A kind of vehicle guidance device
Technical field
The utility model relates to vehicular field, more particularly, and particularly a kind of vehicle guidance device.
Background technique
Along with the development of modern science and technology, vehicle enters into daily life gradually, guiding device is then a kind of important auxiliary facility on vehicle, it uses widely, especially on some engineering vehicles, it both can move on vehicle, can be again that the cable, pull bar etc. of vehicle provide support, leading role.
In prior art, the compartment of a lot of vehicle is all provided with guiding device, this guide mechanism generally comprises guide wheel and conductor rope, during concrete enforcement, conductor rope is fixed on the two ends in compartment, is then arranged on above conductor rope by guide wheel, guide wheel runs along the track of conductor rope, for providing support and leading role to other pull bar, cover plates etc. on vehicle, pull bar, cover plate etc. are run according to the track of setting.Generally speaking, existing vehicle guidance device can solve certain technical problem, provides support to a certain extent, leading role to the operation of pull bar, cover plate.But guide wheel is set directly at above conductor rope when the existing apparatus due to the type uses, and during work, guide wheel is easy to swing, have a strong impact on the stationarity of guiding process; In addition, because whole guiding device is with conductor rope role-taking power, lifting surface area is little, and the conductor rope of unit area is stressed very large, and also need the active force bearing miscellaneous part when work, therefore conductor rope is easy to fracture, has a strong impact on the normal work of this guiding device.
In sum, how to provide a kind of and good leading role can be provided, the stationarity of guiding process can be ensured again, and the lower vehicle guidance device of rate of fault becomes those skilled in the art's problem demanding prompt solution.
Model utility content
The technical problems to be solved in the utility model is for providing a kind of vehicle guidance device, and this vehicle guidance device, by its structural design, can provide good leading role, can ensure again the stationarity of guiding process, and rate of fault be lower.
A kind of vehicle guidance device, comprise mounting plate, described mounting plate is provided with guide wheel, described guide wheel comprises upper block and lower tumbler, the medial axis of described upper block and lower tumbler is arranged at same vertical plane, the excircle of described upper block is provided with upper rail, the excircle of described lower tumbler is provided with lower guide channel, the cross section of described upper rail and lower guide channel is the arc surface of same radius size, be provided with guide rail between described upper rail and lower guide channel, described guide rail is cylindric guide rail and this cylindric guide rail radius is equal with described arc surface radius.
Preferably, described cylindric guide rail two ends are provided with baffle plate.
Preferably, described guide wheel is provided with protective housing.
Preferably, described guide rail is provided with positioning rod.
The beneficial effects of the utility model are: the vehicle guidance device that the utility model provides is by arranging upper rail and lower rail, the excircle of simultaneously upper block arranges upper rail, the excircle of lower tumbler arranges lower guide channel, cylindric guide rail is set between upper rail and lower rail again, so, cylindric guide rail can be installed between upper rail and lower guide channel, both traditional guide function can be met, the process that simultaneously leads can not swing, device stationarity is higher, and the lifting surface area of cylindric guide rail is larger in guiding process, effectively reduce the unit area active force of cylindric guide rail, cylindric guide rail can not rupture easily, plant failure rate significantly reduces.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is the overall structure schematic diagram of a kind of vehicle guidance device of the utility model;
Fig. 2 is that the A-A of a kind of vehicle guidance device of the utility model is to sectional view.
Embodiment
Technological scheme in the application is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present application, technological scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.
Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the application's protection.
See accompanying drawing 1 and accompanying drawing 2, accompanying drawing 1 is to the specific embodiment that figure 2 provides a kind of vehicle guidance device, and wherein, accompanying drawing 1 is the overall structure schematic diagram of this vehicle guidance device, and accompanying drawing 2 is that the A-A of this vehicle guidance device is to sectional view.
If accompanying drawing 1 is with shown in accompanying drawing 2, this vehicle guidance device comprises mounting plate 1, and mounting plate 1 provides basis for giving the installation of following parts, for the shape of mounting plate 1, common riser can be selected, also can select H-shaped plate, only otherwise to the motion of this vehicle guidance device produce and interfere.Namely a kind of H-shaped plate has been selected in the present embodiment.
Mounting plate 1 is provided with guide wheel, guide wheel comprises upper block 2 and lower tumbler 3, upper block 2 is arranged at same vertical plane with the medial axis of lower tumbler 3, for the quantity of upper block 2 with lower tumbler 3, one group can be arranged, also can arrange many groups, concrete and can need the structure of guide element to determine according to the size of installing space.Namely two groups of upper blocks 2 and lower tumbler 3 is provided with in the present embodiment.
The excircle of upper block 2 is provided with upper rail 201, the excircle of lower tumbler 3 is provided with lower guide channel 301, upper rail 201 and the cross section of lower guide channel 301 are the arc surface of same radius size, so, by suitably regulating the distance between upper block 2 and lower tumbler 3 medial axis, can make between upper rail 201 and lower guide channel 301, to form a poroid transit passage, for the installation of following guide rail 4.
Be provided with guide rail 4 between upper rail 201 and lower guide channel 301, guide rail 4 is cylindric guide rail and this cylindric guide rail radius is equal with described arc surface radius.So, guide rail about 4 cylndrical surface that this programme provides can be fitted between upper rail 201 and lower guide channel 301 closely, can increase the lifting surface area of guide rail 4 significantly.
Generally, the vehicle guidance device that the utility model provides is by arranging upper rail 2 and lower rail 3, the excircle of simultaneously upper block 2 arranges upper rail 201, the excircle of lower tumbler 3 is arranged lower guide channel 301, again cylindric guide rail is set between upper rail 2 and lower rail 3, cylindric guide rail card is contained between upper rail 201 and lower guide channel 301, both traditional guide function can be met, the process that simultaneously leads can not swing, device stationarity is higher, and the lifting surface area of cylindric guide rail is larger in guiding process, effectively reduce the unit area active force of cylindric guide rail, cylindric guide rail can not rupture easily, plant failure rate significantly reduces.
In the present embodiment, derail when rolling to prevent upper block 2 and lower tumbler 3, cylindric guide rail two ends are provided with baffle plate 5.So, when upper block 2 and lower tumbler 3 are rolled to cylindric guide rail two ends, can be blocked by baffle plate 5, prevent it from continuing to move ahead.
In the present embodiment, in order to prevent guide wheel from being corroded by rainwater or other materials, guide wheel is provided with protective housing 6.
In the present embodiment, for when preventing guide rail 4 long, guide rail 4 is shaken, be the stationarity of intensifier simultaneously, guide rail 4 be provided with positioning rod 7.
Above a kind of vehicle guidance device provided by the utility model is described in detail.Apply specific case herein to set forth principle of the present utility model and mode of execution, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection domain of the utility model claim.