A centrifugal fan with a shock-absorbing base

Abstract

The present invention discloses a centrifugal fan with a shock-absorbing base, comprising a first base frame, a casing provided on a side wall at the top of the first base frame, blades provided in the casing wall, a fixing plate provided on a side wall of the casing, a motor provided on the other side wall at the top of the first base frame, the blades and the motor shaft being connected by a belt, a second base frame provided on the bottom wall of the first base frame, and a plurality of supporting mechanisms provided between the top wall of the second base frame and the bottom wall of the first base frame. The centrifugal fan with a shock-absorbing base described in the present invention relates to the technical field of centrifugal fan equipment. By providing the first support column and the second support column as well as the first mounting seat and the second mounting seat, it is convenient to perform secondary buffering and offset the lateral vibration displacement force on the first base frame. By providing the connecting mechanism, it is convenient to fix the mounting block on the second base frame, and at the same time, fix the second base frame on the anchor bolt on the ground.

Description

Technical Field

[0001] The present invention relates to the technical field of centrifugal fan equipment, and in particular to a centrifugal fan with a shock-absorbing base. Background Art

[0002] A centrifugal fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. Centrifugal fans are widely used in ventilation, dust removal and cooling in factories, mines, tunnels, cooling towers, vehicles, ships and buildings.

[0003] However, most centrifugal fans are fixed on anchor bolts on the ground through a separate base. Therefore, during the long-term operation of the centrifugal fan, if the vibration generated during the operation of the centrifugal fan is not eliminated in time, it will continue to exert pressure on the fixed anchor bolts on the ground, which may easily cause the anchor bolts to vibrate in the ground base and cause damage to the base. At the same time, the vibration directly acts on the ground and produces a large vibration noise. Summary of the Invention

[0004] The object of the present invention is to provide a centrifugal fan with a shock-absorbing base, which can effectively solve the problems in the background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] The cam is secured to the chassis and has a bottom wall mounted on the chassis cam, the top wall of the cam being secured to the chassis by a spring, the bottom wall of the cam being secured to the chassis by a spring.

[0007] Preferably, installation openings are provided in the front end and rear end walls of the second chassis.

[0008] Preferably, one side wall of the two sliders is fixedly mounted on a side wall of the mounting block by welding, a first screw groove is provided in the bottom wall of the slider, and a first mounting groove is provided in the wall of the mounting block.

[0009] Preferably, a second mounting groove is provided in the wall on the opposite side of the first mounting seat and the second mounting seat, a sliding groove is provided in the bottom wall of the first mounting seat and the second mounting seat, a positioning block is fixedly installed on one side wall of the first mounting seat and the second mounting seat, and the first mounting seat and the second mounting seat are both slidably installed on one side of the first mounting groove.

[0010] Preferably, the two side walls of the first connecting plate are respectively inserted and installed in the sliding grooves of the first mounting seat and the bottom wall of the second mounting seat, and the first mounting seat and the second mounting seat are fixedly installed with a first compression spring on the wall located at the position of the positioning block on one side, and the other side wall of the first compression spring is inserted and installed in the groove of the one side wall in the first mounting groove, and the bottom wall of the first compression spring is also embedded and installed in the groove of the one side wall at the top of the first connecting plate.

[0011] Preferably, a rotating shaft is fixedly installed on the lower wall bodies at the front and rear ends of the first support column and the second support column, and the first support column is rotatably installed in the second mounting groove of the side wall body of the first mounting seat through the rotating shaft of the lower wall body, and the second support column is rotatably installed in the second mounting groove of the side wall body of the second mounting seat through the rotating shaft on the lower wall body.

[0012] Preferably, a second connecting plate is provided on the front and rear end walls on one side of the first support column, the first support column and the two second connecting plates are cast as one piece, and the second support column is provided with a third connecting plate on the front and rear end walls close to the first support column, the two third connecting plates are cast as one piece, and a limiting shaft is provided on the wall on the opposite side of the two third connecting plates, the limiting shaft is fixedly installed on the third connecting plate wall by welding, and the second connecting plate is rotatably installed on the limiting shaft on one side of the third connecting plate through the through hole of one side wall.

[0013] Preferably, a second screw groove is provided in the top wall of the first support column and the second support column, and a rubber pad is provided on the top wall of the first support column and the second support column, and the rubber pad is fixedly installed on the top wall of the first support column or the second support column by fixing screws.

[0014] Preferably, the bottom wall of the fixing column is fixedly mounted on the wall at the top center position of the first connecting plate by welding, a telescopic slot is opened in the wall of the fixing column, a telescopic rod is provided in the telescopic slot, a limit block is provided on the bottom wall of the telescopic rod, the limit block is fixedly mounted on the bottom wall of the telescopic rod by welding, the telescopic rod is inserted into the telescopic slot through the limit block, a third screw groove is opened in the top wall of the telescopic rod, a first screw is rotatably mounted in the third screw groove, a knob block is provided on the top wall of the first screw, and the bottom wall of the knob block is fixedly mounted on the top wall of the first screw by welding.

[0015] Preferably, a second screw is provided on the wall body at the top center position of the first adjusting wheel, and the second screw is fixedly mounted on the top wall body of the first adjusting wheel by welding, and the second screw is rotatably mounted in the first screw groove of the bottom wall body of the slider, and a plurality of limit rods are provided on the wall body at the bottom outer position of the first adjusting wheel, and the limit rods are fixedly mounted on the bottom wall body of the first adjusting wheel by welding, and the walls below the limit rods are fixedly connected by a connecting ring, and a plurality of through-holes are opened in the wall body of the second adjusting wheel, and the second adjusting wheel is inserted into the corresponding limit rods through the through-holes, and a fixing rod is fixedly mounted on the bottom wall body of the second adjusting wheel, and a fourth screw groove is opened in the fixing rod and the wall body at the center position of the second adjusting wheel.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The centrifugal fan with a shock-absorbing base described in the present invention:

[0018] 1. The first support column, the second support column, the first mounting seat, and the second mounting seat are provided to facilitate secondary buffering of the first chassis and offsetting of lateral vibration displacement force.

[0019] 2. The arrangement of the fixed column and the second compression spring facilitates support and shock absorption for the first chassis.

[0020] 3. By setting the connecting mechanism, it is convenient to fix the mounting block on the second chassis, and at the same time, fix the second chassis on the anchor bolts on the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the installation structure of the first base frame and the second base frame of the present invention;

[0023] Figure 3 This is a disassembled diagram of the support mechanism structure of the present invention;

[0024] Figure 4 This is a disassembled diagram of the first support column and the second support column structure of the present invention;

[0025] Figure 5 This is a disassembled diagram of the fixed column structure of the present invention;

[0026] Figure 6 This is a disassembled diagram of the connecting mechanism structure of the present invention.

[0027] In the figure: 1. first chassis; 2. housing; 3. fixing plate; 4. fan blade; 5. motor; 6. belt; 7. second chassis; 8. support mechanism; 9. mounting block; 10. first mounting seat; 11. second mounting seat; 12. first support column; 13. second support column; 14. first connecting plate; 15. connecting mechanism; 16. first adjusting wheel; 17. second adjusting wheel; 18. mounting opening; 19. slider; 20. first screw groove; 21. first mounting groove; 22. second mounting groove; 23. positioning block; 24. Slide groove; 25, waste; 26, first compression spring; 27, rotating shaft; 28, second connecting plate; 29, third connecting plate; 30, limiting shaft; 31, second screw groove; 32, rubber pad; 33, fixing screw; 34, fixing column; 35, telescopic groove; 36, telescopic rod; 37, limiting block; 38, third screw groove; 39, first screw rod; 40, knob block; 41, second screw rod; 42, limiting rod; 43, connecting ring; 44, through hole; 45, fixing rod; 46, fourth screw groove; 47, second compression spring. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0029] like Figures 1-6 As shown, the present invention provides a centrifugal fan with a shock-absorbing base, comprising a first base frame 1, a casing 2 is provided on a side wall of the top of the first base frame 1, a fan blade 4 is provided in the wall of the casing 2, a fixing plate 3 is provided on one side wall of the casing 2, a motor 5 is provided on the other side wall of the top of the first base frame 1, the fan blade 4 and the motor 5 shaft are connected by a belt 6, a second base frame 7 is provided on the bottom wall of the first base frame 1, a plurality of supporting mechanisms 8 are provided between the top wall of the second base frame 7 and the bottom wall of the first base frame 1, the supporting mechanism 8 includes a mounting block 9, a first mounting seat 10 and a second mounting seat 11 are symmetrically provided in the mounting block 9, a first supporting column 12 is provided in the wall of the first mounting seat 10, a second supporting column 13 is provided in the wall of the second mounting seat 11, a first connecting plate 14 is provided between the wall below the first mounting seat 10 and the second mounting seat 11, sliders 19 are provided on the walls on both sides of the mounting block 9, a connecting mechanism 15 is provided on the bottom wall of the slider 19, and the connecting mechanism 15 includes a first adjusting wheel 16 and a second adjusting wheel 17.

[0030] In this embodiment, mounting openings 18 are formed in the front and rear walls of the second chassis 7 .

[0031] In this embodiment, one side wall of the two sliders 19 is fixedly mounted on the one side wall of the mounting block 9 by welding. A first screw groove 20 is opened in the bottom wall of the slider 19, and a first mounting groove 21 is opened in the wall of the mounting block 9.

[0032] In this embodiment, a second mounting groove 22 is provided in the wall on the opposite side of the first mounting seat 10 and the second mounting seat 11, a sliding groove 24 is provided in the bottom wall of the first mounting seat 10 and the second mounting seat 11, a positioning block 23 is fixedly installed on the side wall of the first mounting seat 10 and the side wall of the second mounting seat 11, and the first mounting seat 10 and the second mounting seat 11 are both slidably installed on one side of the first mounting groove 21.

[0033] In this embodiment, the two side walls of the first connecting plate 14 are respectively inserted and installed in the sliding grooves 24 of the bottom wall bodies of the first mounting seat 10 and the second mounting seat 11, and the first mounting seat 10 and the second mounting seat 11 are fixedly installed with a first compression spring 26 on the wall body located at the position of the one side positioning block 23, and the other side wall body of the first compression spring 26 is inserted and installed in the groove of the one side wall body in the first mounting groove 21, and the bottom wall body of the first compression spring 26 is also embedded and installed in the groove of the one side wall body at the top of the first connecting plate 14.

[0034] In this embodiment, a rotating shaft 27 is fixedly installed on the lower wall of the front and rear ends of the first support column 12 and the second support column 13. The first support column 12 is rotatably installed in the second mounting groove 22 of the side wall of the first mounting seat 10 through the rotating shaft 27 on the lower wall, and the second support column 13 is rotatably installed in the second mounting groove 22 of the side wall of the second mounting seat 11 through the rotating shaft 27 on the lower wall.

[0035] In this embodiment, a second connecting plate 28 is provided on the front and rear end walls on one side of the first support column 12, and the first support column 12 and the two second connecting plates 28 are cast as one piece. The second support column 13 is provided with a third connecting plate 29 on the front and rear end walls on the side close to the first support column 12, and the two third connecting plates 29 are cast as one piece with the second support column 13. A limiting shaft 30 is provided on the wall on the opposite side of the two third connecting plates 29, and the limiting shaft 30 is fixedly installed on the wall of the third connecting plate 29 by welding, and the second connecting plate 28 is rotatably installed on the limiting shaft 30 on one side of the third connecting plate 29 through the through hole of one side wall.

[0036] In this embodiment, a second screw groove 31 is opened in the top wall of the first support column 12 and the second support column 13, and a rubber pad 32 is provided on the top wall of the first support column 12 and the second support column 13. The rubber pad 32 is fixedly installed on the top wall of the first support column 12 or the second support column 13 by a fixing screw 33.

[0037] In this embodiment, the bottom wall of the fixing column 34 is fixedly mounted on the wall at the top center position of the first connecting plate 14 by welding, and a telescopic groove 35 is opened in the wall of the fixing column 34, and a telescopic rod 36 is provided in the telescopic groove 35. A limit block 37 is provided on the bottom wall of the telescopic rod 36, and the limit block 37 is fixedly mounted on the bottom wall of the telescopic rod 36 by welding. The telescopic rod 36 is inserted into the telescopic groove 35 through the limit block 37, and a third screw groove 38 is opened in the top wall of the telescopic rod 36, and a first screw rod 39 is rotatably mounted in the third screw groove 38. A knob block 40 is provided on the top wall of the first screw 39, and the bottom wall of the knob block 40 is fixedly mounted on the top wall of the first screw 39 by welding.

[0038] In this embodiment, a second screw 41 is provided on the wall at the top center position of the first adjusting wheel 16, and the second screw 41 is fixedly mounted on the top wall of the first adjusting wheel 16 by welding. The second screw 41 is rotatably mounted in the first screw groove 20 of the bottom wall of the slider 19, and a plurality of limiting rods 42 are provided on the wall at the bottom outer position of the first adjusting wheel 16, and the limiting rods 42 are fixedly mounted on the bottom wall of the first adjusting wheel 16 by welding. The walls below the limiting rods 42 are fixedly connected by a connecting ring 43, and a plurality of through holes 44 are opened in the wall of the second adjusting wheel 17. The second adjusting wheel 17 is inserted and mounted on the corresponding limiting rods 42 through the through holes 44. A fixing rod 45 is fixedly mounted on the bottom wall of the second adjusting wheel 17, and a fourth screw groove 46 is opened in the fixing rod 45 and the wall at the center position of the second adjusting wheel 17.

[0039] It should be noted that the present invention is a centrifugal fan with a shock-absorbing base. When in use, the second base frame 7 is first placed on the base on the ground, and the mounting openings 18 below the front and rear ends of the bottom of the second base frame 7 are inserted and installed on the anchor bolts of the base. Subsequently, the mounting block 9 is slid and adjusted in the mounting opening 18 at the top of the second base frame 7 through the sliders 19 on the two side walls, so that the slider 19 drives the connecting mechanism 15 to be located above the anchor bolt of the base through the second screw 41 and the first adjusting wheel 16. Subsequently, the first adjusting wheel 16 is rotated to adjust the second screw 41 and the first adjusting wheel 16. An adjusting wheel 16 drives the second screw rod 41 to be gradually screwed into the first screw groove 20 of the bottom wall of the slider 19. At the same time, the first adjusting wheel 16 drives the second adjusting wheel 17 to rotate through the limiting rod 42. Since the fourth screw groove 46 on the inner wall of the fixing rod 45 is in the opposite direction to the thread of the outer wall of the second screw rod 41, when the limiting rod 42 drives the second adjusting wheel 17 to rotate, the second adjusting wheel 17 drives the fixing rod 45 through the fourth screw groove 46 on the inner wall to be gradually screwed into the anchor bolt of the base, thereby synchronously fixing the mounting block 9 to the second base frame 7, and the second base frame 7 is fixed to the base.

[0040] In addition, the first base frame 1 is placed on the rubber pad 32 of the top wall of the first support column 12 and the second support column 13, and is supported synchronously by the second compression spring 47. Subsequently, the first screw 39 is passed through the through-hole of the bottom side wall of the first base frame 1 and is rotatably installed in the ID third screw groove 38 of the telescopic rod 36 wall, thereby fixing the first base frame 1 on several first support columns 12 and second support columns 13. When the first base frame 1 is vibrated by the casing 2 and the motor 5, the second compression spring 47 plays a preliminary buffering and shock absorption role, and the first support column 12 and the second support column 13 and the two first compression springs 26 further buffer the downward force generated by the vibration of the first base frame 1, thereby ensuring the stable installation of the first base frame 1, and buffering and reducing the vibration generated by the casing 2 and the motor 5 to prevent it from directly acting on the base on the ground.

[0041] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A centrifugal fan with a shock-absorbing base, comprising a first base frame (1), a housing (2) provided on a side wall of a top of the first base frame (1), a fan blade (4) provided in the wall of the housing (2), a fixing plate (3) provided on a side wall of the housing (2), a motor (5) provided on the other side wall of the top of the first base frame (1), the fan blade (4) and the shaft of the motor (5) being connected via a belt (6), characterized in that: A second base frame (7) is provided on the bottom wall of the first base frame (1), and a plurality of supporting mechanisms (8) are provided between the top wall of the second base frame (7) and the bottom wall of the first base frame (1), wherein the supporting mechanism (8) comprises a mounting block (9), wherein a first mounting seat (10) and a second mounting seat (11) are symmetrically provided in the mounting block (9), a first supporting column (12) is provided in the wall of the first mounting seat (10), and a second supporting column (13) is provided in the wall of the second mounting seat (11), and a first connecting plate (14) is provided between the lower wall of the first mounting seat (10) and the second mounting seat (11), and sliders (19) are provided on both side walls of the mounting block (9), and a connecting mechanism (15) is provided on the bottom wall of the slider (19), and the connecting mechanism (15) comprises a first adjusting wheel (16) and a second adjusting wheel (17), and a second adjusting wheel (17) is provided on the wall at the top center position of the first adjusting wheel (16). The screw (41) is fixedly mounted on the top wall of the first adjusting wheel (16) by welding, and the second screw (41) is rotatably mounted in the first screw groove (20) of the bottom wall of the slider (19). A plurality of limiting rods (42) are provided on the wall at the outer position of the bottom of the first adjusting wheel (16). The limiting rods (42) are fixedly mounted on the bottom wall of the first adjusting wheel (16) by welding, and the walls below the limiting rods (42) are fixedly connected by a connecting ring (43). A plurality of through holes (44) are opened in the wall of the second adjusting wheel (17), and the second adjusting wheel (17) is inserted and mounted on the corresponding limiting rods (42) through the through holes (44). A fixing rod (45) is fixedly mounted on the bottom wall of the second adjusting wheel (17), and a fourth screw groove (46) is opened in the fixing rod (45) and the wall at the center position of the second adjusting wheel (17).

2. A centrifugal fan with a shock-absorbing base according to claim 1, characterized in that: The front end and rear end walls of the second base frame (7) are both provided with mounting openings (18).

3. The centrifugal fan with a shock-absorbing base according to claim 2, characterized in that: The side walls of the two sliders (19) are fixedly mounted on the side wall of the mounting block (9) by welding, a first screw groove (20) is provided in the bottom wall of the slider (19), and a first mounting groove (21) is provided in the wall of the mounting block (9).

4. The centrifugal fan with a shock-absorbing base according to claim 3, characterized in that: A second mounting groove (22) is provided in the wall of the opposite side of the first mounting seat (10) and the second mounting seat (11), a sliding groove (24) is provided in the bottom wall of the first mounting seat (10) and the second mounting seat (11), a positioning block (23) is fixedly installed on the side wall of the first mounting seat (10) and the side wall of the second mounting seat (11), and the first mounting seat (10) and the second mounting seat (11) are both slidably installed on one side of the first mounting groove (21).

5. The centrifugal fan with a shock-absorbing base according to claim 4, characterized in that: The two side walls of the first connecting plate (14) are respectively inserted and installed in the sliding grooves (24) of the bottom wall bodies of the first mounting seat (10) and the second mounting seat (11), and the first compression spring (26) is fixedly installed on the wall body located at the position of the positioning block (23) on one side of the first mounting seat (10) and the second mounting seat (11), and the other side wall body of the first compression spring (26) is inserted and installed in the groove of the side wall body in the first mounting groove (21), and the bottom wall body of the first compression spring (26) is also embedded and installed in the groove of the side wall body at the top of the first connecting plate (14).

6. The centrifugal fan with a shock-absorbing base according to claim 5, characterized in that: A rotating shaft (27) is fixedly mounted on the lower wall bodies at the front and rear ends of the first support column (12) and the second support column (13); the first support column (12) is rotatably mounted in the second mounting groove (22) of the side wall body of the first mounting seat (10) via the rotating shaft (27) on the lower wall body; and the second support column (13) is rotatably mounted in the second mounting groove (22) of the side wall body of the second mounting seat (11) via the rotating shaft (27) on the lower wall body.

7. The centrifugal fan with a shock-absorbing base according to claim 6, characterized in that: A second connecting plate (28) is provided on the front and rear end walls of one side of the first support column (12), the first support column (12) and the two second connecting plates (28) are integrally cast, and a third connecting plate (29) is provided on the front and rear end walls of the second support column (13) on the side close to the first support column (12), the two third connecting plates (29) and the second support column (13) are integrally cast, and a limiting shaft (30) is provided on the wall on the opposite side of the two third connecting plates (29), the limiting shaft (30) is fixedly mounted on the wall of the third connecting plate (29) by welding, and the second connecting plate (28) is rotatably mounted on the limiting shaft (30) on one side of the third connecting plate (29) through a through hole in one side wall.

8. The centrifugal fan with a shock-absorbing base according to claim 7, characterized in that: A second screw groove (31) is provided in the top wall of each of the first support column (12) and the second support column (13), and a rubber pad (32) is provided on the top wall of each of the first support column (12) and the second support column (13). The rubber pad (32) is fixedly mounted on the top wall of the first support column (12) or the second support column (13) by means of a fixing screw (33).

9. The centrifugal fan with a shock-absorbing base according to claim 1, characterized in that: The bottom wall of the fixed column (34) is fixedly mounted on the wall at the top center position of the first connecting plate (14) by welding. A telescopic groove (35) is provided in the wall of the fixed column (34). A telescopic rod (36) is provided in the telescopic groove (35). A limit block (37) is provided on the bottom wall of the telescopic rod (36). The limit block (37) is fixedly mounted on the bottom wall of the telescopic rod (36) by welding. The telescopic rod (36) is inserted into the telescopic groove (35) through the limit block (37). A third screw groove (38) is provided in the top wall of the telescopic rod (36). A first screw rod (39) is rotatably mounted in the third screw groove (38). A knob block (40) is provided on the top wall of the first screw rod (39). The bottom wall of the knob block (40) is fixedly mounted on the top wall of the first screw rod (39) by welding.

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