Bevel gear structure

Abstract

This utility model discloses a bevel gear structure, relating to the field of gears. The key technical points are: it includes a gear body with several straight teeth on its outer peripheral wall. Feedback layers are provided on the left and right tooth surfaces of three straight teeth. Each feedback layer sequentially includes a base layer and a contrasting color layer. The base layer is transparent, and a color developer layer is provided on the side of the base layer facing away from the contrasting color layer. The feedback layer is detachable from the tooth surfaces of the straight teeth. Gear contact causes deformation on the base layer, and when the gear contacts the color developer layer, the color developer is peeled off, creating a color contrast between the contact point and the contrasting color layer. Through the deformation of the base layer and the color contrast, the position of the contact point can be clearly indicated, thereby judging the gear meshing effect. The gear body is made of carbon steel, ensuring the overall strength and lifespan of the bevel gear.

Description

Technical Field

[0001] This utility model relates to the field of gears, and more specifically, to a bevel gear structure. Background Technology

[0002] Bevel gears, also known as conical gears, are mechanical parts used to transmit motion and power between two intersecting shafts. Their teeth are distributed on the surface of a cone, and the tooth profile gradually decreases from the large end to the small end.

[0003] During the installation of two bevel gears, the distance between them needs to be adjusted to ensure the meshing effect. One method to judge whether the meshing effect of the two bevel gears meets the requirements is to apply a colorant to the meshing tooth surface of the bevel gears, then manually rotate the bevel gears several times and observe the contact marks left on the tooth surface to evaluate the meshing quality of the gears. The distribution of contact spots is used to judge the meshing effect of the two bevel gears. It is important to ensure that the contact spots are centered and avoid being biased towards the tooth tip or tooth root. However, the contact spots themselves are not very obvious on the tooth surface and are limited by light and position, making them inconvenient for people to observe.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a bevel gear structure.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a bevel gear structure, including a gear body, wherein a plurality of tooth groups are provided on the outer peripheral wall of the gear body, and the tooth groups include three straight teeth. Feedback layers are provided on the left and right tooth surfaces of the straight teeth in one of the tooth groups. The feedback layers are flush with the front and rear sides of the straight teeth. The feedback layers sequentially include a base layer and a contrasting color layer. The base layer is transparent. A color developer layer is provided on the side of the base layer facing away from the contrasting color layer. The base layer can undergo plastic deformation toward the contrasting color layer. The feedback layer is detachable from the tooth surface of the straight teeth.

[0007] The present invention is further configured such that: two adjacent feedback layers are connected to each other through a connecting layer, the connecting layer is fitted to the gear body and located between two straight teeth, the gear body is provided with a plurality of slots, inserts are snapped into the slots, and the inserts are fixedly connected to the connecting layer.

[0008] The present invention is further configured such that: one end of the insert located outside the slot is connected by a connecting block, and there is a gap between the connecting block and the gear body.

[0009] The present invention is further configured such that: the straight tooth includes a large end and a small end, the tooth profile of the straight tooth gradually decreases from the large end to the small end, the slot is disposed on the side of the gear body facing the large end of the straight tooth, and the insert is connected to the side of the feedback layer facing away from the gear body.

[0010] The present invention is further configured such that the depth of the slot is 2 / 3 of the width of the straight tooth.

[0011] The present invention is further configured such that both the gear body and the spur gear are made of carbon steel.

[0012] In summary, this utility model has the following beneficial effects: the contact of the gears will cause deformation on the base layer, and the gears will peel off the color developer layer at the position where they contact the color developer layer, so that the color of the contact position and the contrasting color layer are contrasted. Through the deformation of the base layer and the color contrast, the position of the contact point can be clearly reflected, thereby judging the effect of gear meshing. Moreover, the feedback layer can be removed, so that people can take the feedback layer to a position that is easy to observe, further facilitating the identification of the contact point. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 for Figure 1 Enlarged view of section A in the middle; Figure 3 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 4 This is a layer diagram of the feedback layer in this utility model.

[0014] In the diagram: 1. Gear body; 2. Spur gear; 3. Feedback layer; 4. Base layer; 5. Developer layer; 6. Contrast color layer; 7. Connecting layer; 8. Slot; 9. Insert; 10. Connecting block. Detailed Implementation

[0015] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0016] A bevel gear structure, such as Figure 1 , Figure 2 and Figure 4As shown, the gear includes a gear body 1, with several tooth groups on its outer peripheral wall. Each tooth group includes three straight teeth 2. Feedback layers 3 are provided on the left and right tooth surfaces of one of the straight teeth 2. Each straight tooth 2 has a large end and a small end, with the tooth shape gradually decreasing from the large end to the small end. The front and rear sides of the feedback layer 3 are flush with the front and rear sides of the straight tooth 2. The feedback layer 3 sequentially includes a base layer 4 and a contrasting color layer 6. The base layer 4 is transparent. A colorant layer 5 is provided on the side of the base layer 4 facing away from the contrasting color layer 6. The colorant layer 5 peels off from the base layer 4 under the contact of the gear. The colorant layer 5 is either red lead powder or Prussian blue coated on the base layer 4. These two colorants are easy to clean and will not affect subsequent gear meshing. The base layer 4 can undergo plastic deformation towards the contrasting color layer 6 under contact. The base layer 4 is made of transparent plastic. The feedback layer 3 is detachable from the tooth surfaces of the straight teeth 2. After adjusting the gear... After spacing, rotate the bevel gear so that the spur gear 2 with feedback layer 3 is not in a meshing state. Then, install feedback layer 3 on spur gear 2. The thickness of feedback layer 3 is 0.1 mm to 0.3 mm. Since the thickness of feedback layer 3 is relatively thin, it will not affect the rotation of the gear. After rotating the bevel gear a few times, remove feedback layer 3 from spur gear 2. The gear contact will cause deformation on base layer 4, and the gear will peel off the color developer layer 5 at the position where it contacts the color developer layer 5, so that the color of the contact position and the contrasting color layer 6 are contrasted. Through the deformation of base layer 4 and the color contrast, the position of the contact point can be clearly reflected, thereby judging the effect of gear meshing. The feedback layer 3 can be removed, so that people can take the feedback layer 3 to a position that is easy to observe, which further facilitates the identification of the contact point. In the subsequent use of the bevel gear, feedback layer 3 is separate from gear body 1 and will not affect the use of bevel gear.

[0017] like Figure 1 , Figure 2 and Figure 3As shown, adjacent feedback layers 3 are connected to each other via a connecting layer 7. The connecting layer 7 fits against the gear body 1 and is located between two straight teeth 2. Several slots 8 are provided on the gear body 1, and inserts 9 are engaged in the slots 8. The inserts 9 are fixedly connected to the connecting layers 7. In this embodiment, there are three connecting layers 7 and three slots 8. The depth of the slots 8 is 2 / 3 of the tooth width of the straight teeth 2. By inserting the inserts 9 into the slots 8, the connecting layers 7 and feedback layers 3 are fixed on the straight teeth 2. Because the gear rotates slowly and in few revolutions during testing, it will not have a significant impact on the fixation of the inserts 9. The slots 8 are located on the side of the gear body 1 facing the large end of the straight teeth 2. When inserting the inserts 9 into the slots 8, the feedback layers 3 located on both sides of the connecting layers 7 will be inserted between the two straight teeth 2 and cover the teeth. The slot 8 is positioned on the tooth surface of the spur gear 2, and the location of the slot 8 will not affect the overall strength of the spur gear 2. The insert 9 is connected to the side of the feedback layer 3 facing away from the gear body 1. This arrangement results in a large contact area between the insert 9 and the connecting layer 7, ensuring the connection strength between the insert 9 and the connecting layer 7. The position of the insert 9 connecting to the feedback layer 3 is located at the tooth root of the spur gear 2, and the tooth root position will not mesh with the gear, so it will not affect the gear transmission meshing. The end of the insert 9 located outside the slot 8 is connected by the connecting block 10. There is a gap between the connecting block 10 and the gear body 1. The connecting block 10 connects all the inserts 9 together, so that people can control the movement of all the feedback layers 3 at the same time, which facilitates the installation and removal of the feedback layers 3. The gear body 1 and the spur gear 2 are both made of carbon steel. This arrangement ensures the overall strength and life of the bevel gear.

[0018] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A bevel gear structure, characterized in that: The gear body (1) includes a gear body (1) with a number of tooth groups on its outer peripheral wall. Each tooth group includes three straight teeth (2). Feedback layers (3) are provided on the left and right tooth surfaces of one of the straight teeth (2). The feedback layers (3) are flush with the front and rear sides of the straight teeth (2). The feedback layers (3) include a base layer (4) and a contrasting color layer (6) in sequence. The base layer (4) is transparent. A color developer layer (5) is provided on the side of the base layer (4) facing away from the contrasting color layer (6). The base layer (4) can undergo plastic deformation toward the contrasting color layer (6). The feedback layers (3) are detachable from the tooth surfaces of the straight teeth (2).

2. The bevel gear structure according to claim 1, characterized in that: The two adjacent feedback layers (3) are connected to each other through a connecting layer (7). The connecting layer (7) fits against the gear body (1) and is located between two straight teeth (2). The gear body (1) has several slots (8). Inserts (9) are snapped into the slots (8). The inserts (9) are fixedly connected to the connecting layer (7).

3. The bevel gear structure according to claim 2, characterized in that: The insert (9) is connected to the slot (8) by a connecting block (10) at one end, and there is a gap between the connecting block (10) and the gear body (1).

4. A bevel gear structure according to claim 2, characterized in that: The straight tooth (2) includes a large end and a small end. The tooth shape of the straight tooth (2) gradually decreases from the large end to the small end. The slot (8) is disposed on the side of the gear body (1) facing the large end of the straight tooth (2). The insert (9) is connected to the side of the feedback layer (3) facing away from the gear body (1).

5. A bevel gear structure according to claim 2, characterized in that: The depth of the slot (8) is 2 / 3 of the width of the straight tooth (2).

6. The bevel gear structure according to claim 1, characterized in that: The gear body (1) and the spur gear (2) are both made of carbon steel.

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