Speed reducer for photo-thermal power generation

Abstract

The utility model relates to the technical field of speed reducers, in particular to a speed reducer for photo-thermal power generation, which comprises a box cover, a box body, a speed reducing mechanism arranged in the box body, a heat collecting box and a threaded conveying rod, a flow channel is formed in the bottom wall of the box body; cold liquid is contained in the heat collection box. The inner side space of the heat collection box is closed and is divided into a confluence bin and a diversion bin; the confluence bin is communicated with the diversion bin through a flow channel; the threaded conveying rod is arranged between the confluence bin and the flow dividing bin, one end of the threaded conveying rod is connected with the speed reducing mechanism so as to drive cold liquid in the confluence bin to flow to the confluence bin, heat generated when the speed reducer works can be concentrated and then dissipated, the heat dissipation effect is improved, and the working performance of the speed reducer is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, and specifically relates to a reducer for solar thermal power generation. Background Art

[0002] A worm gear reducer is a power transmission mechanism that uses a gear speed converter to reduce the rotational speed of an electric motor to the desired speed, thereby generating a high torque. Reducers are widely used in mechanisms that transmit power and motion. They can be found in the transmission systems of various machines, from ships, automobiles, and motorcycles, to heavy construction machinery, processing equipment and automated production equipment used in the mechanical industry, to everyday household appliances and clocks. They are used in applications ranging from high-power transmission to small loads and precise angular transmission. In industrial applications, reducers can both reduce speed and increase torque. Therefore, they are widely used in speed-torque conversion equipment, such as photovoltaic power generation equipment. In the prior art, for example, a Chinese patent for a worm gear reducer for photovoltaic equipment, with announcement number CN218408463U, solves the problem that the viscosity of the lubricating oil inside the reducer may continue to increase due to the spread of photovoltaic heat, thereby affecting the lubrication effect by arranging a cooling fan on the top of the worm gear reducer. However, a disadvantage is that the heat is dispersed inside the reducer when the reducer is working. Arranging a cooling fan on the top of the reducer to dissipate heat will result in a weak heat dissipation effect, and in severe cases, it may even affect the working performance of the reducer. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a reducer for solar thermal power generation, which can concentrate the heat generated by the reducer during operation and then dissipate it, thereby improving the heat dissipation effect and ensuring the working performance of the reducer.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reducer for solar thermal power generation, comprising a box cover, a box body and a reduction mechanism arranged in the box body, the reducer also comprising a heat collecting box and a threaded conveying rod; a flow channel is opened inside the bottom wall of the box body; the heat collecting box is filled with cold liquid; the inner space of the heat collecting box is closed and divided into a confluence bin and a diversion bin; the confluence bin and the diversion bin are connected through a flow channel; the threaded conveying rod is arranged between the confluence bin and the diversion bin and one end of the threaded conveying rod is connected to the reduction mechanism to drive the cold liquid in the confluence bin to flow to the confluence bin.

[0005] Preferably, it further includes a spacer block, which is arranged between the confluence bin and the diversion bin; the spacer block is provided with a through hole for connecting the confluence bin and the diversion bin; and the threaded conveying rod is arranged to pass through the through hole.

[0006] Preferably, the threaded conveying rod includes a connecting shaft and a spiral blade; the spiral blade is arranged on the outer periphery of the connecting shaft and located inside the through hole; one end of the connecting shaft is connected to the speed reduction mechanism, and the other end is rotatably connected to the inner wall of the heat collecting box.

[0007] Preferably, the reduction mechanism includes a worm wheel, a worm, a large gear, a pinion, an input shaft and an output shaft. The worm wheel and the worm are meshed and matched and arranged inside the housing. The large gear is fixedly sleeved at the rear end of the worm and the large gear is meshed with the pinion. The front end of the input shaft is fixedly connected to the axis of the pinion and the rear end extends outside the housing. The output shaft is fixedly connected to the axis of the worm wheel; and the connecting shaft is fixedly connected to the axis of the pinion.

[0008] Preferably, the volume of the confluence chamber is greater than that of the diversion chamber.

[0009] Preferably, a heat dissipation fin group is provided on the outside of the box body; the heat dissipation fin group corresponds to the position of the heat collecting box.

[0010] Preferably, the flow channel is a U-shaped structure or a serpentine structure.

[0011] Preferably, the outer diameter of the spiral blade is adapted to the inner diameter of the through hole.

[0012] Preferably, a sealing groove is provided at the top port of the heat collecting box, a sealing strip is provided in the sealing groove, and the box cover is provided on the heat collecting box and is press-fitted with the sealing strip.

[0013] Preferably, the length of the heat dissipation fin group is adapted to the length of the heat collecting tank.

[0014] Compared with the existing technology, the beneficial effect of the present invention is: by opening a flow channel inside the bottom wall of the box, setting a confluence bin and a diversion bin on the inside of the box, the confluence bin and the diversion bin are connected through the flow channel, and spiral blades are set between the confluence bin and the diversion bin to promote the flow of liquid, so that when the reducer is working, its internal heat can be concentrated in the confluence bin and the diversion bin for centralized heat dissipation, which can improve the heat dissipation efficiency of the reducer while ensuring the stability of the reducer's operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of embodiment 1 of the present utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the bottom wall of the box body of the present invention;

[0017] Figure 3 For the utility model Figure 1 Schematic diagram of the cross section along the AA direction.

[0018] In the figure: 1 box body, 2 reduction mechanism, 3 heat collecting box, 4 spacer, 5 connecting shaft, 6 spiral blade, 11 outlet, 12 inlet, 13 heat dissipation fin group, 14 flow channel, 21 worm gear, 22 worm, 23 large gear, 24 small gear, 25 input shaft, 31 sealing groove, 32 confluence chamber, 33 diversion chamber, 41 through hole. DETAILED DESCRIPTION

[0019] The following describes the specific embodiments of the present invention in detail in conjunction with the accompanying drawings so that those skilled in the art can more clearly understand how to practice the present invention. Although the present invention is described in conjunction with its preferred specific embodiments, these embodiments are only illustrative, not limiting, of the scope of the present invention.

[0020] Specific embodiment 1: Please refer to Figure 1-3 A reducer for solar thermal power generation, comprising: a box cover (not shown), a box body 1, a reduction mechanism 2, a heat collection component and a plurality of bearings. The box cover is arranged on the box body 1 to seal the inner cavity of the box body 1. The reduction mechanism 2 and the heat collection component are both arranged on the inner side of the box body 1. The heat collection component is used to collect the heat inside the box body 1 and the heat generated by the reduction mechanism 2 during operation and dissipate the heat in a centralized manner. The reducer has the advantages of good heat dissipation effect and stable working performance.

[0021] Specifically, the box body 1 has a horseshoe-shaped structure, and a flow channel 14 for heat collection is opened inside its bottom wall. The outlet 11 and the inlet 12 of the flow channel 14 are both located on the inner side of the box body 1; a heat dissipation fin group 13 is also provided at the right end of the box body 1.

[0022] In one embodiment, the flow channel 14 has a U-shaped structure; in order to improve the heat collection capacity, the flow channel 14 is not limited to the above-mentioned U-shaped structure, but can also be a serpentine structure. The length of the flow channel 14 is proportional to the heat collection capacity of the flow channel 14.

[0023] The reduction mechanism 2 includes a worm wheel 21, a worm 22, a large gear 23, a pinion 24, an input shaft 25 and an output shaft (not shown in the figure). The worm wheel 21 and the worm 22 are meshed and matched and arranged on the inner side of the housing 1. The large gear 23 is fixedly sleeved on the rear end of the worm 22 and the large gear 23 is meshed with the pinion 24. The front end of the input shaft 25 is fixedly connected to the axis of the pinion 24, and the rear end extends to the outside of the housing 1; the output shaft is fixedly connected to the axis of the worm wheel 21.

[0024] The heat collection assembly includes a heat collection box 3, a spacer 4, a connecting shaft 5 and a spiral blade 6. The heat collection box 3 is used to load the cooling liquid. The heat collection box 3 is arranged at the rear inside the box body 1 and corresponds to the position of the heat dissipation fin group 13. At the same time, the length of the heat dissipation fin group 13 is adapted to the length of the heat collection box 3. The outlet 11 and the inlet 12 of the flow channel 14 are both located inside the heat collection box 3. The spacer 4 is arranged inside the heat collection box 3 to divide the space inside the heat collection box 3 into two parts, namely, a confluence chamber 32 and a diversion chamber 33. The confluence chamber 32 is connected to the outlet 11, and the diversion chamber 33 is connected to the inlet 12.

[0025] The spacer 4 is provided with a through hole 41, and the through hole 41 is provided to enable the confluence bin 32 to be connected with the diversion bin 33; the connecting shaft 5 is arranged on the inner side of the heat collecting box 3 through a bearing, wherein the head end of the connecting shaft 5 is fixedly connected to the axis of the pinion 24, and the tail end is rotatably connected to the inner wall of the heat collecting box 3. At the same time, the connecting shaft 5 and the through hole 41 are coaxially arranged, and the spiral blade 6 is arranged on the outer periphery of the connecting shaft 5 and the spiral blade 6 is located on the inner side of the through hole 41; when the connecting shaft 5 is driven by an external motor, the connecting shaft 5 rotates synchronously while the reduction mechanism 2 is working, driving the spiral blade 6 to rotate, and the spiral blade 6 inputs the coolant in the confluence bin 32 into the diversion bin 33, so that the coolant can flow in the flow channel 14, collect the heat inside the box body 1 and the heat generated when the reduction mechanism 2 is working, and return to the confluence bin 32, completing a cycle. The heat of the reducer is concentrated in the heat collecting box 3 and dissipated outward through the heat dissipation fin group 13.

[0026] The head end of the connecting shaft 5 is fixedly connected to the axis of the pinion 24. When the reduction mechanism 2 is working, the input shaft 25 drives the pinion 24 to rotate, thereby driving the connecting shaft 5 to rotate synchronously; the spiral blade 6 generates axial thrust when rotating with the connecting shaft 5 in the through hole 41, forcing the coolant to flow from the confluence chamber 32 through the flow channel 14 to the diversion chamber 33, forming a forced circulation power.

[0027] The outer diameter of the spiral blade 6 is adapted to the inner diameter of the through hole 41 .

[0028] In one embodiment, a sealing groove 31 is further provided at the top end of the heat collecting box 3 , and a sealing strip is provided in the sealing groove 31 . When the box cover is placed on the box body 1 , the box cover squeezes the sealing strip to improve the sealing performance of the inner cavity of the heat collecting box 3 .

[0029] In one embodiment, the volume of the confluence chamber 32 is greater than the volume of the diversion chamber 33 , which can improve the heat collection and heat dissipation capabilities of the reducer.

[0030] Through this technical solution, a flow channel is opened inside the bottom wall of the box, a confluence bin and a diversion bin are set on the inside of the box, the confluence bin and the diversion bin are connected through the flow channel, and spiral blades for promoting the flow of liquid are set between the confluence bin and the diversion bin. When the reducer is working, its internal heat can be concentrated in the confluence bin and the diversion bin for centralized heat dissipation, which can improve the heat dissipation efficiency of the reducer while ensuring the stability of the reducer's operation.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A speed reducer for solar thermal power generation, comprising a box cover, a box body (1) and a speed reduction mechanism (2) arranged in the box body (1), characterized in that: The reducer further comprises a heat collecting box (3) and a threaded conveying rod; a flow channel (14) is provided inside the bottom wall of the box body (1); the heat collecting box (3) contains cold liquid; the inner space of the heat collecting box (3) is closed and divided into a confluence bin and a diversion bin; the confluence bin and the diversion bin are connected through the flow channel (14); the threaded conveying rod is provided between the confluence bin and the diversion bin, and one end of the threaded conveying rod is connected to the speed reducing mechanism (2) to drive the cold liquid in the confluence bin to flow to the confluence bin.

2. A reducer for solar thermal power generation according to claim 1, characterized in that: It also includes a spacer (4), which is arranged between the converging chamber and the diverting chamber; the spacer (4) is provided with a through hole for communicating the converging chamber and the diverting chamber; and the threaded conveying rod is arranged to pass through the through hole.

3. A reducer for solar thermal power generation according to claim 2, characterized in that: The threaded conveying rod comprises a connecting shaft (5) and a spiral blade (6); the spiral blade (6) is arranged on the outer periphery of the connecting shaft (5) and located inside the through hole; one end of the connecting shaft (5) is connected to the speed reduction mechanism (2), and the other end is rotatably connected to the inner wall of the heat collecting box (3).

4. A reducer for solar thermal power generation according to claim 3, characterized in that: The speed reduction mechanism (2) comprises a worm wheel, a worm, a large gear, a pinion, an input shaft and an output shaft. The worm wheel and the worm are meshed and matched and arranged inside the housing (1). The large gear is fixedly sleeved on the rear end of the worm and meshes with the small gear. The front end of the input shaft is fixedly connected to the axis of the small gear and the rear end extends to the outside of the housing (1); the output shaft is fixedly connected to the axis of the worm wheel; and the connecting shaft (5) is fixedly connected to the axis of the small gear.

5. The reducer for solar thermal power generation according to claim 1, characterized in that: The volume of the confluence chamber is greater than that of the diversion chamber.

6. The reducer for solar thermal power generation according to claim 1, characterized in that: A heat dissipation fin group (13) is provided on the outside of the box body (1); the heat dissipation fin group (13) corresponds to the position of the heat collecting box (3).

7. The reducer for solar thermal power generation according to claim 1, characterized in that: The flow channel (14) is a U-shaped structure or a serpentine structure.

8. The reducer for solar thermal power generation according to claim 3, characterized in that: The outer diameter of the spiral blade (6) is adapted to the inner diameter of the through hole.

9. The reducer for solar thermal power generation according to claim 1, characterized in that: A sealing groove (31) is provided at the top end of the heat collecting box (3), a sealing strip is provided in the sealing groove (31), and a box cover is provided on the heat collecting box (3) and is press-fitted with the sealing strip.

10. The reducer for solar thermal power generation according to claim 6, characterized in that: The length of the heat dissipation fin group (13) is adapted to the length of the heat collecting box (3).

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