CN113954752B - Support, assembly and casting mould step - Google Patents
Support, assembly and casting mould step Download PDFInfo
- Publication number
- CN113954752B CN113954752B CN202111449188.4A CN202111449188A CN113954752B CN 113954752 B CN113954752 B CN 113954752B CN 202111449188 A CN202111449188 A CN 202111449188A CN 113954752 B CN113954752 B CN 113954752B
- Authority
- CN
- China
- Prior art keywords
- body part
- beam body
- connecting part
- support
- floor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R3/00—Arrangements of steps or ladders facilitating access to or on the vehicle, e.g. running-boards
- B60R3/002—Running boards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The application discloses a support, assembly and casting mould mark time, relates to commercial car spare part technical field mark time, the support of marking time contains floor connecting portion, roof beam body portion and mark time connecting portion; the floor connecting part is horizontally arranged, the step connecting part is slightly inclined relative to the vertical direction, and the beam body part is in transitional connection between the floor connecting part and the step connecting part; the two L-shaped reinforcing ribs are symmetrically arranged on two sides of the field-shaped frame; the step connecting part is provided with a plurality of connecting holes for butt joint of the step shield; the cross sections of the main body part of the step connecting part and the main body part of the beam body part are symmetrical along the thickness direction. The utility model provides a support, assembly and casting mould step on step, support integrated into one piece have stepped on, have guaranteed the rigidity intensity of support that aluminum alloy marked on step, have satisfied lightweight design requirement, have simplified processing procedure and equipment process, still make dimensional accuracy control simple high-efficient.
Description
Technical Field
The application relates to the technical field of commercial vehicle parts, in particular to a stepping support, a stepping assembly and a casting die.
Background
In the design process of the commercial vehicle, as the height of the cab from the ground is higher, the boarding steps are required to be arranged for passengers to get on or off the vehicle, and in order to bear passengers to get on or off the vehicle safely, the requirement on the stepping strength of the boarding steps is higher, so that the supporting framework is generally arranged at the inner side of the boarding steps.
In the related art, all boarding steps of domestic and foreign commercial vehicles are of steel structures, and mainly adopt two technical schemes, wherein the first technical scheme is a bent pipe type step support (see figure 1), the bent pipe type step support mainly comprises an upper connecting bent plate, a lower connecting bent plate and a middle steel pipe, the upper connecting bent plate, the lower connecting bent plate and the middle steel pipe which meet the requirements are respectively processed, and then the assembly is carried out; the bent pipe type stepping support bears force by using a middle steel pipe, and is connected by connecting bent plates up and down. The second technical scheme is that a steel plate type stamping support (see figure 2) is stamped, wherein the steel plate type stamping support is firstly stamped into a shape meeting design requirements, and then is assembled for a plurality of times; the middle part bears force, and the upper end and the lower end are connected.
Although the two stepping supports can meet the daily requirement of passengers for getting on and off the vehicle, the two stepping supports are complex in structure and relatively heavy in dead weight. In order to respond to national policy and industry demands, the light-weight design of system parts is urgent; in order to make the design lightweight, a designer can think of making the design of the stepping bracket by using an aluminum alloy material, but there is a disadvantage that the strength is often insufficient by using an aluminum alloy. In order to increase the rigidity and strength of the aluminum alloy structure, the structure is required to be as complex as possible, but in this way, the processing procedure and the assembly procedure of the aluminum alloy stepping bracket become more complicated, so that the processing and the assembly are time-consuming and labor-consuming; meanwhile, when single processing is carried out, single dimension is easy to control, but when integral assembly is carried out later, dimension chains are not easy to control, and dimension precision control is difficult.
Disclosure of Invention
Aiming at the defects existing in the prior art, the aim of the application is to provide a stepping support, a stepping assembly and a casting die, wherein the stepping support is integrally formed, so that the rigidity strength of the aluminum alloy stepping support is guaranteed, the lightweight design requirement is met, the processing procedure and the assembly procedure are simplified, and the dimensional accuracy is controlled simply and efficiently.
In order to achieve the above purpose, the technical scheme adopted is as follows: a stepping bracket which is made of aluminum alloy material and is integrally cast; the step support comprises a floor connecting part, a beam body part and a step connecting part; the floor connecting part is horizontally arranged, the step connecting part is used for connecting a step shield, and the beam body part is in transitional connection between the floor connecting part and the step connecting part;
the floor connecting part comprises a field-shaped frame and two L-shaped reinforcing ribs, the side end faces of the field-shaped frame are butted with the top end of the beam body part, and the side plates of the two L-shaped reinforcing ribs are symmetrically arranged on the two sides of the field-shaped frame; two ends of each L-shaped reinforcing rib are closed, and the top surface of each L-shaped reinforcing rib is provided with more than two connecting holes for butting the floor longitudinal beams of the vehicle; the step connecting part is provided with a plurality of connecting holes for butt joint of the step shield; the cross sections of the main body part of the step connection part and the main body part of the beam body part are symmetrical along the thickness direction.
On the basis of the technical scheme, the width of the field-shaped frame of the floor connecting part is equal to that of the beam body part, and a triangular plate is arranged between each L-shaped reinforcing rib and the beam body part.
On the basis of the technical scheme, the main body part of the beam body part comprises a straight line section in the middle and curved sections at two ends, and the main body part of the step connecting part is positioned in the middle of the thickness of the curved section at the lower part of the beam body part; the cross section of the main body part of the beam body part is in a transverse king shape; both body parts are provided with a number of lightening holes.
On the basis of the technical scheme, the beam body part further comprises a plurality of transverse reinforcing ribs, and the transverse reinforcing ribs are arranged on the main body part of the beam body part at equal intervals; each transverse reinforcing rib penetrates through the middle two cross connection plates of the main body part of the beam body, and the plane of each transverse reinforcing rib is perpendicular to the plane of the step connection part.
On the basis of the technical scheme, the step connection part comprises two wheel hub-like structures and a cross brace structure, wherein the two wheel hub-like structures are positioned at two ends of the cross brace structure, and the middle of the cross brace structure is connected with the beam body; and the centers of the two wheel hub-like structures are provided with a connecting hole.
On the basis of the technical scheme, the stepping support further comprises two horn mounting lugs facing the stepping connecting part, and the two horn mounting lugs are symmetrically arranged on two sides of the width direction of the beam body; at least one mounting hole is formed in each loudspeaker mounting lug.
The application also discloses a step assembly, which comprises a step shield, a step and the step support; the horizontal setting of marking time in the medial surface of marking time guard shield, the connecting portion fixed connection of marking time support is in the lateral surface of marking time guard shield, the floor connecting portion of marking time support is used for fixed connection car floor longeron.
On the basis of the technical scheme, the width of the field-shaped frame of the floor connecting part is equal to that of the beam body part, and each L-shaped reinforcing rib is connected with the beam body part through a triangular plate;
the main body part of the beam body part comprises a straight line section in the middle and bending sections at two ends, and the main body part of the stepping connecting part is positioned at the middle of the thickness of the lower bending section; the cross section of the main body part of the beam body part is in a transverse king shape.
On the basis of the technical scheme, the beam body part further comprises a plurality of transverse reinforcing ribs, and the transverse reinforcing ribs are arranged on the main body part of the beam body part at equal intervals; each transverse reinforcing rib penetrates through the middle two connecting plates of the main body part of the beam body, and the plane of each transverse reinforcing rib is perpendicular to the plane of the step connecting part;
the pedal connecting part comprises two wheel-like structures and a cross brace structure, the two wheel-like structures are positioned at two ends of the cross brace structure, and the middle of the cross brace structure is connected with the beam body; and the centers of the two wheel hub-like structures are provided with a connecting hole.
The application also discloses a casting mould which is used for casting the stepping support and comprises a main mould, a bottom mould and a core body, wherein the main mould, the bottom mould and the core body form a cavity with the shape consistent with that of the stepping support;
the step connecting part and the beam body part are formed by clamping a main die and a bottom die, the parting surface of the step connecting part is the thickness center of the main body part, and the parting surface of the beam body part is the thickness center of the main body part;
the main die and the bottom die are clamped at the position of the floor connecting part to form a simulation cavity; the core body is arranged in the simulation cavity to form a cavity of the floor connecting part.
The beneficial effects that technical scheme that this application provided brought include:
1. the utility model provides a support of marking time, field style of calligraphy frame and two L type strengthening ribs form the major structure of floor connecting portion, and many fretwork in the centre have both realized lightweight design, make structural strength reliable and stable again. The two sides of each L-shaped reinforcing rib are sealed by the unfilled corner rectangular plates, so that the structural strength of the floor connecting part is further enhanced. The cross sections of the main body part of the step connecting part and the main body part of the beam body part are symmetrical along the thickness direction, so that the step connecting part and the beam body part are convenient for middle split dies in the thickness direction, and the integral casting forming is convenient to realize.
According to the stepping support, the investment of a die is reduced, the equipment and labor cost are reduced, the stepping support is formed by welding or assembling compared with a traditional aluminum alloy stepping support, the stepping support is high in dimensional accuracy control, the processing procedure and the assembling procedure are simplified, the reliability of a product is improved, the processing cost and the assembling cost are reduced, and the strength is stable and reliable; the floor connecting part is formed by matching a field-shaped frame and two L-shaped reinforcing ribs, and the beam body part and the step connecting part are provided with a plurality of lightening holes, so that the lightweight design is realized, and the structural strength is stable and reliable; simultaneously, the cross section of the main part of connecting portion and the main part of roof beam body portion of marking time all is symmetrical along thickness direction, contains loudspeaker installation ear, floor connecting portion and the transition part of roof beam body portion, the roof beam body portion and the transition part of connecting portion of marking time, and the horizontal strengthening rib of roof beam body portion all satisfy integrated into one piece's structural condition, have taken into account simultaneously three aspect (lightweight, structural strength, integrative casting), design benefit, for traditional assembled type support of marking time, simplified processing procedure and equipment process, still make dimensional accuracy control simple high-efficient.
2. The utility model provides a support of marking time, the main part of roof beam body portion contains the straightway in the middle and the crooked section of interlude both sides, and the main part of marking time connecting portion is located the very middle of the crooked section thickness of lower part. The cross section of the main body part of the beam body part is transverse king-shaped. The cross section is the beam body main part of horizontal king style of calligraphy knot, along thickness direction symmetry, does benefit to the split mould shaping, further provides structural basis for integrated shaping. The main part of connecting portion and the main part of roof beam body portion all set up a plurality of lightening holes of marking time, have further realized the lightweight demand.
3. The stepping support comprises a main body part, a plurality of transverse reinforcing ribs and a plurality of support rods, wherein the transverse reinforcing ribs are arranged on the main body part of the main body part at equal intervals; the cross section of the main body part of the beam body part is in a transverse king shape, the cross section of the main body part of the beam body part in the transverse king shape is provided with two cross connection plates in the middle, and a plurality of transverse reinforcing ribs penetrate through the two cross connection plates in the middle of the main body part of the beam body part, so that the structural strength of the beam body part is further enhanced; meanwhile, the plane where each transverse reinforcing rib is located is perpendicular to the plane where the pedal connecting part is located, so that when the die is separated, the transverse reinforcing ribs can be integrally formed with the main body part of the beam body part and the pedal connecting part in a die separating mode, the influence on the main body part of the beam body part and the die separating mode of the pedal connecting part is avoided, the processing and forming efficiency is improved, and the processing and assembling cost is reduced.
4. According to the stepping support, the stepping connecting part comprises two wheel hub-like structures and a cross brace structure, the two wheel hub-like structures are positioned at two ends of the cross brace structure, and the middle of the cross brace structure is connected with the beam body; a connecting hole is formed in the center of each hub-like structure. The connecting part of the steps consisting of the two wheel hub-like structures and the cross brace structure increases the connecting contact area between the connecting part of the steps and the step shield, and improves the connecting stability; meanwhile, the hub-like structure is arranged, and the connecting hole is formed in the center of the hub-like structure, so that the light-weight design (the hub-like structure is provided with a plurality of lightening holes) and the connection strength (the hub-like structure is provided with a plurality of reinforcing ribs in a circumferential direction) can be guaranteed.
5. The casting mold directly clamps the main mold and the bottom mold to form corresponding cavities, and the floor connecting part cannot be directly formed by mold separation due to the direction, so that the main mold and the bottom mold are clamped at the position of the floor connecting part to form a simulation cavity, and then a core body is arranged in the simulation cavity to form the corresponding cavity of the floor connecting part; the core body is attached to the bottom die but separated from each other. In the actual production process, the main die is opened first, then the bottom die is opened, the stepping support with the core body is obtained, the core body and the floor connecting part form a whole structure, and then core pulling is carried out from the lower part, so that the required floor connecting part is obtained. The support structure design benefit of marking time of this application has both satisfied lightweight design demand, has satisfied the structural strength demand again, has still satisfied integrated into one piece demand.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a prior art bent-tube stepping bracket;
FIG. 2 is a schematic view of a prior art stamped steel plate type stepping bracket;
FIG. 3 is a schematic structural view of a stepping bracket according to an embodiment of the present disclosure;
FIG. 4 is a side view of FIG. 3;
FIG. 5 is a left side view of FIG. 4;
FIG. 6 is a bottom view of FIG. 4;
FIG. 7 is a cross-sectional view A-A of FIG. 6;
FIG. 8 is a cross-sectional view B-B of FIG. 4;
FIG. 9 is a schematic illustration of the installation of a stepping assembly provided in an embodiment of the present application;
reference numerals: 1. a floor connecting part; 2. a beam body portion; 21. transverse reinforcing ribs; 3. a step connection part; 4. a horn mounting ear; 11. a field-shaped frame; 12. l-shaped reinforcing ribs; 120. a corner-missing rectangular plate; 13. a triangle; 31. a hub-like structure; 32. a cross brace structure; 100. a stepping bracket; 200. a vehicle floor stringer; 300. a stepping shield.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
As shown in fig. 3, 4, 5 and 6, the present application discloses an embodiment of a stepping bracket, wherein the stepping bracket 100 is made of an aluminum alloy material and is integrally cast. The step support 100 includes a floor joint 1, a beam body 2, and a step joint 3; the floor connecting portion 1 is the level setting, and the connecting portion 3 of marking time is slightly inclined relative to vertical direction, and the connecting portion 3 of marking time is used for connecting the guard shield of marking time, and beam body portion 2 transitional coupling is between floor connecting portion 1 and connecting portion 3 of marking time. The floor joint 1, the beam body 2 and the step joint 3 form a continuous curved surface shape.
The floor connecting portion 1 comprises a field-shaped frame 11 and two L-shaped reinforcing ribs 12, wherein side end faces of the field-shaped frame 11 are in butt joint with the top end of the beam body 2, and side plates of the two L-shaped reinforcing ribs 12 are symmetrically arranged on two sides of the field-shaped frame 11. The field-shaped frame 11 and the two L-shaped reinforcing ribs 12 form a main body part of the floor connecting part 1, and the middle parts of the field-shaped frame are hollowed out, so that the light-weight design is realized, and the structural strength is stable and reliable. The two ends of each L-shaped reinforcing rib 12 are closed, and the structural strength of the floor connecting part 1 is further enhanced. The top surface of each L-shaped reinforcing rib 12 is provided with more than two connecting holes for butting the vehicle floor longitudinal beams 200; the step connection part 3 is provided with a plurality of connection holes for abutting the step shield 300. Preferably, both ends of each L-shaped reinforcing rib 12 are closed by a corner-missing rectangular plate 120.
The cross section of the main body portion of the step connection portion 3 and the main body portion of the beam body portion 2 are symmetrical in the thickness direction. The middle split die in the thickness direction is convenient for the step connecting part 3 and the beam body part 2, and the integral casting forming is convenient to realize.
According to the stepping support, the floor connecting part 1 is formed by matching the field-shaped frame 11 and the two L-shaped reinforcing ribs 12, so that the lightweight design is realized, and the structural strength is stable and reliable; meanwhile, the cross sections of the main body part of the step connecting part 3 and the main body part of the beam body part 2 are symmetrical along the thickness direction, and the structural condition of integral casting molding is also met; the utility model provides a support of marking time has taken into account three aspect (lightweight, structural strength, integrative casting) simultaneously, design benefit, for traditional assembled support of marking time, has simplified processing procedure and equipment process, still makes dimensional accuracy control simple high-efficient.
As shown in fig. 7 and 8, in one embodiment, the step support 100 includes a floor coupling portion 1, a beam body portion 2, and a step coupling portion 3; the floor connecting portion 1 is arranged horizontally, the step connecting portion 3 is slightly inclined relative to the vertical direction, and the beam body portion 2 is connected between the floor connecting portion 1 and the step connecting portion 3 in a transitional mode. The floor joint 1, the beam body 2 and the step joint 3 form a continuous curved surface shape. The two L-shaped reinforcing ribs 12 of the floor connecting part 1 are provided with connecting holes, and the stepping connecting part 3 is provided with a plurality of connecting holes. Further, the width of the field-shaped frame 11 of the floor connecting part 1 is equal to that of the beam body 2, two L-shaped reinforcing ribs 12 are symmetrically distributed on two sides of the beam body 2 in the width direction, and a triangular plate 13 is arranged between each L-shaped reinforcing rib 12 and the beam body 2. The triangular plates 13 are horizontally arranged, and the L-shaped reinforcing ribs 12 and the beam body 2 are connected together by the two triangular plates 13 which are symmetrically arranged along the width direction, so that the transition position structure of the L-shaped reinforcing ribs 12 and the beam body 2 is stable and reliable.
In one embodiment, the step support 100 includes a floor attachment portion 1, a beam body portion 2, and a step attachment portion 3; the floor connecting portion 1 is arranged horizontally, the step connecting portion 3 is slightly inclined relative to the vertical direction, and the beam body portion 2 is connected between the floor connecting portion 1 and the step connecting portion 3 in a transitional mode. The floor joint 1, the beam body 2 and the step joint 3 form a continuous curved surface shape. The two L-shaped reinforcing ribs 12 of the floor connecting part 1 are provided with connecting holes, and the stepping connecting part 3 is provided with a plurality of connecting holes. Further, the main body of the beam body 2 includes a straight line section in the middle and curved sections on both sides of the middle section, and the main body of the step connection 3 is located at the middle of the thickness of the lower curved section. The cross section of the main body part of the beam body part 2 is transverse king-shaped. The cross section is the beam body part 2 main part of horizontal king style of calligraphy knot, along thickness direction symmetry, does benefit to the split mould shaping, provides structural basis for integrated into one piece. The main body part of the step connecting part 3 and the main body part of the beam body part 2 are provided with a plurality of lightening holes, and the requirement of light weight is further met.
In one embodiment, the step support 100 includes a floor attachment portion 1, a beam body portion 2, and a step attachment portion 3; the floor connecting portion 1 is arranged horizontally, the step connecting portion 3 is slightly inclined relative to the vertical direction, and the beam body portion 2 is connected between the floor connecting portion 1 and the step connecting portion 3 in a transitional mode. The floor joint 1, the beam body 2 and the step joint 3 form a continuous curved surface shape. The two L-shaped reinforcing ribs 12 of the floor connecting part 1 are provided with connecting holes, and the stepping connecting part 3 is provided with a plurality of connecting holes. Further, the beam body 2 further comprises a plurality of transverse reinforcing ribs 21, and the transverse reinforcing ribs 21 are arranged on the main body part of the beam body 2 at equal intervals; each transverse reinforcing rib 21 penetrates through the middle two cross connection plates of the main body part of the beam body part 2, and the plane of each transverse reinforcing rib is perpendicular to the plane of the step connection part 3. The cross section of the main body part of the beam body part 2 is in a transverse king shape, the cross section of the main body part of the beam body part 2 in the transverse king shape is provided with two cross connection plates in the middle, and a plurality of transverse reinforcing ribs 21 penetrate through the two cross connection plates in the middle of the main body part of the beam body part 2, so that the structural strength of the beam body part 2 is further enhanced; meanwhile, the plane of each transverse reinforcing rib is perpendicular to the plane of the step connecting part 3, so that when the die is separated, the transverse reinforcing ribs can be integrally formed with the beam body main body part and the step connecting part 3 in a die separation mode, the influence on the die separation of the beam body main body part and the step connecting part 3 is avoided, the processing and forming efficiency is improved, and the processing and assembling cost is reduced.
In one embodiment, the step support 100 includes a floor attachment portion 1, a beam body portion 2, and a step attachment portion 3; the floor connecting portion 1 is arranged horizontally, the step connecting portion 3 is slightly inclined relative to the vertical direction, and the beam body portion 2 is connected between the floor connecting portion 1 and the step connecting portion 3 in a transitional mode. The floor joint 1, the beam body 2 and the step joint 3 form a continuous curved surface shape. The two L-shaped reinforcing ribs 12 of the floor connecting part 1 are provided with connecting holes, and the stepping connecting part 3 is provided with a plurality of connecting holes. The step connecting part 3 comprises two wheel-like structures 31 and a cross brace structure 32, the two wheel-like structures 31 are positioned at two ends of the cross brace structure 32, and the middle of the cross brace structure 32 is connected with the beam body part 2; a connecting hole is formed in the center of each of the two hub-like structures 31. The step connecting part 3 formed by the two wheel hub-like structures 31 and the cross brace structure 32 increases the connecting contact area between the step connecting part 3 and the step shield 300, and improves the connecting stability; meanwhile, the hub-like structure 31 is arranged, and the connecting hole is formed in the center of the hub-like structure 31, so that the light-weight design (the hub-like structure 31 is provided with a plurality of lightening holes) and the connection strength (the hub-like structure 31 is provided with a plurality of reinforcing ribs in a circumferential direction) can be guaranteed.
In one embodiment, the step support 100 includes a floor attachment portion 1, a beam body portion 2, and a step attachment portion 3; the floor connecting portion 1 is arranged horizontally, the step connecting portion 3 is slightly inclined relative to the vertical direction, and the beam body portion 2 is connected between the floor connecting portion 1 and the step connecting portion 3 in a transitional mode. The floor joint 1, the beam body 2 and the step joint 3 form a continuous curved surface shape. The two L-shaped reinforcing ribs 12 of the floor connecting part 1 are provided with connecting holes, and the stepping connecting part 3 is provided with a plurality of connecting holes. The step support 100 further comprises two horn mounting lugs 4 facing the step connection part 3, and the two horn mounting lugs 4 are symmetrically arranged at two sides of the width direction of the main body part of the beam body part 2; at least one mounting hole is formed in each horn mounting ear 4. The loudspeaker mounting lug 4 is used for mounting a vehicle loudspeaker, and the pedal support of the application integrates the loudspeaker mounting lug 4 on the pedal support 100, so that the number of vehicle parts is reduced, and the processing cost is reduced.
As shown in fig. 9, an embodiment of a stepping assembly is disclosed herein that includes a stepping shield 300, a stepping and the stepping bracket 100 described above. The horizontal setting of marking time is in the medial surface of marking time guard 300, and the connecting portion 3 fixed connection of marking time support 100 is in the lateral surface of marking time guard 300, and the floor connecting portion 1 of marking time support 100 is used for fixed connection car floor longeron 200.
In one embodiment, the step assembly comprises a step guard 300, a step and a step support 100, the step is horizontally arranged on the inner side surface of the step guard 300, a step connection part 3 of the step support 100 is fixedly connected on the outer side surface of the step guard 300, and a floor connection part 1 of the step support 100 is used for fixedly connecting the car floor longitudinal beam 200. The width of the field-shaped frame 11 of the floor connecting part 1 is equal to that of the beam body part 2, two L-shaped reinforcing ribs 12 are symmetrically distributed on two sides of the beam body part 2 in the width direction, and a horizontal triangular plate 13 is arranged between each L-shaped reinforcing rib 12 and the beam body part 2. Two triangular plates 13 symmetrically arranged along the width direction connect the L-shaped reinforcing ribs 12 with the beam body 2, so that the transition position structure of the L-shaped reinforcing ribs 12 and the beam body 2 is stable and reliable.
Further, the main body of the beam body 2 includes a straight line section in the middle and curved sections on both sides of the middle section, and the main body of the step connection 3 is located at the middle of the thickness of the lower curved section. The cross section of the main body part of the beam body part 2 is transverse king-shaped. The cross section is the beam body main part of horizontal king style of calligraphy knot, along thickness direction symmetry, does benefit to the split mould shaping, provides structural basis for integrated into one piece. The main body part of the step connecting part 3 and the main body part of the beam body part 2 are provided with a plurality of lightening holes, and the requirement of light weight is further met.
In one embodiment, the step assembly comprises a step guard 300, a step and a step support 100, the step is horizontally arranged on the inner side surface of the step guard 300, a step connection part 3 of the step support 100 is fixedly connected on the outer side surface of the step guard 300, and a floor connection part 1 of the step support 100 is used for fixedly connecting the car floor longitudinal beam 200. Further, the beam body 2 further comprises a plurality of transverse reinforcing ribs 21, and the transverse reinforcing ribs 21 are arranged on the main body part of the beam body 2 at equal intervals; each transverse reinforcing rib 21 penetrates through the middle two cross connection plates of the main body part of the beam body part 2, and the plane of each transverse reinforcing rib is perpendicular to the plane of the step connection part 3. The cross section of the main body part of the beam body part 2 is in a transverse king shape, the cross section of the main body part of the beam body part 2 in the transverse king shape is provided with two cross connection plates in the middle, and a plurality of transverse reinforcing ribs 21 penetrate through the two cross connection plates in the middle of the main body part of the beam body part 2, so that the structural strength of the beam body part 2 is further enhanced; meanwhile, the plane of each transverse reinforcing rib is perpendicular to the plane of the step connecting part 3, so that when the die is separated, the transverse reinforcing ribs can be integrally formed with the main body part of the beam body part 2 and the step connecting part 3 in a die separation mode, the influence on the die separation of the main body part of the beam body part and the step connecting part 3 is avoided, the processing and forming efficiency is improved, and the processing and assembling cost is reduced.
The present application also discloses a casting mold embodiment for casting the above-described step support 100, the casting mold comprising a main mold, a bottom mold and a core, the main mold, the bottom mold and the core forming a cavity having a shape consistent with the step support 100. The step connecting part 3 and the beam body part 2 are formed by clamping a main die and a bottom die, the parting surface of the step connecting part 3 is the thickness center of the main body part, and the parting surface of the beam body part 2 is the thickness center of the main body part. The main die and the bottom die are clamped at the position of the floor connecting part 1 to form a simulation cavity; the core is arranged in the simulation cavity to form a cavity of the floor connecting part 1.
The main part of the beam body 2 and the main part of the step connecting part 3 are symmetrical structures in the thickness direction, corresponding cavities are formed by clamping the main die and the bottom die directly, and the floor connecting part cannot be formed by directly parting the dies due to the direction, so that the main die and the bottom die are clamped at the position of the floor connecting part 1 to form a simulation cavity, and then a core is arranged in the simulation cavity to form the corresponding cavity of the floor connecting part 1. The core body is attached to the bottom die but separated from each other.
In the actual production process, the main mold is opened first, then the bottom mold is opened, the stepping bracket 100 with the core body is obtained, the core body and the floor connecting part 1 form a whole structure, and then core pulling is carried out from the lower part, so that the required floor connecting part 1 is obtained. The mark time support 100 structural design of this application ingenious, both satisfied lightweight design demand, satisfied the structural strength demand again, still satisfied integrated into one piece demand.
Further, the width of the field-shaped frame 11 of the floor connecting part 1 is equal to that of the beam body 2, two L-shaped reinforcing ribs 12 are symmetrically distributed on two sides of the beam body 2 in the width direction, and a horizontal triangular plate 13 is arranged between each L-shaped reinforcing rib 12 and the beam body 2. Two triangular plates 13 symmetrically arranged along the width direction connect the L-shaped reinforcing ribs 12 with the beam body 2, so that the transition position structure of the L-shaped reinforcing ribs 12 and the beam body 2 is stable and reliable. The casting die of the utility model obtains the floor connecting part 1 with the field-shaped frame 11 and the L-shaped reinforcing ribs 12 through loose core, and the processing is simple and efficient.
In one embodiment, the main body portion of the beam body 2 includes a straight middle section and curved sections on either side of the middle section, and the main body portion of the step connection 3 is located in the middle of the thickness of the lower curved section. The cross section of the main body part of the beam body part 2 is transverse king-shaped. The cross section is the beam body main part of horizontal king style of calligraphy knot, along thickness direction symmetry, does benefit to the split mould shaping, provides structural basis for integrated into one piece. The main body part of the step connecting part 3 and the main body part of the beam body are provided with a plurality of lightening holes, so that the requirement of lightening is further met.
In one embodiment, the beam body 2 further comprises a plurality of transverse reinforcing ribs 21, and the transverse reinforcing ribs 21 are arranged on the main body part of the beam body 2 at equal intervals; each transverse reinforcing rib 21 penetrates through the middle two cross connection plates of the main body part of the beam body part 2, and the plane of each transverse reinforcing rib is perpendicular to the plane of the step connection part 3. The cross section of the main body part of the beam body part 2 is in a transverse king shape, the cross section is in a transverse king shape, two cross connection plates are arranged in the middle of the main body part of the beam body part, and a plurality of transverse reinforcing ribs 21 penetrate through the two cross connection plates in the middle of the main body part of the beam body part, so that the structural strength of the beam body part 2 is further enhanced; meanwhile, the plane of each transverse reinforcing rib is perpendicular to the plane of the step connecting part 3, so that the transverse reinforcing ribs and the beam body main body part and the step connecting part 3 can be integrally molded in a split mode.
Further, the step connection part 3 comprises two wheel-like structures 31 and a cross brace structure 32, the two wheel-like structures 31 are positioned at two ends of the cross brace structure 32, and the middle of the cross brace structure 32 is connected with the beam body 2; a connecting hole is formed in the center of each of the two hub-like structures 31. The step connecting part 3 formed by the two wheel hub-like structures 31 and the cross brace structure 32 increases the connecting contact area between the step connecting part 3 and the step shield 300, and improves the connecting stability; meanwhile, the hub-like structure 31 is arranged, and the connecting hole is formed in the center of the hub-like structure 31, so that the light-weight design (the hub-like structure 31 is provided with a plurality of lightening holes) and the connection strength (the hub-like structure 31 is provided with a plurality of reinforcing ribs in a circumferential direction) can be guaranteed. In the casting mold of the present application, the main mold and the bottom mold are directly clamped to form the step connection portion 3.
The step support 100 further comprises two horn mounting lugs 4 facing the step connection part 3, and the two horn mounting lugs 4 are symmetrically arranged at two sides of the width direction of the main body part of the beam body part 2; at least one mounting hole is formed in each horn mounting ear 4. The horn mounting ears 4 integrate the horn mounting locations onto the step support 100, reducing the number of vehicle parts and reducing machining costs. The casting mould of this application, the direct clamp of master mould and die block forms loudspeaker mounting lug 4.
In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description of the present application and simplification of the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
It should be noted that in this application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A support of marking time which characterized in that: the stepping bracket (100) is made of an aluminum alloy material and is integrally cast; the stepping bracket (100) comprises a floor connecting part (1), a beam body part (2) and a stepping connecting part (3); the floor connecting part (1) is horizontally arranged, the step connecting part (3) is used for connecting a step shield, and the beam body part (2) is in transitional connection between the floor connecting part (1) and the step connecting part (3);
the floor connecting part (1) comprises a field-shaped frame (11) and two L-shaped reinforcing ribs (12), the side end faces of the field-shaped frame (11) are in butt joint with the top end of the beam body part (2), and the side plates of the two L-shaped reinforcing ribs (12) are symmetrically arranged on two sides of the field-shaped frame (11); two ends of each L-shaped reinforcing rib (12) are closed, and the top surface of each L-shaped reinforcing rib (12) is provided with more than two connecting holes for butting the floor longitudinal beams of the vehicle; the step connecting part (3) is provided with a plurality of connecting holes for butt joint of the step shield;
the cross sections of the main body part of the step connecting part (3) and the main body part of the beam body part (2) are symmetrical along the thickness direction;
the main body part of the beam body part (2) comprises a straight line section in the middle and bending sections at two ends, and the main body part of the step connecting part (3) is positioned in the middle of the thickness of the bending section at the lower part of the beam body part (2); the cross section of the main body part of the beam body part (2) is in a transverse king shape; the two main body parts are provided with a plurality of lightening holes;
the beam body part (2) further comprises a plurality of transverse reinforcing ribs (21), and the transverse reinforcing ribs (21) are arranged on the main body part of the beam body part (2) at equal intervals; each transverse reinforcing rib (21) penetrates through the middle two cross connection plates of the main body part of the beam body part (2), and the plane of each transverse reinforcing rib is perpendicular to the plane of the step connection part (3).
2. A stepping support as claimed in claim 1, wherein: the width of the field-shaped frame (11) of the floor connecting part (1) is equal to the width of the beam body part (2), and a triangular plate (13) is arranged between each L-shaped reinforcing rib (12) and the beam body part (2).
3. A stepping support as claimed in claim 1, wherein: the pedal connecting part (3) comprises two wheel-like structures (31) and a cross brace structure (32), the two wheel-like structures (31) are positioned at two ends of the cross brace structure (32), and the middle of the cross brace structure (32) is connected with the beam body (2); and the centers of the two hub-like structures (31) are provided with a connecting hole.
4. A stepping support as claimed in claim 1, wherein: the stepping bracket (100) further comprises two horn mounting lugs (4) facing the stepping connecting portion (3), and the two horn mounting lugs (4) are symmetrically arranged on two sides of the beam body portion (2) in the width direction; at least one mounting hole is formed in each loudspeaker mounting lug (4).
5. A step assembly, characterized in that: the step assembly comprising a step guard (300), a step, and a step support (100) of claim 1; the horizontal setting of marking time in the medial surface of marking time guard shield (300), the connecting portion (3) of marking time support (100) fixedly connected with the lateral surface of marking time guard shield (300), the floor connecting portion (1) of marking time support (100) are used for fixed connection car floor longeron (200).
6. A stepping assembly according to claim 5, wherein: the width of the field-shaped frame (11) of the floor connecting part (1) is equal to that of the beam body part (2), and each L-shaped reinforcing rib (12) is connected with the beam body part (2) through a triangular plate (13).
7. A stepping assembly according to claim 6, wherein: the pedal connecting part (3) comprises two wheel-like structures (31) and a cross brace structure (32), the two wheel-like structures (31) are positioned at two ends of the cross brace structure (32), and the middle of the cross brace structure (32) is connected with the beam body (2); and the centers of the two hub-like structures (31) are provided with a connecting hole.
8. A casting mold, characterized in that: for casting a step support (100) according to claim 1, the casting mould comprising a main mould, a bottom mould and a core forming a cavity of shape conforming to the step support (100);
the step connecting part (3) and the beam body part (2) are formed by clamping a main die and a bottom die, the parting surface of the step connecting part (3) is the thickness center of the main body part, and the parting surface of the beam body part (2) is the thickness center of the main body part;
the main die and the bottom die are clamped at the position of the floor connecting part (1) to form a simulation cavity; the core body is arranged in the simulation cavity to form a cavity of the floor connecting part (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111449188.4A CN113954752B (en) | 2021-11-30 | 2021-11-30 | Support, assembly and casting mould step |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111449188.4A CN113954752B (en) | 2021-11-30 | 2021-11-30 | Support, assembly and casting mould step |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113954752A CN113954752A (en) | 2022-01-21 |
| CN113954752B true CN113954752B (en) | 2023-05-30 |
Family
ID=79472597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111449188.4A Active CN113954752B (en) | 2021-11-30 | 2021-11-30 | Support, assembly and casting mould step |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113954752B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000085505A (en) * | 1998-09-07 | 2000-03-28 | Mazda Motor Corp | Supporting structure of side step |
| JP2002321657A (en) * | 2001-04-27 | 2002-11-05 | Nissan Motor Co Ltd | Body floor structure of automobile |
| CN104554033A (en) * | 2014-11-30 | 2015-04-29 | 山西华纳机械加工有限公司 | Split combined off-road vehicle pedal |
| CN107310481A (en) * | 2017-06-09 | 2017-11-03 | 奇瑞汽车股份有限公司 | A kind of automobile side pedal fixed structure |
| CN206691018U (en) * | 2017-05-04 | 2017-12-01 | 安徽江淮汽车集团股份有限公司 | A kind of two level tread structure |
| CN206884895U (en) * | 2017-06-19 | 2018-01-16 | 郑州宇通客车股份有限公司 | Car and its support of marking time |
| CN108638971A (en) * | 2018-04-18 | 2018-10-12 | 奇瑞汽车股份有限公司 | A kind of automobile side pedal mounting structure |
| CN211248207U (en) * | 2019-12-03 | 2020-08-14 | 广州市型腔模具制造有限公司 | Step die of integrated into one piece through-hole |
| CN211468317U (en) * | 2019-11-20 | 2020-09-11 | 广州广汽商贸长和汽车科技有限公司 | Automobile pedal support |
| DE102019126356A1 (en) * | 2019-09-30 | 2021-04-01 | Bombardier Transportation Gmbh | ENTRANCE SYSTEM FOR A DOOR AREA OF A PASSENGER TRANSPORT VEHICLE AND PASSENGER TRANSPORT VEHICLE |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8985606B2 (en) * | 2011-03-09 | 2015-03-24 | Thomas Fichter | Moveable step for assisting entry into vehicles |
-
2021
- 2021-11-30 CN CN202111449188.4A patent/CN113954752B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000085505A (en) * | 1998-09-07 | 2000-03-28 | Mazda Motor Corp | Supporting structure of side step |
| JP2002321657A (en) * | 2001-04-27 | 2002-11-05 | Nissan Motor Co Ltd | Body floor structure of automobile |
| CN104554033A (en) * | 2014-11-30 | 2015-04-29 | 山西华纳机械加工有限公司 | Split combined off-road vehicle pedal |
| CN206691018U (en) * | 2017-05-04 | 2017-12-01 | 安徽江淮汽车集团股份有限公司 | A kind of two level tread structure |
| CN107310481A (en) * | 2017-06-09 | 2017-11-03 | 奇瑞汽车股份有限公司 | A kind of automobile side pedal fixed structure |
| CN206884895U (en) * | 2017-06-19 | 2018-01-16 | 郑州宇通客车股份有限公司 | Car and its support of marking time |
| CN108638971A (en) * | 2018-04-18 | 2018-10-12 | 奇瑞汽车股份有限公司 | A kind of automobile side pedal mounting structure |
| DE102019126356A1 (en) * | 2019-09-30 | 2021-04-01 | Bombardier Transportation Gmbh | ENTRANCE SYSTEM FOR A DOOR AREA OF A PASSENGER TRANSPORT VEHICLE AND PASSENGER TRANSPORT VEHICLE |
| CN211468317U (en) * | 2019-11-20 | 2020-09-11 | 广州广汽商贸长和汽车科技有限公司 | Automobile pedal support |
| CN211248207U (en) * | 2019-12-03 | 2020-08-14 | 广州市型腔模具制造有限公司 | Step die of integrated into one piece through-hole |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113954752A (en) | 2022-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113954752B (en) | Support, assembly and casting mould step | |
| CN112599915B (en) | Box structure under square battery | |
| JP2022108320A (en) | suspension member | |
| CN218462489U (en) | Precast beam mould | |
| CN217835795U (en) | Assembly connection structure of automobile floor beam | |
| CN217099975U (en) | Aluminum alloy curved side wall of urban rail vehicle | |
| JPH0999870A (en) | Floor structure for automobile | |
| CN221068238U (en) | Automobile body floor assembly and vehicle | |
| CN215971767U (en) | Front end skeleton assembly | |
| CN218967047U (en) | Commercial truck side split air guide sleeve assembly | |
| CN214823683U (en) | Rear suspension bracket of vehicle frame | |
| CN221214395U (en) | Side beam structure and tricycle frame | |
| CN109334697B (en) | Ring-shaped sleeper beam and straddle type monorail vehicle | |
| CN115432077B (en) | Vehicle body and unmanned commercial vehicle | |
| CN219007935U (en) | Commercial vehicle frame cast aluminum ingot beam support | |
| CN217347961U (en) | Trade electric car sub vehicle frame, trade electric car and trade electric system | |
| CN214562913U (en) | Corrugated shell plate for large shell winding core mold | |
| CN217022145U (en) | Vehicle body side door structure | |
| CN217294664U (en) | New energy automobile lightweight collision energy-absorbing aluminum alloy sub vehicle frame | |
| CN220682485U (en) | D-pillar upper joint inner plate structure | |
| CN113478860B (en) | Composite material train body structure and forming method thereof | |
| CN221114089U (en) | Thin-wall cavity supporting structure and vehicle | |
| CN218367367U (en) | Quick-change support and electric automobile quick-change assembly | |
| CN217861879U (en) | Full-aluminum wall mold | |
| CN216424400U (en) | Train carbon fiber vehicle body structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |