阅读说明：本技术 一种用于工程机械的内冷却液压油箱 (Internal cooling hydraulic oil tank for engineering machinery ) 是由 孙艳 刘伟善 刘尔方 许海烽 徐冰 于 2021-10-25 设计创作，主要内容包括：本发明公开了一种用于工程机械的内冷却液压油箱,包括箱体,所述箱体顶部设有开口,并在开口位置安装有盖板,所述盖板上设置有升降式支架,所述升降式支架穿过盖板,且其底端延伸至箱体内部,此用于工程机械的内冷却液压油箱,区别于现有技术,在实际使用过程中,由于其伸展式冷却管直接与工程机械的制冷系统连接,可利用工程机械制冷系统内的冷空气直接与高温液压油进行热交换,其温差大,降温能力显著,能够快速对液压油箱内的液压油进行降温冷却,保证工程机械的安全作业使用。(The invention discloses an internal cooling hydraulic oil tank for engineering machinery, which comprises a tank body, wherein an opening is formed in the top of the tank body, a cover plate is arranged at the position of the opening, a lifting support is arranged on the cover plate, the lifting support penetrates through the cover plate, and the bottom end of the lifting support extends into the tank body.)

1. The utility model provides an interior cooling hydraulic tank for engineering machine tool, includes box (1), its characterized in that: an opening (11) is formed in the top of the box body (1), a cover plate (2) is installed at the position of the opening (11), a lifting support (3) is arranged on the cover plate (2), the lifting support (3) penetrates through the cover plate (2), and the bottom end of the lifting support extends into the box body (1);

a bearing plate (4) is arranged at one end, located in the box body (1), of the lifting support (3), an extension type cooling pipe (5) is arranged on the bearing plate (4), two through holes (21) are formed in the cover plate (2), and two ends of the extension type cooling pipe (5) penetrate through the two through holes (21) respectively and are located on the outer side of the box body (1) and are connected with a refrigerating system of the engineering machinery;

and a driving part (6) for driving the extension-type cooling pipe (5) to extend and contract is arranged on the bearing plate (4).

2. An internally cooled hydraulic oil tank for construction machinery according to claim 1, characterized in that: the lifting support (3) comprises a guide rail seat (31) which is arranged on the cover plate (2) in a penetrating mode, a lifting column (32) is arranged in the guide rail seat (31) in a sliding mode, the bottom end and the top end of the lifting column (32) are located on the inner side and the outer side of the box body (1) respectively, and the bearing plate (4) is arranged at the bottom end of the lifting column (32);

the lifting column is characterized in that a top plate (33) is arranged at the top end of the lifting column (32), a driving cylinder (34) is arranged on the top plate (33), the output end of the driving cylinder (34) is connected with the cover plate (2), and the driving cylinder (34) drives the lower top plate (33) to reciprocate up and down to drive the lifting column (32) to lift and slide on the cover plate (2).

3. An internally cooled hydraulic oil tank for construction machinery according to claim 2, characterized in that: the extending type cooling pipe (5) comprises a plurality of corrugated pipes (52) which are equidistantly arranged on the bearing plate (4), the corrugated pipes (52) are connected in an end-to-end manner to form a communicated cooling pipe, two end parts of the cooling pipe are connected with guide pipes (51), the two guide pipes (51) on two sides respectively penetrate through holes (21) on two sides and are connected with a refrigerating system of the engineering machinery, and the outer wall of each guide pipe (51) is in sliding fit with the inner edge of each through hole (21);

two ends of the corrugated pipe (52) are connected with a straight-through pipe (51), and the straight-through pipes (51) are communicated through a connecting piece or through a U-shaped connecting pipe (54).

4. An internally cooled hydraulic oil tank for construction machinery according to claim 3, characterized in that: the driving part (6) comprises extension plates (61) which are arranged on two sides of the bearing plate (4) and parallel to the corrugated pipe (52), guide rings (62) are arranged on the extension plates (61), guide rods (63) are arranged in the guide rings (62) in a sliding mode, and the outer end portions and the inner end portions of the guide rods (63) are connected with an outer connecting rod (64) and an inner connecting plate (69) respectively;

each U-shaped connecting pipe (54) is provided with a connecting straight rod (65), the connecting straight rods (65) are connected with the outer connecting rods (64) on the same side, and the U-shaped connecting pipes (54) are driven to drive the corrugated pipes (52) to stretch when the guide rods (63) pull the outer connecting rods (64) to move;

the device also comprises a driving piece (66) which is arranged on the bearing plate (4) and is used for driving the guide rods (63) at the two sides to move.

5. An internally cooled hydraulic oil tank for construction machinery according to claim 4, characterized in that: the driving part (66) comprises a driving rod (661) with two ends respectively connected with the bearing plate (4) and the top plate (33) through bearings, a gear (662) is arranged on the outer side of the driving rod (661), racks (663) are respectively arranged on the two guide rods (63), and the two racks (663) are respectively positioned on two sides of the gear (662) and are respectively meshed with the gear (662); the outer end part of the rack (663) is connected with an inner connecting plate (69);

the device also comprises a driving motor (664), wherein the driving motor (664) is connected with the driving rod (661) to drive the driving rod to rotate so as to pull the rack (663) by using the gear (662) and drive the guide rod (63) to move.

6. An internally cooled hydraulic oil tank for construction machinery according to claim 5, characterized in that: the driving motor (664) is a hollow RV speed reducer, and the driving rod (661) is of a toothed bar structure and meshed with the output end of the driving motor (664).

7. An internally cooled hydraulic oil tank for construction machinery according to claim 6, characterized in that: slide rails (67) are arranged on the racks (663), upright posts (68) are arranged at the positions of two sides of the bearing plate (4), and the upright posts (68) at two sides slide in the slide rails (67) on the two racks (663) respectively.

8. An internally cooled hydraulic oil tank for construction machinery according to claim 7, characterized in that: the top plate (33) is a cross plate, and the two driving cylinders (34) and the two lifting columns (32) are symmetrically arranged;

and the number of the extension plates (61) on each side is also two, an inner connecting plate (69) is arranged between the two extension plates (61) on each side, and the racks (663) are respectively arranged on the inner connecting plates (69) on the corresponding side.

Technical Field

The invention relates to the technical field of internal cooling hydraulic oil tanks, in particular to an internal cooling hydraulic oil tank for engineering machinery.

Background

The construction machine is an important component of the equipment industry, and is generally called as an engineering machine for comprehensive mechanized construction engineering required by earth and stone construction engineering, pavement construction and maintenance, mobile hoisting, loading and unloading operation and various construction engineering.

In the daily operation use process of the engineering machinery, a hydraulic oil tank is basically required to be equipped to store oil required for ensuring the work of a hydraulic system, the hydraulic oil tank is generally composed of main parts such as a quick oil filling joint, an air filter, a thermometer, an oil level gauge, an oil absorption self-sealing device, a tank body, a blow-down valve and the like, and in the use process, the hydraulic oil body inside the hydraulic oil tank is often heated rapidly along with the increase of the use frequency and the use duration.

At present, the existing hydraulic oil tank is cooled basically by matching a fan with a radiator, the cooling effect is poor, especially when hydraulic oil is rapidly heated, the cooling efficiency is low, and the safe use of engineering machinery is seriously affected.

Disclosure of Invention

The present invention is directed to an internally cooled hydraulic oil tank for construction machinery, which solves the problems set forth in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: an internal cooling hydraulic oil tank for engineering machinery comprises a tank body, wherein an opening is formed in the top of the tank body, a cover plate is installed at the position of the opening, a lifting support is arranged on the cover plate, the lifting support penetrates through the cover plate, and the bottom end of the lifting support extends into the tank body;

a bearing plate is arranged at one end of the lifting support in the box body, an extension type cooling pipe is arranged on the bearing plate, two through holes are formed in the cover plate, and two ends of the extension type cooling pipe respectively penetrate through the two through holes to be located on the outer side of the box body and are connected with a refrigerating system of the engineering machinery;

and a driving part for driving the extension type cooling pipe to extend and contract is arranged on the bearing plate.

Preferably, the lifting support comprises a guide rail seat which is arranged on the cover plate in a penetrating mode, a lifting column is arranged in the guide rail seat in a sliding mode, the bottom end and the top end of the lifting column are located on the inner side and the outer side of the box body respectively, and the bearing plate is arranged at the bottom end of the lifting column;

the top end of the lifting column is provided with a top plate, a driving cylinder is arranged on the top plate, the output end of the driving cylinder is connected with the cover plate, and the driving cylinder drives the lower top plate to reciprocate up and down to drive the lifting column to lift and slide on the cover plate.

Preferably, the extended cooling pipe comprises a plurality of corrugated pipes which are equidistantly arranged on the bearing plate, the corrugated pipes are connected in a tail-ending manner to form a communicated cooling pipe, two end parts of the cooling pipe are connected with guide pipes, the two guide pipes on two sides respectively penetrate through holes on two sides and are connected with a refrigerating system of the engineering machinery, and the outer walls of the guide pipes are in sliding fit with the inner edges of the through holes;

two ends of the corrugated pipe are connected with a straight-through pipe, and the straight-through pipes are communicated through a connecting piece or through a U-shaped connecting pipe.

Preferably, the driving part comprises extension plates which are arranged on two sides of the bearing plate and are parallel to the corrugated pipe, guide rings are arranged on the extension plates, guide rods are arranged in the guide rings in a sliding manner, and the outer end and the inner end of each guide rod are respectively connected with an outer connecting rod and an inner connecting plate;

each U-shaped connecting pipe is provided with a connecting straight rod, and the connecting straight rods are connected with the outer connecting rods on the same side so as to drive the U-shaped connecting pipes to drive the corrugated pipes to stretch and retract when the guide rods pull the outer connecting rods to move;

the device also comprises a driving piece which is arranged on the bearing plate and used for driving the guide rods at the two sides to move.

Preferably, the driving part comprises a driving rod, two ends of the driving rod are respectively connected with the bearing plate and the top plate through bearings, a gear is arranged outside the driving rod, racks are arranged on the two guide rods, and the two racks are respectively positioned on two sides of the gear and are meshed with the gear; the outer end part of the rack is connected with the inner connecting plate;

the driving motor is connected with the driving rod to drive the driving rod to rotate so as to pull the rack by using the gear and drive the guide rod to move.

Preferably, the driving motor is a hollow RV reducer, and the driving rod is of a toothed bar structure and is meshed with the output end of the driving motor.

Preferably, the racks are provided with slide rails, the positions of two sides of the bearing plate are provided with upright posts, and the upright posts on two sides slide in the slide rails on the two racks respectively.

Preferably, the top plate is a cross plate, and the two driving cylinders and the two lifting columns are symmetrically arranged;

and the extension plates on each side are also provided with two, an inner connecting plate is arranged between the two extension plates on each side, and the racks are respectively arranged on the inner connecting plates on the corresponding sides.

Compared with the prior art, the invention has the beneficial effects that:

1. compared with the prior art, in the actual use process, the extensible cooling pipe is directly connected with the refrigerating system of the engineering machinery, cold air in the refrigerating system of the engineering machinery can be utilized to directly exchange heat with high-temperature hydraulic oil, the temperature difference is large, the cooling capacity is obvious, the hydraulic oil in the hydraulic oil tank can be rapidly cooled, and the safe operation and use of the engineering machinery are ensured.

2. According to the invention, the designed lifting support and the stretching type cooling pipe are lifted and stretched, so that the lifting support can be more uniformly contacted with hydraulic oil in the box body, and the area of contact and direct heat exchange is larger, thus the cooling rate of the lifting support to the hydraulic oil in the box body is effectively improved, and the quick cooling use is ensured.

3. The lifting and extending structure of the lifting support and the extending type cooling pipe can fold the assembly when cooling is not needed, and the oil storage volume of the oil tank is prevented from being occupied.

Drawings

FIG. 1 is a schematic view of the overall constriction of the present invention;

FIG. 2 is a schematic view of the overall extended structure of the present invention;

FIG. 3 is a schematic view of the present invention in partial cross-section of FIG. 1;

FIG. 4 is a schematic view of the present invention in partial cross-section of FIG. 2;

FIG. 5 is a schematic view of the present invention in partial cross-section of FIG. 4;

FIG. 6 is a schematic top plan view of FIG. 5 according to the present invention.

In the figure: 1-a box body; 11-opening; 2-cover plate; 21-a through hole; 3-lifting type support; 31-a rail seat; 32-a lifting column; 33-a top plate; 34-a driving cylinder; 4-a carrier plate; 5-an extended cooling tube; 51-a catheter; 52-a bellows; 6-a drive member; 61-an extension plate; 62-a guide ring; 63-a guide rod; 64-an outer link; 65-connecting straight rod; 66-a drive member; 661-driving rod; 662-gears; 663-rack; 664-driving the motor; 67-a slide rail; 68-upright column; 69-interconnector plates.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides an interior cooling hydraulic tank for engineering machine tool, includes box 1, and 1 tops of box are equipped with opening 11 to install apron 2 in opening 11 positions, guarantee that box 1 can open and can seal.

The cover plate 2 is provided with a lifting support 3, the lifting support 3 comprises a guide rail seat 31 which is arranged on the cover plate 2 in a penetrating way, a lifting column 32 is arranged in the guide rail seat 31 in a sliding way, the bottom end and the top end of the lifting column 32 are respectively positioned at the inner side and the outer side of the box body 1, and the bearing plate 4 is arranged at the bottom end of the lifting column 32;

the top end of the lifting column 32 is provided with a top plate 33, the top plate 33 is provided with a driving cylinder 34, the output end of the driving cylinder 34 is connected with the cover plate 2, and the driving cylinder 34 drives the lower top plate 33 to reciprocate up and down to drive the lifting column 32 to slide on the cover plate 2 in a lifting mode.

And an extension type cooling pipe 5 is arranged on the bearing plate 4, the extension type cooling pipe 5 comprises a plurality of corrugated pipes 52 which are equidistantly arranged on the bearing plate 4, the corrugated pipes 52 are connected in a tail-ending manner to form a communicated cooling pipe, two end parts of the cooling pipe are connected with guide pipes 51, the two guide pipes 51 on two sides respectively penetrate through the through holes 21 on two sides and are connected with a refrigerating system of the engineering machinery, and the outer walls of the guide pipes 51 are in sliding fit with the inner edges of the through holes 21.

It should be noted that, the refrigeration system of the engineering machine is specifically an air-conditioning compressor inside the engineering vehicle, and one of the two conduits 51 is communicated with an air outlet end of the air-conditioning compressor, and the other is communicated with air.

In addition, a driving part 6 for driving the extension cooling pipe 5 to extend and contract is further arranged on the bearing plate 4, the driving part 6 comprises extension plates 61 which are arranged on two sides of the bearing plate 4 and parallel to the corrugated pipe 52, guide rings 62 are arranged on the extension plates 61, guide rods 63 are arranged in the guide rings 62 in a sliding manner, and outer end portions and inner end portions of the guide rods 63 are respectively connected with an outer connecting rod 64 and an inner connecting plate 69;

each U-shaped connecting pipe 54 is provided with a connecting straight rod 65, and each connecting straight rod 65 is connected with the outer connecting rod 64 on the same side, so that when the guide rod 63 pulls the outer connecting rod 64 to move, the U-shaped connecting pipe 54 is driven to drive the corrugated pipe 52 to stretch.

The device also comprises a driving part 66 which is arranged on the bearing plate 4 and used for driving the guide rods 63 at the two sides to move, the driving part 66 comprises a driving rod 661, the two ends of which are respectively connected with the bearing plate 4 and the top plate 33 by using bearings, a gear 662 is arranged outside the driving rod 661, racks 663 are respectively arranged on the two guide rods 63, the two racks 663 are respectively positioned at the two sides of the gear 662 and are respectively meshed with the gear 662, and meanwhile, the outer end parts of the racks 663 are connected with the inner connecting plate 69;

the device further comprises a driving motor 664, wherein the driving motor 664 is connected with the driving rod 661 to drive the driving rod 661 to rotate so as to pull the rack 663 by using the gear 662 and drive the guide rod 63 to move.

The driving motor 664 is a hollow RV reducer, and the driving rod 661 is a rack structure, and is engaged with the output end of the driving motor 664.

It should be noted that the hollow RV reducer is composed of a front stage of a planetary gear reducer and a rear stage of a cycloidal pin gear reducer, and is developed on the basis of the traditional pin-pendulum planetary transmission, which not only overcomes the disadvantages of the common pin-pendulum transmission, but also ensures stable driving and use because of a series of advantages of small volume, light weight, large transmission ratio range, long service life, high precision, high strength, high rigidity, good stability, high efficiency, stable transmission and the like.

Further, all seted up slide rail 67 on the rack 663, all installed stand 68 in the position of loading board 4 both sides, the stand 68 of both sides slides in slide rail 67 on two racks 663 respectively, utilizes the design of slide rail 67 and stand 68 to effectively increase the stability of rack 663 in the removal in-process, guarantee the stable extension shrink of bellows 52 and use.

In addition, the top plate 33 is a cross plate, and two driving cylinders 34 and two lifting columns 32 are symmetrically arranged;

and the extension plates 61 on each side are also provided with two, an inner connecting plate 69 is arranged between the two extension plates 61 on each side, and the racks 663 are respectively arranged on the inner connecting plate 69 on the corresponding side, so that the whole stability of the device is effectively improved, unnecessary basic friction is avoided through the design of a symmetrical type, and the long-time continuous effective use of the device is ensured.

The cooling structure in its hydraulic tank of this application is including two states, shrink state and extension state promptly:

when the cooling is normally not performed, the cooling tank is in a contraction state, when the cooling tank is cooled, the driving cylinder 34 is driven to work and contract to pull the top plate 33 to press downwards, meanwhile, the lifting column 32 moves up and down on the cover plate 2 to send the lower corrugated pipe 52 to the middle position of the tank body 1, and the corrugated pipe 52 is soaked in oil; meanwhile, the driving motor 664 works (works in a forward direction) to drive the driving rod 661 to rotate continuously, the gear 662 is used for driving the two racks 663 to eject reversely synchronously, the inner connecting plate 69 is further driven, the guide rod 63 is used for extending the corrugated pipe 52, and at the moment, the contraction state is switched to the extension state; one of the two guide pipes 51 is communicated with the air outlet end of the air-conditioning compressor, the other guide pipe is communicated with the air, when the cold air flows through the corrugated pipe 52, the heat exchange is carried out with the external high-temperature hydraulic oil, and the extension of the corrugated pipe can improve the cooling path length of the cold air in the cooling pipe and increase the heat exchange area so as to carry out effective internal cooling;

when the temperature of the hydraulic oil is reduced to a reasonable range, the driving motor 664 rotates in a reverse working mode to drive the cylinder 34 to extend, the action processes are completely reversed, so that the corrugated pipe 52 moves upwards and contracts at the same time, the expansion state is switched to the contraction state, and the corrugated pipe is collected to avoid occupying the oil storage volume of the oil tank.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.