Dynamic autorotation driving device for silicon carbide rod
By designing a dynamic rotation driving device of silicon carbon rod including a displacement driving mechanism and a rotation driving mechanism, the silicon carbon rod rotates simultaneously while moving axially, solving the problems of uneven stress and fragmentation risks in the prior art, ensuring the stability and efficiency of the texture cutting process.
Patent Information
- Application Number
- CN202421472908.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-06-26
AI Technical Summary
The prior art cannot realize the synchronous rotation of silicon carbon rods while moving axially, resulting in uneven stress during texture cutting and increasing the risk of fragmentation.
A dynamic rotation driving device of silicon carbon rod including a displacement driving mechanism assembly and a rotation driving mechanism assembly is designed. Through the transmission method of the synchronization wheel and the synchronization belt, the axial movement and rotational movement of the silicon carbon rod are realized.
The silicon carbon rod is realized synchronously rotated while moving axially, ensuring uniform stress distribution of the blade, significantly reducing the risk of chipping of the silicon carbon rod during texture cutting, and the structure design is simple and compact, and the operation is stable and reliable.
Smart Images
Figure CN222904547U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of silicon carbide rod manufacturing equipment. Specifically, it particularly relates to a dynamic self-rotation driving device for silicon carbide rods, which can synchronously rotate while moving axially, has a simple and compact structure design, and operates stably and reliably. Background Art
[0002] A silicon carbide rod is a non-metallic high-temperature electric heating element, mainly made of high-purity green hexagonal silicon carbide, sintered by siliconization and recrystallization at a high temperature of 2200 °C. Its shape is usually rod-shaped or tubular, and it can reach a normal use temperature of 1450 °C in an oxidizing atmosphere, and the continuous use time can reach 2000 hours. Silicon carbide rods are widely used in the field of hot surface igniters.
[0003] To reduce thermal stress concentration and improve the thermal shock resistance of silicon carbide rods, spiral textures, such as double spiral textures, are usually engraved on the surface of the silicon carbide rods. If the silicon carbide rod can move axially and rotate synchronously, even if the position of the tool head does not move, the texture can be formed. Moreover, this method causes less damage to the product compared to the traditional method where the tool head moves and the product does not move, and the silicon carbide rod is not easily broken. However, there is currently no device that can achieve the synchronous rotation of the silicon carbide rod while moving axially. Summary of the Utility Model
[0004] The purpose of the utility model is to address the deficiencies existing in the prior art, and provide a dynamic self-rotation driving device for silicon carbide rods, which can synchronously rotate while moving axially, has a simple and compact structure design, and operates stably and reliably.
[0005] The utility model is achieved through the following technical solutions:
[0006] A dynamic self-rotation driving device for silicon carbide rods includes a displacement driving mechanism assembly and a self-rotation driving mechanism assembly;
[0007] The displacement driving mechanism assembly includes a back plate fixed on the workbench and a displacement driving unit fixed on the back plate. A lead screw is also provided on the back plate, with one end drivingly connected to the displacement driving unit and the other end bearing-connected to a tail-end bearing seat fixed on the back plate. A lead screw nut seat is threadedly connected to the lead screw, and a module plate is fixed on the lead screw nut seat. A constraint slide rail fixed on the back plate is provided on one side of the lead screw nut seat, and a constraint slider is slidably provided on the constraint slide rail. The constraint slider is fixedly connected to the module plate; a pressing mechanism assembly for pressing the silicon carbide rod is fixedly provided above the module plate.
[0008] The self-rotation drive mechanism assembly includes a second motor mounting plate fixed on the module plate for supporting the self-rotation drive unit. The self-rotation drive unit drives a rotating shaft that is bearing-connected to a bearing mounting seat. A spring collet assembly for clamping the silicon carbide rod is fixedly installed at the head of the rotating shaft.
[0009] Preferably, the pressing mechanism assembly includes a pressing cylinder fixed on the module plate through a cylinder support plate. A ferrule is fixedly installed on the end plate of the pressing cylinder, and the vertical center line of the ferrule is collinear with the vertical center line of the spring collet assembly.
[0010] Preferably, the spring collet assembly includes a spring collet sleeved with a clamping sleeve. The end of the spring collet is fixedly connected to the rotating shaft through a guide sleeve.
[0011] Preferably, backplane reinforcing plates are fixedly provided on both sides of the backplane in a direction perpendicular to it; dust-proof side baffles are fixedly provided on both sides of the module plate in a direction perpendicular to it.
[0012] Preferably, the displacement drive unit includes a displacement motor that drives the lead screw by means of the transmission of a synchronous pulley and a synchronous belt. The displacement motor is fixed on the backplane through a first motor mounting plate; the self-rotation drive unit includes a self-rotation motor that drives the rotating shaft by means of the transmission of a synchronous pulley and a synchronous belt.
[0013] Preferably, the space between the second motor mounting plate and the bearing mounting seat is covered by a protective cover.
[0014] Preferably, a top bellows mounting plate is fixedly provided at the top position of the backplane, and a tail bellows mounting plate is fixedly provided at the bottom position of the backplane; bellows for protection are provided between the top bellows mounting plate and the upper end face of the module plate, and between the lower end face of the module plate and the tail bellows mounting plate.
[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0016] 1. The present utility model has a unique design, realizing the synchronous self-rotation of the silicon carbide rod while it moves axially; that is, the present utility model can drive the silicon carbide rod to perform two kinds of movements simultaneously: one is a linear movement along its axis, and the other is a rotational movement around its own axis. This compound movement mechanism ensures that the stress distribution generated by the blade on the silicon carbide rod is uniform and stable, thus significantly reducing the risk of fragmentation during the texture cutting process of the silicon carbide rod;
[0017] 2. The structure of the present utility model is designed to be simple, compact, small and flexible, occupying little space;
[0018] 3. The present utility model can be widely applied to the silicon carbide rod manufacturing industry and has positive significance in the field of silicon carbide rod texture forming technology. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 is a schematic structural view of the present utility model.
[0020] Figure 2 is Figure 1 a schematic view of the structure after hiding the module board, bellows cover, and protective cover. Figure 1 .
[0021] Figure 3 is Figure 2 an enlarged view of part A in
[0022] Figure 4 is Figure 1 a schematic view of the structure after hiding the module board, bellows cover, and protective cover. Figure 2 .
[0023] In the figure: 1. Total displacement drive mechanism; 11. Back plate; 111. Back plate reinforcement plate; 112. Top bellows cover mounting plate; 113. Tail bellows cover mounting plate; 114. Bellows cover; 12. Displacement drive unit; 121. Displacement motor; 122. Motor mounting plate I; 13. Tail end bearing seat; 14. Lead screw; 15. Lead screw nut seat; 16. Module board; 161. Dust-proof side baffle; 17. Constraint slide rail; 18. Constraint slider; 19. Pressing mechanism assembly; 191. Cylinder support plate; 192. Pressing cylinder; 193. Ferrule; 2. Total self-rotation drive mechanism; 21. Motor mounting plate II; 22. Self-rotation drive unit; 221. Self-rotation motor; 23. Bearing mounting seat; 24. Rotating shaft; 25. Spring collet assembly; 251. Spring collet; 252. Guide sleeve; 253. Clamping sleeve; 26. Protective cover; 3. Workbench; 4. Silicon carbide rod. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0024] In order to enable readers to better understand the design concept of the present utility model, the technical solutions described in the present utility model will be further described and explained below in conjunction with embodiments. It should be noted that the orientation terms that may be involved in the following paragraphs, including but not limited to "upper, lower, left, right, front, and back", are all based on the visual orientation shown in the corresponding specification drawings. It should not and should not be regarded as a limitation on the protection scope or technical solution of the present utility model. Its purpose is only to facilitate those skilled in the art to better understand the technical solutions described in the present utility model.
[0025] In the description of this specification, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0026] Embodiment 1:
[0027] As Figures 1 to 4 shown, this embodiment provides a dynamic self-rotation driving device for silicon carbide rods, which includes a displacement driving mechanism assembly 1 and a self-rotation driving mechanism assembly 2. Among them, the displacement driving mechanism assembly 1 includes a back plate 11 fixed on a workbench 3 and a displacement driving unit 12 fixed on the back plate 11. A lead screw 14 is also provided on the back plate 11, one end of which is in transmission connection with the displacement driving unit 12 and the other end is in bearing connection with a tail-end bearing seat 13 fixed on the back plate 11. A lead screw nut seat 15 is threadedly connected to the lead screw 14, and a module plate 16 is fixed on the lead screw nut seat 15. A constraint slide rail 17 fixed on the back plate 11 is provided on one side of the lead screw nut seat 15, and a constraint slider 18 is slidably provided on the constraint slide rail 17. The constraint slider 18 is fixedly connected to the module plate 16. A pressing mechanism assembly 19 for pressing the silicon carbide rod 4 is fixedly provided above the module plate 16.
[0028] The self-rotation driving mechanism assembly 2 includes a motor mounting plate two 21 fixed on the module plate 16 for supporting a self-rotation driving unit 22. The self-rotation driving unit 22 drives a rotating shaft 24 that is in bearing connection with a bearing mounting seat 23. A spring collet assembly 25 for clamping the silicon carbide rod 4 is fixedly installed at the head of the rotating shaft 24.
[0029] The working process of this embodiment is as follows: The silicon carbide rod 4 is installed on the spring collet assembly 25, and the pressing mechanism assembly 19 is started to press the silicon carbide rod 4 by using the pressing mechanism assembly 19. The displacement driving unit 12 is started. Under the action of the displacement driving unit 12, the lead screw 14 rotates. The lead screw nut seat 15 threadedly connected to the lead screw 14 is fixedly connected to the constraint slider 18 through the module plate 16. Therefore, the lead screw nut seat 15 can only move up and down and cannot move circumferentially. The up and down movement of the lead screw nut seat 15 drives the module plate 16 to move up and down, and the pressing mechanism assembly 19 and the self-rotation driving mechanism assembly 2 fixed on the module plate 16 also move up and down accordingly, so as to realize the axial movement of the silicon carbide rod 4. At the same time, the self-rotation driving unit 22 is started, and the self-rotation driving unit 22 drives the rotating shaft 24 to make a rotational movement, so as to realize the self-rotation movement of the silicon carbide rod 4.
[0030] This embodiment has a unique design, which enables the silicon carbon rod to move axially and rotate synchronously at the same time; that is, the utility model can drive the silicon carbon rod to perform two movements at the same time: one is linear movement along its axial direction, and the other is rotational movement around its own axis. This composite movement mechanism ensures that the stress generated by the blade on the silicon carbon rod is evenly and stably distributed, thereby significantly reducing the risk of chipping during the texture cutting process of the silicon carbon rod;
[0031] The structural design of this embodiment is simple and compact, small and flexible, and occupies little space;
[0032] This embodiment can be widely used in the silicon carbon rod manufacturing industry, and has positive significance in the field of silicon carbon rod texture forming technology.
[0033] Embodiment 2:
[0034] On the basis of the above-mentioned embodiments, this embodiment continues to describe in detail the technical features involved therein and the functions and roles played by the technical features in the present utility model, so as to help technicians in this field to fully understand the technical solution of the present utility model and reproduce it.
[0035] like Figures 1 to 4 As shown, this embodiment provides a silicon carbon rod dynamic self-rotation drive device, including a displacement drive mechanism assembly 1 and a self-rotation drive mechanism assembly 2; wherein, the displacement drive mechanism assembly 1 includes a back plate 11 fixed on the workbench 3 and a displacement drive unit 12 fixed on the back plate 11. The displacement drive unit 12 includes a displacement motor 121, which drives the screw 14 by a transmission method of a synchronous wheel and a synchronous belt, and the displacement motor 121 is fixed on the back plate 11 via a motor mounting plate 122; both sides of the back plate 11 are fixed with a back plate reinforcement plate 111 arranged in a perpendicular direction thereto, and the back plate reinforcement plate 111 is mainly used to enhance the mechanical strength of the entire device. The back plate 11 is also provided with a screw rod 14, one end of which is transmission-connected with the displacement driving unit 12 and the other end of which is bearing-connected with the tail end bearing seat 13 fixed on the back plate 11. The screw rod 14 is threadedly connected with a screw rod nut seat 15, and a module plate 16 is fixedly provided on the screw rod nut seat 15. Both sides of the module plate 16 are fixedly provided with dust-proof side baffles 161 arranged in a perpendicular direction thereto. A constraint slide rail 17 fixed on the back plate 11 is provided on one side of the screw rod nut seat 15, and a constraint slider 18 is slidably provided on the constraint slide rail 17, and the constraint slider 18 is fixedly connected to the module plate 16; a clamping mechanism assembly 19 for clamping the silicon carbon rod 4 is fixedly provided above the module plate 16; the clamping mechanism assembly 19 includes a clamping cylinder 192 fixed on the module plate 16 via a cylinder support plate 191, and a clamping sleeve 193 is fixedly installed on the end plate of the clamping cylinder 192, and the vertical center line of the clamping sleeve 193 is collinear with the vertical center line of the spring chuck assembly 25.
[0036] The self-rotation drive mechanism assembly 2 includes a second motor mounting plate 21 fixed on the module plate 16 for supporting the self-rotation drive unit 22. The self-rotation drive unit 22 drives a rotating shaft 24 that is bearing-connected to a bearing mounting seat 23. A spring chuck assembly 25 for clamping the silicon carbide rod 4 is fixedly installed at the head of the rotating shaft 24. The self-rotation drive unit 22 includes a self-rotation motor 221, and the self-rotation motor 221 drives the rotating shaft 24 by means of a synchronous pulley and a synchronous belt transmission. The spring chuck assembly 25 includes a spring chuck 251 sleeved with a clamping sleeve 253, and the end of the spring chuck 251 is fixedly connected to the rotating shaft 24 through a guide sleeve 252. The spring chuck assembly 25 is an existing complete set of components and is commonly used in the machine tool industry for clamping cutting tools. The space between the second motor mounting plate 21 and the bearing mounting seat 23 is covered by a protective cover 26.
[0037] In this embodiment, a top bellows cover mounting plate 112 is fixedly provided at the top position of the back plate 11, and a tail bellows cover mounting plate 113 is fixedly provided at the bottom position of the back plate 11; Bellows covers 114 for protection are provided between the top bellows cover mounting plate 112 and the upper end surface of the module plate 16, and between the lower end surface of the module plate 16 and the tail bellows cover mounting plate 113.
[0038] The working process of this embodiment is as follows: The silicon carbide rod 4 is installed on the spring chuck assembly 25, and the pressing cylinder 192 is started. The piston rod of the pressing cylinder 192 pushes the clamping sleeve 193 downward to press the silicon carbide rod 4. Subsequently, the displacement motor 121 is started, and the displacement motor 121 drives the lead screw 14 to rotate through a synchronous pulley and a synchronous belt; The lead screw nut seat 15 threadedly connected to the lead screw 14 is fixedly connected to the restraint slider 18 through the module plate 16. Therefore, the lead screw nut seat 15 can only move up and down and cannot move circumferentially. The up and down movement of the lead screw nut seat 15 drives the module plate 16 to move up and down, and the pressing mechanism assembly 19 and the self-rotation drive mechanism assembly 2 fixed on the module plate 16 also move up and down accordingly, thereby realizing the axial movement of the silicon carbide rod 4. At the same time, the self-rotation motor 221 is started, and the self-rotation motor 221 drives the rotating shaft 24 and the spring chuck 251 to perform a rotational movement by means of a synchronous pulley and a synchronous belt transmission, thereby realizing the self-rotation movement of the silicon carbide rod 4.
[0039] This embodiment has a unique design and realizes the synchronous self-rotation of the silicon carbide rod while it is moving axially; that is, the utility model can drive the silicon carbide rod to perform two kinds of movements simultaneously: one is a linear movement along its axis, and the other is a rotational movement around its own axis. This compound movement mechanism ensures that the stress distribution generated by the blade on the silicon carbide rod is uniform and stable, thereby significantly reducing the risk of fragmentation during the texture cutting process of the silicon carbide rod;
[0040] The structural design of this embodiment is simple, compact, small and flexible, and occupies little space;
[0041] This embodiment can be widely applied to the silicon carbide rod manufacturing industry and has positive significance in the field of silicon carbide rod texture forming technology.
[0042] In summary, the above are only the preferred embodiments of the present utility model and are not intended to limit the scope of implementation of the present utility model. Any equivalent changes and modifications made in accordance with the shape, structure, features, and spirit of the scope of the claims of the present utility model shall be included within the scope of the claims of the present utility model.
Claims
1. A silicon carbon rod dynamic rotation driving device, characterized in that: It comprises a displacement drive mechanism assembly (1) and a rotation drive mechanism assembly (2); The displacement drive mechanism assembly (1) comprises a back plate (11) fixed on the workbench (3) and a displacement drive unit (12) fixed on the back plate (11); the back plate (11) is also provided with a screw rod (14) having one end drivingly connected to the displacement drive unit (12) and the other end bearing-connected to a tail end bearing seat (13) fixed on the back plate (11); the screw rod (14) is threadedly connected to a screw rod nut seat (15); a module plate (16) is fixedly provided on the screw rod nut seat (15); a constraint slide rail (17) fixed on the back plate (11) is provided on one side of the screw rod nut seat (15); a constraint slide block (18) is slidably provided on the constraint slide rail (17); the constraint slide block (18) is fixedly connected to the module plate (16); a clamping mechanism assembly (19) for clamping the silicon carbon rod (4) is fixedly provided above the module plate (16); The self-rotation drive mechanism assembly (2) comprises a second motor mounting plate (21) fixed on the module plate (16) and used to support a self-rotation drive unit (22); the self-rotation drive unit (22) drives a rotating shaft (24) connected to a bearing of a bearing mounting seat (23); a spring chuck assembly (25) for clamping a silicon carbon rod (4) is fixedly mounted on the head of the rotating shaft (24).
2. A silicon carbon rod dynamic rotation driving device according to claim 1, characterized in that: The clamping mechanism assembly (19) comprises a clamping cylinder (192) fixed to the die plate (16) via a cylinder support plate (191), a clamping sleeve (193) being fixedly mounted on the end plate of the clamping cylinder (192), and a vertical center line of the clamping sleeve (193) being colinear with a vertical center line of the spring clamp assembly (25).
3. A silicon carbon rod dynamic rotation driving device according to claim 1, characterized in that: The spring chuck assembly (25) comprises a spring chuck (251) sleeved with a clamping sleeve (253); the end of the spring chuck (251) is fixedly connected to the rotating shaft (24) via a guide sleeve (252).
4. A silicon carbon rod dynamic rotation driving device according to claim 1, characterized in that: Back plate reinforcement plates (111) arranged in a perpendicular direction to the back plate (11) are fixedly provided on both sides; and dustproof side baffles (161) arranged in a perpendicular direction to the module plate (16) are fixedly provided on both sides.
5. The silicon carbon rod dynamic rotation driving device according to claim 1, characterized in that: The displacement drive unit (12) comprises a displacement motor (121), the displacement motor (121) drives the screw rod (14) by means of a transmission method of a synchronous wheel and a synchronous belt, and the displacement motor (121) is fixed to the back plate (11) via a motor mounting plate 1 (122); the rotation drive unit (22) comprises a rotation motor (221), and the rotation motor (221) drives the rotating shaft (24) by means of a transmission method of a synchronous wheel and a synchronous belt.
6. The silicon carbon rod dynamic rotation driving device according to claim 1, characterized in that: The motor mounting plate 2 (21) and the bearing mounting seat (23) are sealed by a protective cover (26).
7. The silicon carbon rod dynamic rotation driving device according to claim 1, characterized in that: A top accordion cover mounting plate (112) is fixedly provided at the top position of the back plate (11), and a rear accordion cover mounting plate (113) is fixedly provided at the bottom position of the back plate (11); an accordion cover (114) having a protective function is provided between the top accordion cover mounting plate (112) and the upper end surface of the module plate (16), and between the lower end surface of the module plate (16) and the rear accordion cover mounting plate (113).