CN204978826U - Semitrailer with accuracy turns to function - Google Patents
Semitrailer with accuracy turns to function Download PDFInfo
- Publication number
- CN204978826U CN204978826U CN201520553023.5U CN201520553023U CN204978826U CN 204978826 U CN204978826 U CN 204978826U CN 201520553023 U CN201520553023 U CN 201520553023U CN 204978826 U CN204978826 U CN 204978826U
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- oil cylinder
- telescopic oil
- wheel group
- seat
- right telescopic
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- Withdrawn - After Issue
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Abstract
The utility model discloses a semitrailer with accuracy turns to function in the transport vechicle technical field, front -seat wheel group, the back row wheel group at the rear portion of frame come transmitting torque through gear drive's mode, have realized front -seat wheel group, the synchronous of back row wheel group and have rotated, utilize gear drive's stationarity, reliability, the accuracy nature of torque to guarantee front -seat wheel group, back row wheel group pivoted synchronism, and the percent of pass of turn obtains very big promotion, the setting of initiative circular arc rack, driven circular arc rack can be convenient for make, practices thrift the material cost when transmission effect can be guaranteed to the rack structure, has saved heavy gear structure, and the practicality promotes greatly.
Description
Technical field
The utility model relates to a kind of transport trolley, particularly a kind of superimposed trailer.
Background technology
At present, superimposed trailer is quite extensive in the application of transport trolley technical field.Its vehicle frame front end is gooseneck portion, gooseneck leading portion is traction docking platform, the bottom of traction docking platform is provided with towing pin, during docking, towing pin connects with the tractor truck saddle on tractor truck, gooseneck back segment is connected with loading platform, loading platform is part minimum in vehicle frame, has many row's wheel groups below vehicle frame rear end.The vehicle body of usual superimposed trailer is longer, and when vehicle drives to sharply turning section, will run into the problem turning to difficulty, if section is narrower, knuckle radius is less, and superimposed trailer often can't pass, and will incur loss through delay haulage time, increases traffic cost.
Turning to for the ease of superimposed trailer, market is proposed a kind of brand-new superimposed trailer, its vibrational power flow is as follows: comprise vehicle frame, the gooseneck portion of vehicle frame is provided with the traction docking platform for docking tractor truck saddle, the front end of traction docking platform is provided with rotating disk, rotating disk can rotate relative to traction docking platform, and rotating disk bottom is provided with the towing pin for docking tractor truck saddle; Traction docking platform is also provided with front hook control mechanism; The rear portion of vehicle frame be provided with front-seat wheel group, rear vehicle wheel group, the front axle being connected in series front-seat wheel group, serial connection rear vehicle wheel group rear axle, control the rear corner control mechanism of front-seat wheel group and rear vehicle wheel group steering angle.
Wherein, front hook control mechanism and rear corner control mechanism link, and when semi-trailer direction changing, front hook control mechanism and rear corner control mechanism cooperatively interact the percent of pass ensureing semi-trailer direction changing.
Front hook control mechanism is provided with front left telescopic oil cylinder and front right telescopic oil cylinder, and is assembled into the jointed gear unit of one with rotating disk, front left telescopic oil cylinder, front right telescopic oil cylinder; Rear corner control mechanism is provided with rear left telescopic oil cylinder, rear right telescopic oil cylinder, the piston crank mechanism also comprise steering swivel, being connected with steering swivel, steering swivel connects wheel stub, during work, telescopic oil cylinder plays driving effect, and piston crank mechanism, steering swivel play gearing.
Although prior art to some extent solves turn to difficult problem, but find some problems in actual use: the parts played a major role in steering hardware in prior art are piston crank mechanisms, steering swivel, piston crank mechanism, steering swivel all directly controls by oil cylinder, because oil cylinder itself inevitably exists kinematic error, add the limited accuracy of the transmission of piston crank mechanism own, make transmission steady not, and there is driving error, cause the steering angle of wheel accurate not, the synchronism of wheel steering can be affected, wheel repeatedly produces fault when turning to and can not turn, affect the use of superimposed trailer.
Utility model content
The purpose of this utility model is to provide a kind of superimposed trailer with accurate turning function, can ensure the particularity of steering angle of wheel, can ensure the synchronism of wheel when turning to well.
The purpose of this utility model is achieved in that a kind of superimposed trailer with accurate turning function, comprise vehicle frame, the gooseneck portion of described vehicle frame is provided with the traction docking platform for docking tractor truck saddle, the front end of described traction docking platform is provided with rotating disk, described rotating disk can rotate relative to traction docking platform, and described rotating disk bottom is provided with the towing pin for docking tractor truck saddle; Described traction docking platform is also provided with front hook control mechanism; The rear portion of described vehicle frame be provided with front-seat wheel group, rear vehicle wheel group, the front axle being connected in series front-seat wheel group, serial connection rear vehicle wheel group rear axle, control the rear corner control mechanism of front-seat wheel group and rear vehicle wheel group steering angle;
Described front hook control mechanism comprises front left telescopic oil cylinder, front right telescopic oil cylinder, front link transmission device, and described front left telescopic oil cylinder, front right telescopic oil cylinder form interaction relation by front link transmission device and rotating disk;
Described rear corner control mechanism comprises rear left telescopic oil cylinder, rear right telescopic oil cylinder, rear transfer mechanism, and described rear left telescopic oil cylinder, rear right telescopic oil cylinder control the steering angle of front-seat wheel group, rear vehicle wheel group by rear transfer mechanism; Described front left telescopic oil cylinder and rear left telescopic oil cylinder form interaction relation, and described front right telescopic oil cylinder and rear right telescopic oil cylinder form interaction relation;
The rear portion of described vehicle frame also comprises equilibrium arm support, and described equilibrium arm support to be fixed on below vehicle frame and to be between front-seat wheel group and rear vehicle wheel group, is all fixed with equilibrium arm under the two ends of described equilibrium arm support; The downward-extension section of described front axle, rear axle is sleeved on equilibrium arm rotationally;
Described rear transfer mechanism comprises intermediate drive gear, rear link mechanism, described intermediate drive gear is provided with two and is installed in rotation on respectively on two equilibrium arms, and the centre of gration of described intermediate drive gear is between front-seat wheel group and rear vehicle wheel group; Described rear transfer mechanism is also provided with the active arc rack engaged with intermediate drive gear, be also provided with in order to fixing active arc rack, the active tooth bar swing seat that is fixedly connected with rear axle; Described rear transfer mechanism is also provided with the driven arc rack engaged with intermediate drive gear, be also provided with in order to fixing driven arc rack, the driven tooth bar swing seat that is fixedly connected with front axle; Described active arc rack, driven arc rack are oppositely arranged;
Described rear left telescopic oil cylinder, rear right telescopic oil cylinder are connected by rear link mechanism with initiatively tooth bar swing seat, and described rear left telescopic oil cylinder, rear right telescopic oil cylinder order about initiatively arc rack by rear link mechanism and to be as the criterion with the center of turn of rear axle and to rotate.
Compared with prior art, the beneficial effects of the utility model are: front-seat wheel group, the rear vehicle wheel group at the rear portion of vehicle frame carry out transmitting torque by gear-driven mode, achieve the synchronous axial system of front-seat wheel group, rear vehicle wheel group, utilize the particularity of gear-driven stationarity, reliability, corner to ensure the synchronism that front-seat wheel group, rear vehicle wheel group are rotated, the percent of pass of turning is greatly improved; Initiatively the setting of arc rack, driven arc rack can be convenient to make, and save Material Cost while rack structure can ensure transmission effect, eliminate heavy gear structure, practicality promotes greatly; Equilibrium arm and arranging of equilibrium arm support can strengthen overall structural strength, and find reference for installation when being easy to install, and facilitate installation process.
As further improvement of the utility model, described front link transmission device comprises pull bar, be fixed on the lever free bearing on traction docking platform, be fixed on the front oil cylinder free bearing on traction docking platform, lever hinge, lever, described lever free bearing is between rotating disk and front oil cylinder free bearing, described lever is installed in rotation on lever free bearing by lever hinge, described front left telescopic oil cylinder, the cylinder barrel of front right telescopic oil cylinder is hinged on front oil cylinder free bearing, described front left telescopic oil cylinder, the piston rod of front right telescopic oil cylinder is hinged with the left and right end of lever respectively, the left end of described lever and one end of pull bar are hinged, the other end of described pull bar and the edge of rotating disk are hinged, described front left telescopic oil cylinder rod chamber is connected with rear left telescopic oil cylinder rod chamber, and described front left telescopic oil cylinder rodless cavity is connected with rear left telescopic oil cylinder rodless cavity, described front right telescopic oil cylinder rod chamber is connected with rear right telescopic oil cylinder rod chamber, and described front right telescopic oil cylinder rodless cavity is connected with rear right telescopic oil cylinder rodless cavity.During work, driven by rotary disc pull bar, pull bar drives lever to rotate, lever can compress or pull-up front left telescopic oil cylinder, front right telescopic oil cylinder when rotation, make front left telescopic oil cylinder and rear left telescopic oil cylinder can distribute hydraulic oil according to the stressing conditions of respective piston rod, simultaneously front right telescopic oil cylinder and rear right telescopic oil cylinder also can distribute hydraulic oil according to the stressing conditions of respective piston rod, synchronism when moving of abundant guarantee front hook control mechanism and rear corner control mechanism and concertedness.The preceence of the program is: the wheel group of headstock is while turning to, front-seat wheel group, the rear vehicle wheel group at the rear portion of vehicle frame promptly can turn to rotation with contrary, ensure that wheel group and front-seat wheel group, the rear vehicle wheel group of headstock are on the same radius of gyration, to ensure percent of pass.
As further improvement of the utility model, described rear link mechanism comprises the middle free bearing be fixed on equilibrium arm support, intermediate rotary shaft, the intermediate transmission plate be installed in rotation on by intermediate rotary shaft on middle free bearing, the described intermediate transmission plate left and right sides is all connected with connecting rod, one end and the intermediate transmission plate of described connecting rod are hinged, and the other end of described connecting rod is hinged with the medial extremity of active tooth bar swing seat; The described intermediate transmission plate left and right sides is hinged with the piston rod of rear left telescopic oil cylinder, rear right telescopic oil cylinder respectively.The advantage of the program is: owing to being provided with intermediate transmission plate, connecting rod, makes transmission more flexible, and more saves arrangement space; Intermediate transmission plate is equivalent to the transmission center of rear link mechanism, can ensure the synchronism of the piston rod movement of rear left telescopic oil cylinder, rear right telescopic oil cylinder, thus ensures the conformability that front-seat wheel group, rear vehicle wheel group are rotated further.
As further improvement of the utility model, between described rotating disk and traction docking platform, swivel bearing is installed, described swivel bearing is made up of outside race, rolling body, bearing inner ring, the outside race of described swivel bearing is fixed on rotating disk, and the bearing inner ring of described swivel bearing is fixed on traction docking platform.The advantage of the program is: swivel bearing has the high advantage of smooth rotation degree, and rotating disk can be rotated relative to traction docking platform very swimmingly.
As further improvement of the utility model, described active arc rack, driven arc rack are removably fixed on active tooth bar swing seat, driven tooth bar swing seat respectively.Advantage is: (one) is convenient to install; (2) be convenient to active arc rack, driven arc rack to pull down and carry out keeping in repair, changing.
As further improvement of the utility model, described equilibrium arm being fixed with the pinion stand for being set with intermediate drive gear, between described pinion stand and intermediate drive gear, bearing assembly being installed.Be to ensure the smoothness that intermediate drive gear rotates further, thus ensure the accuracy of rack pinion further.
Accompanying drawing explanation
Fig. 1 is rear corner control mechanism schematic diagram of the present utility model.
Fig. 2 is the C direction view in Fig. 1.
Fig. 3 is the assembled relation schematic diagram of intermediate drive gear.
Fig. 4 is fluid pressure linkage system diagram of the present utility model.
The view of front hook control mechanism when Fig. 5 is superimposed trailer going straight ahead.
Fig. 6 is the assembled relation schematic diagram of traction docking platform and rotating disk.
Fig. 7 is front hook control mechanism right-hand rotation view.
Fig. 8 is front hook control mechanism left-hand rotation view.
Wherein, 1 equilibrium arm support, 2 rear left telescopic oil cylinders, 3 rear right telescopic oil cylinders, 4 front axles, 5 rear axle, 6 front-seat wheel groups, 7 rear vehicle wheel groups, 8 equilibrium arms, 9 active arc racks, 10 active tooth bar swing seats, 11 intermediate drive gears, 12 driven arc racks, 13 driven tooth bar swing seats, 14 intermediate transmission plates, 15 intermediate rotary shaft, 16 middle free bearings, 17 connecting rods, 18 vehicle frames, 19 pinion stands, 20 bearing assemblies, 21 front left telescopic oil cylinders, 22 front right telescopic oil cylinders, 23 rotating disks, 24 traction docking platforms, 25 lever free bearings, 26 lever hinges, 27 levers, 28 pull bars, oil cylinder free bearing before 29, 30 swivel bearings, 31 bearing inner rings, 32 outside racees, 33 rolling bodys, 34 towing pins.
Detailed description of the invention
As shown in Fig. 1,5,6, a kind of superimposed trailer with accurate turning function, comprise vehicle frame 18, the gooseneck portion of vehicle frame 18 is provided with the traction docking platform 24 for docking tractor truck saddle, the front end of traction docking platform 24 is provided with rotating disk 23, rotating disk 23 can rotate relative to traction docking platform 24, and rotating disk 23 bottom is provided with the towing pin 34 for docking tractor truck saddle; Traction docking platform 24 is also provided with front hook control mechanism; The rear portion of vehicle frame 18 be provided with front-seat wheel group 6, rear vehicle wheel group 7, the front axle 4 being connected in series front-seat wheel group 6, serial connection rear vehicle wheel group 7 rear axle 5, control the rear corner control mechanism of front-seat wheel group 6 and rear vehicle wheel group 7 steering angle.
As shown in Figure 5, above-mentioned front hook control mechanism comprises front left telescopic oil cylinder 21, front right telescopic oil cylinder 22, front link transmission device, and front left telescopic oil cylinder 21, front right telescopic oil cylinder 22 form interaction relation by front link transmission device and rotating disk 23.
As shown in Figure 1, above-mentioned rear corner control mechanism comprises rear left telescopic oil cylinder 2, rear right telescopic oil cylinder 3, rear transfer mechanism, and rear left telescopic oil cylinder 2, rear right telescopic oil cylinder 3 control the steering angle of front-seat wheel group 6, rear vehicle wheel group 7 by rear transfer mechanism; Front left telescopic oil cylinder 21 and rear left telescopic oil cylinder 2 form interaction relation, and front right telescopic oil cylinder 22 and rear right telescopic oil cylinder 3 form interaction relation.
As shown in Figure 1, 2, the rear portion of above-mentioned vehicle frame 18 also comprises equilibrium arm support 1, and equilibrium arm support 1 to be fixed on below vehicle frame 18 and to be between front-seat wheel group 6 and rear vehicle wheel group 7, is all fixed with equilibrium arm 8 under the two ends of equilibrium arm support 1; The downward-extension section of front axle 4, rear axle 5 is sleeved on equilibrium arm 8 rotationally; Rear transfer mechanism comprises intermediate drive gear 11, rear link mechanism, intermediate drive gear 11 is provided with two and is installed in rotation on respectively on two equilibrium arms 8, and the centre of gration of intermediate drive gear 11 is between front-seat wheel group 6 and rear vehicle wheel group 7; Above-mentioned rear transfer mechanism is also provided with the active arc rack 9 engaged with intermediate drive gear 11, be also provided with in order to fixing active arc rack 9, the active tooth bar swing seat 10 that is fixedly connected with rear axle 5; Above-mentioned rear transfer mechanism is also provided with the driven arc rack 12 engaged with intermediate drive gear 11, be also provided with in order to fixing driven arc rack 12, the driven tooth bar swing seat 13 that is fixedly connected with front axle 4; Initiatively arc rack 9, driven arc rack 12 are oppositely arranged; Rear left telescopic oil cylinder 2, rear right telescopic oil cylinder 3 are connected by rear link mechanism with initiatively tooth bar swing seat 10, and rear left telescopic oil cylinder 2, rear right telescopic oil cylinder 3 order about initiatively arc rack 9 by rear link mechanism and to be as the criterion with the center of turn of rear axle 5 and to rotate.
As Fig. 1, 4, shown in 5, above-mentioned front link transmission device comprises pull bar 28, be fixed on the lever free bearing 25 on traction docking platform 24, be fixed on the front oil cylinder free bearing 29 on traction docking platform 24, lever hinge 26, lever 27, lever free bearing 25 is between rotating disk 23 and front oil cylinder free bearing 29, lever 27 is installed in rotation on lever free bearing 25 by lever hinge 26, front left telescopic oil cylinder 21, the cylinder barrel of front right telescopic oil cylinder 22 is hinged on front oil cylinder free bearing 29, front left telescopic oil cylinder 21, the piston rod of front right telescopic oil cylinder 22 is hinged with the left and right end of lever 27 respectively, the left end of lever 27 and one end of pull bar 28 are hinged, the other end of pull bar 28 and the edge of rotating disk 23 are hinged, front left telescopic oil cylinder 21 rod chamber is connected with rear left telescopic oil cylinder 2 rod chamber, and front left telescopic oil cylinder 21 rodless cavity is connected with rear left telescopic oil cylinder 2 rodless cavity, front right telescopic oil cylinder 22 rod chamber is connected with rear right telescopic oil cylinder 3 rod chamber, and front right telescopic oil cylinder 22 rodless cavity is connected with rear right telescopic oil cylinder 3 rodless cavity.During work, rotating disk 23 drives pull bar 28, pull bar 28 drives lever 27 to rotate, lever 27 can compress or pull-up front left telescopic oil cylinder 21, front right telescopic oil cylinder 22 when rotation, make front left telescopic oil cylinder 21 can distribute hydraulic oil according to the stressing conditions of respective piston rod with rear left telescopic oil cylinder 2, simultaneously front right telescopic oil cylinder 22 and rear right telescopic oil cylinder 3 also can distribute hydraulic oil according to the stressing conditions of respective piston rod, fully synchronism when moving of guarantee front hook control mechanism and rear corner control mechanism and concertedness.The wheel group of headstock is while left-hand rotation, and front-seat wheel group 6, the rear vehicle wheel group 7 at the rear portion of vehicle frame 18 are synchronously turned right, and is more convenient for turning.
As shown in Figure 1, above-mentioned rear link mechanism comprises the middle free bearing 16 be fixed on equilibrium arm support 1, intermediate rotary shaft 15, is installed in rotation on the intermediate transmission plate 14 on middle free bearing 16 by intermediate rotary shaft 15, intermediate transmission plate 14 left and right sides is all connected with connecting rod 17, one end and the intermediate transmission plate 14 of connecting rod 17 are hinged, and the other end of connecting rod 17 is hinged with the medial extremity of active tooth bar swing seat 10; Intermediate transmission plate 14 left and right sides is hinged with the piston rod of rear left telescopic oil cylinder 2, rear right telescopic oil cylinder 3 respectively.The advantage of the program is: owing to being provided with intermediate transmission plate 14, connecting rod 17, makes transmission more flexible, and more saves arrangement space; Intermediate transmission plate 14 is equivalent to the transmission center of rear link mechanism, can ensure the synchronism of the piston rod movement of rear left telescopic oil cylinder 2, rear right telescopic oil cylinder 3, thus ensures the conformability that front-seat wheel group 6, rear vehicle wheel group 7 are rotated further.
As shown in Figure 6, between above-mentioned rotating disk 23 and traction docking platform 24, swivel bearing 30 is installed, swivel bearing 30 is made up of outside race 32, rolling body 33, bearing inner ring 31, the outside race 32 of swivel bearing 30 is fixed on rotating disk 23, and the bearing inner ring 31 of swivel bearing 30 is fixed on traction docking platform 24.Swivel bearing 30 has the high advantage of smooth rotation degree, and rotating disk 23 can be rotated relative to traction docking platform 24 very swimmingly.
As shown in Figure 1, 2, 3, above-mentioned active arc rack 9, driven arc rack 12 are removably fixed on active tooth bar swing seat 10, driven tooth bar swing seat 13 respectively.Advantage is: (one) is convenient to install; (2) be convenient to active arc rack 9, driven arc rack 12 to pull down and carry out keeping in repair, changing.
As shown in Figure 3, above-mentioned equilibrium arm 8 is fixed with the pinion stand 19 for being set with intermediate drive gear 11, bearing assembly 20 is installed between pinion stand 19 and intermediate drive gear 11.Be to ensure the smoothness that intermediate drive gear 11 rotates further, thus ensure the accuracy of rack pinion further.
Following word is that the principle of carrying out for superimposed trailer left-hand rotation is set forth: during left-hand rotation, rotating disk 23 drives pull bar 28, pull bar 28 is made to withstand the left end of lever 27, the piston rod of the left end compression front left telescopic oil cylinder 21 of lever 27, the piston rod of the right-hand member pull-up front right telescopic oil cylinder 22 of lever 27, the hydraulic oil of front left telescopic oil cylinder 21 rodless cavity is expressed in rear left telescopic oil cylinder 2 rodless cavity, and the hydraulic oil of front right telescopic oil cylinder 22 rod chamber is expressed in rear right telescopic oil cylinder 3 rod chamber; So, the piston rod of rear left telescopic oil cylinder 2 stretches out, and meanwhile, the piston rod of rear right telescopic oil cylinder 3 is retracted.
The piston rod of rear left telescopic oil cylinder 2 stretches out, intermediate transmission plate 14 is pushed up to the right, intermediate transmission plate 14 right-hand turning, active tooth bar swing seat 10 is pulled by connecting rod 17 by intermediate transmission plate 14 to the right, initiatively tooth bar swing seat 10 drives rear axle 5 right-hand turning, rear vehicle wheel group 7 right-hand turning, initiatively arc rack 9 rotates clockwise simultaneously, intermediate drive gear 11 rotates counterclockwise, driven arc rack 12 is driven to rotate clockwise, driven arc rack 12 drives front axle 4 to rotate clockwise by driven tooth bar swing seat 13, and front-seat wheel group 6 is turned right.
Above-mentioned front hook control mechanism and rear corner control mechanism can form interlock when superimposed trailer is turned, make the wheel group of headstock while left-hand rotation, front-seat wheel group 6, the rear vehicle wheel group 7 at the rear portion of vehicle frame 18 are synchronously turned right, be more convenient for turning, especially the less occasion of turn radius is being run into, the wheel group of headstock is turned left, the mode that front-seat wheel group 6, rear vehicle wheel group 7 are synchronously turned right is more convenient for turning, the wheel group of headstock, front-seat wheel group 6, rear vehicle wheel group 7 are on the same radius of gyration, effectively ensure that percent of pass.
When needs are turned right, the wheel group of headstock is while right-hand rotation, and front-seat wheel group 6, the rear vehicle wheel group 7 at the rear portion of vehicle frame 18 are synchronously turned left.
The utility model is not limited to above-described embodiment; on the basis of technical scheme disclosed in the utility model; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some to some technical characteristics wherein to replace and distortion, these are replaced and are out of shape all in protection domain of the present utility model.
Claims (6)
1. the superimposed trailer with accurate turning function, comprise vehicle frame (18), the gooseneck portion of described vehicle frame (18) is provided with the traction docking platform (24) for docking tractor truck saddle, the front end of described traction docking platform (24) is provided with rotating disk (23), described rotating disk (23) can rotate relative to traction docking platform (24), and described rotating disk (23) bottom is provided with the towing pin (34) for docking tractor truck saddle; Described traction docking platform (24) is also provided with front hook control mechanism; The rear portion of described vehicle frame (18) be provided with front-seat wheel group (6), rear vehicle wheel group (7), the front axle (4) being connected in series front-seat wheel group (6), serial connection rear vehicle wheel group (7) rear axle (5), control the rear corner control mechanism of front-seat wheel group (6) and rear vehicle wheel group (7) steering angle;
Described front hook control mechanism comprises front left telescopic oil cylinder (21), front right telescopic oil cylinder (22), front link transmission device, and described front left telescopic oil cylinder (21), front right telescopic oil cylinder (22) form interaction relation by front link transmission device and rotating disk (23);
Described rear corner control mechanism comprises rear left telescopic oil cylinder (2), rear right telescopic oil cylinder (3), rear transfer mechanism, and described rear left telescopic oil cylinder (2), rear right telescopic oil cylinder (3) control the steering angle of front-seat wheel group (6), rear vehicle wheel group (7) by rear transfer mechanism; Described front left telescopic oil cylinder (21) and rear left telescopic oil cylinder (2) form interaction relation, and described front right telescopic oil cylinder (22) and rear right telescopic oil cylinder (3) form interaction relation, it is characterized in that:
The rear portion of described vehicle frame (18) also comprises equilibrium arm support (1), described equilibrium arm support (1) is fixed on vehicle frame (18) below and is between front-seat wheel group (6) and rear vehicle wheel group (7), is all fixed with equilibrium arm (8) under the two ends of described equilibrium arm support (1); The downward-extension section of described front axle (4), rear axle (5) is sleeved on equilibrium arm (8) rotationally;
Described rear transfer mechanism comprises intermediate drive gear (11), rear link mechanism, described intermediate drive gear (11) is provided with two and is installed in rotation on respectively on two equilibrium arms (8), and the centre of gration of described intermediate drive gear (11) is between front-seat wheel group (6) and rear vehicle wheel group (7); Described rear transfer mechanism is also provided with the active arc rack (9) engaged with intermediate drive gear (11), be also provided with in order to fixing active arc rack (9), the active tooth bar swing seat (10) that is fixedly connected with rear axle (5); Described rear transfer mechanism is also provided with the driven arc rack (12) engaged with intermediate drive gear (11), be also provided with in order to fixing driven arc rack (12), the driven tooth bar swing seat (13) that is fixedly connected with front axle (4); Described active arc rack (9), driven arc rack (12) are oppositely arranged;
Described rear left telescopic oil cylinder (2), rear right telescopic oil cylinder (3) are connected by rear link mechanism with initiatively tooth bar swing seat (10), and described rear left telescopic oil cylinder (2), rear right telescopic oil cylinder (3) are ordered about initiatively arc rack (9) by rear link mechanism and to be as the criterion with the center of turn of rear axle (5) and to rotate.
2. a kind of superimposed trailer with accurate turning function according to claim 1, it is characterized in that: described front link transmission device comprises pull bar (28), be fixed on the lever free bearing (25) in traction docking platform (24), be fixed on the front oil cylinder free bearing (29) in traction docking platform (24), lever hinge (26), lever (27), described lever free bearing (25) is between rotating disk (23) and front oil cylinder free bearing (29), described lever (27) is installed in rotation on lever free bearing (25) by lever hinge (26), described front left telescopic oil cylinder (21), the cylinder barrel of front right telescopic oil cylinder (22) is hinged on front oil cylinder free bearing (29), described front left telescopic oil cylinder (21), the piston rod of front right telescopic oil cylinder (22) is hinged with the left and right end of lever (27) respectively, the left end of described lever (27) and one end of pull bar (28) are hinged, the other end of described pull bar (28) and the edge of rotating disk (23) are hinged, described front left telescopic oil cylinder (21) rod chamber is connected with rear left telescopic oil cylinder (2) rod chamber, and described front left telescopic oil cylinder (21) rodless cavity is connected with rear left telescopic oil cylinder (2) rodless cavity, described front right telescopic oil cylinder (22) rod chamber is connected with rear right telescopic oil cylinder (3) rod chamber, and described front right telescopic oil cylinder (22) rodless cavity is connected with rear right telescopic oil cylinder (3) rodless cavity.
3. a kind of superimposed trailer with accurate turning function according to claim 1, it is characterized in that: described rear link mechanism comprises the middle free bearing (16) be fixed on equilibrium arm support (1), intermediate rotary shaft (15), the intermediate transmission plate (14) on middle free bearing (16) is installed in rotation on by intermediate rotary shaft (15), described intermediate transmission plate (14) left and right sides is all connected with connecting rod (17), one end and the intermediate transmission plate (14) of described connecting rod (17) are hinged, the other end of described connecting rod (17) is hinged with the medial extremity of active tooth bar swing seat (10), described intermediate transmission plate (14) left and right sides is hinged with the piston rod of rear left telescopic oil cylinder (2), rear right telescopic oil cylinder (3) respectively.
4. a kind of superimposed trailer with accurate turning function according to claim 1, it is characterized in that: between described rotating disk (23) and traction docking platform (24), swivel bearing (30) is installed, described swivel bearing (30) is made up of outside race (32), rolling body (33), bearing inner ring (31), the outside race (32) of described swivel bearing (30) is fixed on rotating disk (23), and the bearing inner ring (31) of described swivel bearing (30) is fixed in traction docking platform (24).
5. a kind of superimposed trailer with accurate turning function according to claim 1, is characterized in that: described active arc rack (9), driven arc rack (12) are removably fixed on active tooth bar swing seat (10), driven tooth bar swing seat (13) respectively.
6. a kind of superimposed trailer with accurate turning function according to claim 1, it is characterized in that: described equilibrium arm (8) is fixed with the pinion stand (19) for suit intermediate drive gear (11), bearing assembly (20) is installed between described pinion stand (19) and intermediate drive gear (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520553023.5U CN204978826U (en) | 2015-07-28 | 2015-07-28 | Semitrailer with accuracy turns to function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520553023.5U CN204978826U (en) | 2015-07-28 | 2015-07-28 | Semitrailer with accuracy turns to function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204978826U true CN204978826U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520553023.5U Withdrawn - After Issue CN204978826U (en) | 2015-07-28 | 2015-07-28 | Semitrailer with accuracy turns to function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204978826U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105059387A (en) * | 2015-07-28 | 2015-11-18 | 扬州市伏尔坎机械制造有限公司 | Semi-trailer with accurate steering function |
| CN107344578A (en) * | 2017-08-29 | 2017-11-14 | 扬州市伏尔坎机械制造有限公司 | A kind of semitrailer rear-axle steering control device |
-
2015
- 2015-07-28 CN CN201520553023.5U patent/CN204978826U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105059387A (en) * | 2015-07-28 | 2015-11-18 | 扬州市伏尔坎机械制造有限公司 | Semi-trailer with accurate steering function |
| CN107344578A (en) * | 2017-08-29 | 2017-11-14 | 扬州市伏尔坎机械制造有限公司 | A kind of semitrailer rear-axle steering control device |
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