Power transmission structure of vertical spiral stirring tower mill

Abstract

The utility model discloses a power transmission structure of a vertical spiral stirring tower mill, which relates to the technical field of tower mills, and comprises a barrel, the top of the barrel is connected with a support frame, the top of the support frame is provided with a motor and a speed reducer arranged at the output end of the motor, the output end of the speed reducer is connected with a transmission shaft, and the transmission shaft is connected with a transmission shaft. The bottom of the transmission shaft is connected with a stirring rod, the stirring rod is hollow, the top of the inner wall of the stirring rod is provided with a lower flange, and an adjusting cavity is formed in the transmission shaft. The power transmission structure of the vertical spiral stirring tower mill has the effect of quickly mounting the stirring rod on the transmission shaft and is also convenient for quickly dismounting the stirring blade from the transmission shaft when the stirring blade is abraded, and meanwhile, the driving device at the top has self-locking capability, so that the stirring rod can be quickly mounted on the transmission shaft. The connection part of the transmission shaft and the stirring rod can be prevented from loosening, so that the stability of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tower mills, and more specifically to a power transmission structure of a vertical spiral stirring tower mill. Background Art

[0002] The tower mill is a highly efficient vertical agitator grinding equipment, specially designed for mineral crushing, fine grinding and mixing materials. It combines a variety of crushing mechanisms such as stirring, extrusion, and grinding, and can achieve efficient fine processing of minerals and other materials under relatively low energy consumption conditions. The main structure is composed of a transmission component, a tower body, a spiral agitator, a lining and a grinding medium. The spiral stirring device is the core component of the tower mill. Since the spiral stirring device is in direct contact with the grinding medium (such as steel balls, gravel, etc.) and the material being ground during operation, long-term friction and impact will cause wear of the stirring spiral blades, shafts and connecting parts, and fatigue cracks are prone to occur. Initially, it may appear as tiny cracks, which may gradually expand over time, resulting in a decrease in structural strength, or even sudden fracture, which requires it to be disassembled for maintenance or replacement.

[0003] The Chinese patent application number is 202220028376.3, which discloses a shaft connection structure that is easy to disassemble. The structure includes a central shaft, a first connecting sleeve and a second connecting sleeve, the first connecting sleeve and the second connecting sleeve are respectively sleeved on the two ends of the outer side of the central shaft, the first connecting sleeve is used to be fixedly connected to the first shaft, and the second connecting sleeve is used to be fixedly connected to the second shaft, and the first shaft and the second shaft can be connected through a connecting piece; a driving assembly is connected to the first connecting sleeve, and the first connecting sleeve is movably arranged outside the central shaft. When the first shaft and the first connecting sleeve are released from the fixed connection, the driving assembly can drive the first connecting sleeve to slide along the axial direction of the central shaft, and slide in a direction away from the first shaft, so that the first shaft is separated from the connecting piece, and the connection between the first shaft and the second shaft is disconnected. This shaft connection structure that is easy to disassemble, after the two shaft bodies are connected by the connecting device, due to the lack of a self-locking structure, it is easy to loosen during long-term use. When loose, it will affect the normal transmission of power, and when fixing, a power device is required, which increases the cumbersomeness of the connection. At the same time, when the agitator shaft is worn and needs to be replaced, it is not convenient to disassemble.

[0004] Nowadays, when connecting the power transmission component and the stirring component of a tower mill, a coupling is usually used for connection. When the two shafts are on the same axis, they need to be fixed with bolts and other connecting parts. This makes the installation and disassembly process very cumbersome, which affects the time for maintenance and replacement of the stirring shaft after wear. Although some tower mills use connecting devices for connection, they lack the self-locking ability after connection, and the fixing device is prone to loosening, which affects the normal use of the tower mill.

[0005] Therefore, it is necessary to propose a power transmission structure of a vertical spiral stirring tower mill to solve the above problems. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] The purpose of the utility model is to solve the problems raised in the above background technology and provide a power transmission structure of a vertical spiral stirring tower mill.

[0008] (II) Technical solution

[0009] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0010] A power transmission structure of a vertical spiral stirring tower mill comprises a cylinder, a support frame is connected to the top of the cylinder, a motor and a reducer installed at the output end of the motor are installed on the top of the support frame, a transmission shaft is connected to the output end of the reducer, a stirring rod is connected to the bottom of the transmission shaft, the stirring rod is hollow, and a lower rib is arranged on the top of the inner wall, an adjustment cavity is arranged inside the transmission shaft, and an upper rib is arranged at the bottom of the adjustment cavity, and a moving plate is connected to the adjustment cavity for sliding up and down;

[0011] The bottom of the movable plate is fixedly connected with a chuck, a bevel plate is provided inside the chuck, a sliding groove is provided inside the chuck, a guide rod is fixedly connected inside the sliding groove, a movable clamping block is slidably connected to the guide rod, inclined surfaces and claws are provided on both sides of the movable clamping block, a spring is installed on the side of the movable clamping block close to the claw, the other end of the spring is connected to the inner wall of the chuck, and a strip groove for the claw to pass through is provided on the side wall of the chuck;

[0012] A spring is connected between the bevel disk and the chuck at the bottom, the top of the bevel disk is rotatably connected to a threaded rod, the top of the adjustment cavity is fixedly connected to a support platform, the top of the support platform is installed with a driving device, and the driving device is transmission-connected to the threaded rod.

[0013] Preferably, the driving device includes a meshingly connected turbine and worm, the bottom of the turbine is rotatably connected to the support platform, the interior of the turbine is transmission-connected to a threaded rod, and one end of the worm is connected to a rotating rod extending from a transmission shaft.

[0014] Preferably, the lower rib and the upper rib have mutually matching spline parts on opposite sides, a positioning ring is provided on the inner ring surface of the lower rib, and an annular groove for accommodating the positioning ring is provided at the bottom of the inner ring surface of the upper rib.

[0015] Preferably, a spline sleeve is provided on the top of the bevel disk, the spline sleeve is sleeved on the outer wall of the threaded rod, and the spline sleeve is spline-connected to the moving plate.

[0016] Preferably, a guide rail is connected between the support platform and the upper rib, and the movable plate moves up and down along the guide rail.

[0017] Preferably, a boss for supporting the transmission shaft is installed inside the support frame, a stirring blade is installed at the bottom of the stirring rod, and a lining is connected to the inner wall of the cylinder.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The device is provided with a chuck inside the transmission shaft which can be inserted into the stirring rod. After the chuck enters the stirring rod, the claw can automatically extend to connect with the lower rib, which has the effect of quickly installing the stirring rod on the transmission shaft, and is also convenient for quickly removing the stirring blade from the transmission shaft when it is worn. At the same time, the top drive device has a self-locking ability, which can prevent the connection between the transmission shaft and the stirring rod from loosening, thereby increasing the stability of the equipment.

[0020] 2. This device adds a spline part and a positioning ring that can cooperate with each other between the transmission shaft and the stirring rod. When the transmission shaft and the stirring rod are aligned, the positioning ring plays an auxiliary positioning role. The spline part can increase the connection capacity of the connection to avoid slipping when the transmission shaft drives the stirring rod to stir. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a three-dimensional cross-sectional schematic diagram of the structure of the utility model;

[0023] Figure 3 It is a partial three-dimensional schematic diagram of the connection structure between the transmission shaft and the stirring rod in the utility model;

[0024] Figure 4 It is a cross-sectional schematic diagram of the connection structure between the transmission shaft and the stirring rod in the utility model;

[0025] Figure 5 It is a three-dimensional schematic diagram of the connection structure between the support platform and the driving device in the utility model;

[0026] Figure 6 It is a three-dimensional cross-sectional schematic diagram of the connection structure between the chuck and the guide rod in the utility model;

[0027] Figure 7It is a three-dimensional schematic diagram of the connection structure between the stirring rod and the positioning ring in the utility model;

[0028] Figure 8 It is a three-dimensional schematic diagram of the connection structure between the movable clamp block and the spring in the utility model.

[0029] Reference numerals:

[0030] 101. Cylinder; 102. Support frame; 103. Motor; 104. Reducer; 105. Transmission shaft; 106. Agitator rod; 107. Lower rib; 108. Adjustment chamber; 109. Upper rib; 110. Moving plate; 111. Chuck; 112. Inclined disk; 113. Sliding groove; 114. Guide rod; 115. Moving block; 116. Clamping claw; 117. Spring; 118. Strip groove; 119. Threaded rod; 120. Support platform; 121. Driving device; 122. Turbine; 123. Worm; 124. Rotating rod; 125. Spline part; 126. Positioning ring; 127. Spline sleeve; 128. Guide rail; 129. Boss. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] See also Figure 1-8A power transmission structure of a vertical spiral stirring tower mill includes a cylinder 101. An inner lining is installed on the inner wall of the cylinder 101. The inner lining is made of wear-resistant material. At the same time, the cylinder 101 is filled with grinding media, such as alumina balls or balls made of other high-strength wear-resistant materials, which are used to increase the grinding capacity of the equipment. The material is ground by the cooperation of the inner lining and the grinding media. A support frame 102 is connected to the top of the cylinder 101. A motor 103 and a reducer 104 installed on the output end of the motor 103 are installed on the top of the support frame 102. The motor 103 drives a transmission shaft 105 to rotate through the reducer 104. The transmission shaft 105 is installed on the support frame 102 through a boss 129. The output end of the reducer 104 is connected to A transmission shaft 105, a stirring rod 106 is connected to the bottom of the transmission shaft 105, a stirring blade is installed at the bottom of the stirring rod 106, and the material is stirred and lifted by the spiral stirring blade. The stirring rod 106 is hollow, and the stirring rod 106 is hollow to reduce the overall weight, and a lower rib 107 is provided at the top of the inner wall, and a lower rib 107 is provided at the top of the stirring rod 106. An upper rib 109 is provided at the bottom of the transmission shaft 105, and the lower rib 107 and the upper rib 109 are arranged in cooperation with each other, and a spline portion 125 is provided on the opposite side, and an adjustment chamber 108 is provided inside the transmission shaft 105, and an upper rib 109 is provided at the bottom of the adjustment chamber 108, and a movable plate 110 is connected to the adjustment chamber 108 for sliding up and down;

[0033] refer to Figures 3 to 6The bottom of the moving plate 110 is fixedly connected with a chuck 111, and the chuck 111 is located at the bottom of the moving plate 110. The inclined disk 112 can move up and down in the chuck 111. When the moving plate 110 is blocked at the top of the upper retaining edge 109 and the threaded rod 119 continues to descend, the threaded rod 119 will push the inclined disk 112 to move downward. The interior of the chuck 111 is provided with an inclined disk 112, and the interior of the chuck 111 is provided with a sliding groove 113. When the moving block 115 moves around, it will slide along the guide rod 114. The sliding groove 113 is fixedly connected with the guide rod 114, and the guide rod 114 is slidably connected with the moving block 115. The two sides of the moving block 115 are provided with inclined surfaces and claws 116. The inclined surface on 115 cooperates with the inclined surface at the bottom of the inclined disk 112. When the inclined disk 112 moves downward, the moving block 115 will be squeezed around, so that the moving block 115 is stuck at the bottom of the lower rib 107. A spring 117 is installed on the side of the moving block 115 close to the claw 116. When the stirring rod 106 is removed from the transmission shaft 105, the spring 117 will push the moving block 115 to reset to the middle. The other end of the spring 117 is connected to the inner wall of the chuck 111. The side wall of the chuck 111 is provided with a strip groove 118 through which the claw 116 passes. The strip groove 118 is slightly larger than the size of the claw 116, so that the claw 116 can extend out of the chuck 111 and be stuck at the bottom of the lower rib 107.

[0034] refer to Figures 3 to 6 A spring 117 is connected between the bevel disk 112 and the chuck 111 at the bottom. When the moving plate 110 is not blocked by the upper retaining edge 109, the spring 117 will push the bevel disk 112 to fit together with the moving plate 110. When the moving plate 110 is blocked, the spring 117 is compressed, and the bevel disk 112 moves downward. The top of the bevel disk 112 is rotatably connected to a threaded rod 119, and the top of the adjustment chamber 108 is fixedly connected to a support platform 120, which is used to support a driving device 121. The turbine 122 rotates at the top of the driving device 121, and the driving device 121 is installed on the top of the support platform 120. The driving device 121 and the threaded rod 119 are transmission connected.

[0035] Specifically, refer to Figures 3 to 5 The driving device 121 includes a meshing turbine 122 and a worm 123. The cooperation between the turbine 122 and the worm 123 can increase the self-locking ability of the driving device 121. The bottom of the turbine 122 is rotatably connected to the support platform 120. The interior of the turbine 122 is transmission-connected to the threaded rod 119. One end of the worm 123 is connected to a rotating rod 124 extending from the transmission shaft 105. By rotating the rotating rod 124, the driving device 121 can be rotated.

[0036] Specifically, refer to Figure 7The lower rib 107 and the upper rib 109 have corresponding spline portions 125 on their opposite sides. The stirring rod 106 and the transmission shaft 105 are connected through the spline portion 125, which can increase the stability of the connection. A positioning ring 126 is provided on the inner ring surface of the lower rib 107, and an annular groove for accommodating the positioning ring 126 is provided at the bottom of the inner ring surface of the upper rib 109. The upper rib 109 is inserted into the annular groove to assist in positioning the transmission shaft 105 and the stirring rod 106.

[0037] Specifically, refer to Figures 3 to 5 A spline sleeve 127 is provided on the top of the bevel disk 112. The spline sleeve 127 is installed on the top of the bevel disk 112 and is spline-connected to the movable plate 110 so that the bevel disk 112 can only move up and down. The spline sleeve 127 is sleeved on the outer wall of the threaded rod 119 and is spline-connected to the movable plate 110.

[0038] Specifically, refer to Figures 3 to 5 A guide rail 128 is connected between the support platform 120 and the upper retaining edge 109 . The guide rail 128 is used to stabilize the up and down movement of the movable plate 110 . The movable plate 110 moves up and down along the guide rail 128 .

[0039] Specifically, refer to Figure 1 and Figure 2 A boss 129 is installed inside the support frame 102 to support the transmission shaft 105. The boss 129 supports the transmission shaft 105 and is used to increase the stability of the transmission shaft 105 during rotation. A stirring blade is installed at the bottom of the stirring rod 106. An inner lining is connected to the inner wall of the cylinder 101. The inner lining is made of wear-resistant material and can cooperate with the grinding medium filled in the cylinder 101 to achieve a grinding effect.

[0040] In this embodiment, a lining made of wear-resistant material is installed on the inner wall of the cylinder 101, and the interior of the cylinder 101 is filled with grinding media for grinding, such as alumina balls or balls made of other high-strength wear-resistant materials, to increase the grinding capacity of the equipment. A support frame 102 is installed on the top of the cylinder 101, and a motor 103 and a reducer 104 are installed on the support frame 102. The output end of the motor 103 is connected to the reducer 104, and the output end of the reducer 104 is connected to a transmission shaft 105. A boss 129 capable of supporting the transmission shaft 105 is installed on the support frame 102, and a stirring rod 106 is connected to the bottom of the transmission shaft 105. A stirring blade is installed on the stirring rod 106, which has the function of stirring and lifting the raw materials in the cylinder 101, thereby achieving the grinding effect. A feed port, a discharge port and a ball discharge port are provided on the outer wall of the cylinder 101, which are convenient for adding, discharging and discharging.

[0041] When it is necessary to install a new stirring rod 106, the new stirring rod 106 is aligned with the transmission shaft 105 on the same axis, and the positioning ring 126 on the top of the stirring rod 106 will be inserted into the annular groove at the bottom of the transmission shaft 105. The positioning ring 126 plays an auxiliary alignment role. At the same time, the spline parts 125 on the stirring rod 106 and the transmission shaft 105 that mesh with each other can increase the connection capacity and prevent rotation during connection. When the stirring rod 106 and the transmission shaft 105 are connected together, the rotating rod 124 on the outer wall of the transmission shaft 105 is rotated. The rotating rod 124 drives the turbine 122 to rotate through the worm 123. The turbine 122 will generate axial rotation on the support platform 120 and drive the threaded rod 119 to move downward through the internal threaded connection with the threaded rod 119.

[0042] When the threaded rod 119 moves downward, the moving plate 110 and the chuck 111 are driven to move together. At this time, the chuck 111 will move from the adjustment chamber 108 to the stirring rod 106. When the moving plate 110 moves to the bottom of the adjustment chamber 108, it will be blocked by the upper retaining edge 109 and stay on the top of the upper retaining edge 109. At this time, the threaded rod 119 pushes the inclined plate 112 to continue to move downward, and the spring 117 at the bottom of the inclined plate 112 will be compressed. Then the inclined plate 112 will come into contact with the moving block 115 through the inclined surface. Through the contact between the inclined surfaces, the moving block 115 will move around, and the moving block 115 will move along the guide rod 114 in the sliding groove 113. The guide rod 114 has the function of guiding and stabilizing the movement.

[0043] When the movable block 115 moves to a certain extent, the claw 116 on one side will be pushed out from the strip groove 118, so that the claw 116 on the movable block 115 is stuck at the bottom of the lower rib 107, and the top movable plate 110 fixes the upper rib 109, and the bottom claw 116 fixes the lower rib 107, so as to fix the transmission shaft 105 and the stirring rod 106 together, thereby completing the connection between the stirring rod 106 and the transmission shaft 105. The bottom of the inner annular surface of the lower rib 107 is provided with an inclined surface. When the transmission shaft 105 and the stirring rod 106 are not completely fitted together, the claw 116 will move from the inclined surface to the bottom of the lower rib 107, so as to press the transmission shaft 105 and the stirring rod 106 together.

[0044] When the stirring rod 106 needs to be removed from the transmission shaft 105, the rotating rod 124 is rotated in the opposite direction to move the threaded rod 119 upward. The inclined disk 112 will be affected by the bottom spring 117 and will move upward first. Then the moving block 115 of the circular array will start to reset. When the inclined disk 112 moves to contact the moving plate 110, it will drive the moving plate 110 to move upward together. Then the chuck 111 will move into the adjustment cavity 108, so that the stirring rod 106 can be removed from the transmission shaft 105.

[0045] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A power transmission structure of a vertical spiral stirring tower mill, comprising a cylinder (101), the top of the cylinder (101) is connected to a support frame (102), the top of the support frame (102) is equipped with a motor (103) and a reducer (104) installed at the output end of the motor (103), the output end of the reducer (104) is connected to a transmission shaft (105), the bottom of the transmission shaft (105) is connected to a stirring rod (106), characterized in that: The stirring rod (106) is hollow, and a lower rib (107) is provided at the top of the inner wall; an adjustment cavity (108) is provided inside the transmission shaft (105), and an upper rib (109) is provided at the bottom of the adjustment cavity (108); a movable plate (110) is slidably connected to the inside of the adjustment cavity (108); The bottom of the movable plate (110) is fixedly connected with a chuck (111), a bevel plate (112) is provided inside the chuck (111), a sliding groove (113) is provided inside the chuck (111), a guide rod (114) is fixedly connected inside the sliding groove (113), a movable block (115) is slidably connected to the guide rod (114), bevels and claws (116) are provided on both sides of the movable block (115), a spring (117) is installed on one side of the movable block (115) close to the claw (116), the other end of the spring (117) is connected to the inner wall of the chuck (111), and a strip groove (118) is provided on the side wall of the chuck (111) for the claw (116) to pass through. A spring (117) is connected between the inclined disk (112) and the chuck (111) at the bottom; the top of the inclined disk (112) is rotatably connected to a threaded rod (119); the top of the adjustment chamber (108) is fixedly connected to a support platform (120); a driving device (121) is installed on the top of the support platform (120); and the driving device (121) and the threaded rod (119) are transmission-connected.

2. The power transmission structure of a vertical spiral stirring tower mill according to claim 1 is characterized in that: The driving device (121) comprises a meshingly connected turbine (122) and a worm (123); the bottom of the turbine (122) is rotationally connected to the support platform (120); the interior of the turbine (122) is transmission-connected to the threaded rod (119); and one end of the worm (123) is connected to a rotating rod (124) extending from the transmission shaft (105).

3. The power transmission structure of a vertical spiral stirring tower mill according to claim 2 is characterized in that: The lower rib (107) and the upper rib (109) are provided with mutually matching spline parts (125) on the opposite sides thereof, a positioning ring (126) is provided on the inner ring surface of the lower rib (107), and an annular groove for accommodating the positioning ring (126) is provided at the bottom of the inner ring surface of the upper rib (109).

4. The power transmission structure of a vertical spiral stirring tower mill according to claim 1 is characterized in that: A spline sleeve (127) is provided on the top of the bevel plate (112), the spline sleeve (127) is sleeved on the outer wall of the threaded rod (119), and the spline sleeve (127) is spline-connected to the moving plate (110).

5. The power transmission structure of a vertical spiral stirring tower mill according to claim 1, characterized in that: A guide rail (128) is connected between the support platform (120) and the upper retaining edge (109), and the movable plate (110) moves up and down along the guide rail (128).

6. The power transmission structure of a vertical spiral stirring tower mill according to claim 1, characterized in that: A boss (129) for supporting the transmission shaft (105) is installed inside the support frame (102), a stirring blade is installed at the bottom of the stirring rod (106), and a lining is connected to the inner wall of the cylinder (101).

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