CN109049325B - Dust keeper that uses on cement mixer - Google Patents
Dust keeper that uses on cement mixer Download PDFInfo
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- CN109049325B CN109049325B CN201810947513.1A CN201810947513A CN109049325B CN 109049325 B CN109049325 B CN 109049325B CN 201810947513 A CN201810947513 A CN 201810947513A CN 109049325 B CN109049325 B CN 109049325B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
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Abstract
The invention belongs to the technical field of dustproof devices, and particularly relates to a dustproof device used on a cement mixer, which comprises a dustproof plate, a first gear and the like, wherein the dustproof device is provided with a heavy thread ring, when a cement mixing joint is charged and filled, the opened end of a cement mixing shell inclines downwards and upwards, the heavy thread ring rotates along two symmetrical spiral grooves opened on a second fixing ring under the action of gravity, 6 dustproof plates rotate around the axis of a first fixing shaft, the cement mixer can finish the charging or filling work, when the cement mixer works normally, the 6 dustproof plates rotate around the axis of the first fixing shaft to close the opened end of the cement mixing shell, so that when the cement mixer works normally, the dustproof mechanism can play a role in preventing dust in the cement stirring shell from coming out.
Description
Technical Field
The invention belongs to the technical field of dustproof devices, and particularly relates to a dustproof device used on a cement mixer.
Background
The dust keeper that present cement mixer adopted simple structure, the function is single, when cement mixer at the in-process of stirring, because cement mixer's rotary motion, will make the quick quilt of the cement ash in the cement mixer shell to swing, thereby make the job site have many dusts to appear, more dust will spread in the air, but the dust is the enemy of human health, because can take many bacterium viruses and ova to fly upward everywhere in the dust, will very big possible spread the disease. Industrial dust and fine dust can cause construction workers to suffer from various occupational diseases which are difficult to cure, excessive dust on a working site can cause environmental pollution, so that normal life and work of people are influenced, respiratory diseases of human beings are induced, meanwhile, dust on a project site is also harmful to computers, the CPU fan can be blocked by the excessive dust, the fan stops rotating, the result of overheating and burning the CPU is caused, contact among board cards can be influenced, corrosion of a circuit board can be caused, and great economic losses can be caused to enterprises, individuals and countries, so that the design of the dust-proof device used on the cement mixer is very necessary.
The invention designs a dustproof device used on a cement mixer to solve the problems.
Disclosure of Invention
Technical problem to be solved by the invention
The invention aims to solve the problem that the dustproof device used on the cement mixer is provided to overcome the defects that the dustproof device in the cement mixer in the prior art is simple in structure and single in function, and cement ash in a cement mixing shell can be quickly stirred up due to the rotation motion of the cement mixer in the feeding and mixing processes of the cement mixer, so that a lot of dust can appear on a working site.
(II) technical scheme of the invention
In order to solve the defects in the prior art, the invention discloses a dustproof device used on a cement mixer, which is realized by adopting the following technical scheme.
The utility model provides a dust keeper who uses on cement mixer which characterized in that: dustproof mechanism installs in cement stirring shell one end.
The dustproof mechanism comprises a dustproof plate, a second fixing ring, a heavy thread ring, a return spring, a third fixing ring, an annular cavity, a guide strip, a T-shaped ring, a first gear, a second gear, a third gear, a connecting ring, a gear ring, a mounting plate, an accommodating annular groove, a rotating shaft hole, a first fixing shaft, a second fixing shaft, a guide groove, a driving block, a T-shaped annular groove, a spiral groove, a first arc-shaped surface, a second arc-shaped surface and a third arc-shaped surface, wherein the T-shaped annular groove is formed in the outer circular surface of the second fixing ring; two spiral grooves are symmetrically formed in the outer circular surface of one end of the second fixing ring; the end surface of one end, close to the T-shaped ring groove, of the second fixing ring is uniformly provided with 6 rotating shaft holes in the circumferential direction; the end surface of the second fixing ring, which is provided with the rotating shaft hole, is provided with an accommodating ring groove which is not communicated; the inner circular surface of the second fixing ring is fixedly connected with the outer circular surface of the cement stirring shell; two guide grooves are symmetrically formed in the outer circular surface of the heavy thread ring; a driving block is fixedly arranged on the inner circular surface of the heavy thread ring; the heavy thread ring is nested outside the second fixing ring, and the driving blocks are matched with two spiral grooves symmetrically formed in the outer circular surface of one end of the second fixing ring; an annular cavity is formed in the inner circular surface of the third fixing ring, and two guide bars are symmetrically arranged on the inner circular surface of the annular cavity; a T-shaped ring is fixedly arranged on the inner circular surface at one end of the third fixing ring; the third fixing ring is nested outside the second fixing ring, and the heavy thread ring is positioned in the annular cavity; the two guide bars are arranged in a sliding fit manner with the corresponding guide grooves; the T-shaped ring and the T-shaped ring groove form a rotating fit; the return spring is nested outside the second fixing ring, one end of the return spring is fixedly arranged on the end face of the heavy thread ring, and the other end of the return spring is fixedly arranged on the end face of the annular cavity; the outer circular surface of the connecting ring is fixedly connected with the inner circular surface at one end of the third fixing ring; the outer circular surface of one end of the gear ring is fixedly connected with the inner circular surface of the connecting ring, and the gear ring is positioned in the accommodating ring groove; the 6 first fixed shafts are circumferentially and uniformly arranged in corresponding rotating shaft holes formed in the end face of the second fixed ring.
The mounting structures at the 6 first fixing shafts are circumferentially distributed around the axis of the second fixing ring, and for one of the 6 first fixing shafts, a third arc-shaped surface is formed on the end face of one end of the dust guard and matched with the inner circular face of the second fixing ring; a second arc-shaped surface is formed on the side surface of one side of the dustproof plate; a fillet is formed at one end of the intersection of the second arc-shaped surface and the third arc-shaped surface; a through round hole is formed in the end face of the dustproof plate, and the axis of the round hole is superposed with the axis of a fillet formed at one end of the intersection of the second arc-shaped face and the third arc-shaped face; the side surface of the dust-proof plate opposite to the second arc-shaped surface is provided with a first arc-shaped surface, and the axis of the first arc-shaped surface is superposed with the axis of a through round hole formed in the end surface of the dust-proof plate; the first fixed shaft and the end face of the dust guard are provided with through round holes which are matched and installed through keys; the first gear is arranged on the first fixed shaft through a key; one end of the mounting plate is fixedly mounted on the outer circular surface of the second fixing ring; the second fixed shaft is arranged in a circular hole formed in the mounting plate through a bearing; the end face of one end of the second gear is fixedly arranged on the end face of the second fixed shaft; the end face of one end of the third gear is fixedly arranged on the end face, opposite to the second gear, of the second fixed shaft; the second gear is meshed with the first gear; the third gear is meshed with the gear ring; the diameters of the outer circular surfaces of the first gear and the third gear are the same, and the diameter of the third gear is 2 times of the diameter of the outer circular surface of the second gear.
As a further optimization of the technology, as an alternative scheme that the first fixing shaft and the through round hole formed in the end surface of the dust guard are installed in a matched mode through a key, the first fixing shaft and the through round hole formed in the end surface of the dust guard are installed in a welding mode, so that the production and manufacturing cost of the device is reduced.
As a further optimization of the technology, the lubricating oil is coated between the guide groove and the guide strip, and the lubricating oil is coated between the T-shaped ring and the T-shaped ring groove so as to reduce the action of the friction force between the guide groove and the guide strip and the action of the friction force between the T-shaped ring and the T-shaped ring groove.
As a further optimization of the present technology, as an alternative to the fixed connection between the inner circular surface of the second fixing ring and the outer circular surface of the cement mixing shell, the inner circular surface of the second fixing ring and the outer circular surface of the cement mixing shell are connected by a key so as to facilitate the second fixing ring to be conveniently mounted on the cement mixing shell.
As a further optimization of the technology, the purpose of the design that the inner circle surface of one end, away from the T-shaped ring, of the third fixing ring is matched and installed with the outer circle surface of the second fixing ring through the bearing is to facilitate the rotation matching between the third fixing ring and the second fixing ring, and simultaneously, the purpose of protecting the contact surface of the third fixing ring and the second fixing ring can be achieved.
The dustproof mechanism is arranged at one end of the cement stirring shell, so that when the cement stirring machine works normally in a stirring mode, the dustproof mechanism can achieve the purpose of preventing dust in the cement stirring shell from coming out, and when the cement stirring joint is used for loading and filling, the dustproof mechanism can be in an open state in the loading or filling process of the cement stirring machine, so that the cement stirring machine can complete loading or filling work.
The design purpose of the T-shaped ring groove formed in the outer circular surface of the second fixing ring is to facilitate the T-shaped ring arranged on the third fixing ring to form rotating fit, on one hand, the third fixing ring can rotate around the axis of the third fixing ring, and on the other hand, the T-shaped ring and the T-shaped ring groove are matched, so that the T-shaped ring groove can limit the movement of the T-shaped ring in the axis direction; the design purpose that two spiral grooves are symmetrically formed in the outer circular surface at one end of the second fixing ring is as follows:
firstly, when the cement mixer needs to be filled or charged, the driving device can drive the open end of the cement mixing shell to incline downwards and upwards, the heavy thread ring can slide downwards under the action of gravity, the driving block arranged on the heavy thread ring can rotate along one of the two corresponding symmetrical spiral grooves formed on the second fixing ring, the driving block arranged on the heavy thread ring can move under the guiding action of the spiral grooves in the process, because the heavy thread ring has larger mass, the heavy thread ring can generate two motion states under the action of gravity, on one hand, the heavy thread ring can do linear motion along the guide groove, on the other hand, the driving block arranged on the heavy thread ring can do rotary motion around the axis of the heavy thread ring under the spiral guiding action of the spiral grooves, and the rotating heavy thread ring can drive the third fixing ring to move through the matching relationship between the guide groove and the guide bar, the third fixing ring which rotates will drive the connecting ring which is arranged on the third fixing ring to rotate; the connecting ring which rotates drives the gear ring arranged on the connecting ring to rotate, and the gear ring which rotates drives the third gear to move; the third gear drives the second fixed shaft to move, the second fixed shaft drives the second gear to rotate, the second gear drives the first gear to rotate, and the first gear drives the first fixed shaft to rotate; 6 first fixed axles will drive corresponding dust guard and be rotary motion around corresponding first fixed axle, and 6 dust guards keep away from the solid fixed ring's of second axis direction motion, when installing the one end of one of them helicla flute of the drive block motion to two helicla flutes on heavy thread ring, 6 dust guards at this moment will make the open end of cement stirring shell give and open to make the entering and the outflow of the material of can being convenient for in the cement stirring shell, the work that the cement mixer accomplished the filler or filled.
In addition, when the cement mixer finishes filling or charging, the driving device can drive the open end of the cement mixing shell to be in a horizontal state, the heavy thread ring can move under the action of the restoring force of the return spring, the driving block arranged on the heavy thread ring can rotate along one of the two corresponding symmetrical spiral grooves formed in the second fixing ring, the driving block arranged on the heavy thread ring can move under the guiding action of the spiral grooves in the process, because the heavy thread ring has larger mass, the heavy thread ring can generate two motion states under the action of gravity, on one hand, the heavy thread ring can do linear motion along the guide groove, on the other hand, the driving block arranged on the heavy thread ring can do rotary motion around the axis of the heavy thread ring under the spiral guiding action of the spiral grooves, and the rotating heavy thread ring can drive the third fixing ring to move through the matching relationship between the guide groove and the guide strip, the third fixing ring which rotates will drive the connecting ring which is arranged on the third fixing ring to rotate; the connecting ring which rotates drives the gear ring arranged on the connecting ring to rotate, and the moving gear ring drives the third gear, the second fixed shaft, the second gear, the first gear and the first fixed shaft to rotate in sequence; 6 first fixed axles will drive 6 dust guards and will be rotary motion around corresponding first fixed axle, and 6 dust guards are close to the solid fixed ring's of second axis direction motion, when installing the drive block on heavy thread ring and move to the crossing department of two helicla flutes, 6 dust guards at this moment will make the open end of cement stirring shell give and close, thereby make when cement mixer normal stirring during operation, dustproof mechanism can play the purpose that prevents the dust in the cement stirring shell and come out, reach the purpose of the quantity of dust in the environmental protection and the reduction operational environment simultaneously.
The return spring is nested outside the second fixing ring, one end of the return spring is fixedly arranged on the end face of the heavy threaded ring, and the other end of the return spring is fixedly arranged on the end face of the annular cavity and is used for conveniently applying a restoring force to the heavy threaded ring; open on the terminal surface of dust guard one end has the third arcwall face, and the interior circular surface complex design purpose of third arcwall face and the solid fixed ring of second is, when installing the drive block on heavy thread ring and move the one end of one of them helicla flute in two helicla flutes, 6 dust guards this moment will just make the open end of cement stirring shell give and open completely, a complete arcwall face will be constituteed to the third arcwall face of opening on 6 dust guards, will make this complete arcwall face and the solid fixed ring's of second interior circular surface complex like this, thereby make the entering and the outflow of the convenient material of can being convenient for in the cement stirring shell, make the cement mixer can accomplish the work of packing or feeding smoothly.
The side surface of one side of the dust-proof plate is provided with a second arc-shaped surface; a fillet is formed at one end of the intersection of the second arc-shaped surface and the third arc-shaped surface; the design purpose that the axis of the round hole is superposed with the axis of the round corner at one end of the intersection of the second arc-shaped surface and the third arc-shaped surface is convenient for the first fixed shaft and the inner circle surface of the round hole with the through hole on the end surface of the dust-proof plate to form key fit, and meanwhile, the phenomenon of mutual interference can not occur when 6 dust-proof plates move around the axis of the first fixed shaft; the design purpose that the side face of the dust guard opposite to the side face provided with the second arc-shaped face is provided with the first arc-shaped face, and the axis of the first arc-shaped face is superposed with the axis of the through round hole formed in the end face of the dust guard is convenient to form key fit with the first fixed shaft, when 6 dust guard plates are driven by the first fixed shaft, the 6 dust guard plates cannot interfere with each other in the movement process, meanwhile, because the diameters of the outer circular faces of the first gear and the third gear are the same, and the diameter of the third gear is 2 times of the diameter of the outer circular face of the second gear, the rotation movement on the gear ring can be transmitted to the first gear through the third gear and the second gear, so that the first gear is directly driven to move relatively to the gear ring, the diameter of the outer circular face of the gear ring at the moment can be reduced, and the rotation angle of the gear ring at the moment can be larger relatively to the rotation angle of the first gear directly driven, therefore, when the gear ring drives the first gear, the driving process is more reliable, and the driving resistance is reduced, so that the gear ring is prevented from being blocked difficultly in the process of driving the first gear; the dust guard plate is driven by the gear ring, the third gear, the second gear, the first gear and the first fixed shaft, so that the external size of the dust guard mechanism in the device is smaller, the application range of a cement mixer provided with the device is enlarged, and the application space of the cement mixer provided with the device is more flexible.
(III) advantages and advantageous effects of the invention
Compared with the traditional dustproof device technology, the dustproof device provided by the invention is provided with the heavy thread ring, when a cement stirring joint is charged and filled, the opened end of the cement stirring shell inclines downwards and upwards, the heavy thread ring rotates along two symmetrical spiral grooves opened on the second fixing ring under the action of gravity, 6 dustproof plates rotate around the axis of the first fixing shaft, the 6 dustproof plates can be in an opened state when the cement stirring machine is charged or filled, so that the cement stirring machine can complete charging or filling work, when the cement stirring machine works normally, the 6 dustproof plates rotate around the axis of the first fixing shaft, the purpose of closing the open end of the cement stirring shell is achieved, and when the cement stirring machine works normally, the dustproof mechanism can play a role in preventing dust in the cement stirring shell from coming out.
Drawings
Fig. 1 is a schematic view of the overall component distribution.
Fig. 2 is a schematic view of a dust-proof mechanism mounting structure.
Fig. 3 is a schematic view of a second retaining ring mounting arrangement.
FIG. 4 is a schematic structural view of a cement mixing shell.
Fig. 5 is a schematic view of a dust-proof plate mounting structure.
Fig. 6 is a schematic view of a first fixed shaft mounting structure.
Fig. 7 is a schematic view of a return spring mounting structure.
Figure 8 is a schematic view of a connection ring mounting arrangement.
Fig. 9 is a schematic view of a bar mounting structure.
FIG. 10 is a schematic view of a T-ring mounting arrangement.
Fig. 11 is a schematic view of a drive block mounting structure.
Fig. 12 is a schematic view of a T-ring configuration.
Figure 13 is a schematic view of a second fixed ring structure.
Figure 14 is a schematic view of a second fixed ring structure (two).
Fig. 15 is a schematic view of a second gear mounting structure.
Fig. 16 is a schematic view of a dust-proof plate structure.
Fig. 17 is a schematic view of a first gear mounting structure.
Fig. 18 is a schematic view of a third gear mounting structure.
Number designation in the figures: 1. a dust-proof mechanism; 2. a cement mixing shell; 3. a dust-proof plate; 7. a second retaining ring; 8. a heavy thread ring; 9. a return spring; 10. a third fixing ring; 16. an annular cavity; 17. conducting bars; 18. a T-shaped ring; 19. a guide groove; 20. a drive block; 21. a T-shaped ring groove; 22. a helical groove; 23. a first arc-shaped surface; 24. a second arcuate surface; 25. a third arc-shaped surface; 30. a first gear; 31. a second gear; 32. a third gear; 33. a connecting ring; 34. a ring gear; 35. mounting a plate; 36. a receiving ring groove; 37. a rotating shaft hole; 38. a first fixed shaft; 39. a second stationary shaft.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1, 2 and 4, the dustproof mechanism 1 is installed at one end of the cement mixing shell 2.
As shown in fig. 3, the dustproof mechanism 1 includes a dustproof plate 3, a second fixing ring 7, a heavy thread ring 8, a return spring 9, a third fixing ring 10, an annular cavity 16, a guide bar 17, a T-shaped ring 18, a first gear 30, a second gear 31, a third gear 32, a connecting ring 33, a gear ring 34, a mounting plate 35, a receiving ring groove 36, a rotating shaft hole 37, a first fixing shaft 38, a second fixing shaft 39, a guide groove 19, a driving block 20, a T-shaped ring groove 21, a spiral groove 22, a first arc-shaped surface 23, a second arc-shaped surface 24 and a third arc-shaped surface 25, as shown in fig. 13 and 14, wherein a T-shaped ring groove 21 is formed on an outer circumferential surface of the second fixing ring 7; as shown in fig. 13, two spiral grooves 22 are symmetrically formed on the outer circumferential surface of one end of the second fixing ring 7; as shown in fig. 13, the end surface of the second fixing ring 7 near one end of the T-shaped ring groove 21 is circumferentially and uniformly provided with 6 rotating shaft holes 37; as shown in fig. 13 and 14, the end surface of the second fixing ring 7 with the rotating shaft hole 37 is provided with a non-through accommodating ring groove 36; as shown in fig. 3, the inner circular surface of the second fixing ring 7 is fixedly connected with the outer circular surface of the cement mixing shell 2; as shown in fig. 11, two guide grooves 19 are symmetrically formed on the outer circumferential surface of the heavy thread ring 8; as shown in fig. 11, a driving block 20 is fixedly mounted on the inner circumferential surface of the heavy thread ring 8; as shown in fig. 3, the heavy thread ring 8 is nested outside the second fixing ring 7, and the driving block 20 is matched with two spiral grooves 22 symmetrically formed on the outer circumferential surface of one end of the second fixing ring 7; as shown in fig. 8 and 9, an annular cavity 16 is formed on the inner circumferential surface of the third fixing ring 10, and two guide bars 17 are symmetrically installed on the inner circumferential surface of the annular cavity 16; as shown in fig. 7, a T-shaped ring 18 is fixedly mounted on an inner circumferential surface of one end of the third fixing ring 10; the third fixing ring 10 is nested outside the second fixing ring 7, and the heavy thread ring 8 is positioned in the annular cavity 16; as shown in fig. 9, the two guide bars 17 are mounted in sliding fit with the corresponding guide grooves 19; as shown in fig. 10, the T-ring 18 forms a running fit with the T-ring groove 21; the return spring 9 is nested outside the second fixing ring 7, one end of the return spring 9 is fixedly arranged on the end face of the heavy thread ring 8, and the other end of the return spring 9 is fixedly arranged on the end face of the annular cavity 16; as shown in fig. 8, the outer circumferential surface of the connection ring 33 is fixedly connected with the inner circumferential surface of one end of the third fixing ring 10; as shown in fig. 8, the outer circumferential surface of one end of the ring gear 34 is fixedly connected with the inner circumferential surface of the connecting ring 33, and the ring gear 34 is located in the accommodating ring groove 36; as shown in fig. 6, 6 first fixed shafts 38 are circumferentially and uniformly mounted in corresponding rotating shaft holes 37 formed in the end surface of the second fixed ring 7.
As shown in fig. 5, 6 and 17, the mounting structures of the 6 first fixing shafts 38 are circumferentially distributed around the axis of the second fixing ring 7, and for one of the 6 first fixing shafts 38, as shown in fig. 16, the end face of one end of the dust-proof plate 3 is provided with a third arc-shaped surface 25, and the third arc-shaped surface 25 is matched with the inner circular surface of the second fixing ring 7; as shown in fig. 16, a second arc-shaped surface 24 is formed on the side surface of one side of the dust-proof plate 3; as shown in fig. 16, a round corner is formed at one end of the intersection of the second arc-shaped surface 24 and the third arc-shaped surface 25; as shown in fig. 16, a through circular hole is formed in the end surface of the dust-proof plate 3, and the axis of the circular hole coincides with the axis of a fillet formed at one end of the intersection of the second arc-shaped surface 24 and the third arc-shaped surface 25; as shown in fig. 16, the side surface of the dust-proof plate 3 opposite to the second arc-shaped surface 24 is provided with a first arc-shaped surface 23, and the axis of the first arc-shaped surface 23 coincides with the axis of a through circular hole formed in the end surface of the dust-proof plate 3; as shown in fig. 15, the first fixing shaft 38 is fitted with a through hole formed in the end surface of the dust-proof plate 3 by a key; as shown in fig. 18, the first gear 30 is mounted on the first fixed shaft 38 by a key; as shown in fig. 7, 10 and 12, one end of the mounting plate 35 is fixedly mounted on the outer circumferential surface of the second fixing ring 7; as shown in fig. 18, the second fixed shaft 39 is bearing-mounted in a circular hole opened in the mounting plate 35; the end face of one end of the second gear 31 is fixedly arranged on the end face of the second fixed shaft 39; as shown in fig. 18, an end face of one end of the third gear 32 is fixedly mounted on an end face of the second fixed shaft 39 opposite to the second gear 31; the second gear 31 is meshed with the first gear 30; the third gear 32 meshes with the ring gear 34; as shown in fig. 18, the outer circumferential surface diameters of the first gear 30 and the third gear 32 are the same, and the diameter of the third gear 32 is 2 times the outer circumferential surface diameter of the second gear 31.
As an alternative scheme of the fitting and installation of the first fixing shaft 38 and the circular hole formed in the end surface of the dust-proof plate 3 through the key, the first fixing shaft 38 and the circular hole formed in the end surface of the dust-proof plate 3 are installed through welding, so that the production and manufacturing cost of the device of the invention is reduced.
Lubricating oil is coated between the guide groove 19 and the guide strip 17, and the lubricating oil is coated between the T-shaped ring 18 and the T-shaped ring groove 21 so as to reduce the action of friction force between the guide groove 19 and the guide strip 17 and the action of friction force between the T-shaped ring 18 and the T-shaped ring groove 21.
As an alternative to the fixed connection of the inner circular surface of the second fixing ring 7 and the outer circular surface of the cement mixing shell 2, the inner circular surface of the second fixing ring 7 and the outer circular surface of the cement mixing shell 2 are connected by a key so as to facilitate the convenient installation of the second fixing ring 7 on the cement mixing shell 2.
The purpose of the design that the inner circle surface of the end, far away from the T-shaped ring 18, of the third fixing ring 10 and the outer circle surface of the second fixing ring 7 are installed in a matched mode through a bearing is to facilitate the rotation matching between the third fixing ring 10 and the second fixing ring 7, and meanwhile, the purpose of protecting the contact surface of the third fixing ring 10 and the second fixing ring 7 can be achieved.
The helix angle of helicla flute 22 is great, and at the rotatory in-process of cement stirring shell, between second solid fixed ring 7 and the heavy thread ring 8, be in the auto-lock state in the direction of rotation, the solid fixed ring of second promptly and heavy thread ring can drive the motion in the direction of rotation each other, and along the axis direction, can the inter motion, and because screw-thread fit, will enclose the axis rotation along the axis direction motion in-process.
The specific implementation mode is as follows: firstly, the device can be arranged on a self-falling type stirrer of which the cement stirring shell 2 is driven to rotate by a driving device, and can also be arranged on a forced stirrer of which the blades are driven to rotate by the driving device in the cement stirring shell 2, but the two types of cement stirrers both need to meet the conditions that the loading work is carried out when the opening end of the cement stirring shell 2 is tilted upwards, and the unloading work is carried out when the opening end of the cement stirring shell 2 is tilted downwards; when the device is arranged on the cement stirring shell 2 on the gravity type stirrer, when the cement stirring shell 2 is in a horizontal state, the cement stirrer can normally stir cement, at the moment, the cement stirring shell 2 is driven by the driving device to rotate, the moving cement stirring can drive the second fixing ring 7 arranged on the cement stirring shell to rotate, the moving second fixing ring 7 can drive the heavy thread ring 8 to rotate through the matching of the spiral groove 22 formed on the moving second fixing ring and the driving block 20, the spiral groove 22 can not drive the driving block 20 to move along the spiral groove 22, the moving heavy thread ring 8 drives the guide bars 17, the third fixing ring 10, the connecting ring 33, the gear ring 34, the third gear 32, the second fixing shaft 39, the second gear 31, the first gear 30 and the first fixing shaft 38 to move around the axis of the second fixing ring 7 in sequence; since the second fixed ring 7 and the heavy threaded ring 8 do not rotate relatively, the first gear 30, the second gear 31 and the third gear 32 do not rotate around the axes of the first gear, and the dust-proof plate 3 does not rotate around the axes of the first fixed shaft in the process; when the equipment is arranged on a forced mixer, when the cement mixing shell 2 is in a horizontal state, the cement mixer can normally mix cement, the cement mixing shell 2 is in a static state, and the cement mixing shell 2 and the equipment are in a relatively static state; when the cement mixer needs to be filled or charged, the two mixers are suitable for the following principle, the driving device drives the open end of the cement mixing shell 2 to incline downwards and upwards, the heavy thread ring 8 slides downwards under the action of gravity, the driving block 20 arranged on the heavy thread ring 8 rotates along one of the two corresponding symmetrical spiral grooves 22 formed on the second fixing ring 7, the driving block 20 arranged on the heavy thread ring 8 moves under the guiding action of the spiral grooves 22 in the process, and the heavy thread ring 8 moves under the action of gravity due to the larger mass of the heavy thread ring 8, so that the heavy thread ring 8 moves in two motion states under the action of the gravity, on one hand, the heavy thread ring 8 moves linearly along the guide groove 19, on the other hand, the driving block 20 arranged on the heavy thread ring 8 rotates around the axis of the heavy thread ring 22 under the spiral guiding action, the rotating heavy thread ring 8 will drive the third fixing ring 10 to move through the matching relationship between the guide groove 19 and the guide bar 17, and the rotating third fixing ring 10 will drive the connecting ring 33 mounted thereon to rotate; the rotationally moving connecting ring 33 will drive the gear ring 34 mounted thereon to rotate, and the rotationally moving gear ring 34 will drive the third gear 32 to move; the third gear 32 will drive the second fixed shaft 39 to move, the second fixed shaft 39 will drive the second gear 31 to rotate, the second gear 31 will drive the first gear 30 to rotate, and the first gear 30 will drive the first fixed shaft 38 to rotate; 6 first fixed axle 38 will drive corresponding dust guard 3 and be rotary motion around corresponding first fixed axle 38, and 6 dust guards 3 keep away from the axis direction motion of the solid fixed ring 7 of second, when installing drive block 20 on heavy screw ring 8 and move the one end of one of them helicla flute 22 in two helicla flutes 22, 6 dust guards 3 at this moment will make the open end of cement stirring shell 2 give and open to make the entering and the play of the material of can being convenient for in the cement stirring shell 2, the work of packing or feeding is accomplished to the cement mixer.
In addition, when the cement mixer finishes filling or charging, the driving device drives the open end of the cement mixing shell 2 to be in a horizontal state, the heavy thread ring 8 moves under the restoring force of the return spring 9, the driving block 20 mounted on the heavy thread ring 8 rotates along one of the two symmetrical spiral grooves 22 formed on the second fixing ring 7, the driving block 20 mounted on the heavy thread ring 8 moves under the guiding action of the spiral grooves 22, and due to the large mass of the heavy thread ring 8, the heavy thread ring 8 moves under the action of gravity in two motion states, on one hand, the heavy thread ring 8 moves linearly along the guide grooves 19, on the other hand, the driving block 20 mounted on the heavy thread ring 8 rotates around the axis under the spiral guiding action of the spiral grooves 22, the rotating heavy thread ring 8 will drive the third fixing ring 10 to move through the matching relationship between the guide groove 19 and the guide bar 17, and the rotating third fixing ring 10 will drive the connecting ring 33 mounted thereon to rotate; the connecting ring 33 which rotates will drive the gear ring 34 which is installed on the connecting ring to rotate, and the moving gear ring 34 will sequentially drive the third gear 32, the second fixed shaft 39, the second gear 31, the first gear 30 and the first fixed shaft 38 to rotate; 6 first fixed axle 38 will drive 6 dust guards 3 and will be rotary motion around corresponding first fixed axle 38, and 6 dust guards 3 are close to the axis direction motion of the solid fixed ring 7 of second, when installing the drive block 20 on heavy thread ring 8 and moving to the crossing department of two helicla flutes 22, 6 dust guards 3 at this moment will make the open end of cement stirring shell 2 give and close, thereby make when the normal stirring work of cement mixer, dustproof mechanism 1 can play the purpose that prevents the dust in the cement stirring shell 2 and come out, reach the purpose of protecting the environment and reducing the quantity of dust in the operational environment simultaneously.
In summary, the above embodiments are not intended to be limiting embodiments of the present invention, and those skilled in the art can make several modifications and refinements based on the essence of the present invention, and these modifications and refinements should be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides a dust keeper who uses on cement mixer which characterized in that: the dustproof mechanism is arranged at one end of the cement stirring shell;
the dustproof mechanism comprises a dustproof plate, a second fixing ring, a heavy thread ring, a return spring, a third fixing ring, an annular cavity, a guide strip, a T-shaped ring, a first gear, a second gear, a third gear, a connecting ring, a gear ring, a mounting plate, an accommodating annular groove, a rotating shaft hole, a first fixing shaft, a second fixing shaft, a guide groove, a driving block, a T-shaped annular groove, a spiral groove, a first arc-shaped surface, a second arc-shaped surface and a third arc-shaped surface, wherein the T-shaped annular groove is formed in the outer circular surface of the second fixing ring; two spiral grooves are symmetrically formed in the outer circular surface of one end of the second fixing ring; the end surface of one end, close to the T-shaped ring groove, of the second fixing ring is uniformly provided with 6 rotating shaft holes in the circumferential direction; the end surface of the second fixing ring, which is provided with the rotating shaft hole, is provided with an accommodating ring groove which is not communicated; the inner circular surface of the second fixing ring is fixedly connected with the outer circular surface of the cement stirring shell; two guide grooves are symmetrically formed in the outer circular surface of the heavy thread ring; a driving block is fixedly arranged on the inner circular surface of the heavy thread ring; the heavy thread ring is nested outside the second fixing ring, and the driving blocks are matched with two spiral grooves symmetrically formed in the outer circular surface of one end of the second fixing ring; an annular cavity is formed in the inner circular surface of the third fixing ring, and two guide bars are symmetrically arranged on the inner circular surface of the annular cavity; a T-shaped ring is fixedly arranged on the inner circular surface at one end of the third fixing ring; the third fixing ring is nested outside the second fixing ring, and the heavy thread ring is positioned in the annular cavity; the two guide bars are arranged in a sliding fit manner with the corresponding guide grooves; the T-shaped ring and the T-shaped ring groove form a rotating fit; the return spring is nested outside the second fixing ring, one end of the return spring is fixedly arranged on the end face of the heavy thread ring, and the other end of the return spring is fixedly arranged on the end face of the annular cavity; the outer circular surface of the connecting ring is fixedly connected with the inner circular surface at one end of the third fixing ring; the outer circular surface of one end of the gear ring is fixedly connected with the inner circular surface of the connecting ring, and the gear ring is positioned in the accommodating ring groove; the 6 first fixed shafts are uniformly arranged in corresponding rotating shaft holes formed in the end face of the second fixed ring in the circumferential direction;
the mounting structures at the 6 first fixing shafts are circumferentially distributed around the axis of the second fixing ring, and for one of the 6 first fixing shafts, a third arc-shaped surface is formed on the end face of one end of the dust guard and matched with the inner circular face of the second fixing ring; a second arc-shaped surface is formed on the side surface of one side of the dustproof plate; a fillet is formed at one end of the intersection of the second arc-shaped surface and the third arc-shaped surface; a through round hole is formed in the end face of the dustproof plate, and the axis of the round hole is superposed with the axis of a fillet formed at one end of the intersection of the second arc-shaped face and the third arc-shaped face; the side surface of the dust-proof plate opposite to the second arc-shaped surface is provided with a first arc-shaped surface, and the axis of the first arc-shaped surface is superposed with the axis of a through round hole formed in the end surface of the dust-proof plate; the first fixed shaft and the end face of the dust guard are provided with through round holes which are matched and installed through keys; the first gear is arranged on the first fixed shaft through a key; one end of the mounting plate is fixedly mounted on the outer circular surface of the second fixing ring; the second fixed shaft is arranged in a circular hole formed in the mounting plate through a bearing; the end face of one end of the second gear is fixedly arranged on the end face of the second fixed shaft; the end face of one end of the third gear is fixedly arranged on the end face, opposite to the second gear, of the second fixed shaft; the second gear is meshed with the first gear; the third gear is meshed with the gear ring; the diameters of the outer circular surfaces of the first gear and the third gear are the same, and the diameter of the third gear is 2 times of the diameter of the outer circular surface of the second gear.
2. The dust-proof device for use in a cement mixer according to claim 1, wherein: lubricating oil is coated between the guide groove and the guide strip, and lubricating oil is coated between the T-shaped ring and the T-shaped ring groove.
3. The dust-proof device for use in a cement mixer according to claim 1, wherein: as an alternative scheme for fixedly connecting the inner circular surface of the second fixing ring with the outer circular surface of the cement stirring shell, the inner circular surface of the second fixing ring is connected with the outer circular surface of the cement stirring shell through a key.
4. The dust-proof device for use in a cement mixer according to claim 1, wherein: and an inner circular surface of one end, far away from the T-shaped ring, of the third fixing ring and an outer circular surface of the second fixing ring are installed in a matched mode through a bearing.
5. The dust-proof device for use in a cement mixer according to claim 1, wherein: as an alternative scheme that the first fixing shaft and the through round holes formed in the end face of the dust guard are installed in a matched mode through keys, the first fixing shaft and the through round holes formed in the end face of the dust guard are installed in a welding mode.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810947513.1A CN109049325B (en) | 2018-08-20 | 2018-08-20 | Dust keeper that uses on cement mixer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810947513.1A CN109049325B (en) | 2018-08-20 | 2018-08-20 | Dust keeper that uses on cement mixer |
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| CN109049325A CN109049325A (en) | 2018-12-21 |
| CN109049325B true CN109049325B (en) | 2020-01-14 |
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| KR100768246B1 (en) * | 2006-07-18 | 2007-10-24 | 원하종합건설 주식회사 | Mixer for fiber reinforced mortar and repair-reinforcement method using thereof |
| CN203697249U (en) * | 2013-12-12 | 2014-07-09 | 河北联合大学 | Dustproof type concrete mixer |
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| CN109049325A (en) | 2018-12-21 |
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Effective date of registration: 20191219 Address after: 530000 Jinyuan Road, Shiguling Industrial Park, Litang Town Industrial Park, Binyang County, Nanning City, Guangxi Zhuang Autonomous Region Applicant after: Zhonggui Electric Power Equipment Co., Ltd. Address before: 518000 Room 601, North Tower, Chao Hua mansion 1013, Dongmen street, Luohu District, Shenzhen, Guangdong. Applicant before: Shenzhen Cheng Lang Technology Co., Ltd. |
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