CN203604292U - Rotation control mechanism and engineering machinery device - Google Patents
Rotation control mechanism and engineering machinery device Download PDFInfo
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- CN203604292U CN203604292U CN201320808889.7U CN201320808889U CN203604292U CN 203604292 U CN203604292 U CN 203604292U CN 201320808889 U CN201320808889 U CN 201320808889U CN 203604292 U CN203604292 U CN 203604292U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 26
- 239000012530 fluid Substances 0.000 claims description 51
- 239000000945 filler Substances 0.000 claims description 18
- 230000005611 electricity Effects 0.000 claims description 5
- 239000003921 oil Substances 0.000 description 75
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The utility model discloses a rotation control mechanism and an engineering machinery device. The rotation control mechanism comprises a rotation handle, a first valve set, a second valve set, a brake cylinder and a rotation motor. The rotation handle is connected with the control end of the first valve set so as to control reserving of the first valve set and connected with the control end of a control valve set of the rotation motor so as to control reversing of the control valve set. The first valve set is connected with the second valve set. The second valve set is connected with the brake cylinder. The brake cylinder brakes the rotation motor. When the rotation handle is located in the rotation position and the second valve set is communicated with an oil way between the first valve set and the brake cylinder, the first valve set is communicated with a first pressure oil source, the brake cylinder stops conducting braking, the control valve set is communicated with an oil way between the rotation motor and a second pressure oil source, and the rotation motor rotates; when the oil way between the first valve set and the brake cylinder is blocked by the second valve set, the brake cylinder keeps conducting braking, and the rotation motor stops rotating. Rotation brake can be timely conducted when the rotation control mechanism is implemented.
Description
Technical field
The utility model relates to technical field of hydraulic, particularly relates to a kind of rotary controlling mechanism, also relates to a kind of engineering mechanical device.
Background technique
Revolution operation is the fundamental function of engineering mechanical device, and weight is delivered to any spatial position within the scope of assigned work by the arm of for example hoist.The elementary process that existing hoist turns round operation is: in the time handling rotary handle revolution, rotary control valve group is controlled oily promotion pressure oil-source is communicated to master cylinder, master cylinder disappears to the braking of rotary motor, turns round thereby rotary motor can respond the manipulation of rotary handle.
But there is larger defect in existing revolution control procedure: when rotary handle returns initial position, rotary control valve group is not controlled oil and is entered, thereby the oil circuit between occluding pressure oil sources and master cylinder, but because rotary control valve group exists remaining pressure oil, these remaining pressure oils ideally can flow to oil sump tank by throttle valve, but just because of the existence of throttle valve, draining speed is slow, cause partial pressure oil can be back to master cylinder, cause master cylinder to postpone braking, thus the potential safety hazard of bringing.The arm of for example hoist is sling and is carried out brake operating when weight turns round, but arm does not stop revolution at once, but can continue to turn round a segment distance.Further, if rotary handle transforms to rotary position owing to being subject to misoperation in the time of application position, the arm of hoist will turn round immediately, and this also exists potential safety hazard.
Model utility content
The technical problem that the utility model mainly solves is to provide a kind of rotary controlling mechanism and engineering mechanical device, can carry out in time rotary braking.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of rotary controlling mechanism is provided, rotary controlling mechanism comprises rotary handle, the first valve group, second valve group and master cylinder and rotary motor, rotary handle connects respectively the control end of the control end of the first valve group and the control valve group of rotary motor, to control respectively the first valve group and the commutation of control valve group, the first valve group connects second valve group, second valve group connects master cylinder, master cylinder brake rotary motor, wherein, when rotary handle is in the time that rotary position and second valve group are communicated with the oil circuit between the first valve group and master cylinder, the first valve group is communicated with the first pressure oil-source, master cylinder is eliminated braking, control valve group is communicated with the oil circuit between rotary motor and the second pressure oil-source, rotary motor turns round, in the time that second valve group is blocked the oil circuit between the first valve group and master cylinder, master cylinder keeps braking, and rotary motor stops revolution.
Wherein, second valve group is solenoid valve, and when solenoid valve obtains when electric, solenoid valve is communicated with the oil circuit between the first valve group and master cylinder, and in the time of solenoid valve dead electricity, solenoid valve is blocked the oil circuit between the first valve group and master cylinder.
Wherein, the first valve group comprises the first shuttle valve, control valve, the second shuttle valve, one-way valve and throttle valve, two filler openings of the first shuttle valve connect respectively rotary handle, the oil outlet of the first shuttle valve connects the control port of control valve, two actuator ports of control valve connect respectively the filler opening of the first pressure oil-source and the second shuttle valve, the oil outlet of the second shuttle valve connects the filler opening of one-way valve, the oil outlet of one-way valve connects second valve group, throttle valve and one-way valve parallel connection, wherein, when rotary handle is during in rotary position, in two filler openings of the first shuttle valve time, one is communicated with control oil sources, control valve is communicated with the oil circuit between the first pressure oil-source and the second shuttle valve, when rotary handle is during in application position, two filler openings of the first shuttle valve are not all communicated with control oil sources, and control valve is blocked the oil circuit between the first pressure oil-source and the second shuttle valve.
Wherein, solenoid valve has the first hydraulic fluid port, the second hydraulic fluid port, the 3rd hydraulic fluid port and the 4th hydraulic fluid port, the first hydraulic fluid port connects the first valve group, the second hydraulic fluid port connects oil sump tank, and the 4th hydraulic fluid port connects master cylinder, wherein, when solenoid valve is during in the first working position, the first hydraulic fluid port is communicated with the 3rd hydraulic fluid port, and the 3rd hydraulic fluid port connects the 4th hydraulic fluid port, and the second hydraulic fluid port is communicated with the 4th hydraulic fluid port; When solenoid valve is during in the second working position, the first hydraulic fluid port is communicated with the 4th hydraulic fluid port, and the 3rd hydraulic fluid port is communicated with the second hydraulic fluid port.
For solving the problems of the technologies described above, another technological scheme that the utility model adopts is: a kind of engineering mechanical device is provided, and engineering mechanical device comprises above-mentioned any rotary controlling mechanism.
Rotary controlling mechanism of the present utility model and engineering mechanical device by arranging second valve group between the first valve group and master cylinder, in the time that second valve group is blocked the oil circuit between the first valve group and master cylinder, residual pressure oil in the first valve group can not be back to master cylinder, and then master cylinder can keep braking in time, rotary motor stops revolution immediately, even operation rotary handle, master cylinder can not eliminated braking yet, thereby can carry out in time rotary braking, can prevent the misoperation of rotary handle.
Accompanying drawing explanation
Fig. 1 is the utility model rotary controlling mechanism embodiment's structural representation;
Fig. 2 is the concrete structure schematic diagram of a kind of application example of rotary controlling mechanism shown in Fig. 1.
Embodiment
Below in conjunction with drawings and Examples, the utility model is elaborated.
Referring to Fig. 1, the utility model rotary controlling mechanism embodiment's structural representation.
Rotary controlling mechanism comprises rotary handle 10, the first valve group 11, second valve group 12, master cylinder 13 and rotary motor 14.Rotary handle 10 connects respectively the control end of the control end of the first valve group 11 and the control valve group 15 of rotary motor 14, commutate to control respectively the first valve group 11 and control valve group 15, the first valve group 11 connects second valve group 12, and second valve group 12 connects master cylinder 13, master cylinder 13 brake rotary motors 14.
When rotary handle 10 is in the time that rotary position and second valve group 12 are communicated with the oil circuit between the first valve group 11 and master cylinder 13, the first valve group 11 is communicated with the first pressure oil-source 16, master cylinder 13 is eliminated braking, control valve group 15 is communicated with the oil circuit between rotary motor 14 and the second pressure oil-source 17, and rotary motor 14 turns round.
In the time that second valve group 12 is blocked the oil circuit between the first valve group 11 and master cylinder 13, master cylinder 13 keeps braking, and rotary motor 14 stops revolution.
In the time that needs turn round operation, first second valve group 12 is in open mode, be that second valve group 12 is opened the oil circuit between the first valve group 11 and master cylinder 13, then handling rotary handle 10 makes rotary handle 10 in rotary position, for example left revolution, control oil content in the control oil sources (not shown) being communicated with rotary handle 10 is so two-way, one tunnel enters the control end of the first valve group 11, be used for controlling the first valve group 11 and be communicated with the first pressure oil-source 16, another road enters the control end of control valve group 15, be communicated with the oil circuit between rotary motor 14 and the second pressure oil-source 17 for controlling control valve group 15.Now, pressure oil in the first pressure oil-source 16 arrives master cylinder 13 through the first valve group 11, second valve group 12, pressure oil in the second pressure oil-source 17 arrives rotary motor 14 through control valve group 15, here, the effect of the pressure oil in the first pressure oil-source 16 is to make master cylinder 13 eliminate braking, the effect of the pressure oil in the second pressure oil-source 17 is that rotary motor 14 is turned round, but only has master cylinder 13 to eliminate after braking, and rotary motor 14 can turn round.Because the braking of master cylinder 13 is eliminated, so the pressure oil in the second pressure oil-source 17 can be controlled the left revolution of rotary motor 14.It should be noted that, control oil sources and the first pressure oil-source 16, the second pressure oil-source 17 and belong to different oil sources, and the first pressure oil-source 16 and the second pressure oil-source 17 can be same oil sources, also can be different oil sources, control oil sources and refer to the oil sources that is communicated with and is controlled by rotary handle 10 with rotary handle 10.
In the time that needs stop turning round operation, first second valve group 12 is in closed condition, be that second valve group 12 is blocked the oil circuit between the first valve group 11 and master cylinder 13, then handling rotary handle 10 makes rotary handle 10 in application position, the control end of the first valve group 11 has not had to control oily control so, will turn-off its oil circuit being connected with the first pressure oil-source 16.At this moment, although there is remaining pressure oil in the first valve group 11, but because second valve group 12 has been blocked the oil circuit between the first valve group 11 and master cylinder 13, remaining pressure oil can not be back to master cylinder 13, be that master cylinder 13 can keep braking immediately, rotary motor 14 brake operating of rotary handle 10 that makes an immediate response, stops revolution in time.Be appreciated that even if rotary handle 10 is not also got back to application position, rotary motor 14 can not turn round due to master cylinder 13 brake rotary motors 14.Pressure oil remaining in the first valve group 11 can pass through oil return circuit draining.
The rotary controlling mechanism of the present embodiment by arranging second valve group 12 between the first valve group 11 and master cylinder 13, in the time that second valve group 12 is blocked the oil circuit between the first valve group 11 and master cylinder 13, residual pressure oil in the first valve group 11 can not be back to master cylinder 13, and then master cylinder 13 can keep braking immediately, 14 of rotary motors stop revolution immediately, even operation rotary handle 10, master cylinder 13 can not eliminated braking yet, rotary motor 14 does not have response yet, thereby can carry out in time rotary braking, can prevent the misoperation of rotary handle.
Alternatively, implementing when the present embodiment, the concrete structure of the first valve group 11, second valve group 12 and control valve group 15 as shown in Figure 2:
The first valve group 11 comprises the first shuttle valve 111, control valve 112, the second shuttle valve 113, one-way valve 114 and throttle valve 115, two filler openings of the first shuttle valve 111 connect respectively rotary handle 10, the oil outlet of the first shuttle valve 111 connects the control port of control valve 112, two actuator ports of control valve 112 connect respectively the filler opening of the first pressure oil-source 16 and the second shuttle valve 113, the oil outlet of the second shuttle valve 113 connects the filler opening of one-way valve 114, the oil outlet of one-way valve 114 connects second valve group 12, throttle valve 115 and one-way valve 114 parallel connections.Further, alternatively, the first valve group 11 also comprises solenoid valve 116, another filler opening of the second shuttle valve 113 can connect the first pressure oil-source 16 or oil sump tank 18 by solenoid valve 116, particularly, solenoid valve 116 has three actuator ports, and three actuator ports connect respectively another filler opening, the first pressure oil-source 16 and the oil sump tank 18 of the second shuttle valve 113, only have when solenoid valve 116 when electric, another oil-feed eloquence of the second shuttle valve 113 can be communicated with the first pressure oil-source 16.Solenoid valve 116 can, in the time that control valve 112 can not commutate due to fault, by must be electric, replace control valve 112 the first pressure oil-source 16 to be exported to another filler opening of the second shuttle valve 113.
Wherein, when rotary handle 10 is during in rotary position, one in two filler openings of the first shuttle valve 111 is communicated with and controls oil sources (not shown), and control valve 112 is communicated with the oil circuit between the first pressure oil-source 16 and the second shuttle valve 113.Now, control valve 112 outputs to the pressure oil of the first pressure oil-source 16 oil outlet of the second shuttle valve 113, and pressure oil outputs to second valve group 12 from the oil outlet of one-way valve 114 again, finally arrives master cylinder 13.
When rotary handle 10 is during in application position, two filler openings of the first shuttle valve 111 are not all communicated with control oil sources, and control valve 112 is blocked the oil circuit between the first pressure oil-source 16 and the second shuttle valve 113.Residual pressure oil in the first valve group 11 can be let out to other oil return circuit by throttle valve 115, now, although the draining speed of throttle valve 115 is slow, dead electricity of second valve group 12, pressure oil can not arrive master cylinder 13, thereby master cylinder 13 is braked in time.
The utility model is another embodiment also provide a kind of engineering mechanical device, comprise the rotary controlling mechanism of above-described embodiment, because above-mentioned rotary controlling mechanism has advantages of timely braking, therefore the engineering mechanical device that is provided with this rotary controlling mechanism also possesses corresponding technique effect, its specific implementation process is similar to the above embodiments, is not repeated herein.In the present embodiment, engineering mechanical device is for example hoist.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model specification and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (5)
1. a rotary controlling mechanism, it is characterized in that, described rotary controlling mechanism comprises rotary handle (10), the first valve group (11), second valve group (12), master cylinder (13) and rotary motor (14), described rotary handle (10) connects respectively the control end of the control end of described the first valve group (11) and the control valve group (15) of rotary motor (14), to control respectively the first valve group (11) and control valve group (15) commutation, described the first valve group (11) connects described second valve group (12), described second valve group (12) connects described master cylinder (13), described master cylinder (13) brake rotary motor (14), wherein,
When described rotary handle (10) is in the time that rotary position and described second valve group (12) are communicated with the oil circuit between described the first valve group (11) and described master cylinder (13), described the first valve group (11) is communicated with the first pressure oil-source (16), described master cylinder (13) is eliminated braking, described control valve group (15) is communicated with the oil circuit between described rotary motor (14) and the second pressure oil-source (17), and described rotary motor (14) turns round;
In the time that described second valve group (12) is blocked the oil circuit between described the first valve group (11) and described master cylinder (13), described master cylinder (13) keeps braking, and described rotary motor (14) stops revolution.
2. rotary controlling mechanism according to claim 1, it is characterized in that, described second valve group (12) is solenoid valve, when described solenoid valve obtains when electric, described solenoid valve is communicated with the oil circuit between described the first valve group (11) and described master cylinder (13), in the time of described solenoid valve dead electricity, described solenoid valve is blocked the oil circuit between described the first valve group (11) and described master cylinder (13).
3. rotary controlling mechanism according to claim 1 and 2, it is characterized in that, described the first valve group (11) comprises the first shuttle valve (111), control valve (112), the second shuttle valve (113), one-way valve (114) and throttle valve (115), two filler openings of described the first shuttle valve (111) connect respectively described rotary handle (10), the oil outlet of described the first shuttle valve (111) connects the control port of described control valve (112), two actuator ports of described control valve (112) connect respectively the filler opening of described the first pressure oil-source (16) and described the second shuttle valve (113), the oil outlet of described the second shuttle valve (113) connects the filler opening of described one-way valve (114), the oil outlet of described one-way valve (114) connects described second valve group (12), described throttle valve (115) and described one-way valve (114) parallel connection, wherein,
When described rotary handle (10) is during in rotary position, one in two filler openings of described the first shuttle valve (111) is communicated with control oil sources, and described control valve (112) is communicated with the oil circuit between described the first pressure oil-source (16) and described the second shuttle valve (113);
When described rotary handle (10) is during in application position, two filler openings of described the first shuttle valve (111) are not all communicated with control oil sources, and described control valve (112) is blocked the oil circuit between described the first pressure oil-source (16) and described the second shuttle valve (113).
4. rotary controlling mechanism according to claim 3, it is characterized in that, described solenoid valve has the first hydraulic fluid port, the second hydraulic fluid port, the 3rd hydraulic fluid port and the 4th hydraulic fluid port, described the first hydraulic fluid port connects described the first valve group (11), described the second hydraulic fluid port connects oil sump tank (18), described the 4th hydraulic fluid port connects described master cylinder (13), wherein
When described solenoid valve is during in the first working position, described the first hydraulic fluid port is communicated with described the 3rd hydraulic fluid port, and described the 3rd hydraulic fluid port connects described the 4th hydraulic fluid port, and described the second hydraulic fluid port is communicated with described the 4th hydraulic fluid port;
When described solenoid valve is during in the second working position, described the first hydraulic fluid port is communicated with described the 4th hydraulic fluid port, and described the 3rd hydraulic fluid port is communicated with described the second hydraulic fluid port.
5. an engineering mechanical device, is characterized in that, described engineering mechanical device comprises according to the rotary controlling mechanism described in claim 1 to 4 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320808889.7U CN203604292U (en) | 2013-12-10 | 2013-12-10 | Rotation control mechanism and engineering machinery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320808889.7U CN203604292U (en) | 2013-12-10 | 2013-12-10 | Rotation control mechanism and engineering machinery device |
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| Publication Number | Publication Date |
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| CN203604292U true CN203604292U (en) | 2014-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320808889.7U Expired - Lifetime CN203604292U (en) | 2013-12-10 | 2013-12-10 | Rotation control mechanism and engineering machinery device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112709730A (en) * | 2021-01-06 | 2021-04-27 | 武汉船用机械有限责任公司 | Closed hydraulic control system of slewing mechanism and application method thereof |
| CN113187015A (en) * | 2021-05-11 | 2021-07-30 | 徐州徐工挖掘机械有限公司 | Digging machine |
-
2013
- 2013-12-10 CN CN201320808889.7U patent/CN203604292U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112709730A (en) * | 2021-01-06 | 2021-04-27 | 武汉船用机械有限责任公司 | Closed hydraulic control system of slewing mechanism and application method thereof |
| CN112709730B (en) * | 2021-01-06 | 2023-06-23 | 武汉船用机械有限责任公司 | Closed hydraulic control system of slewing mechanism and application method thereof |
| CN113187015A (en) * | 2021-05-11 | 2021-07-30 | 徐州徐工挖掘机械有限公司 | Digging machine |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |