Circulating lubricating device for rotary kiln riding wheel supporting group

Abstract

The utility model relates to the technical field of rotary kiln devices, in particular to a rotary kiln riding wheel supporting set circulating lubrication device which comprises an inner circulating lubrication assembly and an outer circulating lubrication assembly, and the outer circulating lubrication assembly comprises an oil outlet pipe, an oil return pipe, an oil station and an oil inlet pipe which are sequentially connected together. The oil station enables lubricating oil in the outer oil groove to enter the oil receiving disc through the oil outlet pipe, the oil return pipe, the oil station, the oil inlet pipe and the oil inlet hole, or the lubricating oil in the oil station enters the oil receiving disc through the oil inlet pipe and the oil inlet hole and then lubricates all components in the rotary kiln riding wheel supporting set through the oil receiving disc, and the rotary kiln can be started after lubrication. The rotary kiln does not need to be started in a manual oil spraying mode any more, and starting of the rotary kiln is facilitated. Moreover, the outer circulation lubricating assembly and the inner circulation lubricating assembly can be used independently and can also lubricate all parts in the rotary kiln riding wheel supporting set together, and the lubricating effect of the rotary kiln riding wheel supporting set is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary kiln devices, in particular to a circulating lubrication device for a rotary kiln support roller group. Background Art

[0002] The rotary kiln roller support group is a supporting device in the cement rotary kiln. The roller shaft will rotate with the rotation of the rotary kiln. Since the roller support group bears a high load and the working environment temperature is high, the lubrication requirements of its components are high.

[0003] At present, a common circulating lubrication device of a rotary kiln roller support group includes an internal circulation lubrication assembly, wherein the roller support group includes a bearing base, a lining shoe, a roller shaft and a bearing upper end cover, the bottom surface of the bearing base is provided with an inner oil groove and an outer oil groove, an arc-shaped support plate is provided between the inner oil groove and the outer oil groove, the arc-shaped support plate is provided with an oil hole connecting the inner oil groove and the outer oil groove, the lining shoe is provided on the arc-shaped support plate, the roller shaft is rotatably provided in the lining shoe, the bearing upper end cover is connected to the bearing base, a thrust ring is provided on the roller shaft, and the thrust ring is provided near the inner side of the lining shoe, the internal circulation lubrication assembly includes multiple connecting rods, multiple oil spoons and an oil receiving pan, the oil receiving pan is provided on the bearing base through a support frame, and the oil receiving pan is provided above the roller shaft, oil outlet notches are distributed around the oil receiving pan, connecting rods are distributed at intervals on the circumference of the roller shaft, the connecting rods are provided near the outer side of the lining shoe, one end of a connecting rod is connected to an oil spoon, and the oil spoon connects the outer oil groove with the oil receiving pan. During operation, lubricating oil is added to the outer oil tank, and the rotation of the supporting roller shaft drives the connecting rod and the oil spoon on the connecting rod to rotate. The oil spoon transports the lubricating oil in the outer oil tank to the oil receiving pan, and then goes out through the oil outlet gap of the oil receiving pan to flush and lubricate the bearing base, lining, supporting roller shaft and thrust ring. The lubricating oil after lubricating each component flows into the inner oil tank and the outer oil tank again, and the inner oil tank also flows into the outer oil tank through the oil hole, realizing the recycling of the lubricating oil.

[0004] However, after a certain period of use, the rotary kiln needs to be shut down for maintenance. After the shutdown, the supporting roller shaft no longer rotates, and the internal circulation lubrication component cannot be used. When the rotary kiln is restarted, it is necessary to lubricate the various components in the supporting roller group by manual oiling before the rotary kiln can be started again. It can be seen that the existing circulation lubrication device is very inconvenient for starting the rotary kiln, which affects the use of the rotary kiln. Utility Model Content

[0005] The technical problem solved by the utility model is to provide a circulating lubricating device for a rotary kiln supporting wheel group which is convenient for starting the rotary kiln.

[0006] The technical solution adopted by the utility model to solve the technical problem is: a circulating lubrication device for a rotary kiln roller support group, including an internal circulation lubrication component, the roller support group including a bearing base, a lining shoe, a roller shaft and a bearing upper end cover, the bottom surface of the bearing base is provided with an inner oil groove and an outer oil groove, an arc-shaped support plate is provided between the inner oil groove and the outer oil groove, an oil hole connecting the inner oil groove and the outer oil groove is provided in the arc-shaped support plate, the lining shoe is provided on the arc-shaped support plate, the roller shaft is rotatably provided in the lining shoe, the bearing upper end cover is connected to the bearing base, and a thrust ring is sleeved on the roller shaft. The thrust ring is arranged near the inner side of the lining, and the internal circulation lubrication assembly includes multiple connecting rods, multiple oil spoons and an oil receiving pan. The oil receiving pan is arranged on the bearing base through a support frame, and the oil receiving pan is arranged above the supporting roller shaft. Oil outlet notches are distributed around the oil receiving pan at intervals. Connecting rods are arranged at intervals on the circumference of the supporting roller shaft. The connecting rods are arranged near the outer side of the lining, and an oil spoon is connected to one end of each connecting rod. The oil spoon connects the outer oil tank with the oil receiving pan. The external circulation lubrication assembly also includes an oil outlet pipe, an oil return pipe, an oil station and an oil inlet pipe connected together in sequence;

[0007] An oil outlet hole is provided on the side wall of the outer oil tank, and an oil inlet hole is provided on the upper end cover of the bearing. The oil inlet hole is connected to the oil receiving pan. The oil outlet pipe includes a connecting installation section, a transition giveway section and an oil high limit section connected together in sequence. The connecting installation section is horizontally arranged in the oil outlet hole, the transition giveway section is horizontally arranged, and the transition giveway section and the connecting installation section are perpendicular to each other. The oil high limit section is vertically arranged. The transition giveway section and the oil high limit section are both arranged in the outer oil tank, and the oil inlet pipe is connected to the oil inlet hole.

[0008] Furthermore, the connecting and installing section and the transition and yielding section are connected via a first bend pipe.

[0009] Furthermore, the transitional section and the oil high limit section are connected via a second elbow.

[0010] Furthermore, the oil return pipe and the oil inlet pipe are flexible pipes.

[0011] Furthermore, the oil inlet hole is arranged vertically, and is arranged above the thrust ring or above between the thrust ring and the lining shoe.

[0012] Furthermore, the number of connecting rods is 6-8, and the connecting rods are evenly spaced and distributed in the circumferential direction of the supporting roller shaft.

[0013] The beneficial effects of the present invention are as follows: by providing an external circulation lubrication assembly, the external circulation lubrication assembly includes an oil outlet pipe, an oil return pipe, an oil station and an oil inlet pipe connected together in sequence, and the oil station includes a control unit, a conveying unit, a filtering unit, and a cooling unit. Before the rotary kiln is started, the oil station flows the lubricating oil in the external oil tank into the oil receiving pan through the oil outlet pipe, the oil return pipe, the oil station, the oil inlet pipe, and the oil inlet hole, or the lubricating oil in the oil station flows into the oil receiving pan through the oil inlet pipe and the oil inlet hole, and then lubricates the various components in the rotary kiln roller support group through the oil receiving pan. After lubrication, the rotary kiln can be started, and it is no longer necessary to start the rotary kiln by manually spraying oil, which facilitates the start-up of the rotary kiln. In addition, the external circulation lubrication assembly and the internal circulation lubrication assembly can be used separately, or together to lubricate the various components in the rotary kiln roller support group, thereby improving the lubrication effect of the rotary kiln roller support group. The oil station can also filter, remove impurities, and cool the lubricating oil, further improving the lubricating effect of the lubricating oil and ensuring the normal use of the rotary kiln. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 It is a structural diagram of the oil outlet pipe;

[0016] Marked as: bearing base 11, lining 12, supporting wheel shaft 13, thrust ring 14, outer oil groove 15, oil hole 16, connecting rod 21, oil spoon 22, oil receiving pan 23, oil outlet pipe 31, connecting installation section 311, transition and give way section 312, oil high limit section 313, oil return pipe 32, oil station 33, oil inlet pipe 34. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] The following refers to the direction Figure 1 The position of each component in the diagram is used as the reference.

[0019] like Figure 1 、 Figure 2As shown, the utility model discloses a circulating lubrication device for a rotary kiln roller support group, comprising an internal circulation lubrication assembly, wherein the roller support group comprises a bearing base 11, a lining shoe 12, a roller shaft 13 and a bearing upper end cover, an inner oil groove and an outer oil groove 15 are provided on the bottom surface of the bearing base 11, an arc-shaped support plate is provided between the inner oil groove and the outer oil groove 15, an oil hole 16 for connecting the inner oil groove and the outer oil groove 15 is provided in the arc-shaped support plate, the lining shoe 12 is provided on the arc-shaped support plate, the roller shaft 13 is rotatably provided in the lining shoe 12, the bearing upper end cover is connected to the bearing base 11, a thrust ring 14 is provided on the roller shaft 13, and the thrust ring 14 is provided close to the inner side of the lining shoe 12. The internal circulation lubrication assembly includes multiple connecting rods 21, multiple oil spoons 22 and an oil receiving pan 23. The oil receiving pan 23 is arranged on the bearing base 11 through a support frame, and the oil receiving pan 23 is arranged above the roller shaft 13. Oil outlet notches 24 are distributed around the oil receiving pan 23 at intervals. The connecting rods 21 are arranged at intervals on the circumference of the roller shaft 13. The connecting rods 21 are arranged near the outer side of the lining 12. An oil spoon 22 is connected to one end of each connecting rod 21. The oil spoon 22 connects the outer oil tank 15 with the oil receiving pan 23. The external circulation lubrication assembly also includes an oil outlet pipe 31, an oil return pipe 32, an oil station 33 and an oil inlet pipe 34 connected together in sequence;

[0020] An oil outlet hole is provided on the side wall of the outer oil groove 15, and an oil inlet hole is provided on the upper end cover of the bearing. The oil inlet hole is connected to the oil receiving pan 23. The oil outlet pipe 31 includes a connecting and mounting section 311, a transition and give way section 312 and an oil high limit section 313 connected together in sequence. The connecting and mounting section 311 is horizontally arranged in the oil outlet hole, the transition and give way section 312 is horizontally arranged, and the transition and give way section 312 and the connecting and mounting section 311 are arranged perpendicular to each other. The oil high limit section 313 is vertically arranged. The transition and give way section 312 and the oil high limit section 313 are both arranged in the outer oil groove 15, and the oil inlet pipe 34 is connected to the oil inlet hole.

[0021] The oil station 33 is a complete set of equipment, including a control unit, a conveying unit, a filtering unit, and a cooling unit. It operates independently. One oil station 33 lubricates one group of rotary kiln roller support groups to prevent cross-contamination of lubricating oil. For greater convenience, the return oil pipe 32 and the oil inlet pipe 34 are both equipped with control valves, preferably solenoid check valves.

[0022] The oil inlet hole can be connected to the oil receiving pan 23 in the following manner: the oil inlet hole is arranged above the oil receiving pan 23 , and the lubricating oil through the oil inlet hole directly falls into the oil receiving pan 23 .

[0023] Before the rotary kiln is started, the oil station 33 transfers the lubricating oil from the outer oil tank 15 through the oil outlet pipe 31, the oil return pipe 32, the oil station 33, the oil inlet pipe 34, and the oil inlet hole into the oil receiving pan 23. Alternatively, the lubricating oil from the oil station 33 enters the oil receiving pan 23 through the oil inlet pipe 34 and the oil inlet hole. The oil then lubricates the various components of the rotary kiln's roller support assembly through the oil receiving pan 23. After lubrication, the rotary kiln can be started, eliminating the need for manual oiling. This facilitates the start-up of the rotary kiln. Furthermore, the external and internal circulation lubrication assemblies can be used separately or together to lubricate the various components of the rotary kiln's roller support assembly, improving the lubrication efficiency of the rotary kiln's roller support assembly. The oil station 33 can also filter, remove impurities, and cool the lubricating oil, further improving the lubricating efficiency and ensuring the normal operation of the rotary kiln.

[0024] Specifically, for example Figure 2 As shown, the oil outlet pipe 31 includes a connecting and mounting section 311, a transitional clearance section 312, and an oil height limit section 313, which are connected in sequence. This arrangement can not only transport the lubricating oil in the outer oil tank 15, but also ensure the normal use of the oil scoop 22. The connecting and mounting section 311 serves as a connecting and mounting fixing function and is fixed in the oil outlet hole; the transitional clearance section 312 serves as a clearance function and is arranged closer to the arc-shaped support plate relative to the connecting and mounting section 311. The transitional clearance section 312 prevents the oil outlet pipe 31 from affecting the rotational movement of the oil scoop 22, allowing it to be used normally; the oil height limit section 313 limits the minimum height of the lubricating oil in the outer oil tank 15. When the lubricating oil level in the outer oil tank 15 is lower than the oil height limit section 313, the lubricating oil is no longer transported out through the oil outlet pipe 31, ensuring the normal use of the internal circulation lubrication component.

[0025] In order to improve the use effect and service life of the oil outlet pipe 31, the oil outlet pipe 31 is made of steel, and the connecting installation section 311 and the transition section 312 are connected by a first bend pipe, and the transition section 312 and the oil high limit section 313 are connected by a second bend pipe.

[0026] In order to facilitate the use of the oil return pipe 32 and the oil inlet pipe 34, the oil return pipe 32 and the oil inlet pipe 34 are flexible pipes.

[0027] In order to ensure the lubrication effect of the internal circulation lubrication components, Figure 1 As shown, the number of the connecting rods 21 is 6-8, and the connecting rods 21 are evenly spaced and distributed in the circumferential direction of the supporting roller shaft 13 .

[0028] To improve the performance of the external circulation lubrication assembly, the oil inlet is vertically arranged above the thrust ring 14 or above the space between the thrust ring 14 and the lining shoe 12. When the lubricating oil falls into the oil receiving pan 23 through the oil inlet, the lubricating oil is splashed and lubricates the surrounding thrust ring 14 and lining shoe 12, thereby improving the lubrication effect of the thrust ring 14 and lining shoe 12.

Claims

1. A circulating lubrication device for a rotary kiln roller support group, comprising an internal circulation lubrication assembly, wherein the roller support group comprises a bearing base (11), a lining shoe (12), a roller shaft (13) and a bearing upper end cover, wherein the bottom surface of the bearing base (11) is provided with an inner oil groove and an outer oil groove (15), an arc-shaped support plate is provided between the inner oil groove and the outer oil groove (15), an oil hole (16) for connecting the inner oil groove and the outer oil groove (15) is provided in the arc-shaped support plate, the lining shoe (12) is provided on the arc-shaped support plate, the roller shaft (13) is rotatably provided in the lining shoe (12), the bearing upper end cover is connected to the bearing base (11), and a thrust ring (14) is provided on the roller shaft (13), the thrust ring (14) is arranged near the inner side of the lining (12), and the internal circulation lubrication assembly includes multiple connecting rods (21), multiple oil spoons (22) and an oil receiving pan (23). The oil receiving pan (23) is arranged on the bearing base (11) through a support frame, and the oil receiving pan (23) is arranged above the supporting roller shaft (13). Oil outlet notches (24) are distributed at intervals around the oil receiving pan (23). The connecting rods (21) are arranged at intervals on the circumference of the supporting roller shaft (13). The connecting rods (21) are arranged near the outer side of the lining (12). One end of each connecting rod (21) is connected to an oil spoon (22). The oil spoon (22) connects the outer oil tank (15) with the oil receiving pan (23). It is characterized in that: It also includes an external circulation lubrication component, which includes an oil outlet pipe (31), an oil return pipe (32), an oil station (33) and an oil inlet pipe (34) connected together in sequence; An oil outlet hole is provided on the side wall of the outer oil groove (15), an oil inlet hole is provided on the upper end cover of the bearing, and the oil inlet hole is communicated with the oil receiving pan (23). The oil outlet pipe (31) comprises a connecting and mounting section (311), a transition and yielding section (312), and an oil high limit section (313) which are connected in sequence. The connecting and mounting section (311) is horizontally arranged in the oil outlet hole, the transition and yielding section (312) is horizontally arranged, and the transition and yielding section (312) and the connecting and mounting section (311) are perpendicularly arranged to each other. The oil high limit section (313) is vertically arranged. Both the transition and yielding section (312) and the oil high limit section (313) are arranged in the outer oil groove (15), and the oil inlet pipe (34) is communicated with the oil inlet hole.

2. The circulating lubrication device for the rotary kiln roller support group according to claim 1, characterized in that: The connecting and installing section (311) and the transition and giving way section (312) are connected via a first curved pipe.

3. The circulating lubrication device for the rotary kiln roller support group according to claim 2, characterized in that: The transitional yielding section (312) and the oil high limiting section (313) are connected via a second curved pipe.

4. The circulating lubrication device for the rotary kiln roller support group according to claim 1, characterized in that: The oil return pipe (32) and the oil inlet pipe (34) are flexible pipes.

5. The circulating lubrication device for the rotary kiln roller support group according to claim 1, characterized in that: The oil inlet hole is arranged vertically and is arranged above the thrust ring (14) or above between the thrust ring (14) and the lining bush (12).

6. The circulating lubrication device for the rotary kiln roller support group according to any one of claims 1 to 5, characterized in that: The number of the connecting rods (21) is 6-8, and the connecting rods (21) are evenly spaced and distributed in the circumferential direction of the supporting roller shaft (13).

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