CN214724135U

CN214724135U - Stable bearing underframe for semi-trailer carriage

Info

Publication number: CN214724135U
Application number: CN202120861833.2U
Authority: CN
Inventors: 杨尊凯
Original assignee: Liangshan Yuetong Special Purpose Vehicle Manufacturing Co ltd
Current assignee: Liangshan Yuetong Special Purpose Vehicle Manufacturing Co ltd
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2021-11-16
Anticipated expiration: 2031-04-25

Abstract

The utility model discloses a semitrailer carriage is with stabilizing bearing chassis, including overlooking the frame plate that is the rectangle, the mounting groove of rectangle is seted up to the frame plate upper end, all vertically seted up the shifting chute on the mounting groove left and right sides inner wall, two be equipped with two moving mechanism between the shifting chute, moving mechanism includes respectively sliding connection and just corresponds two movable blocks that set up in two shifting chutes, two the relative one side of movable block rotates the two-way threaded rod that is connected with two fore-and-aft intervals and sets up jointly, is located two of same moving mechanism common screw thread has cup jointed the slider that two bilateral symmetry set up on the two-way threaded rod, wall contact sets up in slider lower extreme and the mounting groove, four the bearing board of the equal fixedly connected with rectangle in slider upper end, the bearing board is located the top of frame plate. The utility model discloses can change the bearing area of bearing chassis, then the convenience carries out bearing work to the semi-mounted carriage of different bottom surfaces size, and the security is high.

Description

Stable bearing underframe for semi-trailer carriage

Technical Field

The utility model relates to a bearing chassis technical field especially relates to a semi-mounted carriage is with stabilizing bearing chassis.

Background

The semitrailer is a road transport device with strong carrying capacity, economy and practicability, and is generally divided into a carriage type semitrailer and a flat-plate type semitrailer according to the structural form of the semitrailer. Carriage formula semitrailer is to adopt the hinge to couple up curb plate and bottom plate and constitute the semitrailer carriage with the front bezel jointly again in order to be used for loading the goods, among the prior art, after semitrailer carriage equipment production, need place it on the bearing chassis, in order to wait for the assembly on the semitrailer, current semitrailer carriage bearing chassis function singleness nevertheless plays the bearing size and can't change, then can't bear the semitrailer carriage of equidimension underfloor area, if place semitrailer carriage on the bearing chassis that is less than self underfloor area, then probably take place to bear unstable phenomenon, the incident takes place easily.

We have therefore proposed a stable bearing chassis for semi-trailer carriages to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a stable bearing underframe for a semi-trailer carriage.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a semitrailer carriage is with stabilizing bearing chassis, is including overlooking the frame plate that is the rectangle, the mounting groove of rectangle is seted up to the frame plate upper end, all vertically seted up the shifting chute on the mounting groove left and right sides inner wall, two be equipped with two moving mechanism between the shifting chute, moving mechanism includes sliding connection respectively and corresponds two movable blocks that set up in two shifting chutes, two the relative one side of movable block rotates jointly and is connected with two bidirectional threaded rod that the interval set up around, is located two of same moving mechanism common screw thread has cup jointed the slider that two bilateral symmetry set up on the bidirectional threaded rod, wall contact sets up in slider lower extreme and the mounting groove, four the bearing board of the equal fixedly connected with rectangle in slider upper end, the bearing board is located the top of frame plate.

Preferably, the bottom wall in the mounting groove and the inner wall of the moving groove are smooth surfaces.

Preferably, on the frame plate right side wall and vertically seted up the slide opening, four at the corresponding position of shifting chute the equal fixedly connected with transfer line of right-hand member of two-way threaded rod, the one end that two-way threaded rod was kept away from to the transfer line runs through the slide opening setting, the frame plate right side just is equipped with the drive case on the corresponding position of two-way threaded rods that lie in same moving mechanism, per two the right-hand member of transfer line all rotates and runs through drive case left side and is connected with drive case right side inner wall rotation, just be equipped with the actuating lever in the drive case in two transfer lines below lieing in same drive case, the actuating lever left end runs through drive case right side and fixedly connected with rocker with drive case left side inner wall rotation connection, right-hand member, lies in two of same drive case chain drive connection between transfer line and the transfer line that the below corresponds.

Preferably, four connecting blocks that are the rectangular distribution of frame plate lower extreme fixedly connected with, four movable chamber has all been seted up in the connecting block, sliding connection has the fly leaf about the activity intracavity, common fixedly connected with damping spring between fly leaf upper end and the movable intracavity roof, fly leaf lower extreme fixedly connected with bracing piece, the bracing piece lower extreme runs through movable intracavity diapire and vertical extension to connecting block below, bracing piece lower extreme fixedly connected with fixed plate.

Preferably, four the bearing board lower extreme just all vertical fixedly connected with shock-absorbing rod in frame plate outside position, four the equal fixedly connected with universal wheel of shock-absorbing rod lower extreme.

Preferably, be located two in same moving mechanism the common cover that rotates on the intermediate position of two-way threaded rod is equipped with dials the piece, dial piece lower extreme and mounting groove bottom wall slip laminating.

Preferably, the outer wall of the left side of the frame plate is provided with a plurality of jacks arranged at uniform intervals at corresponding positions of the moving grooves, two moving blocks located in the moving groove on the left side are provided with limiting holes with the same size as the jacks, two inserting rods are inserted into the jacks corresponding to the limiting holes, and the inserting rods penetrate through the corresponding limiting holes.

Compared with the prior art, the device has the advantages that:

1. through shaking two rockers alright drive two-way threaded rod in the moving mechanism and rotate, drive the slider and drive the bearing board and remove then, the interval between the bearing board that corresponds about adjustable, with the horizontal length that enlarges or reduces the bearing, through promoting the stirring piece, the interval between the bearing board that corresponds around adjustable, with the vertical width that enlarges or reduces the bearing, alright make the semi-mounted carriage bottom that needs to place fall on the within range of four bearing boards completely, carry out stable bearing work, this mode is convenient to carry out bearing work to the semi-mounted carriage of different bottom surfaces sizes, the practicality of this bearing chassis has been improved.

2. When placing the semi-mounted carriage, under shock attenuation pole and damping spring's common cushioning effect, can dump the power that partly transferred, can guarantee to place the stability of this bearing chassis of process, improved the security.

To sum up, the utility model discloses can change the bearing area of bearing chassis, the convenience carries out bearing work to the semi-mounted carriage of different bottom surfaces size then, and the security is high.

Drawings

FIG. 1 is a perspective view of a stable support chassis for a semi-trailer coach in accordance with the present invention;

FIG. 2 is a perspective view of the front side of a stable support chassis for a semi-trailer bed according to the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

In the figure: the device comprises a frame plate 1, a mounting groove 2, a moving groove 3, a moving block 4, a bidirectional threaded rod 5, a sliding block 6, a supporting plate 7, a sliding hole 8, a driving box 9, a driving rod 10, a rocker 11, a damping rod 12, a universal wheel 13, a connecting block 14, a movable cavity 15, a movable plate 16, a damping spring 17, a supporting rod 18 and a poking block 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a stable bearing underframe for a semi-trailer carriage comprises a frame plate 1 which is rectangular when overlooking, a rectangular installation groove 2 is arranged at the upper end of the frame plate 1, moving grooves 3 are longitudinally arranged on the inner walls of the left side and the right side of the installation groove 2, two moving mechanisms are arranged between the two moving grooves 3, each moving mechanism comprises two moving blocks 4 which are respectively connected in the two moving grooves 3 in a sliding way and are correspondingly arranged, two bidirectional threaded rods 5 which are arranged at intervals are jointly and rotatably connected to the opposite sides of the two moving blocks 4, two bilaterally symmetrically arranged slide blocks 6 are sleeved on the two bidirectional threaded rods 5 in the same moving mechanism in a common threaded manner, the lower ends of the slide blocks 6 are in contact with the inner wall of the installation groove 2, the inner wall of the installation groove 2 and the inner wall of the moving groove 3 are smooth surfaces, the slide of the moving blocks 4 and the slide blocks 6 is convenient, and rectangular bearing plates 7 are fixedly connected to the upper ends of the four slide blocks 6, the bearing plate 7 is positioned above the frame plate 1 and is used for bearing the semi-trailer carriage.

A slide hole 8 is longitudinally arranged on the right side wall of the frame plate 1 at the corresponding position of the moving groove 3, the right ends of four two-way threaded rods 5 are fixedly connected with transmission rods 10, one end of each transmission rod 10 far away from the two-way threaded rod 5 is arranged by penetrating through the slide hole 8, a driving box 9 is arranged on the right side of the frame plate 1 and at the corresponding position of the two-way threaded rods 5 in the same moving mechanism, the right end of each two transmission rods 10 is rotatably penetrated through the left side of the driving box 9 and is rotatably connected with the inner wall of the right side of the driving box 9, a driving rod is arranged in the driving box 9 and below the two transmission rods 10 in the same driving box 9, the left end of the driving rod is rotatably connected with the inner wall of the left side of the driving box 9, the right end of the driving rod is penetrated through the right side of the driving box 9 and is fixedly connected with a rocker 11, the two transmission rods 10 in the same driving box 9 and the corresponding transmission rod 10 below are in a chain transmission mode common in the prior art, and will not be described herein. The corresponding bidirectional threaded rod 5 can be driven to rotate by rocking the rocker 11, and then the interval between the corresponding left and right bearing plates 7 is adjusted.

Four connecting blocks 14 that are the rectangular distribution of 1 lower extreme fixedly connected with of frame plate, movable chamber 15 has all been seted up in four connecting blocks 14, sliding connection has fly leaf 16 about in the movable chamber 15, common fixedly connected with damping spring 17 between fly leaf 16 upper end and the 15 interior roof of movable chamber, 16 lower extreme fixedly connected with bracing piece 18 of fly leaf, 18 lower extremes of bracing piece run through the 15 interior diapalls of movable chamber and vertical extension to connecting block 14 below, 18 lower extreme fixedly connected with fixed plates of bracing piece, 7 lower extremes of four bearing plates and at the equal vertical fixedly connected with shock attenuation pole 12 in frame plate 1 outside position, the equal fixedly connected with universal wheel 13 of four shock attenuation pole 12 lower extremes, shock attenuation pole 12 plays the cushioning effect with damping spring 17 jointly, guarantee the stability when placing the semi-mounted carriage, and improve the security.

The cover is rotated jointly and is equipped with stirring piece 19 on being located the intermediate position of two-way threaded rod 5 of same moving mechanism, stir 19 lower extreme and the 2 inner bottom wall sliding fit of mounting groove, make things convenient for two moving mechanism of back-and-forth movement, just set up the jack that a plurality of even intervals set up in the corresponding position of shifting chute 3 on the outer wall of frame plate 1 left side, the spacing hole the same with the jack size has all been seted up on two movable blocks 4 that are located left side shifting chute 3, it is equipped with the inserted bar all to insert in two jacks that correspond with spacing hole position, the inserted bar runs through the setting of the spacing hole that corresponds, utilize the inserted bar to insert corresponding jack and spacing hole, can play the effect of fixed moving mechanism position.

Use the utility model discloses the time, the ground size in the semitrailer carriage that can place as required is adjusted this bearing chassis, and accommodation process as follows:

the corresponding driving rods rotate by shaking the two rockers 11, the two corresponding driving rods 10 are driven by chain transmission to rotate synchronously at the same rotating speed, then the two corresponding bidirectional threaded rods 5 rotate synchronously, two sliding blocks 6 which are sleeved on the two sliding rods by threads move left and right in the moving grooves 3, then the interval between the left and right corresponding bearing plates 7 can be adjusted to enlarge or reduce the transverse length of the bearing, the two shifting blocks 19 are pushed to drive the two moving mechanisms to move forwards and backwards, the distance between the two moving mechanisms is changed, the inserting rods penetrate through the corresponding inserting holes and the limiting holes, so as to fix the position of the moving mechanism and then adjust the interval between the front and back corresponding bearing plates 7, the longitudinal width of the bearing is enlarged or reduced, so that the bottom of the semi-trailer carriage to be placed can completely fall within the range of the four bearing plates 7, and stable bearing work can be carried out.

When placing the semi-trailer carriage, under shock attenuation pole 12 and damping spring 17's common cushioning effect, can unload the power that partly transferred, guarantee then to place this bearing chassis's of process stability.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A stable bearing underframe for a semi-trailer carriage comprises a frame plate (1) which is rectangular when overlooking, and is characterized in that the upper end of the frame plate (1) is provided with a rectangular mounting groove (2), the inner walls of the left side and the right side of the mounting groove (2) are respectively and longitudinally provided with a moving groove (3), two moving mechanisms are arranged between the two moving grooves (3), each moving mechanism comprises two moving blocks (4) which are respectively connected in the two moving grooves (3) in a sliding manner and are correspondingly arranged, two bidirectional threaded rods (5) which are arranged at intervals from front to back are jointly and rotatably connected to the opposite sides of the two moving blocks (4), two sliding blocks (6) which are symmetrically arranged from left to right are sleeved on the two bidirectional threaded rods (5) in the same moving mechanism through a common thread, the lower ends of the sliding blocks (6) are arranged in contact with the inner bottom wall of the mounting groove (2), and rectangular bearing plates (7) are fixedly connected to the upper ends of the four sliding blocks (6), the supporting plate (7) is positioned above the frame plate (1).

2. The chassis for stably supporting semi-trailer carriages as claimed in claim 1, wherein the bottom wall of the mounting groove (2) and the inner wall of the moving groove (3) are smooth surfaces.

3. The chassis for stably supporting a semitrailer compartment as claimed in claim 1, wherein said frame plate (1) has a slide hole (8) longitudinally formed on the right side wall thereof at a position corresponding to the slide groove (3), four drive rods (10) are fixedly connected to the right ends of said two-way threaded rods (5), one ends of said drive rods (10) remote from the two-way threaded rods (5) are disposed through the slide hole (8), said frame plate (1) has a drive box (9) on the right side thereof at a position corresponding to the two-way threaded rods (5) disposed in the same moving mechanism, the right ends of each two drive rods (10) are rotatably disposed through the left side of the drive box (9) and rotatably connected to the inner wall of the right side of the drive box (9), said drive box (9) has a drive rod disposed therein below the two drive rods (10) disposed in the same drive box (9), the left end of the driving rod is rotatably connected with the inner wall of the left side of the driving box (9), the right end of the driving rod penetrates through the right side of the driving box (9) and is fixedly connected with a rocker (11), and two driving rods (10) positioned in the same driving box (9) are in chain transmission connection with the corresponding driving rods (10) below.

4. The chassis for stably supporting a semi-trailer carriage as claimed in claim 1, wherein the lower end of the frame plate (1) is fixedly connected with four connecting blocks (14) which are distributed in a rectangular shape, four movable cavities (15) are formed in the four connecting blocks (14), a movable plate (16) is slidably connected in the movable cavity (15) up and down, a damping spring (17) is fixedly connected between the upper end of the movable plate (16) and the inner top wall of the movable cavity (15) together, a supporting rod (18) is fixedly connected to the lower end of the movable plate (16), the lower end of the supporting rod (18) penetrates through the inner bottom wall of the movable cavity (15) and vertically extends to the position below the connecting blocks (14), and a fixing plate is fixedly connected to the lower end of the supporting rod (18).

5. The chassis for stable bearing of semi-trailer carriages as claimed in claim 1, characterized in that the lower ends of four said bearing plates (7) are vertically and fixedly connected with shock-absorbing rods (12) at the outer side of the frame plate (1), and the lower ends of four said shock-absorbing rods (12) are fixedly connected with universal wheels (13).

6. The chassis for stably supporting semi-trailer carriages as claimed in claim 1, characterized in that the two bidirectional threaded rods (5) positioned in the same moving mechanism are jointly rotatably sleeved with a shifting block (19), and the lower end of the shifting block (19) is in sliding fit with the inner bottom wall of the mounting groove (2).

7. The chassis for stably supporting a semi-trailer carriage as claimed in claim 1, wherein a plurality of jacks are formed in the left outer wall of the frame plate (1) at positions corresponding to the moving grooves (3) and are uniformly spaced, two moving blocks (4) in the left moving groove (3) are respectively provided with a limiting hole having the same size as the jacks, and two insertion rods are inserted into the two jacks corresponding to the limiting holes and are arranged to penetrate through the corresponding limiting holes.