CN209687837U - A kind of hydraulic locking mechanism of hydraulic headstock gear - Google Patents
A kind of hydraulic locking mechanism of hydraulic headstock gear Download PDFInfo
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- CN209687837U CN209687837U CN201920399511.3U CN201920399511U CN209687837U CN 209687837 U CN209687837 U CN 209687837U CN 201920399511 U CN201920399511 U CN 201920399511U CN 209687837 U CN209687837 U CN 209687837U
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- hydraulic
- valve
- clamping block
- piston
- way valve
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Abstract
A kind of hydraulic locking mechanism of hydraulic headstock gear, including valve casing and piston rod, piston rod upper end is equipped with flange, flange lower end is equipped with the conical surface, further includes pressure limiting valve group, the pin hole and axis hole that are provided in valve casing, is equipped with clamping block in pin hole, piston is equipped in axis hole, piston is fixedly connected with clamping block, and inclined-plane corresponding with the flange conical surface is equipped on clamping block, and pressure limiting valve group controls clamping block by piston and stretches.The utility model is for solving the problems, such as mechanical locking mechanism structure bulky, being easy to appear phenomena such as stuck.
Description
Technical field
The utility model relates to a kind of hydraulic locking mechanisms of hydraulic headstock gear.
Background technique
The opening and closing of gate is much controlled by hydraulic headstock gear in power station at present, and hydraulic headstock gear has operation can
Lean on, be convenient for management, high degree of automation the advantages that, but due to gate promoted in place after certain time can generate certain downslide
Amount, just needs oil pump motor frequent starting this when, gate promotion is set back, and then improve management cost.With
Preceding mechanical locking mechanism structure bulky is easy to appear phenomena such as stuck, and there are some potential safety problemss in water conservancy project machinery.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of hydraulic locking mechanisms of hydraulic headstock gear, for solving
Mechanical locking mechanism structure bulky is easy to appear the problem of phenomena such as stuck.
To solve the above-mentioned problems, technical solution to be solved in the utility model are as follows:
A kind of hydraulic locking mechanism of hydraulic headstock gear, including valve casing and piston rod, piston rod upper end are equipped with flange, flange
Lower end is equipped with the conical surface, further includes pressure limiting valve group, the pin hole and axis hole that are provided in valve casing, is equipped with clamping block in pin hole, in axis hole
Equipped with piston, piston is fixedly connected with clamping block, and inclined-plane corresponding with the flange conical surface is equipped on clamping block, and pressure limiting valve group is logical
It is flexible to cross piston control clamping block.
The pressure limiting valve group includes the first two position two-way valve, check valve, the second two position two-way valve and overflow valve, and hydraulic power source is logical
The first hydraulic tube connection axis hole is crossed, the first two position two-way valve, check valve and overflow valve are sequentially communicated on the first hydraulic tube, fuel tank
It is connected to by the second hydraulic tube with the first hydraulic tube, the second two position two-way valve is connected on the second hydraulic tube.
First two position two-way valve is post rod type two position two-way valve, and the first two position two-way valve is mounted on valve casing, piston
Bar drives the commutation of the first two position two-way valve.
The technical effect of the utility model are as follows: mechanical locking mechanism is changed to fluid pressure type locking mechanism by this patent, thus
Product structure is simplified, processing cost is reduced, reduces the expense of maintenance.
Detailed description of the invention
The utility model is described further with reference to the accompanying drawing:
Fig. 1 is the schematic diagram of the section structure of the utility model, and valve is in the open state in figure；
Fig. 2 is the schematic diagram of the section structure of the utility model, and valve is in close state in figure.
In figure: valve casing 1, piston rod 2, flange 3, clamping block 4, piston 5, pressure limiting valve group 6, the first two position two-way valve 61,
Two two position two-way valves 62, check valve 63, overflow valve 64.
Specific embodiment
As illustrated in fig. 1 and 2, a kind of hydraulic locking mechanism of hydraulic headstock gear, including valve casing 1 and piston rod 2, piston rod 2
Upper end is equipped with flange 3, and 3 lower end of flange is equipped with the conical surface, further includes pressure limiting valve group 6, the pin hole and axis hole that are provided in valve casing 1, pin
It is equipped with clamping block 4 in hole, is equipped with piston 5 in axis hole, piston 5 is fixedly connected with clamping block 4, is equipped with and flange 3 on clamping block 4
The corresponding inclined-plane of the conical surface, pressure limiting valve group 6 control clamping block 4 by piston 5 and stretch.
The application method and working principle of the utility model are as follows: as shown in Figure 1, when valve is in the open state, piston rod 2
Upper end flange 3 goes upward to 4 top of clamping block, and pressure limiting valve group 6 controls clamping block 4 and is moved to the left latched position, by 4 pairs of work of clamping block
Stopper rod 2 is limited, and prevents gate from gliding.As shown in Fig. 2, pressure limiting valve group 6 is to the liquid in axis hole when valve is in close state
Pressure oil carries out pressure release, carries out clamping block 4 by 3 conical surface of flange and moves right, and piston rod 2 normally declines, and valve is closed.
The pressure limiting valve group 6 includes the first two position two-way valve 61, check valve 63, the second two position two-way valve 62 and overflow valve
64, hydraulic power source is connected to axis hole by the first hydraulic tube, and the first two position two-way valve 61, check valve 63 and overflow valve 64 are sequentially communicated
On first hydraulic tube, fuel tank is connected to by the second hydraulic tube with the first hydraulic tube, and the second two position two-way valve 62 is connected in the second liquid
In pressure pipe.
First two position two-way valve 61 is post rod type two position two-way valve, and the first two position two-way valve 61 is mounted on valve casing 1,
Piston rod 2 drives the commutation of the first two position two-way valve 61.
The course of work of pressure limiting valve group 6 are as follows: as shown in Figure 1,2 upper end flange 3 of piston rod is logical when valve is in the open state
It crosses mandril and pushes the commutation of the first two position two-way valve 61, hydraulic oil enters in axis hole after check valve 63, to push clamping block 4
It is moved to the left, to be locked to piston rod 2；And in the state of accident, the downlink by force of piston rod 2 is needed, then flange 3 is applied to
Transverse component effect on clamping block 4 pushes the hydraulic oil in axis hole to be discharged from overflow valve 64, and valve is opened by force；Such as Fig. 2 institute
Show, when valve needs to close, staff or the commutation of other second two position two-way valves of HYDRAULIC CONTROL SYSTEM 62 allow axis hole to connect
Logical fuel tank, clamping block 4 lose locking effect, and flange 3 pushes 4 right lateral of clamping block.
Claims (3)
1. a kind of hydraulic locking mechanism of hydraulic headstock gear, including valve casing (1) and piston rod (2), piston rod (2) upper end is equipped with convex
Edge (3), flange (3) lower end are equipped with the conical surface, it is characterised in that: further include pressure limiting valve group (6), the pin hole that is provided in valve casing (1)
And axis hole, pin hole is interior to be equipped with clamping block (4), is equipped with piston (5) in axis hole, piston (5) is fixedly connected with clamping block (4), is locking
Block (4) are determined equipped with inclined-plane corresponding with flange (3) conical surface, and pressure limiting valve group (6) is stretched by piston (5) control clamping block (4)
Contracting.
2. a kind of hydraulic locking mechanism of hydraulic headstock gear according to claim 1, it is characterised in that: the pressure limiting valve group
It (6) include the first two position two-way valve (61), check valve (63), the second two position two-way valve (62) and overflow valve (64), hydraulic power source is logical
The first hydraulic tube connection axis hole is crossed, the first two position two-way valve (61), check valve (63) and overflow valve (64) are sequentially communicated first
On hydraulic tube, fuel tank is connected to by the second hydraulic tube with the first hydraulic tube, and the second two position two-way valve (62) connection is hydraulic second
Guan Shang.
3. a kind of hydraulic locking mechanism of hydraulic headstock gear according to claim 2, it is characterised in that: described one or two two
Port valve (61) is post rod type two position two-way valve, and the first two position two-way valve (61) is mounted on valve casing (1), piston rod (2) driving the
One two position two-way valve (61) commutation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920399511.3U CN209687837U (en) | 2019-03-27 | 2019-03-27 | A kind of hydraulic locking mechanism of hydraulic headstock gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920399511.3U CN209687837U (en) | 2019-03-27 | 2019-03-27 | A kind of hydraulic locking mechanism of hydraulic headstock gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209687837U true CN209687837U (en) | 2019-11-26 |
Family
ID=68606265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920399511.3U Active CN209687837U (en) | 2019-03-27 | 2019-03-27 | A kind of hydraulic locking mechanism of hydraulic headstock gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209687837U (en) |
-
2019
- 2019-03-27 CN CN201920399511.3U patent/CN209687837U/en active Active
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