of spraying, thereby ensuring the stability of the material layer; the water spray device includes multiple water spray pipes, which can provide a larger spray range and obtain a better dispersion effect. The patent adopts multi-point fixed spraying, which improves the uniformity, but it is difficult to implement large-scale water spraying. Summary of the invention

[0005] The purpose of the present invention is to provide a water spray amount adjustment mechanism for a vertical mill and an operating method thereof. By movably connecting a water spray pipe on a bracket, the water spray position can be dispersed, and the bracket is driven to rotate by a range control motor to further expand the water spray range of the water spray pipe and improve the uniformity of the water spray. The second bevel gear is meshed with the first bevel gear, and the flow control motor is used to drive the water spray pipe to rotate in a fixed sleeve, cooperating with the control gear and the internal gear to achieve the change in the size of the water spray port of the water spray pipe, thereby changing the water spray amount of the water spray pipe, thereby solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a water spray volume adjustment mechanism for a vertical mill, comprising a range control motor and a flow control motor, wherein the output end of the range control motor is fixedly connected to a bracket, a fixed sleeve is fixedly connected to the side wall of the bracket, a water spray pipe is sleeved in the fixed sleeve, the water spray pipe is connected to the flow control motor through a gear, an adjustment plate is arranged at one end of the water spray pipe, and the adjustment plate is meshed with the fixed sleeve.

[0007] Preferably, the bracket is provided with at least three legs, and a first fixing ring is provided on the legs. A fixing sleeve is fixedly connected to the outer wall of the first fixing ring. The fixing sleeve and the first fixing ring are jointly connected to the water spray pipe. The fixing sleeve drives the water spray pipe to rotate with the bracket, changes the water spraying position of the water spray pipe, and expands the spraying range of the water spray pipe. Second fixing rings are provided at the upper and lower ends of the bracket.

[0008] Preferably, the output end of the flow control motor is fixedly connected to a rotating shaft, the rotating shaft passes through the second fixed ring, the rotating shaft is movably connected to the second fixed ring, the rotating shaft rotates within the second fixed ring, the rotating shaft is fixedly connected to a first bevel gear, and the first bevel gear is placed inside the bracket.

[0009] Preferably, one end of the water spray pipe placed inside the bracket is fixedly connected to a second bevel gear, the second bevel gear is meshed with the first bevel gear, and the flow control motor drives the first bevel gear on the rotating shaft to rotate, thereby changing the water spray volume in the water spray pipe.

[0010] Preferably, a mounting groove is provided at one end of the water spray pipe close to the adjustment plate, and a movable hole is provided on the side wall of the mounting groove.

[0011] Preferably, a gear shaft is provided at one end of the adjusting plate, and both ends of the gear shaft are movably connected to the movable hole. The gear shaft is placed in the position of the mounting groove and is fixedly connected to a control gear. The adjusting plate rotates around the movable hole through the gear shaft to adjust the water spraying amount of the water spray pipe. Five adjusting plates are provided, and the five adjusting plates are spliced ​​into a circular structure. When no water is sprayed, the water outlet of the water spray pipe is closed by the adjusting plate, which can prevent abrasives from entering the water spray pipe and clogging the water spray pipe.

[0012] Preferably, the end of the fixed sleeve away from the bracket is fixedly connected to a limiting plate, and notches are provided on the limiting plate at equal distances. The notches are provided with internal teeth, and the limiting plate is engaged with the mounting groove to fix the sleeve position of the water spray pipe and prevent the water spray pipe from being misaligned with the fixed sleeve. The notches correspond to the positions of the gear shafts one by one, and the internal teeth are engaged with the control gear.

[0013] Preferably, a water distribution pipe is sleeved on the rotating shaft, and the water distribution pipe is provided with output ends having the same number as the water spray pipes, and a rotating joint is provided at the output end of the water distribution pipe, and the rotating joint is connected to one end of the water spray pipe provided with a second bevel gear, and a water inlet pipe is connected to one side of the water distribution pipe, and when the bracket rotates, the water distribution pipe rotates accordingly.

[0014] Preferably, the range control motor and the flow control motor are both provided with motor covers on the outside, which are fixed at the center of the grinding disc of the vertical mill to protect the range control motor and the flow control motor. A protective cover is provided on the outside of the bracket to protect the gears in the bracket to ensure that the gears can work normally.

[0015] Another technical problem to be solved by the present invention is to provide an operating method of a water spraying amount regulating mechanism of a vertical mill, comprising the following steps:

[0016] Step 1: Turn on the flow control motor, drive the water spray pipe to rotate through the gear, and the adjustment plate opens the blocked water spray port of the water spray pipe. The size of the opening is adjusted according to the rotation angle of the water spray pipe, and the water spray pipe sprays water into the vertical mill;

[0017] Step 2: The range control motor works, driving the bracket to rotate as a whole, and the fixed sleeve drives the water spray pipe to rotate, and the water spray range of the water spray pipe is expanded. The range control motor can rotate unidirectionally all the time, or reciprocate within 120°, and can expand the water spray range to 360°.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The water spray pipe is movably connected to the bracket to disperse the water spray position. The range control motor is used to drive the bracket to rotate, further expanding the water spray range of the water spray pipe and improving the uniformity of the water spray. The second bevel gear is meshed with the first bevel gear, and the flow control motor is used to drive the water spray pipe to rotate in the fixed sleeve, cooperating with the control gear and the internal gear to achieve the change of the size of the water spray port of the water spray pipe, thereby changing the water spray volume of the water spray pipe, and multiple water spray pipes are adjusted in a unified manner for easy control. When water spraying is not needed, the adjustment plate can completely close the water spray pipe to avoid the water spray pipe being blocked by abrasives, thereby extending the service life of the water spray pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The overall structure diagram of the water spraying amount regulating mechanism of the vertical mill of the present invention;

[0021] Figure 2 This is a connection structure diagram of the range control motor and the flow control motor of the present invention;

[0022] Figure 3 For the present invention Figure 2 Exploded view;

[0023] Figure 4 The overall structure diagram of the range control motor of the present invention;

[0024] Figure 5 It is a partial exploded view of the water spray pipe of the present invention;

[0025] Figure 6 This is a structural diagram of the water spray pipe and bracket connection of the present invention.

[0026] In the figure: 1. range control motor; 11. bracket; 111. first fixing ring; 112. second fixing ring; 12. fixing sleeve; 121. limit plate; 1211. notch; 1212. inner teeth; 13. protective cover; 2. flow control motor; 21. rotating shaft; 22. first bevel gear; 23. water distribution pipe; 231. rotating joint; 232. water inlet pipe; 3. motor cover; 4. water spray pipe; 41. second bevel gear; 42. mounting groove; 421. movable hole; 43. adjustment plate; 431. gear shaft; 432. control gear. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In order to solve the existing problems of single-point water spraying, uneven water spraying and difficulty in implementing large-scale water spraying, please refer to Figure 1-Figure 6 , this embodiment provides the following technical solutions:

[0029] A water spraying amount regulating mechanism of a vertical mill comprises a range control motor 1 and a flow control motor 2. Motor covers 3 are arranged outside the range control motor 1 and the flow control motor 2. The motor covers 3 are fixed at the center of the grinding disc of the vertical mill to protect the range control motor 1 and the flow control motor 2 and fix the positions of the range control motor 1 and the flow control motor 2.

[0030] In order to increase the range of water spraying, the output end of the range control motor 1 passes through the motor cover 3 and is fixedly connected with a bracket 11. The bracket 11 is provided with at least three legs, and a first fixed ring 111 is provided on the leg. A fixed sleeve 12 is fixedly connected to the outer wall of the first fixed ring 111. A water spray pipe 4 is sleeved in the fixed sleeve 12. The fixed sleeve 12 drives the water spray pipe 4 to rotate with the bracket 11, changes the water spraying position of the water spray pipe 4, and expands the spraying range of the water spray pipe 4. A protective cover 13 is provided on the outside of the bracket 11. The protective cover 13 protects the gears in the bracket 11 to ensure that the gears can work normally.

[0031] To realize unified flow control, a rotating shaft 21 is fixedly connected to the output end of the flow control motor 2. In order to fix the position of the rotating shaft 21, a second fixing ring 112 is provided at the upper and lower ends of the bracket 11. The rotating shaft 21 passes through the second fixing ring 112 and is movably connected to the second fixing ring 112. A first bevel gear 22 is fixedly connected to the rotating shaft 21. The first bevel gear 22 is placed inside the bracket 11. The water spray pipe 4 passes through the first fixing ring 111, and one end of the water spray pipe 4 placed inside the bracket 11 is fixedly connected to the second bevel gear 41. The second bevel gear 41 is connected to the second bevel gear 41. The first bevel gear 22 is meshed, and the flow control motor 2 drives the first bevel gear 22 on the rotating shaft 21 to rotate. The first bevel gear 22 drives the second bevel gear 41 to rotate, that is, drives the water spray pipe 4 to rotate in the fixed sleeve 12, and changes the water spraying amount in the water spray pipe 4. The diameter of the second bevel gear 41 is smaller than the first bevel gear 22. According to needs, multiple second bevel gears 41 can be arranged to be distributed along the first bevel gear 22. When the first bevel gear 22 is working, it synchronously drives all the second bevel gears 41 to rotate, and synchronously adjusts the water spraying amount of all the water spray pipes 4 to facilitate control.

[0032] One end of the water spray pipe 4 away from the second bevel gear 41 is movably connected with an adjusting plate 43 for adjusting the size of the water spray outlet. The adjusting plate 43 moves along the end of the water spray pipe 4. A sealing strip can be provided on the edge of the adjusting plate 43. In the present embodiment, five adjusting plates 43 are provided. The five adjusting plates 43 are spliced ​​into a circular structure. When no water is sprayed, the water outlet of the water spray pipe 4 is closed by the adjusting plate 43, so as to prevent abrasives from entering the water spray pipe 4 and clogging the water spray pipe 4. A gear shaft 431 is provided at one end of the adjusting plate 43. An installation groove 42 is provided at one end of the water spray pipe 4 close to the adjusting plate 43. A movable hole 421 is provided on the side wall of the installation groove 42. The gear shaft 431 is inserted from the end of the water spray pipe 4 to the installation groove 42. In the mounting groove 42, both ends of the gear shaft 431 are movably connected with the movable hole 421. The gear shaft 431 is placed at the position of the mounting groove 42 and is fixedly connected with a control gear 432. The setting of the control gear 432 can prevent the adjustment plate 43 from being separated from the water spray pipe 4. The adjustment plate 43 rotates around the movable hole 421 through the gear shaft 431. The rotation angle of the adjustment plate 43 affects the opening and closing size of the water spray port of the water spray pipe 4. When the blocking area of ​​the water spray port of the water spray pipe 4 by the adjustment plate 43 is small, the water spray volume of the water spray pipe 4 is large. On the contrary, when the blocking area of ​​the water spray port of the water spray pipe 4 by the adjustment plate 43 is large, the water spray volume of the water spray pipe 4 is small. The water spray pipe 4 is rotated to drive the adjustment plate 43 to rotate, thereby adjusting the water spray volume of the water spray pipe 4.

[0033] The end of the fixed sleeve 12 away from the bracket 11 is fixedly connected to the limit plate 121, and the limit plate 121 is provided with notches 1211 at equal distances, and the notches 1211 are provided with internal teeth 1212. The limit plate 121 is engaged with the mounting groove 42 to achieve the fixed sleeve position of the water spray pipe 4 to prevent the water spray pipe 4 from being misaligned with the fixed sleeve 12. The notches 1211 correspond to the positions of the gear shaft 431 one by one. The notches 1211 are for limiting the moving path of the control gear 432, and the internal teeth 1212 are engaged with the control gear 432. When the fixed sleeve 12 is fixed in position, the second bevel gear 41 drives the water spray pipe 4 to rotate, and the water spray pipe 4 drives the adjustment plate 43 connected thereto to rotate. At this time, the control gear 432 follows the displacement. Under the control of the inner tooth 1212, the control gear 432 rotates, the position of the adjustment plate 43 changes, and the size of the water spray port of the water spray pipe 4 changes with the position of the adjustment plate 43. The first bevel gear 22 drives all the second bevel gears 41 to rotate at the same time, and the size of the water spray port of the water spray pipe 4 is adjusted at the same time.

[0034] In order to supply water to the water spray pipe 4, a water distribution pipe 23 is sleeved on the rotating shaft 21. When the rotating shaft 21 rotates, it does not affect the use of the water distribution pipe 23. A rotating joint 231 is provided at the output end of the water distribution pipe 23. The rotating joint 231 is connected to one end of the water spray pipe 4 provided with a second bevel gear 41. A water inlet pipe 232 is connected to one side of the water distribution pipe 23. The water inlet pipe 232 is connected to an external water pipe. The external water pipe adopts a hose structure, which can supply water normally when the bracket 11 rotates. The water inlet pipe 232 passes through the protective cover 13. When the bracket 11 rotates, the water distribution pipe 23 rotates accordingly.

[0035] In order to better demonstrate the operation process of the water spraying amount regulating mechanism of the vertical mill, this embodiment now proposes an operation method of the water spraying amount regulating mechanism of the vertical mill, including the following steps:

[0036] Step 1: Connect the water inlet pipe 232 to the water pipe. When water spraying is required, turn on the flow control motor 2 to drive the rotating shaft 21 to rotate. The second bevel gear 41 drives the first bevel gear 22 to rotate. The water spray pipe 4 rotates in the fixed sleeve 12. The position of the inner gear 1212 is fixed. The displacement control gear 432 is pushed to rotate by the inner gear 1212. The adjustment plate 43 opens the water spray port blocked by the water spray pipe 4. The size of the opening is adjusted according to the rotation angle of the water spray pipe 4. The water inlet pipe 232 introduces water into the water distribution pipe 23, and the water distribution pipe 23 evenly distributes the water to the water spray pipe 4. The water spray pipe 4 sprays water into the vertical mill.

[0037] Step 2: The range control motor 1 works, driving the bracket 11 to rotate as a whole, and the fixed sleeve 12 drives the water spray pipe 4 to rotate, and the water spray range of the water spray pipe 4 is expanded. The range control motor 1 can rotate unidirectionally all the time, or reciprocate within 120°, and can expand the water spray range to 360°.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A water spraying amount regulating mechanism for a vertical mill, comprising a range control motor (1) and a flow control motor (2), characterized in that: The output end of the range control motor (1) is fixedly connected to a bracket (11), a fixing sleeve (12) is fixedly connected to the side wall of the bracket (11), a water spray pipe (4) is sleeved in the fixing sleeve (12), the water spray pipe (4) is connected to the flow control motor (2) through a gear, an adjustment plate (43) is arranged at one end of the water spray pipe (4), and the adjustment plate (43) is meshed with the fixing sleeve (12); an installation groove (42) is provided at one end of the water spray pipe (4) close to the adjustment plate (43), a movable hole (421) is provided on the side wall of the installation groove (42), and one end of the adjustment plate (43) is provided with a movable hole (421). A gear shaft (431) is provided at one end, and both ends of the gear shaft (431) are movably connected to the movable hole (421). The gear shaft (431) is fixedly connected to a control gear (432) at a position where the mounting groove (42) is located; one end of the fixing sleeve (12) away from the bracket (11) is fixedly connected to a limiting plate (121), notches (1211) are provided on the limiting plate (121) at equal distances, and inner teeth (1212) are provided on the notches (1211), the limiting plate (121) is engaged with the mounting groove (42), and the inner teeth (1212) are meshed with the control gear (432); The support (11) is provided with at least three legs, a first fixing ring (111) is provided on the legs, a fixing sleeve (12) is fixedly connected to the outer wall of the first fixing ring (111), the fixing sleeve (12) and the first fixing ring (111) are jointly sleeved on the water spray pipe (4), and the upper and lower ends of the support (11) are both provided with a second fixing ring (112); The output end of the flow control motor (2) is fixedly connected to a rotating shaft (21), the rotating shaft (21) passes through the second fixing ring (112), the rotating shaft (21) and the second fixing ring (112) are movably connected, the rotating shaft (21) rotates in the second fixing ring (112), and the rotating shaft (21) is fixedly connected to a first bevel gear (22); one end of the water spray pipe (4) disposed inside the bracket (11) is fixedly connected to a second bevel gear (41), and the second bevel gear (41) is meshed with the first bevel gear (22); A water distribution pipe (23) is sleeved on the rotating shaft (21), the water distribution pipe (23) is provided with output ends having the same number as the water spray pipes (4), the output end of the water distribution pipe (23) is provided with a rotating joint (231), and the rotating joint (231) is connected to one end of the water spray pipe (4) provided with a second bevel gear (41).

2. The water spraying amount regulating mechanism of the vertical mill according to claim 1, characterized in that: The range control motor (1) and the flow control motor (2) are both provided with motor covers (3) on the outside, the motor covers (3) are connected to the grinding disc of the vertical mill, and the bracket (11) is provided with a protective cover (13) on the outside.

3. A method for operating the water spraying amount regulating mechanism of a vertical mill according to any one of claims 1 to 2, characterized in that: The following steps are involved: Step 1: Turn on the flow control motor (2), drive the water spray pipe (4) to rotate through the gear, and the regulating plate (43) opens the blocked water spray port of the water spray pipe (4). The size of the opening is adjusted according to the rotation angle of the water spray pipe (4), and the water spray pipe (4) sprays water into the vertical mill; Step 2: The range control motor (1) works, drives the bracket (11) to rotate as a whole, and the fixed sleeve (12) drives the water spray pipe (4) to rotate, and the water spray range of the water spray pipe (4) is expanded.

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