CN216359984U - Low flat-bed semitrailer retractable frame - Google Patents
Low flat-bed semitrailer retractable frame Download PDFInfo
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- CN216359984U CN216359984U CN202123010964.9U CN202123010964U CN216359984U CN 216359984 U CN216359984 U CN 216359984U CN 202123010964 U CN202123010964 U CN 202123010964U CN 216359984 U CN216359984 U CN 216359984U
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Abstract
The utility model relates to the technical field of logistics transportation, and discloses a telescopic frame of a low-flat-plate semitrailer, which comprises a main frame and a telescopic device, wherein the telescopic device is fixedly arranged on one side of the inner wall of the main frame and comprises a hydraulic cylinder, an auxiliary frame, a first supporting plate, a first motor, a first scroll rod, a second supporting plate, an unloading device, a first rotating rod, a first turbine, a connecting rod, a roller and a hydraulic jack, the hydraulic cylinder is fixedly arranged on one side of the inner wall of the main frame, the auxiliary frame is fixedly connected with the output end of the hydraulic cylinder, the first supporting plate is fixedly connected to the top and the bottom of the inner wall of the auxiliary frame, the auxiliary frame is pushed to move outwards by starting the hydraulic cylinder, the first motor is started, the output end of the first motor rotates to drive the first scroll rod to rotate, so that the first turbine connected with the first scroll rod in a threaded manner is driven to rotate, and the first rotating rod fixedly connected with the first turbine rotates along with the first rotating rod to increase the length of the main frame, to facilitate the transport of large items.
Description
Technical Field
The utility model relates to the technical field of logistics transportation, in particular to a telescopic frame of a low-flat-bed semitrailer.
Background
Low flatbed semi-trailers are commonly used to transport heavy vehicles (e.g., tractors, buses, trucks, etc.), rail vehicles, mining machines, forestry machines, construction machines (e.g., excavators, dozers, loaders, pavers, cranes, etc.) and other heavy goods, the lower its center of gravity, the better stability and security, the transportation superelevation goods just stronger with the ability through the overhead obstacle, low flatbed semi-trailer adopts concave beam formula (or well type) frame usually, both the frame anterior segment are the gooseneck (the towing pin of gooseneck anterior segment links to each other with the traction saddle on the tractor, the gooseneck rear end links to each other with the semitrailer frame), the middle section is the goods platform (the lowest part of frame), the rear end is the wheel carrier (contains the wheel), current low flatbed semi-trailer's frame is monolithic structure mostly, the length of frame can't be adjusted, when semi-trailer haulage equipment is too long, the frame can't carry out the appropriate adjustment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a telescopic frame of a low-flat-bed semi-trailer, which achieves the purposes of convenient transportation and cost saving.
In order to achieve the purpose, the utility model provides the following technical scheme: a telescopic frame of a low flatbed semi-trailer comprises a main frame and a telescopic device, wherein the telescopic device is fixedly arranged on one side of the inner wall of the main frame, the telescopic device comprises a hydraulic cylinder, an auxiliary frame, a support plate I, a motor I, a worm rod I, a support plate II, an unloading device, a rotating rod I, a worm wheel I, a connecting rod, a roller and a hydraulic jack, the hydraulic cylinder is fixedly arranged on one side of the inner wall of the main frame, the auxiliary frame is fixedly connected with the output end of the hydraulic cylinder, the first support plate is fixedly connected with the top and the bottom of the inner wall of the auxiliary frame, the second support plate is fixedly connected with the top and the bottom of the inner wall of the auxiliary frame, the first motor is fixedly arranged at one side of the first support plate, the first scroll rod is fixedly connected with the output end of the first motor, and the first scroll rod is rotatably connected to the right side of the second supporting plate through the first bearing.
Preferably, the first rotating rod penetrates through the front and the back of the auxiliary frame in sequence, the first rotating rod is connected with the auxiliary frame in a rotating mode through a second bearing and a third bearing, the first turbine is fixedly installed on the first rotating rod and is in threaded connection with a first worm, the connecting rod is fixedly installed at one end of the first rotating rod, and the roller is connected to one end, far away from the first rotating rod, of the connecting rod in a rotating mode.
Preferably, discharge devices fixed mounting is in the left side of backup pad two, discharge devices includes motor two, two scroll bars, two turbines, two bull sticks, swash plate, two fixed mounting of motor are in the left side of backup pad two, two output fixed connection of scroll bars and motor two, and two scroll bars rotate through bearing six and sub vehicle frame inner wall one side and be connected, preceding and the back of sub vehicle frame are worn in proper order to bull stick two, and bull stick two rotates through bearing four and bearing five and sub vehicle frame and is connected, two fixed mounting of turbine are on bull stick two, and two threaded connection of turbine and scroll bar, the least significant end fixed connection of swash plate is in the one end of bull stick two.
Preferably, the bottom both sides of main frame are provided with the wheel, and the wheel of each side all has threely, alleviates main frame bearing through setting up a plurality of wheels, improves trailer security.
Preferably, hydraulic jack fixed mounting is in the one end of keeping away from the pneumatic cylinder in sub vehicle frame bottom, and the hydraulic jack bottom is provided with the supporting seat, when sub vehicle frame stretches out, improves the stability of sub vehicle frame through hydraulic jack, makes the unloading dress more stable.
Preferably, the idler wheels are connected with the bottom of the inner wall of the main frame in a sliding mode, when the connecting rods rotate to the vertical direction, the bottom of the idler wheels and the bottom of the wheels are located at the same horizontal position, and the stability of the auxiliary frame is improved by the aid of the idler wheels.
The utility model provides a telescopic frame of a low-flat-bed semitrailer. The method has the following beneficial effects:
(1) the hydraulic cylinder is started to push the auxiliary frame to move outwards, the first motor is started, the output end of the first motor rotates to drive the first worm to rotate, so that the first worm which is in threaded connection with the first worm is driven to rotate, and the first rotating rod which is fixedly connected with the first worm rotates along with the first worm to increase the length of the main frame, so that large objects can be transported conveniently.
(2) The hydraulic jack is started to be in close contact with the ground, supporting force is provided for the auxiliary frame, the second motor is started, the output end of the second motor rotates to drive the second worm gear to rotate, so that the second worm gear in threaded connection with the second worm gear rotates, the top end of the inclined plate rotates to be in contact with the ground, and unloading or loading is performed.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a side view of the retractor of the present invention;
fig. 4 is a front view of the discharge device according to the utility model
Fig. 5 is a side view of the discharge device of the utility model.
In the figure: 1. a main frame; 2. a wheel; 3. a telescoping device; 301. a hydraulic cylinder; 302. an auxiliary frame; 303. a first support plate; 304. a first motor; 305. a first scroll bar; 306. a second support plate; 307. a discharge device; 3071. a second motor; 3072. a second scroll bar; 3073. a second turbine; 3074. a second rotating rod; 3075. a sloping plate; 308. a first rotating rod; 309. a first turbine; 310. a connecting rod; 311. a roller; 312. and a hydraulic jack.
Detailed Description
As shown in fig. 1 to 5, the present invention provides a technical solution: a telescopic frame of a low flat-bed semi-trailer comprises a main frame 1 and a telescopic device 3, wherein wheels 2 are arranged on two sides of the bottom of the main frame 1, the number of the wheels 2 on each side is three, the load bearing of the main frame 1 is reduced by arranging a plurality of wheels 2, the safety of the trailer is improved, the telescopic device 3 is fixedly arranged on one side of the inner wall of the main frame 1, the telescopic device 3 comprises a hydraulic cylinder 301, an auxiliary frame 302, a first support plate 303, a first motor 304, a first vortex rod 305, a second support plate 306, a discharging device 307, a first rotating rod 308, a first turbine 309, a connecting rod 310, a roller 311 and a hydraulic jack 312, the hydraulic cylinder 301 is fixedly arranged on one side of the inner wall of the main frame 1, the auxiliary frame 302 is fixedly connected with the output end of the hydraulic cylinder 301, the auxiliary frame 302 can be driven to be telescopic through the hydraulic cylinder 301, the length of the main frame is improved, the first support plate 303 is fixedly connected to the top and the bottom of the inner wall of the auxiliary frame 302, the second support plate 306 is fixedly connected to the top and the bottom of the inner wall of the subframe 302, the second support plate 306 is positioned on the left side of the first support plate 303, the first motor 304 is fixedly installed on one side of the first support plate 303, the first scroll 305 is fixedly connected with the output end of the first motor 304, the first scroll 305 is rotatably connected to the right side of the second support plate 306 through the first bearing, the first rotary rod 308 sequentially penetrates through the front and the rear of the subframe 302, the first rotary rod 308 is rotatably connected with the subframe 302 through the second bearing and the third bearing, the first turbine 309 is fixedly installed on the first rotary rod 308, the first turbine 309 is in threaded connection with the first scroll 305, so that the first scroll 309 can rotate to drive the first rotary rod 308 to rotate, linkage is realized, the connecting rod 310 is fixedly installed at one end of the first rotary rod 308, the roller 311 is rotatably connected to one end, far away from the first rotary rod 308, the roller 311 is slidably connected with the bottom of the inner wall of the main frame 1, and when the connecting rod 310 rotates to the vertical direction, the bottom of the roller 311 and the bottom of the wheel 2 are in the same horizontal position, the stability of the auxiliary frame 302 is improved by arranging the roller 311, the hydraulic jack 312 is fixedly installed at one end, far away from the hydraulic cylinder 301, of the bottom of the auxiliary frame 302, the bottom of the hydraulic jack 312 is provided with a supporting seat, when the auxiliary frame 302 extends out, the stability of the auxiliary frame 302 is improved through the work of the hydraulic jack 312, so that unloading and loading are more stable, the unloading device 307 is fixedly installed at the left side of the second supporting plate 306, the unloading device 307 comprises a second motor 3071, a second worm 3072, a second turbine 3073, a second rotating rod 3074 and an inclined plate 3075, the second motor 3071 is fixedly installed at the left side of the second supporting plate 306, the second worm 3072 is fixedly connected with the output end of the second motor 3071, the second worm 3072 is rotatably connected with one side of the inner wall of the auxiliary frame 302 through a sixth bearing, the second rotating rod 3074 sequentially penetrates through the front and the rear of the auxiliary frame 302, and the second rotating rod 3074 is rotatably connected with the auxiliary frame 302 through a fourth bearing and a fifth, the second turbine 3073 is fixedly mounted on the second rotating rod 3074, the second turbine 3073 is in threaded connection with the second worm 3072, the lowest end of the inclined plate 3075 is fixedly connected to one end of the second rotating rod 3074, when the inclined plate 3075 rotates to be in contact with the ground, loading and unloading are more convenient, and when the inclined plate 3075 tilts, the stability of loaded goods can be improved.
The working principle is as follows: the hydraulic cylinder 301 is started to push the auxiliary frame 302 to move outwards, when the auxiliary frame 302 moves outwards to a designated position, the first motor 304 is started, the output end of the first motor 304 rotates to drive the first worm wheel 305 to rotate, so that the first worm wheel 309 in threaded connection with the first worm wheel 309 is driven to rotate, the first rotating rod 308 fixedly connected with the first worm wheel 309 rotates along with the first worm wheel, so that the connecting rod 310 fixedly connected to one end of the first rotating rod 308 rotates to a horizontal vertical position, the bottom of the roller 311 is in contact with the ground, the length of the main frame 1 is increased, and large objects can be transported conveniently; when loading and unloading are needed, the hydraulic jack 312 is started, the hydraulic jack 312 is in close contact with the ground, supporting force is provided for the auxiliary frame 302, the second motor 3071 is started, the output end of the second motor 3071 rotates to drive the second worm gear 3072 to rotate, so that the second worm gear 3073 in threaded connection with the second worm gear 3073 is driven to rotate, the second worm gear 3074 fixedly connected with the second worm gear 3073 rotates along with the second worm gear, so that the inclined plate 3075 fixedly connected to the two ends of the second worm gear 3074 rotates, the top end of the inclined plate 3075 is rotated to be in contact with the ground, after unloading or loading is finished, the hydraulic jack 312 is folded, the second motor 3071 is started to rotate in the opposite direction, the second worm gear 3072 drives the second worm gear 3073 to rotate in the opposite direction, so that the inclined plate 3075 rotates in the opposite direction, the inclined plate 3075 is reset, and the purpose of facilitating loading and unloading is achieved.
Claims (6)
1. The utility model provides a low flatbed semitrailer retractable frame, includes main frame (1), telescoping device (3), its characterized in that: the telescopic device (3) is fixedly installed on one side of the inner wall of the main frame (1), the telescopic device (3) comprises a hydraulic cylinder (301), an auxiliary frame (302), a first support plate (303), a first motor (304), a first worm rod (305), a second support plate (306), a discharging device (307), a first rotating rod (308), a first turbine (309), a connecting rod (310), a roller (311) and a hydraulic jack (312), the hydraulic cylinder (301) is fixedly installed on one side of the inner wall of the main frame (1), the auxiliary frame (302) is fixedly connected with the output end of the hydraulic cylinder (301), the first support plate (303) is fixedly connected with the top and the bottom of the inner wall of the auxiliary frame (302), the second support plate (306) is located on the left side of the first support plate (303), the first motor (304) is fixedly installed on one side of the first support plate (303), the first scroll (305) is fixedly connected with the output end of the first motor (304), and the first scroll (305) is rotatably connected to the right side of the second support plate (306) through the first bearing.
2. The telescopic frame of the low flatbed semi-trailer according to claim 1, characterized in that: the utility model discloses a swing joint, including sub vehicle frame (302), runner bar (308), bearing two, worm wheel (309), connecting rod (310), gyro wheel (311), runner bar (308) run through the preceding and the back of sub vehicle frame (302) in proper order, and runner bar (308) rotate with sub vehicle frame (302) through bearing two and bearing three and be connected, turbine (309) fixed mounting is on runner bar (308), and turbine (309) and worm wheel (305) threaded connection, connecting rod (310) fixed mounting is in the one end of runner bar (308), gyro wheel (311) rotate to be connected in connecting rod (310) the one end of keeping away from runner bar (308).
3. The telescopic frame of the low flatbed semitrailer as claimed in claim 2, wherein: the unloading device (307) is fixedly arranged on the left side of the second support plate (306), the unloading device (307) comprises a second motor (3071), a second worm wheel (3072), a second turbine (3073), a second rotating rod (3074) and an inclined plate (3075), the second motor (3071) is fixedly arranged at the left side of the second support plate (306), the second scroll bar (3072) is fixedly connected with the output end of the second motor (3071), and the second scroll bar (3072) is rotationally connected with one side of the inner wall of the auxiliary frame (302) through a sixth bearing, the second rotating rod (3074) penetrates through the front and the rear of the auxiliary frame (302) in sequence, the second rotating rod (3074) is rotatably connected with the auxiliary frame (302) through a fourth bearing and a fifth bearing, the second turbine (3073) is fixedly arranged on the second rotating rod (3074), and the second turbine (3073) is in threaded connection with the second worm rod (3072), and the lowest end of the inclined plate (3075) is fixedly connected with one end of the second rotating rod (3074).
4. The telescopic frame of the low flatbed semitrailer as claimed in claim 3, wherein: wheels (2) are arranged on two sides of the bottom of the main frame (1), and three wheels (2) are arranged on each side.
5. The telescopic frame of the low flatbed semitrailer as claimed in claim 4, wherein: the hydraulic jack (312) is fixedly installed at one end, far away from the hydraulic cylinder (301), of the bottom of the auxiliary frame (302), and a supporting seat is arranged at the bottom of the hydraulic jack (312).
6. The telescopic frame of the low flatbed semi-trailer according to claim 5, characterized in that: the roller (311) is connected with the bottom of the inner wall of the main frame (1) in a sliding mode, and when the connecting rod (310) rotates to the vertical direction, the bottom of the roller (311) and the bottom of the wheel (2) are located at the same horizontal position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123010964.9U CN216359984U (en) | 2021-12-02 | 2021-12-02 | Low flat-bed semitrailer retractable frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123010964.9U CN216359984U (en) | 2021-12-02 | 2021-12-02 | Low flat-bed semitrailer retractable frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216359984U true CN216359984U (en) | 2022-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123010964.9U Active CN216359984U (en) | 2021-12-02 | 2021-12-02 | Low flat-bed semitrailer retractable frame |
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| Country | Link |
|---|---|
| CN (1) | CN216359984U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115352229A (en) * | 2022-08-25 | 2022-11-18 | 扬州市伏尔坎机械制造有限公司 | Adjustable accurate-guiding semitrailer with lifting and towing functions |
-
2021
- 2021-12-02 CN CN202123010964.9U patent/CN216359984U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115352229A (en) * | 2022-08-25 | 2022-11-18 | 扬州市伏尔坎机械制造有限公司 | Adjustable accurate-guiding semitrailer with lifting and towing functions |
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