CN112897390B

CN112897390B - Assembly trolley

Info

Publication number: CN112897390B
Application number: CN202110104489.7A
Authority: CN
Inventors: 易晓岚; 徐山; 裴圣; 徐志明; 张永亮; 赵国平
Original assignee: China Railway Construction Heavy Industry Group Co Ltd
Current assignee: China Railway Construction Heavy Industry Group Co Ltd
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2022-12-20
Anticipated expiration: 2041-01-26
Also published as: CN112897390A

Abstract

The invention discloses an assembly trolley, which comprises: a chassis; the main lifting mechanism is arranged on the underframe and is manually controlled, and an assembly workbench is arranged on the main lifting mechanism; the universal ball is arranged at the bottom of the underframe; through manual control's truckle elevating system, connect in the chassis, the walking truckle is connected to truckle elevating system's bottom, and truckle elevating system can drive the walking truckle and go up and down to make the walking truckle stretch out downwards in universal ball below or upwards retract to the universal ball top. The assembly trolley is provided with the walking trundles and the universal balls, and when the walking trundles touch the ground, the trolley can move quickly; in the assembling process, the universal ball bears the weight, and the position of the assembling trolley can be finely adjusted by means of random mobility of the universal ball. Through the arrangement of the manually controlled main lifting mechanism and the manually driven caster lifting mechanism, the constraint of the line arrangement of the electro-hydraulic driving system on the space position of the assembly trolley can be reduced, and the movement flexibility of the trolley is improved.

Description

Assembly trolley

Technical Field

The invention belongs to the field of mechanical assembly, and particularly relates to an assembly trolley.

Background

In the mechanical assembly process, many assembly operations require the lifting mechanism to mount the parts to be assembled from bottom to top. In the assembly process, generally, conveying equipment is needed to convey structural members to be assembled to an appointed station, and then the structural members are positioned and assembled from top to bottom by using a lifting device. However, most of the lifting devices use an electric hydraulic pump, and can be used only by connecting an electric wire with alternating current, the horizontal position of the lifting device is difficult to flexibly adjust due to the constraint of the electric wire, and the specific position of a structural part to be assembled in the horizontal direction is difficult to accurately adjust.

Therefore, how to provide an assembly trolley capable of being flexibly adjusted becomes a problem to be solved.

Disclosure of Invention

In view of the above, the present invention provides an assembly trolley, which can be quickly and flexibly adjusted in position.

In order to achieve the purpose, the invention provides the following technical scheme:

an assembly trolley comprising:

a chassis;

the main lifting mechanism is manually controlled and arranged on the underframe, and an assembly workbench is arranged on the main lifting mechanism;

the universal ball is arranged at the bottom of the underframe;

the bottom frame is connected with a caster lifting mechanism through manual control, the bottom end of the caster lifting mechanism is connected with a walking caster, and the caster lifting mechanism can drive the walking caster to lift so that the walking caster downwards extends out of the lower part of the universal ball or upwards retracts to the upper part of the universal ball.

Preferably, the caster lifting mechanism and the main lifting mechanism are respectively connected to a manual hydraulic pump through a reversing valve set so as to switch manual control over the caster lifting mechanism and the main lifting mechanism; the manual hydraulic pump and the reversing valve group are arranged on the underframe.

Preferably, the base frame is connected with a boosting rod through a pivot shaft; the power-assisted rod can rotate to the inside of the underframe or rotate out of the underframe.

Preferably, handrails are arranged on the base frame, and the handrails and the power-assisted rods are respectively arranged at two ends of the base frame in the traveling direction of the walking casters.

Preferably, the base frame comprises a middle support and a base arranged on the lower side of the middle support, the main lifting mechanism is arranged on the middle support, the universal ball is connected to the lower portion of the base, and the pivot shaft is arranged between the middle support and the base.

Preferably, the edge of the middle support horizontally extends out of the base, and the caster lifting mechanism is connected to the middle support.

Preferably, the main lifting mechanism is a scissor lifting mechanism.

Preferably, a workpiece clamping seat is arranged on the assembling workbench.

Preferably, the bottom of the assembly workbench is provided with a safety protection plate so as to be separated between the assembly workbench and the underframe.

The invention provides an assembly trolley, which comprises: a chassis; the main lifting mechanism is arranged on the underframe and is manually controlled, and an assembly workbench is arranged on the main lifting mechanism; the universal ball is arranged at the bottom of the underframe; through manual control's truckle elevating system, connect in the chassis, the walking truckle is connected to truckle elevating system's bottom, and truckle elevating system can drive the walking truckle and go up and down to make the walking truckle stretch out downwards in universal ball below or upwards retract to the universal ball top.

The assembly trolley is provided with the walking trundles and the universal balls, the ground contact condition can be switched, and when the trolley is in no-load and the walking trundles contact with the ground, the trolley can be rapidly moved, so that the trolley is moved to an appointed station. In the assembling process, when the walking caster wheel rises to the ground and the universal ball contacts the ground, the position of the assembling trolley can be finely adjusted by means of random mobility of the universal ball, so that a structural part on the assembling workbench can be finely adjusted at a specified station, the structural part can accurately move to a set assembling position, the assembling efficiency of the structural part is improved, and in addition, in the assembling process, the universal ball bears the weight of, and the damage rate of the walking caster wheel can be reduced. Through the arrangement of the manually controlled main lifting mechanism and the manually driven caster lifting mechanism, the constraint of the line arrangement of the electro-hydraulic driving system on the space position of the assembly trolley can be reduced, and the flexibility and the safety of the movement of the trolley are improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a block diagram of an assembly cart according to the present invention;

FIG. 2 is a structural view of the caster lifting mechanism of the assembly cart of the present invention;

FIG. 3 is a block diagram of the main lift mechanism of the assembly cart provided by the present invention;

FIG. 4 is a structural view of a universal ball of the assembly cart of the present invention;

FIG. 5 is a front view of the assembly vehicle of the present invention in the process of traveling toward a designated station;

FIG. 6 is a front view of the assembly cart of the present invention after the cart has moved to a designated station and the casters have been raised;

FIG. 7 is a front view of the assembly cart of the present invention after a workpiece is placed on the assembly table;

FIG. 8 is a front view of the assembly cart of the present invention after the main lift mechanism has lifted the workpiece;

FIG. 9 is a front view of the assembly cart of the present invention after the power assist lever is extended;

FIG. 10 is a front view of the assembly cart of the present invention during assembly of a workpiece;

FIG. 11 is a front view of the assembly cart provided by the present invention;

fig. 12 is a side view of an assembly cart provided by the present invention.

Reference numerals:

the safety protection device comprises an underframe 1, a base 11, a middle support 12, a boosting rod 13, a safety protection plate 14 and a handrail 15;

assembling the workbench 2 and the workpiece clamping seat 21;

a universal ball 3;

a caster lifting mechanism 4 for moving the caster 41;

a main elevating mechanism 5;

a manual hydraulic pump 6, a reversing valve group 61;

a structural part 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The core of the invention is to provide an assembly trolley, which can quickly and flexibly adjust the position.

In an embodiment of the assembly cart of the present invention, please refer to fig. 1 to 12, which includes a bottom frame 1, a main lifting mechanism 5, a universal ball 3, a caster lifting mechanism 4, and a walking caster 41, wherein the main lifting mechanism 5 manually controls the lifting of the output end thereof. The main lifting mechanism 5 is arranged on the underframe 1, and the main lifting mechanism 5 is provided with an assembly workbench 2.

The universal ball 3 is connected to the bottom of the underframe 1. The caster lifting mechanism 4 is connected to the chassis 1, and the bottom end of the caster lifting mechanism 4 is connected to a walking caster 41, and the walking caster 41 is specifically a directional wheel. The lifting of the output end of the caster lifting mechanism 4 is manually controlled, and the caster lifting mechanism 4 can drive the walking caster 41 to lift, so that the walking caster 41 extends downwards below the universal ball 3 or retracts upwards to the upper part of the universal ball 3.

The assembly trolley is provided with the walking caster 41 and the universal ball 3, the contact with the ground can be switched, and when the trolley is idle and the walking caster 41 contacts the ground, the trolley can move quickly to enable the trolley to move to a designated station. In the assembling process, when the walking caster 41 is lifted off the ground and the universal ball 3 touches the ground, the position of the assembling trolley can be finely adjusted by means of random mobility of the universal ball 3, so that the structural member 7 on the assembling workbench 2 can be finely adjusted at a specified station, the structural member can accurately move to a set assembling position, the assembling efficiency of the structural member 7 is improved, and in addition, in the assembling process, the damage rate of the walking caster 41 can be reduced due to the bearing of the universal ball 3. Through the arrangement of the manually controlled main lifting mechanism 5 and the manually driven caster lifting mechanism 4, the restriction of the line arrangement of the electro-hydraulic driving system on the space position of the assembly trolley can be reduced, and the flexibility and the safety of the movement of the trolley are improved.

Further, referring to fig. 1, the caster lifting mechanism 4 and the main lifting mechanism 5 are respectively connected to the manual hydraulic pump 6 through a reversing valve set 61, and accordingly, the caster lifting mechanism 4 and the main lifting mechanism 5 are both hydraulic cylinders. The manual hydraulic pump 6 and the reversing valve group 61 are arranged on the chassis 1.

The manual hydraulic pump 6 can switch the manual control of the caster lifting mechanism 4 and the main lifting mechanism 5 by the change-over valve group 61. When the manual hydraulic pump 6 is connected to the caster lifting mechanism 4 through the reversing valve group 61, the manual hydraulic pump 6 can suck oil from the caster lifting mechanism 4 or discharge oil to the caster lifting mechanism 4, thereby realizing the lifting of the walking caster 41. When the manual hydraulic pump 6 is connected to the main lifting mechanism 5 through the reversing valve group 61, the manual hydraulic pump 6 can suck oil from the main lifting mechanism 5 or discharge oil to the main lifting mechanism 5, so that the assembly workbench 2 is lifted, and the structural member 7 to be assembled is lifted to a specified height according to the actual installation height of the structural member 7.

The lifting of the trundle lifting mechanism 4 and the main lifting mechanism 5 is respectively controlled by the same manual hydraulic pump 6 through the reversing valve group 61, the trolley structure is simplified, the limitation of a power transmission line and a power supply is avoided by using the manual hydraulic pump 6, the flexibility and the safety of the trolley are improved, and in addition, the hydraulic drive is adopted, so that the application range of the trolley assembly is enlarged. Of course, in other embodiments, the caster lifting mechanism 4 and the main lifting mechanism 5 may be individually connected to the corresponding manual hydraulic pumps 6 to be manually controlled.

Further, the base frame 1 is connected with a boosting rod 13 through a pivot shaft. The assist lever 13 can be rotated to the inside of the base frame 1 or out of the base frame 1. When the assembly trolley moves towards the designated station, the handrail 15 is retracted into the underframe 1, so that the movement flexibility of the assembly trolley can be ensured; after the trolley moves in place, the assistance rod 13 is rotated out, and the assistance rod 13 can provide force points for workers to finely adjust the position of the assembled trolley, so that the convenience in use of the trolley is improved. Of course, in other embodiments, the power-assisted rod 13 may be slidably connected to the chassis 1.

Further, handrails 15 are provided on the base frame 1, and the handrails 15 and the assist lever 13 are respectively provided on both ends of the base frame 1 in the traveling direction of the travel caster 41. Through the arrangement of the handrails 15, a worker can push the handrails 15 to control the advance of the trolley, so that the trolley is convenient to move. In addition, at appointed station, the staff can adjust the dolly overall position with the help of handrail 15, helping hand pole 13 and universal ball 3 to the realization is treated the fine setting of assembly's structure 7 position, accomplishes the accurate positioning assembly of structure 7, realizes the accurate location of structure 7 fast.

Further, chassis 1 includes middle support 12 and sets up base 11 in middle support 12 downside, and main elevating system 5 sets up on middle support 12, and universal ball 3 is connected in base 11 below, and the pivot axis between chassis 1 and helping hand pole 13 sets up between middle support 12 and base 11, can improve the reliability that helping hand pole 13 is connected.

Further, the side portion of the intermediate frame 12 horizontally protrudes outside the base 11, and the caster elevating mechanism 4 is connected to the intermediate frame 12 so as to provide a sufficient contraction space for the walking caster 41.

Furthermore, the main lifting mechanism 5 is a scissor type lifting mechanism, so that the structure is stable and has strong bearing capacity, and the assembly of the structural member 7 with the weight of less than 3 tons can be completed.

Further, the workpiece clamping seat 21 is arranged on the assembly workbench 2, so that the structural part 7 to be assembled on the assembly workbench 2 can be reliably positioned, and the placing stability of the structural part 7 on the assembly workbench 2 is improved.

Further, the bottom of assembly workstation 2 is equipped with safety shield 14 to the separation is between assembly workstation 2 and chassis 1, avoids assembly workstation 2 to descend to directly striking chassis 1.

The working principle of the assembly trolley provided by the embodiment is as follows:

as shown in fig. 5, the assembly trolley is rapidly moved to a designated station by the walking casters 41;

as shown in fig. 6, the reversing valve set 61 is switched to connect the manual hydraulic pump 6 with the caster lifting mechanism 4, and adjust the manual hydraulic pump 6, so that the caster lifting mechanism 4 drives the walking caster 41 to ascend, and the walking caster 41 is folded and converted into a universal ball 3 for bearing;

as shown in fig. 7, the structural member 7 to be assembled is placed on the assembly table 2;

as shown in fig. 8, the reversing valve set 61 is switched to connect the manual hydraulic pump 6 with the main lifting mechanism 5, the manual hydraulic pump 6 is adjusted, the main lifting mechanism 5 is adjusted first according to the actual assembly height on site, and the assembly workbench 2 is lifted to a certain height (generally, the height is lower than the assembly height by about 100mm first);

as shown in fig. 9, the assembly trolley is moved according to the assembly position to roughly position the structural member 7, the assisting rod 13 is pulled out in a rotating manner, the bottom universal ball 3 is adjusted by taking the handrail 15 and the assisting rod 13 as the acting points, fine adjustment of the front, back, left and right positions of the structural member 7 is realized, meanwhile, the height of the structural member 7 is adjusted by slowly adjusting the main lifting mechanism 5, accurate positioning of the structural member 7 is completed, and the structural member 7 is assembled successfully and quickly;

as shown in fig. 10, the power-assisted rod 13 is retracted, the reversing valve set 61 is switched, so that the manual hydraulic pump 6 respectively adjusts the main lifting mechanism 5 to the bottom and adjusts the caster lifting mechanism 4 to put down the travelling caster 41, and the trolley is rapidly moved to the storage position.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The assembly trolley provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. An assembly trolley, comprising: a chassis (1); the manual control type automatic assembling machine is characterized in that a main lifting mechanism (5) is controlled manually, the main lifting mechanism (5) is arranged on the bottom frame (1), and an assembling workbench (2) is arranged on the main lifting mechanism (5); the universal ball (3) is arranged at the bottom of the underframe (1); the manual control caster lifting mechanism (4) is connected to the base frame (1), the bottom end of the caster lifting mechanism (4) is connected with a walking caster (41), and the caster lifting mechanism (4) can drive the walking caster (41) to lift so that the walking caster (41) extends downwards below the universal ball (3) or retracts upwards to the upper part of the universal ball (3);

the caster lifting mechanism (4) and the main lifting mechanism (5) are respectively connected to a manual hydraulic pump (6) through a reversing valve set (61) to switch to manually control the caster lifting mechanism (4) and the main lifting mechanism (5); the manual hydraulic pump (6) and the reversing valve group (61) are arranged on the underframe (1);

the underframe (1) is connected with a power-assisted rod (13) through a pivot shaft; the power-assisted rod (13) can rotate to the inside of the underframe (1) or rotate out of the underframe (1);

be equipped with handrail (15) on chassis (1), handrail (15) with helping hand pole (13) are located respectively on chassis (1) be in walking truckle (41) ascending both ends in the advancing direction.

2. The assembly trolley according to claim 1, characterized in that the base frame (1) comprises an intermediate support (12) and a base (11) arranged on the underside of the intermediate support (12), the main lifting mechanism (5) is arranged on the intermediate support (12), the cardan ball (3) is connected below the base (11), and the pivot shaft is arranged between the intermediate support (12) and the base (11).

3. The assembly trolley according to claim 2, characterized in that the edge of the intermediate support (12) protrudes horizontally beyond the base (11), the caster lifting mechanism (4) being connected to the intermediate support (12).

4. Assembly trolley according to any one of claims 1-3, characterized in that the main lifting mechanism (5) is a scissor lifting mechanism.

5. Assembly trolley according to any one of claims 1-3, characterized in that the assembly table (2) is provided with a workpiece holder (21).

6. The assembly trolley according to any of the claims 1 to 3, characterized in that the bottom of the assembly bench (2) is provided with a safety shield (14) to be obstructed between the assembly bench (2) and the undercarriage (1).