CN219237385U - Transfer device for skid type helicopter - Google Patents
Transfer device for skid type helicopter Download PDFInfo
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- CN219237385U CN219237385U CN202223361945.5U CN202223361945U CN219237385U CN 219237385 U CN219237385 U CN 219237385U CN 202223361945 U CN202223361945 U CN 202223361945U CN 219237385 U CN219237385 U CN 219237385U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
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Abstract
The embodiment of the utility model discloses a transfer device for a skid-type helicopter, wherein a pneumatic tire is connected with a wheel disc assembly through a flange, a wheel shaft arranged in the wheel disc assembly is connected with a 1 st connecting plate through a rocker arm, a shaft body of a 2 nd connecting plate is inserted into a bearing of the 1 st connecting plate, a hydraulic jack is fixedly arranged between the 2 nd connecting plate and an upper connecting plate, the top end of a guide shaft is connected with the upper connecting plate, the bottom end of the guide shaft is connected with a lower connecting plate, and the lower connecting plate is connected with a U-shaped fork lug through a pin shaft; be provided with 2 draw-in grooves on the U type fork ear, connect the skid axostylus axostyle of helicopter both sides respectively through 2 draw-in grooves. The technical scheme provided by the embodiment of the utility model solves the problems of inconvenient short-distance transportation process, complex operation and higher cost of the traditional skid-type helicopter.
Description
Technical Field
The utility model relates to the technical field of helicopter transportation devices, in particular to a transportation device for a skid-type helicopter.
Background
The landing gear of the helicopter mainly has two forms of wheels and skid type, and the helicopter with the wheels can use a special traction rod or a traction vehicle to draw the aircraft in the process of transferring or transferring.
The skid type helicopter lands on the two sides of the helicopter body by 1 pry bar, and the skid type helicopter has no ground movement capacity, so that when the skid type helicopter is transported in a short-distance traction way, the skid type helicopter is transported by means of a transporting device or by using a hoisting transport vehicle, the operation is inconvenient, and the cost is high.
Therefore, it is needed to provide a transfer device which is easy to operate, convenient to install, flexible to use, and capable of ensuring that a sled type helicopter can transfer or move in a short distance.
Disclosure of Invention
The purpose of the utility model is that: in order to solve the technical problems, the embodiment of the utility model provides a transfer device for a skid-type helicopter, which aims to solve the problems that the conventional skid-type helicopter is inconvenient in a short-distance transfer process, complex in operation and high in cost.
The technical scheme of the utility model is as follows: the embodiment of the utility model provides a transfer device for a skid helicopter, which comprises: the steering device comprises a 1 st connecting plate 1, a 2 nd connecting plate 2, a U-shaped fork lug 3, a pin shaft 4, a lower connecting plate 5, an upper connecting plate 6,2 guide shafts 7, a steering handle 10, 2 wheel disc assemblies 12, a wheel shaft 13, a rocker arm 14, 2 pneumatic tires 16 and a hydraulic jack 17;
the two pneumatic tires 16 are respectively connected with the 2 wheel disc assemblies 12 through flanges, the wheel shaft 13 arranged in each wheel disc assembly 12 is connected with one side of the 1 st connecting plate 1 through a rocker arm 14, and the shaft body of the 2 nd connecting plate 2 is inserted into the bearing of the 1 st connecting plate 1 and locked through nuts;
the hydraulic jack 17 is fixedly arranged above the 2 nd connecting plate 2, the upper connecting plate 6 is fixedly arranged above the hydraulic jack, the top ends of the 2 guide shafts 7 are respectively connected to the front side and the rear side of the upper connecting plate 6, the bottom ends penetrate through the 2 nd connecting plate 2 and then are respectively connected to the front side and the rear side of the lower connecting plate 5 below the 1 st connecting plate 1, and the lower connecting plate 5 is connected with the U-shaped fork lugs 3 with downward openings through the pin shafts 4;
the front side end face of the U-shaped fork lug 3 is symmetrically provided with 2 clamping grooves, and the clamping grooves are used for being respectively connected with skid shaft rods on two sides of the helicopter before the skid type helicopter is hauled by the transfer device.
Alternatively, in a transfer device for a skid helicopter as described above,
in the transfer device for the skid-type helicopter, an upper connecting piece 6 and a lower connecting plate 5 which are fixedly connected through 2 guide shafts 7 and a U-shaped fork lug 3 which is fixedly connected with the lower connecting plate 5 form a hydraulic linkage mechanism in the transfer device, and the hydraulic linkage mechanism is controlled to wholly rise or wholly fall through operating a hydraulic jack 17.
Optionally, in the transfer device for a skid helicopter as described above, the transfer device further includes: deep groove ball bearings 18, thrust ball bearings 19, shaft sleeves 11;
the bearing seat is arranged in the middle of the 1 st connecting plate 1, the shaft sleeve 11 is pressed in the bearing seat, the deep groove ball bearing 18 and the thrust ball bearing 19 are sequentially arranged in the shaft sleeve 11 from bottom to top, and after the middle shaft body of the 2 nd connecting plate 2 is inserted into the deep groove ball bearing 18 and the thrust ball bearing 19 of the 1 st connecting plate 1, the 2 nd connecting plate 2 can do rotary motion relative to the 1 st connecting plate 1 through the combination of the 2 bearings.
Alternatively, in a transfer device for a skid helicopter as described above,
the 2 nd connection plate 2 includes: a plate assembly 2-1, a linear bearing 2-2 and a circlip 2-3 for holes;
the middle part of the plate assembly 2-1 is provided with a shaft body which is matched with the 1 st connecting plate 1, the front side and the rear side of the plate assembly 2-1 are provided with 1 bearing seats, the linear bearings 2-2 are arranged through the bearing seats, and each linear bearing 2-2 is internally provided with an elastic retainer ring 2-3 for holes;
the bottom ends of the 2 guide shafts 7 specifically penetrate through the linear bearings 2-2 on the front side and the rear side of the 2 nd connecting plate 2 and are fixedly connected with the front side and the rear side of the lower connecting plate 5, and the two linear bearings 2-2 arranged front and rear play a guide role in the movement of the upper connecting plate 6 and the lower connecting plate 5.
Optionally, in the transfer device for a skid helicopter as described above, the transfer device further includes: 2 end caps 15;
each of the wheel assemblies 12 includes: a disk body 12-1, a 1 st angular contact ball bearing 12-2 and a 2 nd angular contact ball bearing 12-3;
in the bearing hole of the tray body 12-1, an axle 13 is installed through a 1 st angular contact ball bearing 12-2 and a 2 nd angular contact ball bearing 12-3 which are respectively arranged at the inner end and the outer end, the axle end of the axle 13 extending out of the tray body 12-1 is connected with one side of the 1 st connecting plate 1 through a rocker arm 14, and the rocker arm 14 is limited to slide out through an end cover 15 installed at the axle end of the axle 13.
Optionally, in the transfer device for a skid helicopter as described above, the transfer device further includes: a handle 8 and a steering handle 10;
a handle 8 is arranged at the top of the upper connecting plate 6 and is used for carrying the transferring device through the handle 8;
the rear end of the 1 st connecting plate 1 is provided with a steering handle 10, and the movement direction of the transfer device is controlled through the steering handle 10.
Optionally, in the transfer device for a skid helicopter as described above, the transfer device further includes: a fixing pin 9;
the 1 st connecting plate 1 and the 2 nd connecting plate 2 are fixedly connected through a fixing pin 9 so as to limit the relative rotation movement between the 2 nd connecting plate 2 and the 1 st connecting plate 1, thereby limiting the steering operation of the transferring device.
Alternatively, in a transfer device for a skid helicopter as described above,
the transfer device is provided with U-shaped fork lugs 3 with various types and specifications, and the U-shaped fork lugs 3 are replaced, so that the transfer device can be matched to complete transfer work of different types.
The utility model has the beneficial effects that: the embodiment of the utility model provides a transfer device for a skid-type helicopter, wherein a pneumatic tire 16 is adopted as a moving wheel of the transfer device, a hydraulic jack 17 is combined as a power source for jacking the helicopter, and a wheel set formed by 2 pneumatic tires can rotate through structural arrangement. The transferring device provided by the embodiment of the utility model can complete the loading and unloading work of the transferring device without using an external tool, and is simple and convenient to operate; in addition, as the wheel group has a steering function, the movement is more flexible and free in the transfer process of the helicopter. Furthermore, the transfer device for the skid-type helicopter provided by the embodiment of the utility model has the advantages of simple structure, convenience in operation, and functions of straight line walking and steering, and can be suitable for transferring of different types of helicopters on the premise of meeting the bearing requirement by replacing the U-shaped fork lug 3 below, and can improve the work efficiency of helicopter transferring and reduce the manufacturing and maintenance cost.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate and do not limit the utility model.
Fig. 1 is a schematic three-dimensional structure of a transfer device for a sled helicopter according to an embodiment of the present utility model;
FIG. 2 is a front view of a transfer device for a skid helicopter provided by the embodiment of FIG. 1;
FIG. 3 is a bottom view of the transfer device for the skid helicopter provided by the embodiment of FIG. 1;
FIG. 4 is a cross-sectional view of B-B in a transfer device for a sled helicopter provided by the embodiment of FIG. 2;
fig. 5 is a cross-sectional view of A-A in the transfer device for a sled helicopter provided by the embodiment of fig. 3.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in detail hereinafter with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be arbitrarily combined with each other.
The background art already shows that the current skid type helicopter has the problems of inconvenient short-distance transportation process, complex operation and higher cost. In addition, the skid-type tractor wheels which are commonly used for the skid-type helicopter at present do not have steering function and can only move linearly.
In order to solve the problems that a skid-type helicopter is inconvenient in a short-distance transferring process, complex in operation and high in cost, the embodiment of the utility model provides a transferring device for the skid-type helicopter, which is a towing wheel with a self-lifting function and a steering function, and the transferring device can ensure that the skid-type helicopter is simple to operate in the transferring and moving process, and can finish the loading and unloading work of the towing wheel without other external tools; in addition, the transfer device has a steering function, and the flexible and convenient movement of the airplane in the use process is ensured.
The following specific embodiments may be combined with each other, and some embodiments may not be repeated for the same or similar concepts or processes.
Fig. 1 is a schematic three-dimensional structure of a transfer device for a skid-type helicopter according to an embodiment of the present utility model, fig. 2 is a front view of the transfer device for the skid-type helicopter according to the embodiment shown in fig. 1, and fig. 3 is a bottom view of the transfer device for the skid-type helicopter according to the embodiment shown in fig. 1. As shown in fig. 1 to 3, the main structure of the transfer device for a sled helicopter provided by the embodiment of the utility model includes: the steering wheel comprises a 1 st connecting plate 1, a 2 nd connecting plate 2, a U-shaped fork lug 3, a pin shaft 4, a lower connecting plate 5, an upper connecting plate 6,2 guide shafts 7, a steering handle 10, 2 wheel disc assemblies 12, a wheel shaft 13, a rocker arm 14, 2 pneumatic tires 16 and a hydraulic jack 17.
In the structure of the transfer device for the skid-type helicopter shown in fig. 1 to 3, 2 pneumatic tires 16 are respectively connected with 2 wheel disc assemblies 12 through flanges, an axle 13 installed in each wheel disc assembly 12 is connected with one side of a 1 st connecting plate 1 through a rocker arm 14, and an axle body of the 2 nd connecting plate 2 is inserted into a bearing of the 1 st connecting plate 1 and is locked through nuts.
According to the embodiment of the utility model, a hydraulic jack 17 is fixedly arranged above a 2 nd connecting plate 2, an upper connecting plate 6 is fixedly arranged above the hydraulic jack, the top ends of 2 guide shafts 7 are respectively connected to the front side and the rear side of the upper connecting plate 6, the bottom ends of the guide shafts penetrate through the 2 nd connecting plate 2 and then are respectively connected to the front side and the rear side of a lower connecting plate 5 below a 1 st connecting plate 1, and the lower connecting plate 5 is connected with a U-shaped fork lug 3 with a downward opening through a pin shaft 4.
The front end face of the U-shaped fork lug 3 is symmetrically provided with 2 clamping grooves, and the clamping grooves are used for being respectively connected with skid shaft rods on two sides of the helicopter before the skid helicopter is hauled by the transfer device.
In the structure of the transfer device provided by the embodiment of the utility model, as the upper end face and the lower end face of the 2 guide shafts 7 are respectively fixedly connected with the upper connecting plate 6 and the lower connecting plate 5, and the guide shafts 7 penetrate through the 2 nd connecting plate 2, the 2 guide shafts play a guiding role; in addition, an upper connecting piece 6 and a lower connecting plate 5 which are fixedly connected through 2 guide shafts 7 and a U-shaped fork lug 3 which is fixedly connected with the lower connecting plate 5 form a hydraulic linkage mechanism in the transfer device, and the hydraulic linkage mechanism can be controlled to wholly ascend or wholly descend by operating a hydraulic jack 17; and the height of the hydraulic linkage mechanism moving up and down, the range of movement depends on the stroke of the hydraulic jack 17.
As shown in fig. 4, a cross-sectional view of B-B in a transfer device for a sled helicopter is provided in the embodiment shown in fig. 2. The transfer device provided by the embodiment of the utility model further comprises: deep groove ball bearings 18, thrust ball bearings 19 and shaft sleeve 11.
In the concrete implementation of the utility model, the middle part of the 1 st connecting plate 1 is provided with a bearing seat, a shaft sleeve 11 is pressed in the bearing seat, a deep groove ball bearing 18 and a thrust ball bearing 19 are sequentially arranged in the shaft sleeve 11 from bottom to top, and after the middle shaft body of the 2 nd connecting plate 2 is inserted into the deep groove ball bearing 18 and the thrust ball bearing 19 of the 1 st connecting plate 1, the 2 nd connecting plate 2 can rotate relative to the 1 st connecting plate 1 through the combination of the 2 bearings.
In the embodiment of the utility model, through the deep groove ball bearing 18 and the thrust ball bearing 19 which are arranged in the 1 st connecting plate 1, the steering movement of the wheel set in the moving process can be ensured by adopting the combination of 2 bearings.
As shown in fig. 4, the 2 nd connection board 2 in the embodiment of the present utility model specifically includes: a plate assembly 2-1, a linear bearing 2-2 and a circlip 2-3 for holes.
In specific implementation, the middle part of the plate assembly 2-1 is provided with a shaft body which is matched with the 1 st connecting plate 1, the front side and the rear side of the plate assembly 2-1 are provided with 1 bearing seat which is used for installing the linear bearings 2-2 through the bearing seats, and each linear bearing 2-2 is internally provided with a hole elastic retainer ring 2-3.
Correspondingly, the bottom ends of the 2 guide shafts 7 specifically penetrate through the linear bearings 2-2 on the front side and the rear side of the 2 nd connecting plate 2, are fixedly connected with the front side and the rear side of the lower connecting plate 5, and play a role in guiding the movement of the upper connecting plate 6 and the lower connecting plate 5 through the two linear bearings 2-2 arranged front and rear.
According to the transfer device for the skid-type helicopter, which adopts the structure, when the hydraulic jack 17 stretches, the skid of the helicopter is lifted or put down through the up-and-down motion of the hydraulic linkage mechanism formed by the upper connecting plate 6, the guide shaft 7, the lower connecting plate 5, the pin shaft 4 and the U-shaped fork lug 3.
As shown in fig. 5, a cross-sectional view of A-A in a transfer device for a sled helicopter is provided in the embodiment shown in fig. 3. The transfer device provided by the embodiment of the utility model further comprises: 2 end caps 15.
As shown in fig. 5, each wheel disc assembly 12 in the embodiment of the present utility model includes: the disc 12-1, the 1 st angular ball bearing 12-2 and the 2 nd angular ball bearing 12-3.
In the structure of the wheel disc assembly 12, a wheel shaft 13 is arranged in a bearing hole of a disc body 12-1 through a 1 st angular contact ball bearing 12-2 and a 2 nd angular contact ball bearing 12-3 which are respectively arranged at the inner end and the outer end, the shaft end of the wheel shaft 13 extending out of the disc body 12-1 is connected with one side of a 1 st connecting plate 1 through a rocker arm 14, and the rocker arm 14 is limited to slide out through an end cover 15 arranged at the shaft end of the wheel shaft 13.
In practical application, the transfer device for the skid-type helicopter provided by the embodiment of the utility model further comprises: a handle 8 provided at the top of the upper connection plate 6, and a steering handle 10 provided at the rear end of the 1 st connection plate 1; wherein the handle 8 can be used as a force application point of the whole transporting device; the steering handle 10 is a steering handle for performing steering operation of the entire transfer device.
Further, the transfer device for a skid helicopter provided by the embodiment of the utility model is characterized by further comprising: a fixing pin 9.
In a specific embodiment, the 1 st connecting plate 1 and the 2 nd connecting plate 2 are fixedly connected through a fixing pin 9, so that the relative rotation movement between the 2 nd connecting plate 2 and the 1 st connecting plate 1 can be limited, and the whole transfer device can not be subjected to steering operation.
When the transfer device needs to be turned, after the fixing pins 9 on the 1 st connecting plate 1 and the 2 nd connecting plate 2 are pulled out, the turning handle 10 can be operated, and the 1 st connecting plate 1 drives the wheel set to perform turning movement.
In the embodiment of the utility model, the 1 st connecting plate 1 and the 2 nd connecting plate 2 can be fixed by using the fixing pin 9, when the fixing pin 9 is fixed, the wheel group of the transfer device cannot perform steering movement, and when the fixing pin 9 is released, the wheel group of the transfer device can perform steering movement.
Further, in the transfer device for the skid-type helicopter provided by the embodiment of the utility model, the U-shaped fork lugs 3 with various types and specifications can be configured, and the transfer device can be matched to complete transfer work of different types by replacing the U-shaped fork lugs 3.
The embodiment of the utility model provides a transfer device for a skid-type helicopter, wherein a pneumatic tire 16 is adopted as a moving wheel of the transfer device, a hydraulic jack 17 is combined as a power source for jacking the helicopter, and a wheel set formed by 2 pneumatic tires can rotate through structural arrangement. The transferring device provided by the embodiment of the utility model can complete the loading and unloading work of the transferring device without using an external tool, and is simple and convenient to operate; in addition, as the wheel group has a steering function, the movement is more flexible and free in the transfer process of the helicopter. Furthermore, the transfer device for the skid-type helicopter provided by the embodiment of the utility model has the advantages of simple structure, convenience in operation, and functions of straight line walking and steering, and can be suitable for transferring of different types of helicopters on the premise of meeting the bearing requirement by replacing the U-shaped fork lug 3 below, and can improve the work efficiency of helicopter transferring and reduce the manufacturing and maintenance cost.
The following schematically illustrates an implementation of a transfer device for a sled helicopter according to an embodiment of the present utility model by way of a specific implementation example.
Example of implementation
Referring to fig. 1 to 5, a transfer device for a sled helicopter according to this embodiment specifically includes: the steering device comprises a 1 st connecting plate 1, a 2 nd connecting plate 2, a U-shaped fork lug 3, a pin shaft 4, a lower connecting plate 5, an upper connecting plate 6,2 guide shafts 7, a handle 8, a fixing pin 9, a steering handle 10, a shaft sleeve 11, 2 wheel disc assemblies 12, a wheel shaft 13, a rocker arm 14, an end cover 15, 2 pneumatic tires 16, a hydraulic jack 17, a deep groove ball bearing 18 and a thrust ball bearing 19.
The installation mode of the transfer device for the skid type helicopter is as follows: the pneumatic tire (16) is respectively connected with the wheel disc assemblies (12) through flanges, the wheel shafts (13) which are arranged in the wheel disc assemblies (12) are connected with the connecting plate (1) through rocker arms (14), the shaft bodies of the connecting plate (2) are inserted into the bearings of the connecting plate (1), the connecting plate (1) is locked by nuts, a hydraulic jack (17) is arranged above the connecting plate (2), an upper connecting plate (6) is arranged above the hydraulic jack, the upper connecting plate (6) is respectively fixed with the top ends of the 2 guide shafts (7), after the bottom ends of the 2 guide shafts (7) pass through the 2 linear bearings (2-2) of the 2 connecting plate (2), the bottom ends of the 2 guide shafts are respectively fixed with the lower connecting plate (5) which is arranged below the connecting plate (1), and the lower connecting plate (5) is connected with the U-shaped fork lugs (3) through pin shafts (4).
The application mode of the transfer device for the skid helicopter provided by the embodiment example is as follows:
before being connected with the helicopter skid, the U-shaped fork lug 3 is firstly lowered to a proper height through the hydraulic jack 17, 2 clamping grooves of the U-shaped fork lug 3 are respectively aligned with connecting shafts of the 2 skids of the helicopter, the whole transfer device is moved, the 2 connecting shafts of the skids are respectively clamped into the 2 clamping grooves of the U-shaped fork lug 3, and then the hydraulic jack 17 is operated to lift the U-shaped fork lug 3, so that the upper connecting piece 6, the guide shaft 7, the lower connecting plate 5 and the U-shaped fork lug 3 are driven to lift the skid together to a proper height.
When the steering operation is not needed, the 2 nd connecting plate 2 is fixedly connected with the 1 st connecting plate 1 through the fixing pin 9, and when the steering operation is needed, the fixing pin 9 is detached from the 2 nd connecting plate 2, and the steering handle 10 is operated to drive the wheel set to rotate through the 1 st connecting plate 1. During the movement, the direction of the tractor wheel movement is controlled by the steering handle 10. When the helicopter is moved or transported, the hydraulic jack 17 is operated to unload the helicopter, the heights of the upper connecting piece 6, the guide shaft 7, the lower connecting plate 5 and the U-shaped fork lug 3 are lowered until the skid lands, and then the tractor wheel is detached from the skid.
Aiming at the problem that the skid type helicopter does not have a landing gear and cannot carry out transfer movement, the embodiment of the utility model provides a transfer device for the skid type helicopter, which assists the skid type helicopter in carrying out short-distance transfer movement. In addition, the transfer device provided by the embodiment of the utility model also has a self-lifting function, and the connection between the transfer device and the skid-type aircraft can be completed without other tools. Furthermore, the wheel set has a steering function, so that the moving process of the airplane can be ensured to be more convenient and flexible.
In specific implementation, the skid-type transfer device provided by the utility model is connected with the helicopter skid connecting rod through the lower U-shaped connecting piece (specifically the U-shaped fork lug 3), and the aircraft is lifted through the manual hydraulic jack, so that the operation is simple, meanwhile, the transfer device has a steering function, the movement is flexible, and the higher flexibility of the helicopter in the movement process is ensured. In addition, according to different models, only need change U type fork ear 3 below the transfer device just can be used to the transportation of other sled formula helicopters, and the commonality is better.
Although the embodiments of the present utility model are described above, the embodiments are only used for facilitating understanding of the present utility model, and are not intended to limit the present utility model. Any person skilled in the art can make any modification and variation in form and detail without departing from the spirit and scope of the present disclosure, but the scope of the present disclosure is to be determined by the appended claims.
Claims (8)
1. A transfer device for a skid helicopter, comprising: the steering device comprises a 1 st connecting plate (1), a 2 nd connecting plate (2), a U-shaped fork lug (3), a pin shaft (4), a lower connecting plate (5), an upper connecting plate (6), 2 guide shafts (7), a steering handle (10), 2 wheel disc assemblies (12), wheel shafts (13), rocker arms (14), 2 pneumatic tires (16) and a hydraulic jack (17);
the two pneumatic tires (16) are respectively connected with 2 wheel disc assemblies (12) through flanges, an axle (13) arranged in each wheel disc assembly (12) is connected with one side of a 1 st connecting plate (1) through a rocker arm (14), and an axle body of the 2 nd connecting plate (2) is inserted into a bearing of the 1 st connecting plate (1) and locked through a nut;
the hydraulic jack (17) is fixedly arranged above the 2 nd connecting plate (2), the upper connecting plate (6) is fixedly arranged above the hydraulic jack, the top ends of the 2 guide shafts (7) are respectively connected to the front side and the rear side of the upper connecting plate (6), the bottom ends of the 2 nd connecting plate (2) are respectively connected to the front side and the rear side of the lower connecting plate (5) below the 1 st connecting plate (1) after penetrating through the 2 nd connecting plate, and the lower connecting plate (5) is connected with the U-shaped fork lugs (3) with downward openings through the pin shafts (4);
the front side end face of the U-shaped fork lug (3) is symmetrically provided with 2 clamping grooves, and the clamping grooves are used for being respectively connected with skid shaft rods on two sides of the helicopter before the skid type helicopter is hauled by the transfer device.
2. The transfer device for a skid helicopter according to claim 1 wherein,
in the transfer device for the skid-type helicopter, an upper connecting plate (6) and a lower connecting plate (5) which are fixedly connected through 2 guide shafts (7) and a U-shaped fork lug (3) which is fixedly connected with the lower connecting plate (5) form a hydraulic linkage mechanism in the transfer device, and the hydraulic linkage mechanism is controlled to wholly rise or wholly fall through operating a hydraulic jack (17).
3. The transfer device for a skid helicopter according to claim 2 further comprising: a deep groove ball bearing (18), a thrust ball bearing (19) and a shaft sleeve (11);
the bearing seat is arranged in the middle of the 1 st connecting plate (1), the shaft sleeve (11) is pressed in the bearing seat, the deep groove ball bearing (18) and the thrust ball bearing (19) are sequentially arranged in the shaft sleeve (11) from bottom to top, and after the middle shaft body of the 2 nd connecting plate (2) is inserted into the deep groove ball bearing (18) and the thrust ball bearing (19) of the 1 st connecting plate (1), the 2 nd connecting plate (2) can do rotary motion relative to the 1 st connecting plate (1) through the combination of the 2 kinds of bearings.
4. The transfer device for a skid helicopter according to claim 3 wherein,
the 2 nd connecting plate (2) comprises: the plate assembly (2-1), the linear bearing (2-2) and the circlip (2-3) for holes;
the middle part of the plate assembly (2-1) is provided with a shaft body which is matched with the 1 st connecting plate (1), the front side and the rear side of the plate assembly (2-1) are provided with 1 bearing seat which is used for installing the linear bearings (2-2) through the bearing seats, and each linear bearing (2-2) is internally provided with an elastic retainer ring (2-3) for holes;
the bottom ends of the 2 guide shafts (7) specifically penetrate through the linear bearings (2-2) on the front side and the rear side of the 2 nd connecting plate (2), are fixedly connected with the front side and the rear side of the lower connecting plate (5), and play a role in guiding the movement of the upper connecting plate (6) and the lower connecting plate (5) through the two linear bearings (2-2) arranged front and rear.
5. The transfer device for a skid helicopter according to claim 4 further comprising: 2 end caps (15);
each of the wheel disc assemblies (12) includes: a disk body (12-1), a 1 st angular contact ball bearing (12-2) and a 2 nd angular contact ball bearing (12-3);
in the bearing hole of disk body (12-1), through 1 st angular contact ball bearing (12-2) and the 2 nd angular contact ball bearing (12-3) that inside and outside both ends set up respectively installation shaft (13), shaft end that shaft (13) stretches out disk body (12-1) is connected with one side of 1 st connecting plate (1) through rocking arm (14), and through end cover (15) that install at shaft end (13) shaft end restriction rocking arm (14) roll-off.
6. The transfer device for a sled helicopter according to any of claims 1-5 further comprising: a handle (8) and a steering handle (10);
a handle (8) is arranged at the top of the upper connecting plate (6) and is used for carrying the transferring device through the handle (8);
the rear end of the 1 st connecting plate (1) is provided with a steering handle (10), and the movement direction of the transfer device is controlled through the steering handle (10).
7. The transfer device for a sled helicopter according to any of claims 1-5 further comprising: a fixing pin (9);
the 1 st connecting plate (1) and the 2 nd connecting plate (2) are fixedly connected through a fixing pin (9) so as to limit the relative rotation movement between the 2 nd connecting plate (2) and the 1 st connecting plate (1), thereby limiting the steering operation of the transfer device.
8. The transfer device for a sled helicopter according to any of claims 1-5 wherein,
the transfer device is provided with U-shaped fork lugs (3) with various types and specifications, and the U-shaped fork lugs (3) are replaced, so that the transfer device can be matched to complete transfer work of different types.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223361945.5U CN219237385U (en) | 2022-12-14 | 2022-12-14 | Transfer device for skid type helicopter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223361945.5U CN219237385U (en) | 2022-12-14 | 2022-12-14 | Transfer device for skid type helicopter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219237385U true CN219237385U (en) | 2023-06-23 |
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ID=86803734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223361945.5U Active CN219237385U (en) | 2022-12-14 | 2022-12-14 | Transfer device for skid type helicopter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219237385U (en) |
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2022
- 2022-12-14 CN CN202223361945.5U patent/CN219237385U/en active Active
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