Bevel gear for gear box

Abstract

The utility model relates to a bevel gear for a photovoltaic tracking gearbox, and relates to the field of photovoltaic tracking gearboxes, the bevel gear comprises a gear body, a tooth surface is arranged on the gear body, a flow channel is formed in the gear body, cooling liquid enters the flow channel, and a port of the flow channel is formed in the tooth surface. The flow channel is formed in the gear body, in the cooling liquid spraying process, part of cooling liquid sprayed to the surface of the gear body enters the flow channel to cool the interior of the gear body, cooling of the interior and the exterior of the gear is facilitated, uniform heat dissipation is facilitated, and the heat dissipation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of gear box, especially a helical gear for gear box. BACKGROUND

[0002] Gear box is a kind of mechanical device for transmitting power and adjusting speed, is widely used in automobile, industrial equipment, wind power generation, ship and other fields, and common gear types include spur gear, helical gear, bevel gear, worm gear etc., in the relevant technology, the surface of helical gear is cooled in the process of being cooled by spraying cooling liquid, and the overall cooling is uneven, which needs to be improved. SUMMARY

[0003] The utility model aims at providing a helical gear for gear box to solve the technical problems in the above background.

[0004] The utility model is realized as follows:

[0005] A kind of helical gear for gear box, including gear body, the gear body is equipped with tooth surface, flow channel is set up on the gear body, cooling liquid is entered into the flow channel, the port of the flow channel is set up on the tooth surface.

[0006] Preferably, the gear body is slidably connected with several plugs, the several plugs are used to slide and block the flow channel, the gear body is equipped with driving element, and the driving element drives the plug to move.

[0007] Preferably, the driving element is several thermal expansion and contraction blocks, the thermal expansion and contraction blocks are correspondingly arranged with the plugs, the thermal expansion and contraction blocks are fixed with the gear body, the thermal expansion and contraction blocks are connected with the plugs, the sliding direction of the plug is parallel to the axis of the gear body, and the thermal expansion and contraction blocks are driven to open the flow channel by thermal expansion and drive the plug.

[0008] Preferably, the plug is equipped with filter frame, the distribution direction of the filter frame and the plug is parallel to the sliding direction of the plug, the filter frame is located between the plug and the thermal expansion and contraction block, the plug is connected with the thermal expansion and contraction block by the filter frame, and the filter frame is used to filter cooling liquid.

[0009] Preferably, the gear body is provided with several installation grooves for the thermal expansion and contraction blocks, the middle part of the installation groove is communicated with the flow channel, the thermal expansion and contraction block includes installation part that is screw-connected with the inner wall of the installation groove and expansion part that is connected with the installation part, the expansion part is connected with the plug, the expansion part is located in the installation groove, and the inner wall of the installation groove is attached to the plug.

[0010] Preferably, the block is provided with a sliding groove, the sliding groove penetrates the block along the direction perpendicular to the extension direction of the mounting groove, the sliding groove is used for clamping the filter frame, and the inner wall of the mounting groove covers two ends of the sliding groove.

[0011] Preferably, the flow channel is provided with a plurality of flow channels, and the plurality of flow channels are arranged around the outer periphery of the gear body axis.

[0012] Preferably, the flow channel comprises a circular arc segment and a straight line segment, a plurality of the circular arc segments are connected end to end, the straight line segments are arranged at equal intervals around the outer periphery of the gear body axis, and the straight line segments are in communication with the circular arc segments.

[0013] Compared with the prior art, the utility model has the advantages of:

[0014] 1. The utility model discloses a flow channel is set up on the gear body, and part of the cooling liquid sprayed on the surface of the gear body enters the flow channel to cool the inside of the gear body during the cooling liquid spraying process, which facilitates the cooling of the inside and outside of the gear, is favorable to uniform heat dissipation and improves the heat dissipation efficiency.

[0015] 2. The utility model discloses that the thermal expansion and cold shrink piece drives the block to move when the gear temperature is higher, and the thermal expansion and cold shrink piece drives the block to open the flow channel, and part of the cooling liquid sprayed enters the flow channel, and the heat dissipation efficiency is increased.

[0016] 3. The utility model discloses that the filter frame is arranged between the block and the thermal expansion and cold shrink piece, when the flow channel is opened, the filter frame covers the flow channel, filters the cooling liquid in the flow channel and is favorable to reducing the impurity accumulation in the flow channel. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall structure schematic diagram of the utility model, mainly shows the structure of the flow channel.

[0018] Figure 2 It is the partial sectional view of the utility model, mainly shows the structure of the flow channel.

[0019] Figure 3 It is the overall sectional view of the utility model, mainly shows the internal structure of the mounting groove.

[0020] DESCRIPTION OF THE DRAWINGS: 1, gear body;11, tooth surface;12, mounting groove;2, flow channel;21, circular arc segment;22, straight line segment;3, block;31, sliding groove;4, driving piece;41, thermal expansion and cold shrink block;411, mounting portion;412, expansion portion;5, filter frame;51, connecting head. DETAILED DESCRIPTION

[0021] The utility model is further described below with specific embodiments. See Figure 1 -3:

[0022] The application discloses a helical gear for a gear box. A helical gear for a gear box, see Figure 1 and Figure 2 , comprising a gear body 1, a tooth surface 11 is formed on the gear body 1, and the helical gear is engaged with other gears through the tooth surface 11. A plurality of flow channels 2 are formed on the gear body 1, the flow channels 2 comprise arc segments 21 and straight line segments 22, the plurality of arc segments 21 are arranged around the outer periphery of the axis of the gear body 1, the adjacent plurality of arc segments 21 are connected end to end, and the adjacent arc segments 21 are connected. The plurality of straight line segments 22 are arranged at equal intervals around the outer periphery of the axis of the gear body 1, the straight line segment 22 is connected to the corresponding arc segment 21, and the port of the end of the straight line segment 22 away from the corresponding arc segment 21 is formed on the tooth surface 11.

[0023] During the operation of the helical gear, the cooling liquid sprayed on the gear body 1 enters the arc segment 21 through the straight line segment 22 and flows out from the lowermost straight line segment 22 along the arc segment 21, realizing the circulation of the cooling liquid inside and outside the gear body 1, and being beneficial to improving the heat dissipation efficiency.

[0024] See Figure 1 and Figure 2 , a plurality of installation grooves 12 are formed on the gear body 1, the positions and the number of the installation grooves 12 correspond to the positions and the number of the straight line segments 22 one by one, the extension direction of the installation groove 12 is parallel to the axis direction of the gear body 1, the middle part of the installation groove 12 is connected to the corresponding straight line segment 22, and the plurality of installation grooves 12 are located on the side of the arc segment 21 away from the axis of the gear body 1.

[0025] See Figure 1 and Figure 3The gear body 1 is slidably connected with a plurality of plugs 3, the positions and the number of the plugs 3 correspond to the positions and the number of the straight line segments 22, the positions and the number of the plugs 3 correspond to the positions and the number of the installation grooves 12, the plugs 3 slide in the installation grooves 12, the plugs 3 slide into or out of the straight line segments 22, and the plugs 3 are used for plugging the straight line segments 22. The gear body 1 is provided with a driving member 4 for driving the plugs 3 to move, the driving member 4 comprises a plurality of thermal expansion blocks 41, the positions and the number of the thermal expansion blocks 41 correspond to the positions and the number of the installation grooves 12, and the installation grooves 12 are used for clamping the corresponding thermal expansion blocks 41. The thermal expansion block 41 comprises an installation portion 411 and an expansion portion 412, the installation portion 411 is threadedly connected with the inner wall of the corresponding installation groove 12, the installation portion 411 is fixedly connected with the gear body 1 through the thread cooperation between the installation portion 411 and the inner wall of the installation groove 12, the installation portion 411 covers the slot of the installation groove 12, the expansion portion 412 is located on the side of the installation portion 411 close to the corresponding straight line segment 22, the expansion portion 412 is located in the corresponding installation groove 12, and one end of the expansion portion 412 close to the installation portion 411 is fixed to the installation portion 411. One end of the expansion portion 412 away from the installation portion 411 is fixedly connected with a filter frame 5, the filter frame 5 is slidably connected with the gear body 1, the filter frame 5 is located in the installation groove 12, the filter frame 5 slides into or out of the straight line segment 22, and the filter frame 5 slides to cover the straight line segment 22 to filter the cooling liquid flowing through the straight line segment 22. The expansion portion 412 and the plug 3 are located on opposite sides of the filter frame 5, the plug 3 and the filter frame 5 are slidably connected, and the sliding direction of the plug 3 equivalent to the sliding frame is perpendicular to the extension direction of the installation groove 12. When the filter frame 5 covers the straight line segment 22, the plug 3 is located on the side of the straight line segment 22 away from the installation portion 411, and the plug 3 is connected with the expansion portion 412 through the filter frame 5.

[0026] During the operation of the helical gear, when the temperature of the helical gear rises, the expansion portion 412 is heated and expanded, so that the filter frame 5 and the plug 3 move away from the installation portion 411 and into the installation groove 12, the plug 3 moves away from the straight line segment 22, the filter frame 5 covers the straight line segment 22 to filter the cooling liquid entering the inside of the gear body 1, when the temperature of the gear body 1 returns to the normal working temperature, the expansion portion 412 is contracted, so that the filter frame 5 moves away from the straight line segment 22, and the plug 3 moves to plug the straight line segment, thereby reducing the entry of external dust into the straight line segment 22 or the accumulation of the external dust on the surface of the filter frame 5. The plug 3 and the filter frame 5 are slidably connected with the gear body 1.

[0027] Through the thread cooperation between the installation portion 411 and the gear body 1. When the installation portion 411, the expansion portion 412, the filter frame 5 or the plug 3 needs to be repaired, the installation portion 411 is rotated and taken out, so that the above-mentioned expansion portion 412, the filter frame 5 or the plug 3 can be taken out for repair.

[0028] The sliding groove 31 is provided on one end of the block 3 close to the filter frame 5, and extends through the block 3 along a direction perpendicular to the sliding direction of the block 3. The filter frame 5 is provided with a connecting head 51 on the end close to the block 3, and the connecting head 51 protrudes from the filter frame 5. The sliding groove 31 is used for clamping the connecting head 51, and the inner wall of the sliding groove 31 abuts against the end of the connecting head 51 close to the filter frame 5 to limit the position. The block 3 and the filter frame 5 are positioned by the friction between the connecting head 51 and the inner wall of the sliding groove 31. The inner wall of the mounting groove 12 abuts against the outer periphery of the block 3 and the filter frame 5 to limit the relative movement between the block 3 and the filter frame 5. When the block 3 blocks the straight section 22, the inner wall of the mounting groove 12 covers the opposite ends of the sliding groove 31.

[0029] When the mounting part 411, the expansion part 412, the filter frame 5 and the block 3 are taken out of the mounting groove 12, the filter frame 5 and the block 3 can be separated conveniently.

[0030] The implementation principle of the helical gear for the gear box is as follows: in actual use, the filter frame 5 and the block 3 are driven to move by the thermal expansion and cold shrink block 41, so that the block 3 can be driven to open the flow channel 2 when the helical gear is overheated, and the cooling liquid can cool the inside and outside of the gear body 1, which is beneficial to improve the heat dissipation efficiency.

[0031] The above embodiment is only one of the preferable embodiments of the present application, and does not limit the implementation range of the present application. Therefore, equivalent changes made according to the shape, structure and principle of the present application should be covered in the protection range of the present application.

Claims

1. A helical gear for a gearbox, characterized in that: Includes a gear body (1), the gear body (1) is provided with a tooth surface (11), the gear body (1) is provided with a flow channel (2), the flow channel (2) is provided for coolant to enter, and the port of the flow channel (2) is opened on the tooth surface (11).

2. A helical gear for a gearbox according to claim 1, characterized in that: A plurality of blocking blocks (3) are slidably connected to the gear body (1), and the plurality of blocking blocks (3) are used to slide and block the flow channel (2). A driving member (4) is provided on the gear body (1), and the driving member (4) drives the blocking blocks (3) to move.

3. A helical gear for a gearbox according to claim 2, characterized in that: The driving component (4) consists of several thermal expansion and contraction blocks (41). The thermal expansion and contraction blocks (41) are correspondingly arranged with the blocking block (3). The thermal expansion and contraction blocks (41) are fixed to the gear body (1). The thermal expansion and contraction blocks (41) are connected to the blocking block (3). The sliding direction of the blocking block (3) is parallel to the axis of the gear body (1). The thermal expansion and contraction blocks (41) expand under heat, driving the blocking block (3) to open the flow channel (2).

4. A helical gear for a gearbox according to claim 3, characterized in that: The block (3) is provided with a filter frame (5). The distribution direction of the filter frame (5) and the block (3) is parallel to the sliding direction of the block (3). The filter frame (5) is located between the block (3) and the thermal expansion and contraction block (41). The block (3) is connected to the thermal expansion and contraction block (41) through the filter frame (5). The filter frame (5) is used to filter coolant.

5. A helical gear for a gearbox according to claim 4, characterized in that: The gear body (1) has several mounting grooves (12) for the thermal expansion and contraction blocks (41) to be inserted into. The middle part of the mounting groove (12) is connected to the flow channel (2). The thermal expansion and contraction block (41) includes a mounting part (411) that is threaded to the inner wall of the mounting groove (12) and an expansion part (412) that is connected to the mounting part (411). The expansion part (412) is connected to the block (3). The expansion part (412) is located in the mounting groove (12). The inner wall of the mounting groove (12) is in contact with the block (3).

6. A helical gear for a gearbox according to claim 5, characterized in that: The block (3) is provided with a sliding groove (31), which extends through the block (3) in a direction perpendicular to the mounting groove (12). The sliding groove (31) is used for the filter frame (5) to be inserted and limited. The inner wall of the mounting groove (12) covers both ends of the sliding groove (31).

7. A helical gear for a gearbox according to claim 1, characterized in that: The flow channel (2) is provided in a plurality of manners, and the plurality of flow channels (2) are arranged around the outer periphery of the axis of the gear body (1).

8. A helical gear for a gearbox according to claim 7, characterized in that: The flow channel (2) includes an arc segment (21) and a straight segment (22). Several arc segments (21) are connected end to end. The straight segments (22) are arranged at equal intervals around the outer periphery of the gear body (1) axis. The straight segments (22) are connected to the arc segments (21).

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