CN216105855U

CN216105855U - Compound radiator for forklift

Info

Publication number: CN216105855U
Application number: CN202121481728.2U
Authority: CN
Inventors: 钱正旺; 王平; 毕胜; 张冬林
Original assignee: Anhui Heli Co Ltd
Current assignee: Anhui Heli Co Ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2022-03-22
Anticipated expiration: 2031-06-29

Abstract

The utility model discloses a composite radiator for a forklift, which comprises a water radiator assembly and an oil radiator assembly, wherein the water radiator assembly and the oil radiator assembly are mutually independent, and one side of the water radiator assembly and one side of the oil radiator assembly are provided with a wind gathering cover assembly; the water radiator assembly comprises a water radiating core assembly, a left water chamber and a right water chamber which are fixedly connected to two sides of the water radiating core assembly, and inner cavities of the left water chamber and the right water chamber are communicated with an inner water channel of the water radiating core assembly; the oil radiator assembly includes oil heat dissipation core and fixed connection in the left grease chamber, the right grease chamber of oil radiator assembly both sides, the inner chamber of left grease chamber, right grease chamber with oil duct intercommunication in the oil heat dissipation core, this application engine cooling passes through the pipe belt radiator and realizes, can match different pipe belt fins, and because of its pipe belt occupation space of arranging is little, realizes bigger heat dispersion in the compact installation space of fork truck more easily than the plate fin formula structure.

Description

Compound radiator for forklift

Technical Field

The utility model relates to the technical field of forklift radiators, in particular to a composite radiator for a forklift.

Background

According to the working principle of the internal combustion engine of the internal combustion forklift, the radiator is required to be assembled on the whole forklift, the problem that the service performance of the whole forklift is affected due to the fact that the power of an engine is reduced due to insufficient heat dissipation is avoided, and meanwhile high-temperature aging of sealing elements is also avoided. Along with the development and the upgrading of the industry, the core body of the radiator mainly comprises a copper pipe piece, an aluminum pipe belt and an aluminum plate fin type structure. The pipe piece and the pipe belt type production efficiency are high, the cost is low, the strength is low, and the pipe piece and the pipe belt type production method are widely applicable to the industry of passenger cars. The forklift is used as a non-road vehicle, the driving road surface and the operation working condition of the forklift are far worse than those of an automobile, and the radiator for the forklift is mainly of a blowing type structure and is influenced by the low driving speed of the forklift and the coexistence of the forward and backward working conditions, so that higher requirements are provided for the heat radiation performance and the reliability of the radiator.

The plate-fin core body structure is characterized in that an internal heat dissipation channel of the plate-fin core body structure is composed of an upper partition plate, a lower partition plate, a left sealing strip, a right sealing strip and an internal fin. And outer fins are arranged between the heat dissipation channels to jointly form inner and outer channels of the heat dissipation core body.

The tube band and the tube sheet type core body structure are characterized in that an internal heat dissipation channel is formed by a single hollow tube, and a pipeline is connected with an external heat dissipation fin to form an internal channel and an external channel of the heat dissipation core body.

Current fork truck radiator structure mainly has following problem:

1. although the copper material has high heat conductivity coefficient, the copper tube and the main piece adopt a soldering process, the tensile strength of a solder is low, the heat dissipation efficiency of the assembly is low due to the influence of the solder, and the cost of the copper is high, so that the mass production is not facilitated.

2. An aluminum pipe belt type water radiator is mainly of a plastic assembly type structure, and a sealing strip is arranged between a plastic water chamber and a radiating core body. If use in the fork truck field, receive the abominable operational environment of fork truck, high temperature influence, very easily lead to the ageing radiator seepage problem of sealing strip.

3. The oil cooling of the forklift includes cooling oil such as transmission oil or hydraulic oil. The pulse pressure of the oil flow is 5-10 times of the pressure of the cooling water of the engine, and the aluminum pipe cannot bear larger pulse pressure of the oil. The existing tubular radiator is mainly characterized in that an aluminum alloy oil cooler is embedded in a water chamber, and the following defects exist:

oil cooling is pre-buried to the hydroecium, and the high temperature fluid has reduced the radiating efficiency to the heat radiation of engine cooling aquatic products in the hydroecium, and oil cooler thermal radiation produces the influence to the water dispersion theoretical calculation simultaneously.

Once the oil cooler cracks, the oil directly leaks to the water chamber and enters the engine along with the engine cooling water, and fatal damage is caused to the engine.

And the positions of the oil inlet and the oil outlet of the pre-buried oil cooler are fixed, so that the flexible arrangement of the size of the radiator is not facilitated.

3. The aluminum plate-fin radiator has a complex channel structure, needs pressure-maintaining brazing in a vacuum furnace, and has low production efficiency and high product cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a composite radiator for a forklift to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

a composite radiator for a forklift comprises a water radiator assembly and an oil radiator assembly, wherein the water radiator assembly and the oil radiator assembly are mutually independent, and one side of each of the water radiator assembly and the oil radiator assembly is provided with a wind collecting cover assembly;

the water radiator assembly comprises a water radiating core assembly, a left water chamber and a right water chamber which are fixedly connected to two sides of the water radiating core assembly, and inner cavities of the left water chamber and the right water chamber are communicated with an inner water channel of the water radiating core assembly;

the oil radiator assembly comprises an oil radiating core body, a left oil chamber and a right oil chamber which are fixedly connected to two sides of the oil radiator assembly, and inner cavities of the left oil chamber and the right oil chamber are communicated with oil passages in the oil radiating core body.

As a further scheme of the utility model: the water radiator assembly is communicated with a forklift engine cooling system, the oil radiator assembly is communicated with a forklift gearbox cooling system, and the oil radiator assembly is fixedly connected to the lower end of the water radiator assembly.

As a further scheme of the utility model: the water radiator assembly is characterized in that mounting frames are arranged at two ends of the water radiator assembly, a fan housing mounting frame used for fixing the fan gathering housing assembly is arranged on the water radiator assembly, and a mounting base is arranged at the lower end of the oil radiator assembly.

As a further scheme of the utility model: the water heat dissipation core assembly comprises a water heat dissipation core, the left end and the right end of the water heat dissipation core are respectively provided with a main sheet, and the upper end and the lower end of the water heat dissipation core are respectively provided with a protective plate.

As a further scheme of the utility model: the left water chamber comprises a left water chamber body, the left water chamber body is made of metal materials, the left water chamber body is fixedly connected with the water heat dissipation core body assembly through welding, and a water inlet pipe orifice and a water drain pipe orifice are formed in the left water chamber body.

As a further scheme of the utility model: the right water chamber comprises a right water chamber body, the right water chamber body is made of metal, the right water chamber body is fixedly connected with the water heat dissipation core body assembly through welding, and a water filling port and a water outlet pipe opening are formed in the right water chamber body.

As a further scheme of the utility model: the water heat dissipation core assembly lower extreme fixedly connected with mounting panel, oil heat dissipation core upper end fixedly connected with connects the backplate, connect backplate fixed connection in the mounting panel lower extreme.

As a further scheme of the utility model: the left side grease chamber includes left grease chamber body, be equipped with first oil pipe joint on the left side grease chamber body, right side grease chamber includes right grease chamber body, be equipped with second oil pipe joint on the right side grease chamber body, left side grease chamber body, right grease chamber body be the metal material and through the welding with the oily heat dissipation core.

As a further scheme of the utility model: the left oil chamber is located the left water chamber lower extreme, the right oil chamber is located the right water chamber lower extreme, left side hydroecium, right water chamber lower extreme all are equipped with the hydroecium baffle, left side oil chamber, right oil chamber upper end all are equipped with the oil chamber baffle, oil chamber baffle fixed connection in hydroecium baffle lower extreme.

As a further scheme of the utility model: the water heat dissipation core assembly is of an aluminum pipe belt type structure, and the oil heat dissipation core is of an aluminum plate-fin type structure.

Compared with the prior art, the utility model has the beneficial effects that:

1. this application engine cooling is realized through the pipe belt radiator, can match different pipe belt fins, and because of its pipe belt is arranged occupation space little, realizes bigger heat dispersion in the installation space of fork truck compactness more easily than the plate-fin structure.

2. Adopt welded connection between this application hydroecium and the water heat dissipation core, compare and mould hydroecium pipe strap formula radiator structure now, on the one hand the metal hydroecium is changeed the heat dissipation and is favorable to improving the heat-sinking capability, and on the other hand has avoidd the ageing infiltration problem that leads to of present system hydroecium sealing strip of moulding.

3. Hydroecium below and grease chamber top respectively are equipped with the baffle about this application, have solved the inside pre-buried oil cooler of current hydroecium, produce the spare part damage that fluid got into the engine and lead to along with the cooling water when the oil cooler fracture. Meanwhile, the heat radiation of the oil radiator to cooling water after the oil radiator is embedded into the water chamber is solved, and the heat radiation capability of the radiator is improved.

4. This application radiator assembly is because water radiator adopts the pipe strap formula structure, and on the same year whole aluminium system plate fin formula structure that adopts reduces by a wide margin product cost.

Drawings

Fig. 1 is a schematic structural view of a composite radiator for a forklift according to the embodiment;

FIG. 2 is a schematic view of a water radiator assembly according to the present embodiment;

fig. 3 is a schematic structural diagram of the water cooling core body in the embodiment;

fig. 4 is a schematic structural view of the left water chamber in the embodiment;

fig. 5 is a schematic structural view of the right water chamber in the embodiment;

FIG. 6 is a schematic view of an oil radiator assembly according to the present embodiment;

FIG. 7 is a schematic diagram of the structure of the left oil chamber in the present embodiment;

fig. 8 is a schematic diagram of the structure of the right oil chamber in the present embodiment.

In the figure: 1-water radiator assembly, 2-oil radiator assembly, 3-wind gathering cover assembly, 4-mounting frame, 5-mounting base, 6-wind cover mounting frame, 11-left water chamber, 12-right water chamber, 13-water heat dissipation core assembly, 14-mounting plate, 21-left oil chamber, 22-right oil chamber, 23-oil heat dissipation core, 24-connecting protective plate, 111-left water chamber body, 112-water chamber partition, 113-water inlet pipe orifice, 114-water outlet pipe orifice, 121-right water chamber body, 122-water filling orifice, 123-water outlet pipe orifice, 131-main sheet, 132-protective plate, 133-water heat dissipation core, 211-left oil chamber body, 212-oil chamber partition, 213-first oil pipe joint, 221-right oil chamber body, 222-second tubing joint.

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.

As shown in fig. 1, in this embodiment, a composite radiator for a forklift includes a water radiator assembly 1, an oil radiator assembly 2, and a wind collecting cover assembly 3, where the water radiator assembly 1 and the oil radiator assembly 2 are independent from each other, the wind collecting cover assembly 3 is disposed on one side of the water radiator assembly 1 and one side of the oil radiator assembly 2, both ends of the water radiator assembly 1 are provided with mounting brackets 4, the water radiator assembly 1 is provided with a wind collecting cover mounting bracket 6 for fixing the wind collecting cover assembly 3, the lower end of the oil radiator assembly 2 is provided with a mounting base 5, the water radiator assembly 1 is communicated with a forklift engine cooling system, the oil radiator assembly 2 is communicated with a forklift transmission cooling system, and the oil radiator assembly 2 is fixedly connected to the lower end of the water radiator assembly 1.

As shown in fig. 2 and 3, the water radiator assembly 1 includes a left water chamber 11, a right water chamber 12, and a water radiating core assembly 13. The body of the water cooling core assembly 13 is a water cooling core 133, the left and right sides of the body are respectively provided with a main sheet 131, the main sheet 131 is provided with an array type window, the water cooling core 133 is of an aluminum pipe belt type structure, two sides of each water channel respectively penetrate through the windows on the main sheet and are respectively communicated with the left water chamber 11 and the right water chamber 12, the upper and lower sides of the water cooling core 133 are respectively provided with a guard plate 132, and the water cooling core 133, the left and right main sheets 131, and the upper and lower guard plates 132 are connected together through brazing.

As shown in fig. 4 and 5, the left water chamber 11 includes a left water chamber body 111, which is provided with a water inlet pipe 113 and a water outlet pipe 114, the right water chamber 12 includes a right water chamber body 121, which is provided with a water outlet pipe 123, and the left water chamber body 111 and the right water chamber body 121 are both aluminum sheets with C-shaped cross sections; the left water chamber 11 and the right water chamber 12 are respectively provided with a water chamber partition plate 112 at the upper and lower parts, and together with the left water chamber body 111 and the right water chamber body 121, a left and right cubic water chamber cavity with one open side is formed, and the upper end of the right water chamber 12 is provided with a water filling opening 122. The left water chamber 11, the water heat dissipation core assembly 13 and the right water chamber 12 are connected together through argon arc welding.

When the engine works, the water inlet pipe orifice 113 is connected with the water outlet of the engine through a rubber pipe, and the water outlet pipe orifice 123 is connected with the water inlet of the engine through a rubber pipe. The engine cooling water is supplied into the right water chamber 12 through the water supply port 122 until the water radiator assembly 1 is filled. Under the driving of the engine water pump, the engine coolant circularly moves between the left water chamber 11 and the right water chamber 12, and when the engine coolant flows through the water channel in the water radiating core 133, the engine coolant is cooled by wind which flows through the water channel in the water radiating core 133 and is blown by the engine fan and is perpendicular to the surface of the water radiating core 133.

Because the water heat dissipation core 133 is an aluminum pipe belt structure, the production process is simple, and efficient welding can be performed through a continuous furnace. Meanwhile, the pressing force is very small when the pipe belt type core body is assembled, so that the structure of the outer fin aluminum belt can be adjusted at will to obtain excellent heat dissipation capacity. Therefore, the water heat dissipation core body assembly 13 can well meet the heat dissipation requirements of the engine under various severe working conditions of the internal combustion forklift. Compared with the aluminum plate fin type radiating core body, the welding equipment and the welding process of the aluminum pipe belt type radiating core body, whether the aluminum pipe, the aluminum belt or the core body assembly are simpler and more efficient, and the cost of the water radiating core body is reduced by more than 30 percent. Because the heat dissipation capacity of the forklift radiator assembly requires 6-10 times of the water dispersion compared with the oil dispersion, the cost of the forklift radiator assembly is directly reduced.

As shown in fig. 6, the oil radiator assembly 2 includes a left oil chamber 21, a right oil chamber 22, and an oil radiating core 23, and the oil radiating core 23 is an aluminum plate-fin structure. As shown in fig. 7 and 8, the left oil chamber 21 includes a left oil chamber body 211 on which a first oil pipe joint 213 is provided; the right oil chamber 22 comprises a right oil chamber body 221, a second oil pipe joint 222 is arranged on the right oil chamber body 221, the left oil chamber body 211 and the right oil chamber body 221 are made of C-shaped aluminum thin plates, a left oil chamber cavity and a right oil chamber cavity which are open at one side are respectively formed by the left oil chamber body 211, the right oil chamber body 221 and an oil chamber partition plate 212, the first oil pipe joint 213 and the second oil pipe joint 222 can be adjusted according to actual requirements on the oil chamber body 211 and the oil chamber body 221. As shown in fig. 6, the left oil chamber 21, the right oil chamber 22, and the oil heat dissipation core 23 are fixedly connected by argon arc welding.

As shown in fig. 1 and 6, the upper end of the oil heat dissipation core 23 is provided with a connection guard plate 24, and the lower end of the water heat dissipation core assembly 13 is provided with a mounting plate 14. The two sides of the water radiator assembly 1 are provided with a mounting frame 4, a fan cover mounting frame 6 and a mounting base 5 which is arranged left and right below the oil radiator assembly 2. The water radiator assembly 1 and the oil radiator assembly 2 are fixedly connected with the mounting plate 14 through the connecting guard plate 24 by bolts. The composite radiator for the forklift is fixedly connected with the whole forklift through the mounting frame 4 and the mounting base 5. The wind gathering cover assembly 3 is fixed on the water radiator assembly 1 through a wind cover mounting frame 6 by bolts.

When the forklift transmission works, the first oil pipe joint 213, the second oil pipe joint 222 and the forklift transmission are connected through rubber pipes. The transmission oil is cooled by the wind blowing by the engine fan in the direction perpendicular to the surface of the oil radiating core 23 while flowing through the oil passage inside the oil radiating core 23, and the cold wind from the engine fan is simultaneously blown to the surfaces of the water radiating core 133 and the oil radiating core 23.

A water chamber partition 112 is provided below the left water chamber 11 and the right water chamber 12, and an oil chamber partition 212 is provided above the left oil chamber 21 and the right oil chamber 22. Make mutual independence between left hydroecium 11 and left grease chamber 21, right hydroecium 12 and the right grease chamber 22, solved the independent oil cooler of current fork truck water tank from the design source pre-buried to the hydroecium inside, because of the engine cooling water that the oil cooler fracture leads to mixes the problem with fluid, improved the radiator reliability by a wide margin.

As shown in fig. 6, 7, and 8, the oil radiator assembly 2 further includes independent left and

right oil chambers

21 and 22 and an independent oil radiator core 23, so that the oil and the engine cooling water are not thermally radiated from each other. The heat dissipation capacity and the theoretical calculation accuracy of the radiator are effectively improved.

The utility model aims at two cooling modules of engine cooling water and transmission oil (or hydraulic oil) which are necessarily equipped for the diesel fork truck, the water radiator adopts an aluminum pipe belt type structure, the occupied space of the core body is small, the heat radiation performance is flexibly matched, the framework type design of the core body assembly meets the strength and performance requirements of the fork truck under severe working conditions, and meanwhile, the cost is greatly reduced. The oil radiator adopts an aluminum plate-fin structure, the structure is strong in bearing pressure, and the oil radiator and the water radiator are designed independently, so that the oil is prevented from entering the engine from the source to damage key parts; the water chamber body is welded with the core body by adopting an aluminum plate, so that the problem of aging of the plastic water chamber sealing strip is solved; meanwhile, the aluminum water chamber body has better heat dissipation capability than a plastic structure. The radiator with higher reliability and higher cost performance is provided for the cooling system of the diesel fork lift truck.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The composite radiator for the forklift is characterized by comprising a water radiator assembly (1) and an oil radiator assembly (2), wherein the water radiator assembly (1) and the oil radiator assembly (2) are mutually independent, and a wind collecting cover assembly (3) is arranged on one side of the water radiator assembly (1) and one side of the oil radiator assembly (2);

the water radiator assembly (1) comprises a water radiating core assembly (13) and a left water chamber (11) and a right water chamber (12) which are fixedly connected to two sides of the water radiating core assembly (13), and inner cavities of the left water chamber (11) and the right water chamber (12) are communicated with an inner water channel of the water radiating core assembly (13);

the oil radiator assembly (2) comprises an oil radiating core body (23) and a left oil chamber (21) and a right oil chamber (22) which are fixedly connected to two sides of the oil radiator assembly (2), and inner cavities of the left oil chamber (21) and the right oil chamber (22) are communicated with an oil passage in the oil radiating core body (23).

2. A compound radiator for a forklift as claimed in claim 1, wherein the water radiator assembly (1) is in communication with a forklift engine cooling system, the oil radiator assembly (2) is in communication with a forklift gearbox cooling system, and the oil radiator assembly (2) is fixedly connected to the lower end of the water radiator assembly (1).

3. The composite type radiator for the forklift as recited in claim 1, wherein both ends of the water radiator assembly (1) are provided with mounting brackets (4), the water radiator assembly (1) is provided with a fan housing mounting bracket (6) for fixing the fan housing assembly (3), and the lower end of the oil radiator assembly (2) is provided with a mounting base (5).

4. The composite type radiator for the forklift as recited in claim 1, wherein said water radiating core assembly (13) comprises a water radiating core (133), said water radiating core (133) has main fins (131) at both left and right ends, and said water radiating core (133) has protective plates (132) at both upper and lower ends.

5. The composite radiator for the forklift according to claim 1, wherein the left water chamber (11) comprises a left water chamber body (111), the left water chamber body (111) is made of metal, the left water chamber body (111) is fixedly connected with the water radiating core assembly (13) through welding, and a water inlet pipe orifice (113) and a water outlet pipe orifice (114) are formed in the left water chamber body (111).

6. The composite radiator for the forklift according to claim 1, wherein the right water chamber (12) comprises a right water chamber body (121), the right water chamber body (121) is made of metal, the right water chamber body (121) is fixedly connected with the water radiating core assembly (13) through welding, and a water filling port (122) and a water outlet pipe port (123) are formed in the right water chamber body (121).

7. A composite radiator for forklift truck according to claim 1, wherein the lower end of the water radiating core assembly (13) is fixedly connected with a mounting plate (14), the upper end of the oil radiating core (23) is fixedly connected with a connecting guard plate (24), and the connecting guard plate (24) is fixedly connected to the lower end of the mounting plate (14).

8. The composite radiator for the forklift according to claim 1, wherein the left oil chamber (21) comprises a left oil chamber body (211), a first oil pipe joint (213) is arranged on the left oil chamber body (211), the right oil chamber (22) comprises a right oil chamber body (221), a second oil pipe joint (222) is arranged on the right oil chamber body (221), and the left oil chamber body (211) and the right oil chamber body (221) are both made of metal and are welded with the oil radiating core (23).

9. A composite radiator for a forklift according to claim 1, wherein the left oil chamber (21) is located at the lower end of the left water chamber (11), the right oil chamber (22) is located at the lower end of the right water chamber (12), the lower ends of the left water chamber (11) and the right water chamber (12) are both provided with water chamber partition plates (112), the upper ends of the left oil chamber (21) and the right oil chamber (22) are both provided with oil chamber partition plates (212), and the oil chamber partition plates (212) are fixedly connected to the lower ends of the water chamber partition plates (112).

10. The complex radiator for the forklift as recited in claim 1, wherein said water radiating core assembly (13) is of an aluminum pipe-strip type structure, and said oil radiating core (23) is of an aluminum plate-fin type structure.