Pressure locating guide device
The present invention relates to mechanical equipment technical field, and in particular to pressure locating guide device.
In tower crane lifting process, the guider branch on the crossbeam of jacking stock is fixedly connected in standard section of tower crane master
On the outside of chord member, play guided bearing, and can move up and down.If guider and main chord of standard section in lifting process
It is unable to reliable contacts, the standard knot of bottom（Fixed component）Cannot operative constraint tower crane top movable part, apply lifting
Work produces very big potential safety hazard, it is likely that triggers serious accident.Therefore, guider is needed to use to prevent here
Guider is relatively common parts in conventional mechanical devices, and in general guider is all to fix not
Dynamic, spigot surface is vertically had no problem, but relative motion can be often produced between two parts up and down of tower crane, using normal
The guider of rule can not solve the problem.
Application No. 201020186994.8, entitled tower crane add, dropped the Chinese utility model patent of section guider public
A kind of tower crane lifting and guiding device is opened, it includes directive wheel, guide wheel shaft, directive wheel fixed plate, directive wheel connecting plate, attached
Fixed plate and fixing bolt;Directive wheel is installed in directive wheel fixed plate by guide wheel shaft, and directive wheel fixed plate, which is fixed, to be connected
It is connected to the side of directive wheel connecting plate;The position up and down of directive wheel connecting plate and attached fixed plate is correspondingly provided with bolt connection respectively
Hole, and the spacing between the bolt connecting hole at position is more than or equal to the crossbeam of tower crane jacking stock in the height direction up and down
Thickness, attached fixed plate pass through the fixation that is arranged between its bolt connecting hole and the corresponding bolt connecting hole of directive wheel connecting plate
Bolt connection can effectively ensure that tower crane directive wheel and main chord of standard section in lifting process in the opposite side of directive wheel connecting plate
Reliable contacts, to constrain the superstructure of tower crane, it is ensured that the safe construction in tower crane lifting process.The program uses two guiding
Wheel blocks main chord of standard section from two faces, thus can effectively ensure directive wheel and main chord of standard section reliable contacts,
It is larger to the frictional force of main chord so that main chord is more easy to grind but two guide rods of this structure directly contact main chord
Damage, reduces service life；It can not also be automatically adjusted when unbalance loading occurs, make guiding that deviation occur, cause tower crane to lift
When produce guider and the insecure problem of main chord of standard section reliable contacts, have impact on the security of tower crane.
The content of the invention
It is an object of the invention to for deficiency of the prior art, and pressure locating guide device is provided, it can subtract
Small directive wheel improves the service life of tower crane to the frictional force of main chord；Meanwhile it can solve the problem that between directive wheel and main chord
During generation unbalance loading, it can not automatically adjust and to be oriented to the problem of deviation occurs.
The purpose of the present invention is achieved through the following technical solutions：
Pressure locating guide device is provided, including square body outer box and the interior inner cylinder for being placed on the outer box, inner cylinder are separated into by dividing plate
Ante-chamber and back cavity；Wherein, pressurization oil cylinder is provided with ante-chamber, pressurization oil cylinder is provided with oil inlet and outlet, and pressurizes between oil cylinder and inner cylinder
Gap it is relative be provided with one group of extension spring, be additionally provided with soft isolating device, in addition to end cap, end cap between extension spring and pressurization oil cylinder
Pressurization oil cylinder is fixed on ante-chamber；Multiple directive wheels are provided with back cavity, back-moving spring is provided between directive wheel and the dividing plate.
Wherein, the quantity of directive wheel is two, and corresponding back-moving spring quantity is four.
Wherein, square body spacing block is provided between two directive wheels, two directive wheels are symmetrically arranged at the two of spacing block
Wherein, end cap is the cover plate provided with multiple screws, and being provided with the middle part of cover plate can be exposed to the oil inlet and outlet of compressing cylinder
The through hole of ante-chamber.
Wherein, cover plate is circular metal plate, and the multiple screw is uniformly at its outer ring.
Wherein, end cap is relatively set with detent.
Wherein, soft isolating device is the isolating device made of soft rubber.
Beneficial effects of the present invention：
Tower crane is in lifting, it is necessary to guider and main chord of standard section reliable contacts, the standard knot of bottom（Fixed component）
The movable part on energy operative constraint tower crane top；Using pressure locating guide device provided by the invention, its directive wheel with every
Back-moving spring is provided between plate, back-moving spring when directive wheel is by certain pressure, the compressible back-moving spring of directive wheel to
In shrink certain distance so that relatively reasonable pressure is kept between directive wheel and main chord, prevent to some extent master
The excessive wear of swing arm, add the service life of tower crane.Meanwhile when serious unbalance loading occurs, due to the extension spring in ante-chamber
Soft isolating device is additionally provided between pressurization oil cylinder, the relative position that the soft isolating device causes extension spring between the oil cylinder that pressurizes
A certain degree of regulation can be carried out by putting, and during unbalance loading generation, soft isolating device can be adjusted correspondingly automatically, so that with
Back-moving spring among back cavity cooperates to be modified to unbalance loading.
Brief description of the drawings
Using accompanying drawing, the invention will be further described, but the embodiment in accompanying drawing does not form any limit to the present invention
System, for one of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to the following drawings
Other accompanying drawings.
Fig. 1 is the structural representation at first visual angle of the pressure locating guide device of the present invention.
Fig. 2 is the structural representation at second visual angle of the pressure locating guide device of the present invention.
Fig. 3 is the structural representation at the 3rd visual angle of the pressure locating guide device of the present invention
Reference in Fig. 1 to Fig. 3：
Outer box 1；
Inner cylinder 2；
Pressurize oil cylinder 3；
End cap 4, oil inlet and outlet 41, metallic plate 42, through hole 43, detent 44；
Extension spring 5；
Back-moving spring 6；
Spacing block 7；
Directive wheel 8.
The invention will be further described with the following Examples.
The offer pressure locating guide device of the present invention, as shown in Figure 1 to Figure 3, including square body outer box 1 and interior it is placed on this
The inner cylinder 2 of outer box 1, inner cylinder 2 are separated into ante-chamber and back cavity by dividing plate；Wherein, pressurization oil cylinder 3 is provided with ante-chamber, pressurization oil cylinder 3 is set
Have an oil inlet and outlet 41, and the gap pressurizeed between oil cylinder 3 and inner cylinder 2 it is relative be provided with one group of extension spring 5, extension spring 5 and the oil cylinder 3 that pressurizes
Between be additionally provided with isolating device made of soft rubber, in addition to end cap 4, the oil cylinder 3 that will pressurize of end cap 4 is fixed on ante-chamber；Back cavity
Interior to be provided with multiple directive wheels 8, the quantity of directive wheel 8 is two, and the corresponding quantity of back-moving spring 6 is two, two directive wheels 8 it
Between be provided with cylinder spacing block 7, two directive wheels 8 are symmetrically arranged at the both sides of spacing block 7, set between directive wheel 8 and dividing plate
There is back-moving spring 6, tower crane is in lifting, it is necessary to guider and main chord of standard section reliable contacts, the standard knot of bottom（It is fixed
Part）The movable part on ability operative constraint tower crane top；Using pressure locating guide device provided by the invention, it is being oriented to
Back-moving spring 6 is provided between wheel 8 and dividing plate, for back-moving spring 6 when directive wheel 8 is by certain pressure, directive wheel 8 is compressible
Back-moving spring 6 shrinks certain distance inwards so that relatively reasonable pressure is kept between directive wheel 8 and main chord, in certain journey
The excessive wear of main swing arm is prevented on degree, adds the service life of tower crane.Meanwhile when serious unbalance loading occurs, due to
Soft isolating device is additionally provided between extension spring 5 and pressurization oil cylinder 3 in ante-chamber, the soft isolating device causes extension spring 5 and pressurization
Relative position between oil cylinder 3 can carry out a certain degree of regulation, and during unbalance loading generation, soft isolating device can be carried out automatically
Corresponding adjustment, is modified so as to be cooperated with the back-moving spring 6 among back cavity to unbalance loading.
Wherein, end cap 4 is the circular metal plate 42 provided with multiple screws, and multiple screws uniformly at its outer ring, are held
Lid 4 is relatively set with detent 44, and detent 44 is used for the direction for determining end cap 4, plays a part of fool proof, cover plate middle part
The through hole 43 of ante-chamber is exposed to provided with the oil inlet and outlet 41 of compressing cylinder can be made.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of scope is protected, although being explained with reference to preferred embodiment to the present invention, one of ordinary skill in the art should
Work as understanding, technical scheme can be modified or equivalent substitution, without departing from the reality of technical solution of the present invention
Matter and scope.