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CN-121133627-B - New energy semitrailer landing gear

CN121133627BCN 121133627 BCN121133627 BCN 121133627BCN-121133627-B

Abstract

The invention discloses a new energy semi-trailer landing gear, and relates to the technical field of trailer support. The invention comprises a control frame, wherein an installation block is in limiting sliding connection with the inside of the control frame, a first bevel gear is in limiting rotation connection with the bottom of the inner side of the installation block, a driving shaft is in limiting rotation connection with the left side and the right side of the installation block, a second bevel gear is fixedly installed at the adjacent ends of the driving shaft, a rotating shaft is in limiting rotation connection with the center of the inside of the control frame, threaded rods are in threaded connection with the left side and the right side of the bottom of the control frame, and the top of the threaded rods is in limiting rotation connection with the bottom of the installation block. The invention does not need an additional connecting structure, can be directly installed at the bottom end of the trailer, is convenient for installation and support, can be suitable for the trailers with different heights and widths at the bottom, improves the adaptability of the landing gear, is convenient for operation, and can ensure the stability for supporting the trailer when the ground is not flat and soft.

Inventors

  • LI MINCHENG
  • LI WENLONG

Assignees

  • 湖南成鑫专用汽车有限公司

Dates

Publication Date
20260512
Application Date
20251016

Claims (8)

  1. 1. The utility model provides a new forms of energy semitrailer undercarriage, includes control frame (1), its characterized in that, the inside spacing sliding connection of control frame (1) has installation piece (2), the spacing rotation in the inside bottom of installation piece (2) is connected with bevel gear one (3), the spacing rotation in the left and right sides of installation piece (2) is connected with drive shaft (4), the equal fixed mounting of adjacent one end of drive shaft (4) has bevel gear two (5), the spacing rotation in the inside central part of control frame (1) is connected with rotation axis (6), the left and right sides threaded connection of control frame (1) bottom has threaded rod (7), and the top of threaded rod (7) is connected with the spacing rotation in installation piece (2) bottom, the left and right sides symmetry of control frame (1) is provided with braced frame (8), the spacing sliding connection in inside of braced frame (8) has support column (9), the spacing rotation in the central part at braced frame (8) top is connected with lead screw (10), and lead screw (10) down with support column (9) threaded connection, be provided with between braced frame (8) lateral wall and support column (10) bottom (12), a transmission shaft (13) is connected between the driving shaft (4) and the transmission assembly (11) in a transmission way; The bevel gears II (5) are positioned on the left side and the right side of the top of the bevel gears I (3) and are meshed with the bevel gears I (3) mutually; The rotating shaft (6) penetrates through the mounting block (2) and the first bevel gear (3), and the first bevel gear (3) is in up-down limiting sliding connection with the rotating shaft (6).
  2. 2. The new energy semitrailer landing gear according to claim 1, wherein sliding grooves (14) are symmetrically formed in the left side and the right side of the control frame (1), and the driving shaft (4) is connected with the inner side of the sliding grooves (14) in a vertical sliding mode.
  3. 3. New energy semitrailer landing gear according to claim 2, characterized in that said transmission assembly (11) comprises: The driven shafts (111) are connected with the driven shafts (111) in a limiting rotation mode on the adjacent sides of the tops of the supporting frames (8) on the left side and the right side; the driven shaft (111) is positioned at one side of the inside of the supporting frame (8), and the inside of the driven shaft is in limited sliding connection with the connecting shaft (112); the first spring (113) is fixedly connected between one end of the connecting shaft (112) positioned inside the driven shaft (111) and the inner wall of the driven shaft (111); the third bevel gear (114) is fixedly arranged at one end, far away from the driven shaft (111), of the connecting shaft (112); The periphery of the top of the screw rod (10) is fixedly provided with a bevel gear IV (115), and the bevel gear IV (115) is meshed with a bevel gear III (114); The magnetic ring (116) is fixedly arranged at the side end, far away from the screw rod (10), of the bevel gear IV (115); And the electromagnetic ring (117) is fixedly arranged at the position, aligned with the magnetic ring (116), of the inner wall of the supporting frame (8).
  4. 4. A new energy semitrailer landing gear according to claim 3, characterized in that the two ends of the drive shaft (13) are in driving connection with the drive shaft (4) and the driven shaft (111) respectively by means of couplings.
  5. 5. The new energy semitrailer landing gear according to claim 4, wherein said transmission control assembly (12) comprises: The telescopic rod (121) is connected with the telescopic rod (121) in a limiting sliding manner at the bottom of the supporting column (9); the base (122) is fixedly arranged at the bottom end of the telescopic rod (121); The upper part of the telescopic rod (121) in the bottom of the support column (9) is limited and slidably connected with the limit seat (123); the second spring (124) is fixedly connected between the bottom end of the limiting seat (123) and the top end of the telescopic rod (121); The periphery of the limiting seat (123) is uniformly and fixedly connected with the tooth blocks (125); The outer side of the bottom of the support column (9) is limited and rotatably connected with the thread bush (126).
  6. 6. The new energy semitrailer landing gear according to claim 5, wherein the thread sleeve (126) wraps the outer side of the limiting seat (123), the tooth block (125) extends outwards, and the outer teeth of the tooth block (125) are in threaded connection with the inner side of the thread sleeve (126).
  7. 7. The new energy semitrailer landing gear according to claim 6, wherein in the power supply state, when the base (122) moves up to the position where the top end face contacts with the bottom end face of the support column (9), the electromagnetic ring (117) can be electrified, and the magnetic pole between the surface of the electromagnetic ring (117) adjacent to the magnetic ring (116) after the electromagnetic ring (117) is electrified is a magnetic pole of a different name.
  8. 8. New energy semitrailer landing gear according to any one of claims 1-7, characterized in that the bottom end of the control frame (1) is fixedly provided with a motor (15), and that the motor (15) is in transmission connection with the rotation shaft (6).

Description

New energy semitrailer landing gear Technical Field The invention relates to the technical field of trailer support, in particular to a new energy semi-trailer landing gear. Background The semitrailer is a heavy transport means connected with the tractor through a traction pin, is mainly used for transporting large goods, and when the separation of the trailer and the tractor is carried out, in order to ensure the stable placement of the trailer, the landing gear needs to be installed on the front side of the bottom of the trailer, when the separation of the trailer is carried out, the landing gear is downwards extended, the landing gear is matched with the tire on the rear side of the trailer to stably support the trailer, after the semitrailer is connected with the tractor, the landing gear is upwards retracted, so that the tractor can drag the trailer, and in the field of new energy semitrailers, along with the development of intelligence, the lifting control of the landing gear is also manually converted into electric from original. For example, the Chinese patent with the publication number of CN104925037B discloses a semitrailer and a semitrailer supporting leg connecting structure thereof, and the semitrailer supporting leg connecting structure of the invention enables the semitrailer supporting leg connecting structure to be quickly and accurately installed on the semitrailer by arranging a positioning device on a supporting leg bracket, and simultaneously improves the assembly efficiency of the semitrailer, reduces the labor intensity and improves the precision of products. In combination with the above patent and the prior art, the existing new energy semitrailer landing gear has the following defects in the use process: 1. The installation is not convenient enough, the suitability is to be promoted, because the difference of trailer size, and the difference of bottom structure, can exist the difference in height when installing control box and braced frame, consequently, in order to install the transmission shaft between control box and braced frame, need adjust the mounted position of control box and braced frame according to the difference of trailer bottom structure, and because the restriction of transmission shaft length, can't satisfy the trailer of different width well, the suitability of undercarriage has been reduced, and like the convenient installation and the suitability of above-mentioned patent in order to satisfy the landing leg, but need install connection structure earlier in the bottom of trailer, install the landing leg in connection structure's side according to the demand again, but consequently also increased cost and installation intensity, and landing leg side-mounting, the mounting bolt atress warp easily. 2. The supporting legs on two sides of the existing electric landing gear are driven to extend downwards simultaneously to complete supporting when the electric landing gear is used, but when the ground is uneven, the phenomenon of unstable supporting is easy to occur, and when the electric landing gear is controlled respectively, manual control and adjustment are needed, so that the convenience of operation is reduced, and when the electric landing gear faces soft ground, the supporting force of the supporting legs cannot be guaranteed, sinking easily occurs, and the supporting stability is reduced. Disclosure of Invention The invention aims to solve the problems that the landing gear is not convenient and convenient to install and is suitable to lift, and the support legs on two sides of the electric landing gear are easy to support when extending downwards at the same time, and the landing gear needs to be controlled and adjusted manually when being controlled respectively, so that the convenience of operation is reduced, the support force of the support legs cannot be ensured when the landing gear faces soft ground, sinking easily occurs, and the support stability is reduced. The invention adopts the following technical scheme for realizing the purposes: the utility model provides a new forms of energy semitrailer undercarriage, includes the control frame, the inside spacing sliding connection of control frame has the installation piece, the spacing rotation in bottom of installation piece inboard is connected with bevel gear one, the spacing rotation in left and right sides of installation piece is connected with the drive shaft, the equal fixed mounting of adjacent one end of drive shaft has bevel gear two, the spacing rotation in the inside central department of control frame is connected with the rotation axis, the left and right sides threaded connection of control frame bottom has the threaded rod, just the top of threaded rod is connected with the spacing rotation in installation piece bottom, the left and right sides symmetry of control frame is provided with the braced frame, the inside spacing sliding connection of braced frame has the support column, the