Crowned tooth coupling of wind power test bench

Abstract

The utility model relates to a crowned tooth coupling of a wind power test bed, which is connected with a driving component and a driven component at two ends and comprises an inner gear ring, a first outer gear ring, a second outer gear ring, an end face flange and a baffle, the first outer gear ring and the second outer gear ring are installed on the two sides of the inner gear ring correspondingly. The end face flanges are installed on the end faces, away from the inner gear ring, of the first outer gear ring and the second outer gear ring. The multiple baffles are circumferentially and evenly distributed and detachably installed on the two end faces of the inner gear ring, and one part of each baffle makes contact with the first outer gear ring or the second outer gear ring. Compared with the prior art, the gear ring has the advantages that the independent baffle is detachably connected with the inner gear ring, so that the first outer gear ring and the second outer gear ring are convenient to detach; the sliding section is only arranged on the first outer gear ring, so that the axial distance of the coupling is shortened, and the total mass is reduced; and arc-shaped structures are arranged on the first outer gear ring and the second outer gear ring, so that the inner gear ring is convenient to mount, and the assembly difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to a coupling, in particular to a drum-shaped gear coupling of a wind power test bench. Background Art

[0002] The drum gear coupling of the wind power test bench is a mechanical transmission device widely used in wind power equipment. It is mainly used to connect two non-concentric shafts or shaft segments and transmit rotational motion and torque. The working principle is mainly to transmit torque and rotational motion through the meshing of the outer ring gear and the inner gear. When the transmission device rotates, the rack of the outer ring gear meshes with the rack of the inner gear, so that the inner gear also rotates, and then transmits torque and rotational motion to the driven device. Due to the design of the drum gear, the coupling allows a certain angular displacement, thereby improving the contact conditions of the teeth, improving the ability to transmit torque, and extending the service life.

[0003] In the prior art, the outer gear ring in the coupling is fixed by an annular pressure cover, and the design of the annular pressure cover is not conducive to the detachment of the outer gear ring. Therefore, how to design a drum gear coupling that is easy to disassemble the outer gear ring is a technical problem that needs to be solved. Utility Model Content

[0004] The purpose of the utility model is to provide a drum gear coupling for a wind power test bench in order to overcome the defect of the prior art that the outer gear ring is difficult to disengage.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] According to one aspect of the utility model, a drum gear coupling of a wind power test bench is provided, with active components and passive components connected at both ends, including an inner gear ring, a first outer gear ring, a second outer gear ring, an end face flange and a baffle; the first outer gear ring and the second outer gear ring are respectively installed on both sides of the inner gear ring; the end face flange is installed on the end faces of the first outer gear ring and the second outer gear ring away from the inner gear ring; there are multiple baffles, which are evenly distributed around the circumference and can be detachably installed on the two end faces of the inner gear ring, and a part of them is in contact with the first outer gear ring or the second outer gear ring.

[0007] As a preferred technical solution, the first outer gear ring includes a first gear segment, a sliding segment and a first flange mounting segment arranged in sequence; the first gear segment cooperates with the inner gear ring, and the baffle contacts the end face of the first gear segment away from the inner gear ring; the first flange mounting segment is connected to the end face flange.

[0008] As a preferred technical solution, the lengths of the first gear segment and the sliding segment are greater than the tooth width of the inner gear ring.

[0009] As a preferred technical solution, the second outer gear ring includes a second gear segment and a second flange mounting segment arranged in sequence, the second gear segment cooperates with the inner gear ring, the baffle contacts the end face of the second gear segment away from the inner gear ring; the second flange mounting segment is connected to the end face flange.

[0010] As a preferred technical solution, the first outer gear ring is provided with a keyway or a pin hole, and is connected to the end face flange via a flat key or a pin shaft.

[0011] As a preferred technical solution, the second outer gear ring is provided with a keyway or a pin hole, and is connected to the end face flange via a flat key or a pin shaft.

[0012] As a preferred technical solution, the first outer gear ring is connected to the passive component, and the second outer gear ring is connected to the active component.

[0013] As a preferred technical solution, the teeth on the first outer tooth ring and the second outer tooth ring are provided with arc structures on both sides along the tooth width direction.

[0014] As a preferred technical solution, the tooth widths of the first outer tooth ring and the second outer tooth ring are smaller than the tooth width of the inner tooth ring.

[0015] As a preferred technical solution, the baffle is rectangular, one end of which is provided with a mounting hole, and is connected to the inner gear ring through the mounting hole.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1) The utility model provides an independent baffle plate which is detachably connected to the inner gear ring, thereby limiting the sliding of the inner gear ring and facilitating the disassembly of the first outer gear ring and the second outer gear ring;

[0018] 2) The utility model only sets the sliding section on the first outer gear ring, which shortens the axial distance of the coupling and reduces the total mass;

[0019] 3) The first outer gear ring and the second outer gear ring of the utility model are connected to the end face flange through a flat key or a pin shaft, which is simple to process and can reduce the subsequent replacement cost;

[0020] 4) The first outer gear ring and the second outer gear ring of the utility model are provided with an arc structure, which is convenient for installing the inner gear ring; the tooth width of the first outer gear ring and the second outer gear ring is smaller than the tooth width of the inner gear ring, which increases the tooth shape compensation amount; both reduce the difficulty of assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a cross-sectional view of a drum gear coupling of a wind power test bench of the utility model;

[0022] Figure 2 This is the front view of the first outer gear ring of the utility model;

[0023] Figure 3 This is a side view of the first outer gear ring of the utility model;

[0024] Figure 4 This is the front view of the second outer gear ring of the utility model;

[0025] Figure 5 This is a side view of the second outer gear ring of the utility model;

[0026] Figure 6 It is a schematic diagram of the tooth structure of the first outer gear ring and the second outer gear ring of the utility model;

[0027] Figure 7 It is a schematic diagram of the tooth profiles of the first outer gear ring and the second outer gear ring of the utility model;

[0028] Figure 8 This is the front view of the internal gear ring of the utility model;

[0029] Fig. 9 This is a side view of the internal gear ring of the utility model;

[0030] Fig.10 This is the front view of the baffle of the utility model;

[0031] Fig.11 This is a side view of the baffle of the utility model;

[0032] Fig.12 This is a schematic diagram of the installation position of the baffle of the utility model;

[0033] Fig.13 This is a schematic diagram of the installation position of the flat key of the utility model;

[0034] The numbers in the figure show:

[0035] 1. Inner gear ring, 2. First outer gear ring, 21. First gear segment, 22. Sliding segment, 23. First flange mounting segment, 3. Second outer gear ring, 31. Second gear segment, 32. Second flange mounting segment, 4. End face flange, 5. Baffle, 51. Mounting hole, 6. Flat key, 7. Pin, 8. Arc structure, A. Tooth profile compensation amount. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0037] like Figure 1As shown, the utility model provides a drum gear coupling for a wind power test bench, one end of which is connected to an active component and the other end is connected to a passive component. It includes an inner gear ring 1, a first outer gear ring 2, a second outer gear ring 3, an end face flange 4, a baffle 5, a flat key 6 and a pin 7.

[0038] like Figure 8 and Fig. 9 As shown, the two sides of the inner gear ring 1 are respectively mounted in cooperation with the first outer gear ring 2 and the second outer gear ring 3 .

[0039] like Figure 2 and Figure 3 As shown, the first outer gear ring 2 is connected to the passive component through the end face flange 4, including a first gear segment 21, a sliding segment 22 and a first flange mounting segment 23 arranged in sequence, the first gear segment 21 cooperates with the inner gear ring 1; the sliding segment 22 has a smaller diameter than the first gear segment 21, the lengths of the first gear segment 21 and the sliding segment 22 are greater than the tooth width of the inner gear ring 1, and the inner gear ring 1 can be completely slid onto the first outer gear ring 2; the first flange mounting segment 23 has the same diameter as the end face flange 4, is provided with a keyway, and is connected to the end face flange 4 through a flat key 6.

[0040] like Figure 4 and Figure 5 As shown, the second outer gear ring 3 is connected to the active component through the end face flange 4, including a second gear segment 31 and a second flange mounting segment 32 arranged in sequence, the second gear segment 31 cooperates with the inner gear ring 1; the second flange mounting segment 32 has the same diameter as the end face flange 4, is provided with a pin hole, and is connected to the end face flange 4 through a pin shaft 7.

[0041] like Figure 6 As shown, the teeth of the first outer gear ring 2 and the second outer gear ring 3 are provided with arc structures on both sides along the tooth width direction, so as to facilitate the installation with the inner gear ring 1.

[0042] like Figure 7 As shown, the teeth of the first outer gear ring 2 and the second outer gear ring 3 are provided with a tooth shape compensation amount A, and the tooth width is smaller than the tooth width of the inner gear ring 1, so as to facilitate centering assembly.

[0043] like Fig.10 and Fig.11As shown, the baffle 5 is rectangular and is provided with a mounting hole 51. It is connected to the end face of the inner gear ring 1 through the mounting hole 51, which is convenient for disassembly to realize the disassembly of the first outer gear ring 2 and the second outer gear ring 3; a chamfer is provided on the side close to the outer ring of the inner gear ring 1 to adapt to the shape of the inner gear ring 1 without protruding outside the inner gear ring 1; the end of the baffle 5 not connected to the inner gear ring 1 extends to the first outer gear ring 2 or the second outer gear ring 3. If it is installed on the end face of the side where the inner gear ring 1 is connected to the first outer gear ring 2, it contacts the end face of the first gear segment 21 of the first outer gear ring 2 away from the inner gear ring 1; if it is installed on the end face of the side where the inner gear ring 1 is connected to the second outer gear ring 3, it contacts the end face of the second gear segment 31 of the second outer gear ring 3 away from the inner gear ring 1, so as to realize the position restriction of the inner gear ring 1, as shown in FIG. Fig.12 There are multiple baffles 5, which are evenly distributed around the circumference and installed on the end surface of the inner gear ring 1.

[0044] The pin 7 is used to transmit torque.

[0045] like Fig.13 As shown, the flat key 6 is used to transmit torque.

[0046] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A drum gear coupling for a wind power test bench, with active components and passive components connected at both ends, characterized in that: The invention comprises an inner gear ring (1), a first outer gear ring (2), a second outer gear ring (3), an end face flange (4) and a baffle (5); the first outer gear ring (2) and the second outer gear ring (3) are respectively mounted on both sides of the inner gear ring (1); the end face flange (4) is mounted on the end faces of the first outer gear ring (2) and the second outer gear ring (3) away from the inner gear ring (1); and the baffle (5) is in plurality and is evenly distributed around the circumference and can be detachably mounted on the two end faces of the inner gear ring (1), with a part of the baffle being in contact with the first outer gear ring (2) or the second outer gear ring (3).

2. A drum gear coupling for a wind power test bench according to claim 1, characterized in that: The first outer gear ring (2) comprises a first gear segment (21), a sliding segment (22) and a first flange mounting segment (23) which are arranged in sequence; the first gear segment (21) cooperates with the inner gear ring (1), and the baffle (5) contacts the end surface of the first gear segment (21) away from the inner gear ring (1); and the first flange mounting segment (23) is connected to the end surface flange (4).

3. A drum gear coupling for a wind power test bench according to claim 2, characterized in that: The lengths of the first gear section (21) and the sliding section (22) are greater than the tooth width of the inner gear ring (1).

4. The drum gear coupling of a wind power test bench according to claim 2, characterized in that: The second outer gear ring (3) comprises a second gear segment (31) and a second flange mounting segment (32) which are arranged in sequence, the second gear segment (31) cooperates with the inner gear ring (1), the baffle (5) contacts the end face of the second gear segment (31) away from the inner gear ring (1); the second flange mounting segment (32) is connected to the end face flange (4).

5. The drum gear coupling of a wind power test bench according to claim 1, characterized in that: The first outer gear ring (2) is provided with a keyway or a pin hole, and is connected to the end face flange (4) via a flat key (6) or a pin shaft (7).

6. The drum gear coupling of a wind power test bench according to claim 1, characterized in that: The second outer gear ring (3) is provided with a keyway or a pin hole, and is connected to the end face flange (4) via a flat key (6) or a pin shaft (7).

7. The drum gear coupling of a wind power test bench according to claim 1, characterized in that: The first outer gear ring (2) is connected to the passive component, and the second outer gear ring (3) is connected to the active component.

8. The drum gear coupling of a wind power test bench according to claim 1, characterized in that: The teeth on the first outer tooth ring (2) and the second outer tooth ring (3) are provided with arc-shaped structures (8) on both sides along the tooth width direction.

9. The drum gear coupling of a wind power test bench according to claim 1, characterized in that: The tooth widths of the first outer toothed ring (2) and the second outer toothed ring (3) are smaller than the tooth width of the inner toothed ring (1).

10. The drum gear coupling of a wind power test bench according to claim 1, characterized in that: The baffle (5) is rectangular, one end of which is provided with a mounting hole (51), and is connected to the inner gear ring (1) through the mounting hole (51).

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