CN214162882U

CN214162882U - Tractor engine and chassis assembly workbench

Info

Publication number: CN214162882U
Application number: CN202023094516.7U
Authority: CN
Inventors: 李世英; 李雅静; 周陆洋; 李淑华
Original assignee: LUOYANG SHIYING MACHINERY PRODUCTION CO Ltd
Current assignee: LUOYANG SHIYING MACHINERY PRODUCTION CO Ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-09-10
Anticipated expiration: 2030-12-21

Abstract

A tractor engine and chassis assembly workbench comprises an assembly rail car, an energy accumulator, an auxiliary support cylinder, an intermediate support platform and a workbench, wherein the intermediate support platform is in floating connection with the workbench; when the engine is assembled with the chassis, the chassis is fixedly arranged on the workbench, the workbench is positioned at an engine assembling station, the engine is lifted by the crown block to move to the position above the assembling workbench and slowly fall down, so that the assembling surface of the engine is close to the assembling surface of the chassis, an assembler utilizes the auxiliary supporting cylinder to provide power through the energy accumulator to assist in lifting the workbench, the workbench is inclined by utilizing the floating characteristic of the workbench, the parallel fit of the assembling surface of the engine and the assembling surface of the chassis is ensured, the alignment of the engine and the chassis is easy, and the assembling efficiency is greatly improved.

Description

Tractor engine and chassis assembly workbench

Technical Field

The utility model relates to a frock technical field for tractor assembly, concretely relates to tractor engine and chassis assembly workbench.

Background

On a small assembly line of the tractor, a tractor chassis is fixedly arranged on a movable workbench and moves along a main assembly line rail; when the engine is assembled with the chassis, the engine is hoisted by a crane, slowly falls on the chassis, and is aligned with the chassis by being righted by people in the falling process; because the weight of the engine is heavy, and the bottom assembly surface of the engine is not parallel to the chassis assembly surface after being hoisted by the crown block, the alignment of the engine and the chassis is very difficult, and the assembly efficiency is extremely low.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the background art, the utility model discloses a tractor engine and chassis assembly workbench, which comprises an assembly railcar, an energy accumulator, an auxiliary support cylinder, an intermediate support platform and a workbench, wherein the intermediate support platform is in floating connection with the workbench; when the engine is assembled with the chassis, the chassis is fixedly arranged on the workbench, the workbench is positioned at an engine assembling station, the engine is lifted by the crown block to move above the assembling workbench and slowly fall down, when the assembling surface of the engine is close to the assembling surface of the chassis, an assembler utilizes the auxiliary supporting cylinder to provide power for assisting in lifting the workbench through the energy accumulator, the workbench is inclined by utilizing the floating characteristic of the workbench, the parallel fit of the assembling surface of the engine and the assembling surface of the chassis is ensured, the alignment of the engine and the chassis is easy, and therefore the assembling efficiency is greatly improved.

In order to realize the utility model aims at, the utility model adopts the following technical scheme: a tractor engine and chassis assembly workbench comprises an assembly rail car, wherein an energy accumulator is fixedly arranged in the middle of the upper part of the assembly rail car, a high-pressure air bag is arranged in the energy accumulator, hydraulic oil is filled outside the high-pressure air bag, and the hydraulic oil has set pressure under the action of the high-pressure air bag; auxiliary supporting cylinders are fixedly arranged at four corners of the upper part of the assembly rail car, and the energy accumulator is connected with the auxiliary supporting cylinders through high-pressure hoses; the upper part of the auxiliary supporting cylinder is fixedly provided with a middle supporting platform, the upper part of the middle supporting platform is provided with a workbench in a floating manner, and the workbench can move up and down in a limited range relative to the middle supporting platform and can incline towards any direction;

a piston rod extends out of the upper part of the auxiliary supporting cylinder, through holes are formed in four corners of the middle supporting table, the piston rod penetrates through the through holes of the middle supporting table, and the top of the piston rod abuts against the four corners of the bottom of the workbench;

when the engine is assembled, the engine is lifted by the crown block to move above the workbench and slowly fall down, so that the assembly surface of the engine is close to the assembly surface of the chassis, an assembler utilizes the auxiliary support cylinder to provide power to assist in lifting the workbench through the energy accumulator, the workbench is inclined, and the parallel fit of the assembly surface of the engine and the assembly surface of the chassis is ensured.

Furthermore, a piston is arranged in the auxiliary supporting cylinder and is fixedly connected with the piston rod; the piston is provided with a through hole, the upper cavity and the lower cavity of the auxiliary supporting cylinder are communicated through the through hole, hydraulic oil in the auxiliary supporting cylinder fills the upper cavity and the lower cavity of the auxiliary supporting cylinder, and the upper side and the lower side of the piston are acted simultaneously; because the piston rod is arranged at the upper part of the piston, the area difference exists between the upper side and the lower side of the piston, the pressure difference is irrelevant to the position of the piston in the auxiliary supporting cylinder, and the pressure difference is set to be equal to the weight of the workbench and the chassis fixedly arranged on the workbench, so that the workbench and the chassis are actually in a suspension state after the chassis is arranged on the workbench, namely the workbench and the chassis can realize the up-and-down motion when the workbench and the chassis are subjected to smaller external force in a certain range.

Furthermore, a supporting ball head is fixedly arranged in the middle of the upper part of the middle supporting platform, a supporting ball seat is fixedly arranged in the middle of the lower part of the workbench, the supporting ball head is arranged in the supporting ball seat in a floating manner, and the supporting ball seat can do vertical movement and swing at any angle within a set range relative to the supporting ball head; the workbench can be arranged at a height and any deflection angle under the supporting action of the auxiliary supporting cylinder in cooperation with a floating connecting structure between the workbench and the middle supporting platform.

Further, the tractor engine and chassis assembling workbench further comprises an eccentric locking mechanism; the eccentric locking mechanism comprises an eccentric wheel, an eccentric mechanism fixing plate and a locking handle; the eccentric mechanism fixing plates are fixedly arranged on the side walls of the four corners of the workbench; a rotating shaft is fixedly connected between the eccentric wheel and the locking handle, the eccentric wheel and the locking handle are rotatably connected with an eccentric mechanism fixing plate through the rotating shaft, and the eccentric wheel is arranged between the intermediate supporting table and the workbench; after the alignment of the engine and the chassis is completed, the locking handle is pulled to lock the position of the workbench relative to the middle support platform and restore the workbench to the horizontal state.

A sliding groove is formed in the lower side of the eccentric mechanism fixing plate, a limiting block is fixedly arranged on the side face of the middle supporting table and arranged in the sliding groove of the eccentric mechanism fixing plate, and the limiting block is used for limiting the upward moving range of the workbench and preventing the supporting ball head from falling off from the supporting ball seat; meanwhile, when the eccentric locking mechanisms lock the workbench, the eccentric wheels and the limiting blocks simultaneously act to lock the workbench, and when the four eccentric locking mechanisms on the side walls of the four corners of the workbench are simultaneously locked, the workbench is in a horizontal state.

The top of the piston rod is provided with a bearing; when the workbench is adjusted by any deflection angle, relative sliding friction can occur between the top of the piston rod and the bottom of the workbench, and the bearing arranged at the top of the piston rod can convert the relative sliding friction between the top of the piston rod and the bottom of the workbench into rolling friction so as to reduce friction resistance and make the workbench easier when adjusted by any deflection angle.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has: the utility model discloses a tractor engine and chassis assembly workbench, which comprises an assembly railcar, an energy accumulator, an auxiliary support cylinder, an intermediate support platform and a workbench, wherein the intermediate support platform is connected with the workbench in a floating way; when the engine is assembled with the chassis, the chassis is fixedly arranged on the workbench, the workbench is positioned at an engine assembling station, the engine is lifted by the crown block to move to the position above the assembling workbench and slowly fall down, so that the assembling surface of the engine is close to the assembling surface of the chassis, an assembler utilizes the auxiliary supporting cylinder to provide power through the energy accumulator to assist in lifting the workbench, the workbench is inclined by utilizing the floating characteristic of the workbench, the parallel fit of the assembling surface of the engine and the assembling surface of the chassis is ensured, the alignment of the engine and the chassis is easy, and the assembling efficiency is greatly improved.

Drawings

FIG. 1 is a schematic view of a forward structure of a tractor engine and chassis mounting workbench;

FIG. 2 is a schematic side view of a tractor engine and chassis mounting table;

fig. 3 is a schematic structural view of the auxiliary support cylinder.

In the figure: 1. assembling a rail car (1); 2. an accumulator; 3. an auxiliary support cylinder; 3.1, a piston; 3.2, a piston rod; 4. an intermediate support table; 4.1, supporting a ball head; 5. a work table; 5.1, supporting a ball seat; 6. an eccentric locking mechanism; 6.1, an eccentric wheel; 6.2, fixing a plate of the eccentric mechanism; 6.3, locking a handle; 7. a tractor chassis; 8. an engine.

Detailed Description

The invention will be explained in more detail by the following examples, which disclose the invention and are intended to protect all technical improvements within the scope of the invention.

An assembly workbench for a tractor engine and a chassis comprises an assembly rail car 1, wherein an energy accumulator 2 is fixedly arranged in the middle of the upper part of the assembly rail car 1, auxiliary support cylinders 3 are fixedly arranged at four corners of the upper part of the assembly rail car 1, and the energy accumulator 2 is connected with the auxiliary support cylinders 3 through high-pressure hoses; a middle supporting table 4 is fixedly arranged at the upper part of the auxiliary supporting cylinder 3, a workbench 5 is arranged at the upper part of the middle supporting table 4, a supporting ball head 4.1 is fixedly arranged at the middle of the upper part of the middle supporting table 4, and a supporting ball seat 5.1 is fixedly arranged at the middle of the lower part of the workbench 5; the workbench 5 is arranged on the upper part of the middle support platform 4 in a floating way through a support ball head 4.1 and a support ball seat 5.1; a piston 3.1 is arranged in the auxiliary supporting cylinder 3, a through hole is formed in the piston 3.1, and an upper cavity and a lower cavity of the auxiliary supporting cylinder 3 are communicated through the through hole; the piston 3.1 is fixedly connected with a piston rod 3.2; through holes are formed in four corners of the middle supporting platform 4, the piston rod 3.2 penetrates through the through holes of the middle supporting platform 4, bearings are arranged at the top of the middle supporting platform, and the bearings abut against the four corners of the bottom of the workbench 5;

the four-corner side walls of the workbench 5 are also fixedly provided with eccentric locking mechanisms 6; the eccentric locking mechanism 6 comprises an eccentric wheel 6.1, an eccentric mechanism fixing plate 6.2 and a locking handle 6.3, and the eccentric mechanism fixing plate 6.2 is fixedly arranged on the side walls of the four corners of the workbench 5; a rotating shaft is fixedly connected between the eccentric wheel 6.1 and the locking handle 6.3, the eccentric wheel 6.1 and the locking handle 6.3 are rotatably connected with an eccentric mechanism fixing plate 6.2 through the rotating shaft, and the eccentric wheel 6.1 is arranged between the intermediate supporting table 4 and the workbench 5; the downside of the eccentric mechanism fixing plate 6.2 is provided with a sliding groove, the side surface of the middle supporting table 4 is fixedly provided with a limiting block, and the limiting block is arranged in the sliding groove of the eccentric mechanism fixing plate 6.2.

When the tractor engine and chassis assembly workbench works, the tractor chassis 7 is fixedly arranged on the upper part of the workbench 5, and the tractor engine and chassis assembly workbench is positioned at an engine assembly station; the crane hoisting engine 8 moves to the upper part of the tractor chassis to fall slowly; when the assembling surface of the engine 8 is close to that of the tractor chassis 7, an assembler pulls the workbench 5 to ascend so that the assembling surface of the tractor chassis 7 is attached to the assembling surface of the engine 8 in parallel, then firstly aligns to one bolt hole position, puts on a bolt and puts on a nut, then pulls upwards and shakes the workbench 5, and then sequentially aligns to other bolt holes, puts on a bolt and puts on a nut; after all the bolts are threaded, locking the four eccentric locking mechanisms 6; and shaking the engine 8, slowly unloading the pulling force of the crown block on the engine 8, limiting by using the threaded bolt, accurately aligning the engine and the chassis, and finally locking all the nuts in sequence.

The part of the utility model not detailed is prior art.

Claims

1. The utility model provides a tractor engine and chassis assembly workstation which characterized by: the energy storage device comprises an assembly rail car (1), wherein an energy storage device (2) is fixedly arranged in the middle of the upper part of the assembly rail car (1), auxiliary supporting cylinders (3) are fixedly arranged at four corners of the upper part of the assembly rail car (1), and the energy storage device (2) is connected with the auxiliary supporting cylinders (3) through high-pressure hoses; the upper part of the auxiliary supporting cylinder (3) is fixedly provided with a middle supporting platform (4), and the upper part of the middle supporting platform (4) is provided with a workbench (5) in a floating manner;

the auxiliary supporting cylinder (3) upper portion is stretched out and is had piston rod (3.2), middle brace table (4) four corners is equipped with the through-hole, and piston rod (3.2) pass the through-hole of middle brace table (4), and the top is contradicted in workstation (5) bottom four corners.

2. A tractor engine and chassis assembly station as claimed in claim 1, wherein: a piston (3.1) is arranged in the auxiliary supporting cylinder (3), a through hole is formed in the piston (3.1), and the upper cavity and the lower cavity of the auxiliary supporting cylinder (3) are communicated through the through hole; the piston (3.1) is fixedly connected with the piston rod (3.2).

3. A tractor engine and chassis assembly station as claimed in claim 1, wherein: a support ball head (4.1) is fixedly arranged in the middle of the upper part of the middle support platform (4); a supporting ball seat (5.1) is fixedly arranged in the middle of the lower part of the workbench (5); the workbench (5) is matched with the supporting ball head (4.1) and the supporting ball seat (5.1) and is arranged on the upper part of the middle supporting platform (4) in a floating manner.

4. A tractor engine and chassis assembly station as claimed in claim 1, wherein: the device also comprises an eccentric locking mechanism (6); the eccentric locking mechanism (6) comprises an eccentric wheel (6.1), an eccentric mechanism fixing plate (6.2) and a locking handle (6.3), wherein the eccentric mechanism fixing plate (6.2) is fixedly arranged on the side walls of four corners of the workbench (5); the eccentric wheel (6.1) and the locking handle (6.3) are fixedly connected with a rotating shaft, the eccentric wheel (6.1) and the locking handle (6.3) are rotatably connected with an eccentric mechanism fixing plate (6.2) through the rotating shaft, and the eccentric wheel (6.1) is arranged between the middle supporting table (4) and the workbench (5).

5. The tractor engine and chassis assembly table of claim 4, wherein: the lower side of the eccentric mechanism fixing plate (6.2) is provided with a sliding groove, the side surface of the middle supporting table (4) is fixedly provided with a limiting block, and the limiting block is arranged in the sliding groove of the eccentric mechanism fixing plate (6.2).

6. A tractor engine and chassis assembly station as claimed in claim 1, wherein: and a bearing is arranged at the top of the piston rod (3.2).