Grading device of ultrafine grinder

Abstract

The utility model relates to the technical field of ultrafine grinders, in particular to a grading device of an ultrafine grinder. Comprising a grading shaft, a grading shaft seat, a convex cover, a crushing chamber, a reinforcing ring, blades, a radial plate, a connecting shaft seat and a connecting assembly, the connecting assembly comprises an inserting disc, a limiting disc, two inserting blocks, two abutting springs, two movable rods and a plurality of limiting columns, the inserting disc and the limiting disc are both fixedly connected with the connecting shaft seat, and the inserting disc is provided with two cavities; an inserting block is movably arranged in each cavity, each inserting block is matched with the corresponding inserting groove, the two ends of each abutting spring are fixedly connected with the inserting disc and the corresponding inserting block respectively, the two movable rods are fixedly connected with the corresponding inserting blocks respectively, and the multiple limiting columns are fixedly connected with the limiting disc. The connecting shaft seat can be conveniently disassembled and assembled on the radial plate, time and labor are saved, and operation is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrafine pulverizers, in particular to a grading device of an ultrafine pulverizer. Background Art

[0002] Ultrafine pulverizer is used to crush various coarse materials such as corn, sorghum, rice and wheat, soybean meal, fish and shrimp in the process of feed processing. By adjusting the speed of the grading impeller, the required ultrafine particle size can be achieved, which is more suitable for the production of high-grade feed that needs to be expanded. The materials crushed in the ultrafine pulverizer need to be graded by a rotating grading device to become finished products. The grading device is connected to the motor drive, and the motor speed is adjusted by the frequency converter to control the fineness of the pulverization. The higher the speed of the grading device, the finer the grading particle size (i.e. the finished product particle size), and vice versa. Generally, there are many blades in the grading device. The upper reinforcement ring is set in the inner ring of the blade composition and welded with the blade. After each blade is welded with the upper reinforcement ring and the lower positioning plate, the upper end stop structure of the blade needs to be processed to match the gap of the convex cover. However, the blade gap and blade roundness are difficult to guarantee. It is easy to damage the tool when turning the outer circle. The processing is difficult and the cost is high, which affects the grading effect.

[0003] In the prior art patent CN203899724U discloses a grading device of an ultrafine pulverizer, which adopts a stopper structure at the upper end of the reinforcing ring and a slotted structure at the lower end surface, is simple to manufacture, has accurate blade assembly and positioning, and has good processability. The shaft seat and the spoke plate are connected by bolts to avoid the phenomenon of the grading wheel support being unwelded during high-load operation, making the installation and maintenance of the grading device more convenient. The gap between the reinforcing ring and the convex cover is well controlled during operation, and the variable frequency motor has a large adjustable range, making the material grading more accurate and improving the quality of the puffed feed.

[0004] However, in the above-mentioned prior art patent, a large number of bolts are required to fix the connecting shaft seat and the spoke plate on the grading impeller, and it takes a lot of manpower and time to disassemble and assemble the connecting shaft seat on the spoke plate, which is inconvenient to operate. Utility Model Content

[0005] The utility model aims to provide a grading device for an ultrafine pulverizer, which solves the problem that a large number of bolts are needed to fix the connecting shaft seat and the spoke plate on the existing grading impeller, and a large amount of manpower and time are needed to disassemble and assemble the connecting shaft seat on the spoke plate, resulting in inconvenient operation.

[0006] To achieve the above-mentioned purpose, the utility model adopts a grading device of an ultrafine pulverizer, comprising a grading shaft, a grading shaft seat, a convex cover, a grinding chamber, a reinforcing ring, blades, a spoke plate, a connecting shaft seat and a connecting assembly, wherein the convex cover is connected to the grinding chamber and is located above the grinding chamber, the reinforcing ring is connected to the convex cover and is located in the grinding chamber, the upper end of the blade is connected to the reinforcing ring, the spoke plate is connected to the lower end of the blade, the connecting shaft seat is connected to the middle part of the spoke plate, the lower end of the grading shaft is connected to the connecting shaft seat, the grading shaft seat is connected to the grading shaft, and the connecting assembly comprises a plug-in plate, a limit plate, two plug-in blocks, two holding springs, two movable rods and A plurality of limit columns, the plug-in plate and the limit plate are fixedly connected to the connecting shaft seat and are sleeved on the outer wall of the connecting shaft seat, the spoke plate has a through hole and two plug-in slots, the plug-in plate has two cavities, each of the cavities is movably provided with the plug-in block, and each of the plug-in blocks is respectively adapted to the corresponding plug-in slots, the two ends of each of the retaining springs are respectively fixedly connected to the plug-in plate and the corresponding plug-in block, the two movable rods are respectively fixedly connected to the corresponding plug-in blocks, and are respectively located on the corresponding cavities, the spoke plate also has a plurality of limit holes, and the plurality of limit columns are fixedly connected to the limit plate, and are respectively adapted to the corresponding limit holes.

[0007] Wherein, the connecting assembly further comprises two rubber sleeves, the two rubber sleeves are respectively fixedly connected to the corresponding plug-in blocks and are respectively sleeved on the outer walls of the corresponding plug-in blocks.

[0008] Wherein, the connecting assembly further comprises two holding parts, and the two holding parts are respectively fixedly connected to the corresponding movable rods and are respectively sleeved on the outer walls of the movable rods.

[0009] Wherein, the grading device of the ultrafine pulverizer further comprises a plurality of sets of fixing components, the pulverizing chamber has mounting holes, and the plurality of sets of fixing components are all arranged on the convex cover and are respectively matched with the corresponding mounting holes.

[0010] Among them, the fixing assembly includes a fixing column, a limiting spring and an extrusion arc block, the fixing column is fixedly connected to the convex cover and is located below the convex cover, the fixing column has a groove, the extrusion arc block is movably connected to the fixing column and is respectively adapted to the groove and the mounting hole, and the two ends of the limiting spring are respectively fixedly connected to the extrusion arc block and the fixing column and are located in the groove.

[0011] Wherein, the fixing assembly further comprises a hemispherical block, which is fixedly connected to the fixing column and is located at an end of the fixing column away from the convex cover.

[0012] When the plurality of limit posts on the limit plate are inserted into the plurality of limit holes of the spoke plate, the movable rod is released. At this time, the two plug-in blocks are respectively entered into the plug-in grooves of the spoke plate by the rebound force of the resisting spring, so that the connecting shaft seat is installed on the spoke plate. When disassembling and assembling, the two plug-in blocks are separated from the plug-in grooves of the spoke plate by pressing the two movable rods, and the connecting shaft seat is separated from the spoke plate. Through the above method, it is possible to facilitate the disassembly and assembly of the connecting shaft seat on the spoke plate, which saves time and effort and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] 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 description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a cross-sectional view of the overall internal structure of the first embodiment of the utility model.

[0015] Figure 2 It is a structural schematic diagram of the connection between the connecting shaft seat and the spoke plate in the first embodiment of the utility model.

[0016] Figure 3 It is a schematic structural diagram of the split connection shaft seat and spoke plate of the first embodiment of the utility model.

[0017] Figure 4 It is a cross-sectional view of the overall internal structure of the second embodiment of the utility model.

[0018] Figure 5 The utility model Figure 4 A magnified view of the local structure at A.

[0019] 101-grading shaft, 102-grading shaft seat, 103-convex cover, 104-crushing chamber, 105-reinforcement ring, 106-blade, 107-spoke plate, 108-connecting shaft seat, 109-plug-in plate, 110-limiting plate, 111-plug-in block, 112-holding spring, 113-movable rod, 114-limiting column, 115-rubber sleeve, 116-gripping part, 117-through hole, 118-plug-in groove, 119-cavity, 120-limiting hole, 201-fixing column, 202-limiting spring, 203-extrusion arc block, 204-hemispherical block, 205-groove, 206-mounting hole. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0021] First embodiment

[0022] See also Figure 1 to Figure 3 ,in Figure 1 is a cross-sectional view of the overall internal structure of the first embodiment, Figure 2 is a schematic structural diagram of the connection between the connecting shaft seat 108 and the spoke plate 107 of the first embodiment, Figure 3 It is a schematic structural diagram of the first embodiment in which the connecting shaft seat 108 and the spoke plate 107 are separated.

[0023] The utility model provides a grading device of an ultrafine pulverizer: comprising a grading shaft 101, a grading shaft seat 102, a convex cover 103, a pulverizing chamber 104, a reinforcing ring 105, blades 106, a spoke plate 107, a connecting shaft seat 108 and a connecting assembly, wherein the connecting assembly comprises a plug-in plate 109, a limiting plate 110, two plug-in blocks 111, two resisting springs 112, two movable rods 113, a plurality of limiting columns 114, two rubber sleeves 115 and two gripping parts 116. The above-mentioned solution solves the problem that a large number of bolts are required to fix the connecting shaft seat 108 on the existing grading impeller with the spoke plate, and a large amount of manpower and time are required to disassemble and assemble the connecting shaft seat 108 on the spoke plate, which is inconvenient to operate.

[0024] According to this specific embodiment, the convex cover 103 is connected to the crushing chamber 104 and is located above the crushing chamber 104. The reinforcement ring 105 is connected to the convex cover 103 and is located in the crushing chamber 104. The upper end of the blade 106 is connected to the reinforcement ring 105, the spoke 107 is connected to the lower end of the blade 106, the connecting shaft seat 108 is connected to the middle part of the spoke 107, the lower end of the grading shaft 101 is connected to the connecting shaft seat 108, and the grading shaft seat 102 is connected to the grading shaft 101. By adopting the stop structure at the upper end of the reinforcement ring 105 and the grooved structure at the lower end surface, the manufacturing is simple, the blade 106 is accurately assembled and positioned, and the processability is good. The above structure is a prior art and will not be described in detail here.

[0025] The plug-in plate 109 and the limit plate 110 are both fixedly connected to the connecting shaft seat 108 and are sleeved on the outer wall of the connecting shaft seat 108. The spoke 107 has a through hole 117 and two plug-in slots 118. The plug-in plate 109 has two cavities 119, each of which is movably provided with a plug-in block 111, and each of the plug-in blocks 111 is respectively adapted to the corresponding plug-in slots 118, and the two ends of each of the resisting springs 112 are respectively connected to the plug-in slots 118. The disk 109 is fixedly connected to the corresponding plug-in block 111, the two movable rods 113 are respectively fixedly connected to the corresponding plug-in blocks 111 and are respectively located on the corresponding cavities 119, the spoke 107 also has a plurality of limiting holes 120, and the plurality of limiting columns 114 are fixedly connected to the limiting disk 110 and are respectively adapted to the corresponding limiting holes 120. When the connecting shaft seat 108 is fixed to the spoke 107, the plug-in blocks on the connecting shaft seat 108 are The plate 109 is inserted into the through hole 117 of the spoke 107, and at the same time, the two movable rods 113 are pressed under the plug-in plate 109, and the two movable rods 113 respectively drive the plug-in block 111 into the cavity 119 to squeeze the holding spring 112. When the plurality of limiting columns 114 on the limiting plate 110 are inserted into the plurality of limiting holes 120 of the spoke 107, by loosening the movable rod 113, the two blocks are pressed together by the rebound force of the holding spring 112. The plug-in blocks 111 are respectively inserted into the plug-in grooves 118 of the spoke plate 107, so that the connecting shaft seat 108 is installed on the spoke plate 107. When disassembling or assembling, the two plug-in blocks 111 are disengaged from the plug-in grooves 118 of the spoke plate 107 by pressing the two movable rods 113, and the connecting shaft seat 108 is separated from the spoke plate 107. Through the above method, it is possible to facilitate the disassembly or assembly of the connecting shaft seat 108 on the spoke plate 107, which saves time and effort and is easy to operate.

[0026] Secondly, the two rubber sleeves 115 are respectively fixedly connected to the corresponding plug-in blocks 111 and are respectively sleeved on the outer walls of the corresponding plug-in blocks 111. By arranging the rubber sleeves 115 on the plug-in blocks 111, the rubber sleeves 115 can increase the friction of the plug-in blocks 111 in the plug-in groove 118, so that the plug-in plate 109 is fixed more stably in the through hole 117 of the spoke 107.

[0027] At the same time, the two gripping portions 116 are respectively fixedly connected to the corresponding movable rods 113 and are respectively sleeved on the outer walls of the movable rods 113. By arranging the gripping portions 116 on the outer walls of the movable rods 113, it is convenient for people to squeeze the movable rods 113 through the gripping portions 116.

[0028] When the connecting shaft seat 108 is fixed to the spoke plate 107, the plug-in plate 109 on the connecting shaft seat 108 is pushed into the through hole 117 of the spoke plate 107, and the two movable rods 113 are pressed under the plug-in plate 109. The two movable rods 113 respectively drive the plug-in blocks 111 into the cavity 119 to squeeze the resisting springs 112. When the plurality of limiting columns 114 on the limiting plate 110 are inserted into the plurality of limiting holes 120 of the spoke plate 107, the movable rods 113 are released. At this time, the rebound force of the resisting springs 112 causes the two plug-in blocks 111 to respectively enter the plug-in slots 118 of the spoke plate 107, so that the connecting shaft seat 108 is fixed to the spoke plate 107. When installed on the spoke 107, the two plug-in blocks 111 are disengaged from the plug-in slots 118 of the spoke 107 by pressing the two movable rods 113, and the connecting shaft seat 108 is separated from the spoke 107; in addition, the gripping portion 116 is provided on the outer wall of the movable rod 113, and the personnel can squeeze the movable rod 113 conveniently through the gripping portion 116, and the rubber sleeve 115 is provided on the plug-in block 111, and the rubber sleeve 115 can increase the friction of the plug-in block 111 in the plug-in slot 118, so that the plug-in plate 109 is fixed more stably in the through hole 117 of the spoke 107. Through the above method, it is achieved that the connecting shaft seat 108 can be easily disassembled and assembled on the spoke 107, which saves time and effort and is easy to operate.

[0029] Second embodiment

[0030] See also Figure 4 and Figure 5 ,in Figure 4 is a cross-sectional view of the overall internal structure of the second embodiment, Figure 5 yes Figure 4 A magnified view of the local structure at A.

[0031] On the basis of the first embodiment, the grading device of the ultrafine pulverizer of the utility model further includes a plurality of sets of fixing components, wherein the fixing components include a fixing column 201 , a limit spring 202 , an extrusion arc block 203 and a hemispherical block 204 .

[0032] The crushing chamber 104 has a mounting hole, and a plurality of sets of fixing components are arranged on the convex cover 103 and are respectively matched with the corresponding mounting holes. The convex cover 103 can be easily fixed and disassembled on the crushing chamber 104 through the fixing components, which is easy to operate and facilitates subsequent maintenance of the equipment.

[0033] The fixing column 201 is fixedly connected to the convex cover 103 and is located below the convex cover 103. The fixing column 201 has a groove 205. The extrusion arc block 203 is movably connected to the fixing column 201 and is respectively adapted to the groove 205 and the mounting hole 206. The two ends of the limit spring 202 are respectively fixedly connected to the extrusion arc block 203 and the fixing column 201 and are located in the groove 205. When the convex cover 103 is fixedly installed above the crushing chamber 104, the plurality of limit columns 114 below the convex cover 103 are respectively pushed into the respective mounting holes 206 of the crushing chamber 104, and the extrusion arc block 203 on each limit column 114 is squeezed, and the extrusion arc block 203 enters the limit spring. In the groove 205 of the column 114, the limit spring 202 is squeezed and compressed in the groove 205. When the convex cover 103 is in close contact with the crushing chamber 104, the extrusion arc block 203 is pushed out of the groove 205 by the rebound force of the limit spring 202, and the convex cover 103 is fastened above the crushing chamber 104; when the convex cover 103 is removed above the crushing chamber 104, the multiple extrusion arc blocks 203 are pressed into the groove 205 respectively, and the multiple fixing columns 201 are separated from the mounting holes 206, and then the convex cover 103 is separated from the crushing chamber 104. In the above manner, it is easy to fix and disassemble on the crushing chamber 104, the operation is simple, and it is convenient for subsequent maintenance of the equipment.

[0034] The hemispherical block 204 is fixedly connected to the fixing column 201 and is located at an end of the fixing column 201 away from the convex cover 103. By arranging the hemispherical block 204 on the fixing column 201, the hemispherical block 204 has a spherical surface, which can facilitate the fixing column 201 to be inserted into the mounting hole 206.

[0035] When the convex cover 103 is fixedly installed above the crushing chamber 104, the plurality of limiting columns 114 below the convex cover 103 are respectively pushed into the respective mounting holes 206 of the crushing chamber 104, so that the extrusion arc block 203 on each limiting column 114 is squeezed, and the extrusion arc block 203 enters the groove 205 of the limiting column 114, and the limiting spring 202 is compressed after being squeezed in the groove 205. When the convex cover 103 is in close contact with the crushing chamber 104, the extrusion arc block 203 is pushed out of the groove 205 by the rebound force of the limiting spring 202, and the convex cover 103 is in close contact with the crushing chamber 104. 3 is fastened above the crushing chamber 104; when the convex cover 103 is removed above the crushing chamber 104, the convex cover 103 is separated from the crushing chamber 104 by pressing the plurality of extrusion arc blocks 203 into the grooves 205 respectively and separating the plurality of fixing columns 201 from the mounting holes 206; the hemispherical block 204 is provided on each of the fixing columns 201, and the hemispherical block 204 has a spherical surface, so that the fixing column 201 can be easily inserted into the mounting hole 206. In the above manner, it is possible to easily fix and remove the crushing chamber 104, and the operation is simple, which is conducive to the subsequent maintenance of the equipment.

[0036] The above disclosures are only two preferred embodiments of the present invention, which certainly cannot be used to limit the scope of the present invention. A person skilled in the art can understand that all or part of the processes of the above embodiments and equivalent changes made according to the claims of the present invention still fall within the scope of the present invention.

Claims

1. A grading device of an ultrafine pulverizer, comprising a grading shaft, a grading shaft seat, a convex cover, a grinding chamber, a reinforcing ring, blades, a radial plate and a connecting shaft seat, wherein the convex cover is connected to the grinding chamber and is located above the grinding chamber, the reinforcing ring is connected to the convex cover and is located in the grinding chamber, the upper end of the blade is connected to the reinforcing ring, the radial plate is connected to the lower end of the blade, the connecting shaft seat is connected to the middle part of the radial plate, the lower end of the grading shaft is connected to the connecting shaft seat, the grading shaft seat is connected to the grading shaft, and is characterized in that: The invention also includes a connecting component, which includes a plug-in plate, a limit plate, two plug-in blocks, two holding springs, two movable rods and a plurality of limit columns. The plug-in plate and the limit plate are fixedly connected to the connecting shaft seat and are sleeved on the outer wall of the connecting shaft seat. The spoke plate has a through hole and two plug-in slots. The plug-in plate has two cavities, each of which is movably provided with the plug-in block, and each of the plug-in blocks is respectively adapted to the corresponding plug-in slots. The two ends of each of the holding springs are respectively fixedly connected to the plug-in plate and the corresponding plug-in block. The two movable rods are respectively fixedly connected to the corresponding plug-in blocks and are respectively located on the corresponding cavities. The spoke plate also has a plurality of limit holes. The plurality of limit columns are fixedly connected to the limit plate and are respectively adapted to the corresponding limit holes.

2. The classifying device of the ultrafine pulverizer according to claim 1, characterized in that: The connecting assembly also includes two rubber sleeves, which are respectively fixedly connected to the corresponding plug-in blocks and are respectively sleeved on the outer walls of the corresponding plug-in blocks.

3. The classifying device of the ultrafine pulverizer according to claim 2, characterized in that: The connecting assembly also includes two holding parts, which are respectively fixedly connected to the corresponding movable rods and are respectively sleeved on the outer walls of the movable rods.

4. The classifying device of the ultrafine pulverizer according to claim 1, characterized in that: The grading device of the ultrafine pulverizer further comprises a plurality of sets of fixing components, the pulverizing chamber has mounting holes, and the plurality of sets of fixing components are all arranged on the convex cover and are respectively matched with the corresponding mounting holes.

5. The classifying device of the ultrafine pulverizer according to claim 4, characterized in that: The fixing assembly includes a fixing column, a limiting spring and an extrusion arc block. The fixing column is fixedly connected to the convex cover and is located below the convex cover. The fixing column has a groove. The extrusion arc block is movably connected to the fixing column and is respectively adapted to the groove and the mounting hole. Both ends of the limiting spring are respectively fixedly connected to the extrusion arc block and the fixing column and are located in the groove.

6. The classifying device of the ultrafine pulverizer according to claim 5, characterized in that: The fixing assembly further comprises a hemispherical block, which is fixedly connected to the fixing column and is located at an end of the fixing column away from the convex cover.

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