CN201915935U - Down-the-hole drill under control of load sensitive hydraulic transmission system - Google Patents
Down-the-hole drill under control of load sensitive hydraulic transmission system Download PDFInfo
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- CN201915935U CN201915935U CN2010206293836U CN201020629383U CN201915935U CN 201915935 U CN201915935 U CN 201915935U CN 2010206293836 U CN2010206293836 U CN 2010206293836U CN 201020629383 U CN201020629383 U CN 201020629383U CN 201915935 U CN201915935 U CN 201915935U
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- load sensitive
- motor
- sensitive
- hole drill
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Abstract
The utility model discloses a down-the-hole drill under the control of a load sensitive hydraulic transmission system, which comprises a drill rack, a walking motor, a propulsion motor and a rotary motor. The down-the-hole drill also comprises a diesel engine, a load sensitive variable hydraulic plunger pump and a load sensitive multiway valve, wherein the power output end of the diesel engine is connected with the load sensitive variable hydraulic plunger pump; an output port of the load sensitive variable hydraulic plunger pump is connected with an oil inlet of the load sensitive multiway valve through an output oil pipe; the load sensitive multiway valve is respectively connected with the walking motor, the propulsion motor and the rotary motor; and the diesel engine, the load sensitive variable hydraulic plunger pump and the load sensitive multiway valve are fixedly arranged on the drill rack. The down-the-hole drill provides single-pump oil supply through the diesel engine arranged on the drill rack, and simultaneously meets the working requirements of multiple loops and multiple actuating elements with different flow rates and pressures, and can automatically adjust the displacement of the hydraulic pump through the opening of a valve core of the load sensitive multiway valve. The down-the-hole drill realizes the functions of simultaneous actuating of two or more than two working mechanisms and improves the working efficiency of the drill.
Description
Technical field the utility model relates to the rig that a kind of mine Drilling uses, particularly a kind of down-the-hole drill that adopts the control of load-sensitive Hydraulic Power Transmission System.
Background technology is present, and generally the down-the-hole drill overwhelming majority of Shi Yonging is a pneumatic drilling machine, and the hydraulic pressure down-the-hole drill of a spot of employing triple gear pumping system is also arranged in recent years.When work, pneumatic drilling machine utilizes compressed air-driven cylinder and air motor to carry out construction operation; Because the compressibility and the operating pressure of gas are lower, be difficult to realize the moving function of action simultaneously of two or more operating mechanisms, the operating efficiency of rig is lower, the consumption height of fuel oil.What the hydraulic pressure hidden hole drilling of triple gear pumping system adopted is Constant Pump System, when work, in order to regulate running parameter, must produce spill losses and restriction loss, it can not realize the function that two or more operating mechanisms move simultaneously, and the operating efficiency of rig is lower, the consumption height of fuel oil.
The utility model content is in order to solve the aeratic hidden hole rig and triple gear pump constant displacement pump hydraulic drive down-the-hole drill can not be realized the function that two or more mechanisms move simultaneously, improve the operating efficiency of rig, the consumption of reduction fuel oil, the utility model provides a kind of down-the-hole drill that adopts the control of load-sensitive Hydraulic Power Transmission System, this down-the-hole drill is not only realized the function that two or more operating mechanisms move simultaneously, and can improve the operating efficiency of rig, reduce the consumption of fuel oil.
The technical scheme that the utility model solve the technical problem employing is: a kind of down-the-hole drill that adopts the control of load-sensitive Hydraulic Power Transmission System comprises borer frame, traveling motor, propulsion motor, rotary motor; It is characterized in that: it also comprises diesel engine, load-sensitive variable hydraulic planger pump and load sensing multi-way valve; The diesel powered output is connected with load-sensitive variable hydraulic planger pump, and load-sensitive variable hydraulic planger pump delivery outlet is connected with the load sensing multi-way valve oil-in by output oil pipe; Load sensing multi-way valve is connected respectively with traveling motor, propulsion motor and rotary motor, and diesel engine, load-sensitive variable hydraulic planger pump and load sensing multi-way valve are fixedly mounted on the borer frame.
Diesel engine, load-sensitive variable hydraulic planger pump and load sensing multi-way valve are equipment or the parts of purchasing by commercial sources.
The utility model is by a load-sensitive variable of the Diesel Driven hydraulic plunger oil pump feed that is installed on the borer frame, upstream pressure recuperation valve by load sensing multi-way valve carries out the valve precompensation, after again through a plurality of oil-outs of load sensing multi-way valve to these executing agency's fuel feeding of traveling motor, propulsion motor and rotary motor, not only satisfy the different a plurality of loops of required flow, pressure, the job requirement of a plurality of executing agencies simultaneously, and can be according to the responsive variable hydraulic plunger of the automatic regulating load of the valve core opening amount of load sensing multi-way valve pump delivery.
Connect by high-pressure rubber pipe between load sensing multi-way valve and each executing agency.After shuttle valve during work in the load sensing multi-way valve detects maximum working pressure in each executing agency, this pressure is fed back to the control signal of load-sensitive volume adjustable hydraulic pump as variable by high-pressure rubber hose coupling, and the load-sensitive volume adjustable hydraulic pump is regulated pump delivery to satisfy the different a plurality of loops of required flow, pressure, the job requirement of a plurality of executive components automatically according to load feedback signal.
The utility model power attenuation is lower, and efficient is far above conventional hydraulic system.High efficiency, power loss mean the saving and the lower calorific value of hydraulic system of fuel for a short time, and each executing agency can do composite move, can save subsidiary operation time.
Description of drawings Fig. 1 is a structural representation of the present utility model,
Fig. 2 is a schematic diagram of the present utility model.
Among the figure: 1-frame, 2-diesel engine, 3-load-sensitive variable hydraulic planger pump, 301-load-sensitive control valve, 4-banked direction control valves oil circuit tube connector also claims high-pressure rubber pipe, the 5-load sensing multi-way valve, 501-upstream pressure recuperation valve, the 502-shuttle valve, 503-banked direction control valves spool, 6-output oil pipe, 7-feedback signal pipe, 8-traveling motor, 9-propulsion motor, 10-rotary motor.
The specific embodiment is as shown in the figure: a kind of down-the-hole drill that adopts the control of load-sensitive Hydraulic Power Transmission System comprises frame 1, traveling motor 8, propulsion motor 9, rotary motor 10; It also comprises diesel engine 2, load-sensitive variable hydraulic planger pump 3 and load sensing multi-way valve 5; Diesel engine 2 clutch ends are connected with load-sensitive variable hydraulic planger pump 3, and load-sensitive variable hydraulic planger pump 3 delivery outlets are connected with load sensing multi-way valve 5 oil-ins by output oil pipe 6; Load sensing multi-way valve 5 is connected respectively with traveling motor 8, propulsion motor 9 and rotary motor 10 by banked direction control valves oil circuit tube connector 4, and diesel engine 2, load-sensitive variable hydraulic planger pump 3 are fixedly mounted on the frame 1 with load sensing multi-way valve 5.
The signal output interface of load sensing multi-way valve 5 is connected by feedback signal pipe 7 with the load-sensitive control valve 301 of load-sensitive variable hydraulic planger pump 3; In the course of work, the shuttle valves 502 in the load sensing multi-way valve 5 feed back to the control signal of load-sensitive variable hydraulic planger pump 3 as variable by the feedback signal pipe with this pressure information after detecting maximum working pressure in traveling motor 8, propulsion motor 9 and rotary motor 10 each executing agency.When executing agency's traveling motor 8, propulsion motor 9 or rotary motor 10 are not worked, the control signal that feeds back to load-sensitive variable hydraulic planger pump 3 makes it be in the armed state of meta, no flow output, banked direction control valves spool 503 position that mediates, the pressure of load-sensitive control valve 301 is the setting load-sensitive compensatory pressure of hydraulic pump at this moment, general 15～20bar.
The a certain road of service load sensing multi-way valve 5 or 503 commutations of banked direction control valves spool, corresponding load pressure can be sent into this pressure the load-sensitive control valve 301 of load-sensitive variable hydraulic planger pump 3 by shuttle valve 502 through feedback signal pipe 7, load-sensitive volume adjustable hydraulic pump 3 is experienced system pressure-traffic demand, thus the output system executing agency required flow that is traveling motor 8, propulsion motor 9 and rotary motor 10.
When a certain executing agency or the work of several executing agency, after detecting maximum working pressure in each executing agency by the shuttle valves 502 in the load sensing multi-way valve 5, give load-sensitive Variable plunger pump 3 with this pressure feedback, hydraulic pump stroking mechanism action this moment, hydraulic pump output hydraulic oil is up to reaching and the corresponding to flow of each road valve core opening of banked direction control valves.Owing to upstream pressure recuperation valve 501 is housed in each road import department of banked direction control valves, even when banked direction control valves oil-in pressure changes, the front and back pressure differential of banked direction control valves valve core opening is changed, so, when one timing of valve core opening amount, flow by spool can not change, and promptly the operating rate of executing agency can not change because of the variation of pressure yet.
Claims (3)
1. a down-the-hole drill that adopts the control of load-sensitive Hydraulic Power Transmission System comprises frame, traveling motor, propulsion motor, rotary motor; It is characterized in that: it also comprises diesel engine (2), load-sensitive variable hydraulic planger pump (3) and load sensing multi-way valve (5); Described diesel engine (2) clutch end is connected with described load-sensitive variable hydraulic planger pump (3), and described load-sensitive variable hydraulic planger pump (3) delivery outlet is connected with described load sensing multi-way valve (5) oil-in by output oil pipe (6); Described load sensing multi-way valve (5) is connected respectively with described traveling motor (8), described propulsion motor (9) and described rotary motor (10), and described diesel engine (2), described load-sensitive variable hydraulic planger pump (3) are fixedly mounted on the described frame (1) with described load sensing multi-way valve (5).
2. a kind of down-the-hole drill that adopts the control of load-sensitive Hydraulic Power Transmission System as claimed in claim 1, it is characterized in that: described load sensing multi-way valve (5) is connected respectively with described traveling motor (8), described propulsion motor (9) and described rotary motor (10) by banked direction control valves oil circuit tube connector (4).
3. a kind of down-the-hole drill that adopts the control of load-sensitive Hydraulic Power Transmission System as claimed in claim 1 or 2, it is characterized in that: the signal output interface of described load sensing multi-way valve (5) is connected by feedback signal pipe (7) with the load-sensitive control valve (301) of described load-sensitive variable hydraulic planger pump (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206293836U CN201915935U (en) | 2010-11-26 | 2010-11-26 | Down-the-hole drill under control of load sensitive hydraulic transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206293836U CN201915935U (en) | 2010-11-26 | 2010-11-26 | Down-the-hole drill under control of load sensitive hydraulic transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201915935U true CN201915935U (en) | 2011-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206293836U Expired - Lifetime CN201915935U (en) | 2010-11-26 | 2010-11-26 | Down-the-hole drill under control of load sensitive hydraulic transmission system |
Country Status (1)
| Country | Link |
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| CN (1) | CN201915935U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434507A (en) * | 2011-11-11 | 2012-05-02 | 中联重科股份有限公司 | Engineering machinery and load sensitivity control system and control method thereof |
| CN103726784A (en) * | 2013-12-31 | 2014-04-16 | 山河智能装备股份有限公司 | Hydraulic drill carriage pushed control impacting hydraulic return circuit and control method of hydraulic drill carriage pushed control impacting hydraulic return circuit |
-
2010
- 2010-11-26 CN CN2010206293836U patent/CN201915935U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434507A (en) * | 2011-11-11 | 2012-05-02 | 中联重科股份有限公司 | Engineering machinery and load sensitivity control system and control method thereof |
| CN102434507B (en) * | 2011-11-11 | 2014-07-09 | 中联重科股份有限公司 | Engineering machinery and load sensitivity control system and control method thereof |
| CN103726784A (en) * | 2013-12-31 | 2014-04-16 | 山河智能装备股份有限公司 | Hydraulic drill carriage pushed control impacting hydraulic return circuit and control method of hydraulic drill carriage pushed control impacting hydraulic return circuit |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110803 |