CN202088951U

CN202088951U - Automatic back door locking device for skip bucket of dumper

Info

Publication number: CN202088951U
Application number: CN 201120111911
Authority: CN
Inventors: 郑志强; 孙红军; 邹国素; 马长安; 尹忠岩
Original assignee: Anhui Hualing Automobile Co Ltd
Current assignee: Anhui Hualing Automobile Co Ltd
Priority date: 2011-04-16
Filing date: 2011-04-16
Publication date: 2011-12-28
Anticipated expiration: 2021-04-16

Abstract

The utility model relates to an automatic back door locking device for a skip bucket of a dumper, which belongs to dumpers and is characterized in that a reinforcing ribbed plate is slantingly welded on a fixing plate with a rectangular left and a rectangular lower right extending rightwards. The rectangular upper portion of the fixing plate is correspondingly welded with the right end of a bottom longitudinal beam of a skip bucket, a top-heavy locking hook is formed by a front locking hook lugged plate, a rear locking hook lugged plate and a locking hook pressure plate which are assembled and welded, and the locking hook pressure plate is clamped between the front locking hook lugged plate and the rear locking hook lugged plate which are symmetrically arranged. An upper pin penetrates into central holes I on the front locking hook lugged plate and the rear locking hook to be connected with the upper end of a chain, and a lower pin penetrates into a central hole II of the locking hook pressure plate to be hinged with a right central hole on the fixing plate. An elastic compensation block is mounted on an adjusting screw rod at the lower end of the chain and positioned on the lower portion of a main vertical plate of the fixing seat, elongation strain magnitude of the chain can be automatically compensated by means of pre-deformation of the elastic compensation block, and accordingly the back door of the skip bucket can be constantly and tightly closed by the aid of the lock hook. The automatic back door locking device is safe, reliable and high in universality.

Description

Dumping car tipping bucket back door forced locking device

Technical field

The utility model belongs to dumping truck, especially relates to the latching device at a kind of dumping truck tipping bucket back door.

Background technology

In dumping truck, catch gear is to utilize lock ear or latch hook to make to lock between back door and casing or open usually, but because the latch hook design is unreasonable, the contact surface at latch hook or lock ear and back door is little, causes the back door not lock easily, leaks goods; In long-term use, the chain of catch gear is in the load tensioned state all the time, and the time has been grown chain and can extend by nature, causes the latch hook closure not tight, and the back door is not closed completely, and causes leaking material, contaminated environment; In addition sometimes in unloading latch hook or lock ear locked easily, the back door can not be opened, and goods can not be unloaded, and forms the goods center of gravity and moves after sharply, causes front part of vehicle to upwarp, and very easily causes overturning, all is the thing of danger close to chaufeur and vehicle; Also have a kind of situation to be because the back door latch hook is unreasonable at present, cause easily after open at the back door, because the action of gravity of vehicle vibrations and chain, latch hook cuts out early than the back door, chaufeur need be got off and be broken latch hook by hand into two with one's hands, the loading space that falls once more could solve, and has brought trouble to use, has reduced conveying efficiency.

Summary of the invention

The purpose of this utility model provides a kind of dumping car tipping bucket back door forced locking device, and is not only rational in infrastructure, uses reliably, and the latch hook tight close can be eliminated effectively owing to chain extends the problem that causes leaking material naturally simultaneously.

The purpose of this utility model is achieved like this: a kind of dumping car tipping bucket back door forced locking device, comprise latch hook, chain, adapter plate and permanent seat, adapter plate is installed on the tipping bucket bottom half longeron, permanent seat is welded on the crossbeam main longitudinal grider on dumping car chassis, hinged latch hook on adapter plate, boring installs adjusting screw(rod) on the main riser of permanent seat, this adjusting screw(rod) is connected with chain again, chain is connected with latch hook again, it is characterized in that: right lower quadrant is the square plate of right elongation to adapter plate for left part is rectangular, and the right-hand member of this rectangular slab is circular arc and offers right centre hole on the right-hand member section of this rectangular slab, the oblique reinforcement gusset that is welded on adapter plate, to increase the intensity of adapter plate, with the top of this adapter plate rectangular section and the corresponding welding of right-hand member of tipping bucket bottom half longeron; Latch hook pressing plate assembly welding between the latch hook otic placode forms latch hook by the symmetrically arranged latch hook otic placode in front and back with before and after being clipped in, this latch hook otic placode is J-shaped, the gib head section that stretch on a riser section of being put by a left side and a underlying left side is formed, the left side of this riser section is arc surface, the left side of gib head section is semi circular surface, offer LC hole I at the left end of this gib head section, and the intersection of this riser section and gib head section is an arc transition, this latch hook pressing plate also is J-shaped, the tilted plate section that its epimere is stretched for declivity left for straight plate section hypomere, the left end of this tilted plate section is a circular arc, offers LC hole II at the left end of this tilted plate section; The width of the straight plate section of latch hook pressing plate is narrower than the width of latch hook otic placode riser section, before and after the straight plate section of latch hook pressing plate is clipped between the riser section of latch hook otic placode and be welded into one, and the tilted plate section that makes the latch hook pressing plate is positioned at the below of front and back latch hook otic placode gib head section, the lower left of the centre hole I before and after the centre hole II on the latch hook pressing plate is positioned on the latch hook otic placode, install upper pin in the centre hole I on the latch hook otic placode of front and back to connect the upper end of chain, and on this upper pin corresponding plain cushion and the spring cotter installed with the location, the right centre hole of wearing on bearing pin and the adapter plate in the centre hole II on the latch hook pressing plate is hinged, and on this lower bearing pin corresponding plain cushion and the spring cotter installed with the location, be fulcrum with the lower bearing pin this moment, latch hook is top-heavy shape, remain the trend of (cw revolution) to the right, make chain be in tension; The elastic compensating piece is installed at the position that is positioned at permanent seat master riser bottom on the adjusting screw(rod) of chain lower end, this elastic compensating piece can be rubber pad, elongation strain amount with the predeformation automatic compensation chain that utilizes the elastic compensating piece at any time reaches the function that latch hook closes the casing back door all the time;

When this forced locking device is installed, dumping car tipping bucket case is in full state, adjusting screw(rod) makes chain be in tension, and with elastic compensating piece compression 10-15mm, form certain predetermincd tension, at this moment has very large predetermincd tension between latch hook and the casing back door, guaranteed that casing back door tight close does not leak material, during work along with the lifting of tipping bucket case, distance between latch hook and the permanent seat reduces, and chain is lax, and latch hook is along with deadweight turns right, open naturally at the casing back door, in the latch hook open mode, owing to be " top-heavy ", the sagging moment of latch hook self is big, much larger than the sagging moment of chain, so can not cause latch hook early than the sealed situation in casing back door; After the discharged, along with the tipping bucket case falls, the distance between latch hook and the permanent seat increases, the chain tension, and latch hook will cutting out it locking along with the casing back door.The contact surface at latch hook otic placode and casing back door adopts arc surface, closing point is controlled in 1/3rd scopes of contact surface center and gets final product, reduce installation requirement, be convenient to install, closure is tightr, this latching device is automatically dumping car casing back door and casing firm locking, automatic unlocking during unloading, open voluntarily at the casing back door, because of installed the elastic compensating piece additional in device, automatic compensation the elongation strain of chain, reach the function at tight closure casing back door all the time.

The dumping car tipping bucket back door forced locking device that the utility model proposed, compact conformation, reasonable, latch hook tight close, use simple to operately, manufacture easily long service life, be easy to install and change and repair, safe and reliable and highly versatile has satisfied the operating needs of self-discharging transporter.

Now in conjunction with the accompanying drawings and embodiments the dumping car tipping bucket back door forced locking device that the utility model proposed is described further.

Description of drawings

Fig. 1 is that the master of the dumping car tipping bucket back door forced locking device that proposes of the utility model looks scheme drawing.

Fig. 2 is the dumping car tipping bucket back door forced locking device scheme of installation that the utility model proposes.

Fig. 3 is a part 14 among Fig. 1: scheme drawing is looked on the left side of latch hook.

Among Fig. 1-Fig. 3: 1, main longitudinal grider 2, bottom half longeron 3, casing back door 4, latch hook pressing plate 5, latch hook otic placode 6, upper pin 7, lower bearing pin 8, reinforcement gusset 9, adapter plate 10, chain 11, permanent seat 12, adjusting screw(rod) 13, elastic compensating piece 14, latch hook.

The specific embodiment

From Fig. 1-Fig. 3 as can be seen: a kind of dumping car tipping bucket back door forced locking device, comprise latch hook 14, chain 10, adapter plate 9 and permanent seat 11, adapter plate 9 is welded on tipping bucket bottom half longeron 2, permanent seat 11 is installed on the crossbeam main longitudinal grider 1 on dumping car chassis, hinged latch hook 14 on adapter plate 9, boring installs adjusting screw(rod) 12 on the main riser of permanent seat 11, this adjusting screw(rod) 12 is connected with chain 10 again, chain: 10 are connected with latch hook 14 again, it is characterized in that: adapter plate 9 is the square plate of right elongation for the rectangular right lower quadrant of left part, and the right-hand member of this rectangular slab is circular arc and offers right centre hole on the right-hand member section of this rectangular slab, oblique being welded strengthened gusset 8 on adapter plate 9, to increase the intensity of adapter plate 9, with the top of these adapter plate 9 rectangular section and the corresponding welding of right-hand member of tipping bucket bottom half longeron 2; Latch hook pressing plate 4 assembly weldings between the latch hook otic placode 5 form latch hook 14 by the symmetrically arranged latch hook otic placode 5 in front and back with before and after being clipped in, this latch hook otic placode 5 is J-shaped, the gib head section that stretch on a riser section of being put by a left side and a underlying left side is formed, the left side of this riser section is arc surface, the left side of gib head section is semi circular surface, offer LC hole I at the left end of this gib head section, and the intersection of this riser section and gib head section is an arc transition, this latch hook pressing plate 4 also is J-shaped, the tilted plate section that its epimere is stretched for declivity left for straight plate section hypomere, the left end of this tilted plate section is a circular arc, offers LC hole II at the left end of this tilted plate section; The width of the straight plate section of latch hook pressing plate 4 is narrower than the width of latch hook otic placode 5 riser sections, before and after the straight plate section of latch hook pressing plate 4 is clipped between the riser section of latch hook otic placode 5 and be welded into one, and the tilted plate section that makes latch hook pressing plate 4 is positioned at the below of front and back latch hook otic placode 5 gib head sections, the lower left of the centre hole I before and after the centre hole II on the latch hook pressing plate 4 is positioned on the latch hook otic placode 5, install upper pin 6 in the centre hole I on front and back latch hook otic placode 5 to connect the upper end of chain 10, and on this upper pin 6 corresponding plain cushion and the spring cotter installed with the location, the right centre hole of wearing in the centre hole II on latch hook pressing plate 4 on bearing pin 7 and the adapter plate 9 is hinged, and on this lower bearing pin 7 corresponding plain cushion and the spring cotter installed with the location, be fulcrum with lower bearing pin 7 this moment, latch hook 14 is top-heavy shape, remain the trend of (cw revolution) to the right, make chain 10 be in tension; Elastic compensating piece 13 is installed at the position that is positioned at permanent seat 11 main riser bottoms on the adjusting screw(rod) 12 of chain 10 lower ends, this elastic compensating piece 13 can be rubber pad, elongation strain amount with the predeformation automatic compensation chain 10 that utilizes elastic compensating piece 13 at any time reaches the function that latch hook 14 closes casing back door 3 all the time;

When this forced locking device is installed, dumping car tipping bucket case is in full state, adjusting screw(rod) 12 makes chain 10 be in tension, and with elastic compensating piece 13 compression 10-15mm, form certain predetermincd tension, at this moment has very large predetermincd tension between latch hook 14 and the casing back door 3, guaranteed that casing back door 3 tight closes do not leak material, during work along with the lifting of tipping bucket case, distance between latch hook 14 and the permanent seat 9 reduces, and chain 10 is lax, and latch hook 14 is along with deadweight turns right, open naturally at casing back door 3, in latch hook 14 open modes, owing to be " top-heavy ", the sagging moment of latch hook 14 self is big, much larger than the sagging moment of chain 10, so can not cause latch hook 14 early than the sealed situation in casing back door 3; After the discharged, along with the tipping bucket case falls, the distance between latch hook 14 and the permanent seat 9 increases, chain 10 tensions, and latch hook 14 will cutting out it locking along with casing back door 3.Latch hook otic placode 5 adopts arc surface with the contact surface at casing back door 3, closing point is controlled in 1/3rd scopes of contact surface center and gets final product, reduce installation requirement, be convenient to install, closure is tightr, this latching device is automatically dumping car casing back door 3 and casing firm locking, automatic unlocking during unloading, casing back door 3 are opened voluntarily, because of installed elastic compensating piece 13 additional in device, automatic compensation the elongation strain of chain 10, reach the function at tight closure casing back door 3 all the time.

Claims

1. a dumping car tipping bucket back door forced locking device comprises latch hook (14), chain (10), adapter plate (9) and permanent seat (11), it is characterized in that:

A, adapter plate (9) are the square plate of right elongation for the rectangular right lower quadrant of left part, and the right-hand member of this rectangular slab is circular arc and offers right centre hole on the right-hand member section of this rectangular slab, go up oblique being welded at adapter plate (9) and strengthen gusset (8), the top of this adapter plate (9) rectangular section and the corresponding welding of right-hand member of tipping bucket bottom half longeron (2);

B, latch hook pressing plate (4) assembly welding between the latch hook otic placode (5) forms latch hook (14) by the symmetrically arranged latch hook otic placodes in front and back (5) with before and after being clipped in, this latch hook otic placode (5) is J-shaped, the gib head section that stretch on a riser section of being put by a left side and a underlying left side is formed, the left side of this riser section is arc surface, the left side of gib head section is semi circular surface, offer LC hole I at the left end of this gib head section, and the intersection of this riser section and gib head section is an arc transition, this latch hook pressing plate (4) also is J-shaped, the tilted plate section that its epimere is stretched for declivity left for straight plate section hypomere, the left end of this tilted plate section is a circular arc, offers LC hole II at the left end of this tilted plate section; The width of the straight plate section of latch hook pressing plate (4) is narrower than the width of latch hook otic placode (5) riser section, the straight plate section of latch hook pressing plate (4) be clipped in before and after the latch hook otic placodes (5) the riser section between and be welded into one, and the tilted plate section that makes latch hook pressing plate (4) is positioned at the below of front and back latch hook otic placode (5) gib head section, the lower left of the centre hole I before and after the centre hole II on the latch hook pressing plate (4) is positioned on the latch hook otic placode (5), install upper pin (6) in the centre hole I on front and back latch hook otic placodes (5) to connect the upper end of chain (10), and go up corresponding plain cushion and the spring cotter installed with the location at this upper pin (6), the right centre hole of wearing in the centre hole II on latch hook pressing plate (4) on bearing pin (7) and the adapter plate (9) is hinged, and goes up corresponding plain cushion and the spring cotter installed with the location at this lower bearing pin (7);

Elastic compensating piece (13) is installed at c, the position that is positioned at the main riser of permanent seat (11) bottom on the adjusting screw(rod) (12) of chain (10) lower end.

2. dumping car tipping bucket according to claim 1 back door forced locking device is characterized in that this this elastic compensating piece (13) is a rubber pad.