CN208778547U - A kind of span winch rotary mechanism hydraulic brake system - Google Patents
A kind of span winch rotary mechanism hydraulic brake system Download PDFInfo
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- CN208778547U CN208778547U CN201821319299.7U CN201821319299U CN208778547U CN 208778547 U CN208778547 U CN 208778547U CN 201821319299 U CN201821319299 U CN 201821319299U CN 208778547 U CN208778547 U CN 208778547U
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- hydraulic
- pull rod
- oil
- brake
- spreading plate
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Abstract
The utility model discloses a kind of span winch rotary mechanism hydraulic brake systems, it includes foot-operated hydraulic drum brake, the brake arm of foot-operated hydraulic drum brake is respectively at two spreading plate lower welds, it is placed with pull rod sliding block in the prong of one spreading plate and is fastened by pin shaft and washer I with holding screw, hydraulic system is placed in the prong of another spreading plate, hydraulic cylinder is fixed with pin shaft I, one end of pull rod is sequentially arranged with nut, washer and spring, the polished rod end of the pull rod other end is threaded, and pull rod one end penetrates in pull rod sliding block and passes through nut tightening, and the pull rod other end is penetrated in oil cylinder and is screwed, and oil pipe is connected on hydraulic cylinder.The technical program increases hydraulic braking push rod on the basis of not changing original foot-operated hydraulic brake structure and using function, realizes that the switching of two kinds of hydraulic brake systems of swing mechanism is flexible, easy to operate, flexible movements and it is safe and reliable the advantages that.
Description
Technical field
The utility model relates to hydraulic brake system, it is particularly suitable for using on gantry crane.
Background technique
Swing mechanism on existing gantry crane is to be stepped on amplitude by foot-operated using foot-operated hydraulic braking and adjusted in real time
Brake pressure size and braking time, steady, the soft braking of implementation mechanism, on existing span winch rotary mechanism extensively
Using, but the disadvantage is that, foot-operated hydraulic brake system switch is mounted in the drivers' cab of gantry crane, steps on control by driver's foot
System will increase the working strength of driver when braking for a long time, and foot-operated hydraulic braking is to commonly use structure open in usual, has work can
Poor, the inconvenient defect by property.
Summary of the invention
The purpose of this utility model is to design easy to operate one kind, flexible movements, safe and reliable gantry crane revolution
Organization hydraulic pressure brake apparatus.
The task of the utility model is done in such a way that it includes foot-operated hydraulic drum brake, it is characterised in that: foot-operated
The brake arm of hydraulic drum brake is sliding respectively at being placed with pull rod in two spreading plate lower welds, the prong of a spreading plate
Block is simultaneously fastened by pin shaft and washer I with holding screw, and hydraulic system is placed in the prong of another spreading plate, and hydraulic cylinder is used
Pin shaft I is fixed, and one end of pull rod is sequentially arranged with nut, washer and spring, and the polished rod end of the pull rod other end is machined with spiral shell
Line, and pull rod one end penetrates in pull rod sliding block and by nut tightening, and the pull rod other end is penetrated in oil cylinder and screwed, and hydraulic cylinder
On be connected with oil pipe.And spreading plate shaped upper part is in prong shape, spreading plate quantity is four, corresponding two spreadings of a brake arm
The top package assembly of plate lower weld, four spreading plates is identical.The hydraulic system includes oil pump, oil pressure gauge, reversed position three
Position four-way solenoid valve, hydraulic cylinder, positive position three position four-way electromagnetic valve, two-position four-way solenoid valve, draining solenoid valve, oil pipe, and oil
Pump is to provide hydraulic oil by oil pump for hydraulic cylinder, and oil pressure gauge, draining solenoid valve and reversed are equipped on the operation of oil pump oil circuit
Position three-position four-way valve is equipped with two-position four-way solenoid valve and positive position three position four-way electromagnetic valve on oil return line.
The technical program increases hydraulic braking on the basis of not changing original foot-operated hydraulic brake structure and using function
Push rod realizes that the switching of two kinds of hydraulic brake systems of swing mechanism is flexible, easy to operate, flexible movements and safe and reliable etc. excellent
Point.
Detailed description of the invention:
Fig. 1 is the structural schematic diagram of the utility model；Fig. 2 is the left view of Fig. 1；Fig. 3 is the A-A cross-sectional view of Fig. 1；Fig. 4
It is the B-B cross-sectional view of Fig. 1；Fig. 5 is the C-C cross-sectional view of Fig. 1；Fig. 6 is hydraulic schematic.
Drawing explanation: 1, foot-operated hydraulic drum brake, 2, pin shaft, 3, spreading plate, 4, spring, 5, washer, 6, nut, 7,
Pull rod, 8, hydraulic system, 9, pin shaft I, 10, pull rod guide block, 11, washer I, 12, holding screw, 13, oil pump, 14, oil pressure gauge,
15, reversed position three position four-way electromagnetic valve, 16, hydraulic cylinder, 17, positive position three position four-way electromagnetic valve, 18, two-position four-way solenoid valve,
19, draining solenoid valve, 20, oil pipe.
Specific embodiment
Specific embodiment is as shown in Figure 1 and Figure 2, and the technical program includes existing foot-operated hydraulic drum brake 1, and makes
Respectively at two 3 lower welds of spreading plate on the brake arm of dynamic device, and spreading plate shaped upper part is in prong shape, spreading plate
It is placed with pull rod sliding block 10 in prong and is fastened by pin shaft 2 and the holding screw 12 of washer 11 I, the prong of another spreading plate
In be placed with hydraulic system 8, hydraulic cylinder 16 is fixed with pin shaft 9 I, and one end of pull rod 7 is sequentially arranged with nut 6, washer 5 and spring 4,
The polished rod end of the pull rod other end is threaded, and pull rod one end penetrates in pull rod sliding block 10 and screwed by nut 6,
And the pull rod other end is penetrated in oil cylinder and is screwed, and oil pipe 20 is connected on hydraulic cylinder 16.
Brake arm on the existing foot-operated hydraulic drum brake is two, and spreading plate quantity is four, a braking
Arm corresponds to two spreading plate lower welds, and the top package assembly of four spreading plates is identical.The foot-operated hydraulic drum brake
It is that the prior art is no longer described in detail.
The hydraulic system 8 includes oil pump 13, oil pressure gauge 14, reversed position three position four-way electromagnetic valve 15, hydraulic cylinder 16, forward direction
Position three position four-way electromagnetic valve 17, two-position four-way solenoid valve 18, draining solenoid valve 19, oil pipe 20, (as shown in Figure 6) and oil pump 13 are
Hydraulic oil is provided by oil pump 13 for hydraulic cylinder 16, oil pressure gauge 14,19 and of draining solenoid valve are installed on the operation of oil pump oil circuit
Reversed position three-position four-way valve 15 is equipped with two-position four-way solenoid valve 18 and positive position three position four-way electromagnetic valve 17 on oil return line
(as shown in Figure 6).
The technical program is combined by existing foot-operated hydraulic drum brake and hydraulic braking and is completed, by stirring crane rotation
Turn operating stick (left or right rotation) and realize releasing braking function, makes hydraulic cylinder for working retractable state.Pedal brake switch
Also hydraulic braking can be released, realizes that two kinds of hydraulic brake systems of swing mechanism are normally opened, normally closed flexible switching.
When work, open hydraulic oil pump 13 work when, system by the positive position 17 of turn on automatically three position four-way electromagnetic valve, let out
Solenoid 19, which is powered, stops draining, and pressure oil forward direction, which enters operating cylinder, makes oil cylinder stretch out opening brake.Brake is complete
It opens, three position four-way electromagnetic valve movement return, draining solenoid valve 19 power off when opening a sluice gate limit switch movement, and pressure oil stops entering
Working cylinder, while the movement of two-position four-way solenoid valve 18 makes the release simultaneously of oil cylinder oil inlet and outlet, the hydraulic oil that oil pump is provided is direct
Fuel tank is returned to, the disengaging oil pocket pressure of oil cylinder is zero at this time, and hydraulic cylinder piston can be under the drive of brake armed lever certainly
By stretching.In this case, original pedal brake device can work normally, and realize two sets of hydraulic brake systems of swing mechanism
Normally opened, normally closed flexible switching.
When the braking of need of work long period, electric control system controls two-position four-way solenoid valve 18 acts return and closes oil return
Oil circuit, while the reversed position three position four-way electromagnetic valve 15 to link is powered to the movement of reverse operation position, draining solenoid valve 19 and stops letting out
Oil, pressure oil makes piston bounce back the reversed fuel feeding of operating cylinder through reversed three position four-way electromagnetic valve, and drives the braking of brake
Armed lever movement makes brake be in on-position.Oil cylinder bounces back in place, and closing the movement of lock limit switch makes the 3-position 4-way electricity of linkage
Magnet valve power loss returns to middle position, the power-off of draining solenoid valve, cylinder circuit pressure maintaining at this time, to realize the braking function of long period.
When work terminates to need to shut down, hydraulic power unit is turned off after so that brake is in on-position.
Claims (3)
1. a kind of span winch rotary mechanism hydraulic brake system, it includes foot-operated hydraulic drum brake, it is characterised in that:
The brake arm of foot-operated hydraulic drum brake is respectively at being placed with drawing in two spreading plate lower welds, the prong of a spreading plate
Bar sliding block is simultaneously fastened by pin shaft and washer I with holding screw, and hydraulic system is placed in the prong of another spreading plate, hydraulic
Cylinder is fixed with pin shaft I, and one end of pull rod is sequentially arranged with nut, washer and spring, the polished rod end processing of the pull rod other end
There is screw thread, and pull rod one end penetrates in pull rod sliding block and by nut tightening, and the pull rod other end is penetrated in oil cylinder and screwed, and liquid
Oil pipe is connected on cylinder pressure.
2. a kind of span winch rotary mechanism hydraulic brake system according to claim 1, it is characterised in that: and spreading
Plate shaped upper part is in prong shape, and spreading plate quantity is four, the corresponding two spreading plate lower welds of a brake arm, four spreadings
The top package assembly of plate is identical.
3. a kind of span winch rotary mechanism hydraulic brake system according to claim 1, it is characterised in that: the liquid
Pressure system includes oil pump, oil pressure gauge, reversed position three position four-way electromagnetic valve, hydraulic cylinder, positive position three position four-way electromagnetic valve, two four
Three-way electromagnetic valve, draining solenoid valve, oil pipe, and oil pump is to provide hydraulic oil by oil pump for hydraulic cylinder, on the operation of oil pump oil circuit
Oil pressure gauge, draining solenoid valve and reversed position three-position four-way valve are installed, two-position four-way solenoid valve and just is installed on oil return line
To position three position four-way electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821319299.7U CN208778547U (en) | 2018-08-16 | 2018-08-16 | A kind of span winch rotary mechanism hydraulic brake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821319299.7U CN208778547U (en) | 2018-08-16 | 2018-08-16 | A kind of span winch rotary mechanism hydraulic brake system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208778547U true CN208778547U (en) | 2019-04-23 |
Family
ID=66156968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821319299.7U Active CN208778547U (en) | 2018-08-16 | 2018-08-16 | A kind of span winch rotary mechanism hydraulic brake system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208778547U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757779A (en) * | 2018-08-16 | 2018-11-06 | 河南起重机器有限公司 | A kind of span winch rotary mechanism hydraulic brake system |
-
2018
- 2018-08-16 CN CN201821319299.7U patent/CN208778547U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757779A (en) * | 2018-08-16 | 2018-11-06 | 河南起重机器有限公司 | A kind of span winch rotary mechanism hydraulic brake system |
| CN108757779B (en) * | 2018-08-16 | 2024-07-19 | 河南起重机器有限公司 | Hydraulic braking device of slewing mechanism of gantry crane |
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