Ball mill protection device

Abstract

The utility model relates to the technical field of ball mills, in particular to a ball mill protection device which comprises a ball mill body, the ball mill body comprises a barrel rotationally arranged on the working ground, shaft heads communicated with the interior of the barrel are arranged at the two ends of the barrel, and two bearing seats are oppositely arranged on the working ground. The two bearing pedestals are each provided with a bearing bush and a temperature measuring detector, the two bearing bushes are rotationally connected with the two shaft heads correspondingly, and the two temperature measuring detectors are both used for detecting the real-time temperature of the bearing bushes. The protection device for the ball mill can detect the real-time temperature of the bearing bush, and when the temperature of the bearing bush is too high, the cylinder body, the shaft head and the bearing bush stop running, so that damage to equipment parts is avoided, and the ball mill can always work normally.

Description

Technical Field

[0001] The utility model relates to the technical field of ball mills, in particular to a ball mill protection device. Background Art

[0002] Bearings are crucial components of ball mills. They are typically installed on the mill body and bearing housing, utilizing engine oil lubrication to ensure proper bearing operation. Excessive bearing temperatures can cause the bearings (made of babbitt alloy) to burn, leading to a loss of coordination between the bearing and the shaft. This can cause wear on the mill's shaft end, increasing maintenance costs and impacting normal mill operation.

[0003] The common method for measuring bearing temperature currently requires cutting off the power supply of the ball mill, that is, shutting down the ball mill, before measuring the bearing temperature. However, this greatly affects the working efficiency of the ball mill. Therefore, a ball mill protection device is urgently needed to solve the above problem. Utility Model Content

[0004] In order to solve the technical problem that the temperature of the bearing can only be measured after the ball mill is shut down, the utility model provides a ball mill protection device that can detect the real-time temperature of the bearing. When the temperature of the bearing is too high, the cylinder, shaft head and bearing stop running, thereby avoiding damage to equipment parts and ensuring that the ball mill can always work normally.

[0005] The utility model provides a ball mill protection device, including a ball mill body, the ball mill body including a cylinder rotatably set on a working surface, both ends of the cylinder are provided with shaft heads connected to the interior of the cylinder, two bearing seats are relatively arranged on the working surface, the two bearing seats are provided with bearing shells and temperature detectors, the two bearing shells are respectively rotatably connected to the two shaft heads, and the two temperature detectors are used to detect the real-time temperature of the bearing shells. When the cylinder rotates, the mixed material enters the interior of the cylinder through one shaft head, and after the cylinder rotates, the mixed material is crushed, and then the crushed mixed material is discharged from the interior of the cylinder through the other shaft head. When the cylinder rotates, the two shaft heads rotate on the two bearing shells respectively, and the two temperature detectors detect the real-time temperature of the two bearing shells.

[0006] Furthermore, the ball mill protection device also includes a unloading mechanism, which includes a material box arranged on the working ground and located on the side of the cylinder, a material pipeline fixedly connected to the material box and a first valve provided on the material pipeline, an end of an axis head close to the material box extends into the interior of the material box and is fixedly connected to the material spoon, and a material channel connected to the axis head is provided on the material spoon.

[0007] Furthermore, the unloading mechanism also includes a material trough and a silo arranged on the working ground and located above the material box, the end of the material pipeline away from the material box is fixedly connected to the material trough, the liquid pipeline and the unloading pipeline are fixedly connected to the material trough, and a second valve is provided at the unloading port of the silo and the second valve is fixedly connected to the end of the unloading pipeline away from the material trough.

[0008] Furthermore, a flow channel cover is fixedly connected to the material trough, and one end of the liquid pipeline and the material discharge pipeline are fixedly connected to the flow channel cover and communicate with the material trough. The purpose of setting the flow channel cover is to facilitate the fixing of the liquid pipeline and the material discharge pipeline on the material trough.

[0009] Furthermore, a connection port is provided at the end of the discharge pipe remote from the material trough. This connection port is fixedly connected to the second valve via a connecting pipe. The width of the connecting pipe gradually decreases from the end closest to the second valve to the end remote from the second valve. The connection port and the connecting pipe cooperate to facilitate the fixed connection between the second valve and the discharge pipe. The connecting pipe meets the requirements for rapid material discharge.

[0010] Furthermore, each of the bearing seats includes a first seat body and a second seat body that are fixedly connected, each of the bearing shells includes a first semicircular bearing shell and a second semicircular bearing shell that are fixedly connected, and the first semicircular bearing shell and the second semicircular bearing shell are arranged between the first seat body and the second seat body, and each of the shaft heads is rotatably connected to the first semicircular bearing shell and the second semicircular bearing shell; each of the temperature detectors is arranged on the first seat body or the second seat body.

[0011] Furthermore, a base is provided on the work surface, and the two bearing seats are provided on the base; the cylinder is provided with a feed port and a discharge port, and the two shaft heads are respectively provided at the feed port and the discharge port through end caps, and the two shaft heads are provided with a material hole, and both of the material holes are connected to the interior of the cylinder. The mixed material enters the interior of the cylinder through the material hole on one shaft head, and after the cylinder rotates, the mixed material is crushed, and then the crushed mixed material is discharged from the interior of the cylinder through the material hole on the other shaft head.

[0012] The ball mill body further includes a drive mechanism comprising a first gear, a second gear, and a drive motor mounted on a base. The first gear is fixedly connected to an end cap at the discharge port, and the output shaft of the drive motor is fixedly connected to the second gear. The first and second gears mesh with each other. When the drive motor is activated, the first and second gears rotate, thereby rotating the cylinder and the two shaft ends.

[0013] Further, a gear base is arranged on the base, the gear base is rotationally connected with the rotating shaft, the second gear is fixedly connected on the rotating shaft, and the end of the rotating shaft is fixedly connected with the output shaft of the driving motor through a shaft coupling. The arrangement of the gear base and the rotating shaft makes the second gear more stable when rotating.

[0014] Further, a protective cover is arranged on the base, the protective cover covers the first gear and the second gear. The protective cover protects the first gear and the second gear.

[0015] Compared with the prior art, the utility model has the following technical effects:

[0016] The cylinder rotates, the mixed material enters into the inside of the cylinder through one shaft head, the mixed material is crushed after the cylinder rotates, and then the crushed mixed material is discharged from the inside of the cylinder through another shaft head. When the cylinder rotates, the two shaft heads rotate on the two bearing bushes respectively, and the two temperature measuring detectors detect the real-time temperature of the two bearing bushes. When the temperature of the bearing bush is too high, the cylinder, the shaft head and the bearing bush stop running, so that the damage of the equipment parts is avoided, and it is ensured that the ball mill can always work normally. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of a ball mill protection device of the utility model;

[0018] Figure 2 is a structural schematic view of the bearing bush installed on the bearing seat of the utility model;

[0019] Figure 3 is a structural schematic view of a driving mechanism of the utility model;

[0020] Reference numerals in the drawings are:

[0021] 1, cylinder; 11, end cover; 2, shaft head; 3, bearing seat; 4, bearing bush; 5, temperature measuring detector; 6, discharging mechanism; 61, material box; 62, material pipeline; 621, first valve; 63, material spoon; 64, material groove; 641, discharging pipeline; 642, liquid pipeline; 65, material bin; 651, second valve; 66, connecting pipeline; 67, flow channel cover; 7, base; 8, driving mechanism; 81, first gear; 82, second gear; 83, driving motor; 84, gear base; 85, rotating shaft; 86, protective cover; 9, display. DETAILED DESCRIPTION

[0022] The utility model is further illustrated below in combination with the drawings and specific embodiments.

[0023] For example, Figures 1 to 3As shown, a ball mill protection device includes a ball mill body, which includes a cylinder 1 that is rotatably mounted on a work surface. The structure of the cylinder 1 is conventional and will not be further described here. Generally, a certain number of steel balls are loaded into the cylinder 1 as grinding media. A shaft head 2 is provided at each end of the cylinder 1, connected to the interior of the cylinder 1. Two bearing blocks 3 are disposed opposite each other on the work surface. Each of the bearing blocks 3 is provided with a bearing shell 4 and a temperature detector 5. The two bearing shells 4 are rotatably connected to the two shaft heads 2, respectively. The two temperature detectors 5 are used to detect the real-time temperature of the bearing shells 4. As the cylinder 1 rotates, a mixture (mixed zinc oxide and clear liquid, i.e., mixed ore slurry) enters the cylinder 1 through one shaft head 2. After the cylinder 1 rotates, the mixture is crushed and then discharged from the cylinder 1 through the other shaft head 2. As the cylinder 1 rotates, the two shaft heads 2 rotate on the two bearing shells 4, respectively, and the two temperature detectors 5 detect the real-time temperature of the two bearing shells 4. In this embodiment, when the alarm temperature of the temperature detector 5 is set to 55°C, when the temperature of the bearing 4 reaches above 55°C, the temperature detector 5 will sound an alarm to remind nearby staff to prepare corresponding response measures. The staff can shut down the ball mill body. Generally, the ball mill will be shut down only after the internal material is emptied. The cylinder 1, the shaft head 2 and the bearing 4 will stop running, thereby avoiding damage to equipment parts.

[0024] The ball mill protection device of this embodiment can detect the real-time temperature of the bearing 4. When the temperature of the bearing 4 is too high, the cylinder 1, the shaft head 2 and the bearing 4 stop running, thereby avoiding damage to equipment parts and ensuring that the ball mill can always work normally.

[0025] As an embodiment, the ball mill protection device further includes a material discharge mechanism 6, which includes a material box 61 disposed on the work surface and located to the side of the cylinder 1. A material pipe 62 is fixedly connected to the material box 61, and a first valve 621 is provided on the material pipe 62. The end of a shaft head 2 near the material box 61 extends into the interior of the material box 61 and is fixedly connected to a material spoon 63. The material spoon 63 is provided with a material channel connected to the shaft head 2. When the first valve 621 is opened, the mixed material enters the material box 61 through the material pipe 62. The material box 61 stores the mixed material. When the cylinder 1 rotates, the two shaft heads 2 rotate on the two bearing bushes 4 respectively, and the material spoon 63 also rotates. After the material spoon 63 rotates, the mixed material in the material box 61 can enter the interior of the cylinder 1 through the material channel and the one shaft head 2.

[0026] Furthermore, an observation notch is provided on the material box 61. The observation notch is for conveniently observing the mixed material in the material box 61.

[0027] As an implementable mode, the discharging mechanism 6 further comprises a material tank 64 and a material bin 65 arranged on the working ground and above the material box 61, and the material pipe 62 is fixedly connected with the material tank 64 at the end away from the material box 61, the liquid pipe 642 and the discharging pipe 641 are fixedly connected with the material tank 64, and the second valve 651 is arranged at the discharging opening of the material bin 65 and is fixedly connected with the end of the discharging pipe 641 away from the material tank 64.

[0028] The material (zinc oxide) is stored in the material bin 65, the second valve 651 is opened, the material enters the material tank 64 through the discharging pipe 641, and the external liquid (for example, clear liquid) enters the material tank 64 through the liquid pipe 642, the material and the liquid are mixed in the material tank 64 to form a mixed material, and then the mixed material enters the material box 61 through the material pipe 62.

[0029] Further, the first valve 621 and the second valve 651 are both automatic plug valves.

[0030] As an implementable mode, the material tank 64 is fixedly connected with a flow tank cover 67, and one end of the liquid pipe 642 and the discharging pipe 641 are fixedly connected with the flow tank cover 67 and are in communication with the material tank 64. The flow tank cover 67 is arranged to facilitate the fixation of the liquid pipe 642 and the discharging pipe 641 on the material tank 64.

[0031] As an implementable mode, the end of the discharging pipe 641 away from the material tank 64 is provided with a connecting opening, the connecting opening is fixedly connected with the second valve 651 through a connecting pipe 66, and the width of the connecting pipe 66 gradually decreases from the end close to the second valve 651 to the end away from the second valve 651. The connecting opening and the connecting pipe 66 cooperate to facilitate the fixed connection of the second valve 651 and the discharging pipe 641. The connecting pipe 66 meets the rapid discharging requirement of the material.

[0032] As an implementable mode, each bearing seat 3 comprises a first seat body and a second seat body fixedly connected through a bolt and a nut, each bearing bush 4 comprises a first half-circle bearing bush and a second half-circle bearing bush (not shown in the figure) fixedly connected through a bolt and a nut, and the first half-circle bearing bush and the second half-circle bearing bush are arranged between the first seat body and the second seat body, each shaft head 2 is rotationally connected with the first half-circle bearing bush and the second half-circle bearing bush, that is, the shaft head 2 rotates on the first half-circle bearing bush and the second half-circle bearing bush, and each temperature measuring detector 5 is arranged on the first seat body or the second seat body.

[0033] As an implementable mode, the working surface is provided with a base 7, the barrel 1 is rotationally arranged on the base 7, and the two bearing housings 3 are arranged on the base 7. The side surface of the base 7 is provided with a display 9, and the display 9 can display the temperature detected by the temperature detection probe 5.

[0034] As an implementable mode, the barrel 1 is provided with an inlet and an outlet, the two shaft heads 2 are respectively arranged at the inlet and the outlet through end covers 11, the end covers 11 are sealingly and fixedly connected between the two end covers 11 and the inlet and the outlet, the two shaft heads 2 are both provided with material holes (not shown in the figure), and the two material holes are both connected with the inside of the barrel 1. The mixed material enters the inside of the barrel 1 through the material hole on one shaft head 2, is crushed after the rotation of the barrel 1, and then the crushed mixed material is discharged from the inside of the barrel 1 through the material hole on the other shaft head 2.

[0035] Further, the material hole on the shaft head 2 at the outlet is connected with a discharge pipeline, and the discharge pipeline facilitates the discharge of the mixed material from the inside of the barrel 1.

[0036] As an implementable mode, the ball mill body further comprises a driving mechanism 8, the driving mechanism 8 comprises a first gear 81, a second gear 82 and a driving motor 83 arranged on the base 7, the driving motor 83 is a permanent magnet motor, the first gear 81 is fixedly connected with the end cover 11 at the outlet, the output shaft of the driving motor 83 is fixedly connected with the second gear 82, and the first gear 81 and the second gear 82 are engaged. The driving motor 83 is started to drive the first gear 81 and the second gear 82 to rotate, and then drive the barrel 1 and the two shaft heads 2 to rotate.

[0037] As an implementable mode, the base 7 is provided with a gear housing 84, the bearing of the gear housing 84 is rotationally connected with a rotating shaft 85, the second gear 82 is fixedly connected in the middle of the rotating shaft 85, and the end of the rotating shaft 85 is fixedly connected with the output shaft of the driving motor 83 through a shaft coupling. The gear housing 84 and the rotating shaft 85 are arranged to make the second gear 82 more stable when rotating.

[0038] As an implementable mode, the base 7 is provided with a protective cover 86, and the protective cover 86 covers the first gear 81 and the second gear 82.

[0039] The working process of the ball mill protection device,

[0040] The material is stored in the material bin 65, the second valve 651 is opened, the material enters into the material tank 64 through the material pipe 641, and the external liquid (for example, the clear liquid) enters into the material tank 64 through the liquid pipe 642, the material and the liquid are mixed in the material tank 64 to form the mixed material; the first valve 621 is opened, the mixed material enters into the material box 61 through the material pipe 62, the mixed material is stored in the material box 61, when the barrel 1 rotates, the two shaft heads 2 rotate on the two bearing bushes 4 respectively, and the material scoop 63 also rotates, after the material scoop 63 rotates, the mixed material in the material box 61 can enter into the barrel 1 through the material channel and one shaft head 2, after the barrel 1 rotates, the mixed material is crushed, and then the crushed mixed material is discharged from the barrel 1 through the other shaft head 2.

[0041] The two temperature measuring detectors 5 detect the real-time temperature of the two bearing bushes 4, when the temperature reaches 55 DEG C, the temperature detector first issues an alarm to remind the nearby staff to prepare corresponding measures, at this time, the second valve 651 is closed, the material pipe 641 stops continuing to feed, the mixed material in the material tank 64 is transported into the material box 61, the material scoop 63 rotates to continuously scoop the mixed material into the ball mill, the crushed mixed material in the ball mill is discharged to the outside, the ball mill is emptied, and then the first valve 621 is closed.

[0042] The above-described embodiments are only preferred embodiments of the present application, and are only used to explain the present application, and are not intended to limit the scope of the present application. For those skilled in the art, of course, other embodiments can be easily obtained by replacing or changing the disclosed technical contents in the present application, therefore, any changes and improvements made on the basis of the principles and technical conditions of the present application should be included in the scope of the present application.

Claims

1. A ball mill protection device, comprising a ball mill body, wherein the ball mill body comprises a cylinder (1) rotatably arranged on a working surface, characterized in that: Both ends of the cylinder (1) are provided with shaft heads (2) connected to the interior of the cylinder (1); two bearing seats (3) are provided on the working surface in a relative manner; the two bearing seats (3) are provided with bearing bushes (4) and temperature detectors (5); the two bearing bushes (4) are rotatably connected to the two shaft heads (2) respectively; and the two temperature detectors (5) are used to detect the real-time temperature of the bearing bushes (4).

2. The ball mill protection device according to claim 1, characterized in that: The ball mill protection device further comprises a material discharge mechanism (6), the material discharge mechanism (6) comprising a material box (61) arranged on a working floor and located on the side of the cylinder (1), a material pipeline (62) fixedly connected to the material box (61), and a first valve (621) provided on the material pipeline (62), an end of a shaft head (2) close to the material box (61) extends into the interior of the material box (61) and is fixedly connected to a material spoon (63), and a material channel communicating with the shaft head (2) is provided on the material spoon (63).

3. The ball mill protection device according to claim 2, characterized in that: The unloading mechanism (6) further comprises a material trough (64) and a silo (65) arranged on a working floor and located above the material box (61); an end of the material pipe (62) away from the material box (61) is fixedly connected to the material trough (64); a liquid pipe (642) and a unloading pipe (641) are fixedly connected to the material trough (64); a second valve (651) is provided at the unloading port of the silo (65), and the second valve (651) is fixedly connected to an end of the unloading pipe (641) away from the material trough (64).

4. The ball mill protection device according to claim 3, characterized in that: The material trough (64) is fixedly connected to a flow trough cover (67), and one end of the liquid pipeline (642) and the discharge pipeline (641) are both fixedly connected to the flow trough cover (67) and communicated with the material trough (64).

5. The ball mill protection device according to claim 3, characterized in that: A connecting port is provided on the end of the discharge pipe (641) away from the material trough (64), and the connecting port is fixedly connected to the second valve (651) through a connecting pipe (66). The width of the connecting pipe (66) gradually decreases from the end close to the second valve (651) to the end away from the second valve (651).

6. The ball mill protection device according to claim 1, characterized in that: Each of the bearing seats (3) includes a first seat body and a second seat body that are fixedly connected, each of the bearing shells (4) includes a first semicircular bearing shell and a second semicircular bearing shell that are fixedly connected, and the first semicircular bearing shell and the second semicircular bearing shell are arranged between the first seat body and the second seat body, and each of the shaft heads (2) is rotatably connected to the first semicircular bearing shell and the second semicircular bearing shell; each of the temperature detectors (5) is arranged on the first seat body or the second seat body.

7. The ball mill protection device according to claim 1, characterized in that: A base (7) is provided on the working ground, and the two bearing seats (3) are provided on the base (7); a feed port and a discharge port are provided on the cylinder (1), and the two shaft heads (2) are respectively provided at the feed port and the discharge port through end covers (11); the two shaft heads (2) are provided with material holes, and the two material holes are communicated with the interior of the cylinder (1).

8. The ball mill protection device according to claim 7, characterized in that: The ball mill body further comprises a driving mechanism (8), the driving mechanism (8) comprising a first gear (81), a second gear (82) and a driving motor (83) arranged on the base (7), the first gear (81) being fixedly connected to the end cover (11) at the discharge port, the output shaft of the driving motor (83) being fixedly connected to the second gear (82), and the first gear (81) and the second gear (82) being meshed.

9. The ball mill protection device according to claim 8, characterized in that: A gear seat (84) is provided on the base (7), the gear seat (84) is rotatably connected to the rotating shaft (85), the second gear (82) is fixedly connected to the rotating shaft (85), and the end of the rotating shaft (85) is fixedly connected to the output shaft of the driving motor (83) through a coupling.

10. The ball mill protection device according to claim 8, characterized in that: A protective cover (86) is provided on the base (7), and the protective cover (86) is provided above the first gear (81) and the second gear (82).

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