CN216077627U

CN216077627U - Blade type fan special for strong-crushing high-efficiency energy-saving sweeper

Info

Publication number: CN216077627U
Application number: CN202122585973.4U
Authority: CN
Inventors: 高悬; 林新强; 俞荐
Original assignee: Taizhou Huanfeng Energy Saving Technology Co ltd
Current assignee: Taizhou Huanfeng Energy Saving Technology Co ltd
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-03-18
Anticipated expiration: 2031-10-26

Abstract

The utility model discloses a blade type fan special for a strong-crushing high-efficiency energy-saving sweeper, which belongs to the technical field of road sweeping equipment accessories and comprises a volute with an air outlet and an impeller arranged in the volute, wherein a front mounting opening is arranged on the front side of the volute, an air inlet cover plate is arranged at the front mounting opening, an air inlet is arranged on the air inlet cover plate, an annular air inlet flange is arranged at the edge of the air inlet, the annular air inlet flange sequentially comprises an outer cylindrical section, a frustum section and an inner cylindrical section from outside to inside, the diameter of the outer cylindrical section is smaller than that of the inner cylindrical section, the diameter of the outer end of the frustum section is the same as that of the outer cylindrical section, the diameter of the inner end is the same as that of the inner cylindrical section, a rear mounting opening is arranged on the rear side of the volute, and a transmission device for providing power for the impeller is arranged at the rear mounting opening, so that the effects of reducing energy loss, improving the air volume and the air pressure are achieved, and further improving the efficiency of the fan.

Description

Blade type fan special for strong-crushing high-efficiency energy-saving sweeper

Technical Field

The utility model relates to the field of road sweeping equipment accessories, in particular to a blade type fan special for a strong-crushing high-efficiency energy-saving sweeper.

Background

With the rapid development of economy and the deterioration of environment, especially the appearance of new coronavirus, the harmonious development of human and environment becomes the subject of the current society. The country vigorously renovates pollution industries, backward productivity and equipment, encourages scientific and technological innovation, and promotes energy conservation and emission reduction.

The sweeper is used as a main force army of urban sanitation and plays a vital role in cleaning conditions of cities. The suction power source in the sweeper and the key equipment for crushing and recycling the garbage are built-in centrifugal fans, the suction force of the fans is required to be large, the sweeper has a good crushing function, and the efficiency is high.

Because the fan is installed in the motor sweeper, certain requirements are provided for the size, especially the size of the butt joint interface needs to be consistent, and the fan structure with the conventional design at present hardly meets the specified requirements for air volume and air pressure under the condition of limiting the size of the butt joint interface.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, at least solves the technical problems in the related technology to a certain extent, and provides a special blade type fan for a strong-crushing high-efficiency energy-saving sweeper, so as to achieve the purposes of reducing energy loss, improving air volume and air pressure and further improving fan efficiency.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides a special fan of broken energy-efficient motor sweeper by force of blade formula, is including the spiral case that has the air outlet and locate the impeller in the spiral case, the front side of spiral case is equipped with preceding installing port, preceding installing port department is equipped with the air inlet apron, be equipped with the air intake on the air inlet apron, the edge of air intake is equipped with annular air inlet flange, annular air inlet flange includes outer cylinder section, frustum section and interior cylinder section in proper order from outside to inside, the diameter of outer cylinder section is less than the diameter of interior cylinder section, the diameter of the outer end of frustum section is the same with the diameter of outer cylinder section, and the diameter of inner is the same with the diameter of interior cylinder section, the rear side of spiral case is equipped with the back installing port, back installing port department is equipped with the transmission that provides power for the impeller.

As specific embodiments of the present invention, the following may be preferred: the inner end of the inner cylindrical section extends towards the inner part of the volute, and the outer end of the inner cylindrical section is flush with the plane where the air inlet cover plate is located.

As specific embodiments of the present invention, the following may be preferred: the transmission device comprises a rotating shaft, a bearing assembly, a shaft sleeve and a belt pulley, wherein the rotating shaft sequentially comprises an impeller section, a limiting section, a bearing section and a belt pulley section from inside to outside, the impeller is sleeved on the peripheral side of the impeller section, the bearing assembly is sleeved on the peripheral side of the bearing section, the shaft sleeve is sleeved on the peripheral side of the bearing assembly, the belt pulley is sleeved on the peripheral side of the belt pulley section, the diameter of the limiting section is larger than that of the impeller section, a first step is formed between the impeller section and the limiting section, one side of the impeller is abutted against the first step, a first pressing sheet is arranged on the other side of the impeller, the impeller is connected with the rotating shaft through a bolt to realize fixed installation with the impeller section, the diameter of the bearing section is larger than that of the belt pulley section, a second step is formed between the belt pulley section and the bearing section, and one side of the belt pulley is abutted against the second step, the other side is equipped with the second preforming, the belt pulley passes the second preforming through the bolt and is connected the realization with the pivot and the fixed mounting of belt pulley section, the periphery side of axle sleeve outwards extends and forms outer annular bulge, the axle sleeve passes outer annular bulge through the bolt and is connected the realization with the fixed mounting of spiral case with the spiral case is connected.

As specific embodiments of the present invention, the following may be preferred: the bearing assembly comprises two pairs of cylindrical roller bearings and a limiting sleeve, the inner peripheral side of the shaft sleeve is provided with an inner annular protrusion for separating the two pairs of cylindrical roller bearings, one side of the limiting sleeve is abutted with the belt pulley, the other side of the limiting sleeve is abutted with one side of one of the cylindrical roller bearings, the other side of the cylindrical roller bearing is abutted with one side of the inner annular protrusion, the diameter of the limiting section is larger than that of the bearing section, a third step is formed between the bearing section and the limiting section, the other side of the cylindrical roller bearing is abutted with the third step, and the other side of the cylindrical roller bearing is abutted with the other side of the inner annular protrusion.

As specific embodiments of the present invention, the following may be preferred: the bearing assembly further comprises a first sealing ring and a second sealing ring, one side, close to the impeller, of the shaft sleeve is provided with a sealing cover, the sealing cover is fixedly installed on the shaft sleeve through a bolt, the side face of the sealing cover is provided with an annular insertion flange inserted between the shaft sleeve and the rotating shaft, a first annular sealing groove for the first sealing ring to be placed is formed between the annular insertion flange and the rotating shaft, one side, far away from the impeller, of the inner peripheral surface of the shaft sleeve is sequentially provided with a second annular sealing groove and a clamp spring groove for the second sealing ring to be placed, and a clamp spring for limiting the second sealing ring is arranged in the clamp spring groove.

The technical effects of the utility model are mainly reflected in the following aspects: set the diameter of outer cylinder section to being less than the diameter of interior cylinder section, satisfy the butt joint interface size of motor sweeper, the frustum section then can expand the air inlet and scatter, it is more even to make the air inlet distribute, interior cylinder section then can be with the air inlet of scattering through the frustum section expansion convergence direction, let the air inlet better aim at the air inlet portion of impeller, so, even by confirming the outer cylinder section of less size, also can form great amount of wind and wind pressure, the effect of remedying the air inlet is reached to the cylinder section in the utilization. Interior cylinder section is close to with the impeller, has less clearance, and this design utilizes interior cylinder section to block the energy loss of interior leakage at impeller top, improves fan efficiency.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic perspective view of another embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of the present invention;

fig. 4 is an enlarged view of a portion a in fig. 3.

Reference numerals: 1. a volute; 2. an impeller; 3. an air outlet; 4. an air inlet cover plate; 5. an air inlet; 6. an annular air intake flange; 61. an outer cylindrical section; 62. a frustum section; 63. an inner cylindrical section; 7. a rotating shaft; 71. an impeller section; 72. a limiting section; 73. a bearing section; 74. a pulley section; 8. a bearing assembly; 81. a cylindrical roller bearing; 82. a limiting sleeve; 83. a first seal ring; 84. a second seal ring; 9. a shaft sleeve; 10. a belt pulley; 11. a first step; 12. a first tablet; 13. a second step; 14. a second tabletting; 15. an outer annular projection; 16. an inner annular protrusion; 17. a third step; 18. a sealing cover; 19. an annular insertion flange; 20. a first annular seal groove; 21. a second annular seal groove; 22. a clamp spring groove; 23. and a clamp spring.

Detailed Description

The embodiments of the present invention will be described in detail below, examples of which are illustrated in the accompanying drawings, and the embodiments described below by referring to the drawings are exemplary and intended to explain the present invention so that the technical aspects of the present invention can be more easily understood and appreciated, and are not to be construed as limiting the present invention.

Examples

A special fan for a blade type strong crushing high-efficiency energy-saving sweeper is disclosed, and shown in a figure 1, a figure 2 and a figure 3, the special fan for the blade type strong crushing high-efficiency energy-saving sweeper comprises a volute 1 with an air outlet 3 and an impeller 2 arranged in the volute 1, a front mounting opening is arranged on the front side of the volute 1, an air inlet cover plate 4 is arranged at the front mounting opening, an air inlet 5 is arranged on the air inlet cover plate 4, an annular air inlet flange 6 is arranged at the edge of the air inlet 5, the annular air inlet flange 6 sequentially comprises an outer cylindrical section 61 from outside to inside, frustum section 62 and interior cylinder section 63, the diameter of outer cylinder section 61 is less than the diameter of interior cylinder section 63, and the diameter of the outer end of frustum section 62 is the same with the diameter of outer cylinder section 61, and the diameter of inner is the same with the diameter of interior cylinder section 63, and the rear side of spiral case 1 is equipped with the back installing port, and back installing port department is equipped with the transmission that provides power for impeller 2.

Wherein, annular air inlet flange 6 is by keeping away from spiral case 1 to being close to the turbine direction to interior direction ring annular air inlet flange 6, the diameter of outer cylinder section 61 sets to the diameter that is less than interior cylinder section 63, satisfy the butt joint interface size of motor sweeper, frustum section 62 then can scatter the air inlet expansion, it is more even to make the air inlet distribute, interior cylinder section 63 then can converge the air inlet of scattering through frustum section 62 expansion and lead, let the better air inlet portion of aiming at impeller 2 of air inlet, so, even by confirming less size outer cylinder section 61, also can form great amount of wind and wind pressure, utilize interior cylinder section 63 to reach the effect of compensatying the air inlet.

The inner end of the inner cylindrical section 63 extends towards the inner part of the volute 1, and the outer end is flush with the plane of the air inlet cover plate 4.

The inner cylindrical section 63 is close to the impeller 2, but a small gap still exists, and the design utilizes the inner cylindrical section 63 to block the energy loss of the inner leakage of the top (the part close to the air inlet 5) of the impeller 2, so that the efficiency of the fan is improved.

Referring to fig. 4, the transmission device includes a rotating shaft 7, a bearing assembly 8, a shaft sleeve 9 and a belt pulley 10, the rotating shaft 7 includes an impeller section 71, a limiting section 72, a bearing section 73 and a belt pulley section 74 from inside to outside in sequence, an impeller 2 is sleeved on the outer periphery of the impeller section 71, the bearing assembly 8 is sleeved on the outer periphery of the bearing section 73, the shaft sleeve 9 is sleeved on the outer periphery of the bearing assembly 8, the belt pulley 10 is sleeved on the outer periphery of the belt pulley section 74, the diameter of the limiting section 72 is larger than that of the impeller section 71, a first step 11 is formed between the impeller section 71 and the limiting section 72, one side of the impeller 2 is abutted against the first step 11, the other side is provided with a first pressing plate 12, the impeller 2 is connected with the rotating shaft 7 through the first pressing plate 12 by a bolt to realize fixed installation with the impeller section 71, the diameter of the bearing section 73 is larger than that of the belt pulley section 74, a second step 13 is formed between the belt pulley section 74 and the bearing section 73, one side of belt pulley 10 is contradicted with second step 13, and the opposite side is equipped with second preforming 14, and belt pulley 10 passes second preforming 14 through the bolt and is connected the realization with belt pulley section 74 with pivot 7 fixed mounting, and the periphery side of axle sleeve 9 outwards extends and forms outer annular bulge 15, and axle sleeve 9 passes outer annular bulge 15 through the bolt and is connected the realization with spiral case 1 fixed mounting with spiral case 1.

Wherein, the pivot 7 is by being close to the turbine to keeping away from spiral case 1 direction to outer pivot 7 of indicating from inside to outside, the epaxial impeller section 71 of pivot 7, bearing section 73 and belt pulley section 74 correspond impeller 2 respectively, bearing assembly 8 and belt pulley 10, provide stable suitable position installation for each part, and through spacing section 72 cooperation with impeller 2 and belt pulley 10 stable installation, the pine of impeller 2 and belt pulley 10 has been avoided taking off, in addition, fixed mounting is realized through outer annular bulge 15 cooperation bolt of its week side to axle sleeve 9, indirect for pivot 7 provides stable installation environment, and then effectively guaranteed impeller 2's installation reliable and stable, difficult emergence is rocked in rotatory process, stopped impeller 2 and interior cylinder section 63 and taken place to wipe and bump.

The bearing assembly 8 comprises two pairs of cylindrical roller bearings 81 and a limiting sleeve 82, an inner annular bulge 16 which separates the two pairs of cylindrical roller bearings 81 is arranged on the inner peripheral side of the shaft sleeve 9, one side of the limiting sleeve 82 is abutted with the belt pulley 10, the other side of the limiting sleeve is abutted with one side of one cylindrical roller bearing 81, the other side of the cylindrical roller bearing 81 is abutted with one side of the inner annular bulge 16, the diameter of the limiting section 72 is larger than that of the bearing section 73, a third step 17 is formed between the bearing section 73 and the limiting section 72, one side of the other cylindrical roller bearing 81 is abutted with the third step 17, and the other side of the other cylindrical roller bearing is abutted with the other side of the inner annular bulge 16.

The cylindrical roller bearings 81 are adopted, so that the radial load capacity and the impact load capacity are ensured to be large, the high-speed rotation is also suitable, the limiting measures are adopted for the two sides of the two pairs of cylindrical roller bearings 81, the stable operation of the two pairs of cylindrical roller bearings 81 is completely ensured, and the assistance is further provided for the stable rotation of the impeller 2.

The bearing assembly 8 further comprises a first sealing ring 83 and a second sealing ring 84, a sealing cover 18 is arranged on one side, close to the impeller 2, of the shaft sleeve 9, the sealing cover 18 is fixedly mounted with the shaft sleeve 9 through bolts, an annular insertion flange 19 inserted between the shaft sleeve 9 and the rotating shaft 7 is arranged on the side face of the sealing cover 18, a first annular sealing groove 20 for placing the first sealing ring 83 is formed between the annular insertion flange 19 and the rotating shaft 7, a second annular sealing groove 21 and a clamp spring groove 22 for placing the second sealing ring 84 are sequentially arranged on one side, far away from the impeller 2, of the inner circumferential surface of the shaft sleeve 9, and a clamp spring 23 for limiting the second sealing ring 84 is arranged in the clamp spring groove 22.

Through the cooperation of the first sealing ring 83 and the second sealing ring 84, the lubricating oil around the cylindrical roller bearing 81 can be effectively sealed, the overflow of the lubricating oil is avoided, and meanwhile, the influence on the stable operation of the cylindrical roller bearing 81 caused by the entering of external dust and impurities into the cylindrical roller bearing 81 is also avoided.

The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.

Claims

1. The utility model provides a special fan of broken energy-efficient motor sweeper by force of blade formula, characterized by, including the spiral case that has the air outlet and locate the impeller in the spiral case, the front side of spiral case is equipped with preceding installing port, preceding installing port department is equipped with the air inlet apron, be equipped with the air intake on the air inlet apron, the edge of air intake is equipped with annular air inlet flange, annular air inlet flange includes outer cylinder section, frustum section and interior cylinder section in proper order from outside to inside, the diameter of outer cylinder section is less than the diameter of interior cylinder section, the diameter of the outer end of frustum section is the same with the diameter of outer cylinder section, and the diameter of inner is the same with the diameter of interior cylinder section, the rear side of spiral case is equipped with the back installing port, back installing port department is equipped with the transmission who provides power for the impeller.

2. The special fan for the blade type strong crushing high-efficiency energy-saving sweeper as claimed in claim 1, wherein: the inner end of the inner cylindrical section extends towards the inner part of the volute, and the outer end of the inner cylindrical section is flush with the plane where the air inlet cover plate is located.

3. The special fan for the blade type strong crushing high-efficiency energy-saving sweeper as claimed in claim 2, wherein: the transmission device comprises a rotating shaft, a bearing assembly, a shaft sleeve and a belt pulley, wherein the rotating shaft sequentially comprises an impeller section, a limiting section, a bearing section and a belt pulley section from inside to outside, the impeller is sleeved on the peripheral side of the impeller section, the bearing assembly is sleeved on the peripheral side of the bearing section, the shaft sleeve is sleeved on the peripheral side of the bearing assembly, the belt pulley is sleeved on the peripheral side of the belt pulley section, the diameter of the limiting section is larger than that of the impeller section, a first step is formed between the impeller section and the limiting section, one side of the impeller is abutted against the first step, a first pressing sheet is arranged on the other side of the impeller, the impeller is connected with the rotating shaft through a bolt to realize fixed installation with the impeller section, the diameter of the bearing section is larger than that of the belt pulley section, a second step is formed between the belt pulley section and the bearing section, and one side of the belt pulley is abutted against the second step, the other side is equipped with the second preforming, the belt pulley passes the second preforming through the bolt and is connected the realization with the pivot and the fixed mounting of belt pulley section, the periphery side of axle sleeve outwards extends and forms outer annular bulge, the axle sleeve passes outer annular bulge through the bolt and is connected the realization with the fixed mounting of spiral case with the spiral case is connected.

4. The special fan for the blade type strong crushing high-efficiency energy-saving sweeper as claimed in claim 3, wherein: the bearing assembly comprises two pairs of cylindrical roller bearings and a limiting sleeve, the inner peripheral side of the shaft sleeve is provided with an inner annular protrusion for separating the two pairs of cylindrical roller bearings, one side of the limiting sleeve is abutted with the belt pulley, the other side of the limiting sleeve is abutted with one side of one of the cylindrical roller bearings, the other side of the cylindrical roller bearing is abutted with one side of the inner annular protrusion, the diameter of the limiting section is larger than that of the bearing section, a third step is formed between the bearing section and the limiting section, the other side of the cylindrical roller bearing is abutted with the third step, and the other side of the cylindrical roller bearing is abutted with the other side of the inner annular protrusion.

5. The special fan for the blade type strong crushing high-efficiency energy-saving sweeper as claimed in claim 4, wherein: the bearing assembly further comprises a first sealing ring and a second sealing ring, one side, close to the impeller, of the shaft sleeve is provided with a sealing cover, the sealing cover is fixedly installed on the shaft sleeve through a bolt, the side face of the sealing cover is provided with an annular insertion flange inserted between the shaft sleeve and the rotating shaft, a first annular sealing groove for the first sealing ring to be placed is formed between the annular insertion flange and the rotating shaft, one side, far away from the impeller, of the inner peripheral surface of the shaft sleeve is sequentially provided with a second annular sealing groove and a clamp spring groove for the second sealing ring to be placed, and a clamp spring for limiting the second sealing ring is arranged in the clamp spring groove.