CN202370426U - Piston stroke fast adjusting device for hydraulic rock drill - Google Patents
Piston stroke fast adjusting device for hydraulic rock drill Download PDFInfo
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- CN202370426U CN202370426U CN2011205276221U CN201120527622U CN202370426U CN 202370426 U CN202370426 U CN 202370426U CN 2011205276221 U CN2011205276221 U CN 2011205276221U CN 201120527622 U CN201120527622 U CN 201120527622U CN 202370426 U CN202370426 U CN 202370426U
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- 239000011435 rock Substances 0.000 title abstract description 7
- 239000003921 oil Substances 0.000 description 57
- 238000005516 engineering process Methods 0.000 description 7
- 239000010720 hydraulic oil Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The utility model relates to a piston stroke fast adjusting device for a hydraulic rock drill, which comprises a cylinder body and a piston, wherein the piston is installed inside a main cavity body of the cylinder body. The piston stroke fast adjusting device further comprises a stroke adjusting plug and a reversing valve core, wherein a mounting hole for mounting the stroke adjusting plug and a cavity body for mounting the reversing valve core are arranged on one side of the cylinder body. According to the utility model, through the arrangement of the piston stroke adjusting device outside the machine and the change of the position of the stroke adjusting plug, the impact stroke of the piston is controlled, and the hydraulic rock drill can conveniently change the piston stroke when used for crushing rock of different types and characteristics as well as rock hole diameters, so as to achieve the optimal working efficiency and greatly improve the service performance of the machine.
Description
Technical field
The utility model relates to a kind of hydraulic gate, particularly a kind of hydraulic gate piston stroke fast adjuster.
Background technology
The manufacturing technology of external hydraulic gate is quite ripe; Like the Atlas-Copco company of Sweden, Sandvik company, Finland Tamrock company etc. all is to be devoted to hydraulic gate technical research and popularization always, and its technical level is represented the advanced level of the world today.Development at China's hydraulic gate is started late; Last century the eighties; Some types or technology from external introduction; Successively cooperate production hydraulic gate and supporting drill carriage thereof like Nanjing Engineering Machinery Plant, Shenyang Pneumatic Tools Factory, Tianshui Pneumatic Tools Plant with the Atlas-Copco company of Sweden.Xuanhua mining machinery factory, Shenyang nonferrous metallurgical equipment head factory, Lianhua Shan Mountain metallurgical machinery factory successively cooperates production hydraulic gate and supporting drill carriage thereof with French Secoma company.Owing to received the restriction of aspect conditions such as domestic raw material, technology, equipment and technology at that time, after product creates, still had a certain distance with international most advanced level.More distinct issues are that properties of product stability and reliability aspect remain further to be improved.Along with the fast development of mining industry and engineering construction industry, also increasingly high to the requirement of hydraulic gate functional performance.Usually mostly hydraulic gate piston stroke adjusting device structure is built-in and the structure more complicated, inconvenient when regulating in the service depot, is difficult to the operating efficiency that reaches best.
Summary of the invention
The purpose of the utility model is exactly the weak point in the background technology, and a kind of hydraulic gate piston stroke fast adjuster is provided.
For achieving the above object; The utility model adopts following technical scheme: hydraulic gate piston stroke fast adjuster; Comprise cylinder body and piston, piston is positioned in the main cavity of cylinder body, and it also comprises stroke adjustment plug, reversing valve core; Cylinder body one side is provided with and is used to the cavity the installing hole of stroke adjustment plug being installed and being used to install reversing valve core; The axis of the piston laterally and be provided with oiling groove A, oiling groove B, oiling groove C between the main cavity from left to right successively, reversing valve core axially is provided with first oil back chamber, oil suction chamber, second oil back chamber between the outside and the cavity from left to right successively, is provided with left oil pocket and right oil pocket on the reversing valve core lateral wall between the oil suction chamber both sides and first oil back chamber, second oil back chamber; Be provided with left oiling chamber between reversing valve core left end and the cavity; Be provided with right oiling chamber between its right-hand member and the cavity, be provided with a feedback oilhole, No. two feedback oilholes, No. three feedback oilholes between installing hole and the main cavity left side from left to right successively, left oiling chamber is communicated with a feedback oilhole through oil circuit in the cylinder body; Right oiling chamber is communicated with through No. two oil circuit oiling groove C; Oil suction chamber is communicated with oiling groove A through No. three oil circuits, and second oil back chamber is communicated with oiling groove B through No. four oil circuits, and said first oil back chamber is communicated with second oil back chamber through No. five oil circuits; The oiling chamber is communicated with the oiling oil circuit, and second oil back chamber is communicated with oil return circuit.
A kind of optimization for the utility model; Said stroke adjustment plug radial outside is provided with three groups of oil grooves; It is respectively a oil groove with a feedback oilhole, No. two feedback oilholes and the connection of No. three feedback oilholes; No. two feedback oilholes are fed back No. two oil grooves that oilhole is communicated with No. three, feed back No. three oil grooves that oilhole is communicated with No. three.
For a kind of optimization of the utility model, said stroke adjustment plug is a screw rod, and two groups of oil grooves radially are arranged at the not threaded bar portion of screw rod respectively, and the threaded end of screw rod passes installing hole and regulates nut outward with installing hole and be connected.
The utility model is compared with background technology; Have and guaranteed that hydraulic gate can change piston stroke easily when the different rock of fragmentation; Through the piston stroke adjusting device is set in machine exterior, come the control piston impact stroke through the position that changes the stroke adjustment plug, make hydraulic gate when the rock of broken variety classes, characteristic and petrosal foramen diameter, can change piston stroke easily; Reach best operating efficiency, thereby significantly improved the functional performance of machine.
Description of drawings
Fig. 1 is the structural representation of hydraulic gate piston stroke fast adjuster.
Fig. 2 is the structural representation of cylinder body.
Fig. 3 is through the sketch map of stroke adjustment plug with a feedback oilhole, No. two feedback oilholes and the connection of No. three feedback oilholes.
Fig. 4 is through the sketch map of stroke adjustment plug with No. two feedback oilholes and the connection of No. three feedback oilholes.
Fig. 5 is through the sketch map of stroke adjustment plug with a feedback oilhole, No. two feedback oilholes and No. three feedback oilhole complete closed.
Fig. 6 is the schematic cross-section of stroke adjustment plug.
The specific embodiment
Embodiment 1: with reference to Fig. 1～6.Hydraulic gate piston stroke fast adjuster; Comprise cylinder body 1 and piston 4; Piston 4 is positioned in the main cavity 1b of cylinder body 1; It also comprises stroke adjustment plug 2, reversing valve core 5, and cylinder body 1 one sides are provided with and are used to the cavity 1c that the installing hole 1a of stroke adjustment plug 2 is installed and is used to install reversing valve core 5, and piston 4 axially is provided with oiling groove A41, oiling groove B42, oiling groove C43 between the outside and the main cavity 1b from left to right successively; Reversing valve core 5 axially is provided with first oil back chamber 52, oil suction chamber 54, second oil back chamber 56 from left to right successively between the outside and the cavity 1c; Be provided with left oil pocket 53 and right oil pocket 55 between oil suction chamber 54 both sides and first oil back chamber 52, second oil back chamber 56 on reversing valve core 5 lateral walls, be provided with left oiling chamber 51 between reversing valve core 5 left ends and the cavity 1c, be provided with right oiling chamber 57 between its right-hand member and the cavity 1c; Be provided with feedback oilhole 10, No. two feedback oilholes 11, No. three feedback oilholes 12 between installing hole 1a and the main cavity 1b left side from left to right successively; Oiling chamber 51, a left side is communicated with a feedback oilhole 10 through cylinder body 1 an interior oil circuit 13, and right oiling chamber 57 is communicated with through No. two oil circuit 18 oiling groove C 43, and oil suction chamber 54 is communicated with oiling groove A 41 through No. three oil circuits 14; Second oil back chamber 56 is communicated with oiling groove B 42 through No. four oil circuits 19; Said first oil back chamber 52 is communicated with second oil back chamber 56 through No. five oil circuits 15, and oiling chamber 54 is communicated with oiling oil circuit 16, and second oil back chamber 56 is communicated with oil return circuit 17.Said stroke adjustment plug 2 radial outsides are milled with the oil groove that three group length do not wait vertically; Three groups of oil grooves are along circumference mutual deviation 120 degree; Said three groups of oil grooves are respectively with feedback oilhole 10, No. two feedback oilholes 11, a oil groove 21 that No. three feedback oilhole 12 is communicated with; No. two feedback oilholes 11 are fed back No. two oil grooves 22 that oilhole 12 is communicated with No. three, feed back No. three oil grooves 23 that oilhole 12 is communicated with No. three.Said stroke adjustment plug 2 is a screw rod, and two groups of oil grooves radially are arranged at the not threaded bar portion of screw rod 2 respectively, and screw rod 2 threaded ends pass installing hole 1a and regulate nut 3 outward with installing hole 1a and be connected.
Embodiment 2: with reference to Fig. 1～6.Hydraulic gate piston stroke fast adjuster operating principle: when the stroke adjustment plug be adjusted to oil groove 21 and respectively with feedback oilhole 10, No. two feedback oilholes 11, when No. three feedback oilholes 12 are interconnected; No. one feedback oilhole 10 communicates with the left side of reversing valve core 5 through an oil circuit 13; In case piston 4 backhauls; Left side convex shoulder is crossed feedback oilhole 10 No. one, and piston 4 ante-chamber hydraulic oils just act on the left side of reversing valve core 5, and reversing valve core 5 is under the effect of left side hydraulic oil; Rapidly by left dislocation to right position, piston 4 is commutated.Because feedback oilhole 10 is one of three feedback oilhole high order ends, so the stroke of piston 4 motions is the shortest in this case, output impact energy minimum and frequency is the highest.
When the stroke adjustment plug be adjusted to No. two oil grooves 22 and respectively with No. two feedback oilholes 11, when No. three feedback oilholes 12 are interconnected; No. one feedback oilhole 10 is closed, and piston 4 strokes are crossed a feedback oilhole 10 can not guide to the hydraulic oil of system the left side of reversing valve core 5, thereby can not cause reversing valve core 5 switching-overs; Have only when piston 4 is crossed No. two feedback oilholes 11; Reversing valve core 5 left sides just communicate with hydraulic oil, make reversing valve core 5 switching-overs, and action is the same.This moment, piston 4 strokes were length than the former, so the higher frequency of impact energy is then lower.
When the stroke adjustment plug is adjusted to No. three oil grooves 23 and seals a feedback oilhole 10, No. two feedback oilholes 11 respectively; A feedback oilhole 10, No. two feedback oilholes 11 all are closed, and have only when No. three feedback oilholes 12 are crossed in piston 4 backhauls, just to cause reversing valve core 5 switching-overs.In this case, piston 4 strokes are the longest, and impact energy is maximum, and frequency of impact is minimum.
During adjustment stroke, only need nut 3 is unscrewed, rotational travel adjusting plug 2 is tightened nut 3 then, and the adjustment that can accomplish on the stroke adjustment plug 2 between three groups of oil grooves is switched.
What need recognize is: though present embodiment is contrasted in detail to the utility model; But these explanations; It is simple declaration to the utility model; Rather than to the restriction of the utility model, any innovation and creation that do not exceed in the utility model connotation all fall in the protection domain of the utility model.
Claims (3)
1. hydraulic gate piston stroke fast adjuster; Comprise cylinder body and piston, piston is positioned in the main cavity of cylinder body, it is characterized in that: further comprising stroke adjustment plug, reversing valve core; Cylinder body one side is provided with and is used to the cavity the installing hole of stroke adjustment plug being installed and being used to install reversing valve core; The axis of the piston laterally and be provided with oiling groove A, oiling groove B, oiling groove C between the main cavity from left to right successively, reversing valve core axially is provided with first oil back chamber, oil suction chamber, second oil back chamber between the outside and the cavity from left to right successively, is provided with left oil pocket and right oil pocket on the reversing valve core lateral wall between the oil suction chamber both sides and first oil back chamber, second oil back chamber; Be provided with left oiling chamber between reversing valve core left end and the cavity; Be provided with right oiling chamber between its right-hand member and the cavity, be provided with a feedback oilhole, No. two feedback oilholes, No. three feedback oilholes between installing hole and the main cavity left side from left to right successively, left oiling chamber is communicated with a feedback oilhole through oil circuit in the cylinder body; Right oiling chamber is communicated with through No. two oil circuit oiling groove C; Oil suction chamber is communicated with oiling groove A through No. three oil circuits, and second oil back chamber is communicated with oiling groove B through No. four oil circuits, and said first oil back chamber is communicated with second oil back chamber through No. five oil circuits; The oiling chamber is communicated with the oiling oil circuit, and second oil back chamber is communicated with oil return circuit.
2. according to the said hydraulic gate piston stroke of claim 1 fast adjuster; It is characterized in that: said stroke adjustment plug radial outside is provided with three groups of oil grooves; It is respectively a oil groove with a feedback oilhole, No. two feedback oilholes and the connection of No. three feedback oilholes; No. two feedback oilholes are fed back No. two oil grooves that oilhole is communicated with No. three, feed back No. three oil grooves that oilhole is communicated with No. three.
3. according to the said hydraulic gate piston stroke of claim 2 fast adjuster; It is characterized in that: said stroke adjustment plug is a screw rod; Three groups of oil grooves radially are arranged at the not threaded bar portion of screw rod respectively, and the threaded end of screw rod passes installing hole and regulates nut outward with installing hole and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205276221U CN202370426U (en) | 2011-12-16 | 2011-12-16 | Piston stroke fast adjusting device for hydraulic rock drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205276221U CN202370426U (en) | 2011-12-16 | 2011-12-16 | Piston stroke fast adjusting device for hydraulic rock drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202370426U true CN202370426U (en) | 2012-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205276221U Expired - Lifetime CN202370426U (en) | 2011-12-16 | 2011-12-16 | Piston stroke fast adjusting device for hydraulic rock drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202370426U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154050A (en) * | 2014-07-29 | 2014-11-19 | 李田生 | Efficient hydraulic rock drill |
| CN105829631A (en) * | 2013-12-18 | 2016-08-03 | 日本气动工业株式会社 | Impact-Driven Tool |
| CN113338790A (en) * | 2021-06-29 | 2021-09-03 | 山河智能装备股份有限公司 | Reversing valve of hydraulic rock drill |
| CN118030644A (en) * | 2024-04-15 | 2024-05-14 | 烟台乐匠液压机械有限公司 | Stamping structure with high-sensitivity reversing valve core |
-
2011
- 2011-12-16 CN CN2011205276221U patent/CN202370426U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105829631A (en) * | 2013-12-18 | 2016-08-03 | 日本气动工业株式会社 | Impact-Driven Tool |
| CN105829631B (en) * | 2013-12-18 | 2018-05-01 | 日本气动工业株式会社 | Percussion tool |
| US10343272B2 (en) | 2013-12-18 | 2019-07-09 | Nippon Pneumatic Mfg. Co., Ltd. | Impact-driven tool |
| CN104154050A (en) * | 2014-07-29 | 2014-11-19 | 李田生 | Efficient hydraulic rock drill |
| CN104154050B (en) * | 2014-07-29 | 2016-04-27 | 李田生 | Efficient hydraulic rock drill |
| CN113338790A (en) * | 2021-06-29 | 2021-09-03 | 山河智能装备股份有限公司 | Reversing valve of hydraulic rock drill |
| WO2023273226A1 (en) * | 2021-06-29 | 2023-01-05 | 山河智能装备股份有限公司 | Reversing valve for hydraulic rock drill |
| CN113338790B (en) * | 2021-06-29 | 2024-01-30 | 山河智能装备股份有限公司 | Reversing valve of hydraulic rock drill |
| CN118030644A (en) * | 2024-04-15 | 2024-05-14 | 烟台乐匠液压机械有限公司 | Stamping structure with high-sensitivity reversing valve core |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 310021 No. 15 bailing North Road, Qujiang Economic Development Zone, Quzhou, Zhejiang Patentee after: ZHEJIANG ZHIGAO MACHINERY CO., LTD. Address before: 310021 No. 15 bailing North Road, Donggang Economic Development Zone, Quzhou, Zhejiang Patentee before: Zhejiang Zhigao Machinery Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |
|
| CX01 | Expiry of patent term |