JP2007163050A - Radiator frame structure and modular radiator having the structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a radiator frame structure that facilitates the replacement of radiator cores by preventing an outer frame from loosening; and a modular radiator having the structure. <P>SOLUTION: The outer frame 4 is formed by a lower tank 9 and a pair of pillar members 5a and 5b each with one end removably attached to the lower tank 9, and a plurality of radiator cores 2 with open front and back sides are stored and supported in the outer frame 4. A first bracket 6 integrated with an upper tank 8 is removably attached between the other ends of the pair of pillar members 5a and 5b. An upper part of each radiator core 2 is removably supported and fixed by a second bracket 7 removably attached to the outer frame 4 and first bracket 6. A lower end of each radiator core 2 is fitted and supported in the lower tank 9. A failed radiator core 2 can thus be replaced without loosening the outer frame 4. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a radiator frame structure in a modular radiator and a modular radiator using the radiator frame structure.

  Conventionally, in work vehicles such as construction machinery, civil engineering machinery, agricultural machinery, transport vehicles, traveling vehicles, etc., there are radiators that dissipate cooling water that cools the engine, oil coolers that dissipate hydraulic fluid that operates the actuator, etc. It is arranged.

  In particular, in work vehicles such as off-road vehicles and construction machines, there is a demand for a radiator that can sufficiently cool the engine, extend the life of cooling, and perform maintenance easily. As a result, a so-called modular radiator has been developed.

  In a modular radiator, a plurality of relatively small radiator cores are arranged in parallel adjacent to each other as individual modules, and are housed and supported in an exterior frame. If a malfunction such as leakage occurs in one of the radiator cores due to the use of the vehicle for a long period of time or due to other factors, it is possible to replace only the radiator core that caused the malfunction compared to the work to replace the entire radiator. Time and expense can be greatly reduced. This advantage is provided by modular radiators.

  As the modular radiator, an upper tank and a lower tank are provided at the upper and lower parts, respectively, and a modular radiator in which the upper and lower parts of a plurality of radiator cores are connected to the upper tank and the lower tank, respectively (see Patent Document 1) A modular radiator core having a pipe line and a down pipe line, in which a plurality of radiator cores having a configuration in which the up pipe line and the down pipe line are communicated in the upper part are arranged in parallel, and the lower part of each radiator core is connected to the manifold (See Patent Document 2) and the like.

  FIG. 8 shows a front view of the main part of a modular radiator described in Patent Document 1 as Conventional Example 1 in the present invention. As shown in FIG. 8, between the upper tank 31 and the lower tank 32, a pair of radiator cores 35, 35 ′ connected by an intermediate tank 33 are arranged up and down.

  A plurality of pairs of radiator cores 35, 35 ′ are arranged in parallel, and each pair of radiator cores 35, 35 ′ connected in parallel is connected to the upper tank 31 and the lower tank 32 at the upper end portion and the lower end portion, respectively. . Further, the upper radiator core 35 and the lower radiator core 35 ′ communicate with each other via the intermediate tank 33.

  The front view of the modular radiator described in Patent Document 2 is shown in FIG. 9 as Conventional Example 2 in the present invention. As shown in FIG. 9, a plurality of radiator cores 40 are arranged in parallel, and are housed and supported in an exterior frame constituted by side members 42 and 43, an upper tank holding portion 41, and a manifold 44 as a lower frame member. Has been.

  Each radiator core 40 includes a plurality of pipes 45 arranged in the vertical direction, and a tank half 46 is disposed on the top of the pipe 45. The plurality of pipes 45 are divided into two sets, and the cooling water heated by the engine flows from the lower side to the upper side of the several pipes 45 belonging to one set, and the number belonging to the other set. In the main pipe 45, the cooling water flowing into the tank half 46 from one set of pipes 45 flows downward from above.

Two flow paths are formed in the manifold 44, one set of pipes 45 is connected to a flow path to which cooling water heated by the engine is supplied, and the other set of pipes 45 is connected to the radiator core 40. It is connected with the flow path which discharges the cooling water cooled by.
The tank half body 46 of each radiator core 40 is supported by an upper tank holding portion 41 that connects the side member 42 and the side member 43.
Microfilm of Japanese Utility Model Publication No. 63-30769 (Japanese Utility Model Application No. 61-117475) JP-A-5-215475

  In the modular radiator described in Patent Document 1, even if an attempt is made to remove the radiator core 35 or the radiator core 35 ′ from which a malfunction has occurred among a plurality of radiator cores, The radiator core is removed and cannot be replaced.

In particular, if a failure occurs in the lower radiator core 35 ', the lower radiator core 35' in which the failure has occurred can be replaced unless the intermediate tank 33 is removed after removing together with the upper radiator core 35. I can't do it.
Moreover, if the upper tank 31 is removed, the upper end part of the connection board 34 which comprises the exterior frame will become a free end of cantilever support, and will be scattered. For this reason, the maintainability in a modular radiator will deteriorate.

  The modular radiator described in Patent Document 2 has a configuration without an upper tank. For this reason, between the two flow paths in the manifold 44, the cooling water heated by the engine and the cooling water cooled by the radiator come into contact with each other across the wall between the two flow paths. Therefore, heat is transferred through the wall due to the temperature difference between the two flow paths.

  In addition, heat is transferred between several pipes 45 belonging to one set and several pipes 45 belonging to the other set because the distance between them is short. For this reason, it becomes a cause of deteriorating the cooling efficiency as a radiator.

  Further, when replacing the failed radiator core 40, when the upper tank holder 41 is removed, the side members 42 and 43 are in a cantilevered state, and the side members constituting the exterior frame. 42 and 43 and each radiator core 40 in an exterior frame will be scattered. For this reason, maintainability as a modular radiator is deteriorated.

  In the present invention, the above-described problems are solved, the replacement work of the radiator core in the modular radiator is facilitated, and the radiator frame and each radiator core 40 in the exterior frame are separated in the replacement work of the radiator core. It is an object of the present invention to provide a radiator frame structure and a modular radiator having the same structure that can prevent the above-mentioned structure.

The object of the present invention can be achieved by the inventions described in claims 1 to 3.
That is, in the first aspect of the present invention, in the radiator frame structure, the exterior frame having an upper opening that can be accommodated and supported in parallel by opening the front and rear surfaces of the plurality of radiator cores, and the radiator core can be inserted and removed, and A position where the upper tank connected to the upper end of each of the radiator cores is detachably attached to the upper end of the exterior frame in a state where one side of the upper opening is closed, and is stored and supported, offset from the upper opening. A second bracket capable of supporting the upper end of each radiator core when detachably attached to the exterior frame and the first bracket so as to cover the upper opening and housed and supported. The main feature is that it is provided with a bracket.

Further, in the second invention of the present application, in addition to the configuration of the first invention, the main feature is that the configuration in which the first bracket is integrally fixed to the upper tank is specified.
Further, in the third invention of the present application, a plurality of radiator cores are housed and supported in the radiator frame structure having the configuration of the first invention or the second invention, and the lower ends of the plurality of radiator cores are connected to a lower tank that forms a part of the exterior frame. The structure of the modular radiator is made the other main feature.

  In the present invention, since the opened one side of the upper opening of the exterior frame is connected by the first bracket, it is possible to prevent the exterior frame and each radiator core in the exterior frame from being scattered even if the second bracket is removed. it can. In addition, since the upper tank can be supported at a position offset from the upper portions of the plurality of radiator cores, it is possible to easily replace the failed radiator core without removing the upper tank.

  Furthermore, the modular radiator can be constructed using an upper tank and a lower tank, so that the cooling water flows in one direction without causing a temperature difference between the pipes connecting the upper tank and the lower tank. Can do. Thereby, the cooling efficiency as a modular radiator can be improved.

  Preferred embodiments of the present invention will be specifically described below with reference to the accompanying drawings. As a description of the radiator frame structure according to the present invention, the configuration of a modular radiator having the same radiator frame structure will be described, and the description thereof will be omitted. Also, the shape and arrangement of the modular radiator described below will be described. In addition to the shape and arrangement configuration that can solve the problems of the present invention, the shape and arrangement configuration are employed as the radiator frame structure or the configuration of the modular radiator including the radiator frame structure according to the present invention. It is something that can be done. For this reason, this invention is not limited to the Example demonstrated below, A various change is possible.

  FIG. 1 shows a perspective view of a modular radiator 1 when the front side is viewed from the rear side of the vehicle. In FIG. 2, the perspective view of the modular radiator 1 when the rear side is seen from the vehicle front side is shown. 3 shows a rear view of the modular radiator 1, and FIG. 4 shows a side sectional view of the main part. In FIG. 4, the right side of FIG. 4 is the front direction of the vehicle.

  The modular radiator 1 houses and supports a plurality of radiator cores 2 arranged in parallel in the exterior frame 4. The shape of the radiator core 2 housed and supported in the exterior frame 4 is not limited to the shape in the illustrated example, and the size, dimensions, and the like can be appropriately selected as necessary.

  The exterior frame 4 includes a lower tank 9 and a pair of support members 5a and 5b having one end detachably attached to the lower tank 9. The exterior frame 4 has an upper opening formed in the upper part thereof, and the radiator core 2 can be inserted or extracted vertically from the upper opening. The exterior frame 4 is attached to a vehicle body frame or the like (not shown) of the vehicle.

  As shown in FIG. 3, the plurality of radiator cores 2 inserted from the upper opening can be accommodated in the exterior frame 4 with both front and rear surfaces opened. Further, each radiator core 2 can be positioned by receiving the pipe 11 of the lower tank 3 b formed at the lower end of each radiator core 2 in the female inlet port formed in the lower tank 9. A hermetic seal such as an O-ring is disposed on the outer peripheral portion of each pipe 11 or the inner peripheral surface of the female inlet port, and each radiator core 2 and the lower tank 9 can be connected in a liquid-tight state.

Packing 13 is disposed between adjacent radiator cores 2 to prevent each radiator core 2 from rolling due to vibrations from the vehicle body frame and to perform positioning between each radiator core 2. Yes.
Further, the pair of support members 5a and 5b are formed with grooves having a U-shaped cross section, and the side end surfaces of the radiator core 2 disposed at both ends of the exterior frame 4 are placed in the U-shaped grooves. Can be inserted and supported.

  As shown in FIG. 2, a first bracket 6 configured integrally with the upper tank 8 is attached to the upper end portion of the exterior frame 4 so as to connect the pair of support members 5 a and 5 b. In FIG. 5, the perspective view of the 1st bracket 6 comprised integrally with the upper tank 8 is shown.

  By attaching the 1st bracket 6 between a pair of support members 5a and 5b, it can prevent that each upper end part of a pair of support members 5a and 5b falls apart, and an opening part spreads. Thereby, when each radiator core 2 is accommodated in the exterior frame 4 or removed from the exterior frame 4, each radiator core 2 can be smoothly inserted and removed.

  As shown in FIG. 4, the lower end portion of the upper tank 8 and the upper tank 3 a formed at the upper end portion of each radiator core 2 housed and supported in the exterior frame 4 are connected via a connecting pipe 12. . In FIG. 4, a heat exchanger 20 other than a radiator such as an aftercooler, an air conditioner condenser, and an oil cooler is attached to the exterior frame 4 on the front side of the vehicle, that is, the right side of FIG. 4. A shroud 22 and the like are attached to the exterior frame 4 on the rear side of the vehicle.

  As a configuration of the first bracket 6, as shown in a perspective view of FIG. 6, the first bracket 6 may be configured separately from the upper tank 8 as a configuration including a flange portion 6 a that supports and fixes the upper tank 8. In this case, the flange portion 6a of the first bracket 6 is formed with a hole 18 through which the connecting pipe 12 connecting the upper tank 8 supported by the first bracket 6 and the upper tank 3a of each radiator core 2 is passed. It is desirable.

  Further, it is desirable to form holes 14a and 14b through which a suction port 15a for supplying warmed cooling water to the upper tank 8 and the like (see FIG. 1) are passed. In addition, the port 15b shown in FIG. 1 is a discharge port used when cooling water is uniformly filled without providing a bubble part in the modular radiator 1.

As shown in FIGS. 1, 3, and 4, the upper portions of the plurality of radiator cores 2 housed in the exterior frame 4 are prevented from coming out of the exterior frame 4 and are prevented from being detached. A second bracket 7 to be attached to the frame 4 is provided. The second bracket 7 has a shape as shown in the perspective view of FIG. 7, and an upright surface side is detachably attached to the first bracket 6 via a bolt 21 or the like. The bottom surface side of the second bracket 7 is detachably attached to the upper end portion of the exterior frame 4 via bolts 21 and the like.
Further, a plurality of reinforcing pieces 7 a are formed in the longitudinal direction of the first bracket 6 to improve the strength of the first bracket 6.

  Moreover, the upper end part of each radiator core 2 can be detachably attached to the bottom surface side of the second bracket 7 via bolts 21 and the like. As an attachment method for attaching the upright surface of the second bracket 7 to the first bracket 6, for example, a bolt head is attached to the first bracket 6 by welding or the like, and a hole formed in the upright surface of the second bracket 7 is used. A bolt attached to the first bracket 6 can be inserted, and a nut can be screwed into the inserted bolt and fixed.

  Further, a nut can be fixed to the first bracket 6 by welding or the like, or a plate state in which a female screw is cut can be fixed to the first bracket 6. Further, when the first bracket 6 having a separate structure from the upper tank 8 as shown in FIG. 6 is used, a bolt head or a nut can be fixed to the first bracket 6 by welding or the like. . Furthermore, the screw | thread with which a volt | bolt screws into the 1st bracket 6 can also be cut off.

  As shown in FIG. 7, the upright surface of the second bracket 7 is formed with a suction port 15 a of the upper tank 8 and a hole 24 through which a port 15 b for filling the upper tank 8 with cooling water is passed. The hole 23 formed on the bottom surface side of the second bracket 7 can reduce the weight of the second bracket 7 together with the hole 24, and confirms the mounting state of each radiator core 2 supported by the second bracket 7. Can function as a hole that can.

  As shown in FIG. 1, the discharge port 16 formed in the lower tank 9 is configured as a discharge port through which cooling water cooled by the modular radiator 1 is discharged, and is connected to the engine via a pump (not shown). Cooling water cooled by the modular radiator 1 can be supplied.

  In the modular radiator 1 of the present invention, when a malfunction occurs in a part of the radiator core 2 constituting the modular radiator 1, the connecting pipe 12 connected to the radiator core 2 to be removed and replaced. By removing, the radiator core 2 can be easily replaced. Moreover, since the upper ends of the pair of support members 5a and 5b of the exterior frame 4 are connected by the first bracket 6 even when the second bracket 7 is removed, the exterior frame 4 and each radiator core 2 that is housed and supported are also provided. Is prevented from falling apart.

  The present invention can apply the technical idea of the present invention to an apparatus or the like to which the technical idea of the present invention can be applied.

It is a perspective view of a modular radiator seen from the vehicles back. (Example) It is a perspective view of a modular radiator seen from the vehicles front. (Example) It is a rear view of a modular radiator. (Example) It is principal part side sectional drawing of a modular radiator. (Example) It is a perspective view of the 1st bracket. (Example) It is a perspective view of the 1st bracket by other composition. (Example) It is a perspective view of the 2nd bracket. (Example) It is a principal part front view of a modular radiator. (Conventional example 1) It is a front view of a modular radiator. (Conventional example 2)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Modular radiator, 2 ... Radiator core, 4 ... Outer frame, 5a, 5b ... Strut member, 6 ... 1st bracket, 7 ... 2nd bracket, ... Upper tank, 9 ... lower tank, 31 ... upper tank, 32 ... lower tank, 33 ... intermediate tank, 34 ... connecting plate, 35, 35 '... radiator core, 40 ... -Radiator core, 41 ... upper tank holding portion, 42, 43 ... side members, 44 ... manifold, 45 ... pipe, 46 ... half tank.

Claims (3)

An exterior frame having an upper opening that can be opened and supported in parallel by opening the front and rear surfaces of the plurality of radiator cores, and that allows the radiator cores to be inserted and removed;
The upper tank that is detachably attached to the upper end of the exterior frame with one side of the upper opening closed and connected to the upper end of each radiator core when stored and supported is offset from the upper opening. A first bracket that can be supported in position;
A second bracket that is detachably attached to the exterior frame and the first bracket so as to cover the upper opening, and that can support the upper end of each radiator core when housed and supported;
A radiator frame structure characterized by comprising:   The radiator frame structure according to claim 1, wherein the first bracket is integrally fixed to the upper tank. The radiator frame structure according to claim 1 or 2,
The radiator cores arranged in parallel are opened in the front and rear surfaces of each radiator core and stored in the exterior frame,
The upper tank supported by the first bracket and the upper end of each radiator core are connected,
The upper end portion of each radiator core that is stored and supported is supported by the second bracket,
A modular radiator, wherein a lower end portion of each radiator core is connected to a lower tank constituting a part of the exterior frame.

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