CN115875437A - Shield constructs two cooling device of speed reducer - Google Patents
Shield constructs two cooling device of speed reducer Download PDFInfo
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- CN115875437A CN115875437A CN202310034914.9A CN202310034914A CN115875437A CN 115875437 A CN115875437 A CN 115875437A CN 202310034914 A CN202310034914 A CN 202310034914A CN 115875437 A CN115875437 A CN 115875437A
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Abstract
The invention discloses a double cooling device of a shield speed reducer, belonging to the technical field of shield machine equipment and comprising a speed reducer, wherein the output end of the speed reducer is provided with a first cooling device, a middle box body of the speed reducer is provided with a second cooling device, and the first cooling device is communicated with the second cooling device; the first cooling device enables cooling liquid to circulate around the output end of the speed reducer in a spiral mode through the first spiral water cavity inside, the second cooling device enables the cooling liquid to circulate around the middle box body of the speed reducer in a spiral mode through the second spiral water cavity inside, and the circulation path is set to be spiral, so that the contact time between the cooling liquid and the speed reducer is prolonged, and the cooling effect is improved; the first cooling device is used for cooling the output end of the speed reducer, the second cooling device is used for cooling the middle box body of the speed reducer, the problem that the output end of the speed reducer and the middle box body are serious in heating is solved, and the overall cooling effect of the speed reducer is improved.
Description
Technical Field
The invention belongs to the technical field of shield machine equipment, and particularly relates to a double cooling device of a shield speed reducer.
Background
At present, a shield machine is taken as indispensable special equipment for large-scale tunnel excavation and is widely applied to tunnel engineering of subways, railways, highways, municipal pipe networks, river-crossing tunnels, hydropower and the like. The shield main reducer needs to provide a reliable cooling device for the shield main reducer due to the reasons of large working load, large heat productivity, limited heat dissipation space and the like.
The existing cooling device of the main speed reducer is divided into an externally-hung type, a single-cavity type and a multi-groove spiral type, wherein the spiral type cooling device has a good effect and is applied for a plurality of times. However, the cooling device of the current shield machine speed reducer is mainly applied to the input end, and in actual work, the output end of the speed reducer and the middle box body still have the heating problem, so that the transmission part is abraded and even damaged to different degrees. A plurality of rubber parts such as sealing rings and the like are also adopted in part of the cooling device for sealing, but the sealing performance is greatly influenced by the quality and the service life of the sealing rings; meanwhile, the cooling device lacks a dynamic circulation and dynamic flow process, so that the contact time and the contact area of lubricating oil and cooling liquid are reduced, and the cooling effect of the device is reduced.
Disclosure of Invention
The invention aims to provide a double cooling device of a shield speed reducer, which solves the problems that the output end of the speed reducer is lack of a cooling mechanism, the sealing ring in a water box of the shield speed reducer is too much, and the cooling device is lack of a dynamic circulation flowing process of lubricating oil in the prior art.
The utility model provides a shield constructs two cooling device of speed reducer, includes:
the output end of the speed reducer is provided with a first cooling device, a middle box body of the speed reducer is provided with a second cooling device, and the first cooling device is communicated with the second cooling device;
the first cooling device comprises a first spiral water cavity and a plurality of first circulating oil cylinders, the first spiral water cavity is annularly arranged at the periphery of the output end of the speed reducer, the first circulating oil cylinders penetrate through the cavity of the first spiral water cavity, one end of each first circulating oil cylinder is communicated with the inner box body of the speed reducer, and the other end of each first circulating oil cylinder is communicated with an oil cavity at the output end of the speed reducer;
the second cooling device comprises a second spiral water cavity and a plurality of second circulating oil cylinders, the second spiral water cavity and the second circulating oil cylinders are annularly arranged at the periphery of the middle box body of the speed reducer, the second circulating oil cylinders penetrate through the cavity of the second spiral water cavity, one end of each second circulating oil cylinder is communicated with the inner box body of the speed reducer, and the other end of each second circulating oil cylinder is communicated with an oil cavity of the middle box body of the speed reducer.
As a further scheme of the invention: the first spiral water cavity comprises a first annular cavity body and a first spiral partition plate, and a flow channel for spiral circulation of cooling liquid is formed in the first spiral water cavity through the first annular cavity body and the first spiral partition plate.
As a further scheme of the invention: a plurality of first circulating oil cylinders are uniformly arranged along the circumferential direction of the first annular cavity, and the first circulating oil cylinders penetrate through all the spiral surfaces of the first spiral partition plate.
As a further scheme of the invention: the second spiral water cavity comprises a second annular cavity and a second spiral clapboard, and the second spiral water cavity forms a flow channel for spiral circulation of lubricating oil through the second annular cavity and the second spiral clapboard.
As a further scheme of the invention: and the plurality of second circulating oil cylinders are uniformly arranged along the circumferential direction of the second annular cavity and penetrate through all the spiral surfaces of the second spiral partition plate.
As a further scheme of the invention: the first spiral partition plate and the second spiral partition plate respectively comprise N spiral surfaces, and N is more than or equal to 2.
As a further scheme of the invention: first spiral water cavity one end is provided with first water inlet and the other end is provided with first delivery port, second spiral water cavity one end is provided with the second water inlet and the other end is provided with the second delivery port, communicate through hose assembly between first delivery port and the second water inlet.
As a further scheme of the invention: the first circulating oil cylinder and the second circulating oil cylinder are respectively provided with M, and M is more than or equal to 4.
As a further scheme of the invention: the first cooling device and the second cooling device are connected with the speed reducer through welding.
Compared with the prior art, the invention has the beneficial effects that:
1. first cooling device makes the coolant liquid circulate with the spiral mode around the output of speed reducer through inside first spiral water cavity, and second cooling device makes the coolant liquid circulate with the spiral mode around the well box of speed reducer through inside second spiral water cavity, through setting up the circulation path into the spiral, has increased the contact time between coolant liquid and the speed reducer, has improved the cooling effect.
2. The first cooling device is used for cooling the output end of the speed reducer, and the second cooling device is used for cooling the middle box body of the speed reducer, so that the problem that the output end of the speed reducer and the middle box body part of the speed reducer are seriously heated is solved, and the integral cooling effect of the speed reducer is improved; first cooling device and second cooling device circulate each other, a set of coolant liquid circulation system of sharing, and a whole set of cooling device need not additionally set up the sealing washer and carries out static seal, has reduced the possibility of revealing.
3. First circulation oil section of thick bamboo and second circulation oil section of thick bamboo run through first spiral water cavity and second spiral water cavity respectively, the in-process of coolant liquid circulation in first spiral water cavity and second spiral water cavity, can contact all areas of first circulation oil section of thick bamboo and second circulation oil section of thick bamboo and cool off all contact surfaces, the contact cooling time of coolant liquid and lubricating oil has been increased, coolant liquid and lubricating oil all are in the state of circulating, make both can carry out dynamic cycle cooling, the cooling effect has been improved.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic overall structure diagram of a shield reducer double-cooling device;
FIG. 2 is a schematic structural view of a first spiral water chamber provided by the present invention;
FIG. 3 is a schematic structural view of a second spiral water chamber provided by the present invention;
fig. 4 is a schematic structural diagram of a first spiral partition provided by the present invention.
In the figure: 1. a speed reducer; 2. a first cooling device; 21. a first spiral water cavity; 211. a first annular cavity; 212. a first spiral partition plate; 213. a first water inlet; 214. a first water outlet; 22. a first circulating oil cylinder; 3. a second cooling device; 31. a spiral water cavity; 311. a second annular cavity; 312. a second spiral partition; 313. a second water inlet; 314. a second water outlet; 32. a second circulating oil cylinder; 4. a hose assembly.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, in the embodiment of the present invention, the reduction gear includes a reduction gear 1, an output end of the reduction gear 1 is provided with a first cooling device 2, a middle box of the reduction gear 1 is provided with a second cooling device 3, and the first cooling device 2 is communicated with the second cooling device 3.
The first cooling device 2 comprises a first spiral water cavity 21 and a plurality of first circulating oil cylinders 22, wherein the first spiral water cavity 21 and the first circulating oil cylinders are annularly arranged on the periphery of the output end of the speed reducer 1. The first spiral water cavity 21 integrally forms a spiral cavity, cooling liquid flows through the first spiral water cavity and flows in a spiral mode in a one-way mode, the flow path of the cooling liquid is lengthened, and the contact time between the cooling liquid and the water gate shell of the speed reducer 1 is prolonged; a plurality of first circulating oil cylinders 22 penetrate through the cavity of the first spiral water cavity 21, lubricating oil circulates inside the first spiral water cavity, an annular oil cavity is formed in the output end of the speed reducer 1 in the circumferential direction, one end of each first circulating oil cylinder 22 is communicated with the box body inside the speed reducer 1, and the other end of each first circulating oil cylinder 22 is communicated with the oil cavity at the output end of the speed reducer 1. The cooling liquid contacts with the first circulating oil cylinder 22 in the circulation process of the cooling liquid in the first spiral water cavity 21, and takes away the heat of the lubricating oil in the first circulating oil cylinder 22.
Through the arrangement, the first cooling device 2 is compact in structure, the size of the first cooling device 2 is reduced, the cooling efficiency is improved, and dynamic circulating cooling can be performed between the cooling liquid and the lubricating oil.
Similarly, the second cooling device 3 includes a second spiral water cavity 31 and a plurality of second circulating oil cylinders 32 annularly disposed at the periphery of the middle box body of the speed reducer 1. The second spiral water cavity 31 integrally forms a spiral cavity, and the first spiral water cavity 21 and the second spiral water cavity 31 are communicated with each other, so that the first spiral water cavity and the second spiral water cavity share one set of cooling liquid circulating system, and cooling liquid can circularly flow only through one set of driving mechanism. A plurality of second circulating oil cylinders 32 penetrate through the cavity of the second spiral water cavity 31, one end of each second circulating oil cylinder 32 is communicated with the box body in the speed reducer 1, and the other end of each second circulating oil cylinder is communicated with the oil cavity of the box body in the speed reducer 1.
The cooling liquid firstly enters the first cooling device 2 to cool the output end of the speed reducer 1, flows into the second cooling device 3 after circulating through the first spiral water cavity 21, and cools the middle box body of the speed reducer 1, so that the overall cooling effect of the speed reducer 1 is improved.
The first cooling device 2 and the second cooling device 3 are connected with the speed reducer 1 through welding, have certain connection strength and can bear large water pressure impact; and the first cooling device 2 and the second cooling device 3 form a closed cavity by means of self structures, and the whole set of cooling device does not need to use a sealing ring to perform static sealing treatment, so that the sealing performance of the cooling device is ensured.
Referring to fig. 2 and 3, the first spiral water cavity 21 is integrally composed of a first annular cavity 211 and a first spiral partition 212, the first annular cavity 211 is formed by surrounding a tubular bearing seat arranged at the output end of the speed reducer 1 through an annular shell, and an annular cavity is formed inside the first annular cavity; the first spiral partition plate 212 is formed by winding a metal sheet, the first annular cavity 211 and the first spiral partition plate 212 are combined to form a flow channel for the unidirectional spiral circulation of the cooling liquid, the guiding and buffering effects are achieved, the circulation speed of the cooling liquid can be reduced, the circulation path of the cooling liquid can be increased, the contact time between the cooling liquid and the water gate shell of the speed reducer 1 and the first circulating oil cylinder 22 is further prolonged, and the situation that the cooling liquid cannot sufficiently take away heat due to the fact that the flow speed of the cooling liquid is too high is avoided.
A plurality of first circulation oil section of thick bamboo 22 evenly arrange along the circumference of first annular cavity 211, because first circulation oil section of thick bamboo 22 blocks on the circulation route of coolant liquid, if first circulation oil section of thick bamboo 22 set up inhomogeneously, probably lead to the circulation speed of the whole flow section of coolant liquid to differ, reduced the even degree of contact of coolant liquid with speed reducer 1 and first circulation oil section of thick bamboo 22, and then reduced the even degree of cooling.
The first circulating oil cylinder 22 penetrates all the spiral surfaces of the first spiral partition 212, and the contact area between the cooling liquid and the first circulating oil cylinder 22 is ensured. The surface of the first spiral partition plate 212 is provided with a plurality of mounting holes for assembling the first circulating oil cylinder 22, and the first circulating oil cylinder 22 penetrates through the first spiral partition plate 212 to communicate an annular oil cavity at the output end of the speed reducer 1 with the internal box body for circulating lubricating oil. When the first circulating oil cylinder 22 is installed, the side wall of the first circulating oil cylinder 22 and the inner wall of the first annular cavity 211 need to be spaced by a certain distance so that the cooling liquid can be in full contact with the first circulating oil cylinder 22.
Similarly, since the internal structure of the second cooling device 3 is similar to that of the first cooling device 2, the detailed structure and implementation effect of the second cooling device 3 will not be described herein.
Further, one end of the first spiral water cavity 21 is provided with a first water inlet 213 and the other end is provided with a first water outlet 214, one end of the second spiral water cavity 31 is provided with a second water inlet 313 and the other end is provided with a second water outlet 314, and the first water outlet 214 is communicated with the second water inlet 313 through the hose assembly 4. The cooling liquid firstly enters from the first water inlet 213, flows out from the first water outlet 214 after passing through the first spiral water cavity 21, flows to the second water inlet 313 through the external pipeline, passes through the second spiral water cavity 31, and finally flows out from the second water outlet 314. The first cooling device 2 and the second cooling device 3 are communicated with each other and share a set of cooling liquid circulating system, so that the conveying structure of cooling liquid is simplified, and the conveying efficiency is improved; the cooling liquid can contact with all the first circulating oil cylinders 22 and the second circulating oil cylinders 32 on the road section through the path and is cooled, and the path is a one-way flow, so that the cooling structure is simple and compact, and the interaction area between the cooling liquid and the lubricating oil is ensured.
Furthermore, referring to fig. 1, the first water outlet 214 and the second water inlet 313 are communicated through a hose assembly 4, and the hose connection can ensure that the first cooling device 2 and the second cooling device 3 can be assembled normally when the positions and angles of the holes are deviated during the installation process.
Specifically, referring to fig. 2 and 4, the first spiral partition 212 and the second spiral partition 312 each include N spiral surfaces, where N is greater than or equal to 2, and the first spiral partition 212 and the second spiral partition 312 need to have a certain number of spiral surfaces to ensure a sufficiently long spiral flow path for the coolant to flow through, so as to increase the contact time between the coolant and the first circulating oil cylinder 22 and the second circulating oil cylinder 32, so that the dynamic heat exchange between the coolant and the lubricating oil is more sufficient.
In addition, the first circulating oil cylinder 22 and the second circulating oil cylinder 32 are respectively provided with M, M is more than or equal to 4, the interaction area between the cooling liquid and the lubricating oil is increased by ensuring the number of the first circulating oil cylinder 22 and the second circulating oil cylinder 32, the circulation amount of the lubricating oil can be increased, and the heat exchange between the cooling liquid and the lubricating oil is in a balanced state as far as possible.
When the lubricating oil enters the first spiral water cavity 21 through the first circulating oil cylinder 22, the highest point of the lubricating oil is 1/3-2/3 of the first spiral water cavity 21, and the first circulating oil cylinder 22 on the upper portion enables pressure balance to be kept between the first spiral water cavity 21 and the inner box body of the speed reducer 1, so that dynamic circulating backflow of the lubricating oil is guaranteed. Similarly, the second circulating oil cylinder 32 and the first circulating oil cylinder 22 are similar in structure and arrangement and are not described in detail herein.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (9)
1. The utility model provides a shield constructs two cooling device of speed reducer which characterized in that includes:
the cooling device comprises a speed reducer (1), wherein a first cooling device (2) is arranged at the output end of the speed reducer (1), a second cooling device (3) is arranged in a middle box body of the speed reducer (1), and the first cooling device (2) is communicated with the second cooling device (3);
the first cooling device (2) comprises a first spiral water cavity (21) and a plurality of first circulating oil cylinders (22) which are annularly arranged at the periphery of the output end of the speed reducer (1), the plurality of first circulating oil cylinders (22) penetrate through the cavity of the first spiral water cavity (21), one end of each first circulating oil cylinder (22) is communicated with the inner box body of the speed reducer (1), and the other end of each first circulating oil cylinder is communicated with an oil cavity at the output end of the speed reducer (1);
the second cooling device (3) comprises a second spiral water cavity (31) and a plurality of second circulating oil cylinders (32) which are annularly arranged at the periphery of the box body in the speed reducer (1), the second circulating oil cylinders (32) penetrate through the cavity of the second spiral water cavity (31), one end of each second circulating oil cylinder (32) is communicated with the box body in the speed reducer (1) and the oil cavity of the box body in the speed reducer (1) is communicated with the other end of the second circulating oil cylinder (32).
2. The double cooling device of the shield speed reducer according to claim 1, wherein the first spiral water cavity (21) includes a first annular cavity (211) and a first spiral partition plate (212), and the first spiral water cavity (21) forms a flow channel for spiral circulation of a cooling liquid through the first annular cavity (211) and the first spiral partition plate (212).
3. The double cooling device of the shield speed reducer according to claim 2, wherein a plurality of first circulating oil cylinders (22) are uniformly arranged along the circumferential direction of the first annular cavity (211), and the first circulating oil cylinders (22) penetrate through all the spiral surfaces of the first spiral partition plate (212).
4. The double cooling device of the shield speed reducer according to claim 3, wherein the second spiral water cavity (31) comprises a second annular cavity (311) and a second spiral partition plate (312), and the second spiral water cavity (31) forms a flow passage for spiral circulation of lubricating oil through the second annular cavity (311) and the second spiral partition plate (312).
5. The double cooling device of the shield speed reducer according to claim 4, wherein a plurality of the second circulating oil cylinders (32) are uniformly arranged along the circumferential direction of the second annular cavity (311), and the second circulating oil cylinders (32) penetrate through all the helicoids of the second spiral partition (312).
6. The double cooling device of the shield speed reducer as claimed in claim 5, wherein the first spiral partition (212) and the second spiral partition (312) both comprise N spiral surfaces, and N is greater than or equal to 2.
7. The double cooling device of the shield speed reducer according to claim 1, wherein a first water inlet (213) is formed at one end of the first spiral water cavity (21) and a first water outlet (214) is formed at the other end of the first spiral water cavity, a second water inlet (313) is formed at one end of the second spiral water cavity (31) and a second water outlet (314) is formed at the other end of the second spiral water cavity, and the first water outlet (214) is communicated with the second water inlet (313) through a hose assembly (4).
8. The double cooling device of the shield speed reducer according to claim 1, wherein M circulating oil cylinders (22) and M not less than 4 are arranged in each of the first circulating oil cylinder (22) and the second circulating oil cylinder (32).
9. The double cooling device of the shield speed reducer according to claim 1, wherein the first cooling device (2) and the second cooling device (3) are connected with the speed reducer (1) by welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310034914.9A CN115875437A (en) | 2023-01-10 | 2023-01-10 | Shield constructs two cooling device of speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310034914.9A CN115875437A (en) | 2023-01-10 | 2023-01-10 | Shield constructs two cooling device of speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115875437A true CN115875437A (en) | 2023-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310034914.9A Pending CN115875437A (en) | 2023-01-10 | 2023-01-10 | Shield constructs two cooling device of speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115875437A (en) |
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2023
- 2023-01-10 CN CN202310034914.9A patent/CN115875437A/en active Pending
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