CN203051721U - Cooling structure of rocker arm gear box of coal cutter - Google Patents
Cooling structure of rocker arm gear box of coal cutter Download PDFInfo
- Publication number
- CN203051721U CN203051721U CN 201220719213 CN201220719213U CN203051721U CN 203051721 U CN203051721 U CN 203051721U CN 201220719213 CN201220719213 CN 201220719213 CN 201220719213 U CN201220719213 U CN 201220719213U CN 203051721 U CN203051721 U CN 203051721U
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- CN
- China
- Prior art keywords
- cooling
- rocker arm
- gear box
- arm gear
- cooling pipes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a rocker arm gear box of a coal cutter, and provides a cooling structure of the rocker arm gear box of the coal cutter to solve the problem of cooling the rocker arm gear box of the coal cutter. A plurality of cooling pipes are symmetrically arranged on the upper wall and the lower wall inside an oil pool of the rocker arm gear box and comprise upper cooling pipes and lower cooling pipes, the lower cooling pipes are directly dipped into the bottom of the oil pool, the cooling pipes are seamless steel pipes and are combined with the rocker arm gear box into a whole in a plug welding mode, water in the upper cooling pipes is directly used for externally spraying mist after cooling a box body, the lower cooling pipes are dipped into the bottom of the oil pool and directly bring away the heat of liquid, and therefore the purpose of direct cooling is achieved. The cooling pipes are arranged symmetrically up and down, and enable a left rocker arm gear box and a right rocker arm gear box to be replaceable. The length and the number of the cooling pipes are increased, the cooling area is increased, the cooling effect is improved, and the defect of cooling of an external water tank is overcome. The cooling pipes inside the box body are increased to overcome the defect that the large-area water tank formed in the outer wall of the box body enables the outline size of the rocker arm gear box to be enlarged. The cooling pipes are seamless steel pipes, the length of a welding seam is shortened, and leakage is largely reduced.
Description
Technical field
The utility model relates to the technical field of rocker arm of coal mining machine gear-box, specifically is a kind of rocker arm of coal mining machine gear-box cooling structure.
Background technique
The cooling means of current rocker arm of coal mining machine gear-box has the outside tank cooling of rocker gear case and inside to install cooler respectively additional in high low speed chamber.The outside tank cooling method of rocker gear case is to drive bosh in rocker gear box outer wall large size, and after the liquid heat was derived by the casing heavy wall in the casing, cooling water was taken away the liquid heat.Because cooling water does not directly feed in the casing oil sump, thereby influences cooling effect; Used cover plate quantity is more, each cover plate and rocker gear box body assembly welding, and the weld seam area produces the seepage phenomenon greatly and easily, finally also can influence cooling effect; In order not influence the intensity of rocker gear case, usually the casing wall thickness is increased during design, boundary dimension strengthens, thereby has increased the weight of rocking arm casing, and the complete machine service behaviour also changes to some extent.
Rocker gear case inside is subjected to the restriction in space in the rocker gear box body in the type of cooling that high low speed chamber installs cooler respectively additional, can only install the cooler of certain boundary dimension in the outermost in high speed chamber and low speed chamber additional.The boundary dimension of cooler is little, and cooling tube is short, and heat diffusion area is little, thereby influences cooling effect.
Summary of the invention
The utility model provides a kind of rocker arm of coal mining machine gear-box cooling structure in order to solve the outside tank cooling of rocker arm of coal mining machine gear-box and the inner problem that installs the cooling effect of cooler difference in high low speed chamber respectively additional.
The utility model is to adopt following technological scheme to realize: a kind of rocker arm of coal mining machine gear-box cooling structure comprises and goes up some cooling tubes that lower wall is placed in the rocker gear case oil sump that be last cooling tube and following cooling tube, following cooling tube directly immerses the oil sump bottom.Last cooling tube and following cooling tube symmetry are placed.The outlet of last cooling tube connects outside spraying device.Cooling tube adopts seamless steel pipe, becomes one by plug welding and rocker gear case.Last cooling tube and following cooling tube respectively are 4.
Rocker arm of coal mining machine gear-box cooling structure of the present utility model is compared with prior art: respectively increase by four cooling tubes in rocker gear case oil sump on the lower wall, be directly used in external spraying behind the water cooling casing in the last cooling tube, following cooling tube immerses the oil sump bottom directly to be taken away the liquid heat, has reached direct cooling purpose; Symmetric arrangement makes left and right sides rocker gear case have interchangeability up and down; Cooling tube length and quantity increase, and make film-cooled heat increase several times, improve cooling effect, have overcome the deficiency of outside tank cooling; Increase cooling tube in the rocker gear case oil sump and overcome the shortcoming that rocker gear case boundary dimension is strengthened at cabinet exterior large size boiling water groove; Cooling tube adopts seamless steel pipe, becomes one by plug welding and rocker gear casing, reduces fusion length, has greatly reduced seepage.
Description of drawings
Fig. 1 is the utility model structural representation,
Fig. 2 is A-A view among Fig. 1.
Among the figure: 1-rocker gear case; The last cooling tube of 2-; Cooling tube under the 3-; 4-oil sump bottom.
Embodiment
As shown in Figure 1, a kind of rocker arm of coal mining machine gear-box cooling structure comprises each 4 cooling tube of going up the lower wall placement in rocker gear case 1 oil sump, is last cooling tube 2 and following cooling tube 3, its symmetry placement up and down.The outlet of last cooling tube 2 connects outside spraying device, and following cooling tube 3 directly immerses oil sump bottom 4, and cooling tube adopts seamless steel pipe, becomes one by plug welding and rocker gear case 1.
Be directly used in external spraying after going up the water cooling casing in the cooling tube in the rocker gear case oil sump, following cooling tube immerses the oil sump bottom directly to be taken away the liquid heat, has reached direct cooling purpose; Cooling tube is symmetric arrangement up and down, makes left and right sides rocker gear case have interchangeability; The increase of cooling tube length and quantity makes film-cooled heat increase several times, improves cooling effect, has overcome the deficiency of outside tank cooling; Cooling tube adopts seamless steel pipe, becomes one by plug welding and rocker gear casing, reduces fusion length, thereby has reduced seepage.
Claims (5)
1. a rocker arm of coal mining machine gear-box cooling structure is characterized in that: comprise and go up some cooling tubes that lower wall is placed in rocker gear case (1) oil sump that be last cooling tube (2) and following cooling tube (3), following cooling tube (3) directly immerses oil sump bottom (4).
2. a kind of rocker arm of coal mining machine gear-box cooling structure according to claim 1 is characterized in that: go up cooling tube (2) and following cooling tube (3) symmetry and place.
3. a kind of rocker arm of coal mining machine gear-box cooling structure according to claim 1 and 2 is characterized in that: the outlet of going up cooling tube (2) connects outside spraying device.
4. a kind of rocker arm of coal mining machine gear-box cooling structure according to claim 3 is characterized in that: cooling tube adopts seamless steel pipe, becomes one by plug welding and rocker gear case (1).
5. a kind of rocker arm of coal mining machine gear-box cooling structure according to claim 4 is characterized in that: go up cooling tube (2) and following cooling tube (3) and respectively be 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220719213 CN203051721U (en) | 2012-12-24 | 2012-12-24 | Cooling structure of rocker arm gear box of coal cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220719213 CN203051721U (en) | 2012-12-24 | 2012-12-24 | Cooling structure of rocker arm gear box of coal cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203051721U true CN203051721U (en) | 2013-07-10 |
Family
ID=48734675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220719213 Expired - Fee Related CN203051721U (en) | 2012-12-24 | 2012-12-24 | Cooling structure of rocker arm gear box of coal cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203051721U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464659A (en) * | 2015-12-23 | 2016-04-06 | 林州重机集团股份有限公司 | Coalcutter cutting part provided with cooling device |
-
2012
- 2012-12-24 CN CN 201220719213 patent/CN203051721U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464659A (en) * | 2015-12-23 | 2016-04-06 | 林州重机集团股份有限公司 | Coalcutter cutting part provided with cooling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20181224 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |