Energy-saving air blower for roasting furnace

Abstract

The invention relates to the technical field of air blowers, in particular to an energy-saving air blower for a roasting furnace, which comprises a shell and a driving frame rotationally arranged in the shell, a plurality of impeller blades are arranged on the driving frame, a driving disc is arranged on the driving frame, and a connecting rod assembly is arranged on the driving disc; an air inlet pipe is arranged on the shell; a fixing disc is arranged on the air inlet pipe, an adjusting mechanism is arranged on the fixing disc, the adjusting mechanism comprises a worm gear and a worm, angle adjustment is achieved on impeller blades, the air volume adjusting function is directly integrated in an impeller area, and indirect influences of adjustment of a traditional diffuser on the air volume are avoided; and the self-locking characteristic of the worm gear and the worm is utilized to ensure that the adjusted impeller blade angle does not deviate under the influence of vibration or external force, and the stability is enhanced. And the driving disc can be driven by the adjusting mechanism in the process of rotating along with the driving frame. The purposes of optimizing an airflow path, reducing energy loss and improving the overall efficiency of the air blower are achieved through angle adjustment of the impeller blades.

Description

Technical Field

[0001] The invention relates to the technical field of blowers, and in particular to an energy-saving blower used in a roasting furnace. Background Art

[0002] In modern industry, roasting furnaces are widely used in inorganic powder synthesis, calcination, ceramic sintering, metal melting and heat treatment processes, and are essential and important equipment. As the core auxiliary equipment of roasting furnaces, blowers are mainly used for gas circulation during heating and combustion processes. By generating airflow, the materials in the furnace are evenly heated to the required temperature, thereby achieving the purpose of roasting.

[0003] In the prior art, Chinese patent CN204299962U discloses a diffuser blade adjustment mechanism for a high-speed centrifugal blower. The patent realizes the adjustment of the diffuser blade angle through structures such as a control ring, a support pulley, front and rear side plates of the diffuser, and a transmission group. Specifically, the blades are installed between the front and rear side plates of the diffuser through an arc groove and a central axis, the transmission group connects the blades through a keyway, and the pulley drives the control ring to move, thereby adjusting the blade angle. This design has the characteristics of small adjustment torque and flexible operation, and is suitable for improving the performance of centrifugal blowers under specific working conditions.

[0004] However, the adjustment blades of this design are limited to the diffuser component. The blades themselves do not produce rotational motion. Their main function is to change the airflow diffusion path and adjust the fan output characteristics. Although the above-mentioned diffuser blade adjustment mechanism optimizes the pressure diffusion performance of the centrifugal blower to a certain extent, the blades are only installed on the diffuser and cannot directly regulate the air volume output of the blower, and the functional application scope is limited. The diffuser blades are only used to adjust the airflow diffusion angle, and it is difficult to quickly respond to the air volume requirements of complex working conditions. Summary of the invention

[0005] In view of the above problems, an energy-saving blower for a roasting furnace is provided. The present invention realizes an adjustable angle on the impeller blades, and directly integrates the air volume adjustment function into the impeller area, thereby avoiding the indirect influence of the traditional diffuser adjustment on the air volume and significantly improving the adjustment efficiency of the blower. The self-locking characteristics of the worm gear are used to ensure that the adjusted impeller blade angle will not deviate under the influence of vibration or external force, thereby enhancing the operating stability. The drive disk can be driven by the adjustment mechanism during the rotation of the drive frame. The airflow path is optimized through the adjustment of the impeller blades, the energy loss is reduced, the overall efficiency of the blower is improved, and a technical guarantee is provided for the energy-saving operation of the roasting furnace.

[0006] To solve the problems of the prior art, the present invention provides an energy-saving blower for a roasting furnace, comprising a shell and a driving frame rotatably arranged in the shell, the driving frame being provided with a plurality of impeller blades arranged around the axis of the driving frame, the impeller blades being provided with a rotating shaft, the impeller blades being rotatable around the axis of the rotating shaft and being arranged on the driving frame; a rotatable driving disk being provided on the driving frame, the driving disk being provided with a connecting rod assembly for synchronously driving the rotating shafts of all the impeller blades to rotate; an air inlet pipe being extended along the axial direction of the driving frame being provided on the shell; a fixed disk being movable along the axial direction thereof being provided on the air inlet pipe, the fixed disk being provided with an adjusting mechanism that can rotate with the driving frame, the adjusting mechanism comprising a worm wheel for driving the driving disk to rotate, a worm being meshed and connected thereto being provided on the side of the worm wheel, the worm being drivingly connected to the fixed disk.

[0007] Preferably, there is a gap between the side of the driving frame close to the air inlet pipe and the shell, the air inlet pipe passes through the gap and is connected to the driving frame, the driving frame and the air inlet pipe divide the shell into an installation cavity and an air inlet cavity, and the adjustment mechanism is arranged in the installation cavity.

[0008] Preferably, a gear ring fixedly connected to the driving disk is provided on the side thereof, and the axis of the gear ring is coaxially arranged with the axis of the driving disk, and a first gear fixedly connected to the worm wheel is provided on the side thereof, and the axis of the first gear is coaxially arranged with the axis of the worm wheel, and the first gear is meshingly connected with the gear ring.

[0009] Preferably, the end of the worm is sleeved with a second gear, and a rack meshingly connected with the second gear is arranged beside the second gear. The rack can slide along the radial direction of the driving disk, and the rack is drivingly connected with the fixed disk.

[0010] Preferably, a mounting plate fixedly connected to the second gear is provided on the end of the rack away from the second gear, an inclined slide rail is provided on the mounting plate, a rotatable rotating disk is sleeved on the fixed disk, a fixed plate extending along the axial direction of the driving frame is provided on the rotating disk, a sliding rod matching the slide rail is provided on the end of the fixed plate close to the mounting plate, and the sliding rod is slidably arranged in the slide rail.

[0011] Preferably, the fixed disk is provided with a plurality of guide rods equidistantly surrounding its axis, the axes of the guide rods are parallel to the axis of the fixed disk, the plurality of guide rods all pass through the shell and slideably cooperate with it, a transmission disk is fixedly connected to one end of the plurality of guide rods away from the fixed disk, the axis of the transmission disk is coaxially arranged with the axis of the fixed disk, and a linear drive component for driving the transmission disk to move along the axial direction of the drive frame is provided on the shell.

[0012] Preferably, the linear drive assembly includes a screw, a first rotary drive motor and a support plate, the support plate is fixedly connected to one end of the air inlet duct away from the shell, the screw is rotatably arranged between the support plate and the shell, the screw passes through the transmission plate and cooperates with its thread, the first rotary drive motor is fixedly connected to the support plate, and the screw is transmission-connected to the output shaft of the first rotary drive motor.

[0013] Preferably, the portion of the air inlet pipe located in the installation cavity is provided with a plurality of slide grooves equidistantly surrounding its axis, the slide grooves extend along the axial direction of the air inlet pipe, and the inner edge of the fixed plate is provided with slide bars whose number is the same as and corresponds to the slide grooves, and the slide bars slide in cooperation with the slide grooves.

[0014] Preferably, the connecting rod assembly includes a first connecting rod and a second connecting rod, the number of which is the same as and corresponds to the impeller blades, the first connecting rod and the second connecting rod are hinged at one end close to each other, the end of the first connecting rod away from the second connecting rod is hinged to the rotating axis of the impeller blade, and the end of the second connecting rod away from the first connecting rod is hinged to the driving disk.

[0015] Preferably, there are a plurality of worm wheels and a plurality of worm shafts, and the plurality of worm wheels and the plurality of worm shafts are equidistantly arranged around the axis of the driving frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention integrates the air volume adjustment function directly into the impeller area by realizing an adjustable angle on the impeller blade, thus avoiding the indirect influence of the traditional diffuser adjustment on the air volume and significantly improving the adjustment efficiency of the fan. The impeller blade is installed on the drive frame and can rotate with the drive frame. At the same time, the impeller blade angle is dynamically adjusted through the adjustment mechanism, so that the airflow direction and air volume can be flexibly controlled when the impeller blade rotates, meeting the needs of multiple working conditions.

[0018] 2. The present invention adopts a worm gear transmission structure through the adjustment mechanism, realizes the impeller blade angle adjustment through the rotation of the driving disk, and uses the self-locking characteristics of the worm gear to ensure that the adjusted impeller blade angle will not deviate under the influence of vibration or external force, thereby enhancing the operation stability. The driving disk can be driven by the adjustment mechanism during the rotation of the driving frame. The airflow path is optimized through the impeller blade adjustment, the energy loss is reduced, the overall efficiency of the blower is improved, and the technical guarantee for the energy-saving operation of the roasting furnace is provided.

[0019] 3. The present invention sets a plurality of worms and worm wheels. The plurality of worm wheels and worms are evenly distributed around the driving frame, and each worm shares a certain load. This multi-point drive design ensures the smooth and uniform rotation of the driving disk. The equidistant distribution of the plurality of worm wheels and worms effectively disperses the driving load, avoids the torque concentration problem caused by single-point drive, and improves the stability and uniformity of the rotation of the driving disk. The multi-point drive design effectively reduces the vibration and imbalance problems that may occur in single-point drive, makes the equipment run more smoothly, and reduces the loss of parts caused by vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of an energy-saving blower used in a roasting furnace.

[0021] Figure 2 The present invention is a schematic diagram of the cross-sectional three-dimensional structure of an energy-saving blower used in a roasting furnace.

[0022] Figure 3 The present invention is a schematic diagram of the cross-sectional structure of an energy-saving blower used in a roasting furnace.

[0023] Figure 4 The present invention is a schematic diagram of the three-dimensional structure inside the shell of an energy-saving blower used in a roasting furnace.

[0024] Figure 5 A three-dimensional schematic diagram of the drive frame and adjustment mechanism of an energy-saving blower used in a roasting furnace Figure 1 .

[0025] Figure 6 The present invention is a three-dimensional structural diagram of an impeller blade and a driving frame in an energy-saving blower used in a roasting furnace.

[0026] Figure 7 A front view of an impeller and a drive frame of an energy-saving blower for a roasting furnace.

[0027] Figure 8 A three-dimensional schematic diagram of the drive frame and adjustment mechanism of an energy-saving blower used in a roasting furnace Figure 2 .

[0028] Fig. 9 A three-dimensional schematic diagram of the adjustment mechanism and impeller blades in an energy-saving blower for a roasting furnace Figure 1 .

[0029] Fig.10 A three-dimensional schematic diagram of the adjustment mechanism and impeller blades in an energy-saving blower for a roasting furnace Figure 2 .

[0030] Fig.11 The present invention is a three-dimensional structural schematic diagram of an air inlet pipe and a shell of an energy-saving blower used in a roasting furnace.

[0031] The numbers in the figure are:

[0032] 1. Shell; 11. Drive frame; 111. Impeller blade; 1111. Rotating shaft; 112. Drive disk; 1121. Connecting rod assembly; 11211. First connecting rod; 11212. Second connecting rod; 1122. Gear ring; 12. Air inlet pipe; 121. Slide groove; 13. Mounting cavity; 14. Air inlet cavity; 2. Fixed disk; 21. Adjusting mechanism; 211. Worm gear; 2111. First gear; 212. Worm; 2121. Second gear; 213. Rack; 2131. Mounting plate; 21311. Slide rail; 214. Rotating disk; 2141. Fixed plate; 21411. Sliding rod; 22. Guide rod; 221. Transmission disk; 23. Linear drive assembly; 231. Screw rod; 232. First rotary drive motor; 233. Support plate; 24. Slide bar. DETAILED DESCRIPTION

[0033] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] like Figures 1 to 7 As shown: An energy-saving blower for a roasting furnace comprises a housing 1 and a driving frame 11 rotatably arranged in the housing 1, a plurality of impeller blades 111 arranged around the axis of the driving frame 11 are arranged on the driving frame 11, a rotating shaft 1111 is arranged on the impeller blades 111, and the impeller blades 111 are rotatable around the axis of the rotating shaft 1111 and are arranged on the driving frame 11; a rotatable driving disk 112 is arranged on the driving frame 11, and a driving disk 112 is provided for synchronously driving all the impeller blades 111 The housing 1 is provided with an air inlet pipe 12 which can extend along the axial direction of the driving frame 11; the air inlet pipe 12 is provided with a fixed plate 2 which can move along its axial direction, and the fixed plate 2 is provided with an adjusting mechanism 21 which can rotate with the driving frame 11, and the adjusting mechanism 21 includes a worm gear 211 for driving the driving plate 112 to rotate, and a worm 212 which is meshed and connected with the worm gear 211 is provided on the side of the worm gear 211, and the worm 212 is transmission-connected to the fixed plate 2.

[0035] When the angle of the impeller blade 111 is small and close to the direction of the airflow, the airflow will pass through the impeller blade 111 more directly, and the wind resistance will be small, so the air volume will be relatively large. When the angle of the impeller blade 111 is large, that is, when the impeller deviates from the direction of the airflow, the path of the airflow through the blade will become tortuous, increasing the flow resistance and resulting in a reduction in air volume. By changing the angle of the impeller blade 111, the airflow can be optimized and the efficiency of the fan can be improved. For example, by adjusting the impeller angle to adapt it to a specific working condition, such as when a smaller air volume is required, energy waste can be reduced, thereby achieving the purpose of energy saving. Lowering the angle of the impeller blade 111 can reduce the resistance of the airflow, thereby improving energy efficiency.

[0036] The impeller blade 111 of the blower provides a blowing function through the rotation of the driving frame 11. To meet the air volume requirements under different working conditions, the impeller blade 111 can adjust its angle by rotating. The adjusting mechanism 21 first drives the fixed disk 2 to move along the axial direction of the air inlet pipe 12, and the movement of the fixed disk 2 drives the worm 212 connected to it, and the rotation of the worm 212 drives the rotation of the worm wheel 211 engaged with it, and then the rotation of the worm wheel 211 drives the rotation of the driving disk 112, so that the driving disk 112 can rotate on the driving frame 11, and the rotational motion is transmitted to the rotating shaft 1111 of the impeller blade 111 through the connecting rod assembly 1121 on the driving disk 112, and then all the impeller blades 111 are synchronously adjusted to rotate, so that the angle of the impeller blade 111 changes.

[0037] Since the cooperation of the worm wheel 211 and the worm 212 has a self-locking function, after the fixed disk 2 stops driving, the self-locking of the worm wheel 211 and the worm 212 can maintain the adjustment of the angle of the impeller 111 by the drive frame 11 and the connecting rod assembly 1121, thereby preventing accidental deviation under wind flow or mechanical vibration, and at the same time enabling the drive frame 11 to adjust the impeller 111 during the rotation process. The synchronous adjustment of multiple impellers 111 is achieved through the connecting rod assembly 1121 and the drive disk 112, and the air volume output can be accurately controlled according to the working conditions, thereby improving the adaptability and energy-saving effect of the equipment. The adjustment mechanism 21 is based on the worm wheel 211 and the worm 212, with precise transmission and compact structural design, suitable for installation in a limited space, and convenient for industrial promotion and application. The design of the fixed disk 2 sliding along the axis of the air inlet pipe 12 is not only convenient for adjusting the angle of the impeller 111, but also adapts to the requirements of the installation position of the adjustment mechanism 21 for equipment of different sizes, thereby enhancing the versatility of the product.

[0038] like Figures 1 to 4 As shown: there is a gap between the side of the driving frame 11 close to the air inlet pipe 12 and the shell 1, and the air inlet pipe 12 passes through the gap to connect with the driving frame 11. The driving frame 11 and the air inlet pipe 12 divide the shell 1 into an installation cavity 13 and an air inlet cavity 14, and the adjustment mechanism 21 is arranged in the installation cavity 13.

[0039] By setting the drive frame 11 and the air inlet pipe 12, the shell 1 is divided into an installation chamber 13 and an air inlet chamber 14. The installation chamber 13 is used to accommodate the adjustment mechanism 21, while the air inlet chamber 14 ensures air circulation, thereby providing a stable air duct for the operation of the blower. The adjustment mechanism 21 is located in the installation chamber 13. The isolation design of the installation chamber 13 and the air inlet chamber 14 effectively avoids the adjustment mechanism 21 from being disturbed by airflow, dust or high temperature environment, ensures the stability of its adjustment performance and the reliability of long-term operation, prolongs the service life of the equipment, and reduces maintenance requirements. The air inlet pipe 12 passes through the gap between the drive frame 11 and the shell 1 and is connected to the drive frame 11 to provide an air source for the air inlet chamber 14; at the same time, the drive frame 11 can evenly distribute the air flow when rotating, thereby ensuring the air flow efficiency inside the blower. By dividing the shell 1 into the installation chamber 13 and the air inlet chamber 14, the adjustment mechanism 21 is cleverly isolated from the airflow, which not only simplifies the overall structure, but also improves the stability of the system operation, reduces airflow turbulence, and improves the working efficiency and energy-saving effect of the blower. The separated housing 1 provides independent space for the regulating mechanism 21 and the air inlet channel, and is suitable for operation in a variety of complex working conditions, especially showing good adaptability in high-dust and high-temperature environments such as roasting furnaces.

[0040] like Figures 2 to 10 As shown: a gear ring 1122 fixedly connected to the driving disc 112 is arranged on the side thereof, and the axis of the gear ring 1122 is coaxially arranged with the axis of the driving disc 112; a first gear 2111 fixedly connected to the worm wheel 211 is arranged on the side thereof, and the axis of the first gear 2111 is coaxially arranged with the axis of the worm wheel 211; the first gear 2111 is meshingly connected with the gear ring 1122.

[0041] After the rotation of the worm 212 drives the rotation of the worm wheel 211, the first gear 2111 can rotate synchronously with the worm wheel 211. Thus, the rotation of the first gear 2111 drives the rotation of the ring gear 1122 meshing therewith, and the rotation of the ring gear 1122 can directly drive the rotation of the drive disk 112, so that the synchronous adjustment of the angle of the impeller 111 is achieved through the connecting rod assembly 1121 on the drive disk 112. Due to the self-locking characteristics of the worm 212 and the worm wheel 211, the set angle of the drive disk 112 and the impeller 111 can be maintained after the adjustment is completed, avoiding the change of the angle due to external force or vibration.

[0042] The meshing connection between the ring gear 1122 and the first gear 2111 realizes efficient transmission of power from the worm wheel 211 to the drive disk 112. Compared with the transmission method of driving the drive disk 112 by the worm wheel 211, its structure is more compact and the transmission stability is stronger. The axis of the ring gear 1122 is coaxially arranged with the axis of the drive disk 112, and the axis of the first gear 2111 is coaxially arranged with the axis of the worm wheel 211, which ensures the coaxiality and motion accuracy of the rotating parts during the transmission process, and reduces the transmission error caused by eccentricity. The transmission of the ring gear 1122, the first gear 2111 and the worm wheel 211 is a modular design, each component has strong independence, is easy to maintain and has low cost. This design can operate stably in high temperature and high dust environments such as roasting furnaces, while providing precise impeller blade 111 adjustment function to meet the air volume requirements of various working conditions and further improve the energy saving effect.

[0043] like Figures 2 to 10 As shown: the end of the worm 212 is sleeved with a second gear 2121, and a rack 213 meshingly connected therewith is arranged beside the second gear 2121. The rack 213 can slide along the radial direction of the driving disk 112, and the rack 213 is drivingly connected to the fixed disk 2.

[0044] When the angle of the impeller blade 111 needs to be adjusted, the rack 213 slides radially along the driving disk 112 under the drive of the fixed disk 2. The sliding of the rack 213 drives the rotation of the second gear 2121, and the rotation of the worm 212 is driven by the rotation of the second gear 2121. The rotation of the worm 212 further drives the rotation of the worm wheel 211 meshed with it, and the worm wheel 211 drives the driving disk 112 to rotate. The rotation of the driving disk 112 synchronously adjusts the angle of the impeller blade 111 through the connecting rod assembly 1121, thereby achieving precise control of the airflow direction and air volume. Through the meshing of the rack 213 and the second gear 2121, linear motion can be converted into rotational motion, without the need for a complex transmission system, simplifying the overall design, and reducing manufacturing and maintenance costs. The rotation of the worm 212 is driven by the sliding of the rack 213, and redundant links are reduced in the transmission process. The rotation angle of the worm 212 can be more accurately controlled, so that the angle adjustment of the impeller blade 111 is more sensitive and accurate. The design of the rack 213 sliding in the radial direction fully utilizes the space around the driving disk 112, which is conducive to the miniaturization and compactness of the device.

[0045] like Figures 5 to 10As shown: a mounting plate 2131 fixedly connected to the second gear 2121 is provided on the end of the rack 213 away from the second gear 2121, an inclined slide rail 21311 is provided on the mounting plate 2131, a rotatable rotating disk 214 is sleeved on the fixed disk 2, a fixing plate 2141 extending along the axial direction of the driving frame 11 is provided on the rotating disk 2144, a sliding rod 21411 matching the slide rail 21311 is provided on the end of the fixing plate 2141 close to the mounting plate 2131, and the sliding rod 21411 is slidably arranged in the slide rail 21311.

[0046] When the fixed disk 2 moves, it will drive the rotating disk 214 to slide along the axial direction of the driving frame 11. Since the rotating disk 214 is rotatably arranged on the fixed disk 2, and the rotating disk 214 is provided with a fixed plate 2141 and a sliding rod 21411 that cooperates with the slide rail 21311, when the driving frame 11 drives the worm wheel 211, the worm 212, the rack 213 and other components, the rotating disk 214 will rotate synchronously with the driving frame 11, and will not affect the sliding cooperation between the sliding rod 21411 on the fixed plate 2141 and the slide rail 21311.

[0047] The movement of the rotating disk 214 along the axis of the driving frame 11 drives the movement of the fixed plate 2141, and the movement of the fixed plate 2141 drives the movement of the sliding rod 21411, so that the sliding rod 21411 slides along the direction of the sliding rail 21311 under the guidance of the inclined sliding rail 21311. This sliding movement drives the movement of the mounting plate 2131, thereby further driving the rack 213 fixedly connected to the mounting plate 2131 to slide radially along the driving disk 112. The sliding of the rack 213 drives the rotation of the second gear 2121 meshed with it, thereby driving the rotation of the worm 212, and then drives the worm wheel 211 meshed with the worm 212 and the driving disk 112 to rotate, and finally the angle of the impeller blade 111 is synchronously adjusted through the connecting rod assembly 1121, so as to realize the dynamic adjustment of the air volume and airflow direction.

[0048] By setting the inclined slide rail 21311 and the sliding rod 21411, the fixed disk 2 is moved along the axial direction of the driving frame 11, so that the rotation of the driving frame 11 can drive the rack 213 to slide radially along the driving disk 112, and the motion conversion is smooth and accurate, avoiding unnecessary power loss. The slide rail 21311 is set obliquely on the mounting plate 2131 to make the overall structure more compact. The inclination angle of the slide rail 21311 and the precise cooperation of the sliding rod 21411 ensure the controllability of the sliding of the rack 213, thereby improving the adjustment accuracy of the impeller blade 111, and can meet the needs of efficient airflow control. The cooperation between the slide rail 21311 and the sliding rod 21411 avoids the phenomenon of shaking or jamming during the sliding process, and ensures the stability of the operation of the entire adjustment mechanism 21.

[0049] like Figures 5 to 10As shown: the fixed disk 2 is provided with a plurality of guide rods 22 equidistantly surrounding its axis, the axes of the guide rods 22 are parallel to the axis of the fixed disk 2, the plurality of guide rods 22 all pass through the shell 1 and slide with it, a transmission disk 221 is fixedly connected to one end of the plurality of guide rods 22 away from the fixed disk 2, the axis of the transmission disk 221 is coaxially arranged with the axis of the fixed disk 2, and a linear drive component 23 is provided on the shell 1 for driving the transmission disk 221 to move along the axis direction of the drive frame 11.

[0050] When the linear drive assembly 23 is started, the transmission disk 221 moves along the axial direction of the drive frame 11, driving the multiple guide rods 22 to slide synchronously. The movement of the guide rod 22 directly acts on the fixed disk 2, so that the fixed disk 2 can achieve smooth movement along the axial direction. Through the cooperation of the guide rod 22 and the linear drive assembly 23, the power of the linear drive can be accurately transmitted to the fixed disk 2, ensuring that the movement of the fixed disk 2 along the axial direction is stable and accurate. The surrounding distribution of multiple guide rods 22 provides multi-point support for the fixed disk 2, avoiding the tilt or offset of the fixed disk 2 during movement, and improving the overall stability of the system. The sliding cooperation between the guide rod 22 and the shell 1 provides a good guiding function, while increasing the structural rigidity of the equipment, and can withstand large loads and vibration environments. The guide rod 22 and the linear drive assembly 23 are designed as independent detachable modules, which are convenient for daily maintenance and replacement of parts, and reduce the maintenance cost of the equipment.

[0051] like Figure 1 , Figure 3 and Figure 6 As shown: the linear drive assembly 23 includes a screw rod 231, a first rotary drive motor 232 and a support plate 233. The support plate 233 is fixedly connected to one end of the air inlet pipe 12 away from the shell 1. The screw rod 231 is rotatably arranged between the support plate 233 and the shell 1. The screw rod 231 passes through the transmission disk 221 and cooperates with its thread. The first rotary drive motor 232 is fixedly connected to the support plate 233, and the screw rod 231 is transmission-connected to the output shaft of the first rotary drive motor 232.

[0052] When the first rotary drive motor 232 is started, its output shaft drives the rotation of the screw rod 231. Since there is a threaded fit between the screw rod 231 and the transmission disc 221, the rotation of the screw rod 231 will push the transmission disc 221 to move linearly along the axial direction. By adjusting the rotation direction and speed of the first rotary drive motor 232, the moving direction and position of the transmission disc 221 can be flexibly controlled, and the synchronous axial movement of the fixed disc 2 and the guide rod 22 can be further realized, so that the angle of the plurality of impeller blades 111 can be adjusted by driving the adjustment mechanism 21 through the fixed disc 2. The threaded fit between the screw rod 231 and the transmission disc 221 accurately converts the rotational motion into linear motion, and can realize high-precision control of the displacement of the transmission disc 221, meeting the precise positioning requirements during the adjustment process of the impeller blades 111. The mechanical transmission efficiency between the screw rod 231 and the transmission disc 221 is high and the movement is stable, and it is not easy to get stuck or shake, which ensures the stability and reliability of the operation of the entire adjustment mechanism 21. The screw rod 231 transmission can withstand a large axial load, meet the requirements of industrial equipment for high strength and high reliability, and ensure that the equipment can maintain stable operation under high load conditions. The transmission direction of the screw rod 231 can be switched by the forward and reverse rotation of the first rotary drive motor 232. At the same time, the speed of the first rotary drive motor 232 is controllable, thereby realizing the flexible movement of the transmission disk 221 and meeting the requirements for air volume adjustment under various working conditions. The screw rod 231 and the first rotary drive motor 232 are simple in design and easy to replace, and are convenient for daily maintenance, which reduces the operation and maintenance costs of the equipment.

[0053] like Figures 1 to 3 , Fig. 9 and Fig.11 As shown: the portion of the air inlet pipe 12 located in the installation cavity 13 is provided with a plurality of slide grooves 121 equidistantly surrounding its axis, the slide grooves 121 extend along the axial direction of the air inlet pipe 12, and the inner edge of the fixed plate 2 is provided with slide bars 24 having the same number and one-to-one corresponding to the slide grooves 121, and the slide bars 24 are slidably matched with the slide grooves 121.

[0054] When the fixed disk 2 moves, the slide bar 24 on the fixed disk 2 slides in the slide groove 121, and the slide groove 121 guides and supports the movement of the slide bar 24. The cooperation between the slide bar 24 and the slide groove 121 not only limits the radial deviation of the fixed disk 2, but also ensures the smooth movement of its axis direction, thereby realizing the precise positioning of the fixed disk 2 on the air inlet pipe 12. The distribution and extension direction of the slide groove 121 clearly define the moving trajectory of the fixed disk 2, avoid the interference of the degrees of freedom in other directions, and help to achieve high-precision axial movement of the fixed disk 2. The design structure of the slide groove 121 and the slide bar 24 is simple, easy to process and assemble, does not require complex mechanical structures or precision parts, and reduces production costs. The slide groove 121 is arranged around the axis of the air inlet pipe 12, and forms a multi-point support structure with the slide bar 24, which provides higher rigidity and stability for the movement of the fixed disk 2, and can withstand certain loads and vibrations. The slide groove 121 is designed on the air inlet pipe 12, making full use of the structural space of the existing equipment, without increasing the occupation of additional components, making the equipment more compact and integrated.

[0055] like Figures 2 to 4 , Figure 6 , Figure 7 , Fig. 9 and Fig.10 As shown: the connecting rod assembly 1121 includes a first connecting rod 11211 and a second connecting rod 11212 which are the same in number and correspond one to one to the impeller blades 111; the first connecting rod 11211 and the second connecting rod 11212 are hinged at one end close to each other; the end of the first connecting rod 11211 away from the second connecting rod 11212 is hinged to the rotating shaft 1111 of the impeller blade 111; and the end of the second connecting rod 11212 away from the first connecting rod 11211 is hinged to the driving disk 112.

[0056] When the driving disk 112 rotates, since the second connecting rod 11212 is hinged to the driving disk 112, the rotational motion of the driving disk 112 is transmitted to the first connecting rod 11211 through the second connecting rod 11212. The first connecting rod 11211 then transmits the motion to the rotating shaft 1111 of the impeller blade 111, thereby changing the rotation angle of the impeller blade 111. The hinged design of the connecting rod assembly 1121 enables each impeller blade 111 to adjust the angle synchronously, ensuring the coordination and consistency of the air volume adjustment. Through the design of the connecting rod assembly 1121, each impeller blade 111 can achieve synchronous movement, ensure the uniformity of the air volume adjustment, and avoid air flow turbulence or reduced efficiency caused by inconsistent angle adjustment. The connecting rod assembly 1121 has a simple design and a tight connection, which can achieve efficient force transmission, reduce the space occupied by the complex transmission mechanism, and improve the reliability of the transmission. The rotation of the driving disk 112 is quickly transmitted to the impeller blade 111 through the connecting rod assembly 1121, achieving a quick response of angle adjustment and being able to meet the instant adjustment requirements of air volume under different working conditions. The connecting rod assembly 1121 is composed of a first connecting rod 11211 and a second connecting rod 11212, and has a simple structure, is easy to disassemble and maintain, and helps to extend the service life of the equipment and reduce maintenance costs.

[0057] like Figures 2 to 8 As shown, there are multiple worm wheels 211 and worm shafts 212 , and the multiple worm wheels 211 and worm shafts 212 are arranged around the axis of the driving frame 11 at equal intervals.

[0058] When the fixed disk 2 drives the worm 212 to rotate, the multiple worms 212 transmit their respective rotational motions to the corresponding worm wheels 211. The worm wheel 211 is meshed and connected with the ring gear 1122 on the driving disk 112, thereby realizing the rotation of the driving disk 112. Since the multiple worm wheels 211 and worms 212 are evenly distributed around the driving frame 11, each worm 212 shares a certain load. This multi-point drive design ensures the smooth and uniform rotation of the driving disk 112. The equidistant distribution of the multiple worm wheels 211 and worms 212 effectively disperses the driving load, avoids the torque concentration problem caused by single-point drive, and improves the stability and uniformity of the rotation of the driving disk 112. Multi-point drive reduces the dependence on a single worm 212 or worm wheel 211. Even if an individual worm wheel 211 or worm 212 fails, other drive components can still maintain the normal operation of the equipment, thereby improving the reliability of the equipment. Since each worm 212 only needs to bear part of the load, the wear rate of the single-point drive is reduced, and the overall energy loss of the drive system is reduced. Multiple worm wheels 211 and worms 212 are evenly arranged around the axis, with a compact structure, making full use of the space around the drive frame 11, while ensuring efficient operation of the drive system. The multi-point drive design effectively reduces the vibration and imbalance problems that may occur in single-point drive, making the equipment run more smoothly and reducing component loss caused by vibration.

[0059] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the protection scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An energy-saving blower for a roasting furnace, comprising a housing (1) and a driving frame (11) rotatably arranged in the housing (1), wherein the driving frame (11) is provided with a plurality of impeller blades (111) arranged around an axis of the driving frame (11), characterized in that: The impeller blade (111) is provided with a rotating shaft (1111), and the impeller blade (111) is rotatable around the axis of the rotating shaft (1111) and is arranged on the driving frame (11); A rotatable driving disk (112) is disposed on the driving frame (11), and a connecting rod assembly (1121) is disposed on the driving disk (112) for synchronously driving the rotating shafts (1111) of all the impeller blades (111) to rotate; The housing (1) is provided with an air inlet pipe (12) which can extend along the axial direction of the driving frame (11); The air inlet pipe (12) is provided with a fixed disk (2) that can move along its axial direction, and the fixed disk (2) is provided with an adjustment mechanism (21) that can rotate with the driving frame (11), and the adjustment mechanism (21) includes a worm wheel (211) for driving the driving disk (112) to rotate, and a worm (212) meshingly connected to the worm wheel (211) is provided on the side of the worm wheel (211), and the worm (212) is drivingly connected to the fixed disk (2).

2. The energy-saving blower for a roasting furnace according to claim 1, characterized in that: A gap is provided between a side of the driving frame (11) close to the air inlet pipe (12) and the housing (1); the air inlet pipe (12) passes through the gap and is connected to the driving frame (11); the driving frame (11) and the air inlet pipe (12) divide the housing (1) into an installation cavity (13) and an air inlet cavity (14); and the adjustment mechanism (21) is arranged in the installation cavity (13).

3. The energy-saving blower for a roasting furnace according to claim 1, characterized in that: A gear ring (1122) fixedly connected to the driving disc (112) is arranged beside the driving disc (112), and the axis of the gear ring (1122) is coaxially arranged with the axis of the driving disc (112); a first gear (2111) fixedly connected to the worm wheel (211) is arranged beside the worm wheel (211), and the axis of the first gear (2111) is coaxially arranged with the axis of the worm wheel (211); the first gear (2111) is meshingly connected with the gear ring (1122).

4. The energy-saving blower for a roasting furnace according to claim 1, characterized in that: The end of the worm (212) is sleeved with a second gear (2121), and a rack (213) meshingly connected therewith is arranged beside the second gear (2121). The rack (213) can slide along the radial direction of the driving disk (112), and the rack (213) is drivingly connected to the fixed disk (2).

5. The energy-saving blower for a roasting furnace according to claim 4, characterized in that: An end of the rack (213) away from the second gear (2121) is provided with a mounting plate (2131) fixedly connected thereto, and an inclined slide rail (21311) is provided on the mounting plate (2131); a rotatable rotating disk (214) is sleeved on the fixed disk (2); a fixing plate (2141) extending along the axial direction of the driving frame (11) is provided on the rotating disk (214); an end of the fixing plate (2141) close to the mounting plate (2131) is provided with a sliding rod (21411) matching the slide rail (21311), and the sliding rod (21411) is slidably arranged in the slide rail (21311).

6. The energy-saving blower for a roasting furnace according to claim 1, characterized in that: The fixed disk (2) is provided with a plurality of guide rods (22) equidistantly surrounding the axis thereof, the axes of the guide rods (22) and the axis of the fixed disk (2) being parallel to each other, the plurality of guide rods (22) all pass through the housing (1) and are slidably engaged therewith, a transmission disk (221) is fixedly connected to one end of the plurality of guide rods (22) away from the fixed disk (2), the axis of the transmission disk (221) being coaxially arranged with the axis of the fixed disk (2), and a linear drive assembly for driving the transmission disk (221) to move along the axis direction of the drive frame (11) is provided on the housing (1).

7. The energy-saving blower for a roasting furnace according to claim 6, characterized in that: The linear drive assembly (23) comprises a screw rod (231), a first rotary drive motor (232) and a support plate (233); the support plate (233) is fixedly connected to an end of the air inlet pipe (12) away from the housing (1); the screw rod (231) is rotatably arranged between the support plate (233) and the housing (1); the screw rod (231) passes through the transmission disc (221) and is threadably engaged with the transmission disc (221); the first rotary drive motor (232) is fixedly connected to the support plate (233), and the screw rod (231) is transmission-connected to an output shaft of the first rotary drive motor (232).

8. The energy-saving blower for a roasting furnace according to claim 2, characterized in that: The portion of the air inlet pipe (12) located in the installation cavity (13) is provided with a plurality of slide grooves (121) equidistantly surrounding the axis thereof, the slide grooves (121) extending along the axis direction of the air inlet pipe (12), and the inner edge of the fixed plate (2) is provided with slide bars (24) the same in number as the slide grooves (121) and corresponding to each other, the slide bars (24) being slidably matched with the slide grooves (121).

9. An energy-saving blower for a roasting furnace according to any one of claims 1 to 7, characterized in that: The connecting rod assembly (1121) comprises a first connecting rod (11211) and a second connecting rod (11212) which are the same in number and correspond to the impeller blades (111); the first connecting rod (11211) and the second connecting rod (11212) are hinged at one end close to each other; the end of the first connecting rod (11211) away from the second connecting rod (11212) is hinged to the rotating shaft (1111) of the impeller blade (111); and the end of the second connecting rod (11212) away from the first connecting rod (11211) is hinged to the driving disk (112).

10. An energy-saving blower for a roasting furnace according to any one of claims 1 to 7, characterized in that: There are multiple worm wheels (211) and worm screws (212), and the multiple worm wheels (211) and worm screws (212) are arranged around the axis of the driving frame (11) at equal distances.

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