CN202884441U - Automatic lubrication device for small-power coal mining machine walking axle - Google Patents
Automatic lubrication device for small-power coal mining machine walking axle Download PDFInfo
- Publication number
- CN202884441U CN202884441U CN 201220552868 CN201220552868U CN202884441U CN 202884441 U CN202884441 U CN 202884441U CN 201220552868 CN201220552868 CN 201220552868 CN 201220552868 U CN201220552868 U CN 201220552868U CN 202884441 U CN202884441 U CN 202884441U
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- walking wheel
- road wheel
- wheel shaft
- piston
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Abstract
The utility model discloses an automatic lubrication device for a small-power coal mining machine walking axle. The automatic lubrication device comprise a walking wheel axle, the middle of the walking wheel axle is of a hollow structure, one end of the hollow structure of the walking wheel axle is sealed by an oil cup, the other end of the walking wheel axle is sealed by a piston, a plurality of grooves are arranged on the walking wheel axle, and a plurality of holes connected with the hollow structure between the oil cup and the piston are arranged on the walking wheel axle. The automatic lubrication device can store part of lubrication oil, can timely and automatically press lubrication liquid into a slide friction pair between a feeding shaft and a gear, prolongs service life of a coal mining machine walking wheel axle sleeve, improves startup rate of a coal mining machine and is suitable for between a small-power coal mining machine walking wheel pin shaft and a walking wheel.
Description
Technical field
The utility model relates to a kind of automatic lubricator, especially a kind of small-power type on shearer walk gear automatic lubricator.
Background technique
Walking wheel of coal cutter is the idle pulley structure, and core need install bearing additional.The number of teeth of the road wheel of high-power coal cutter is usually greater than 9, and this position can be rolling bearing.And the number of teeth of small-power coal winning machine cycloid road wheel is during less than 9, owing to be subjected to the restriction of physical dimension, and can only be with sliding bearing and axle sleeve structure.
Axle sleeve adopts steel bushing or copper sheathing structure usually.The hardness of steel bushing is suitable with the hardness of axle, and is namely very stiff and demanding to the mill form.In actual use, find that this mode is quite high to the requirement of lubricating condition, if grinding of axle and axle sleeve will occur in lubricated can not meeting the demands, the pernicious fault that can not rotate, and the processing of fault is also difficult; After steel bushing changed into copper sheathing, form soft to hard to the mill form, like this when friction can not form effective oil film, can make copper sheathing produce fretting wear, more and more serious along with copper sheathing wearing and tearing, can cause the damage of correlated parts, therefore need to change copper sheathing, so also can bring very large maintenance workload.
The model utility content
Technical problem to be solved in the utility model provides a kind of service time that can prolong the walking wheel of coal cutter axle sleeve, improves the small-power type on shearer walk gear automatic lubricator of coal winning machine Homes Using TV.
In order to solve the problems of the technologies described above, the utility model comprises the road wheel wheel shaft, the middle part of described road wheel wheel shaft is hollow structure, one end of described road wheel wheel shaft hollow structure arranges the lubricating cup sealing, the other end is by piston seal, offer a plurality of grooves on the described road wheel wheel shaft, described road wheel wheel shaft is provided with a plurality of holes that are communicated with described hollow structure and described groove.
Described piston is fixed in the described road wheel wheel shaft by plug screw, between described plug screw and the described piston spring is installed, and is provided with O-ring seals between the inwall of the outer wall of described piston and described road wheel wheel shaft.
Described spring is the prestressing force that initial position has 39N, and maximum spring force is the spring of 52N.
Described piston diameter size is
Described road wheel wheel shaft is provided with four described grooves and four described holes.
Adopt technique scheme, the utlity model has following advantage:
1, because this device can self oiling, and can guarantee that Lubricants has certain pressure so the lubricating condition between road wheel steel bushing and the axle is guaranteed.
2, between centers hollow can the storage area Lubricants, so do not need the underground labour to carry out oiling every day, has saved the repair time and has saved the labour force.
In sum, this device can storage compartment lubricant oil, and in time automatically to being pressed into Lubricants between the sliding friction pair between axle and gear, has the service time that prolongs the walking wheel of coal cutter axle sleeve, improve the coal winning machine Homes Using TV, be applicable to the lubricating fitting between small-power walking wheel of coal cutter bearing pin and the road wheel.
Description of drawings
Fig. 1 is road wheel wheel shaft assembling of the present invention;
Fig. 2 is the oilhole sectional view of road wheel wheel shaft among Fig. 1;
Among Fig. 1,2: 1. lubricating cup; 2. road wheel wheel shaft; 3. piston; 4.O shape seal ring; 5. spring; 6. plug screw.
Embodiment
Below in conjunction with accompanying drawing the utility model is elaborated.
As shown in Figure 1 and Figure 2, this device comprises lubricating cup 1, road wheel wheel shaft 2, piston 3, O-ring seals 4, spring 5, plug screw 6.It is the hard friction of steel and steel that road wheel and between centers still adopt the steel bushing form of sliding friction.Steel bushing adopts cooperating of pine with between centers, in order to form lubricant film.Road wheel wheel shaft 2 is made the structure of hollow, be used for storing Lubricants, one end of road wheel wheel shaft 2 hollow structures arranges a lubricating cup 1, the other end is comprised of piston 3, spring 5, O-ring seals 4 and plug screw 6, lubricating cup 1 adopts the lubricating cup of standard, play the effect of one-way valve, grease gun injects Lubricants by this lubricating cup 1, and spring 5 adopts cross section diameter
Spring, initial position makes spring have the prestressing force of 39N, maximum spring force is 52N, at piston 3 diameters is
Can guarantee that Lubricants has the pressure of 0.035Mp-0.045MP.The surface of axle has four grooves, and groove is communicated with the central lubrication liquid position of axle by four holes.Utilize high-pressure oil gun to inject lubricant oil in from lubricating cup to axle, when pressure surpasses spring force, spring-compressed, piston moves right, and the Lubricants oil pocket increases, and when reaching setting pressure, stops oiling.During work, under spring-force driven dual, piston is moved to the left, so that Lubricants can enter into friction surface automatically.Contacting two ends and need install O-ring seals additional to prevent the leakage of Lubricants at road wheel wheel shaft and steel bushing.
Claims (5)
1. small-power type on shearer walk gear automatic lubricator, comprise the road wheel wheel shaft, it is characterized in that: the middle part of described road wheel wheel shaft is hollow structure, one end of described road wheel wheel shaft hollow structure arranges the lubricating cup sealing, the other end is by piston seal, offer a plurality of grooves on the described road wheel wheel shaft, described road wheel wheel shaft is provided with a plurality of holes that are communicated with described hollow structure and described groove.
2. small-power type on shearer walk gear automatic lubricator according to claim 1, it is characterized in that: described piston is fixed in the described road wheel wheel shaft by plug screw, between described plug screw and the described piston spring is installed, is provided with O-ring seals between the inwall of the outer wall of described piston and described road wheel wheel shaft.
3. small-power type on shearer walk gear automatic lubricator according to claim 2, it is characterized in that: described spring is the prestressing force that initial position has 39N, maximum spring force is the spring of 52N.
4. small-power type on shearer walk gear automatic lubricator according to claim 3, it is characterized in that: described piston diameter size is
5. small-power type on shearer walk gear automatic lubricator according to claim 1, it is characterized in that: described road wheel wheel shaft is provided with four described grooves and four described holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220552868 CN202884441U (en) | 2012-10-25 | 2012-10-25 | Automatic lubrication device for small-power coal mining machine walking axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220552868 CN202884441U (en) | 2012-10-25 | 2012-10-25 | Automatic lubrication device for small-power coal mining machine walking axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202884441U true CN202884441U (en) | 2013-04-17 |
Family
ID=48075870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220552868 Expired - Fee Related CN202884441U (en) | 2012-10-25 | 2012-10-25 | Automatic lubrication device for small-power coal mining machine walking axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202884441U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275469A (en) * | 2015-11-23 | 2016-01-27 | 无锡巨通矿山机械有限公司 | Rolling supporting shoe of coal cutter |
| CN110296216A (en) * | 2019-07-29 | 2019-10-01 | 天地科技股份有限公司上海分公司 | Drain oil anti-vibration sealing device and sealing structure |
| CN115198833A (en) * | 2022-07-28 | 2022-10-18 | 龙工(上海)机械制造有限公司 | Loader pin shaft pair capable of self-lubricating |
| CN117232711A (en) * | 2023-11-14 | 2023-12-15 | 山西省长治经坊煤业有限公司 | Coal-winning machine pull rod pretightning force detection device |
-
2012
- 2012-10-25 CN CN 201220552868 patent/CN202884441U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275469A (en) * | 2015-11-23 | 2016-01-27 | 无锡巨通矿山机械有限公司 | Rolling supporting shoe of coal cutter |
| CN110296216A (en) * | 2019-07-29 | 2019-10-01 | 天地科技股份有限公司上海分公司 | Drain oil anti-vibration sealing device and sealing structure |
| CN115198833A (en) * | 2022-07-28 | 2022-10-18 | 龙工(上海)机械制造有限公司 | Loader pin shaft pair capable of self-lubricating |
| CN115198833B (en) * | 2022-07-28 | 2024-03-26 | 龙工(上海)机械制造有限公司 | Loader pin shaft pair capable of self-lubricating |
| CN117232711A (en) * | 2023-11-14 | 2023-12-15 | 山西省长治经坊煤业有限公司 | Coal-winning machine pull rod pretightning force detection device |
| CN117232711B (en) * | 2023-11-14 | 2024-01-30 | 山西省长治经坊煤业有限公司 | Coal-winning machine pull rod pretightning force detection 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: 20130417 Termination date: 20151025 |
|
| EXPY | Termination of patent right or utility model |