Rotary cement kiln support
Through the design of ball screws and buffer components, the support rollers are cushioned as the rotary kiln expands. Combined with cooling components, this solves the problem of support damage caused by the expansion of the rotary kiln, extends service life, and reduces the risk of high-temperature damage to the support rollers.
Patent Information
- Application Number
- CN202520300638.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-25
AI Technical Summary
The existing rotary kiln support lacks room to move during the expansion of the rotary kiln, which leads to damage to the support and affects its service life.
The design incorporates ball screws and buffer components. As the rotary kiln expands, the support rollers move away from each other. The buffer components cushion the mounting base, and the bidirectional screws ensure that the distance between the support rollers is equal. Combined with cooling components, this reduces high-temperature damage to the support rollers.
It effectively reduces rotary kiln misalignment and support roller damage, extends the service life of the support frame, and reduces the risk of high-temperature damage to the support roller.
Smart Images
Figure CN223896545U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of rotary kilns, and in particular to a support for a cement rotary kiln. Background Technology
[0002] Rotary kilns are widely used in metallurgy, chemical industry, building refractory materials, environmental sanitation and other industries. The kiln body is inclined to the horizontal, and the entire kiln body is supported by a roller support device and has a thrust roller device to control the up and down movement of the kiln body. In addition to the main drive, the transmission system is also equipped with an auxiliary transmission device that can still rotate the kiln body and prevent the kiln body from bending and deforming when the main power is interrupted.
[0003] The rotary kiln body expands due to heat during use. However, most of the supports currently used on the market are fixed in structure and do not leave extra room for the rotary kiln body to expand. This can easily cause damage to the rotary kiln support and affect its service life. Utility Model Content
[0004] In order to reduce the adverse effects on the service life of the rotary kiln support, this application provides a cement rotary kiln support.
[0005] The cement rotary kiln support provided in this application adopts the following technical solution:
[0006] A cement rotary kiln support includes a frame body and two symmetrically arranged support rollers located on the upper side of the frame body. The frame body is slidably connected to mounting seats that correspond to and are rotatably connected to the support rollers. The frame body is provided with a bidirectional lead screw that passes through the mounting seats and is threadedly connected to the mounting seats. The bidirectional lead screw is configured as a ball screw. The middle part of the bidirectional lead screw is rotatably connected to the frame body, and both ends of the bidirectional lead screw are provided with buffers.
[0007] By adopting the above technical solution, when the rotary kiln rotates, the support rollers rotate with the rotary kiln and support it. When the rotary kiln expands due to heat, it drives the support rollers on the same frame to move away from each other. At this time, the buffer component buffers the mounting base. The double-acting screw makes the movement distance of the support rollers relative to the middle of the double-acting screw equal, so that the rotary kiln is always located on the midline of the distance between the support rollers, reducing the possibility of rotary kiln deviation and reducing the adverse effects on the service life of the rotary kiln support.
[0008] Optionally, the buffer includes a first spring sleeved on the end of the bidirectional lead screw and fixedly connected at one end to the bidirectional lead screw, and the other end of the first spring is fixedly connected to the mounting base.
[0009] By adopting the above technical solution, the rotary kiln drive rollers move in a direction away from each other. At this time, the bidirectional screw rotates under the action of the roller movement, so that the moving distance of the mounting seat relative to the middle of the bidirectional screw is equal, and the first spring is compressed, thereby buffering the mounting seat. When the rotary kiln recovers its deformation, the first spring can easily recover its deformation and pull the mounting seat back to its original position, further reducing the adverse effects on the service life of the rotary kiln support.
[0010] Optionally, a limiting block is sleeved and rotatably connected to the middle of the bidirectional lead screw, the lower end of the limiting block is fixedly connected to the upper side of the frame body, and a second spring is fixedly connected to both sides of the limiting block, facing away from each other and abutting against the side wall of the mounting seat.
[0011] By adopting the above technical solution, when the first spring recovers its deformation and pulls the mounting base to reset, the mounting base continues to move towards each other under the action of inertia. At this time, the second spring hinders the rotating base from continuing to move, reducing the possibility of damage to the support roller and further reducing the adverse impact on the service life of the rotary kiln support.
[0012] Optionally, the end of the second spring away from the limiting block is fixedly connected to an abutment plate parallel to the width direction of the frame body.
[0013] By adopting the above technical solution, the second spring prevents the mounting base from moving further through the abutment plate, which increases the contact area of the mounting base under force, reduces the possibility of damage to the mounting base, and further reduces the adverse impact on the service life of the rotary kiln support.
[0014] Optionally, each of the mounting bases is provided with a cooling component for cooling the roller on the side closest to the roller.
[0015] By adopting the above technical solution, during the rotation of the rotary kiln, some of the heat from the rotary kiln is transferred to the support roller. At this time, the support roller is cooled by the cooling component, which reduces the possibility of damage to the support roller at high temperatures and further reduces the adverse impact on the service life of the rotary kiln support.
[0016] Optionally, a rotating shaft passes through and is fixedly connected to the rotation axis of each of the rollers. The rotating shaft has a cylindrical cross-section and its end passes through the mounting base and is rotatably connected to the mounting base. The cooling assembly includes a condenser tube located in the roller, spirally wound along the length of the rotating shaft, and communicating with the interior of the rotating shaft.
[0017] By adopting the above technical solution, water is introduced into the rotating shaft from one end. At this time, the water enters the condenser tube through the inside of the rotating shaft and flows along the length of the condenser tube until it flows back into the rotating shaft from the other end of the condenser tube and flows out. In this process, the water exchanges heat with the support roller and carries away the heat of the support roller, reducing the possibility of damage to the support roller at high temperature and further reducing the adverse impact on the service life of the rotary kiln support.
[0018] Optionally, a fan facing the roller is mounted on the side of the mounting base near the roller, and the mounting base is provided with a rotating component to drive the fan to rotate.
[0019] By adopting the above technical solution, the rotating component drives the fan to rotate and cools the side wall of the support roller. The rotation of the support roller enables the fan to cool the outer side wall of the support roller, reducing the possibility of damage to the support roller at high temperatures and reducing the adverse impact on the service life of the rotary kiln support.
[0020] Optionally, the rotating component includes a first bevel gear fixedly connected to the drive shaft of the fan, a second bevel gear meshing with one side of the first bevel gear, and a motor for driving the second bevel gear to rotate fixedly connected to the mounting base.
[0021] By adopting the above technical solution, the motor drives the first bevel gear to rotate the second bevel gear, thereby driving the fan to rotate, which facilitates cooling of the side wall of the support roller and reduces the possibility of damage to the support roller at high temperatures.
[0022] In summary, this application includes at least one of the following beneficial technical effects:
[0023] 1. When the rotary kiln rotates, the support rollers rotate with the rotary kiln and support it. When the rotary kiln expands due to heat, it drives the support rollers on the same frame to move away from each other. At this time, the buffer component buffers the mounting base. The double-acting screw makes the movement distance of the support rollers relative to the middle of the double-acting screw equal, so that the rotary kiln is always located on the midline of the distance between the support rollers, reducing the possibility of rotary kiln offset and reducing the adverse effects on the service life of the rotary kiln support.
[0024] 2. The rotary kiln drive rollers move in opposite directions. At this time, the double-acting screw rotates under the action of the rollers, so that the moving distance of the mounting seat relative to the middle of the double-acting screw is equal, and the first spring is compressed, thus buffering the mounting seat. When the rotary kiln recovers its deformation, the first spring can easily recover its deformation and pull the mounting seat back to its original position, further reducing the adverse effects on the service life of the rotary kiln support.
[0025] 3. Water is introduced into the rotating shaft from one end. The water then enters the condenser tube through the inside of the rotating shaft and flows along the length of the condenser tube until it flows back into the rotating shaft from the other end of the condenser tube and flows out. During the flow, the water exchanges heat with the support roller and carries away the heat from the support roller, reducing the possibility of damage to the support roller at high temperatures and further reducing the adverse effects on the service life of the rotary kiln support. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the overall structure of the cement rotary kiln support in the embodiments of this application.
[0027] Figure 2 This is a structural schematic diagram illustrating the positional relationship between the bidirectional lead screw and the cooling component in the embodiments of this application.
[0028] Figure 3 This is a structural schematic diagram illustrating the positional relationship between the condenser tube and the support roller in an embodiment of this application.
[0029] Explanation of reference numerals in the attached drawings: 1. Frame body; 11. Mounting base; 111. Cavity; 2. Support roller; 21. Rotating shaft; 3. Double-acting lead screw; 31. Limiting block; 32. First spring; 33. Second spring; 34. Abutment plate; 4. Cooling assembly; 41. Condenser pipe; 42. Fan; 43. Belt; 44. Rotating component; 441. First bevel gear; 442. Second bevel gear; 443. Motor. Detailed Implementation
[0030] The present application will be further described in detail below with reference to the accompanying drawings.
[0031] This application discloses a cement rotary kiln support. (Refer to...) Figure 1 A cement rotary kiln support includes a frame body 1 and two symmetrically arranged rollers 2 on the upper side of the frame body 1 and arranged along the width direction of the frame body 1. Two mounting seats 11 adapted to the rollers 2 are slidably connected on the frame body 1. Horizontal rotating shafts 21 are arranged and fixedly connected around the rotating shaft 21 of each roller 2. The rotating shafts 21 are configured as through cylindrical shapes and both ends of the rotating shafts 21 pass through the side walls of the mounting seats 11 and are rotatably connected to the mounting seats 11.
[0032] The frame body 1 is provided with a horizontally arranged bidirectional lead screw 3 along its length. The bidirectional lead screw 3 is a ball screw, and both ends of the bidirectional lead screw 3 are rotatably connected to the frame body 1. A limit block 31 is sleeved and rotatably connected to the middle of the bidirectional lead screw 3, and the lower end of the limit block 31 is fixedly connected to the frame body 1. The ends of the bidirectional lead screw 3 pass through the mounting base 11 and are threadedly connected to the mounting base 11. The ends of the bidirectional lead screw 3 are provided with buffers to cushion the mounting base.
[0033] When the rotary kiln rotates, the support rollers 2 rotate with the rotary kiln and support it. When the rotary kiln expands due to heat, it drives the support rollers 2 on the same frame 1 to move away from each other. At this time, the buffer component buffers the mounting base 11. The double-acting screw 3 makes the movement distance of the support rollers 2 relative to the middle of the double-acting screw 3 equal, so that the rotary kiln is always located on the midline of the distance between the support rollers 2, reducing the possibility of rotary kiln deviation.
[0034] The buffer includes a first spring 32 sleeved on the end of the bidirectional lead screw 3, with one end fixedly connected to the side wall of the bidirectional lead screw 3, and the other end of the first spring 32 fixedly connected to the side wall of the mounting base 11. Horizontal second springs 33 are fixedly connected to both sides of the limiting block 31, with the second springs 33 facing away from each other. The ends of the second springs 33 away from the limiting block 31 are fixedly connected to abutment plates 34 parallel to the mounting base 11 and abutting against the side wall of the mounting base 11. When the first spring 32 is at its original length, the rotary kiln does not expand, and the side wall of the support roller 2 is in contact with the side wall of the rotary kiln.
[0035] When the rotary kiln drive roller 2 moves away from each other, the double-acting screw 3 rotates under the action of the roller 2, and the first spring 32 is compressed, thus buffering the mounting seat 11. When the rotary kiln recovers its deformation, the first spring 32 can easily recover its deformation and pull the mounting seat back to its original position. Under the action of inertia, the mounting seat 11 continues to move towards each other. At this time, the second spring 33 prevents the mounting seat 11 from moving further through the abutment plate 34, reducing the possibility of damage to the roller 2.
[0036] Reference Figure 2 and Figure 3 The mounting base 11 is equipped with a cooling assembly 4 for cooling the support roller 2. The cooling assembly 4 includes a condenser tube 41 located in the support roller 2 and spirally wound along the length of the rotating shaft 21. Both ends of the condenser tube 41 are connected to the interior of the rotating shaft 21. At the lower end of the mounting base 11 and on the side near the support roller 2, there are two fans 42 arranged along the length of the mounting base 11 and facing the support roller 2. The fans 42 are rotatably connected to the mounting base 11, and the fans 42 on the same mounting base 11 are equipped with the same horizontal belt 43. The mounting base 11 is equipped with a rotating component 44 for driving the fans 42 to rotate.
[0037] The mounting base 11 has a cavity 111, the belt 43 is located in the cavity 111, and a horizontal first bevel gear 441 is fixedly connected to the lower side of the belt pulley at one end of the belt 43. A vertical second bevel gear 442 is meshed on one side of the first bevel gear 441. A motor 443 is fixedly connected to the mounting base 11, and the output shaft of the motor 443 is inserted into the cavity 111 and fixedly connected to the axis of the second bevel gear 442.
[0038] As the support roller 2 rotates with the rotary kiln, some of the heat from the rotary kiln is transferred to the support roller 2. At this time, water is introduced into the rotating shaft 21 from one end. The water then enters the condenser tube 41 through the inside of the rotating shaft 21 and flows along the length of the condenser tube 41 until it flows back into the rotating shaft 21 from the other end of the condenser tube 41 and flows out. In this process, the water exchanges heat with the support roller 2 and carries away the heat from the support roller 2. The motor 443 drives the first bevel gear 441 to drive the second bevel gear 442 to rotate through the belt 43, thereby driving the fan 42 to rotate. This facilitates the cooling of the side wall of the support roller 2 and reduces the possibility of damage to the support roller 2 at high temperatures.
[0039] The implementation principle of a cement rotary kiln support in this application embodiment is as follows: the rotary kiln drive roller 2 moves away from each other. At this time, the bidirectional screw 3 rotates under the action of the roller 2, and the first spring 32 is compressed, thereby buffering the mounting seat 11. When the rotary kiln recovers its deformation, the first spring 32 can easily recover its deformation and pull the mounting seat back to its original position. Under the action of inertia, the mounting seat 11 continues to move towards each other. At this time, the second spring 33 prevents the mounting seat 11 from continuing to move through the abutment plate 34, reducing the possibility of damage to the roller 2.
[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A cement rotary kiln support, characterized in that: The frame includes a frame body (1) and two symmetrically arranged rollers (2) located on the upper side of the frame body (1). The frame body (1) is slidably connected to mounting seats (11) that correspond to and are rotatably connected to the rollers (2). The frame body (1) is provided with a bidirectional screw (3) that passes through the mounting seats (11) and is threadedly connected to the mounting seats (11). The bidirectional screw (3) is a ball screw. The middle part of the bidirectional screw (3) is rotatably connected to the frame body (1), and both ends of the bidirectional screw (3) are provided with buffers.
2. The cement rotary kiln support according to claim 1, characterized in that: The buffer includes a first spring (32) sleeved on the end of the bidirectional lead screw (3) and fixedly connected at one end to the bidirectional lead screw (3), and the other end of the first spring (32) is fixedly connected to the mounting base (11).
3. A cement rotary kiln support according to claim 2, characterized in that: The bidirectional lead screw (3) is sleeved and rotatably connected to a limiting block (31) in the middle. The lower end of the limiting block (31) is fixedly connected to the upper side of the frame body (1). The limiting block (31) has a second spring (33) fixedly connected to both sides, facing away from each other and abutting against the side wall of the mounting seat (11).
4. A cement rotary kiln support according to claim 3, characterized in that: The end of the second spring (33) away from the limiting block (31) is fixedly connected to an abutment plate (34) parallel to the width direction of the frame body (1).
5. A cement rotary kiln support according to claim 1, characterized in that: Each mounting base (11) is provided with a cooling component (4) for cooling the roller (2) on the side near the roller (2).
6. A cement rotary kiln support according to claim 5, characterized in that: The rotating shaft (21) of each of the rollers (2) passes through and is fixedly connected to the rotating shaft (21). The rotating shaft (21) has a cylindrical cross-section and the end of the rotating shaft (21) passes through the mounting base (11) and is rotatably connected to the mounting base (11). The cooling component (4) includes a condenser tube (41) located in the roller (2) and spirally wound along the length of the rotating shaft (21) and communicating with the inside of the rotating shaft (21).
7. A cement rotary kiln support according to claim 6, characterized in that: The mounting base (11) has a fan (42) facing the roller (2) on the side near the roller (2), and the mounting base (11) is provided with a rotating component (44) that drives the fan (42) to rotate.
8. A cement rotary kiln support according to claim 7, characterized in that: The rotating component (44) includes a first bevel gear (441) fixedly connected to the drive shaft of the fan (42), a second bevel gear (442) meshing on one side of the first bevel gear (441), and a motor (443) for driving the second bevel gear (442) to rotate fixedly connected to the mounting base (11).