CN211255148U

CN211255148U - Forward movement formula fork truck frame base structure

Info

Publication number: CN211255148U
Application number: CN201922037071.XU
Authority: CN
Inventors: 郦彤炜; 何振华; 尤胜超; 董镌; 唐冲
Original assignee: Anhui Heli Co Ltd
Current assignee: Anhui Heli Co Ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-08-14
Anticipated expiration: 2029-11-22

Abstract

The utility model discloses a reach forklift frame base structure, including the bottom plate and set up in the support camber beam on the bottom plate, set up the bottom plate groove on the bottom plate, the support camber beam is monolithic structure, the support camber beam includes the arc base and is located the first side and the second side at arc base both ends, the contained angle between the extension line of first side and the second side is the acute angle, the support camber beam fixed connection in the bottom plate upper end, the support camber beam winds the bottom plate groove is arranged, the support camber beam of this application is monolithic structure, through the one shot forming of die mould process, because two sides of the support camber beam in this application are non-parallel arrangement, and two side contained angles are 9.75, through setting up this contained angle, can guarantee after the die mould shaping, the side of support camber beam can not produce the resilience that influences the precision, the production precision of the supporting camber beam is ensured, and the consistency of the supporting camber beam is also improved.

Description

Forward movement formula fork truck frame base structure

Technical Field

The utility model relates to a fork truck frame base technical field specifically is an antedisplacement formula fork truck frame base structure.

Background

The base in the forward fork truck frame is the main structural member for connecting the truck body. The existing base structure is that a curved beam is supported by a welding part on a bottom plate; the supporting bent beam is designed into a U-shaped structure, two side edges are parallel to each other, and the profiling processing part has resilience which is difficult to eliminate, and the parallelism can not be ensured, so the production process adopts the steps of splitting into a left bent beam and a right bent beam, respectively blanking, bending, correcting, beveling the end faces, welding to obtain the supporting bent beam, and then assembling and welding the supporting bent beam with a bottom plate.

The production manufacturability of the supporting bent beam is poor, the split is required to be two pieces of production, the operation efficiency is low, and the labor intensity is large: assembly welding requires an operator to manually mark to determine the welding position of a part, and the assembly welding is carried out according to the line and the shape of the part; the positioning accuracy is easily affected by the accumulated shape errors of the parts.

The supporting camber beam has poor appearance consistency and unstable quality: the influence of part shape errors causes the shape precision of the supporting camber beam to be easy to fluctuate, so that the phenomenon of uneven gaps is caused when the supporting camber beam and the bottom plate are assembled and welded at the later stage, the problems of on-site welding and polishing need to be solved, the labor intensity of operators is high, and the quality control is difficult.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a antedisplacement formula fork truck frame base structure to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a antedisplacement formula fork truck frame base structure, include the bottom plate and set up in support camber beam on the bottom plate, the bottom plate groove has been seted up on the bottom plate, it is monolithic structure to support the camber beam, it includes the arc base and is located the first side and the second side at arc base both ends to support the camber beam, first side with contained angle between the extension line of second side is the acute angle, support camber beam fixed connection in the bottom plate upper end, it winds to support the camber beam the bottom plate groove is arranged, the bottom plate, support camber beam, the coaxial arrangement of bottom plate groove, the outline in bottom plate groove with the interior profile of supporting the camber beam is similar structure, bottom plate groove outline size is not more than support the interior profile size of camber beam.

As a further aspect of the present invention: the included angle between the extension lines of the first side edge and the second side edge is not more than 10 degrees.

As a further aspect of the present invention: the included angle of the extension line of the first side edge and the second side edge is 9.75 degrees.

As a further aspect of the present invention: the first side edge and the second side edge are tangent to two ends of the arc bottom edge respectively.

As a further aspect of the present invention: the bottom plate groove comprises a bottom plate groove arc-shaped bottom and bottom plate groove side plates arranged on two sides of the bottom plate groove arc-shaped bottom.

As a further aspect of the present invention: the bottom plate comprises a bottom plate main body, the bottom plate groove is formed in the bottom plate main body, the bottom plate main body is close to the end portion of the bottom plate groove, and the end portion of the bottom plate main body extends towards the direction close to the bottom plate groove to form a protrusion.

As a further aspect of the present invention: the bulges are provided with two parts which are symmetrically arranged at the end part of the bottom plate groove, the bulges are of arc structures, and the bulges are tangentially connected with the end part of the bottom plate groove.

As a further aspect of the present invention: the bottom plate main body is provided with an offset part, the offset part is positioned at the outer edge of the bottom plate groove, and the support bent beam is fixedly connected to the outer side of the offset part.

As a further aspect of the present invention: the thickness of the offset portion is 10 mm.

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

1. the supporting camber beam is of an integral structure and is formed in one step through a profiling process, and due to the fact that two side edges of the supporting camber beam are arranged in a non-parallel mode, openings of the end portions of the inner two side edges are larger than an inner opening, and the included angle between the two side edges is 9.75 degrees, the side edges of the supporting camber beam can not generate resilience which affects precision after the profiling forming, the production precision of the supporting camber beam is guaranteed, the consistency of the supporting camber beam is improved, in addition, due to the fact that split machining is not needed for welding forming, the production process is simplified, the remaining production efficiency is improved, and error accumulation caused by multiple production processes is eliminated;

2. this application arranges 10 mm's skew portion through the junction at bottom plate and support camber beam, increases the connection area who supports the camber beam in the bottom plate main part through the skew portion, and then reduces the equipment positioning accuracy who has made things convenient for to support the camber beam at the assembly welding in-process, has reduced the production degree of difficulty, has improved production quality, and at the in-process of assembly welding, can not produce the clearance between support camber beam and the bottom plate groove in addition, has guaranteed the uniformity of product.

Drawings

FIG. 1 is a schematic structural diagram of the present embodiment;

FIG. 2 is a schematic view of a bottom plate structure of the present embodiment;

fig. 3 is a schematic view of the structure of the supporting bending beam of the present embodiment.

In the figure: 1-bottom plate, 11-bottom plate main body, 12-bottom plate groove, 13-bottom plate groove arc bottom, 14-bottom plate groove side edge, 15-offset part and 16-projection;

2-supporting bent beam, 21-arc bottom edge, 22-first side edge and 23-second side edge.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, in an embodiment of the present invention, a frame base structure of a forward fork truck includes a bottom plate 1 and a support curved beam 2 disposed on the bottom plate 1;

the bottom plate 1 comprises a bottom plate main body 11, a bottom plate groove 12 is formed in the bottom plate main body 11, the bottom plate groove 12 comprises a bottom plate groove arc-shaped bottom 13, and bottom plate groove side plates 14 at two ends of the bottom plate groove arc-shaped bottom 13 are arranged, two bottom plate groove side edges 14 are tangent to two ends of the bottom plate groove arc-shaped bottom 13 respectively, the two bottom plate groove side plates 14 extend towards the edge of the bottom plate main body 11 and enable the bottom plate main body 11 to form an opening structure at the bottom plate groove 12, the position, close to the end part of the bottom plate groove side plates 14, of the bottom plate main body 11 protrudes inwards to form a protrusion 16, the protrusion 16 is provided with two parts and is symmetrically arranged, the protrusion 16 is of an arc-shaped structure, and the protrusion.

The supporting bent beam 2 is of an integral structure and is formed by one-step processing through a compression molding process, the supporting bent beam 2 is arranged at the upper end of the bottom plate main body 11, the supporting bent beam 2 is arranged around the bottom plate groove 12, the supporting bent beam 2 comprises an arc bottom edge 21 and a first side edge 22 and a second side edge 23 fixedly connected to two ends of the arc bottom edge 21, the first side edge 22 and the second side edge 23 are respectively tangent to two ends of the arc bottom edge 21, in the embodiment, the bottom plate main body 11, the bottom plate groove 12 and the supporting bent beam 2 are coaxially arranged, the shape enclosed inside the supporting bent beam 2 is similar to the shape of the bottom plate groove 12, namely, the arc bottom edge 21 and the arc bottom 13 of the bottom plate groove are of concentric circle structure, the two bottom plate groove side edges 14 are respectively arranged in parallel to the first side edge 22 and the second side edge 23, the size of the supporting bent beam 2 is not smaller than that of the bottom plate groove 12, in the embodiment, the size of, and a deviation part 15 surrounding the bottom plate groove 12 is formed at the direct position of the bottom plate groove 12 on the bottom plate main body 11 and the bottom end of the supporting bent beam 2, the thickness of the deviation part 15 is 10mm, and then the deviation part 15 absorbs the error generated by the connection of the supporting bent beam 2 and the bottom plate main body 11, so that the welding efficiency is ensured.

First side 22 and second side 23 are located the both ends of arc base 21 respectively, and tangent the connection with arc base 21, in addition, first side 22 intersects and the contained angle a between the extension line of second side 23 is the acute angle, and be not more than 10, in this embodiment, first side 22 is 9.75 with contained angle a that second side 23 formed, through setting up contained angle a, make support camber beam 2 after a die mould, be difficult for producing the resilience, the appearance that easily controls support camber beam 2, make the uniformity that supports camber beam 2 of processing good, stable quality, and this contained angle is in the forward moving formula fork truck frame production process, reasonable numerical value of support camber beam contained angle has been formulated through process test, thereby produce the product that satisfies user's operation requirement with more economic method, high quality, high efficiency, low consumption target has been realized.

This embodiment is adding man-hour, at first once only produce the shaping through the die mould process with integral support camber beam 2, in the process of production, guarantee that the contained angle a between first side 22 and the second side 23 is 9.75, after supporting camber beam 2 shaping, can weld support camber beam 2 on bottom plate main part 11, because the size of supporting camber beam 2 is greater than the size of bottom plate groove 12, promptly through leaving 10 mm's skew portion 15, when guaranteeing to support camber beam 2 and bottom plate groove 12 concatenation, support camber beam 2 and bottom plate groove 12 can not appear the clearance between the edge, and also reduced the positioning accuracy who supports between camber beam 2 and the bottom plate groove 12 through setting up skew portion 15, and then very big improvement production efficiency and production quality.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a antedisplacement formula fork truck frame base structure, includes bottom plate (1) and set up in support camber beam (2) on bottom plate (1), bottom plate groove (12) have been seted up in bottom plate (1), its characterized in that, support camber beam (2) are monolithic structure, support camber beam (2) including arc base (21) and be located first side (22) and second side (23) at arc base (21) both ends, first side (22) with contained angle between the extension line of second side (23) is the acute angle, support camber beam (2) fixed connection in bottom plate (1) upper end, support camber beam (2) wind bottom plate groove (12) arrange, bottom plate (1), support camber beam (2), bottom plate groove (12) coaxial arrangement, the outline of bottom plate groove (12) with the interior outline that supports camber beam (2) is similar structure, the outer contour dimension of the bottom plate groove (12) is not larger than the inner contour dimension of the supporting bent beam (2).

2. A reach fork frame base structure as claimed in claim 1, wherein the first side edge (22) forms an angle with the extension of the second side edge (23) of no more than 10 °.

3. A reach fork frame base structure as claimed in claim 2, wherein the angle between the extension of the first side (22) and the second side (23) is 9.75 °.

4. A reach fork frame base structure as claimed in claim 1, wherein the first side edge (22) and the second side edge (23) are respectively tangent to the ends of the curved bottom edge (21).

5. A reach fork truck frame base structure as claimed in claim 1, wherein the floor tub (12) comprises a floor tub curved bottom (13) and floor tub side panels (14) disposed on both sides of the floor tub curved bottom (13).

6. A reach fork truck frame base structure as claimed in claim 1, wherein the base plate (1) comprises a base plate body (11), the base plate groove (12) is opened on the base plate body (11), and the end of the base plate body (11) near the base plate groove (12) extends to form a protrusion (16) near the base plate groove (12).

7. A reach fork truck frame base structure as claimed in claim 6, wherein the protrusions (16) are provided in two and symmetrically disposed at the ends of the floor tub (12), the protrusions (16) are of arcuate configuration, and the protrusions (16) are tangentially connected to the ends of the floor tub (12).

8. A reach fork truck frame base structure as claimed in claim 6, wherein the base plate body (11) is provided with an offset portion (15), the offset portion (15) is located at the outer edge of the base plate groove (12), and the support camber beam (2) is fixedly connected to the outer side of the offset portion (15).

9. A reach fork frame base structure as claimed in claim 8, wherein the offset (15) is 10mm thick.