A roller graphite lubricating device for a rotary furnace

Abstract

The application relates to the technical field of rotary furnaces, and discloses a graphite lubricating device for a rotary furnace, which comprises a supporting plate and a supporting frame. The supporting plate is provided on the top with a supporting frame and a mounting plate. The supporting frame is internally provided with a graphite block. The bottom of the graphite block is overlapped on the surface of the supporting frame. The graphite lubricating device for the rotary furnace is provided with first and second compression springs, so that the bottom of the graphite block is always tightly attached to the surface of the supporting frame, the gap caused by abrasion can be compensated, and the continuity of lubrication can be ensured. Meanwhile, the supporting frame is rotatably connected to the shaft through the bearing connection between the rotating rod and the fixed plate, so that the contact angle of the graphite block and the supporting frame can be adjusted to adapt to the lubrication demand under different working conditions. The sliding rod is slidingly connected in the vertical box, the height of the graphite block can be adjusted, and the interference contact can be ensured in different abrasion stages.

Description

Technical Field

[0001] This application relates to the field of rotary kiln technology, specifically to a graphite lubrication device for a rotary kiln support roller. Background Technology

[0002] Rotary furnaces are widely used in industries such as chemical, building materials, and metallurgy. Their roller assemblies play a key supporting and transmission role in rotary furnace equipment. The operating status of the roller assemblies directly affects the overall performance and service life of the equipment. In order to ensure the normal operation of the roller assemblies, they need to be lubricated.

[0003] An existing patent (publication number: CN 217303548 U) discloses a graphite lubrication structure for a rotary kiln support roller, including a graphite mounting frame and a graphite plate connected to the support roller bearing seat; the left end of the graphite mounting frame is higher than the right end, and the plane along the length of the graphite mounting frame intersects the axis of the support roller; the concave-convex graphite plate is inserted into the graphite mounting frame, with the lower end face of the graphite plate abutting against the surface of the support roller. This structure uses a concave-convex assembly to reduce the gaps between the graphite plates, ensuring that the graphite plate fully covers the surface of the support roller, providing continuous lubrication and preventing cracks and peeling caused by pitting and rust on the surface of the support roller; the graphite mounting frame is inclined to the axis of the support roller, and the contact surface between the graphite plate and the support roller is an arc surface, which facilitates the timely discharge of flying dust, foreign objects, oil, or rainwater falling into the contact area between the graphite plate and the support roller, eliminating factors that cause wear and damage from foreign objects and ensuring good graphite lubrication.

[0004] Although the device in the aforementioned comparative document solves the problem that the graphite blocks cannot cover the surface of the support roller and it is difficult to continuously lubricate the surface of the support roller, the device relies on its own weight to contact the support roller during use, which can easily lead to unstable pressure. Vibration can easily cause the graphite blocks to separate from the support roller intermittently, interrupting lubrication and failing to ensure that the support roller is always in a good lubricated state, affecting the continuous operation of the equipment. In order to solve the above problems, a graphite lubrication device for the support roller of a rotary kiln is proposed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a graphite lubrication device for rotary kiln support rollers, which has advantages such as a clamping function. It solves the problems that relying on gravity to contact the support rollers can easily lead to unstable pressure, vibration can easily cause intermittent separation of graphite blocks from the support rollers, interrupting lubrication and failing to ensure that the support rollers are always in a good lubrication state, thus affecting the continuous operation of the equipment.

[0006] To achieve the above objectives, this application provides the following technical solution: a graphite lubrication device for a rotary kiln support roller, comprising a support plate and a support frame, wherein a support roller body and an mounting plate are installed and connected to the top of the support plate, and a graphite block is placed inside the support frame, with the bottom of the graphite block overlapping the surface of the support roller body. The mounting plate has upright boxes fixedly connected to its top on both opposite sides. A sliding rod is slidably connected inside each upright box. A fixing ring is fixedly connected to the top of each sliding rod, and a fixing plate is fixedly connected inside the fixing ring. Positioning discs are fixedly connected to both opposite sides of the support frame. A rotating rod is fixedly connected to the side of each positioning disc. The rotating rod is tightly nested within a bearing fixedly connected inside the fixing plate. A top cover is installed on the top of the support frame. A first limiting frame is fixedly connected to the bottom of the support frame. A second limiting frame is fixedly connected to the top of the top cover. The first and second limiting frames have identical internal structures. A first compression spring is fixedly connected to the inner side of the first limiting frame. A shrink box is fixedly connected to one end of the first compression spring. A second compression spring is fixedly connected to the inner side of the shrink box. A push plate is fixedly connected to one end of the second compression spring, and a roller is provided at one end of the push plate.

[0007] Through the above scheme, the bottom of the graphite block can always be kept in close contact with the surface of the support roller by the first and second clamping springs, which can compensate for the gap caused by wear and ensure the continuity of lubrication. At the same time, the bearing connection between the rotating rod and the fixed plate allows the support frame to rotate around the axis, thereby adjusting the contact angle between the graphite block and the support roller, which can adapt to the lubrication requirements under different working conditions. The sliding rod is slidably connected in the vertical box, which can adjust the height of the graphite block and ensure that interference contact is maintained at different wear stages.

[0008] Furthermore, protruding plates are fixedly connected to both sides of the bottom of the support frame, and a rotating shaft is tightly nested between the two protruding plates via a bearing. Two circular plates are fixedly connected to the surface of the rotating shaft, and a scraper is fixedly connected between the two circular plates.

[0009] The above solution involves setting up a scraper, which is fixed to the convex plate via a rotating shaft. As the support roller rotates, the scraper can automatically remove impurities such as dirt and oxide layers adhering to the surface, preventing the accumulation of impurities from affecting the lubrication effect of graphite.

[0010] Furthermore, a torsion spring is fitted onto the surface of the rotating shaft, and the two ends of the torsion spring are respectively fixedly connected to the side of the circular plate and the side of the convex plate.

[0011] By using the above solution, the circular plate and the convex plate are connected by a torsion spring, which allows the scraper to briefly avoid being squeezed by the uneven surface of the support roller and to return to its original position under the action of the torsion spring, thus maintaining continuous cleaning power.

[0012] Furthermore, the fixing ring has an annular groove inside, and the positioning disk has multiple positioning holes inside.

[0013] The above solution provides storage space for the slide bar, ring block, and positioning spring by setting an annular groove.

[0014] Furthermore, a sliding rod is slidably connected to the inner side of the annular groove, and a pulling block and an annular block are fixedly connected to both ends of the sliding rod, respectively. Multiple positioning blocks are fixedly connected to the side of the annular block, and one end of the positioning block is engaged in the positioning hole.

[0015] The above method stabilizes the angle of the adjusted support frame by inserting the positioning block into the positioning hole.

[0016] Furthermore, a positioning spring is fitted onto the surface of the slide rod, and the two ends of the positioning spring are respectively fixedly connected to the inner side of the annular groove and the side of the annular block.

[0017] The above solution, by setting a positioning spring, can stabilize the position of the positioning block within the positioning hole under the action of the positioning spring.

[0018] Furthermore, the sliding rod has multiple positioning threaded holes on its surface, and the upright box is rotatably connected to a positioning bolt, one end of which is threaded into the positioning threaded hole.

[0019] By adjusting the position of the positioning bolt in the positioning threaded hole, the overall height of the graphite block can be adjusted, ensuring that interference contact is maintained at different wear stages.

[0020] Furthermore, the top of the support frame has L-shaped locking holes on both opposite sides, and the top cover has two L-shaped locking rods fixedly connected to both opposite sides, with the L-shaped locking rods engaging in the L-shaped locking holes.

[0021] The above solution, through the insertion design of L-shaped lever and L-shaped hole, allows the top cover to be removed without tools, making it easy for people to quickly replace or replenish graphite blocks. At the same time, the locking structure can remain stable in a vibration environment, preventing accidental opening.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects: 1. A graphite lubrication device for a rotary kiln support roller, by setting a first clamping spring and a second clamping spring, when pushing the graphite block, the push plate can apply pressure to the top of the graphite block under the action of the first clamping spring, so that the bottom of the graphite block is always in close contact with the support roller surface, which can compensate for the gap caused by wear and ensure the continuity of lubrication. Under the action of the second clamping spring, when half of the graphite block is consumed, another set of push plates can continue to apply pressure to the top of the graphite block. At the same time, the support frame is allowed to rotate around the axis through the bearing connection between the rotating rod and the fixed plate, thereby adjusting the contact angle between the graphite block and the support roller, which can adapt to the lubrication requirements under different working conditions. The height of the graphite block can be adjusted by sliding the sliding rod in the vertical box, which can ensure that interference contact is maintained at different wear stages. 2. This graphite lubrication device for a rotary kiln support roller, by setting a pulling block, allows the positioning block to disengage from the positioning hole when the angle of the support frame needs to be adjusted. After disengagement, the angle of the support frame can be adjusted. After adjustment, the pulling block is released, and the positioning block can be re-engaged in the positioning hole under the action of the positioning spring, which can stabilize the angle of the adjusted support frame and make it more convenient to use. By adjusting the position of the positioning bolt in the positioning threaded hole, it is easy to adjust the overall height of the graphite block, which can ensure that interference contact is maintained at different wear stages. Attached Figure Description

[0023] Figure 1 This is a frontal three-dimensional structural diagram of this application; Figure 2 This is a side-view perspective three-dimensional structural diagram of this application; Figure 3 This is a schematic diagram of the structure in the side cross-section of this application; Figure 4 This is a schematic diagram of the structure in frontal cross-section in this application; Figure 5 for Figure 4 Enlarged structural diagram at point A; Figure 6 for Figure 4 A structural schematic diagram with an enlarged cross-sectional view at point B; Figure 7 for Figure 3 Enlarged structural diagram at point C.

[0024] In the picture: 1. Support plate; 2. The supporting wheel body; 3. Mounting plate; 301. Stand box; 302. Sliding rod; 303. Fixing ring; 304. Positioning threaded hole; 305. Fixing plate; 306. Annular groove; 307. Sliding rod; 308. Pull block; 309. Positioning spring; 3010. Annular block; 3011. Positioning block; 3012. Positioning bolt; 4. Support frame; 401. Positioning plate; 402. Rotating rod; 403. Positioning hole; 404. L-shaped locking hole; 405. Scraper; 406. First limiting frame; 407. First compression spring; 408. Shrink box; 409. Second compression spring; 4010. Push plate; 4011. Roller; 4012. Protruding plate; 4013. Rotating shaft; 4014. Circular plate; 4015. Torsion spring; 5. Graphite blocks; 6. Top cover; 601. L-shaped locking rod; 602. Second limiting frame. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0026] Please see Figure 1 , Figure 2 and Figure 7 In this embodiment, a graphite lubrication device for a rotary kiln support roller includes a support plate 1 and a support frame 4. The support plate 1 is connected to the top of the support roller body 2 and the mounting plate 3. A graphite block 5 is placed inside the support frame 4, and the bottom of the graphite block 5 overlaps the surface of the support roller body 2. On both sides of the top of the mounting plate 3, there are upright boxes 301 fixedly connected. Inside the upright boxes 301, there are sliding rods 302 slidably connected. The top of the sliding rods 302 is fixedly connected to a fixing ring 303. Inside the fixing ring 303, there is a fixing plate 305 fixedly connected. On both sides of the support frame 4, there are positioning discs 401 fixedly connected. The side of the positioning discs 401 is fixedly connected to a rotating rod 402. The rotating rod 402 is tightly nested in the bearing fixedly connected inside the fixing plate 305. A top cover 6 is installed on the top of the support frame 4. A first limiting frame 406 is fixedly connected to the bottom of the support frame 4. A second limiting frame 602 is fixedly connected to the top of the top cover 6. The first limiting frame 406 and the second limiting frame 602 have the same internal structure. A first compression spring 407 is fixedly connected to the inner side of the first limiting frame 406. A shrink box 408 is fixedly connected to one end, and a second compression spring 409 is fixedly connected to the inner side of the shrink box 408. A push plate 4010 is fixedly connected to one end of the second compression spring 409, and a roller 4011 is provided at one end of the push plate 4010. Through the first compression spring 407 and the second compression spring 409, the bottom of the graphite block 5 can always be in close contact with the surface of the support roller, which can compensate for the gap caused by wear and ensure the continuity of lubrication. At the same time, through the bearing connection between the rotating rod 402 and the fixed plate 305, the support frame 4 is allowed to rotate around the axis, thereby adjusting the contact angle between the graphite block 5 and the support roller, which can adapt to the lubrication requirements under different working conditions. Through the sliding rod 302, it is slidably connected in the vertical box 301, which can adjust the height of the graphite block 5 and ensure that interference contact is maintained at different wear stages.

[0027] Please see Figure 6The support frame 4 has two convex plates 4012 fixedly connected to opposite sides at the bottom. A rotating shaft 4013 is tightly nested between the two convex plates 4012 via bearings. Two circular plates 4014 are fixedly connected to the surface of the rotating shaft 4013. A scraper 405 is fixedly connected between the two circular plates 4014. By setting the scraper 405, which is fixed to the convex plate 4012 via the rotating shaft 4013, it can automatically scrape off dirt, oxide layer and other impurities attached to the surface as the support roller rotates, preventing the accumulation of impurities from affecting the graphite lubrication effect. A torsion spring 4015 is sleeved on the surface of the rotating shaft 4013. The two ends of the torsion spring 4015 are fixedly connected to the side of the circular plate 4014 and the side of the convex plate 4012, respectively. The torsion spring 4015 connects the circular plate 4014 and the convex plate 4012, allowing the scraper 405 to briefly avoid being squeezed by the uneven surface of the support roller and to return to its original position under the action of the torsion spring 4015, maintaining continuous cleaning force.

[0028] Please see Figure 4 and Figure 5 The fixed ring 303 has an annular groove 306 inside, and the positioning plate 401 has multiple positioning holes 403 inside. By setting the annular groove 306, storage space can be provided for the slide rod 307, the annular block 3010 and the positioning spring 309. The slide rod 307 is slidably connected to the inner side of the annular groove 306. The two ends of the slide rod 307 are respectively fixedly connected to the pull block 308 and the annular block 3010. Multiple positioning blocks 3011 are fixedly connected to the side of the annular block 3010. One end of the positioning block 3011 is engaged in the positioning hole 403. By the positioning block 3011 being engaged in the positioning hole 403, the angle of the adjusted support frame 4 can be stabilized. The surface of the slide rod 307 is fitted with a positioning spring 309. The two ends of the positioning spring 309 are respectively fixedly connected to the inner side of the annular groove 306 and the side of the annular block 3010. By setting the positioning spring 309, the position of the positioning block 3011 can be stabilized in the positioning hole 403 under the action of the positioning spring 309.

[0029] Please see Figure 2 and Figure 4 The sliding rod 302 has multiple positioning threaded holes 304 on its surface. The upright box 301 is rotatably connected to a positioning bolt 3012. One end of the positioning bolt 3012 is threaded into the positioning threaded hole 304. By adjusting the position of the positioning bolt 3012 in the positioning threaded hole 304, it is easy to adjust the overall height of the graphite block 5. This ensures that the interference contact is maintained at different wear stages. The top of the support frame 4 has L-shaped locking holes 404 on both opposite sides. The top cover 6 has two L-shaped locking rods 601 fixedly connected to both opposite sides. The L-shaped locking rods 601 are locked into the L-shaped locking holes 404. Through the insertion design of the L-shaped locking rods 601 and the L-shaped locking holes 404, the top cover 6 can be disassembled without tools, which is convenient for people to quickly replace or replenish the graphite block 5. At the same time, the locking structure can remain stable in the vibration environment and can prevent accidental opening.

[0030] In this embodiment, the first clamping spring 407, the second clamping spring 409, and the roller 4011 within the first limiting frame 406 and the second limiting frame 602 ensure that the bottom of the graphite block 5 remains in close contact with the surface of the support roller, compensating for gaps caused by wear and ensuring continuous lubrication. Simultaneously, the rotating rod 402, connected to the bearing of the fixed plate 305, allows the support frame 4 to rotate around its axis, thereby adjusting the contact angle between the graphite block 5 and the support roller to adapt to lubrication requirements under different working conditions. The sliding rod 302, slidably connected within the vertical box 301, allows for height adjustment of the graphite block 5, ensuring interference contact is maintained at different wear stages. When the angle of the support frame 4 needs to be adjusted by moving the pull block 308, the positioning block 3011 can be disengaged from the positioning hole 403. After disengagement, the angle of the support frame 4 can be adjusted. After adjustment, the pull block 308 is released, and the positioning block 3011 can be re-engaged in the positioning hole 403 under the action of the positioning spring 309. This can stabilize the angle of the adjusted support frame 4 and make it more convenient to use. By adjusting the position of the positioning bolt 3012 in the positioning threaded hole 304, it is easy to adjust the overall height of the graphite block 5 and ensure that interference contact is maintained at different wear stages.

[0031] The working principle of the above embodiment is as follows: When in use, people put the graphite block 5 into the support frame 4. After placement, people install and connect the top cover 6 to the top of the support frame 4 through the L-shaped clamp 601 and L-shaped clamp 404. After installation, under the action of the first clamping spring 407, the push plate 4010 can apply pressure to the top of the graphite block 5, so that the bottom of the graphite block 5 is always in close contact with the surface of the support roller, which can compensate for the gap caused by wear and ensure the continuity of lubrication. When half of the graphite block 5 is consumed, under the action of the second clamping spring 409, another set of push plates 4010 can continue to apply pressure to the top of the graphite block 5, making it more convenient to use. When the angle of the support frame 4 needs to be adjusted, people can move the pull block 308 to disengage the positioning block 3011 from the positioning hole 403. After disengagement, people can adjust the angle of the support frame 4. After adjustment, the pull block 308 is released, and under the action of the positioning spring 309, the positioning block 3011 can be re-engaged in the positioning hole 403, which can stabilize the angle of the adjusted support frame 4.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A graphite lubrication device for a rotary kiln support roller, comprising a support plate (1) and a support frame (4), characterized in that: The top of the support plate (1) is connected to the roller body (2) and the mounting plate (3), and the support frame (4) contains a graphite block (5), with the bottom of the graphite block (5) overlapping the surface of the roller body (2). The mounting plate (3) has two fixedly connected boxes (301) on opposite sides of its top. A sliding rod (302) is slidably connected inside the box (301). A fixing ring (303) is fixedly connected to the top of the sliding rod (302). A fixing plate (305) is fixedly connected inside the fixing ring (303). The support frame (4) has two fixedly connected positioning discs (401) on opposite sides. A rotating rod (402) is fixedly connected to the side of the positioning disc (401). The rotating rod (402) is tightly nested within a bearing fixedly connected inside the fixing plate (305). A top cover (6) is installed on the top of the support frame (4). A first limiting frame (406) is fixedly connected to the bottom, and a second limiting frame (602) is fixedly connected to the top of the top cover (6). The first limiting frame (406) and the second limiting frame (602) have the same internal structure. A first compression spring (407) is fixedly connected to the inner side of the first limiting frame (406). A shrink box (408) is fixedly connected to one end of the first compression spring (407). A second compression spring (409) is fixedly connected to the inner side of the shrink box (408). A push plate (4010) is fixedly connected to one end of the second compression spring (409). A roller (4011) is provided at one end of the push plate (4010).

2. The graphite lubrication device for a rotary kiln support roller according to claim 1, characterized in that: The support frame (4) has convex plates (4012) fixedly connected to both sides of its bottom. A rotating shaft (4013) is tightly nested between the two convex plates (4012) through a bearing. Two circular plates (4014) are fixedly connected to the surface of the rotating shaft (4013). A scraper (405) is fixedly connected between the two circular plates (4014).

3. The graphite lubrication device for a rotary kiln support roller according to claim 2, characterized in that: The rotating shaft (4013) is fitted with a torsion spring (4015), and the two ends of the torsion spring (4015) are respectively fixedly connected to the side of the circular plate (4014) and the side of the convex plate (4012).

4. The graphite lubrication device for a rotary kiln support roller according to claim 1, characterized in that: The fixing ring (303) has an annular groove (306) inside, and the positioning plate (401) has multiple positioning holes (403) inside.

5. A graphite lubrication device for a rotary kiln support roller according to claim 4, characterized in that: A slide rod (307) is slidably connected to the inner side of the annular groove (306). A pull block (308) and an annular block (3010) are fixedly connected to both ends of the slide rod (307). A plurality of positioning blocks (3011) are fixedly connected to the side of the annular block (3010). One end of the positioning block (3011) is engaged in the positioning hole (403).

6. A graphite lubrication device for a rotary kiln support roller according to claim 5, characterized in that: The slide bar (307) is fitted with a positioning spring (309), and the two ends of the positioning spring (309) are respectively fixedly connected to the inner side of the annular groove (306) and the side of the annular block (3010).

7. A graphite lubrication device for a rotary kiln support roller according to claim 1, characterized in that: The sliding rod (302) has multiple positioning threaded holes (304) on its surface, and the upright box (301) is rotatably connected to a positioning bolt (3012), one end of which is threaded into the positioning threaded hole (304).

8. A graphite lubrication device for a rotary kiln support roller according to claim 1, characterized in that: The support frame (4) has L-shaped holes (404) on both sides of its top. The top cover (6) has two L-shaped rods (601) fixedly connected to both sides of its top. The L-shaped rods (601) are engaged in the L-shaped holes (404).

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