CN112900539A - Loader cab layout method based on human-machine engineering and cab - Google Patents
Loader cab layout method based on human-machine engineering and cab Download PDFInfo
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- CN112900539A CN112900539A CN202110086651.7A CN202110086651A CN112900539A CN 112900539 A CN112900539 A CN 112900539A CN 202110086651 A CN202110086651 A CN 202110086651A CN 112900539 A CN112900539 A CN 112900539A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/16—Cabins, platforms, or the like, for drivers
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- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
Abstract
The invention discloses a loader cab layout method based on human-machine engineering and a cab, which comprises the following steps of 1: determining the overall dimension of a universal component of a cab; step 2: determining a driving posture and a design position of a driver; and step 3: determining the position of a steering wheel and the adjusting range of a steering wheel adjusting mechanism; and 4, step 4: the position of the handle, the central point of the adjusting mechanism and the adjusting range are determined. The cab designed according to the method meets the scientific and reasonable design stroke and the man-machine control comfort of the control device, and meanwhile realizes scientific and accurate adjustment stroke of the control device and universalization of related carrier molds under the requirements of compact space, dynamic size and layout of the control devices of various types of series loaders. The problems of poor compatibility, excessive stroke design and poor universality of a control part forming die in the prior art are solved.
Description
Technical Field
The invention relates to a loader cab layout method based on human-machine engineering and a cab, and belongs to the technical field of engineering machinery.
Background
The research and development investment of the loader cab is work with high cost and slow profit and time, and the key and difficult point of design is how to design the cab with high man-machine comfort, comfortable operation of operating parts, strong universality and low cost. The operating device of the loader cab is generally directly selected in the market, and because the positions operated by drivers with different sizes are generally different, the adjusting stroke of the operating device cannot meet the operating comfort requirements of the drivers with different sizes. The research on how to scientifically calculate the adjusting stroke and the position of the operating device of the loader is less, the space waste of a cab is serious in order to avoid that the design stroke is not enough and the design stroke is often over-designed on the stroke quantity, the comfortable driving experience of a driver is influenced for the compact cab of the loader, and the design cost of related structural parts is greatly improved.
Meanwhile, the loader cab is sensitive to cost requirements generally, and the main operating devices of different series of cabs are various, for example, the handle is divided into a floor rod and an operating handle, the structure of the operating handle is divided into a mechanical type and an electric control type, and the size difference is large; the size of the steering wheel instrument is also larger and larger along with the upgrade of the tonnage of the loader. Therefore, the problems to be solved currently are how to design the mold of the operating device for generalization, minimize the size and the design stroke, and maximize the utilization of the cab space.
Disclosure of Invention
In order to solve the defects of the prior art, the invention aims to provide a loader cab layout method based on human-machine engineering and a cab, and solves the problems of poor compatibility, excessive stroke design and poor universality of a control part forming die in the prior art.
In order to achieve the above object, the present invention adopts the following technical solutions:
the loader cab layout method based on the human-machine engineering comprises the following steps:
determining the overall dimension of a universal component of a cab;
determining a driving posture and a design position of a driver;
determining the position of a steering wheel and the adjusting range of a steering wheel adjusting mechanism;
the position of the handle, the central point of the adjusting mechanism and the adjusting range are determined.
As a preferred aspect of the present invention, in the above-mentioned ergonomic loader cab layout method, the specific operation of determining the external dimensions of the cab-generalized components is as follows:
determining the contour dimension range and the key number requirements of the handrail box of the series loader according to the contour dimension of the handrail box of the series loader, and determining the key module size of each type of loader;
collecting and numbering handle models and operating lever models of a series loader, selecting the maximum size of a handle mounting surface and the maximum base size of a handle as design input to construct the handle mounting surface and the mounting base size, and determining the space size of a handle module by considering an assembly gap;
counting the number and the sizes of keys of series of loader interiors, selecting a target machine type as key input of a cab interior design, determining the arrangement positions of the keys in the cab and the size of a key plate in the armrest box, and determining an armrest box design strategy according to the space size requirement of a handle module;
and finally determining the handrail box dividing module according to the operation type of the operating rod 6 and the handle 2 and the maximum number and size of keys.
As a preferred scheme of the present invention, in the above loader cab layout method based on the ergonomic engineering, a model with the largest key occupation area is selected as a key input for cab interior design.
As a preferred aspect of the present invention, the operation of determining the driving posture and the design position of the driver is as follows:
taking a 5-percentile human body model as follows: p5=1550mm, the 50 percentile mannequin is: p50=1730mm, 95 percentile mannequin: p95=1910mm, three-dimensional modeling is carried out on a loader cab and a loader complete machine model;
inputting the size and the model of a model selecting steering wheel 9 in a cab, inputting the positions of a series of display screen combination instruments 10 and a steering wheel column 11 base as basic data constraint conditions, and selecting the instrument with the largest size as a design and check instrument 10;
inputting the front and rear strokes and the up and down strokes of the model selection seat 7;
and verifying whether the driving space and the head space of the P95 human body model meet the design requirements under the driving posture, entering the next step on the premise of meeting the vision field requirement and the head space, and otherwise, adjusting the parameters of the trunk angle to meet the safety clearance requirement of the head envelope R3.
As a preferred embodiment of the present invention, in the above-mentioned method for arranging a loader cab based on ergonomic engineering, three-dimensional modeling is performed on the loader cab and a model of the whole loader through three-dimensional software.
As a preferred aspect of the present invention, in the above-mentioned ergonomic loader cab layout method, the specific operations of determining the steering wheel position and the adjustment range of the steering wheel adjustment mechanism are as follows:
an included angle A between the tangent line from the center point R8 of the eye ellipse to the display instrument and the display screen instrument1On the premise of vertical arrangement, the inclination angle A is adjusted according to the recommended range angle of the steering wheel2；
Extraction of shoulder joint R2And elbow joint R4The angle range and the position data of the hand-holding device are combined with the leg space requirements to determine the comprehensive hand-holding and comfortable operation areas 8 of different percentile persons, and the center point of a steering wheel and the center point R of a 95 percentile palm0Matching, adjusting the angle between the instrument and the steering wheel, and ensuring that the view of the instrument is not blocked;
determining steering wheel position M1Determining the downward adjusting range of the steering wheel in the state;
according to the three positions of the steering wheel determined: initial position M2Design position M1Final position M3Checking the poles and legs R7The safety clearance of (2) determines the size constraint of the embracing column and refines the design of the output model.
As a preferred aspect of the present invention, the above-described ergonomic loader cabLayout method of determining steering wheel position M1The safety clearance requirement of the steering wheel and the leg and the stomach space requirement of the 5-percentile human body model are met, and the downward adjusting range of the steering wheel in the state is determined.
As a preferred aspect of the present invention, in the above-mentioned ergonomic loader cab layout method, the specific operations of determining the handle position, the adjustment mechanism center point and the adjustment range are as follows:
determining palm center point R0Position K attached to handle5、K50、K95；
The handle 2 is enveloped in motion and matched with the palm center point R0Position K attached to handle5、K50、K95Checking the motion envelope and the safety clearance in the adjusting stroke of the steering wheel 9, entering the next step if the safety clearance requirement is met, and otherwise, adjusting the Y-direction position of the handle to meet the safety clearance requirement;
according to K5，K50，K95Determining the center point K of the handle adjusting mechanism0And the adjustment range A4And calculating the X-direction and Z-direction adjusting strokes of the elbow rest 3 according to the position of the handle and the hand operation positions of three percentile persons.
As a preferred embodiment of the present invention, the loader cab layout method based on the ergonomic design is based on the positions of the three percentile mannequins H and the torso angle a40Determining P95、P50、P5Shoulder joint center point R2Position, in combination with wrist R5And elbow R6Determining the angle and the size of the comfortable joint and determining the central point R of the palm0Position K attached to handle5、K50、K95；
A cab is designed by adopting the loader cab layout method based on the human-machine engineering.
The invention achieves the following beneficial effects:
1. the loader cab layout method based on the human-machine engineering disclosed by the invention has clear logic and is simple and convenient, and by adopting the method to guide the design work, the design steps can be simplified, the material waste in the design process can be reduced, and the design period can be shortened.
2. The cab disclosed by the invention meets the scientific and reasonable design stroke and the man-machine operation comfort of the operation device under the condition of dynamic change of the positions of drivers with different statures, and realizes scientific and accurate adjustment stroke of the operation device and universalization of related carrier molds under the requirements of compact space, dynamic size and layout of the operation devices of various types of series loaders, thereby effectively reducing the manufacturing cost, improving the man-machine comfort and simultaneously improving the utilization rate of the molds.
Drawings
FIG. 1 is a flow chart of a loader cab ergonomic design provided by the present invention;
FIG. 2 is a loader cab interior applied to the cab design method provided by the present invention;
fig. 3 is a handle-type console box on a high-rigging loader applied in an embodiment of the invention;
FIG. 4 is a console box on a low profile loader used in an embodiment of the present invention;
FIG. 5 is a simplified schematic of a human body;
FIG. 6 is a diagram illustrating a position relationship of a steering wheel of the meter in accordance with an embodiment of the present invention;
FIG. 7 is a diagram of a steering wheel position relationship in an embodiment of the present invention;
FIG. 8 is a diagram showing the positional relationship of the handle in the embodiment of the present invention.
The meaning of the reference symbols in the figures: 1-a functional handle; 2-a handle; 3-elbow rest; 4-armrest box module a; 5-armrest box module B; 6-a floor operating rod; 7-a seat; 8-stretching and thinning the area by hand; 9-a steering wheel; 10-a meter; 11-embracing columns; 12-pedaling; 13-front wall; 14-sudden stop; 15-key press; 16-storage function; 17-rear wall; h-point H of the human body; h30-height of human body H point to floor; r0-a human palm centre point; r1-an eye ellipse; r2-a shoulder joint centre point; r3-a head envelope; r4-an elbow joint centre point; r5-a wrist joint; r6-an elbow joint; r7-a lower leg; r8-an eye ellipse centre point; m0-embracing the armAdjusting a central point of the column steering mechanism; m1-a steering wheel upper surface gripping centre point; m2-steering wheel centre point initial position; m3-the lowest position of the centre point of the steering wheel; a. the1-the angle between the tangent to the display instrument from the centre point of the eye ellipse and the display screen; a. the2-a steering wheel angle; a. the3-the column embracing mechanism adjusts the stroke angle; a. the4-a handle adjustment angle; a. the40-a torso angle; k0-a handle adjustment mechanism centre point; k5-5 percentile palm grip center point; k50-a 50 percentile palm grip center point; k95-95 percentile palm grip center point.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The specific content of the invention as shown in fig. 1 comprises four steps: determining the external dimension of the cab generalized component; determining a driving posture and a design position of a driver; determining the position of a steering wheel and the adjusting range of a steering wheel adjusting mechanism; and determining the position of the handle, the central point of the handle adjusting mechanism and the adjusting range.
(1) And determining the external dimension of the cab generalized component.
In the early stage of cab design, the design size of the universal component is determined, the cab size can be accurately constrained, and the phenomena that personnel cost is increased and die cost is increased due to the fact that a part model is repeatedly modified for consideration of a system type in the design process of the cab are avoided. The stage is as follows: the method comprises the steps of collecting a model and data of a cab of the universal loader, and determining the overall dimensions of universal parts of the cab according to the characteristics of installation dimensions, structural dimensions, operation forms and the like of different operating devices, wherein the universal parts mainly comprise a handle, an operating lever, a key, a handrail box and the like. The method comprises the following specific steps:
1) according to the contour dimension of the armrest box of the series loader, the contour dimension range and the key number requirements of the armrest box of the series loader are determined, and the key module dimension of each type of loader is determined.
2) The handle models and the joystick models of the series loader are collected and numbered, the largest size of the handle mounting surface is selected as the design input, and the largest base size of the handle can be determined as the design input. The design input dimensions of the handle mounting surface and the mounting base are drawn by three-dimensional software, and the spatial dimension of the handle module is determined by considering the assembly clearance.
3) Counting the number and the sizes of keys of series loader interiors, selecting the model with the largest key occupation area as the key input of the interior design of the cab, determining the arrangement positions of the keys in the cab and the sizes of key plates in the armrest box, and determining the armrest box design strategy according to the space size requirement of the handle module.
4) According to the operation type of the operating rod 6 and the handle 2 and the maximum number and size of keys, the handrail box is finally determined to be divided into two modules, namely a module A and a module B, as shown in figures 2 and 3, the module A comprises the components of the handle 2, the functional auxiliary handle 1 and the adjustable elbow rest 3, and the module B comprises the key panel 15, the storage device, the emergency stop device 14 and the like. The high-matching loader cab armrest box module consists of an A module 4 and a B module 5, the low-matching loader cab module consists of a floor operating rod 6 and the B module 5, the whole style of the cab is consistent, two sets of armrest box molds can realize the universality of series loader cabs, and the cab cost is greatly reduced.
(2) And determining the driving posture and the design position of the driver.
In the early stage of the arrangement and design of the cab, the determination of the driving posture and the design position of a driver is the premise and the basis of the whole cab ergonomic design. The stage is as follows: and establishing a cab base model and a human body model, and matching a human body, a seat, a cab and a designed loader complete machine on the basis of considering factors such as cab space, visual field and the like. The method comprises the following specific steps:
1) taking a 5-percentile human body model as follows: p5=1550mm, the 50 percentile mannequin is: p50=1730mm, 95 percentile mannequin: p95=1910mm, and a simplified human body schematic diagram is shown in fig. 4. Three-dimensional modeling for loader cab and loader complete machine modelThe three-dimensional modeling can be realized by using three-dimensional modeling software, and a loader cab model is shown in fig. 5.
2) Inputting the size and the model of a model selecting steering wheel 9 in a cab, inputting the positions of a series display screen combination instrument 10 and a steering wheel column 11 base as basic data constraint conditions, and selecting the instrument with the largest size as a design and check instrument 10.
3) The forward and backward stroke and the upward and downward stroke of the model selection seat 7 are inputted. According to the limit design method, the final stroke of the seat is adjusted to be matched with P95Human H point guarantees that the spatial distance of seat structure spare and back surrounding frame 17 satisfies the safety clearance requirement, guarantees simultaneously that pedal 12 position and operation satisfy pedal and preceding empty distance requirement of enclosing.
4) Design P by limit design5The human body model is arranged at the foremost and upmost end of the seat 7 and is designed with P50The middle position of the upper stroke and the lower stroke and the front stroke and the rear stroke of the human body model on the seat is designed with P95The manikin is at the lowermost end of the travel of the seat 7. According to the visual field requirement and the eye ellipse R1The calculation method determines P95Height H of seat30And the inclination angle A of the backrest of three percentile persons40Calculating the center point R of the eye ellipse8And (4) coordinates. Verification P95Whether the driving space and the head space of the human body model meet the design requirements or not under the driving posture of the human body model enters the next step on the premise of meeting the visual field requirement and the head space, otherwise, the trunk angle parameter is adjusted to meet the head envelope R3Safety clearance requirements.
(3) Determining steering wheel position and adjustment range of steering wheel adjustment mechanism
The design of the stroke and the position of the steering wheel is the key and difficult point of the whole cab research, and factors influencing the arrangement of the steering wheel not only comprise the comfort of the upper limb operation of different percentile persons, but also factors such as leg space, stomach space, convenience in entering and exiting, instrument vision and the like. Because the engineering machinery has less literature information about the systematic flow and quantitative research of the arrangement of the steering wheel, the method determines the hand extension and the area based on the size, the posture and the space of the human body, and calculates the position and the stroke of the steering wheel by combining the visual field requirements of the instrument, thereby reducing the research and development period of the design compared with the traditional method for repeatedly checking the arrangement of the steering wheel. The stage is as follows: determining the design angles of a steering wheel and an instrument, making a hand stretching and refining area to determine the position of the steering wheel in a driving posture, and determining the upper and lower boundaries of the steering wheel according to the area and space requirements. The method comprises the following specific steps:
1) firstly, before the position of a steering wheel is determined, the center point R of an eye ellipse is ensured8The included angle A1 between the tangent line of the display instrument and the display screen instrument is arranged as vertical as possible, and the inclination angle A is adjusted according to the recommended range angle of the steering wheel2. As shown in fig. 6.
2) According to RULA evaluation in user research or man-machine simulation software, the most comfortable upper limb driving posture for operating a steering wheel and corresponding joint size data are obtained, and a shoulder joint R is extracted2And elbow joint R4The angle range and the position data of the hand-holding device are combined with the leg space requirements to determine the comprehensive hand-holding and comfortable operation areas 8 of different percentile persons, and the center point of a steering wheel and the center point R of a 95 percentile palm0And matching, adjusting the angle between the instrument and the steering wheel, and ensuring that the view of the instrument is not blocked. As shown in fig. 7.
3) Based on the determined position of the steering wheel, the center point of the steering wheel is adjusted to the boundary of the hand-stretch and comfortable handling area 8, which is recorded as the upper boundary of the steering wheel adjustment. According to the determined steering wheel position M1From the centre point M of the embracing column0The steering wheel rotates towards the direction of the seat, the safety clearance requirement between the steering wheel and the legs and the stomach space requirement of the 5-percentile human body model are met, and the downward adjusting range of the steering wheel in the state is determined.
4) Determining three positions of the steering wheel, namely an initial position M according to the steps2Design position M1Final position M3. Checking the embracing column and the shank R according to three positions of the steering wheel7The safety clearance of (2) draws the size constraint of the embracing column, and the design refinement of the output model is realized. The steering wheel position and the adjusting stroke A3The driver's seat is scientifically designed from the comfortable posture of a person, the space of a cab and the structural design cost are saved, and the comfort of the upper limb operation and the legs of the driver is improved.
(4) Determining the position of the handle, the center point of the handle adjusting mechanism and the adjusting range
The traditional adjustment mode of the handle of the cab of the loader is generally a fixed mode or a front-back adjustment mode, but for the control component of the handle which is operated for a long time, the operation posture of a human body and the comfort of joint angles are particularly important in the long-time operation process. According to the method, the most comfortable upper limb posture of the human body is determined according to the comfort level of the joints of the human body, the control device is used for matching hand operation areas of different percentile humans and accurately calculating the adjusting stroke of the handle mechanism, instead of changing the upper limb postures of the different percentile humans to compromise and match the control device, the comfort and the safety of operation are improved, and the space and the structural design cost of a cab are saved. The method comprises the following specific steps:
1) according to the position of the H point and the trunk angle A of the three percentile human body models40Determining P95、P50、P5Shoulder joint center point R2Location. Combined wrist R5And elbow R6Determining the angle and the size of the comfortable joint and determining the central point R of the palm0Position K attached to handle5、K50、K95。
2) The handle 2 is enveloped in motion and matched with the palm center point R0Position K attached to handle5、K50、K95Checking the safety clearance between the motion envelope and the adjusting stroke of the steering wheel 9, entering the next step if the safety clearance requirement is met, and otherwise, adjusting the Y-direction position of the handle to ensure that the safety clearance requirement is met.
3) As shown in FIG. 8, according to K5、K50、K95Can determine the central point K of the handle adjusting mechanism0And the adjustment range A4. At the moment, when the 5 th percentile person is positioned at the foremost and uppermost position of the seat 7, the handle is adjusted to the foremost state, namely K5This position is also the design position K for a 5% driver's operation5、K50、K95The same is true for the matching degree of the percentile person, and the position and the angle A of the handle are adjusted in the state4Have been determined. According to the position of the handle and the hand operation positions of three percentile persons, the X-direction and Z-direction adjusting strokes of the elbow support 3 can be calculated.
The method accurately calculates the handle operation positions of three percentiles, determines the structure adjustment form and the stroke of the handle, saves the space of a cab and the structural design cost, and improves the comfort of the upper limb operation of a driver. The entire cab layout is shown in fig. 5: the human-computer comfort is strong, the layout is compact, the cost is low, and the generalization is strong.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The loader cab layout method based on the human-machine engineering is characterized by comprising the following steps:
determining the overall dimension of a universal component of a cab;
determining a driving posture and a design position of a driver;
determining the position of a steering wheel and the adjusting range of a steering wheel adjusting mechanism;
the position of the handle, the central point of the adjusting mechanism and the adjusting range are determined.
2. The ergonomic loader cab layout method of claim 1 wherein the specific operations to determine the dimensions of the cab-generalized component outline are as follows:
determining the contour dimension range and the key number requirements of the handrail box of the series loader according to the contour dimension of the handrail box of the series loader, and determining the key module size of each type of loader;
collecting and numbering handle models and operating lever models of a series loader, selecting the maximum size of a handle mounting surface and the maximum base size of a handle as design input to construct the handle mounting surface and the mounting base size, and determining the space size of a handle module by considering an assembly gap;
counting the number and the sizes of keys of series of loader interiors, selecting a target machine type as key input of a cab interior design, determining the arrangement positions of the keys in the cab and the size of a key plate in the armrest box, and determining an armrest box design strategy according to the space size requirement of a handle module;
and finally determining the handrail box dividing module according to the operation type of the operating rod 6 and the handle 2 and the maximum number and size of keys.
3. The ergonomic-based loader cab layout method of claim 1, wherein the model with the largest key footprint is selected as a key input for cab interior design.
4. The ergonomic loader cab layout method of claim 1, wherein the specific operations to determine the driver's driving posture and design position are as follows:
taking a 5-percentile human body model as follows: p5=1550mm, the 50 percentile mannequin is: p50=1730mm, 95 percentile mannequin: p95=1910mm, three-dimensional modeling is carried out on a loader cab and a loader complete machine model;
inputting the size and the model of a model selecting steering wheel 9 in a cab, inputting the positions of a series of display screen combination instruments 10 and a steering wheel column 11 base as basic data constraint conditions, and selecting the instrument with the largest size as a design and check instrument 10;
inputting the front and rear strokes and the up and down strokes of the model selection seat 7; and verifying whether the driving space and the head space of the P95 human body model meet the design requirements under the driving posture, entering the next step on the premise of meeting the vision field requirement and the head space, and otherwise, adjusting the parameters of the trunk angle to meet the safety clearance requirement of the head envelope R3.
5. The ergonomic-based loader cab layout method of claim 4, wherein three-dimensional modeling is performed on the loader cab and the loader complete machine model through three-dimensional software.
6. The ergonomic loader cab layout method of claim 1, wherein the specific operations to determine the steering wheel position and the adjustment range of the steering wheel adjustment mechanism are as follows:
an included angle A between the tangent line from the center point R8 of the eye ellipse to the display instrument and the display screen instrument1On the premise of vertical arrangement, the inclination angle A is adjusted according to the recommended range angle of the steering wheel2；
Extraction of shoulder joint R2And elbow joint R4The angle range and the position data of the hand-holding device are combined with the leg space requirements to determine the comprehensive hand-holding and comfortable operation areas 8 of different percentile persons, and the center point of a steering wheel and the center point R of a 95 percentile palm0Matching, adjusting the angle between the instrument and the steering wheel, and ensuring that the view of the instrument is not blocked;
determining steering wheel position M1Determining the downward adjusting range of the steering wheel in the state;
according to the three positions of the steering wheel determined: initial position M2Design position M1Final position M3Checking the poles and legs R7The safety clearance of (2) determines the size constraint of the embracing column and refines the design of the output model.
7. The ergonomic loader cab layout method of claim 6, wherein the steering wheel position M is determined1The safety clearance requirement of the steering wheel and the leg and the stomach space requirement of the 5-percentile human body model are met, and the downward adjusting range of the steering wheel in the state is determined.
8. The ergonomic loader cab layout method of claim 1 wherein the specific operations to determine the handle position, the adjustment mechanism center point and the adjustment range are as follows:
determining palm center point R0Position K attached to handle5、K50、K95；
The handle 2 is enveloped in motion and matched with the palm center point R0Position K attached to handle5、K50、K95Checking the motion envelope and the safety clearance in the adjusting stroke of the steering wheel 9, entering the next step if the safety clearance requirement is met, and otherwise, adjusting the Y-direction position of the handle to meet the safety clearance requirement;
according to K5，K50，K95Determining the center point K of the handle adjusting mechanism0And the adjustment range A4And calculating the X-direction and Z-direction adjusting strokes of the elbow rest 3 according to the position of the handle and the hand operation positions of three percentile persons.
9. The ergonomic loader cab layout method of claim 1 wherein the three percentile mannequins are based on H point position and torso angle a40Determining P95、P50、P5Shoulder joint center point R2Position, in combination with wrist R5And elbow R6Determining the angle and the size of the comfortable joint and determining the central point R of the palm0Position K attached to handle5、K50、K95。
10. A cab, characterized by being designed using the ergonomic loader cab layout method of claim 1.
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| CN113638461A (en) * | 2021-08-26 | 2021-11-12 | 江苏徐工工程机械研究院有限公司 | Interior layout method and control system in narrow space |
| CN113933080A (en) * | 2021-09-27 | 2022-01-14 | 江苏徐工工程机械研究院有限公司 | Engineering machine tool driver's cabin H point calibration device |
| WO2023241146A1 (en) * | 2023-02-22 | 2023-12-21 | 江苏徐工工程机械研究院有限公司 | Control box and design method therefor, and construction machinery |
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