CN211592144U

CN211592144U - Semitrailer suspension balancing arm

Info

Publication number: CN211592144U
Application number: CN201922436200.2U
Authority: CN
Inventors: 杨明振
Original assignee: Shandong Jianyu Special Vehicle Co ltd
Current assignee: Shandong Jianyu Special Vehicle Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-09-29
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a semitrailer suspension balance arm, including the balance arm body, the balance arm body includes U-shaped mounted frame and two curb plates that are located the U-shaped mounted frame, is equipped with two axle sleeves in the U-shaped mounted frame, and the fixed cover of U-shaped mounted frame is established on two axle sleeves, and one side of curb plate is seted up with two axle sleeve matched with mounting holes, is equipped with same pipe between two axle sleeves, and two equal movable sleeves of curb plate are established on the pipe, the pipe is formed by four arc concatenation, is equipped with the pivot in the pipe. The utility model relates to a rationally, convenient operation, through the pipe of scalable regulation, be convenient for quick with two curb plate fixed mounting in U-shaped mounted frame, avoid because of the internal diameter is the same causes the phenomenon of installation difficulty, labour saving and time saving, and be convenient for install the pipe in the axle sleeve and the mounting hole of different internal diameters, avoid because of axle sleeve internal diameter and the too big or undersize of mounting hole internal diameter, cause the phenomenon of unable installation, be favorable to the use.

Description

Semitrailer suspension balancing arm

Technical Field

The utility model relates to a semitrailer suspension balance arm technical field especially relates to a semitrailer suspension balance arm.

Background

In the frame construction of semitrailer, the balance arm is very important key part, and the suspension both ends that are used for connecting the central siphon stretch into the balance arm and obtain floating support, subduct the vibration that comes from wheel and suspension through the swing under different road surface conditions, and current balance arm comprises two curb plates, axle sleeve, mounted bracket and connecting axle pipe mostly, through inserting the connecting axle pipe in the axle sleeve, realizes the installation of two curb plates and mounted bracket.

The current semitrailer suspension balancing arm is not convenient for fast assembly, in order to guarantee the stability of installation, the size of the internal diameter of the axle sleeve that sets up and the external diameter of connecting the central siphon is the same completely, but under the condition that its internal diameter and external diameter are the same, be not convenient for insert the axle sleeve with connecting the central siphon in, generally realize connecting through the mode of pounding the pressure, nevertheless appear pounding the phenomenon of hindering the hand easily pounding at the in-process of pounding the pressure, and waste time and energy, danger is big, can not satisfy the user demand, therefore we have proposed a semitrailer suspension balancing arm and have been used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a semitrailer suspension balancing arm.

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

a semitrailer suspension balance arm comprises a balance arm body, wherein the balance arm body comprises a U-shaped suspension frame and two side plates positioned in the U-shaped suspension frame, two shaft sleeves are arranged in the U-shaped suspension frame, the U-shaped suspension frame is fixedly sleeved on the two shaft sleeves, one side of each side plate is provided with a mounting hole matched with the two shaft sleeves, a same round pipe is arranged between the two shaft sleeves, the two side plates are movably sleeved on the round pipe, the round pipe is formed by splicing four arc-shaped plates, a rotating shaft is arranged in the round pipe, one end of the rotating shaft extends out of the round pipe and is provided with a first groove, one side of each arc-shaped plate, which is close to the rotating shaft, is rotatably provided with a screw rod, one end of each screw rod, which is far away from the corresponding arc-shaped plate, extends into the first groove, the rotating shaft is sleeved on the four screw rods in a threaded manner, a first bevel gear, one side that the installation piece is close to corresponding arc has seted up first through-hole, the connecting pipe is installed to first through-hole internal rotation, the one end that the connecting pipe is close to corresponding arc extends to outside the installation piece and keeps away from one side fixed connection of arc with first bevel gear, the connecting pipe cover is established on corresponding screw rod, four first bevel gear's front side meshing has same rotation to install the second bevel gear in first inslot, second bevel gear's front side fixed mounting has the dwang, the one end that second bevel gear was kept away from to the dwang extends to outside the pivot and fixed mounting has the knob, one side fixed mounting that the arc is close to the pivot has two locating levers, the locating lever is kept away from the one end of corresponding arc and is extended to first inslot, pivot sliding sleeve is established on eight locating levers, the screw rod is located between two locating levers that correspond.

Preferably, four threaded holes are annularly formed in the side wall of the first groove, and the threaded holes are in threaded connection with the corresponding screws.

Preferably, eight second through holes are annularly formed in the side wall of the first groove, and the side wall of each second through hole is in sliding connection with the outer side of the corresponding positioning rod.

Preferably, a first bearing is fixedly sleeved in the first through hole, and an inner ring of the first bearing is fixedly sleeved on the outer side of the corresponding connecting pipe.

Preferably, the sliding grooves are formed in the two sides of the screw rod, the circular hole is formed in one side of the first bevel gear, two sliding blocks are fixedly mounted on the side wall of the circular hole, and the sliding blocks are connected with the corresponding sliding grooves in a sliding mode.

Preferably, the first groove is internally fixedly sleeved with a second bearing, and the inner ring of the second bearing is fixedly connected with the outer side of the second bevel gear.

Preferably, one side of the arc-shaped plate, which is far away from the rotating shaft, is fixedly bonded with an anti-slip rubber sheet.

Preferably, the inner diameters of the two mounting holes are the same as the inner diameters of the two bushings.

Compared with the prior art, the beneficial effects of the utility model are that:

through the rotation shaft, the arc-shaped plates, the antiskid rubber sheets, the screw rods, the positioning rods, the first bevel gears, the mounting blocks, the first through holes, the connecting pipes, the U-shaped suspension bracket, the knob, the second bearing, the second bevel gear, the rotating rods, the first groove and the side plates are matched with the shaft sleeves, the two side plates are placed in the U-shaped suspension bracket, at the moment, the two mounting holes are aligned with the two shaft sleeves, the circular pipes are inserted into the two shaft sleeves and the mounting holes, then the rotation shaft is held, the knob is rotated in the forward direction, the second bevel gear is driven to rotate through the rotating rods, the second bevel gear drives the screw rods to rotate through the four first bevel gears meshed with the second bevel gears, the corresponding arc-shaped plates are driven to move in the direction far away from the rotation shaft while the screw rods rotate, the corresponding two positioning rods are driven by the arc-shaped plates to respectively slide in the two second through holes, the four arc-shaped plates respectively drive the corresponding, and stopping rotating the knob, fixing the circular tube under the action of friction force between the anti-skid rubber sheet and the side wall of the shaft sleeve and the side wall of the mounting hole, and fixedly mounting the two side plates in the U-shaped suspension bracket.

The utility model relates to a rationally, convenient operation, through the pipe of scalable regulation, be convenient for quick with two curb plate fixed mounting in U-shaped mounted frame, avoid because of the internal diameter is the same causes the phenomenon of installation difficulty, labour saving and time saving, and be convenient for install the pipe in the axle sleeve and the mounting hole of different internal diameters, avoid because of axle sleeve internal diameter and the too big or undersize of mounting hole internal diameter, cause the phenomenon of unable installation, be favorable to the use.

Drawings

Fig. 1 is a schematic structural view of a semitrailer suspension balancing arm provided by the utility model;

fig. 2 is a schematic view of a connecting member structure of a circular tube, an anti-skid rubber sheet, a rotating shaft, a second bevel gear and a rotating rod of a semi-trailer suspension balance arm provided by the utility model;

FIG. 3 is a schematic cross-sectional view of FIG. 2;

fig. 4 is a schematic structural view of a portion a in fig. 3.

In the figure: the device comprises a rotating shaft 1, an arc-shaped plate 2, an anti-skid rubber sheet 3, a screw rod 4, a positioning rod 5, a first bevel gear 6, a mounting block 7, a first through hole 8, a connecting pipe 9, a U-shaped suspension frame 10, a knob 11, a second bearing 12, a second bevel gear 13, a rotating rod 14, a first groove 15, a side plate 16 and a shaft sleeve 17.

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. 1-4, a semitrailer suspension balancing arm comprises a balancing arm body, the balancing arm body comprises a U-shaped suspension bracket 10 and two side plates 16 positioned in the U-shaped suspension bracket 10, two shaft sleeves 17 are arranged in the U-shaped suspension bracket 10, the U-shaped suspension bracket 10 is fixedly sleeved on the two shaft sleeves 17, one side of each side plate 16 is provided with a mounting hole matched with the two shaft sleeves 17, a same round pipe is arranged between the two shaft sleeves 17, the two side plates 16 are movably sleeved on the round pipe, the round pipe is formed by splicing four arc-shaped plates 2, a rotating shaft 1 is arranged in the round pipe, one end of the rotating shaft 1 extends out of the round pipe and is provided with a first groove 15, one side of each arc-shaped plate 2 close to the rotating shaft 1 is rotatably provided with a screw rod 4, one end of each screw rod 4 far away from the corresponding arc-shaped plate 2 extends into the first groove 15, the rotating shaft 1 is sleeved on the four screw, four mounting blocks 7 are fixedly mounted on the inner wall of one side of the first groove 15 far away from the opening in an annular shape, one side of each mounting block 7 close to the corresponding arc-shaped plate 2 is provided with a first through hole 8, a connecting pipe 9 is rotatably mounted in each first through hole 8, one end of each connecting pipe 9 close to the corresponding arc-shaped plate 2 extends out of the corresponding mounting block 7 and is fixedly connected with one side of each first bevel gear 6 far away from the corresponding arc-shaped plate 2, each connecting pipe 9 is sleeved on the corresponding screw rod 4, the front sides of the four first bevel gears 6 are meshed with the same second bevel gear 13 rotatably mounted in the corresponding first groove 15, the front side of each second bevel gear 13 is fixedly provided with a rotating rod 14, one end of each rotating rod 14 far away from the corresponding second bevel gear 13 extends out of the rotating shaft 1 and is fixedly provided with a knob 11, one side of each arc-shaped plate 2 close to the rotating shaft 1 is fixedly provided with two positioning rods 5, one end, the sliding sleeve of pivot 1 is established on eight locating levers 5, and screw rod 4 is located between two locating levers 5 that correspond, the utility model relates to a rationally, convenient operation, through the pipe of scalable regulation, be convenient for quick with 16 fixed mounting of two curb plates in U-shaped mounted frame 10, avoid because of the internal diameter is the same causes the phenomenon of installation difficulty, labour saving and time saving, and be convenient for install the pipe in the axle sleeve 17 and the mounting hole of different internal diameters, avoid because of axle sleeve 17 internal diameter and mounting hole internal diameter are too big or the undersize, cause the phenomenon of unable installation, be favorable to using.

In the utility model, four threaded holes are annularly arranged on the side wall of the first groove 15, the threaded holes are in threaded connection with the corresponding screw rods 4, eight second through holes are annularly arranged on the side wall of the first groove 15, the side wall of each second through hole is in sliding connection with the outer side of the corresponding positioning rod 5, a first bearing is fixedly sleeved in each first through hole 8, the inner ring of each first bearing is fixedly sleeved with the outer side of the corresponding connecting pipe 9, sliding grooves are respectively arranged on both sides of the screw rods 4, a circular hole is arranged on one side of the first bevel gear 6, two sliding blocks are fixedly arranged on the side wall of the circular hole and are in sliding connection with the corresponding sliding grooves, a second bearing 12 is fixedly sleeved in each first groove 15, the inner ring of the second bearing 12 is fixedly connected with the outer side of the second bevel gear 13, an anti-skid rubber 3 is fixedly bonded on one side of the arc-shaped plate 2 away from the rotating shaft 1, the inner diameters, the utility model relates to a rationally, convenient operation, through the pipe of scalable regulation, be convenient for quick with 16 fixed mounting of two curb plates in U-shaped mounted frame 10, avoid because of the internal diameter is the same causes the phenomenon of installation difficulty, labour saving and time saving, and be convenient for install the pipe in the axle sleeve 17 and the mounting hole of different internal diameters, avoid because of axle sleeve 17 internal diameter and the too big or undersize of mounting hole internal diameter, cause the phenomenon of unable installation, be favorable to using.

The working principle is as follows: when the two side plates 16 are required to be installed in the U-shaped suspension frame 10, the two side plates 16 are placed in the U-shaped suspension frame 10, the two installation holes are aligned with the two shaft sleeves 17, the maximum diameter of the circular pipe is smaller than the inner diameters of the two shaft sleeves 17 and the inner diameters of the installation holes, the circular pipe is inserted into the two shaft sleeves 17 and the installation holes, the rotating shaft 1 is held to be fixed, the knob 11 is rotated in the forward direction, the knob 11 drives the rotating rod 14 to rotate, the rotating rod 14 drives the second bevel gear 13 to rotate, the second bevel gear 13 drives the four first bevel gears 6 meshed with the rotating rod to rotate, the first bevel gears 6 drive the screw rods 4 to rotate through the corresponding two slide blocks, the first bevel gears 6 drive the corresponding connecting pipes 9 to rotate, the screw rods 4 move while rotating and move in position under the action of the threaded holes formed in the rotating shaft 1, the screw rods 4 drive the corresponding two slide grooves to respectively slide on the two slide, the screw 4 drives the corresponding arc plate 2 to move in the direction away from the rotating shaft 1, the arc plate 2 drives the corresponding two positioning rods 5 to respectively slide in the two second through holes, the four arc plates 2 respectively drive the corresponding anti-slip rubber sheets 3 to move in the direction away from each other, when the anti-slip rubber sheets 3 move to be in close contact with the side wall of the shaft sleeve 17 and the side wall of the mounting hole, the knob 11 stops rotating, under the action of the self-locking damping force of the threaded hole and the corresponding screw 4, the arc plate 2 is fixed, under the action of the friction force of the anti-slip rubber sheets 3 with the side wall of the shaft sleeve 17 and the side wall of the mounting hole, the round pipe is fixed, at the moment, the two side plates 16 are both fixedly installed in the U-shaped suspension frame 10, so that the round pipe can be conveniently and quickly installed, the phenomenon of difficult installation caused by the same inner diameter is avoided, the phenomenon that the installation cannot be carried out due to the fact that the inner diameter of the shaft sleeve 17 and the inner diameter of the installation hole are too large or too small is avoided.

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 semi-trailer suspension balance arm comprises a balance arm body, wherein the balance arm body comprises a U-shaped suspension bracket (10) and two side plates (16) positioned in the U-shaped suspension bracket (10), two shaft sleeves (17) are arranged in the U-shaped suspension bracket (10), the U-shaped suspension bracket (10) is fixedly sleeved on the two shaft sleeves (17), one side of each side plate (16) is provided with a mounting hole matched with the two shaft sleeves (17), a same round pipe is arranged between the two shaft sleeves (17), the two side plates (16) are movably sleeved on the round pipe, the semi-trailer suspension balance arm is characterized in that the round pipe is formed by splicing four arc plates (2), a rotating shaft (1) is arranged in the round pipe, one end of the rotating shaft (1) extends out of the round pipe and is provided with a first groove (15), one side of each arc plate (2) close to the rotating shaft (1) is rotatably provided with a screw rod (4), one end of each screw rod (4), which is far away from the corresponding, the rotating shaft (1) is sleeved on the four screw rods (4) in a threaded manner, the screw rods (4) are sleeved with a first bevel gear (6) positioned in a first groove (15) in a sliding manner, the inner wall of one side, far away from the opening, of the first groove (15) is fixedly provided with four mounting blocks (7) in an annular manner, one side, close to the corresponding arc-shaped plate (2), of each mounting block (7) is provided with a first through hole (8), a connecting pipe (9) is rotatably mounted in each first through hole (8), one end, close to the corresponding arc-shaped plate (2), of each connecting pipe (9) extends out of each mounting block (7) and is fixedly connected with one side, far away from the arc-shaped plate (2), of each first bevel gear (6), each connecting pipe (9) is sleeved on the corresponding screw rod (4), the front sides of the four first bevel gears (6) are engaged with a second bevel gear (13) rotatably mounted in the first grooves (15), and the front side of each second bevel gear, dwang (14) keep away from the one end of second bevel gear (13) and extend to pivot (1) outer and fixed mounting have knob (11), one side fixed mounting that arc (2) are close to pivot (1) has two locating levers (5), and the one end that corresponding arc (2) were kept away from in locating lever (5) extends to first groove (15), and pivot (1) slip cap is established on eight locating levers (5), and screw rod (4) are located between two locating levers (5) that correspond.

2. The semi-trailer suspension balance arm as claimed in claim 1, characterized in that the side wall of the first groove (15) is provided with four threaded holes in a ring shape, and the threaded holes are in threaded connection with the corresponding threaded rods (4).

3. The semitrailer suspension balancing arm of claim 1, characterized in that eight second through holes are annularly formed in the side wall of the first groove (15), and the side wall of each second through hole is slidably connected with the outer side of the corresponding positioning rod (5).

4. A semi-trailer suspension equalizer arm as claimed in claim 1, characterized in that said first through hole (8) is internally fixed with a first bearing, the inner ring of which is fixedly sleeved with the outer side of the corresponding connection tube (9).

5. The semi-trailer suspension balance arm according to claim 1, characterized in that the two sides of the screw (4) are both provided with a sliding groove, one side of the first bevel gear (6) is provided with a circular hole, the side wall of the circular hole is fixedly provided with two sliding blocks, and the sliding blocks are slidably connected with the corresponding sliding grooves.

6. A semi-trailer suspension equalizer arm as claimed in claim 1, characterized in that a second bearing (12) is fixedly secured in said first groove (15), the inner race of the second bearing (12) being fixedly connected to the outer side of the second bevel gear (13).

7. The semitrailer suspension balancing arm of claim 1, characterized in that the side of the arc-shaped plate (2) away from the rotating shaft (1) is fixedly bonded with an anti-slip rubber (3).

8. Semi-trailer suspension equalizer arm as claimed in claim 1, characterized in that the inner diameter of both mounting holes is the same as the inner diameter of both bushings (17).