Fan blade structure of high-speed centrifugal motor

Abstract

The utility model relates to a high-speed centrifugal motor fan blade structure, which relates to the technical field of motor fan blades, and comprises a wheel disc and a plurality of blades arranged on the wheel disc, the surface of the wheel disc is provided with mounting grooves for the blades to insert, the center of the wheel disc is integrally provided with a connecting ring, and the connecting ring is connected with the wheel disc. The outer wall of the connecting ring is sleeved with a limiting ring, the limiting ring abuts against the blades, a connecting assembly is arranged between the limiting ring and the connecting ring, a locking groove is formed in the inner wall of the mounting groove, a locking rod is arranged in the locking groove in a sliding mode, and locking holes allowing the locking rod to be inserted and abut against are formed in the ends of the blades. And a locking assembly is arranged on the wheel disc. The fan blade structure has the effects that the number of the blades on the fan blade structure can be conveniently changed, so that the fan blade structure can meet different use scenes, and the applicability of the fan blade structure is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of motor fan blade, especially to high speed centrifugal motor fan blade structure. BACKGROUND

[0002] The motor fan blade is usually composed of a blade and a wheel disc, and is an important component for air circulation in the motor. By continuously circulating air, the temperature of the motor is effectively reduced to ensure the performance and service life of the motor. The centrifugal motor fan blade is widely applicable, has good air circulation effect, relatively simple production process, long service life and safe and reliable operation.

[0003] The fan blade structure designed in the related art mostly includes a wheel disc and a plurality of blades. The wheel disc and a power source are connected to each other, and the blades are fixedly arranged on the surface of the wheel disc. The wheel disc drives the plurality of blades to rotate. The number of blades can change the air volume and loss of the fan blade structure. However, when the fan blade structure is used in different scenes, it is inconvenient to replace the blades of different numbers, and the application range of the fan blade structure is narrow. SUMMARY

[0004] In order to conveniently change the number of blades on the fan blade structure, so that the fan blade structure can meet different use scenes and improve the applicability of the fan blade structure, the application provides a high-speed centrifugal motor fan blade structure.

[0005] The high-speed centrifugal motor fan blade structure provided by the application adopts the following technical scheme:

[0006] The high-speed centrifugal motor fan blade structure includes a wheel disc and blades arranged on the wheel disc. The blades are arranged in a plurality of numbers. The surface of the wheel disc is provided with mounting grooves for inserting the blades. The blades and the mounting grooves are mutually adapted. A connecting ring is integrally arranged at the center of the wheel disc. A limiting ring is sleeved on the outer wall of the connecting ring. The limiting ring abuts against the blades. A connecting assembly is arranged between the limiting ring and the connecting ring. The connecting assembly is used for fixing the limiting ring on the side wall of the connecting ring. A locking groove is arranged on the inner wall of the mounting groove. A locking rod is slidably arranged in the locking groove. A locking hole is arranged on the end of the blade for inserting the locking rod and abutting against the locking rod. A locking assembly is arranged on the wheel disc. The locking assembly is used for driving the plurality of locking rods to simultaneously slide in the locking groove.

[0007] By adopting the above technical scheme, when connecting the blade and the wheel disc, the blade is inserted into the mounting groove, the end wall of the blade is matched with the outer wall of the connecting ring, then the limiting ring is sleeved on the connecting ring, and the limiting ring is fixed on the side wall of the connecting ring through the connecting assembly, and one end of the limiting ring is limited to the blade; then the locking assembly is operated to drive the locking rod to slide in the locking groove, the locking rod is inserted into the locking hole, and the other end of the locking rod is limited to the blade, so that the blade is fixed in the mounting groove; the connecting assembly and the locking assembly are used to realize the detachable connection between the blade and the mounting groove, the number of blades is changed according to the actual use scene, and then the factors such as the air volume, air pressure, air supply distance, noise and loss of the fan blade are changed, so that the fan blade structure can meet different use scenes when being reused, and the applicability of the fan blade structure is improved.

[0008] Preferably, the connecting assembly comprises a magnetic block and an adsorption block, the magnetic block is fixedly arranged on the inner wall of the limiting ring, the magnetic block is symmetrically arranged in two, the top end of the connecting ring is provided with a connecting groove for inserting and sliding the magnetic block, the inner wall of the connecting groove is provided with a limiting groove for inserting and sliding the magnetic block, the length direction of the connecting groove is arranged along the height direction of the connecting ring, the length direction of the limiting groove is arranged along the circumferential direction of the connecting ring, the adsorption block is fixedly arranged on the bottom wall of the limiting groove, and the adsorption block and the magnetic block are magnetically attracted.

[0009] By adopting the above technical scheme, after the blade is inserted into the mounting groove, the limiting ring is sleeved on the connecting ring, and the magnetic block is inserted into the connecting groove, the limiting ring is slid, after the magnetic block and the limiting groove are flush with each other, the magnetic block is inserted into the limiting groove by rotating the limiting ring, the magnetic block and the adsorption block on the bottom wall of the limiting groove are magnetically attracted, the magnetic block is fixed in the limiting groove, and the limiting ring is quickly fixed on the outer wall of the connecting ring, and the limiting block can quickly abut against one end of the blade.

[0010] Preferably, the locking assembly comprises a worm wheel, a worm and a power assisting disc, the worm wheel is rotationally arranged on the side of the wheel disc away from the blade, the worm wheel and the wheel disc are coaxially arranged, the locking rod and the worm wheel are connected with each other, the worm penetrates through the wheel disc and is rotationally connected with the wheel disc, the worm and the worm wheel are meshed with each other, and the power assisting disc is fixedly arranged on the end wall of the worm.

[0011] By adopting the technical scheme, after the blade is inserted into the mounting groove, the power disc is rotated to drive the worm to rotate on the wheel disc, the worm abuts against the worm wheel to drive the worm wheel to rotate, the worm wheel drives the plurality of locking rods to slide in the locking grooves at the same time, the locking rods are inserted into the locking holes on the blade, and the locking rods limit one end of the blade away from the limiting ring, when the blade needs to be disassembled, the power disc is reversely rotated to drive the locking rods to be separated from the locking holes, the control is convenient and fast, the cost is low, the stability of the locking rods is good, and the worm wheel is not easy to rotate by itself.

[0012] As preferred, the locking assembly further comprises a pressing nut, the pressing nut is threadedly connected at one end of the worm away from the power disc, and the pressing nut abuts against the end wall of the wheel disc.

[0013] By adopting the technical scheme, after the blade is installed, the pressing nut can be rotated to abut against the end wall of the wheel disc, the stability of the worm is improved, and the self-rotation of the worm is reduced.

[0014] As preferred, the end wall of the locking rod is provided with an arc surface.

[0015] By adopting the technical scheme, the locking rod is guided to be inserted into the locking hole.

[0016] As preferred, the center of the wheel disc is provided with a convex surface, the blade is provided with a close surface parallel to the convex surface, the surface of the wheel disc is obliquely provided with a first flow guide surface connected with the convex surface, and the surface of the blade is obliquely provided with a second flow guide surface connected with the close surface.

[0017] By adopting the technical scheme, the convex surface makes the center of the fan blade protrude, the center of the fan blade is closer to the rotor during use, the close surface cuts more air flow when cutting air, so that the hot air around the rotor can be more effectively sucked away, heat dissipation is facilitated, the first flow guide surface and the second flow guide surface can guide the air flow on the surface of the wheel disc, reduce the resistance, and further reduce the damage of the fan blade during use.

[0018] As preferred, one side of the wheel disc away from the convex surface is provided with a concave groove.

[0019] By adopting the technical scheme, the concave groove saves the axial space size for installing the rotor bearing, so as to effectively shorten the axial size of the fan blade, and save the production cost of the wheel disc.

[0020] As preferred, a plurality of reinforcing ribs are symmetrically and fixedly arranged on the inner wall of the concave groove.

[0021] By adopting the technical scheme, the overall strength of the wheel disc is improved.

[0022] To sum up, the present application includes at least one of the following beneficial technical effects:

[0023] 1. By setting the wheel disc, blade, mounting slot, connecting ring, limiting ring, connecting assembly, locking groove, locking rod, locking hole and locking assembly, when connecting the blade and the wheel disc, the blade is inserted into the mounting slot, then the limiting ring is sleeved on the connecting ring, the limiting ring abuts against one end of the blade, the locking assembly drives the locking rod to slide in the locking groove, the locking rod abuts against the other end of the blade, thereby fixing the blade in the mounting slot, the connecting assembly and the locking assembly are used to realize the detachable connection between the blade and the mounting slot, the number of blades is changed according to the actual use scene, and then the air volume, air pressure, air supply distance, noise, loss and other factors of the fan blade are changed, so that the fan blade structure can meet different use scenes when being reused, and the applicability of the fan blade structure is improved.

[0024] 2. By setting the convex surface, the approach surface, the first guide surface and the second guide surface, the convex surface makes the central part of the fan blade protrude, the fan blade is closer to the rotor at the center during use, the approach surface cuts more air flow when cutting air, so that the hot air around the rotor can be more effectively sucked away, which is beneficial to heat dissipation; and the first guide surface and the second guide surface can guide the airflow flowing on the surface of the wheel disc, reduce the resistance, and then reduce the damage generated by the fan blade during use.

[0025] 3. By setting the concave groove and the reinforcing rib, the concave groove saves the axial space size for installing the rotor bearing, so as to effectively shorten the axial size of the fan blade, and save the production cost of the wheel disc, and the reinforcing rib is beneficial to enhancing the overall strength of the wheel disc. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural schematic diagram of a high-speed centrifugal motor fan blade structure provided by an embodiment of the present application.

[0027] Figure 2 is an exploded schematic diagram of a high-speed centrifugal motor fan blade structure provided by an embodiment of the present application.

[0028] Figure 3 is a partial schematic diagram of a high-speed centrifugal motor fan blade structure provided by an embodiment of the present application.

[0029] Figure 4 is a bottom schematic diagram of a high-speed centrifugal motor fan blade structure provided by an embodiment of the present application.

[0030] Explanation of reference signs: 1, wheel disc; 11, blade; 2, mounting groove; 21, locking groove; 22, locking rod; 23, locking hole; 3, connecting ring; 31, limiting ring; 4, connecting assembly; 41, magnetic block; 42, adsorption block; 5, locking assembly; 51, worm gear; 52, worm; 53, booster disc; 54, abutting nut; 61, connecting groove; 62, limiting groove; 7, convex surface; 71, approach surface; 81, first flow guide surface; 82, second flow guide surface; 9, concave groove; 91, reinforcing rib. DETAILED DESCRIPTION

[0031] The following will be described in detail with reference to the accompanying drawings. Figures 1-4 The application is further described in detail.

[0032] The application discloses a high-speed centrifugal motor blade structure. Referring to the drawings Figure 1 and Figure 2 , which comprises a wheel disc 1 and a plurality of blades 11 arranged on the wheel disc 1. The wheel disc 1 is circularly arranged, and the length direction of the blades 11 is arranged along the radial direction of the wheel disc 1. The surface of the wheel disc 1 is provided with a mounting groove 2 for inserting the blades 11. The blades 11 and the mounting groove 2 are mutually adapted. The top end of the blade 11 protrudes from the mounting groove 2. The center of the wheel disc 1 is integrally provided with a connecting ring 3. The side wall of the connecting ring 3 is connected to one end of the mounting groove 2 close to the center of the wheel disc 1.

[0033] Referring to the drawings Figures 1 to 3 , a limiting ring 31 is sleeved on the outer wall of the connecting ring 3. The limiting ring 31 and the connecting ring 3 are coaxially arranged. The inner wall of the limiting ring 31 is in close contact with the inner wall of the connecting ring 3. The limiting ring 31 abuts against the plurality of blades 11. The connecting assembly 4 is arranged between the limiting ring 31 and the connecting ring 3. The inner wall of the mounting groove 2 is provided with a locking groove 21. The length direction of the locking groove 21 is arranged along the circumferential direction of the wheel disc 1. The locking groove 21 is slidably provided with a locking rod 22. The locking rod 22 and the locking groove 21 are mutually adapted. The end wall of the locking rod 22 is provided with an arc surface. The end of the blade 11 is provided with a locking hole 23 for inserting the locking rod 22 and abutting. The wheel disc 1 is provided with a locking assembly 5. When the blades 11 and the wheel disc 1 are mounted, the blades 11 are inserted into the mounting groove 2. One end of the blade 11 is in close contact with the outer wall of the connecting ring 3. Then the limiting ring 31 is sleeved on the connecting ring 3. The limiting ring 31 is fixed on the side wall of the connecting ring 3 through the connecting assembly 4. The limiting ring 31 abuts against one end of the blade 11. Then the locking assembly 5 is operated to drive the locking rod 22 to slide in the locking groove 21. The locking rod 22 is inserted into the locking hole 23. The locking rod 22 abuts against the other end of the blade 11 to limit. Thus, the blade 11 is fixed in the mounting groove 2. The connecting assembly 4 and the locking assembly 5 realize the detachable connection between the blade 11 and the mounting groove 2.

[0034] Referring to the drawings Figure 2The connecting assembly 4 comprises a magnetic block 41 and an adsorption block 42. The magnetic block 41 is fixedly arranged on the inner wall of the limiting ring 31. The magnetic block 41 is made of magnet. The magnetic block 41 is symmetrically arranged in two. The top end of the connecting ring 3 is provided with a connecting groove 61 for inserting and sliding the magnetic block 41. The length direction of the connecting groove 61 is arranged along the height direction of the connecting ring 3. The inner wall of the connecting groove 61 is provided with a limiting groove 62 for inserting and sliding the magnetic block 41. The length direction of the limiting groove 62 is arranged along the circumferential direction of the connecting ring 3. The adsorption block 42 is fixedly arranged on the bottom wall of the limiting groove 62 by adhesion. The adsorption block 42 is made of iron block. The adsorption block 42 is magnetically attracted to the magnetic block 41. After the blade 11 is inserted into the mounting groove 2, the limiting ring 31 is sleeved on the connecting ring 3. The magnetic block 41 is inserted into the connecting groove 61. The limiting ring 31 is slid. After the magnetic block 41 is flush with the limiting groove 62, the magnetic block 41 is inserted into the limiting groove 62 by rotating the limiting ring 31. The magnetic block 41 is attracted to the adsorption block 42 on the bottom wall of the limiting groove 62. The magnetic block 41 is fixed in the limiting groove 62. At this time, the limiting groove 62 limits the magnetic block 41. Therefore, the limiting ring 31 is quickly fixed on the outer wall of the connecting ring 3. The limiting block can quickly abut against one end of the blade 11.

[0035] With reference to Figure 3 and Figure 4 The locking assembly 5 comprises a worm wheel 51, a worm 52 and a power assisting disc 53. The worm wheel 51 is rotationally arranged on one side of the wheel disc 1 away from the blade 11. The worm wheel 51 is coaxially arranged between the wheel disc 1. The locking rod 22 is fixedly connected between the worm wheel 51. The worm 52 penetrates through the wheel disc 1 and is rotationally connected between the wheel disc 1. The worm 52 is meshed with the worm wheel 51. The power assisting disc 53 is fixedly arranged on one end of the worm 52. The abutting nut 54 is threadedly connected on one end of the worm 52 away from the power assisting disc 53. The abutting nut 54 is abutted against the end wall of the wheel disc 1. After the blade 11 is inserted into the mounting groove 2, the power assisting disc 53 is rotated to drive the worm 52 to rotate on the wheel disc 1. The worm 52 is abutted against the worm wheel 51 to drive the worm wheel 51 to rotate. The worm wheel 51 drives the plurality of locking rods 22 to simultaneously slide in the locking slot 21. The locking rod 22 is inserted into the locking hole 23 on the blade 11. The locking rod 22 limits one end of the blade 11 away from the limiting ring 31. Then, the abutting nut 54 is abutted against the end wall of the wheel disc 1 to fix the worm 52 and improve the stability of the worm 52. When the blade 11 is to be disassembled, the power assisting disc 53 is reversely rotated to drive the locking rod 22 to be separated from the locking hole 23. The control is convenient and fast. The cost is low. The worm wheel 51 is not easy to rotate due to the limitation of the worm 52. The stability of the locking rod 22 is good.

[0036] With reference to Figure 1The center of the wheel disc 1 is provided with a convex surface 7, and the blade 11 is provided with an approach surface 71 which is parallel to the convex surface 7. The convex surface 7 makes the center of the fan blade protrude, and the center of the fan blade is closer to the rotor during use. The approach surface 71 can cut more air flow when cutting the air, so that the hot air around the rotor can be more effectively sucked away, thereby facilitating heat dissipation. The surface of the wheel disc 1 is inclined and provided with a first flow guide surface 81 which is connected with the convex surface 7. The surface of the blade 11 is inclined and provided with a second flow guide surface 82 which is connected with the approach surface 71. The first flow guide surface 81 and the second flow guide surface 82 can guide the air flow on the surface of the wheel disc 1, reduce the resistance, and further reduce the damage caused by the fan blade during use.

[0037] Referring to Figure 4 The wheel disc 1 is provided with a concave groove 9 away from the direction of the convex surface 7. The concave groove 9 saves the axial space size for installing the rotor bearing, so as to effectively shorten the axial size of the fan blade, and save the production cost of the wheel disc 1. A plurality of reinforcing ribs 91 are symmetrically fixed on the inner wall of the concave groove 9 by welding. The reinforcing ribs 91 enhance the overall strength of the wheel disc 1.

[0038] The implementation principle of the high-speed centrifugal motor fan blade structure of the embodiment is as follows: when the blade 11 and the wheel disc 1 are connected and installed, the blade 11 is inserted into the installation groove 2, and the blade 11 and the inner wall of the installation groove 2 are mutually attached. Then, the limiting ring 31 is sleeved on the connecting ring 3, and the limiting ring 31 is fixed on the side wall of the connecting ring 3 through the connecting assembly 4, and one end of the blade 11 is limited by the limiting ring 31. Then, the locking assembly 5 is operated to drive the locking rod 22 to slide in the locking groove 21, and the locking rod 22 is inserted into the locking hole 23, and the other end of the blade 11 is limited by the locking rod 22, so as to fix the blade 11 in the installation groove 2. The connecting assembly 4 and the locking assembly 5 realize the detachable connection between the blade 11 and the installation groove 2, so that the number of blades 11 can be changed according to the actual use scene, and the air volume, air pressure, air supply distance, noise, loss and other factors of the fan blade can be changed, so that the fan blade structure can meet different use scenes when being reused, and the applicability of the fan blade structure is improved.

[0039] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, any equivalent changes made on the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A high-speed centrifugal motor blade structure, comprising a wheel disc (1) and blades (11) arranged on the wheel disc (1), wherein a plurality of blades (11) are arranged, and characterized in that: The surface of the wheel disc (1) is provided with a mounting groove (2) for inserting the blade (11), the blade (11) and the mounting groove (2) are matched with each other; the center of the wheel disc (1) is integrally provided with a connecting ring (3), the outer wall of the connecting ring (3) is sleeved with a limiting ring (31), the limiting ring (31) abuts against the blade (11), a connecting assembly (4) is arranged between the limiting ring (31) and the connecting ring (3), the connecting assembly (4) is used for fixing the limiting ring (31) on the side wall of the connecting ring (3); the inner wall of the mounting groove (2) is provided with a locking groove (21), the locking groove (21) is slidably provided with a locking rod (22), the end of the blade (11) is provided with a locking hole (23) for inserting the locking rod (22) and abutting, the wheel disc (1) is provided with a locking assembly (5), the locking assembly (5) is used for driving a plurality of locking rods (22) to slide in the locking groove (21) at the same time.

2. The high-speed centrifugal motor blade structure according to claim 1, characterized in that: The connecting assembly (4) comprises a magnetic block (41) and an adsorption block (42), the magnetic block (41) is fixedly arranged on the inner wall of the limiting ring (31), the magnetic block (41) is symmetrically provided with two, the top end of the connecting ring (3) is provided with a connecting groove (61) for inserting and sliding the magnetic block (41), the inner wall of the connecting groove (61) is provided with a limiting groove (62) for inserting and sliding the magnetic block (41), the length direction of the connecting groove (61) is arranged along the height direction of the connecting ring (3), the length direction of the limiting groove (62) is arranged along the circumferential direction of the connecting ring (3), the adsorption block (42) is fixedly arranged on the bottom wall of the limiting groove (62), and the adsorption block (42) and the magnetic piece are magnetically attracted.

3. The high-speed centrifugal motor blade structure according to claim 1, characterized in that: The locking assembly (5) comprises a worm wheel (51), a worm (52) and a booster disc (53), the worm wheel (51) is rotatably arranged on the side of the wheel disc (1) away from the blade (11), the worm wheel (51) and the wheel disc (1) are coaxially arranged, the locking rod (22) and the worm wheel (51) are connected with each other, the worm (52) penetrates through the wheel disc (1) and is rotatably connected with the wheel disc (1), the worm (52) and the worm wheel (51) are meshed with each other, and the booster disc (53) is fixedly arranged on the end wall of the worm (52).

4. The high-speed centrifugal motor blade structure according to claim 3, characterized in that: The locking assembly (5) further comprises a pressing nut (54), the pressing nut (54) is threadedly connected to one end of the worm (52) away from the booster disc (53), and the pressing nut (54) abuts against the end wall of the wheel disc (1).

5. The high-speed centrifugal motor impeller structure according to claim 1, characterized in that: The end wall of the locking rod (22) is provided with an arc surface.

6. The high-speed centrifugal motor impeller structure according to claim 1, characterized in that: The center of the wheel disc (1) is provided with a convex surface (7), the blade (11) is provided with a close surface (71) parallel to the convex surface (7), and the surface of the wheel disc (1) is obliquely provided with a first flow guide surface (81) connected with the convex surface (7); the surface of the blade (11) is obliquely provided with a second flow guide surface (82) connected with the close surface (71).

7. The high-speed centrifugal motor blade structure according to claim 6, characterized in that: The wheel disc (1) is provided with a concave groove (9) on the side away from the convex surface (7).

8. The high-speed centrifugal motor blade structure according to claim 7, characterized in that: Symmetrically, a plurality of reinforcing ribs (91) are fixed on the inner wall of the concave groove (9).

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