Transmission system for rotary tube furnace

Abstract

The transmission system comprises a motor, a driving wheel and a driven wheel mechanism, the driving wheel and a rotating shaft of the motor are fixedly installed, the driven wheel mechanism comprises a driven wheel assembly, a first connecting shaft and a first adjusting assembly, a first strip-shaped hole is formed in a shell of the tubular furnace, and a second strip-shaped hole is formed in the shell of the tubular furnace. One end of the first connecting shaft is installed on the shell through the first strip-shaped hole, the first adjusting assembly is used for pushing the first connecting shaft to move along the first strip-shaped hole, the driven wheel assembly is rotatably installed on the first connecting shaft and engaged with the gear ring, and the motor is used for driving the driving wheel to rotate. The driving wheel drives the driven wheel assembly to rotate through the synchronous belt and then drives the gear ring to rotate. According to the transmission system for the rotary tube furnace, the rotation stability of the furnace body is improved by adopting a multi-stage transmission mode, and the transmission system is adjustable, so that the transmission system can be conveniently matched with the furnace body, and a space is reserved for thermal expansion of the furnace body.

Description

Technical Field

[0001] The utility model belongs to the technical field of rotary tube furnaces, and in particular relates to a transmission system for rotary tube furnaces. Background Art

[0002] The existing rotary tube furnaces are costly, occupy a large area, have high requirements for plant environment and supporting facilities, and consume a lot of manpower for operation and maintenance, which makes them unsuitable for use by small and medium-sized enterprises. Some manufacturers directly miniaturize the furnace body based on the original rotary tube furnace to meet the needs of small and medium-sized enterprises. However, the sprocket drive system used in the original large rotary tube furnace is no longer applicable due to the large space occupied and the change of equipment structure. In addition, since the small rotary tube furnace does not use the steel furnace body used in the traditional large rotary tube furnace, but uses a quartz glass cylinder, it has higher requirements for transmission stability. After the rotary tube furnace is miniaturized, the cylinder still maintains a semi-constrained design (space needs to be left for thermal expansion), so the transmission system also needs to reserve space and adjustable structure for this.

[0003] Therefore, in view of the above technical problems, it is necessary to provide a transmission system for a rotary tube furnace.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The utility model aims to provide a transmission system for a rotary tube furnace, which can solve the problems of the traditional transmission system being unstable, too large and difficult to adjust.

[0006] In order to achieve the above-mentioned purpose, a specific embodiment of the utility model provides a transmission system for a rotary tube furnace, the rotary tube furnace includes a shell for installing the transmission system and a furnace body rotatably mounted on the shell, a gear ring is fixedly mounted on the furnace body, and the furnace body can rotate synchronously with the gear ring, the transmission system includes a motor, a driving wheel and a driven wheel mechanism, the driving wheel is fixedly mounted on the motor shaft, the driven wheel mechanism includes a driven wheel assembly, a first connecting shaft and a first adjusting assembly, a first strip hole is opened on the shell, one end of the first connecting shaft is mounted on the shell through the first strip hole, the first adjusting assembly is used to push the first connecting shaft to move along the first strip hole, the driven wheel assembly is rotatably mounted on the first connecting shaft, the driven wheel assembly is meshed with the gear ring, the motor is used to drive the driving wheel to rotate, and the driving wheel drives the driven wheel assembly to rotate through a synchronous belt, and then drives the gear ring to rotate.

[0007] In one or more embodiments of the present invention, the driven wheel assembly includes a synchronous wheel and a gear rotatably mounted on the first connecting shaft, the synchronous wheel and the gear are fixedly mounted, the gear is meshed with the gear ring, and the driving wheel drives the synchronous wheel to rotate through a synchronous belt, and then drives the gear to rotate.

[0008] In one or more embodiments of the present utility model, the first adjustment component includes a first mounting frame and a first adjustment member, the first mounting frame is fixedly mounted on the shell, a second strip hole corresponding to the first strip hole is opened on the first mounting frame, the first connecting shaft passes through the second strip hole at the same time, the first adjustment member is movably mounted on the first mounting frame, and the first adjustment member can push the first connecting shaft to move in the second strip hole.

[0009] In one or more embodiments of the present invention, a first abutting surface abutting against the first adjusting member is provided on the first connecting shaft.

[0010] In one or more embodiments of the present invention, the first strip-shaped hole extends toward the gear ring.

[0011] In one or more embodiments of the present invention, a mounting ring is fixedly installed on one side of the gear ring, a limiting groove wheel is installed on the driven wheel assembly, the outer peripheral edge of the mounting ring is embedded in the annular groove of the limiting groove wheel, and the annular groove of the limiting groove wheel is used to limit the axial movement of the mounting ring.

[0012] In one or more embodiments of the present invention, at least two driven wheel mechanisms are arranged around the gear ring.

[0013] In one or more embodiments of the present utility model, the transmission system also includes an idler wheel assembly for adjusting the tension of the synchronous belt, the idler wheel assembly includes an idler wheel, a second connecting shaft and a second adjustment assembly, a third strip hole is opened on the shell, one end of the second connecting shaft is installed on the shell through the third strip hole, the second adjustment assembly is used to push the second connecting shaft to move along the third strip hole, and the idler wheel is rotatably installed on the second connecting shaft.

[0014] In one or more embodiments of the present invention, the second adjustment component includes a second mounting frame and a second adjustment member, the second mounting frame is fixedly mounted on the shell, the second mounting frame is provided with a fourth strip hole corresponding to the third strip hole, the second connecting shaft passes through the fourth strip hole at the same time, the second adjustment member is movably mounted on the second mounting frame, and the second adjustment member can push the second connecting shaft to move in the fourth strip hole.

[0015] In one or more embodiments of the present invention, a second abutting surface abutting against the second adjusting member is provided on the second connecting shaft.

[0016] Compared with the prior art, the transmission system for the rotary tube furnace of the utility model adopts a multi-stage transmission method to improve the stability of the furnace body rotation, and the transmission system is designed to be adjustable, which is convenient for the transmission system to match the furnace body and leaves space for the thermal expansion of the furnace body. By using a synchronous belt and a synchronous wheel as the primary transmission and a gear as the secondary transmission, the transmission is smoother and the quartz glass tube will not be broken due to unstable transmission. By integrating the synchronous wheel, gear and limit groove, the complexity of the structure and the space occupied are greatly reduced, making the overall equipment more compact and in line with the design concept of miniaturization. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of a transmission system installed on a rotary tube furnace in one embodiment of the utility model.

[0019] Figure 2 It is a structural schematic diagram of a transmission system in one embodiment of the utility model.

[0020] Figure 3 It is another structural schematic diagram of the transmission system in one embodiment of the utility model.

[0021] Figure 4 It is a schematic structural diagram of a shell in one embodiment of the utility model.

[0022] Figure 5 It is a structural schematic diagram of the first adjustment component in one embodiment of the utility model.

[0023] Figure 6 It is another structural schematic diagram of the first adjustment component in one embodiment of the utility model. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0025] In the present utility model, words such as "first" and "second" are mainly used to distinguish one technical feature from another technical feature, and do not necessarily require or imply that there is a certain actual relationship, quantity or order between these technical features.

[0026] like Figures 1 to 3 As shown, a transmission system for a rotary tube furnace in an embodiment of the utility model comprises a housing 10 for mounting the transmission system and a furnace body 20 rotatably mounted on the housing 10, a gear ring 21 is fixedly mounted on the furnace body 20, and the furnace body 20 can rotate synchronously with the gear ring 21. The transmission system comprises a motor 30, a driving wheel 40, a driven wheel mechanism 50 and an idler wheel assembly 60.

[0027] like Figures 2 to 4 As shown, the driving wheel 40 is fixedly installed with the rotating shaft of the motor 30, and two driven wheel mechanisms 50 are symmetrically arranged around the gear ring 21. The driven wheel mechanism 50 includes a driven wheel assembly 51, a first connecting shaft 52 and a first adjusting assembly 53. Two first strip holes 11 are opened on the shell 10, and one end of the first connecting shaft 52 is installed on the shell 10 through the corresponding first strip holes 11. The first adjusting assembly 53 is used to push the first connecting shaft 52 to move along the first strip holes 11. The driven wheel assembly 51 is rotatably installed on the first connecting shaft 52, and the driven wheel assembly 51 is meshed with the gear ring 21. The motor 30 is used to drive the driving wheel 40 to rotate. The driving wheel 40 drives the two driven wheel assemblies 51 to rotate through the synchronous belt 70, and the two driven wheel assemblies 51 simultaneously drive the gear ring 21 to rotate.

[0028] like Figure 3 As shown, the driven wheel assembly 51 includes a synchronous wheel 511 and a gear 512 rotatably mounted on the first connecting shaft 52. The synchronous wheel 511 and the gear 512 are fixedly mounted, and the gear 512 is meshed with the gear ring 21. A synchronous belt 70 is wound between the synchronous wheel 511 and the driving wheel 40. The driving wheel 40 drives the synchronous wheel 511 to rotate through the synchronous belt 70, and then drives the gear 512 to rotate. The gears 512 of the two driven wheel assemblies 51 simultaneously drive the gear ring 21 to rotate.

[0029] By using the synchronous wheel 511 and the synchronous belt 70 as the primary transmission and the gear ring 21 and the gear 512 as the secondary transmission, it is more stable than the sprocket chain transmission used in large rotary furnaces and will not cause the quartz glass furnace body to break due to unstable transmission.

[0030] A mounting ring 22 is fixedly installed on one side of the gear ring 21, and a limiting groove wheel 513 is fixedly installed on one side of each gear 512. The limiting groove wheel 513 and the synchronous wheel 511 are located on both sides of the gear 512. The outer peripheral edge of the first mounting ring 22 is embedded in the annular groove of the limiting groove wheel 513. The annular groove of the limiting groove wheel 513 is used to limit the axial movement of the first mounting ring 22, thereby limiting the axial movement of the quartz tube 20.

[0031] By assembling the synchronous wheel 511, the gear 512 and the limit groove wheel 513 coaxially, the common parts are integrated to realize the functions of secondary transmission and limit, which greatly reduces the complexity of the structure and the space occupied, making the device more compact and easy to install, and conforming to the design concept of miniaturization. In other embodiments, the limit groove can also be constructed by slotting the gear 512.

[0032] like Figure 3 , Figure 4 and Figure 6 As shown, in one embodiment, a threaded hole is provided at one end of the first connecting shaft 52, and the threaded column of the bolt 521 is screwed into the threaded hole by passing through the first strip hole 11 from the other side of the first strip hole 11. Since the shaft diameter of the first connecting shaft 52 is larger than the width of the first strip hole 11 and the head of the bolt 521 is larger than the width of the first strip hole 11, when the threaded column of the bolt 521 is screwed into the threaded hole, the head of the bolt 521 and the first connecting shaft 52 can be mounted on the housing 10 in a clamping manner through the cooperation of the head of the bolt 521 and the first connecting shaft 52. In other embodiments, the first connecting shaft 52 and the bolt 521 can have different fixed connection methods, and the first connecting shaft 52 can also be mounted on the housing 10 through the first strip hole 11 in other ways, and it is only necessary to satisfy that the first connecting shaft 52 can move along the first strip hole 11.

[0033] like Figure 4 As shown, in one embodiment, two first strip holes 11 are symmetrically opened in an "eight" shape on the housing 10, that is, each first strip hole 11 extends toward the gear ring 21. In other embodiments, the direction of the first strip holes 11 can be adjusted according to the specific location and number of the driven wheel assembly 51.

[0034] like Figure 3 , Figure 5 and Figure 6As shown, the first adjusting component 53 includes a first mounting frame 531 and a first adjusting member 532. The first mounting frame 531 is located between the synchronous wheel 331 and the housing 10. The first mounting frame 531 is fixedly mounted on the housing 10. A second strip hole 533 corresponding to the first strip hole 11 is opened on the first mounting frame 531. The first connecting shaft 52 passes through the second strip hole 533 on the first mounting frame 531 and then passes through the first strip hole 11 to be installed with the bolt 521. An internal threaded hole is provided on one side of the first mounting frame 531. An external thread is provided on the first adjusting member 532. The first adjusting member 532 is threadedly matched with the internal threaded hole and by screwing the first adjusting member 532, one end of the first adjusting member 532 can pass through the internal threaded hole and extend into the first mounting frame 531 to abut against the side wall of the first connecting shaft 52, so that by continuing to screw the first adjusting member 532, the first connecting shaft 52 can be pushed to move along the length direction of the first strip hole 11 and the second strip hole 533.

[0035] A first abutting surface 522 abutting against the first adjusting member 532 is arranged on the side wall of the first connecting shaft 52. The setting of the first abutting surface 522 enables the first adjusting member 532 to stably provide thrust to the first connecting shaft 52, ensuring that the first connecting shaft 52 moves in a specified direction without the first connecting shaft 52 itself rotating.

[0036] By setting the first adjustment component 53, the position of the driven wheel component 51 can be adjusted, and space is reserved for the installation and matching of the driven wheel component 51 with the quartz tube 20, the gear ring 21 and the mounting ring 22. It can adapt to the size differences of different quartz tubes 20 and gear rings 21, adjust the height of the quartz tube 20 and the tightness of the meshing between the gear 512 and the gear ring 21, and also leave space for the thermal expansion of the quartz tube 20.

[0037] like Figures 2 to 4 As shown, the idler assembly 60 is located below between the two driven wheel assemblies 50 and above the driving wheel 40. The idler assembly 60 includes an idler 61, a second connecting shaft 62 and a second adjustment assembly 63. A third strip hole 12 is opened on the shell 10. One end of the second connecting shaft 62 is installed on the shell 10 through the third strip hole 12. The second adjustment assembly 63 is used to push the second connecting shaft 62 to move along the third strip hole 12. The idler 61 is rotatably installed on the second connecting shaft 62.

[0038] Specifically, a threaded hole is provided at one end of the second connecting shaft 62, and the threaded column of the bolt is passed through the third strip hole 12 from the other side of the third strip hole 12 and screwed into the threaded hole. Since the axial diameter of the second connecting shaft 62 is larger than the width of the third strip hole 12 and the head of the bolt is larger than the width of the third strip hole 12, when the threaded column of the bolt is screwed into the threaded hole, it can be mounted on the housing 10 by clamping through the cooperation of the head of the bolt and the second connecting shaft 62.

[0039] In one embodiment, the third strip-shaped hole 12 is vertically opened on the housing 10. In other embodiments, the direction of the third strip-shaped hole 12 can be adjusted according to the specific location and quantity of the synchronous belt 70 and the idler wheel 61.

[0040] The second adjustment component 63 includes a second mounting frame and a second adjustment member. The second adjustment member is located above the second connecting shaft 62. The second mounting frame is fixedly mounted on the housing. The second mounting frame is provided with a fourth strip hole corresponding to the third strip hole 12. The second connecting shaft 62 vertically passes through the fourth strip hole at the same time. The second adjustment member is movably mounted on the second mounting frame. The second adjustment member can push the second connecting shaft to move in the fourth strip hole. The specific structure of the second adjustment component 63 is the same as that of the first adjustment component 53, except that the direction of the applied force is different. The second connecting shaft 62 can be moved downward in the vertical direction for adjustment through the second adjustment component 63.

[0041] Similar to the first connecting shaft 52, a second abutting surface abutting against the second adjusting member is arranged on the side wall of the second connecting shaft 62. The arrangement of the second abutting surface enables the second adjusting member to stably provide thrust to the second connecting shaft 62, thereby ensuring that the second connecting shaft 62 moves in a specified direction and the second connecting shaft 62 itself does not rotate.

[0042] A synchronous belt 70 is wound around the bottom of the idler wheel 61. The idler wheel 61 can change the transmission direction of the synchronous belt 70 between the driven wheel assembly 51, increase the contact area between the synchronous belt 70 and the synchronous wheel 511, and enable the synchronous belt 70 to drive the synchronous wheel 511 to rotate to the greatest extent. The idler wheel 61 is moved downward by the second adjustment assembly 63 to tighten the synchronous belt 70, and increase the friction between the synchronous belt 70 and the synchronous wheel 511 and the driving wheel 40.

[0043] In other embodiments, one or more driven wheel mechanisms 50 may be provided, and the number of idler wheel assemblies 60 may be adjusted accordingly.

[0044] like Figure 2 As shown, a supporting wheel 80 is also rotatably mounted on the shell 10. The supporting wheel 80 is arranged at the bottom of the furnace body 20 to support the furnace body 20 and ensure that the furnace body 20 remains stable during rotation. The supporting wheel 80 is in direct contact with the furnace body 20 and can rotate synchronously with the furnace body 20 through friction while the furnace body 20 rotates, which can provide uniform support force to the bottom of the furnace body 20 and will not hinder the rotation of the furnace body 20. The supporting wheel 80 is rotatably mounted on the third connecting shaft. A fourth strip hole is also provided on the shell 10. The third connecting shaft is mounted on the shell 10 through the fourth strip hole in the same way as the first connecting shaft 52 is mounted on the shell 10 through the first strip hole 11.

[0045] In one embodiment, three support wheels 80 are symmetrically arranged around the bottom of the furnace body 20 , two fourth strip holes located on both sides are symmetrically opened on the shell 10 in an "eight" shape, and the middle fourth strip hole is vertically opened on the shell 10 .

[0046] The housing 10 is also provided with a third adjusting assembly for pushing the third connecting shaft to move along the fourth strip hole. The third adjusting assembly has the same structure as the first adjusting assembly 53, but the direction of the force applied is different. The third connecting shaft can be moved and adjusted along the fourth strip hole toward the furnace body 20 through the third adjusting assembly.

[0047] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0048] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A transmission system for a rotary tube furnace, the rotary tube furnace comprising a housing for mounting the transmission system and a furnace body rotatably mounted on the housing, a gear ring being fixedly mounted on the furnace body, the furnace body being capable of rotating synchronously with the gear ring, characterized in that: The transmission system includes a motor, a driving wheel and a driven wheel mechanism, the driving wheel is fixedly mounted on the motor shaft, the driven wheel mechanism includes a driven wheel assembly, a first connecting shaft and a first adjusting assembly, a first strip hole is opened on the shell, one end of the first connecting shaft is mounted on the shell through the first strip hole, the first adjusting assembly is used to push the first connecting shaft to move along the first strip hole, the driven wheel assembly is rotatably mounted on the first connecting shaft, the driven wheel assembly is meshed with the gear ring, the motor is used to drive the driving wheel to rotate, the driving wheel drives the driven wheel assembly to rotate through a synchronous belt, and then drives the gear ring to rotate.

2. The transmission system for a rotary tube furnace according to claim 1, characterized in that: The driven wheel assembly includes a synchronous wheel and a gear rotatably mounted on the first connecting shaft. The synchronous wheel and the gear are fixedly mounted, the gear is meshed with the gear ring, and the driving wheel drives the synchronous wheel to rotate through a synchronous belt, and then drives the gear to rotate.

3. The transmission system for a rotary tube furnace according to claim 1, characterized in that: The first adjustment component includes a first mounting frame and a first adjustment member. The first mounting frame is fixedly mounted on the shell. The first mounting frame is provided with a second strip hole corresponding to the first strip hole. The first connecting shaft passes through the second strip hole at the same time. The first adjustment member is movably mounted on the first mounting frame. The first adjustment member can push the first connecting shaft to move in the second strip hole.

4. The transmission system for a rotary tube furnace according to claim 3, characterized in that: The first connecting shaft is provided with a first abutting surface abutting against the first adjusting member.

5. The transmission system for a rotary tube furnace according to claim 1, characterized in that: The first strip-shaped hole extends toward the gear ring.

6. The transmission system for a rotary tube furnace according to claim 1, characterized in that: A mounting ring is fixedly mounted on one side of the gear ring, a limiting groove wheel is mounted on the driven wheel assembly, the outer periphery of the mounting ring is embedded in the annular groove of the limiting groove wheel, and the annular groove of the limiting groove wheel is used to limit the axial movement of the mounting ring.

7. The transmission system for a rotary tube furnace according to claim 1, characterized in that: At least two driven wheel mechanisms are arranged around the gear ring.

8. The transmission system for a rotary tube furnace according to claim 1, characterized in that: The transmission system also includes an idler wheel assembly for adjusting the tension of the synchronous belt, the idler wheel assembly includes an idler wheel, a second connecting shaft and a second adjustment assembly, a third strip hole is opened on the shell, one end of the second connecting shaft is installed on the shell through the third strip hole, the second adjustment assembly is used to push the second connecting shaft to move along the third strip hole, and the idler wheel is rotatably installed on the second connecting shaft.

9. The transmission system for a rotary tube furnace according to claim 8, characterized in that: The second adjustment component includes a second mounting frame and a second adjustment member. The second mounting frame is fixedly mounted on the shell. The second mounting frame is provided with a fourth strip hole corresponding to the third strip hole. The second connecting shaft passes through the fourth strip hole at the same time. The second adjustment member is movably mounted on the second mounting frame. The second adjustment member can push the second connecting shaft to move in the fourth strip hole.

10. The transmission system for a rotary tube furnace according to claim 9, characterized in that: The second connecting shaft is provided with a second abutting surface abutting against the second adjusting member.

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