Fixing support capable of manually turning rotor

Abstract

The utility model provides a fixing bracket capable of manually turning a rotor, which can solve the problems that the conventional bracket is difficult to realize manual turning, needs to be overturned by virtue of hoisting equipment, and is high in consumption and extremely inconvenient. The fixing support comprises a support unit and two rotating units, the support unit comprises two supporting seats, two vertical plates are arranged at the supporting ends of the supporting seats, arc-shaped notches are formed in the top ends of the vertical plates, an arc-shaped supporting plate is arranged between the arc-shaped notches of the two corresponding vertical plates, and the two arc-shaped edges of the arc-shaped supporting plate are connected with the two vertical plates respectively. The arc-shaped supporting plate, the supporting base and the vertical plates which are correspondingly connected form installation spaces, two through holes are formed in the arc-shaped supporting plate, the two rotating units are arranged in the two installation spaces respectively, each rotating unit comprises two rotating assemblies, each rotating assembly comprises a fixing shaft and a bearing, the fixing shafts are arranged on the two vertical plates in a penetrating mode, and the bearings are arranged on the fixing shafts. The bearings sleeve the fixed shaft, and the local peripheries of the two bearings extend out of the corresponding through holes respectively and then are used for being in rolling fit with the rotor main shaft.

Description

Technical Field

[0001] The utility model relates to a fixing bracket of a rotor, in particular to a fixing bracket capable of rotating the rotor manually. Background Art

[0002] At present, when transporting the rotor of a centrifugal fan, the rotor is usually fixed with a steel fixed bracket before transportation. The existing fixed bracket includes a base and two support seats relatively arranged on the base. The two support seats are used to fix the main shaft of the rotor. A rubber pad is provided between the main shaft and the end of the support seat to prevent the rotor from moving, displacing and wearing during transportation. After the rotor and the fixed bracket are transported to the user's site, if the user does not need to install the rotor immediately, the rotor and the fixed bracket will be placed for a long time. Long-term placement can easily cause the rotor main shaft to bend or the dynamic balance to be unbalanced, and the rotor will vibrate when it is installed later. In order to avoid these problems, the rotor must be cranked during placement (cranking refers to changing the position by rotating the rotor to eliminate deformation). However, since the weight of the rotor is usually more than ten tons or even twenty tons, it is difficult to manually crank the existing fixed bracket. It is necessary to use external lifting equipment such as a crane to complete the flipping operation, which is very costly and extremely inconvenient. Utility Model Content

[0003] The purpose of the utility model is to solve the technical problem that the existing fixed bracket is difficult to achieve manual turning and needs to use external lifting equipment such as a crane to complete the turning operation, which is very costly and inconvenient, and to provide a fixed bracket that can manually turn the rotor.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A fixed bracket capable of manually rotating a rotor, the special features of which are:

[0006] It includes a support unit and two rotating units;

[0007] The support unit includes two supporting seats arranged opposite to each other, and the supporting end of each supporting seat is provided with two vertical plates parallel to each other, and the top of each vertical plate is respectively provided with an arc-shaped notch;

[0008] An arc-shaped support plate is provided between the arc-shaped notches of the two corresponding vertical plates, and the two arc-shaped edges of the arc-shaped support plate are respectively connected to the two vertical plates, so that the correspondingly connected arc-shaped support plates, the support seat and the two vertical plates form an installation space; the arc-shaped support plate is provided with two through holes, and the arc-shaped support plate is used to place the rotor main shaft to be fixed;

[0009] The two rotating units are respectively arranged in the two installation spaces, each rotating unit includes two rotating assemblies, and the two rotating assemblies are symmetrically arranged relative to the axis of the rotor main shaft;

[0010] The rotating assembly includes a fixed shaft and a bearing. The fixed shaft is passed through two corresponding vertical plates and is parallel to the axial direction of the rotor main shaft. The bearing is sleeved on the fixed shaft and located between the two corresponding vertical plates. The partial outer circumferences of the two bearings extend out of the two through holes respectively and are used for rolling cooperation with the rotor main shaft.

[0011] Furthermore, in order to ensure the stability of the bearing rotation, the fixed shaft includes a head nut, a locking nut and a stepped three-section screw;

[0012] The two ends of the three-stage screw are respectively passed through two corresponding vertical plates;

[0013] The head nut and the lock nut are respectively located on the outside of the two corresponding vertical plates and are respectively connected to the large diameter section and the small diameter section of the three-section screw;

[0014] The bearing is located in the installation space and is sleeved on the middle section of the three-section screw. It is fixed by a fixing nut sleeved on the small-diameter section and abuts against the large-diameter section.

[0015] Furthermore, two reinforcing vertical plates are provided between the two ends of the arc-shaped support plate and the supporting end of the support seat;

[0016] The reinforcing vertical plate is provided with a through hole for allowing a partial outer periphery of the corresponding bearing to extend out.

[0017] Furthermore, it also includes two pressing plate assemblies respectively arranged on the two supporting seats;

[0018] Each of the pressing plate assemblies includes an upper pressing plate and two lower pressing plates, wherein the upper pressing plate includes an arc-shaped pressing plate and connecting plates arranged at both ends of the arc-shaped pressing plate;

[0019] The two lower pressing plates are respectively connected to the two ends of the arc-shaped support plate and are located between the two corresponding vertical plates; the two lower pressing plates are respectively detachably connected to the two connecting plates;

[0020] The arc-shaped pressure plate and the arc-shaped support plate together form an annular cavity for accommodating the rotor main shaft; the inner diameter of the annular cavity is larger than the outer diameter of the rotor main shaft.

[0021] Furthermore, it also includes a base;

[0022] The two support seats are arranged opposite to each other on the base.

[0023] Furthermore, the base is a rectangular structure;

[0024] The support seat is an isosceles trapezoidal structure;

[0025] The bottom end of the support seat is fixedly connected to the two long sides of the base, and a supporting diagonal rod is connected between the supporting end of the support seat and the corresponding short sides of the base.

[0026] Furthermore, lifting ears are provided on both oblique sides of the support seat.

[0027] Furthermore, the head nut is integrated with the three-section screw.

[0028] Beneficial effects of the utility model:

[0029] 1. The utility model provides a fixed bracket that can rotate the rotor manually. Since a rotating unit is provided, the rotor can be freely rotated by human external force without the aid of external lifting equipment, which is very convenient, reduces maintenance costs and maintenance workload, and improves user experience and satisfaction.

[0030] 2. The fixed shaft in the present invention can better ensure the stability of the bearing rotation, the strengthened vertical plate is conducive to enhancing the supporting rigidity of the arc-shaped support plate, and the pressure plate assembly can improve the placement stability of the rotor main shaft.

[0031] 3. The base in the present invention has the advantage of enhancing the stability of the support seat, and the provision of a supporting diagonal rod can further enhance the stability of the support seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a structural schematic diagram of an embodiment of a fixing bracket capable of manually rotating a rotor according to the present invention;

[0033] Figure 2 yes Figure 1 A-direction view;

[0034] Figure 3 It is a cross-sectional view of the vertical plate, the arc-shaped support plate and the rotating assembly in an embodiment of the present utility model;

[0035] Figure 4 This is a structural diagram of another perspective of an embodiment of the utility model;

[0036] Figure 5 yes Figure 4 Schematic diagram of the structure after removing the upper pressure plate (rotating unit not shown).

[0037] Description of reference numerals:

[0038] 1-support unit, 10-support seat, 2-rotation unit, 20-rotation assembly, 3-vertical plate, 4-arc-shaped notch, 5-arc-shaped support plate, 6-through hole, 7-fixed shaft, 8-bearing, 9-pressure plate assembly, 90-upper pressure plate, 91-lower pressure plate, 11-reinforced vertical plate, 12-through hole, 13-arc-shaped pressure plate, 14-connecting plate, 15-base, 16-support diagonal rod, 17-lifting ear, 18-rotor main shaft, 19-fixing nut. DETAILED DESCRIPTION

[0039] like Figure 1-Figure 5As shown, a fixed bracket for manually rotating a rotor comprises a support unit 1, a base 15, two pressure plate assemblies 9, and two rotating units 2. Specifically, the support unit 1 comprises two support bases 10, which are arranged oppositely on the base 15. In this embodiment, the support bases 10 are isosceles trapezoidal structures, and the base 15 is rectangular. The bottom ends of the support bases 10 are fixedly connected to the two long sides of the base 15. Two supporting diagonal rods 16 are connected between the supporting ends of the support bases 10 and the corresponding short sides of the base 15. Lifting ears 17 are provided on the two oblique sides of the support bases 10. Two parallel vertical plates 3 are provided at the supporting ends of each support base 10. Each vertical plate 3 has an arc-shaped notch 4 at the top. An arc-shaped support plate 5 is provided between the arc-shaped notches 4 of the two corresponding vertical plates 3. The two arc-shaped sides of the arc-shaped support plate 5 are respectively connected to the two vertical plates 3, so that the correspondingly connected arc-shaped support plates 5, the support base 10, and the two vertical plates 3 form an installation space. The arc-shaped support plate 5 is provided with two through holes 6. Two pressure plate assemblies 9 are respectively arranged on two support seats 10. Each pressure plate assembly 9 includes an upper pressure plate 90 and two lower pressure plates 91. The upper pressure plate 90 includes an arc-shaped pressure plate 13 and connecting plates 14 arranged at both ends of the arc-shaped pressure plate 13. The two lower pressure plates 91 are respectively connected to the two ends of the arc-shaped support plate 5 and are located between the two corresponding vertical plates 3. The two lower pressure plates 91 are respectively detachably connected to the two connecting plates 14. The arc-shaped pressure plate 13 and the arc-shaped support plate 5 together constitute an annular cavity for placing the rotor main shaft 18 to be fixed. The inner diameter of the annular cavity is larger than the outer diameter of the rotor main shaft 18. The two rotating units 2 are respectively arranged in two installation spaces. Each rotating unit 2 includes two rotating assemblies 20. The two rotating assemblies 20 are symmetrically arranged with respect to the axis of the rotor main shaft 18. Each rotating assembly 20 includes a fixed shaft 7 and a bearing 8. The fixed shaft 7 includes a head nut, a lock nut, and a stepped three-section screw. The ends of the three-section screw are respectively inserted into the two corresponding vertical plates 3 and are parallel to the axis of the rotor main shaft 18. The head nut and lock nut are respectively located on the outer sides of the two corresponding vertical plates 3 and connected to the large and small diameter sections of the three-section screw. The head nut and the three-section screw are integrated into the three-section screw. The bearing 8 is located in the installation space and is mounted on the middle section of the three-section bolt. It is fixed and abutted against the large diameter section by a fixing nut 19 mounted on the small diameter section. The partial outer circumferences of the two bearings 8 extend from the two corresponding through holes 6, respectively, for rolling engagement with the rotor main shaft 18. Two reinforcing vertical plates 11 are provided between the two ends of the arc-shaped support plate 5 and the supporting end of the support seat 10. The reinforcing vertical plates 11 are provided with through holes 12 for the partial outer circumferences of the corresponding bearings 8 to extend.

[0040] The present invention allows manual external force to rotate the rotor, preventing deformation of the rotor shaft 18 due to its own gravity when the rotor is left for a long time, which could lead to an imbalance in the rotor's dynamic balance. Therefore, regularly rotating a long-standing rotor can eliminate deformation and effectively improve product quality and reliability.

[0041] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present invention shall be covered by the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. A fixed bracket capable of manually rotating a rotor, characterized in that: It comprises a support unit (1) and two rotating units (2); The support unit (1) comprises two supporting seats (10) arranged opposite to each other, each supporting seat (10) is provided with two mutually parallel vertical plates (3) at the supporting end, and each vertical plate (3) is provided with an arc-shaped notch (4) at the top end; An arc-shaped support plate (5) is provided between the arc-shaped notches (4) of the two corresponding vertical plates (3), and the two arc-shaped edges of the arc-shaped support plate (5) are respectively connected to the two vertical plates (3), so that the arc-shaped support plates (5) connected to each other, the support seat (10) and the two vertical plates (3) form an installation space; two through holes (6) are provided on the arc-shaped support plate (5), and the arc-shaped support plate (5) is used to place the rotor main shaft (18) to be fixed; The two rotating units (2) are respectively arranged in the two installation spaces, each rotating unit (2) comprises two rotating assemblies (20), and the two rotating assemblies (20) are symmetrically arranged relative to the axis of the rotor main shaft (18); The rotating assembly (20) includes a fixed shaft (7) and a bearing (8). The fixed shaft (7) is passed through two corresponding vertical plates (3) and is parallel to the axis direction of the rotor main shaft (18). The bearing (8) is sleeved on the fixed shaft (7) and is located between the two corresponding vertical plates (3). The partial outer circumferences of the two bearings (8) extend out of the two through holes (6) respectively and are used for rolling cooperation with the rotor main shaft (18).

2. The fixing bracket for manually rotating a rotor according to claim 1, characterized in that: The fixed shaft (7) comprises a head nut, a locking nut and a stepped three-section screw; The two ends of the three-section screw are respectively passed through two corresponding vertical plates (3); The head nut and the locking nut are respectively located on the outside of the two corresponding vertical plates (3) and are respectively connected to the large diameter section and the small diameter section of the three-section screw; The bearing (8) is located in the installation space and is sleeved on the middle section of the three-section screw. It is fixed by a fixing nut (19) sleeved on the small diameter section and abuts against the large diameter section.

3. The fixing bracket for manually rotating a rotor according to claim 1 or 2, characterized in that: Two reinforcing vertical plates (11) are provided between the two ends of the arc-shaped support plate (5) and the supporting end of the support seat (10); The reinforcing vertical plate (11) is provided with a through hole (12) for allowing a partial outer periphery of the corresponding bearing (8) to extend out.

4. The fixing bracket for manually rotating a rotor according to claim 3, characterized in that: It also includes two pressing plate assemblies (9) respectively arranged on two supporting seats (10); Each of the pressure plate assemblies (9) includes an upper pressure plate (90) and two lower pressure plates (91), wherein the upper pressure plate (90) includes an arc-shaped pressure plate (13) and connecting plates (14) arranged at both ends of the arc-shaped pressure plate (13); The two lower pressing plates (91) are respectively connected to the two ends of the arc-shaped support plate (5) and are located between the two corresponding vertical plates (3); the two lower pressing plates (91) are respectively detachably connected to the two connecting plates (14); The arc-shaped pressure plate (13) and the arc-shaped support plate (5) together form an annular cavity for accommodating the rotor main shaft (18); the inner diameter of the annular cavity is larger than the outer diameter of the rotor main shaft (18).

5. The fixing bracket for manually rotating a rotor according to claim 1, characterized in that: Also includes a base (15); The two support seats (10) are arranged opposite to each other on the base (15).

6. The fixing bracket for manually rotating a rotor according to claim 5, characterized in that: The base (15) is a rectangular structure; The support seat (10) is an isosceles trapezoidal structure; The bottom end of the support seat (10) is fixedly connected to the two long sides of the base (15), and a supporting diagonal rod (16) is connected between the supporting end of the support seat (10) and the corresponding short sides of the base (15).

7. The fixing bracket for manually rotating a rotor according to claim 6, characterized in that: Lifting ears (17) are provided on both oblique sides of the support seat (10).

8. The fixing bracket for manually rotating a rotor according to claim 2, characterized in that: The head nut is integrated with the three-section screw.

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