CN100580214C - Driver's cabin of engineering machinery - Google Patents
Driver's cabin of engineering machinery Download PDFInfo
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- CN100580214C CN100580214C CN200610031743A CN200610031743A CN100580214C CN 100580214 C CN100580214 C CN 100580214C CN 200610031743 A CN200610031743 A CN 200610031743A CN 200610031743 A CN200610031743 A CN 200610031743A CN 100580214 C CN100580214 C CN 100580214C
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- car door
- cabin
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Abstract
The invention relates to a cab of engineering machinery, which comprises a main body, a front window and a door. Wherein, said door comprises a door body connected to one switch device; said switch device comprises a rotating axle and a connecting rod transmission device; the connecting rod transmission device is formed by parallel first upper and lower connecting rods and parallel second upper and lower connecting rods; the rotating axle is fixed inside the cab; one end of first upper and lower connecting rods is connected to the rotating axle, while another end is connected to the top and bottom of vehicle door; one of second upper and lower connecting rods is connected to the main body of cab, while another end is connected to the top and bottom of vehicle door. The invention has simple structure and beautiful appearance, while it uses closed window to obtain better operation stability and easy pushing-drawing, with long service life.
Description
Technical field
The present invention is mainly concerned with the driver's cabin field of engineering machinery or walking machine, refers in particular to a kind of driver's cabin of engineering machinery.
Background technology
In the engineering machinery or walking machine of prior art; has the implement of driver's cabin in the course of the work because the influence of factors such as the stone of working environment splashes, dust, noise, wind and rain, high low temperature, intensive ultraviolet as hydraulic crawler excavator etc.; and to the needs of driver's personal safety protection; the driver need work in the driver's cabin; and because the needs of the duty of the visual machine of driver executing agency, such driver's cabin should have front window.In addition because the driver requires the unlatching front window obtaining the shutting brighter visual effect that front window just has relatively under specific working environment, but or even peak with heading, can propaganda directed to communicate, can enjoy demand such as natural wind, so this front window has function to be opened/closed.
But general open and close type cab front window comprises forms, race, assembly pulley, spring, wire rope, steady pin and locking device, and race is opened in the both sides of cab body, and race is the groove that stamps out on the cab body.Be respectively equipped with upper and lower two rollers in the both sides of forms, this roller is slidedly arranged in the race, and the movement locus that can limit roller by race limits the movement locus of front window indirectly.Bottom roller is the power-assisted stress point of servomechanism simultaneously, and an end of wire rope is fixed on the bottom roller, upwards walks around front wheel along the race direction and is connected with spring, and the other end of spring is walked around rear wheel and is fixed in steady pin, and locking device is fixed on the forms.Spring is elongated to the longest position when forms are in the closed position, and spring applies a pulling force that makes progress by wire rope and pair of rollers forms, at this moment the pulling force maximum.The dead bolt of locking device is stuck in the snap close of opening in cab body the place ahead, and assurance forms closed condition is fixed.When forms were in the enable possition, spring foreshortened to the shortest position, and spring applies a pulling force that makes progress by wire rope and bottom roller to forms, at this moment the pulling force minimum.The dead bolt of locking device is stuck in the snap close of opening the cab body top, and assurance front window opening is fixed.Its operating principle is: at first forms are in closed condition.The operator presses the unlock button of locking device simultaneously to hold the handle on forms or the forms, and the dead bolt of locking device bounces back under the unlock button effect, and forms break away from the position restriction of the snap close that is positioned at cab body the place ahead, enter movable state.This moment, spring was elongated to the longest position always, and spring applies a pulling force that makes progress by wire rope and bottom roller to forms, i.e. the unlatching power-assisted of a maximum.But this unlatching power-assisted can not directly be mentioned forms.The operator holds handle, under the help of opening power-assisted, overcome the gravity of forms jointly and go up friction that bottom roller moves in race and make on the front window and move, because last bottom roller is limited by the track of race, forms move to the basic horizontal state by basic vertically state, in this process, the power-assisted of windowing that spring provides reduces gradually.When forms were opened near the extreme higher position, the inclined-plane on the cab body made the dead bolt retraction of locking device, and when arriving the snap close of cab body top, dead bolt stretches out, with the front window fixed-site.When needs were closed forms, the pass closed procedure was opposite with opening process, but servomechanism does not provide a gradually little power-assisted of windowing, and provided the pulling force of a gradually big counteracting front window gravity.The operator holds handle, cooperates action of gravity that forms are put down, and is same, and when front window was closed near extreme lower position, the inclined-plane on the cab body made the dead bolt retraction of locking device, and when arriving the snap close in cab body the place ahead, dead bolt stretches out, and window position is fixed.This structure adopts the opening ways of spring by wire rope and pulley power-assisted, and the problem of its existence just is: 1, spring force day by day reduces.Preceding forms most time when operate as normal closes, so most time of spring is in the maximum tension state when operate as normal, the mechanical stretching spring is in the maximum position of its design work stroke for a long time, must cause spring rate to diminish, showing as elastic force day by day reduces, do not reach design elastic force, promptly do not reach the power-assisted effect that upwards promotes of design yet.2, spring steel wire rope servomechanism does not reach a kind of desirable power-assisted effect.From the curve (referring to Figure 22) of spring steel wire rope servomechanism, when preceding forms are in the below, also i.e. spring force maximum during the starting position of motion, on climb in the journey and diminish gradually.For safety, it is up immediately not allow preceding forms unclamp at snap close one, and the spring maximum pull must design less than front window gravity+rail friction power.This mechanism added a limits value to spring force like this, and the relation of elastic force and stroke is more and more littler with stroke again, so can not reach a kind of desirable power-assisted effect.3, reliability is lower during spring steel wire rope servomechanism rapid movement.The spring steel wire rope in the front window guide rail, exist during rapid movement friction and wire rope jump out race may, this brings hidden danger of quality for product of using this mechanism.
Existing car door has mostly adopted the hinge type design, one end of car door is articulated in a side of cab body, when opening car door, promotes the opposite side of car door, making car door is center of rotation with the hinge axis, and is that radius scans a fan-shaped area of space with the vehicle door edge.This car door with the hinge type design, when the switch car door, all need to take bigger space, like this, put more for a long time or when working at vehicle than narrow region, the switch car door is just very inconvenient, bring inconvenience for driver's discrepancy, also improved car door causes damage in the switching process possibility, and the hinge type of transmission design visual effect is also bad.There is the practitioner that the hinge type car door is made improvements design, the design of employing slide rail type, top and bottom at driver's cabin are equiped with slide rail, and be equiped with and the corresponding roller of slide rail in the top and the bottom of car door, utilize the cooperation of roller and slide rail, car door is moved along the direction of slide rail, make that the route of car door in the switching process is straight line or certain camber line, all do not take than large space.But the design of this car door make the switching of car door bigger depend on cooperating of slide rail and roller, and general engineering machinery, as hydraulic crawler excavator etc., all be operated in the ten minutes rugged environment, dust, sandy soil and various mixed pollutants are more, these pollutants can both cause slide rail and cooperating of roller to have some setbacks, thereby greatly reduce the adaptive capacity of this slide rail type car door, the cab space that the setting of slide rail is simultaneously just very limited to script seems more and is difficult to arrange, and has shortcomings such as working life is not long, unreliable, maintenance difficulty is big.
Summary of the invention
The technical problem to be solved in the present invention just is, technical problem at the prior art existence, the invention provides a kind of simple in structure, good looking appearance, adopt the open and close type window design, take up room during opening/closing door of vehicle hour, and the driver's cabin of the engineering machinery of push-and-pull convenience, good operating stability, long service life.
In order to solve the problems of the technologies described above, the solution that the present invention proposes is: a kind of driver's cabin of engineering machinery, it comprises cab body, front window and car door, it is characterized in that: described car door comprises the car door body, the car door body links to each other with a switching mechanism, described switching mechanism comprises turning cylinder and jointed gear unit, jointed gear unit by be arranged in parallel first on connecting rod and first lower link and be arranged in parallel second on connecting rod and second lower link form, turning cylinder is fixed in the driver's cabin, an end of the connecting rod and first lower link links to each other with turning cylinder on first, and the other end is connected to the top and the bottom of car door body; An end of the connecting rod and second lower link is connected on the cab body on second, and the other end is connected to the top and the bottom of car door body.
The top of described car door body and bottom are respectively equipped with upper junction plate and lower connecting plate, on first on the connecting rod and second end of connecting rod be connected on the upper junction plate, an end of first lower link and second lower link is connected on the lower connecting plate.
Top on the described cab body and bottom are respectively equipped with upper mounted plate and bottom plate, and turning cylinder is fixed on upper mounted plate and the bottom plate, and an end of the connecting rod and first lower link links to each other with turning cylinder with clutch shaft bearing by the 3rd bearing pin on first.
But described front window is the open and close type front window, it comprises forms and rail plate, described rail plate is installed on the both sides of cab body, the both sides of forms are provided with the roller body that slidably is matched with in the rail plate, the both sides of described forms are respectively equipped with a connecting rod, one end of connecting rod links to each other with forms, and the other end of connecting rod is connected on the cab body; The both sides of cab body are respectively equipped with an air spring, and an end of air spring is connected with connecting rod, and the other end links to each other with cab body.
Described forms are provided with dead bolt, and cab body is provided with and the corresponding snap close of forms upper lock tongue.
Described connecting rod is provided with and the corresponding locked groove of forms upper lock tongue.
Offer on the described cab body to be used for eliminating and dodge mouth with jointed gear unit is interfered, and be provided with movable decoration plate mechanism at the rear of dodging mouthful, this movable decoration plate mechanism comprises decorative panel, axis of rotation, return spring and connecting rod, connecting rod one end links to each other with decorative panel, the other end is fixed on the cab body by axis of rotation, is equiped with return spring on the axis of rotation; Connecting rod is provided with the contact site that can link to each other with the opening/closing door of vehicle linkage; The profile of dodging on the profile of described decorative panel and the cab body mouthful is consistent.
The connecting rod and first lower link are the curved rod with orthodrome turning on described first.
Compared with prior art, advantage of the present invention just is:
1, the driver's cabin of engineering machinery of the present invention links to each other car door with a switching mechanism, this switching mechanism adopts the mode of four connecting rod transmissions, make car door when opening and closing along with translational motion is done in the promotion of four connecting rods outwards, forward, institute takes up space very little, need take big quantity space when having solved in the prior art opening/closing door of vehicle and cause car door opening inconvenience, problem such as fragile; The car door of driver's cabin of the present invention, top and bottom at the car door body are respectively equipped with upper junction plate and lower connecting plate, one end of quadric chain is connected on the junction plate, the other end is fixed in the driver's cabin, like this, cause than the influence on the large space for the narrow and small driver's cabin of script, be beneficial to the further optimal design in the driver's cabin; The car door of driver's cabin of the present invention, adopt the mode of four connecting rod transmissions to drive car door realization switching, it has advantages such as simple in structure, rationally distributed, applied widely, reliable operation, long service life, and noise is very little when opening and closing, and can satisfy the needs of various engineering machinery or walking machine driver's cabin design.
2, the driver's cabin of engineering machinery of the present invention utilizes the motion drive forms of air spring and connecting rod to move in rail plate and realizes the switching of front window, simple in structure, the assembling simple and easy, air spring can keep elastic force constant always, its good operating stability, safe and reliable, long service life; The power-assisted switching mechanism that air spring and connecting rod are formed can reach even more ideal power-assisted effect, and is convenient, fast when making the driver open and close front window, laborsaving.The driver's cabin of engineering machinery of the present invention further is provided with dead bolt on forms, and on connecting rod and cab body, be provided with locked groove and the snap close that cooperates with dead bolt respectively, make the forms can be after switching work is finished, be fixed on some permanent positions of driver's cabin, can be at the influence that is subjected to sharp pounding under the duty or rocks, its good stability;
3, the driver's cabin of engineering machinery of the present invention is equiped with movable decoration plate mechanism, utilize in the movable decoration plate mechanism contact site on the connecting rod to keep interlock with the opening/closing door of vehicle linkage, when the opening/closing door of vehicle connecting rod mechanism movement and when promoting opening/closing door of vehicle, to drive connecting rod simultaneously and promote the decorative panel motion, the mouth of dodging on the cab body is reasonably blocked, driver's cabin car door bulk shape aesthetic property can either be improved, the dead angle that mouth becomes ponding or laying dust can be prevented to dodge again.
Description of drawings
Structural representation when Fig. 1 is front window of the present invention and car door full open position;
Structural representation when Fig. 2 is front window of the present invention and car door buttoned-up status;
Fig. 3 is the main TV structure schematic diagram of car door opening state of the present invention;
Fig. 4 is the plan structure schematic diagram of car door opening state of the present invention;
Fig. 5 is the structural representation that jointed gear unit is connected with car door among the present invention;
Fig. 6 is the structural representation that jointed gear unit is connected with cab body among the present invention;
Fig. 7 is the structural representation that connecting rod is connected with car door on first among the present invention;
Fig. 8 is the structural representation that first lower link is connected with car door among the present invention;
Fig. 9 is the structural representation that first lower link is connected with turning cylinder among the present invention;
Figure 10 is the structural representation that second lower link is connected with cab body among the present invention;
Structural representation when Figure 11 is a front window buttoned-up status of the present invention;
Structural representation when Figure 12 is the semi-open state of front window of the present invention;
Structural representation when Figure 13 is a front window full open position of the present invention;
Figure 14 is the cross-sectional schematic at A-A place among Figure 12;
Figure 15 is the cross-sectional schematic at B-B place among Figure 12;
Figure 16 is the cross-sectional schematic at C-C place among Figure 12;
Figure 17 is the cross-sectional schematic at D-D place among Figure 12;
Figure 18 is the cross-sectional schematic at E-E place among Figure 12;
Figure 19 is the cross-sectional schematic at F-F place among Figure 11;
Figure 20 is the cross-sectional schematic at G-G place among Figure 13;
Figure 21 is that the K of Figure 10 is to schematic diagram;
Figure 22 is the schematic diagram of power-assisted curve among prior art and the present invention;
Figure 23 is the perspective view of movable decoration plate mechanism among the present invention;
Figure 24 is the connection diagram of decorative panel connecting rod and cab body;
Schematic top plan view when Figure 25 is the closing of the door state;
Schematic top plan view when Figure 26 is the semi-open state of car door;
Figure 27 is the schematic top plan view when movable decoration plate mechanism tail gate full open position is housed.
Marginal data
101, car door body 102, turning cylinder
103, connecting rod 104, first lower link on first
105, connecting rod 106, second lower link on second
108, upper junction plate 109, lower connecting plate
110, first bearing pin 111, second bearing pin
112, bearing 113, upper mounted plate
114, bottom plate 115, the 3rd bearing pin
116, clutch shaft bearing 117, the 4th bearing pin
118, second bearing 119, the 3rd bearing
120, the 4th bearing 121, the 5th bearing pin
122, pin 123, key
124, connector on nut 1201, the turning cylinder
1202, connector 1203, turning cylinder main body under the turning cylinder
201, decorative panel 202, axis of rotation
203, return spring 204, decorative panel connecting rod
206, contact site 207, dodge mouth
301, connecting rod 302, air spring
303, forms 304, rail plate
305, snap close 306, lock body
307, roller body 308, handle
9, cab body 311, first rotating shaft
312, screw 313, nut
314, locked groove 321, second rotating shaft
322, the 3rd rotating shaft 361, dead bolt
331, bearing
The specific embodiment
Below with reference to the drawings and specific embodiments the present invention is described in further details.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and shown in Figure 6, the driver's cabin of engineering machinery of the present invention comprises cab body 9, front window and car door, this car door comprises car door body 101, car door body 101 links to each other with a switching mechanism, this switching mechanism comprises turning cylinder 102 and jointed gear unit, jointed gear unit by be arranged in parallel first on connecting rod 103 and first lower link 104 and be arranged in parallel second on connecting rod 105 and second lower link 106 form, wherein the connecting rod 103 and first lower link 104 have adopted the curved rod with orthodrome turning on first, compare with the connecting rod that does not adopt the orthodrome turning, adopt orthodrome turning connecting rod, car door opening has reduced when car door body 101 is opened and the interference of cab body 9 when same position.Turning cylinder 102 is fixed in the driver's cabin, and turning cylinder 102 can guarantee being synchronized with the movement between each connecting rod, and improves the integral rigidity of jointed gear unit.An end of the connecting rod 103 and first lower link 104 links to each other with turning cylinder 102 on first, and the other end is connected to the top and the bottom of car door body 101; An end of the connecting rod 105 and second lower link 106 is connected on the cab body 9 on second, and the other end is connected to the top and the bottom of car door body 101.In the present embodiment, the top of car door body 101 and bottom are respectively equipped with upper junction plate 108 and lower connecting plate 109, on first on the connecting rod 103 and second end of connecting rod 105 be connected on the upper junction plate 108, an end of first lower link 104 and second lower link 106 is connected on the lower connecting plate 109.Referring to shown in Figure 7, be connected by first bearing pin 110 between connecting rod 103 and the upper junction plate 108 on first, first bearing pin 110 is fixed by nut, and is provided with pad and bullet pad at the place of interconnecting, and connecting rod 103 can freely rotate around first bearing pin 110 on first.On second on the connected mode and first of connecting rod 105 and upper junction plate 108 connected mode between connecting rod 103 and the upper junction plate 108 identical, do not repeat them here.Referring to shown in Figure 8, link to each other by second bearing pin 111 and bearing 112 between first lower link 104 and the lower connecting plate 109, second bearing pin 111 is fixed by nut, and is provided with pad and bullet pad at the place of interconnecting, and first lower link 104 can freely rotate around second bearing pin 111.Second lower link 106 with and lower connecting plate 109 between connected mode identical with the connected mode between first lower link 104 and the lower connecting plate 109, do not repeat them here.The present invention further top on cab body 9 and bottom is respectively equipped with upper mounted plate 113 and bottom plate 114, turning cylinder 102 is connected in upper mounted plate 113 by the 5th bearing pin 121 and the 4th bearing 120, and turning cylinder 102 is connected on the bottom plate 114 by the 3rd bearing pin 115 and clutch shaft bearing 116, nut 124.Turning cylinder 102 can freely rotate around the 5th bearing pin 121 and the 3rd bearing pin 115.As shown in Figure 9, turning cylinder 102 comprises and interconnects on the turning cylinder that forms connector 1202 and turning cylinder main body 1203 under connector 1201, the turning cylinder.On the turning cylinder under connector 1201 and the turning cylinder connector 1202 fixing by bolt and turning cylinder main body 1203.One end of first lower link 104 links to each other by connector 1202 under the turning cylinder of the 3rd bearing pin 115 and key 123 and turning cylinder 102, and the 3rd bearing pin 115 is fixed by nut, and is provided with pad and bullet pad at the place of interconnecting.On first between connecting rod 103 and the turning cylinder 102, link to each other by connector 1202 under the turning cylinder of the 5th bearing pin 121 and pin 122 and turning cylinder 102.The 5th bearing pin 121 is fixed by the screw thread of connecting rod 103 on first.The connecting rod 103 and first lower link 104 are fixed on the turning cylinder 102 on first, rotate with turning cylinder 102.Referring to shown in Figure 10, link to each other with second bearing 118 by the 4th bearing pin 117 between the bottom plate 114 of second lower link 106 and cab body 9, the 4th bearing pin 117 is fixed by nut, and is provided with pad and bullet pad at the place of interconnecting.Like this, each connecting rod of jointed gear unit can rotate along with turning cylinder 102 and each bearing pin, thereby drives car door 1 motion.The operating principle that the car door body opens and closes: when needs are opened car door, car door body 101 is done translational motion outwards, backward along with the swing of each connecting rod in the jointed gear unit, reaches the maximum enable possition that limits, the motion of car door body 101 does not at this moment take very large space, is similar to move horizontally.At closing time, in like manner, car door body 101 is done translational motion outwards, forward along with the swing of each connecting rod in the jointed gear unit, closes up to the car door body.In this process, the motion of jointed gear unit is steadily reliable, and noise is little, and simple in structure, be adapted under the various environment work, its wide adaptability.
As Figure 11, Figure 12 and shown in Figure 13, the driver's cabin of engineering machinery of the present invention, its front window is a front window to be opened/closed, it comprises forms 303 and rail plate 304, rail plate 304 is installed on the both sides of cab body 9, the both sides of forms 303 are provided with the roller body 307 that slidably is matched with in the rail plate 304, referring to shown in Figure 180, the roller body 307 of forms 303 both sides is slidedly arranged in the rail plate 304, and the cooperation by roller body 307 and rail plate 304 makes forms 303 along rail plate 304 upper and lower moving.The both sides of forms 303 are respectively equipped with a connecting rod 301, and forms 303 link to each other with an end of a connecting rod 301, and referring to shown in Figure 17, connecting rod 301 is fixed on the bearing 331 on the forms 303 by screw 312 and nut 313; The other end of connecting rod 301 is connected on the cab body 9, and referring to shown in Figure 14, connecting rod 301 links to each other with cab body 9 by first rotating shaft 311, and connecting rod 301 can rotate around first rotating shaft 311, moves thereby drive forms 303.The both sides of cab body 9 are respectively equipped with an air spring 302, and an end of air spring 302 is connected with connecting rod 301, and as shown in figure 15, air spring 302 is connected with connecting rod 301 by second rotating shaft 321, and air spring 302 can rotate around second rotating shaft 321; The other end of air spring 302 links to each other with cab body 9, and as shown in figure 16, air spring 302 links to each other with cab body 9 by the 3rd rotating shaft 322, and air spring 302 can rotate around the 3rd rotating shaft 322.In the present embodiment, further at forms 303 up knobs 308, this handle 308 can make things convenient for the driver to open and close front window.Handle 308 is provided with lock body 306, and is provided with on cab body 9 and lock body 306 upper lock tongues 361 corresponding snap closes 305, and referring to shown in Figure 19, when forms were closed, dead bolt 361 was arranged in the snap close 305, realizes locking.Referring to Figure 20 and shown in Figure 21, further on connecting rod 301, offer concave part and form locked groove 314, when forms 303 were opened to maximum position, dead bolt 361 was arranged in the locked groove 314, realized locking.Like this, can realize the locking of two positions, both guarantee the attractive in appearance of front window, can play good stablizing effect again once cover lock body 306.
For air spring 302, air spring can keep elastic force constant always, though air spring 302 was in a kind of compressive state when front window was closed in most time, but its compressive state is not the shortest point in the design compression travel, is that air spring 302 long-term stop places are not the maximum load position yet.In addition, even present air seal technology on the market mill run under this pressure rating can accomplish fully that also zero reveals.And air spring 302 can reach more desirable power-assisted effect with the power-assisted switching mechanism that connecting rod 301 combines.The power-assisted switching mechanism stroke power-assisted curve that air spring 302 and connecting rod 301 combine is (what a curve was represented among the figure is power-assisted switching mechanism stroke power-assisted curve of the present invention, and what b represented is power-assisted switching mechanism stroke power-assisted curve in the prior art) as shown in figure 22.In the process of opening, at first one section less stroke is that a bigger negative power transits to maximum negative power gradually in off position, cross the mechanism dead point after maximum negative power saltus step be maximum positive power, carry out the transition to minimum positive power more gradually.Compare with the design of wire rope in the existing mechanism and spring, suppose that final power-assisted parameter is in full accord, because the difference of mechanism, the power-assisted of the power-assisted switching mechanism that air spring 302 and connecting rod 301 combine in most stroke are greater than the power-assisted of the switching mechanism of spring and wire rope composition.Owing to reason above-mentioned, the spring maximum pull of spring and wire rope switching mechanism must design less than forms 303 gravity and rail friction power sum, and this is a restrictive condition.Air spring 302 does not then have this restrictive condition with the power-assisted switching mechanism that connecting rod 301 combines, can strengthen the elastic force of air spring 302 during design, the power-assisted effect of the power-assisted switching mechanism that air spring 302 and connecting rod 301 combine will obviously be better than the power-assisted effect of spring steel wire rope switching mechanism.Because in the prior art, the switching mechanism that spring and wire rope are formed passes through the roller set below the omnidistance pulling forms, in whole front window opening process, the move distance of roller set is generally more than 1.5m again.And the motion process of air spring 302 from range to the mechanism dead point, the contracted length of piston rod has only several centimetres to tens centimetres, stretching of the flexible member of such two kinds of servomechanisms differs one even two orders of magnitude on stroke, even the spring in the switching mechanism that spring and wire rope are formed is done longly again, also can not remedy the stiffness difference of the flexible member that the gap of one or two order of magnitude brings, therefore the curve of the power-assisted switching mechanism that combines of air spring 302 and connecting rod 301 wants much mild, and the power-assisted effect that so further embodies the switching mechanism of relative spring of this mechanism and wire rope composition will be got well.
The operating principle that front window opens and closes: when forms 303 are in the closed position, air spring 302 is compressed near the shortest position, air spring 302 applies a thrust that makes progress by 301 pairs of forms 303 of connecting rod, and this thrust can produce a component that forms 303 is compressed cab body 9 forward.The dead bolt 361 that is fixed in the lock body 306 on the forms 303 is stuck in the snap close 305 that is provided with on the cab body 9, guarantees that the front window closed condition is stable.When forms 303 were in the enable possition, air spring 302 was stretched to the longest position, and air spring 302 applies a thrust that makes progress by 301 pairs of forms 303 of connecting rod, at this moment the thrust minimum.The dead bolt 361 that is fixed in the lock body 306 on the forms 303 is stuck in the locked groove 314 of connecting rod 301, guarantees that the front window opening is stable.The process of opening front window is: at first forms 303 are in closed condition, the operator is to hold handle 308, press the unlock button of down lock body 306 simultaneously, the dead bolt 361 of lock body 306 bounces back under the unlock button effect, forms 303 break away from the position restriction that is positioned at snap close 305 on the cab body 9, enter movable state.This moment, air spring 302 was compressed near the shortest position, air spring 302 applies a thrust that makes progress by 301 pairs of forms 303 of connecting rod, this thrust can produce a component that forms 303 is compressed cab body 9 forward, but because of spending near 90 the angular separation of this thrust and component, component is very little, this minute, force direction was opposite with the direction of motion of forms 303, was not the power-assisted of windowing, but resistance.The operator holds handle 308, and forms 303 are applied a pulling force to the back upper place, and this pulling force overcomes the gravity of forms 303, roller body 307 and the frictional resistance of rail plate 304 and the resistance that 302 pairs of forms 303 of air spring apply, and forms 303 move to the back upper place.Open certain angle (this angle is very little) when forms 303, air spring 302 is compressed into the shortest, and this mechanism arrives the dead point, and air spring 302 neither provides opening resistance, and the unlatching power-assisted is not provided yet.When the dead point is crossed by mechanism, air spring 302 applies the unlatching power-assisted by 301 pairs of forms 303 of connecting rod.Select the air spring 302 of suitable thrust, the need that this unlatching power-assisted can make operator in this section opening process with operating physical force very little even do not have.In this process, the power-assisted of windowing that air spring 302 provides reduces gradually.When forms 303 were opened near the extreme higher position, connecting rod 301 is run on dead bolt 361 inclined-planes of lock body 306 made dead bolt 361 retractions, and when the locked groove 314 on the dead bolt 361 arrival connecting rods 301, dead bolt 361 stretches out, with the front window fixed-site.The process of opening front window is: the process of closing front window is opposite with the process of opening front window, but servomechanism does not provide a gradually little power-assisted of windowing, and provides the thrust of gradually big counteracting forms 303 gravity.The operator holds handle 308, cooperates the action of gravity of forms 303 that forms 303 are put down, and when the dead point was crossed by mechanism, the thrust of air spring 302 became pass window power-assisted by closing the window resistance.Equally, when forms 303 were closed near extreme lower position, the inclined-plane on the cab body 9 made dead bolt 361 retractions of lock body 306, and when arriving snap close 305 positions on the cab body 9, dead bolt 361 stretches out, with the front window fixed-site.
Adopting jointed gear unit to drive in the driver's cabin design of car door translation, be close to that the lateral surface of cab body 9 is parallel to be moved backward, finishing and open the door because will make connecting rod drive car door body 101.When the swing by connecting rod drives 101 switchings of car door body, do not take too many space as parallel the moving backward of the lateral surface that will accomplish to make car door body 101 be close to cab body 9 as much as possible, according to the transmission principle of connecting rod as can be known, having at least one to two connecting rod to produce with cab body 9 in the jointed gear unit interferes, as connecting rod 103 on first among the figure, therefore general way be on cab body 9 with jointed gear unit in the zone of the interference that produces of connecting rod offer one and dodge mouthfuls 207, just can effectively solve the interference problem of jointed gear unit.
As shown in figure 23, have additional a movable decoration plate mechanism among the present invention, this device is installed in the rear of dodging mouth 207 on the cab body 9, it comprises decorative panel 201, axis of rotation 202, return spring 203 and decoration connecting rod 204, decorating connecting rod 204 1 ends links to each other with decorative panel 201, the other end is fixed on the cab body 9 by axis of rotation 202, be equiped with return spring 203 on the axis of rotation 202, referring to shown in Figure 24, this return spring 203 is a torque spring, decorating connecting rod 204 can rotate around axis of rotation 202, and return spring 203 then can make it reset.Decorate connecting rod 204 and be provided with the contact site 206 that can link to each other with the opening/closing door of vehicle linkage, in the present embodiment, this contact site 206 is a bearing pin.It is consistent to dodge mouthfuls 207 profile on the profile of this decorative panel 201 and the cab body 9, and like this, when car door body 101 was closed, decorative panel 201 just can block dodging mouthfuls 207 on the cab body 9, makes the attractive in appearance and uniformity of outward appearance maintenance of whole driver's cabin.
The operating principle of movable decoration plate mechanism: referring to Figure 25 and shown in Figure 2, when car door body 101 was closed, decoration connecting rod 204 drive decorative panels 201 are positioned at dodged mouthful 207 places, will dodge mouth 207 and block; Referring to shown in Figure 26, when the opening/closing door of vehicle linkage drives car door body 101 and opens,, produce the connecting rod of interfering with the lateral surface of cab body 9 and will extend into to dodge in mouthfuls 207 and go along with the swing of connecting rod in the opening/closing door of vehicle linkage, it is eliminated interfere.Connecting rod in the while opening/closing door of vehicle linkage will be close to the contact site of decorating on the connecting rod 204 206, and promotes to decorate connecting rod 204 around axis of rotation 202 rotations, decorative panel 201 is pushed away dodge mouth 207.Referring to shown in Figure 27, when car door body 101 was opened fully, decorative panel 201 also leaves fully dodged mouth 207, and this moment, return spring 203 was in the state of tightening.When again car door body 101 being closed, connecting rod in the opening/closing door of vehicle linkage breaks away from the contact site of decorating on the connecting rod 204 206, and under the drive of return spring 203 restoring forces, decorate connecting rod 204 and also will drive decorative panel 201 returns, dodge mouth 207 up to blocking fully.
Claims (8)
1, a kind of driver's cabin of engineering machinery, it comprises cab body (9), front window and car door, it is characterized in that: described car door comprises car door body (101), car door body (101) links to each other with a switching mechanism, described switching mechanism comprises turning cylinder (102) and jointed gear unit, jointed gear unit by be arranged in parallel first on connecting rod (103) and first lower link (104) and be arranged in parallel second on connecting rod (105) and second lower link (106) form, turning cylinder (102) is fixed in the driver's cabin, one end of connecting rod on first (103) and first lower link (104) links to each other with turning cylinder (102), and the other end is connected to the top and the bottom of car door body (101); One end of connecting rod on second (105) and second lower link (106) is connected on the cab body (9), and the other end is connected to the top and the bottom of car door body (101); Offer on the described cab body (9) to be used for eliminating and dodge mouthful (207) with jointed gear unit is interfered, and be provided with movable decoration plate mechanism at the rear of dodging mouthful (207), this movable decoration plate mechanism comprises decorative panel (201), axis of rotation (202), return spring (203) and connecting rod (204), connecting rod (204) one ends link to each other with decorative panel (201), the other end is fixed on the cab body (9) by axis of rotation (202), is equiped with return spring (203) on the axis of rotation (202); Connecting rod (204) is provided with the contact site (206) that can link to each other with opening/closing door of vehicle linkage (209); The profile of dodging mouthful (207) on the profile of described decorative panel (201) and the cab body (9) is consistent.
2, the driver's cabin of engineering machinery according to claim 1, it is characterized in that: the top of described car door body (101) and bottom are respectively equipped with upper junction plate (108) and lower connecting plate (109), an end of connecting rod (105) is connected on the upper junction plate (108) on the connecting rod on first (103) and second, and an end of first lower link (104) and second lower link (106) is connected on the lower connecting plate (109).
3, the driver's cabin of engineering machinery according to claim 1, it is characterized in that: top on the described cab body (9) and bottom are respectively equipped with upper mounted plate (113) and bottom plate (114), turning cylinder (102) is fixed on upper mounted plate (113) and the bottom plate (114), and an end of connecting rod (103) and first lower link (104) links to each other with turning cylinder (102) with clutch shaft bearing (116) by the 3rd bearing pin (115) on first.
4, according to the driver's cabin of claim 1 or 2 or 3 described engineering machinery, it is characterized in that: but described front window is the open and close type front window, it comprises forms (303) and rail plate (304), described rail plate (304) is installed on the both sides of cab body (9), the both sides of forms (303) are provided with the roller body (307) that slidably is matched with in the rail plate (304), the both sides of described forms (303) are respectively equipped with a connecting rod (301), one end of connecting rod (301) links to each other with forms (303), and the other end of connecting rod (301) is connected on the cab body (9); The both sides of cab body (9) are respectively equipped with an air spring (302), and an end of air spring (302) is connected with connecting rod (301), and the other end links to each other with cab body (9).
5, the driver's cabin of engineering machinery according to claim 4 is characterized in that: described forms (303) are provided with dead bolt (306), and cab body (9) is provided with and the corresponding snap closes of forms (303) upper lock tongues (306) (305).
6, the driver's cabin of engineering machinery according to claim 4 is characterized in that: described connecting rod (301) is provided with and the corresponding locked grooves of forms (303) upper lock tongues (306) (315).
7, according to the driver's cabin of claim 1 or 2 or 3 described engineering machinery, it is characterized in that: connecting rod on described first (103) and first lower link (104) are for having the curved rod at orthodrome turning.
8, the driver's cabin of engineering machinery according to claim 4 is characterized in that: connecting rod on described first (103) and first lower link (104) are for having the curved rod at orthodrome turning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610031743A CN100580214C (en) | 2006-05-31 | 2006-05-31 | Driver's cabin of engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610031743A CN100580214C (en) | 2006-05-31 | 2006-05-31 | Driver's cabin of engineering machinery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1877065A CN1877065A (en) | 2006-12-13 |
| CN100580214C true CN100580214C (en) | 2010-01-13 |
Family
ID=37509602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610031743A Expired - Fee Related CN100580214C (en) | 2006-05-31 | 2006-05-31 | Driver's cabin of engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100580214C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373851A (en) * | 2010-08-20 | 2012-03-14 | 扬州神舟汽车内饰件有限公司 | Engineering vehicle cab front view-window lock |
| CN103161376A (en) * | 2013-02-23 | 2013-06-19 | 三一重机有限公司 | Cab and front window of the cab and engineering machinery |
| CN103469845A (en) * | 2013-09-02 | 2013-12-25 | 三一汽车制造有限公司 | Engineering machine and driving cab thereof |
| CN110397377A (en) * | 2019-08-28 | 2019-11-01 | 杭州老板电器股份有限公司 | Cooker |
| CN112377028A (en) * | 2020-11-13 | 2021-02-19 | 马鞍山量子线自动化科技有限公司 | Front window opening and closing device of construction machinery |
-
2006
- 2006-05-31 CN CN200610031743A patent/CN100580214C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1877065A (en) | 2006-12-13 |
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