CN204002591U - The tower frame lifting device of rotary drill - Google Patents

The tower frame lifting device of rotary drill Download PDF

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Publication number
CN204002591U
CN204002591U CN201420467679.0U CN201420467679U CN204002591U CN 204002591 U CN204002591 U CN 204002591U CN 201420467679 U CN201420467679 U CN 201420467679U CN 204002591 U CN204002591 U CN 204002591U
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CN
China
Prior art keywords
control
oil circuit
fluid
retraction
branch road
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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.)
Withdrawn - After Issue
Application number
CN201420467679.0U
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Chinese (zh)
Inventor
赵杰
衡宁
朱成云
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Epiroc Nanjing Construction and Mining Equipment Ltd
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Epiroc Nanjing Construction and Mining Equipment Ltd
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Priority to CN201420467679.0U priority Critical patent/CN204002591U/en
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Publication of CN204002591U publication Critical patent/CN204002591U/en
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Abstract

The utility model discloses a kind of tower frame lifting device of rotary drill, comprise hydraulic cylinder, stretch out oil circuit, retraction oil circuit, speed oil circuit control and approach switch, describedly stretch out the rodless cavity that oil circuit is connected in described hydraulic cylinder, described in stretch out on oil circuit and be provided with and stretch out control module; Described retraction oil circuit is connected in the rod chamber of hydraulic cylinder, on described retraction oil circuit, is provided with retraction control module; Described speed oil circuit control is connected on retraction oil circuit, on described speed oil circuit control, is serially connected with speed control valve piece, and end and fuel tank join; Described approach switch is arranged on tower bracing frame, for conducting and the disconnection of control rate control valve piece, and when pylon is during close to level, the conducting of described speed control valve piece.Adopt this tower frame lifting device of the present utility model, the speed in the time of can being convenient to control pylon and falling to level.

Description

The tower frame lifting device of rotary drill
Technical field
The utility model relates to rotary drill field, and specifically, the utility model relates to a kind of tower frame lifting device of rotary drill.
Background technology
Rotary drill is a kind of engineering the drilling equipment, is used for large surface mine.Rotary drill when work pylon need be in vertical state, and pylon need fall on tower bracing frame during walking, in level.Conventionally, the vertical state of pylon and the conversion of level are carried out by hydraulic cylinder.
In prior art, pylon is connected with mainframe by two hydraulic cylinders, stretching out and retracting level and the vertical state of controlling pylon by piston rod in hydraulic cylinder.When the piston rod of hydraulic cylinder stretches out completely, pylon is in vertical state; When the piston rod of hydraulic cylinder is retracted completely, pylon is in level.Particularly, when fluid enters hydraulic cylinder rod chamber, the piston rod of hydraulic cylinder starts to retract, and pylon starts to set level; Otherwise the piston rod of hydraulic cylinder stretches out, pylon starts to erect gradually.
Existing this mode, controls the speed of the falling (level) and erectting of pylon (vertically state) by the oil inlet quantity of regulator solution cylinder pressure.Because needs are increased work efficiency, falling of pylon can, than comparatively fast, have very large impact to pylon in the time of will causing like this pylon to be set level conventionally.If reduce oil cylinder oil inlet amount, can reach the object that reduces impact, but this can cause the reduction of operating efficiency again.
For addressing the above problem, in prior art, conventionally adopt and change material or reduce the modes such as hydraulic cylinder oil inlet quantity and realize, like this, the operating efficiency that has increased cost or rig reduces.
Utility model content
The utility model provides a kind of tower frame lifting device of rotary drill, when it can solve the existing pylon of existing tower frame lifting device and fell, pylon is impacted to larger problem.
For addressing the above problem, the utility model provides a kind of tower frame lifting device of rotary drill, described rotary drill comprises mainframe and pylon, the described tower frame lifting device that is provided with tower bracing frame between described mainframe and described pylon and changes between vertical state and level for controlling described pylon, wherein, described tower frame lifting device comprises hydraulic cylinder, stretches out oil circuit, retraction oil circuit, speed oil circuit control and approach switch
Describedly stretch out the rodless cavity that oil circuit is connected in described hydraulic cylinder, described in stretch out on oil circuit and be provided with and stretch out control module;
Described retraction oil circuit is connected in the rod chamber of described hydraulic cylinder, on described retraction oil circuit, is provided with retraction control module;
Described speed oil circuit control is connected on described retraction oil circuit, on described speed oil circuit control, is serially connected with solenoid operated directional valve and one-way throttle valve, and end and the fuel tank of described speed oil circuit control join;
Described approach switch is arranged on described tower bracing frame, for controlling conducting and the disconnection of described solenoid operated directional valve, and when described pylon is during close to described level, described solenoid operated directional valve conducting.
Preferably, described one-way throttle valve is adjustable one-way throttle valve.
Preferably, the quantity of described hydraulic cylinder is two,
The described oil circuit that stretches out includes and stretches out total oil circuit, first and stretch out branch road and second and stretch out branch road, described first stretch out one end that branch road and second stretches out branch road all with described in stretch out total oil circuit and join, the other end joins with the rodless cavity of hydraulic cylinder described in each respectively, and described first stretches out branch road and described second stretches out described in being all serially connected with on branch road and stretch out control module;
Described retraction oil circuit includes retract total oil circuit, the first retraction branch road and the second retraction branch road, described speed oil circuit control is connected on the total oil circuit of described retraction, one end of described the first retraction branch road and the second retraction branch road all joins with the total oil circuit of described retraction, the other end joins with the rod chamber of hydraulic cylinder described in each respectively, on described the first retraction branch road and described the second retraction branch road, is all serially connected with described retraction control module.
Preferably, the described control module that stretches out is fluid-control one-way sequence valve, being positioned at described first, to stretch out on branch road be the first fluid-control one-way sequence valve, being positioned at described second, to stretch out on branch road be the second fluid-control one-way sequence valve, and described the first fluid-control one-way sequence valve and described the second fluid-control one-way sequence valve are arranged in the adjacent mode of oil-out;
Described retraction control module is fluid-control one-way sequence valve, be positioned on described the first retraction branch road is the 3rd fluid-control one-way sequence valve, being positioned on described the second retraction branch road is the 4th fluid-control one-way sequence valve, and described the 3rd fluid-control one-way sequence valve and described the 4th fluid-control one-way sequence valve are arranged in the adjacent mode of oil-out;
The oil-out of the control port of described the first fluid-control one-way sequence valve and described the 3rd fluid-control one-way sequence valve joins, the oil-out of the control port of described the second fluid-control one-way sequence valve and described the 4th fluid-control one-way sequence valve joins, the oil-out of the control port of described the 3rd fluid-control one-way sequence valve and described the first fluid-control one-way sequence valve joins, and the oil-out of the control port of described the 4th fluid-control one-way sequence valve and described the second pilot sequencing valve joins.
Preferably, described first stretches out the location strings between described the first fluid-control one-way sequence valve and described hydraulic cylinder on branch road is connected to the first one-way throttle valve, and the direction of described the first one-way throttle valve is consistent with the direction of described the first fluid-control one-way sequence valve;
Described second stretches out the location strings between described the second fluid-control one-way sequence valve and described hydraulic cylinder on branch road is connected to the second one-way throttle valve, and the direction of described the second one-way throttle valve is consistent with the direction of described the second fluid-control one-way sequence valve.
The tower frame lifting device of rotary drill of the present utility model arranges approach switch on tower bracing frame, and this approach switch is for controlling the break-make of solenoid operated directional valve, with convenient pylon, will slow down its speed when the level.This device of the present utility model, when pylon approaches tower bracing frame, this approach switch is controlled solenoid operated directional valve in on-state, now, fluid partly Negotiation speed oil circuit control flows back into fuel tank, due to the fluid minimizing of hydraulic cylinder rod chamber, so be positioned at the translational speed of the piston rod of hydraulic cylinder, also slows down, like this, can effectively alleviate the suffered impact of pylon.
Accompanying drawing explanation
Fig. 1 is the structural representation of the tower frame lifting device of rotary drill, and it shows the installation site of the approach switch in the utility model;
Fig. 2 is the partial enlarged drawing of A part in Fig. 1;
Fig. 3 is the hydraulic principle schematic diagram of the tower frame lifting device of rotary drill of the present utility model.
The specific embodiment
Below, by reference to the accompanying drawings, structure of the present utility model and operating principle etc. are further described.
Fig. 1~Fig. 2 shows the structural representation of the tower frame lifting device of rotary drill, and it is mainly used in illustrating approach switch 3 installation site roughly in the utility model.
Referring to Fig. 1~Fig. 2, rotary drill comprises mainframe 1 and pylon 4, and mainframe 1 is positioned at the below of pylon 4, forms the main support of rotary drill.The tower frame lifting device that is provided with tower bracing frame 2 between mainframe 1 and pylon 4 and changes between vertical state and level for controlling pylon 4, one end of tower bracing frame 2 and mainframe 1 are hinged, the other end and pylon 4 are hinged, and wherein, this tower frame lifting device includes hydraulic cylinder 5 etc.
Fig. 3 is the hydraulic principle schematic diagram of the tower frame lifting device of rotary drill in the utility model, and it has specifically illustrated the annexation of each hydraulic unit.
Referring to Fig. 3 and in conjunction with Fig. 1, Fig. 2, more specifically, tower frame lifting device of the present utility model comprises hydraulic cylinder 5, stretches out oil circuit 7, retraction oil circuit 6, speed oil circuit control 14 and approach switch 3.Below, it is illustrated respectively.
Stretch out the rodless cavity that oil circuit 7 is connected in hydraulic cylinder 5, stretch out on oil circuit 7 and be provided with and stretch out control module, this stretches out control module for controlling the oil pressure etc. of rodless cavity, so that the stability of (for realizing the vertical state of pylon 4) pylon 4 while guaranteeing that piston rod 502 stretches out.
Retraction oil circuit 6 is connected in the rod chamber of hydraulic cylinder 5, on retraction oil circuit 6, be provided with retraction control module, similarly, this retraction control module is for controlling the oil pressure etc. of rod chamber, so that the stability of (for realizing the level of pylon 4) pylon 4 while guaranteeing that piston rod 502 is retracted.
Due to pylon 4 common speed when falling, will produce greater impact to pylon 4 like this, for avoiding this problem, the utility model has been set up speed oil circuit control 14.This speed oil circuit control 14 is connected on retraction oil circuit 6, on speed oil circuit control 14, be serially connected with speed control valve piece 15, speed control valve piece 15 comprises solenoid operated directional valve 1501 and the one-way throttle valve 1502 of serial connection mutually, and the end of speed oil circuit control 14 and fuel tank 16 join.The conducting of solenoid operated directional valve 1501 is controlled by approach switch 3 with disconnection, as Fig. 1, shown in 2, approach switch 3 is arranged on tower bracing frame 2, when pylon 4 is during close to level, approach switch 3 is felt the position of pylon 4, its coil obtains electric, auxiliary contact action, control the coil motion of solenoid operated directional valve 1501, make solenoid operated directional valve 1501 conductings, now speed oil circuit control 14 is connected, part fluid can turn back to fuel tank 16 by Negotiation speed oil circuit control 14, reduced the fluid of the rod chamber that enters into hydraulic cylinder 5, thereby reduced the decrease speed of pylon 4, alleviate the suffered impact of pylon 4.
Speed control valve piece 15 is mainly used in realizing the break-make control of speed oil circuit control 14, can certainly realize flow and the flow control of the fluid in speed oil circuit control 14, thus speed when control pylon 4 fell.As shown in FIG., the one-way throttle valve 1502 that speed control valve piece 15 includes solenoid operated directional valve 1501 and is connected in series with this solenoid operated directional valve 1501, the second operating position when the first operating position when solenoid operated directional valve 1501 has oil-in and oil-out conducting and oil-in and oil-out disconnect, approach switch 3 is controlled the switching of the operating position of this solenoid operated directional valve 1501, thus the break-make of control rate oil circuit control 14.Particularly, the second operating position of solenoid operated directional valve 1501 can be realized by the one way valve shown in figure, and this one way valve can stop fluid to flow to fuel tank 16.One-way throttle valve 1502 consists of choke valve and the one way valve that is in parallel with it.
Further, the one-way throttle valve on this speed oil circuit control 14 can be chosen as adjustable one-way throttle valve, to carry out flow adjustment.
The elevating control of pylon 4 can adopt various deformation mode to realize, and next, in conjunction with Fig. 3, a kind of mode is wherein described, and certainly, this does not form the unique restriction to concrete structure of the present utility model.
As shown in Figure 1, the quantity of hydraulic cylinder 5 is two, and the cylinder body 501 of hydraulic cylinder 5 is hinged with the upside of mainframe 1, and the piston rod 502 of hydraulic cylinder 5 is hinged with pylon 4.
Continuation is in conjunction with Fig. 3, stretching out oil circuit 7 includes and stretches out total oil circuit 701, first and stretch out branch road 702 and second and stretch out branch road 703, first stretch out one end that branch road 702 and second stretches out branch road 703 all with stretch out total oil circuit 701 and join, for example, by threeway, the other end joins with the rodless cavity of each hydraulic cylinder 5 respectively, and first stretches out branch road 702 and second stretches out on branch road 703 and be all serially connected with and stretch out control module.
Stretch out control module and can be chosen as fluid-control one-way sequence valve, particularly, being positioned at first, to stretch out on branch road 702 be the first fluid-control one-way sequence valve 10, and being positioned at second, to stretch out on branch road 703 be the second fluid-control one-way sequence valve 11.The oil inlet P of the first fluid-control one-way sequence valve 10 1be connected with the rodless cavity of left side hydraulic cylinder in figure, oil-out T 1with stretch out total oil circuit 701 and be connected; The oil inlet P of the second fluid-control one-way sequence valve 11 2be connected with the rodless cavity of right side hydraulic cylinder in figure, oil-out T 2with stretch out total oil circuit 701 and be connected, the first fluid-control one-way sequence valve 10 and the second fluid-control one-way sequence valve 11 are with oil-out T separately 1with T 2adjacent mode is arranged.
Retraction oil circuit 6 includes retract total oil circuit 601, the first retraction branch road 602 and the second retraction branch road 603, speed oil circuit control 14 is connected in retracts on total oil circuit 601, one end of the first retraction branch road 602 and the second retraction branch road 603 all joins with total oil circuit 601 of retracting, the other end joins with the rod chamber of each hydraulic cylinder 5 respectively, on the first retraction branch road 602 and the second retraction branch road 603, is all serially connected with retraction control module.
Retraction control module also can be chosen as fluid-control one-way sequence valve, and particularly, being positioned on the first retraction branch road 602 is the 3rd fluid-control one-way sequence valve 8, and being positioned on the second retraction branch road 603 is the 4th fluid-control one-way sequence valve 9.The oil inlet P of the 3rd fluid-control one-way sequence valve 8 3be connected with the rod chamber of left side hydraulic cylinder in figure, oil-out T 3total oil circuit 601 is connected with retracting; The oil inlet P of the 4th fluid-control one-way sequence valve 9 4be connected with the rod chamber of right side hydraulic cylinder in figure, oil-out T 4be connected with total oil circuit 601 of retracting, the 3rd fluid-control one-way sequence valve 8 and the 4th fluid-control one-way sequence valve 9 are with oil-out T separately 3with T 4adjacent mode is arranged.
There is following relation in aforesaid four fluid-control one-way sequence valves: the control port K of the first fluid-control one-way sequence valve 10 1oil-out T with the 3rd fluid-control one-way sequence valve 8 3join, the control port K of the second fluid-control one-way sequence valve 11 2oil-out T with the 4th fluid-control one-way sequence valve 9 4join, the control port K of the 3rd fluid-control one-way sequence valve 8 3oil-out T with the first fluid-control one-way sequence valve 10 1join, the control port K of the 4th fluid-control one-way sequence valve 9 4oil-out T with the second pilot sequencing valve 2join.
In addition, speed while falling for adjusting pylon 4, first stretches out the location strings between the first fluid-control one-way sequence valve 10 and hydraulic cylinder 5 on branch road 702 is connected to the first one-way throttle valve 12, the direction of the first one-way throttle valve 12 is consistent with the direction of the first fluid-control one-way sequence valve 10, when rodless cavity output fluid its in work (throttling) state.
Similarly, second stretches out the location strings between the second fluid-control one-way sequence valve 11 and hydraulic cylinder 5 on branch road 703 is connected to the second one-way throttle valve 13, the direction of the second one-way throttle valve 13 is consistent with the direction of the second fluid-control one-way sequence valve 11, when rodless cavity output fluid in work (throttling) state.
Above, be only schematic description of the present utility model, it will be recognized by those skilled in the art that and do not departing from the basis of operating principle of the present utility model, can make multiple improvement to the utility model, this all belongs to protection domain of the present utility model.

Claims (5)

1. the tower frame lifting device of a rotary drill, described rotary drill comprises mainframe and pylon, the described tower frame lifting device that is provided with tower bracing frame between described mainframe and described pylon and changes between vertical state and level for controlling described pylon, it is characterized in that, described tower frame lifting device comprises hydraulic cylinder, stretches out oil circuit, retraction oil circuit, speed oil circuit control and approach switch
Describedly stretch out the rodless cavity that oil circuit is connected in described hydraulic cylinder, described in stretch out on oil circuit and be provided with and stretch out control module;
Described retraction oil circuit is connected in the rod chamber of described hydraulic cylinder, on described retraction oil circuit, is provided with retraction control module;
Described speed oil circuit control is connected on described retraction oil circuit, on described speed oil circuit control, is serially connected with solenoid operated directional valve and one-way throttle valve, and end and the fuel tank of described speed oil circuit control join;
Described approach switch is arranged on described tower bracing frame, for controlling conducting and the disconnection of described solenoid operated directional valve, and when described pylon is during close to described level, described solenoid operated directional valve conducting.
2. the tower frame lifting device of rotary drill as claimed in claim 1, is characterized in that, described one-way throttle valve is adjustable one-way throttle valve.
3. the tower frame lifting device of rotary drill as claimed in claim 1, is characterized in that, the quantity of described hydraulic cylinder is two,
The described oil circuit that stretches out includes and stretches out total oil circuit, first and stretch out branch road and second and stretch out branch road, described first stretch out one end that branch road and second stretches out branch road all with described in stretch out total oil circuit and join, the other end joins with the rodless cavity of hydraulic cylinder described in each respectively, and described first stretches out branch road and described second stretches out described in being all serially connected with on branch road and stretch out control module;
Described retraction oil circuit includes retract total oil circuit, the first retraction branch road and the second retraction branch road, described speed oil circuit control is connected on the total oil circuit of described retraction, one end of described the first retraction branch road and the second retraction branch road all joins with the total oil circuit of described retraction, the other end joins with the rod chamber of hydraulic cylinder described in each respectively, on described the first retraction branch road and described the second retraction branch road, is all serially connected with described retraction control module.
4. the tower frame lifting device of rotary drill as claimed in claim 3, it is characterized in that, the described control module that stretches out is fluid-control one-way sequence valve, being positioned at described first, to stretch out on branch road be the first fluid-control one-way sequence valve, being positioned at described second, to stretch out on branch road be the second fluid-control one-way sequence valve, and described the first fluid-control one-way sequence valve and described the second fluid-control one-way sequence valve are arranged in the adjacent mode of oil-out;
Described retraction control module is fluid-control one-way sequence valve, be positioned on described the first retraction branch road is the 3rd fluid-control one-way sequence valve, being positioned on described the second retraction branch road is the 4th fluid-control one-way sequence valve, and described the 3rd fluid-control one-way sequence valve and described the 4th fluid-control one-way sequence valve are arranged in the adjacent mode of oil-out;
The oil-out of the control port of described the first fluid-control one-way sequence valve and described the 3rd fluid-control one-way sequence valve joins, the oil-out of the control port of described the second fluid-control one-way sequence valve and described the 4th fluid-control one-way sequence valve joins, the oil-out of the control port of described the 3rd fluid-control one-way sequence valve and described the first fluid-control one-way sequence valve joins, and the oil-out of the control port of described the 4th fluid-control one-way sequence valve and described the second pilot sequencing valve joins.
5. the tower frame lifting device of rotary drill as claimed in claim 4, it is characterized in that, described first stretches out the location strings between described the first fluid-control one-way sequence valve and described hydraulic cylinder on branch road is connected to the first one-way throttle valve, and the direction of described the first one-way throttle valve is consistent with the direction of described the first fluid-control one-way sequence valve;
Described second stretches out the location strings between described the second fluid-control one-way sequence valve and described hydraulic cylinder on branch road is connected to the second one-way throttle valve, and the direction of described the second one-way throttle valve is consistent with the direction of described the second fluid-control one-way sequence valve.
CN201420467679.0U 2014-08-18 2014-08-18 The tower frame lifting device of rotary drill Withdrawn - After Issue CN204002591U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420467679.0U CN204002591U (en) 2014-08-18 2014-08-18 The tower frame lifting device of rotary drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420467679.0U CN204002591U (en) 2014-08-18 2014-08-18 The tower frame lifting device of rotary drill

Publications (1)

Publication Number Publication Date
CN204002591U true CN204002591U (en) 2014-12-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420467679.0U Withdrawn - After Issue CN204002591U (en) 2014-08-18 2014-08-18 The tower frame lifting device of rotary drill

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104179460A (en) * 2014-08-18 2014-12-03 阿特拉斯科普柯(南京)建筑矿山设备有限公司 Tower lifting device of roller-bit hole rig

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104179460A (en) * 2014-08-18 2014-12-03 阿特拉斯科普柯(南京)建筑矿山设备有限公司 Tower lifting device of roller-bit hole rig
WO2016026378A1 (en) * 2014-08-18 2016-02-25 阿特拉斯科普柯(南京)建筑矿山设备有限公司 Tower lifting device for rotary drill
US10316540B2 (en) 2014-08-18 2019-06-11 Epiroc (Nanjing) Construction And Mining Equipment Co., Ltd. Tower lifting device for rotary blasthole drill

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20141210

Effective date of abandoning: 20160413

C25 Abandonment of patent right or utility model to avoid double patenting