Self-lubricating device for cement kiln wheel belt

Abstract

The utility model discloses a cement kiln wheel belt self-lubricating device, which belongs to the technical field of cement kiln wheel belt maintenance and comprises an intermediate shaft, an outer sleeve is arranged at the top of the intermediate shaft, a plurality of teeth are arranged on the outer sleeve, a first oil way is arranged in the intermediate shaft and communicated with an oil supply pipe, and an oil hole is formed in the intermediate shaft. The oil hole is communicated with the first oil way, a second oil way is arranged in the teeth, a third oil way is arranged in the outer sleeve, and the second oil way is communicated with the third oil way. The wheel belt base plate pushes the teeth to drive the outer sleeve to rotate, in the rotating process of the outer sleeve, when the base plate pushes a certain tooth, the first oil way is communicated with the third oil way and the second oil way through the oil hole formed in the middle shaft, namely lubricating oil can be sprayed into a gap of the base plate, and when the tooth is separated from the base plate, the first oil way is disconnected with the third oil way and the second oil way. The self-lubricating mechanism is simple in structure, accurate in spraying position and high in working efficiency, does not need a control system, and is not influenced by the rotating speed change of the cement kiln.

Description

Technical Field

[0001] The utility model relates to the technical field of cement kiln wheel belt maintenance, in particular to a cement kiln wheel belt self-lubricating device. Background Art

[0002] like Figure 1 As shown, the kiln belt 2 of the cement kiln supports the kiln shell 1 through the belt pad 3. Although the kiln belt 2 and the kiln shell belt pad 3 are in contact, there is a certain belt gap 4. During the operation of the cement rotary kiln, the kiln belt 2 rotates with the kiln shell 1 through the friction between the belt pad 3; if the lubrication between the kiln belt 2 and the belt pad 3 is poor, it may cause the kiln shell to shake, induce the damage or fall off of the refractory bricks in the kiln body, and thus cause unexpected kiln shutdown and maintenance; at the same time, it shortens the service life of the kiln shell pad. The above belt lubrication method is to spray the lubricating oil containing graphite powder into the gap between the pads, and then flow into the belt gap 4 between the belt pad 3 and the kiln belt 2.

[0003] At present, wheel tyre lubrication is done manually, and manual injection of lubricating oil has the problem of inaccurate injection. Utility Model Content

[0004] The utility model aims to provide a cement kiln wheel belt self-lubricating device to solve the problem of inaccurate injection of manual lubricating oil.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] The utility model discloses a self-lubricating device for a cement kiln wheel belt, comprising an intermediate shaft, a jacket is arranged on the top of the intermediate shaft, a plurality of teeth are arranged on the jacket, a first oil circuit is arranged inside the intermediate shaft, the first oil circuit is communicated with an oil supply pipe, an oil hole is opened on the intermediate shaft, the oil hole is communicated with the first oil circuit, a second oil circuit is arranged inside the teeth, a third oil circuit is arranged inside the jacket, the second oil circuit is communicated with the third oil circuit; when the third oil circuit is aligned with the oil hole, lubricating oil flows into the second oil circuit and is sprayed outward through the teeth.

[0007] Furthermore, the plurality of teeth are evenly distributed around the circumference.

[0008] Furthermore, the oil hole is configured as a flat fan-shaped hole.

[0009] Furthermore, a bracket is arranged below the intermediate shaft, and one end of the bracket away from the intermediate shaft is connected to the base.

[0010] Compared with the prior art, the beneficial technical effects of the utility model are:

[0011] In the utility model, the first oil circuit inside the intermediate shaft, the second oil circuit inside the tooth and the third oil circuit inside the outer sleeve constitute an autonomous lubrication mechanism, and the wheel belt pad pushes the tooth to drive the outer sleeve to rotate. During the rotation of the outer sleeve, when the pad pushes a certain tooth, the first oil circuit is connected with the third oil circuit and the second oil circuit through the oil hole opened on the intermediate shaft, and the lubricating oil can be sprayed into the gap of the pad; when the tooth is separated from the pad, the first oil circuit is disconnected from the third oil circuit and the second oil circuit. The autonomous lubrication mechanism has a simple structure, does not require a control system, is not affected by changes in the rotation speed of the cement kiln, has an accurate injection position, and has high working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model will be further described below in conjunction with the accompanying drawings.

[0013] Figure 1 It is a cross-sectional view of the installation position of the cement kiln wheel tyre pad in the prior art;

[0014] Figure 2 This is a front view of the utility model cement kiln wheel belt self-lubricating device;

[0015] Figure 3 It is a three-dimensional structural schematic diagram of the utility model cement kiln wheel belt self-lubricating device;

[0016] Figure 4 This is a cross-sectional view of the utility model cement kiln wheel belt self-lubricating device;

[0017] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0018] Explanation of the accompanying drawings: 1. Kiln shell; 2. Kiln wheel; 3. Wheel plate; 3-1. First plate; 3-2. Second plate; 4. Wheel gap; 5. Intermediate shaft; 5-1. Oil hole; 6. Outer sleeve; 7. Tooth; 7-1. First tooth; 7-2. Second tooth; 8. Oil supply pipe; 9. Bracket; 10. Base. DETAILED DESCRIPTION

[0019] like Figure 2-5As shown in the figure, an independent lubrication device for the tyre ring of a cement kiln includes an intermediate shaft 5. A jacket 6 is provided at the top of the intermediate shaft 5. A number of teeth 7 are provided on the jacket 6. A first oil passage is provided inside the intermediate shaft 5. The first oil passage is communicated with an oil supply pipe 8. An oil hole 5-1 is formed on the intermediate shaft 5. The oil hole 5-1 is communicated with the first oil passage. A second oil passage is provided inside the tooth 7. A third oil passage is provided inside the jacket 6. The second oil passage is communicated with the third oil passage. When the third oil passage is aligned with the oil hole 5-1, lubricating oil flows into the second oil passage and sprays out through the tooth 7. Specifically, the jacket 6 is rotationally connected to the intermediate shaft 5 through a bearing (including but not limited to rolling bearings, sliding bearings, etc.).

[0020] A number of the teeth 7 are circumferentially evenly distributed. The number of teeth 7 is selected as a natural number greater than or equal to 3. In this embodiment, the number of teeth 7 is six. During actual production and use, the number of teeth can be determined according to actual needs, and it can also be set to three, four, five, seven, eight, etc.

[0021] The oil hole 5-1 is set as a flat fan-shaped hole.

[0022] A bracket 9 is provided below the intermediate shaft 5. One end of the bracket 9 away from the intermediate shaft 5 is connected to a base 10. The base 10 is placed on the ground, so as to place the independent lubrication device on one side of the tyre ring of the cement kiln, facilitating the lubrication work.

[0023] As Figure 2 shown, during the rotation of the cement kiln, the first tooth 7-1 rotates together with the first backing plate 3-1 under the push of the first backing plate 3-1. During this process, the second tooth 7-2 is inserted into the gap between the first backing plate 3-1 and the second backing plate 3-2. As the cement kiln continues to rotate, the first tooth 7-1 will separate from the first backing plate 3-1, and the second tooth 7-2 will rotate together with the second backing plate 3-2 under the push of the second backing plate 3-2. In this way, the third tooth will repeat the action of the second tooth 7-2, and so on. In this way, the position information of each tyre ring backing plate 3 of the cement kiln is transmitted in a way similar to the "meshing" of gears. When the third oil passage is aligned with the oil hole 5-1, lubricating oil flows into the second oil passage and sprays out through the tooth 7, accurately spraying the lubricating oil containing graphite powder into the backing plate gap.

[0024] Tooth length = [k(L / m - S)] / 2sin(π / n) + S - R

[0025] Where k is a proportionality coefficient, 0 < k < 1; L is the inner circumference of the tyre ring, S is the length of the kiln backing plate, m is the number of kiln backing plates, R is the radius of the rotating wheel shaft, and n is the number of teeth (n is a natural number greater than or equal to 3).

[0026] Put Figure 4 , 5 As shown, the tooth 7 is made into a hollow tube, and the internal cavity of each tooth 7 serves as the second oil path, and the intermediate shaft 5 is also made into a hollow tube, and the internal cavity of the intermediate shaft 5 serves as the first oil path, and an oil hole 5-1 is opened at the position of the intermediate shaft 5 aligned with the tooth. When a certain tooth rotates to the hole position, the lubricating oil can be sprayed out from the tooth. The oil spraying time is determined by the size of the hole. The oil hole 5-1 is a flat fan-shaped hole. When a certain tooth is within the fan-shaped angle range, the tooth is in the oil spraying state.

[0027] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A cement kiln wheel belt self-lubricating device, characterized in that: The invention comprises an intermediate shaft (5), a sleeve (6) is arranged at the top of the intermediate shaft (5), a plurality of teeth (7) are arranged on the sleeve (6), a first oil circuit is arranged inside the intermediate shaft (5), the first oil circuit is connected to an oil supply pipe (8), an oil hole (5-1) is opened on the intermediate shaft (5), the oil hole (5-1) is connected to the first oil circuit, a second oil circuit is arranged inside the teeth (7), a third oil circuit is arranged inside the sleeve (6), the second oil circuit is connected to the third oil circuit; when the third oil circuit is aligned with the oil hole (5-1), lubricating oil flows into the second oil circuit and is sprayed out through the teeth (7).

2. The cement kiln wheel self-lubricating device according to claim 1 is characterized in that: The plurality of teeth (7) are evenly distributed around the circumference.

3. The cement kiln wheel self-lubricating device according to claim 1 is characterized in that: The oil hole (5-1) is configured as a flat fan-shaped hole.

4. The cement kiln wheel self-lubricating device according to claim 1 is characterized in that: A bracket (9) is arranged below the intermediate shaft (5), and one end of the bracket (9) away from the intermediate shaft (5) is connected to a base (10).

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