CN214728391U - Novel EF (electric discharge) oil cylinder lower bracket structure - Google Patents

Abstract

The utility model relates to a novel EF hydro-cylinder bottom bracket structure, including backup pad and spacing connecting rod, the parallel is provided with two risers in the backup pad, and it has the aperture axle sleeve to open on the riser, and aperture axle sleeve endotheca has the round pin axle, and spacing connecting rod includes connecting rod, lower connecting rod and spacing depression bar, and the winding has the spring of coiling that resets on the lower connecting rod, and spacing depression bar compresses spacing valve when following the rotation of spacing connecting rod. The utility model discloses a light weight and firm EF hydro-cylinder bottom bracket structure can provide good supporting effect for the EF hydro-cylinder, and alleviates the vehicle dead weight as far as possible when guaranteeing vehicle self intensity, has optimized stop device's installation, can satisfy the support and the spacing demand of novel EF hydro-cylinder simultaneously, finally reaches whole car and subtracts heavy purpose, also is favorable to fuel economy and reduces the emission simultaneously.

Description

Novel EF (electric discharge) oil cylinder lower bracket structure

Technical Field

The utility model belongs to the tipper hydraulic pressure field of lifting, concretely relates to novel EF hydro-cylinder bottom bracket structure.

Background

The dumper is a vehicle for automatically unloading cargoes by hydraulic or mechanical lifting, and comprises a chassis, a hydraulic lifting mechanism, a cargo compartment, a force taking device and the like, wherein a control system controls a piston rod to move, so that one side of a hopper is lifted by pushing the piston rod, and the height of the other side of the hopper is kept unchanged, thereby realizing the self-unloading of materials in the hopper. However, the hydraulic oil cylinder of the traditional hinge shaft structure is heavy in weight, a bracket for supporting the hydraulic oil cylinder is correspondingly manufactured by using a large amount of steel so as to achieve the purpose of stably fixing the oil cylinder, and the oil cylinder limiting device and the oil cylinder bracket are respectively installed and need to be manufactured with an independent steel support, so that the weight of the whole vehicle is further increased. According to the measurement and calculation of an authoritative department, the dead weight of the vehicle is reduced by 10%, the fuel efficiency can be improved by 6-8%, the fuel consumption is reduced by 10%, and the emission is reduced by 5-6%. Along with the continuous promotion of lightweight demand in present tipper field, traditional hydraulic cylinder has can't satisfy the market demand. The novel EF oil cylinder is lighter in weight and is a better choice for lightening the dumper, but an integrated lower bracket structure suitable for the EF oil cylinder is not available in the market.

Therefore, need to provide a novel light weight and firm EF hydro-cylinder bottom bracket structure to above-mentioned problem urgently, provide good supporting effect for the EF hydro-cylinder, and alleviate the vehicle dead weight as far as possible when guaranteeing vehicle self intensity, optimize stop device's installation, satisfy the support and the spacing demand of novel EF hydro-cylinder simultaneously, finally reach whole car and subtract the purpose of heavy, fuel economy, reduce the emission.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned not enough of prior art, provide a novel EF hydro-cylinder bottom bracket structure for solve traditional hydraulic cylinder and bracket weight overweight lightweight inadequately and stop device support independent erection further increase weight problem.

The utility model adopts the technical proposal that: the utility model provides a novel EF hydro-cylinder bottom bracket structure, includes backup pad and spacing connecting rod, the parallel is provided with two risers in the backup pad, it has the aperture axle sleeve to open on the riser, aperture axle sleeve endotheca has the round pin axle, spacing connecting rod's lower connecting rod passes and can rotate from the trompil on the riser, the connecting rod top is equipped with the connecting rod down and with last connecting rod at two fixed connection, the winding has the spring of restoring to the throne on the connecting rod down, a side end of spacing connecting rod is equipped with spacing depression bar, spacing depression bar can oppress the limit valve of fixing on the riser when following the rotation of spacing connecting rod.

Furthermore, the supporting plate is a steel plate with a U-shaped cross section and an extending edge, two screw holes are formed in the bottom of the supporting plate, the supporting plate is fixedly connected with the bottom of the vertical plate and the end portions of the two ends of the vertical plate, and the end portions of the two ends of the vertical plate are reinforced and fixed through reinforcing plates.

Furthermore, the middle part of the vertical plate is provided with an aperture shaft sleeve, and a pin shaft in the aperture shaft sleeve is used for fixing the lower hinge lug of the EF oil cylinder and can rotate in the aperture shaft sleeve.

Furthermore, the limiting pressure rod and the upper connecting rod rotate by taking the connecting rod below the upper connecting rod as a shaft, and the restoring coil spring on the lower connecting rod stores force when the limiting pressure rod and the upper connecting rod rotate.

Furthermore, an inclined U-shaped limiting valve seat is fixed on the outer side of the vertical plate, a screw hole is formed in the limiting valve seat, a limiting valve is fixed on the screw hole through a bolt, the inclination angle of the limiting valve is the same as that of the limiting valve seat, and the head of the limiting valve faces downwards towards the limiting pressure rod.

Furthermore, a drain hole is formed in the center of the bottom of the supporting plate between the two vertical plates.

Furthermore, a flange is arranged at one end of the pin shaft, a groove is formed at the other end of the pin shaft, and a check ring is arranged in the groove.

The utility model discloses possess following beneficial effect:

1. the utility model discloses by the support part of backup pad as whole lower carriage, the inside riser that uses two parallel arrangement in backup pad is as the bearing structure of the round pin axle of fixed EF hydro-cylinder lower hinge ear. Utilize reasonable structural configuration, practiced thrift steel use amount, reduced the whole weight of bottom bracket. And be provided with spacing connecting rod on the riser, and can be along with the rotation of EF hydro-cylinder and synchronous revolution, drive the spacing depression bar of one end installation and oppress the flexible head of spacing valve head, play and carry out spacing effect to lifting height, stop device and EF hydro-cylinder bottom bracket integral type structure do benefit to more and alleviate weight. The limiting connecting rod can also be automatically reset through the reset coil spring when the EF oil cylinder is reset, so that the limiting function can be automatically relieved. Therefore, the light weight requirement of the dumper is met by means of reasonable structure and integrated design, oil consumption is saved, and emission is reduced.

2. The cross section of the supporting plate is formed by bending a U-shaped steel plate with an extension edge, and the U-shaped integrated structure has higher supporting strength and a more stable mounting surface. Two bolt holes are formed in the bottom of the supporting plate and used for fixing the lower bracket on a dumper frame, and the bolt connection is convenient to detach and maintain the EF oil cylinder and the lower bracket in comparison with the traditional welding mode. The bottom and the both ends tip of two risers all with the bottom surface and the medial surface welded fastening of backup pad, increased the installation firm degree of riser, provide a more stable bottom bracket structure for the EF hydro-cylinder. Simultaneously, reinforcing plates are welded at the end parts of the two ends of the vertical plate, so that the vertical plate is prevented from being bent after being stressed, and the mechanical strength of the lower bracket is further improved.

3. The middle parts of the vertical plates are provided with aperture shaft sleeves, the aperture shaft sleeves are used for fixing the pin shafts and allowing the pin shafts to freely rotate, the pin shafts penetrate through the lower hinge lugs of the EF oil cylinder between the two vertical plates and are firmly fixed on the lower bracket, and meanwhile, the lower hinge lugs of the EF oil cylinder are allowed to rotate around the pin shafts along with the lifting of the oil cylinder.

4. The limiting connecting rod comprises an upper connecting rod and a lower connecting rod, the lower connecting rod penetrates through the two vertical plates and can rotate, the end parts of the upper connecting rod and the lower connecting rod are fixedly connected with the outer sides of the two vertical plates, and therefore the upper connecting rod can surround the lower connecting rod rotating structure. The lower hinge lug of the EF oil cylinder rotates when lifting, the upper connecting rod is pushed to synchronously rotate, the limiting pressure rod at one end of the limiting connecting rod rotates along with the lower hinge lug, and the limiting pressure rod presses the limiting valve arranged on the same side of the vertical plate to limit the lifting height. The limiting connecting rod and the oil cylinder lower bracket are integrated together, so that the using amount of bracket steel is greatly reduced, and the light weight requirement of the whole vehicle is further met.

5. Spacing disk seat welded fastening is on the riser with spacing depression bar homonymy, spacing disk seat is U type structure, and two end slope certain angle and riser welding together, it has two screw holes to open on the mid-plane of spacing disk seat for install spacing valve, spacing valve and the same angle of spacing disk seat slope, and spacing valve head is towards spacing depression bar, it can compress spacing valve when rotatory to be spacing depression bar, cause spacing valve action, then play limiting displacement to the EF hydro-cylinder.

6. A drain hole is formed in the center position between the two vertical plates at the bottom of the supporting plate, so that water is prevented from accumulating in the middle of the vertical plates when the dump truck operates outdoors in rainy weather, and mechanisms such as an EF oil cylinder lower hinge lug and a limiting connecting rod are prevented from being soaked by the accumulated water.

7. One end of the pin shaft is a flange, the other end of the pin shaft is provided with a groove, and a check ring is arranged in the groove, so that the pin shaft can be prevented from slipping from the aperture shaft sleeve and is convenient to disassemble and assemble.

Drawings

FIG. 1 is a schematic side view of the support plate of the present invention;

FIG. 2 is a front central sectional view of the support plate of the present invention;

FIG. 3 is a schematic view of the cross-sectional structure of the support plate of the present invention;

FIG. 4 is a schematic view of the sectional structure of the limiting valve seat and the limiting pressure rod of the present invention;

FIG. 5 is a schematic view of the sectional structure of the limiting connecting rod of the present invention;

figure 6 is the schematic diagram of the front center section structure of the limit connecting rod of the present invention.

In the figure: 1. a support plate; 2. a vertical plate; 3. a reinforcing plate; 4. a pin shaft; 5. a retainer ring; 6. a bore diameter shaft sleeve; 7. a limit valve; 8. a limiting valve seat; 9. an upper connecting rod; 10. a lower connecting rod; 11. a reset coil spring; 12. a limiting pressure lever; 13. and a limiting connecting rod.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-2, the utility model provides a technical solution: the utility model provides a novel EF hydro-cylinder bottom bracket structure, includes backup pad 1 and spacing connecting rod 13, the parallel is provided with two risers 2 in the backup pad 1, riser 2 passes through welded fastening with backup pad 1 to increase mechanical strength. All opened aperture axle sleeve 6 on two risers 2, 6 endotheca in the aperture axle sleeve have round pin axle 4, round pin axle 4 is used for fixed EF hydro-cylinder hinge ear down and can allow hydro-cylinder hinge ear down to rotate around round pin axle 4, provides a movable and enough firm stable lower bracket structure for the EF hydro-cylinder. The limiting connecting rod 13 comprises an upper connecting rod 9 and a lower connecting rod 10, a reset coil spring 11 is wound on the lower connecting rod 10, the central end of the reset coil spring 11 is fixed on the lower connecting rod 10, the outer end of the reset coil spring is fixed on a fixing rod below the lower connecting rod 10, and the limiting connecting rod 13 can be automatically restored to the original position when limiting is relieved. The utility model discloses a limiting connection valve 7, including limiting connection rod 13, limiting connection rod 12, limiting connection rod 13, EF hydro-cylinder, limiting connection rod 13, EF hydro-cylinder, EF connection rod, EF connection rod, EF hydraulic cylinder, EF hydraulic cylinder, EF cylinder, position and EF cylinder, position, EF are connected to one side end, position, EF, position, EF, and EF, position, and EF, position, and EF, EF.

The supporting plate 1 is a steel plate with a U-shaped cross section and an outer extension edge, and two screw holes are formed in the bottom of the steel plate and used for fixing the lower bracket on a dumper frame. The bottom of the supporting plate 1 is provided with a drain hole in the center between the two vertical plates 2, so that water accumulation in the lower bracket of the dump truck during working in outdoor rainy days can be prevented, and the lower hinge lug of the EF oil cylinder, the pin shaft 4 and the limiting connecting plate 13 are prevented from being soaked by the accumulated water. The bottom and the two end parts of the supporting plate 1 and the vertical plate 2 are fixedly connected through welding, and the connecting positions of the vertical plate 2 and the side wall of the supporting plate 1 are respectively added with a reinforcing plate 3, so that the mechanical strength of the vertical plate 2 is further improved. The middle part of riser 2 is provided with aperture axle sleeve 6, wear round pin axle 4 in the aperture axle sleeve 6, round pin axle 4 is used for fixed EF hydro-cylinder hinge ear down and can rotate in aperture axle sleeve 6, and EF hydro-cylinder hinge ear is placed between two risers 2, and round pin axle passes riser 2 and EF hydro-cylinder hinge ear down from one end, plays the effect of fixed EF hydro-cylinder. A groove is formed in one end of the pin shaft 4, a retainer ring 5 is arranged in the groove, the pin shaft 4 can be prevented from slipping when rotating along with the lower hinge lug of the EF oil cylinder, and the pin shaft structure with the retainer ring 5 is arranged, so that the dismounting and the maintenance are more convenient.

As shown in fig. 3-6, the limit connecting rod 13 includes an upper connecting rod 9 and a lower connecting rod 10, and the lower connecting rod 10 traverses through the openings of the two vertical plates 2 and can rotate to serve as a rotating shaft for the overall rotation of the limit connecting rod 13. The lower connecting rod 10 is sleeved with a return coil spring 11, an upper connecting rod 9 is arranged above the return coil spring 11, the two end parts of the upper connecting rod 9 and the lower connecting rod 10 are fixedly connected with the outer sides of the two vertical plates 2, and when the EF oil cylinder is lifted, the lower hinge lug of the EF oil cylinder rotates and simultaneously presses the upper connecting rod to rotate. The automatic lifting device is characterized in that a limiting pressure rod 12 is arranged on one side of the limiting connecting rod 13, the limiting pressure rod 12 and the upper connecting rod 9 rotate around the connecting rod 10 as a shaft and compress the limiting valve when rotating, the reset coil spring 7 stores force, the limiting pressure rod 12 compresses the limiting valve 7 and then triggers a limiting effect, a gas path in the limiting valve 7 is changed, and then the dumper control system stops injecting hydraulic oil into the EF oil cylinder, so that lifting is stopped, and a limiting effect is achieved. The outer side of the vertical plate 2 on the same side of the limiting pressure rod 12 is fixedly provided with a U-shaped limiting valve seat 8 which is obliquely arranged, the limiting valve seat 8 is provided with a screw hole, a limiting valve 7 is fixedly arranged on the screw hole through a bolt, the limiting valve seat 8 is obliquely inclined at a certain angle when being welded and fixed on the vertical plate 2, the inclination angle of the limiting valve 7 is the same as that of the limiting valve seat 8, so that the head of the limiting valve 7 is inclined downwards, the head of the limiting valve faces the limiting pressure rod 12, and when the limiting pressure rod 12 rotates, a compression device at the head of the limiting valve 7 can be pressed in time to trigger the action of the limiting valve.

In an embodiment, the utility model discloses use two bolt holes that the bolt passes through backup pad 1 bottom to fix on the tipper frame, the mounted position of backup pad 1 is corresponding with the position of hinge ear under the EF hydro-cylinder, respectively increase a reinforcing plate 3 in the position that two risers 2 are connected with backup pad 1 lateral wall, a support strength for strengthening riser 2, the trompil of hinge ear corresponds and link up under the EF hydro-cylinder that the hinge ear was placed between two risers 2 and two risers 2 under the EF hydro-cylinder, 4 recess of round pin axle are embedded into retaining ring 5, prevent 4 slippage of round pin axle, firmly fix the EF hydro-cylinder on the EF hydro-cylinder bottom bracket from this. A limit connecting rod 13 is arranged behind the pin shaft 4, and when the lower hinge lug of the EF oil cylinder rotates, the upper connecting rod 9 of the limit connecting rod 13 is pressed, so that the lower connecting rod can rotate around the lower connecting rods 10 fixed on the two vertical plates 2 along with the rotation of the lower hinge lug of the EF oil cylinder, and meanwhile, the limit pressing rod 12 at the end part is driven to rotate. A limiting valve seat 8 is welded and fixed on the outer side of one vertical plate 2 in an inclined mode, a screw hole is formed in the limiting valve seat 8 and used for fixing a limiting valve 7, the limiting valve 7 is installed in a mode that the head faces downwards and inclines at the same angle with the limiting valve seat 8, and the head of the limiting valve 7 is close to a limiting compression rod 12, so that the limiting compression rod 12 can press a telescopic head at the head of the limiting valve 7 when rotating.

When the dump truck needs to lift the carriage for unloading, a driver operates the dump truck to inject hydraulic oil into the EF oil cylinder, the EF oil cylinder extends under the pushing action of the hydraulic oil and enables the carriage to be lifted and raised slowly, and the EF oil cylinder rotates slowly around the pin shaft 4 by a certain angle while extending. Because the upper connecting rod 9 of the limit connecting rod 13 is closer to the mounting position of the lower hinge lug of the EF oil cylinder, the lower hinge lug of the EF oil cylinder can push the upper connecting rod 9 of the limit connecting rod 13 to synchronously rotate around the lower connecting rod 10, and simultaneously drive the reset coil spring 11 to rotate, so that the reset coil spring 11 stores force. The limiting pressure rod 12 arranged at the end part of the limiting connecting rod 13 rotates along with the limiting connecting rod 13, and presses the telescopic head at the head part of the limiting valve 7 when the limiting pressure rod rotates to a set position, the gas circuit in the valve changes when the telescopic head at the head part of the limiting valve 7 is pressed, and then the control system of the dump truck stops injecting hydraulic oil into the EF oil cylinder, so that the lifting is stopped, and the effect of limiting the lifting height is achieved. When a driver operates the dumper to enable the EF oil cylinder to retract into the carriage and fall back, the EF oil cylinder slowly and reversely rotates around the pin shaft 4, the lower hinge lug of the EF oil cylinder does not press the upper connecting rod 9 any more, the limiting connecting rod 13 gradually recovers to the initial position under the action of the accumulated restoring coil spring 11, the limiting pressure rod 12 at the end part of the limiting connecting rod 13 does not press the telescopic head at the head part of the limiting valve 7 any more, and all mechanisms return to the initial position. Therefore, the utility model discloses support and the limiting displacement of EF hydro-cylinder have been realized simultaneously to the EF hydro-cylinder bottom bracket structure of an integral type, and the lightweight demand of tipper is realized to the steel use amount of hydro-cylinder bracket that can significantly reduce and stop device support, can also fuel economy simultaneously, reduces the emission.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and modifications of the invention can be made, or equivalent changes and modifications can be made to some of the technical features of the embodiments.

Claims (7)

1. A novel EF oil cylinder lower bracket structure is characterized by comprising a support plate (1) and a limiting connecting rod (13), two vertical plates (2) are arranged in parallel in the supporting plate (1), an aperture shaft sleeve (6) is arranged on each vertical plate (2), the pin shaft (4) is sleeved in the aperture shaft sleeve (6), the lower connecting rod (10) of the limiting connecting rod (13) passes through the opening on the vertical plate (2) and can rotate, an upper connecting rod (9) is arranged above the lower connecting rod (10) and is fixedly connected with the end part of the upper connecting rod (9), a return coil spring (11) is wound on the lower connecting rod (10), a limit pressure rod (12) is arranged at one side end of the limit connecting rod (13), the limiting pressure lever (12) can press the limiting valve (7) fixed on the vertical plate (2) when rotating along with the limiting connecting rod (13).

2. The novel EF cylinder lower bracket structure of claim 1, which is characterized in that: the supporting plate (1) is a steel plate with a U-shaped cross section and an extending edge, two screw holes are formed in the bottom of the supporting plate (1), the supporting plate (1) is fixedly connected with the bottom and two end portions of the vertical plate (2), and the two end portions of the vertical plate (2) are reinforced and fixed through the reinforcing plate (3).

3. The novel EF cylinder lower bracket structure of claim 1, which is characterized in that: the middle part of the vertical plate (2) is provided with an aperture shaft sleeve (6), and a pin shaft (4) in the aperture shaft sleeve (6) is used for fixing an EF (electric discharge) oil cylinder lower hinge lug and can rotate in the aperture shaft sleeve (6).

4. The novel EF cylinder lower bracket structure of claim 1, which is characterized in that: the limiting pressure lever (12) and the upper connecting rod (9) rotate by taking the lower connecting rod (10) as a shaft, and the restoring coil spring (11) on the lower connecting rod (10) stores force during rotation.

5. The novel EF cylinder lower bracket structure of claim 1, which is characterized in that: an inclined U-shaped limiting valve seat (8) is fixed on the outer side of the vertical plate (2), a screw hole is formed in the limiting valve seat (8), a limiting valve (7) is fixed through a bolt by the screw hole, the inclination angles of the limiting valve (7) and the limiting valve seat (8) are the same, and the head of the limiting valve (7) faces downwards to a limiting pressure rod (12).

6. The novel EF cylinder lower bracket structure of claim 1, which is characterized in that: a drain hole is formed in the center of the bottom of the support plate (1) between the two vertical plates (2).

7. The novel EF cylinder lower bracket structure of claim 1, which is characterized in that: one end of the pin shaft (4) is provided with a flange, the other end of the pin shaft (4) is provided with a groove, and a check ring (5) is arranged in the groove.

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