CN202756553U - Chain tension mechanism of propelling system of down-the-hole drill - Google Patents
Chain tension mechanism of propelling system of down-the-hole drill Download PDFInfo
- Publication number
- CN202756553U CN202756553U CN 201220346496 CN201220346496U CN202756553U CN 202756553 U CN202756553 U CN 202756553U CN 201220346496 CN201220346496 CN 201220346496 CN 201220346496 U CN201220346496 U CN 201220346496U CN 202756553 U CN202756553 U CN 202756553U
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- chain
- oil cylinder
- hole drill
- propulsion system
- lubricating cup
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Abstract
The utility model belongs to the field of a propelling system and particularly relates to a chain tension mechanism of a propelling system of a down-the-hole drill. A first chain wheel and a second chain wheel are arranged on a guide rail of the propelling system, one of the first chain wheel and the second chain wheel is a driving wheel, one end of a chain is connected with a guide plate which is arranged on the guide rail, the chain is wound on the first chain wheel and the second chain wheel, the guide plate is also connected with a cylinder body of an oil cylinder, and a rod head of an oil cylinder piston rod of the oil cylinder is connected with the other end of the chain. When abrasion occurs in use, the tension degree of the chain and chain wheels is reduced, oil is charged into the oil cylinder, and the oil cylinder piston rod moves, so that chain can be driven to conduct motion conveniently, and the tension degree of the chain and the chain wheels is adjusted, so that loosing state of matching of the chain and the chain wheels is effectively avoided, and a condition of chain falling is overcome.
Description
Technical field
The utility model belongs to the propulsion system field, is specifically related to a kind of tensioning mechanism for down-the-hole drill propulsion system chain tension.
Background technique
Down-the-hole drill is equipment commonly used in the mine excavation engineering, its propulsion system comprises guide rail and is arranged on guide plate on the guide rail, power mechanism is arranged on the guide plate, the pto＝power take-off of power mechanism links to each other with drilling rod is coaxial, drive drilling rod when the pto＝power take-off of power mechanism rotates and do brill pick action, guide plate moves to finish along guide rail and advances and withdraw from action.
In the prior art, guide plate is driven by chain drive along the displacement action of guide rail, specifically just be arranged on the guide rail two sprocket wheels one of them for driving wheel, chain cooperates the formation chain drive with two sprocket wheels, the two ends of chain link to each other with guide plate, when drive sprocket rotated, chain was thereupon mobile, and it is mobile at guide rail to drive guide plate.
When just filling, the rate of tension of chain is suitable, through use after a while, owing to reasons such as wearing and tearing, rate of tension will reduce, the position of boring is different in addition, sometimes need the guide rail attitude is adjusted, such as: in propulsion system plumbness boring work, chain is in free hang, the sprocket wheel that the lower end of chain is mated is thrown off easily, thereby causes transmitting propelling force.
Summary of the invention
The purpose of this utility model provides a kind of down-the-hole drill propulsion system chain tensioning mechanism, avoids chain lax, guarantees the reliability of chain drive.
For achieving the above object, the utility model has adopted following technological scheme: the guide rail in propulsion system arranges the first sprocket wheel and the second sprocket wheel, one of them is driving wheel, winding links to each other with the guide plate that guide rail arranges with chain one end on the second sprocket wheel at the first sprocket wheel, guide plate also links to each other with the cylinder body of oil cylinder, and the bar head of the cylinder piston rod of oil cylinder links to each other with the other end of chain.
By such scheme as can be known, owing to use when wearing and tearing occurring, the rate of tension that chain and sprocket wheel cooperate reduces, this moment can be to the oil cylinder oiling, cylinder piston rod moves, and so just can drive easily chain action, make its with sprocket wheel between cooperate rate of tension adjusted, thereby effectively avoided cooperate the get loose state that occur of chain with sprocket wheel, overcome the generation of falling the chain situation.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is the tensioning mechanism partial enlarged drawing among Fig. 1.
Embodiment
A kind of down-the-hole drill propulsion system chain tensioning mechanism, guide rail in propulsion system arranges the first sprocket wheel 10 and the second sprocket wheel 60, one of them is driving wheel, chain 20 one ends of winding on the first sprocket wheel 10 and the second sprocket wheel 60 link to each other with the guide plate 50 that guide rail 40 arranges, guide plate 50 also links to each other with the cylinder body of oil cylinder 30, the bar head of the cylinder piston rod 31 of oil cylinder 30 links to each other with the other end of chain 20, as shown in Figures 1 and 2.
As further preferred version of the present utility model: as shown in Figure 3, the medium that adds in the described oil cylinder 30 is butter, and cylinder rod chamber arranges the first pouring orifice 32, and the first pouring orifice 32 upper joints the first lubricating cup 80.The mode of selecting the first lubricating cup 80 to annotate butter drives the action of cylinder piston rod 31, need not like this to be equipped with oil circuit and oil pump and tediously long oil pipe arranges, when needing the adjusting chain rate of tension, as long as screwing manually the first lubricating cup 80 can be to oil cylinder 30 interior oiling, namely in cylinder rod chamber during oiling, cylinder piston rod 31 is just to rodless cavity one side shifting, so just tensioning of chain.
Further: as shown in Figure 3, oil cylinder rodless cavity arranges the second pouring orifice 33, and the second pouring orifice 33 upper joints the second lubricating cup 90.When needing the adjusting chain rate of tension, can be to oil cylinder 30 interior oilings as long as screw manually the second lubricating cup 90, namely oil cylinder without rod chamber in during oiling, cylinder piston rod 31 is just to there being rodless cavity one side shifting, chain just relaxes like this.
Further: in order to ensure keeping of rate of tension; lubricating cup or the oil feed line between the first lubricating cup 80 and oil cylinder 30 that described the first lubricating cup 80 is arranged to carry one-way valve arrange one-way valve; the opening state of described one-way valve is the direction of the oiling in the oil cylinder 30; guarantee that butter can enter in the rod chamber of oil cylinder 30; and the butter in the rod chamber can not flow out; play the effect of back pressure or pressurize, realize keeping of rate of tension.
The utility model when needing tension chain 20, is directly screwed the first lubricating cup 80 and is injected butter to oil cylinder 30 in actual practical process, and cylinder piston rod 31 shrinks, thus chain 20 tensions.
Claims (4)
1. down-the-hole drill propulsion system chain tensioning mechanism, it is characterized in that: the guide rail in propulsion system arranges the first sprocket wheel (10) and the second sprocket wheel (60), one of them is driving wheel, chain (20) one ends of winding on the first sprocket wheel (10) and the second sprocket wheel (60) link to each other with the guide plate (50) that guide rail (40) arranges, guide plate (50) also links to each other with the cylinder body of oil cylinder (30), and the bar head of the cylinder piston rod (31) of oil cylinder (30) links to each other with the other end of chain (20).
2. down-the-hole drill propulsion system chain tensioning mechanism according to claim 1, it is characterized in that: the medium that adds in the described oil cylinder (30) is butter, cylinder rod chamber arranges the first pouring orifice (32), and the first pouring orifice (32) upper joint the first lubricating cup (80).
3. down-the-hole drill propulsion system chain tensioning mechanism according to claim 2, it is characterized in that: oil cylinder rodless cavity arranges the second pouring orifice (33), and the second pouring orifice (33) upper joint the second lubricating cup (90).
4. down-the-hole drill propulsion system chain tensioning mechanism according to claim 2, it is characterized in that: described the first lubricating cup (80) arranges one-way valve for carrying on the lubricating cup of one-way valve or the oil feed line between the first lubricating cup (80) and the oil cylinder (30), and the opening state of described one-way valve is the direction of the interior oiling of oil cylinder (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220346496 CN202756553U (en) | 2012-07-17 | 2012-07-17 | Chain tension mechanism of propelling system of down-the-hole drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220346496 CN202756553U (en) | 2012-07-17 | 2012-07-17 | Chain tension mechanism of propelling system of down-the-hole drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202756553U true CN202756553U (en) | 2013-02-27 |
Family
ID=47735737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220346496 Expired - Lifetime CN202756553U (en) | 2012-07-17 | 2012-07-17 | Chain tension mechanism of propelling system of down-the-hole drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202756553U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971429A (en) * | 2016-05-17 | 2016-09-28 | 刘燕燕 | Sliding device of sliding door |
| CN105971426A (en) * | 2016-05-17 | 2016-09-28 | 杨田花 | Sliding device with sealed guide rail |
| CN105971428A (en) * | 2016-05-17 | 2016-09-28 | 刘燕燕 | Novel sliding device with sealed guide rail |
| CN105971431A (en) * | 2016-05-17 | 2016-09-28 | 郫县欧西扣哇文具有限公司 | Pollutant intrusion prevention push-pull device with closed guide rail |
| CN105971427A (en) * | 2016-05-17 | 2016-09-28 | 杨田花 | Sliding device of sliding door for architectural decoration |
| CN106151422A (en) * | 2016-08-29 | 2016-11-23 | 福州天石源超硬材料工具有限公司 | The reciprocating motion type chain tensioning mechanism of rock drill |
-
2012
- 2012-07-17 CN CN 201220346496 patent/CN202756553U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971429A (en) * | 2016-05-17 | 2016-09-28 | 刘燕燕 | Sliding device of sliding door |
| CN105971426A (en) * | 2016-05-17 | 2016-09-28 | 杨田花 | Sliding device with sealed guide rail |
| CN105971428A (en) * | 2016-05-17 | 2016-09-28 | 刘燕燕 | Novel sliding device with sealed guide rail |
| CN105971431A (en) * | 2016-05-17 | 2016-09-28 | 郫县欧西扣哇文具有限公司 | Pollutant intrusion prevention push-pull device with closed guide rail |
| CN105971427A (en) * | 2016-05-17 | 2016-09-28 | 杨田花 | Sliding device of sliding door for architectural decoration |
| CN106151422A (en) * | 2016-08-29 | 2016-11-23 | 福州天石源超硬材料工具有限公司 | The reciprocating motion type chain tensioning mechanism of rock drill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130227 |
|
| CX01 | Expiry of patent term |