CN117307301A - Cooling system of fork truck internal combustion engine - Google Patents
Cooling system of fork truck internal combustion engine Download PDFInfo
- Publication number
- CN117307301A CN117307301A CN202311182880.4A CN202311182880A CN117307301A CN 117307301 A CN117307301 A CN 117307301A CN 202311182880 A CN202311182880 A CN 202311182880A CN 117307301 A CN117307301 A CN 117307301A
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- Prior art keywords
- rod
- cooling
- clamping
- pipe body
- block
- Prior art date
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- 238000001816 cooling Methods 0.000 title claims abstract description 50
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 114
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000000110 cooling liquid Substances 0.000 claims abstract description 38
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 27
- 230000000903 blocking effect Effects 0.000 claims description 15
- 238000001125 extrusion Methods 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 9
- 239000002826 coolant Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000008602 contraction Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/20—Cooling circuits not specific to a single part of engine or machine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
- F01P11/0276—Draining or purging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
- F01P11/029—Expansion reservoirs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
- F01P5/12—Pump-driving arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention relates to the field of forklift cooling, in particular to a cooling system of a forklift internal combustion engine, which comprises an engine shell, wherein a driving wheel for transmission is arranged on the engine shell, a driven wheel is arranged on one side of the driving wheel, the driven wheel synchronously rotates along with the driving wheel, a water pump is connected to the driven wheel, and a first connecting pipe and a second connecting pipe are connected to the water pump. The cooling mechanism can be used for cooling the cooling liquid discharged from the interior of the engine shell in a liquid exchange mode, and the cooling liquid in the cooling mechanism can pass through the liquid exchange mechanism; when the cooling liquid in the engine shell is changed into liquid through the cooling mechanism and can not cool the inside of the engine shell, the cooling mechanism can cool and dissipate heat through the cooling liquid through the liquid changing mechanism after the cooling liquid enters the liquid changing mechanism, and the cooled cooling liquid can flow back to the inside of the engine shell from the one-way valve, so that the engine shell is cooled.
Description
Technical Field
The invention relates to the field of forklift cooling, in particular to a cooling system of a forklift internal combustion engine.
Background
When the existing forklift is used, the engine needs to be cooled, so that the normal use of the forklift can be ensured, and when the existing forklift cooling system is cooled, cooling liquid flowing into and out of the engine is adjusted through the thermostat, but in the adjusting process, the adjusting range of the thermostat is small, and mainly, the cooling effect of the cooling system is poor when the cooling system is used because the liquid heat exchange rate in the adjusting process is low.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a cooling system of a forklift internal combustion engine.
The technical scheme adopted for solving the technical problems is as follows: the cooling system of the forklift internal combustion engine comprises an engine shell, wherein a driving wheel for transmission is arranged on the engine shell, a driven wheel is arranged on one side of the driving wheel, a water pump is arranged at one end of the driven wheel, the driven wheel synchronously rotates along with the driving wheel, the driven wheel is connected with the water pump, a first connecting pipe and a second connecting pipe are connected to the water pump, the first connecting pipe is connected to the engine shell, and the end part of the second connecting pipe is connected to a cooling mechanism; the cooling mechanism is connected with a liquid exchange mechanism, and the liquid exchange mechanism is connected to the engine shell through a one-way valve.
Preferably, the driving wheel is connected with the driven wheel through a belt, a tensioning wheel is arranged below the belt and arranged on the engine shell, a second guide pipe is arranged on the engine shell, a first guide pipe is arranged on the second guide pipe and connected on the lower pipe body, and the second guide pipe is connected on the one-way valve.
Preferably, the cooling mechanism comprises a bracket arranged at one side of the engine shell, a guide plate is arranged on the bracket, and an upper pipe body and a lower pipe body are arranged on the bracket; a fan is arranged on one side of the guide plate, an opening and closing mechanism is arranged in the upper pipe body, a blocking mechanism is arranged in the lower pipe body, the blocking mechanism is connected with the opening and closing mechanism penetrating through the inside of the support, a guide mechanism is arranged on one side of the opening and closing mechanism, and the guide mechanism is used for blocking the flow of cooling liquid; when the opening and closing mechanism is opened, the blocking mechanism is sealed; when the plugging mechanism is opened, the opening and closing mechanism is closed.
Preferably, the opening and closing mechanism comprises a telescopic piece arranged in the upper pipe body, a telescopic rod is arranged on the telescopic piece, a rotating rod is connected to the end part of the telescopic rod in a sliding manner, a rotating pin is connected to the rotating rod in a rotating manner, the rotating pin is fixed on the inner wall of the upper pipe body, and a clamping assembly is arranged on one side of the rotating rod and used for clamping the flow guiding mechanism to enable the flow guiding mechanism to seal the third pipe; the rotary rod is connected with a pushing assembly, and the pushing assembly is used for pushing the plugging mechanism to open and close.
Preferably, the block assembly comprises a supporting block arranged on the inner wall of the upper pipe body, the supporting block is abutted against a rotating rod arranged on one side of the supporting block, a rotating groove is formed in the inner wall of the upper pipe body, an extrusion rod is connected to the supporting block, a first clamping block is connected to the extrusion rod, a spring is arranged at the bottom of the extrusion rod, and the spring is arranged in the inner wall of the upper pipe body.
Preferably, the pushing assembly comprises a supporting rod arranged inside the support, the supporting rod is movably connected with the rotating rod, the supporting rod moves along with the rotation of the rotating rod, a moving block is arranged at the bottom of the supporting rod, a guide groove is formed in the moving block, a connecting rod is arranged on one side of the moving block, a guide column is arranged on the connecting rod, and the guide column slides in the guide groove.
Preferably, the plugging mechanism comprises a pull rope arranged in the bracket, the pull rope is connected to the rotating rod, a sliding groove is formed in the lower pipe body, a sliding block is arranged in the sliding groove in a sliding mode, a cover plate is arranged on the sliding block, a water outlet is formed in the lower pipe body, and the cover plate is used for covering and draining water; the cover plate is provided with a clamping groove, a clamping rod is arranged below the clamping groove and is clamped with the clamping groove, a stop lever is arranged on the clamping rod, a third elastic piece is arranged below the stop lever, and the end part of the clamping rod is connected with a pull rope.
Preferably, the guiding mechanism comprises a sealing block arranged on the inner wall of the upper pipe body, a sealing plate matched with the sealing block is arranged on the sealing block, a second clamping block is arranged at the bottom of the sealing plate, a water inlet groove is arranged on the second clamping block, and a first clamping block for blocking the water inlet groove is arranged below the water inlet groove.
Preferably, the liquid exchange mechanism comprises an outer box body arranged on one side of the support, an upper box and a lower box are arranged in the outer box body, a telescopic sleeve is arranged between the upper box and the lower box, a water outlet pipe is arranged above the upper box, and a first elastic piece for pushing the lower box to move upwards is arranged at the bottom of the lower box.
The beneficial effects are that:
(1) The cooling mechanism can be used for cooling the cooling liquid discharged from the interior of the engine shell in a liquid exchange mode, and the cooling liquid in the cooling mechanism can pass through the liquid exchange mechanism; when the cooling liquid in the engine shell is changed into liquid through the cooling mechanism and can not cool the inside of the engine shell, the cooling mechanism can cool and dissipate heat through the cooling liquid through the liquid changing mechanism after the cooling liquid enters the liquid changing mechanism, and the cooled cooling liquid can flow back to the inside of the engine shell from the one-way valve, so that the engine shell is cooled, and the cooling efficiency is high.
(2) The upper pipe body, the lower pipe body and the guide plate can be supported by the arranged support, and when the cooling liquid in the lower pipe body is input into the engine shell through the first guide pipe to form reflux, the heat preservation effect can be provided for the engine when the weather is cold; when the weather is hotter, the inside coolant liquid of body inside enters into the inside of last body down, and rethread sets up the mechanism that opens and shuts on last body and opens guiding mechanism, and simultaneously, the mechanism that opens and shuts drives shutoff mechanism and remove for shutoff mechanism seals first pipe, and then, the coolant liquid just enters into the inside of going up the case from the third pipe, and the work is offered to the fan when guiding mechanism opens, and the fan can dispel the heat to the guide plate, makes the radiating effect better.
(3) The cooling liquid can enter the upper box through the arranged liquid exchange mechanism, the cooling liquid is exchanged in the upper box, so that the mixed cooling liquid enters the engine shell through the one-way valve, heat in the engine shell is taken away, the cooling liquid heats up in the heat exchange process, the lower box body expands and moves downwards, the first elastic piece contracts, and when the lower box body moves upwards, the first elastic piece jacks up the lower box body upwards; the cooling liquid stored between the upper box and the lower box is more, so that the efficiency of the liquid exchange mechanism is higher during heat exchange, and the cooling effect of the cooling liquid is better.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic view of the overall structure provided by the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic illustration of the internal connections of the present invention;
FIG. 4 is an enlarged schematic view of the structure of FIG. 3 at A;
FIG. 5 is an enlarged schematic view of the structure at B in FIG. 3;
FIG. 6 is a schematic illustration of the connection of the plugging mechanism of the present invention;
fig. 7 is a schematic connection diagram of the abutment and the first fixture block of the present invention.
In the figure: 1. an engine housing; 11. a driving wheel; 12. driven wheel; 13. a tensioning wheel; 14. a water pump; 15. a first connecting pipe; 16. a second connecting pipe; 18. a first conduit; 19. a second conduit; 101. a third conduit; 2. a cooling mechanism; 21. a lower pipe body; 22. an upper tube body; 23. a bracket; 24. a deflector; 25. a fan; 3. a liquid exchange mechanism; 31. an outer case; 32. a first elastic member; 33. lower box; 34. a telescopic sleeve; 35. loading the box; 36. a water outlet pipe; 4. a one-way valve; 5. an opening and closing mechanism; 51. a telescoping member; 52. a telescopic rod; 53. a rotating rod; 531. a rotating groove; 54. a rotary pin; 55. abutting blocks; 555. an extrusion rod; 556. a spring; 56. a first clamping block; 57. a supporting rod; 58. a moving block; 59. a connecting rod; 510. a guide post; 511. a guide groove; 6. a diversion mechanism; 61. a sealing plate; 62. a sealing block; 63. a second clamping block; 64. a water inlet tank; 65. a second elastic member; 7. a plugging mechanism; 71. a cover plate; 72. a slide block; 73. a clamping groove; 74. a clamping rod; 75. a stop lever; 76. a third elastic member; 77. a pull rope; 78. a water outlet; 79. and a sliding groove.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
In one embodiment, referring to fig. 1-7 of the specification, a cooling system of a forklift internal combustion engine according to the present invention includes an engine housing 1, a driving wheel 11 for transmission is provided on the engine housing 1, a driven wheel 12 is provided on one side of the driving wheel 11, a water pump 14 is provided on one end of the driven wheel 12, the driven wheel 12 rotates synchronously with the driving wheel 11, the driven wheel 12 is connected with the water pump 14, a first connecting pipe 15 and a second connecting pipe 16 are connected to the water pump 14, the first connecting pipe 15 is connected to the engine housing 1, and an end of the second connecting pipe 16 is connected to the cooling mechanism 2; the cooling mechanism 2 is connected with a liquid exchange mechanism 3, and the liquid exchange mechanism 3 is connected to the engine housing 1 through a one-way valve 4.
The driving wheel 11 is connected with the driven wheel 12 through a belt, a tensioning wheel 13 is arranged below the belt, the tensioning wheel 13 is arranged on the engine shell 1, a second guide pipe 19 is connected to the engine shell 1, a first guide pipe 18 is arranged on the second guide pipe 19, the first guide pipe 18 is connected to the lower pipe body 21, and the second guide pipe 19 is connected to the one-way valve 4.
The cooling mechanism 2 is provided to exchange and cool the coolant discharged from the inside of the engine case 1, and the coolant in the cooling mechanism 2 is allowed to pass through the liquid exchange mechanism 3; the driven wheel 12 is adjustably arranged on the forklift truck, the driven wheel 12 is used for driving the pump body to pump cooling liquid into the inside of each pipeline, when cooling liquid in the engine housing 1 is changed into liquid through the cooling mechanism 2 and can not cool the inside of the engine housing 1, the cooling mechanism 2 can cool and dissipate heat through the liquid changing mechanism 3 after the cooling liquid enters the liquid changing mechanism 3, the check valve 4 prevents the cooling liquid from directly flowing back to the inside of the liquid changing mechanism 3 from the second guide pipe without passing through the cooling mechanism 219, and the cooled cooling liquid can flow back to the inside of the engine housing 1 from the check valve 4, so that the engine housing 1 is cooled.
In one embodiment, referring to fig. 1-3 of the specification, the cooling mechanism 2 includes a bracket 23 disposed on one side of the engine housing 1, a baffle 24 is disposed on the bracket 23, and an upper pipe body 22 and a lower pipe body 21 are disposed on the bracket 23; a fan 25 is arranged at one side of the guide plate 24, an opening and closing mechanism 5 is arranged in the upper pipe body 22, a blocking mechanism 7 is arranged in the lower pipe body 21, the blocking mechanism 7 is connected with the opening and closing mechanism 5 penetrating through the inside of the support 23, a guide mechanism 6 is arranged at one side of the opening and closing mechanism 5, and the guide mechanism 6 is used for blocking the flow of cooling liquid; when the opening and closing mechanism 5 is opened, the blocking mechanism 7 is sealed; when the plugging mechanism 7 is opened, the opening and closing mechanism 5 is closed.
The upper pipe body 22, the lower pipe body 21 and the guide plate 24 can be supported by the support 23, and the cooling liquid in the lower pipe body 21 is input into the engine shell 1 through the first guide pipe 18 to form reflux, so that the heat preservation effect can be provided for the engine when the weather is cold; when the weather is hotter, the inside coolant liquid of lower body 21 enters into the inside of last body 22, and rethread setting up the mechanism that opens and shuts 5 on last body 22 opens guiding mechanism 6, and simultaneously, mechanism that opens and shuts 5 drive shutoff mechanism 7 removes for shutoff mechanism 7 seals first pipe 18, and then, the coolant liquid just enters into the inside of last case 35 from third pipe 101, and the work is offered to fan 25 when guiding mechanism 6 opens, and fan 25 can dispel the heat to guide plate 24, makes the radiating effect better.
In one embodiment, referring to fig. 3-4 and 6-7 of the specification, the opening and closing mechanism 5 includes a telescopic member 51 disposed inside the upper tube 22, a telescopic rod 52 is disposed on the telescopic member 51, a rotating rod 53 is slidably connected to an end of the telescopic rod 52, a rotating pin 54 is rotatably connected to the rotating rod 53, the rotating pin 54 is fixed on an inner wall of the upper tube 22, and a clamping component is disposed on one side of the rotating rod 53 and is used for clamping the guiding mechanism 6 to seal the third conduit 101; a pushing component is connected to the rotating rod 53 and is used for pushing the plugging mechanism 7 to open and close.
The clamping assembly comprises a supporting block 55 arranged on the inner wall of the upper pipe body 22, the supporting block 55 is in contact with a rotating rod 53 arranged on one side of the supporting block 55, a rotating groove 531 is formed in the inner wall of the upper pipe body 22, an extrusion rod 555 is connected to the supporting block 55, a first clamping block 56 is connected to the extrusion rod 555, a spring 556 is arranged at the bottom of the extrusion rod 555, and the spring 556 is arranged in the inner wall of the upper pipe body 22.
The pushing assembly comprises a supporting rod 57 arranged inside the support 23, the supporting rod 57 is movably connected with the rotating rod 53, the supporting rod 57 moves along with the rotation of the rotating rod 53, a moving block 58 is arranged at the bottom of the supporting rod 57, a guide groove 511 is formed in the moving block 58, a connecting rod 59 is arranged on one side of the moving block 58, a guide column 510 is arranged on the connecting rod 59, and the guide column 510 slides in the guide groove 511.
The temperature of the cooling liquid rises after flowing in the engine housing 1, when the expansion piece 51 is heated, the gas in the expansion piece is expanded, so that the expansion rod 52 is pushed to move, and the expansion piece 51 is filled with the gas which can be heated and expanded, for example, ammonia water is filled in the expansion piece 51; when the telescopic rod 52 moves, the telescopic rod 52 pushes the rotating rod 53 to rotate, when the rotating rod 53 rotates around the rotating pin 54, the end part of the rotating rod 53 can be extruded on the supporting block 55, the supporting block 55 is extruded to drive the extrusion rod 555 to move, the extrusion rod 555 drives the compression spring 556 when moving, and the extrusion rod 555 drives the first clamping block 56 to move downwards when moving; when the rotating rod 53 rotates, the rotating rod 53 rotates along the direction of the rotating groove 531, the rotating rod 53 pushes the supporting rod 57 to move downwards, the supporting rod 57 moves downwards to drive the moving block 58 to move downwards, the moving block 58 drives the guide groove 511 to move downwards, the guide groove 511 moves downwards to push the guide post 510 to move, the guide post 510 moves to drive the connecting rod 59 to move, and the connecting rod 59 pushes the plugging mechanism 7 to move.
In one embodiment, referring to fig. 3 and 5-6 of the specification, the plugging mechanism 7 includes a pull rope 77 disposed inside the bracket 23, the pull rope 77 is connected to the rotating rod 53, a sliding groove 79 is disposed on the lower pipe body 21, a sliding block 72 is slidably disposed inside the sliding groove 79, a cover plate 71 is disposed on the sliding block 72, a drain port 78 is disposed on the lower pipe body 21, and the cover plate 71 is used for covering the drain water; the cover plate 71 is provided with a clamping groove 73, a clamping rod 74 is arranged below the clamping groove 73, the clamping rod 74 is clamped with the clamping groove 73, a stop lever 75 is arranged on the clamping rod 74, a third elastic piece 76 is arranged below the stop lever 75, and the end part of the clamping rod 74 is connected with a pull rope 77.
When the guide post 510 moves to drive the connecting rod 59 to move, the connecting rod 59 moves to push the cover plate 71 to move, the cover plate 71 slides in the chute 79 through the sliding block 72 when moving, so that the cover plate 71 is convenient to cover the water outlet 78, when the water outlet 78 covers, the cover plate 71 can be extruded at the end part of the clamping rod 74 in the moving process, the clamping rod 74 moves downwards to drive the stop lever 75 to move downwards, the stop lever 75 extrudes the third elastic piece 76 to compress, when the clamping rod 74 moves to the position right below the clamping groove 73, the third elastic piece 76 pushes the clamping rod 74 to move upwards, the clamping rod 74 enters the inside of the clamping groove 73, the closed cover plate 71 is locked, and the cover plate 71 cannot move so that the cover plate 71 can be always covered on the water outlet 78. When the cover plate 71 needs to be opened, the water outlet 78 is opened, the pull rope 77 connected to the rotating rod 53 is pulled in the process of resetting and rotating the rotating rod 53, the pull rope 77 moves to drive the clamping rod 74 and the stop lever 75 to synchronously move, the third elastic piece 76 is compressed, the clamping rod 74 is separated from the inside of the clamping groove 73, then the cover plate 71 is separated from the water outlet 78 under the pulling of the connecting rod 59, and after that, the diversion mechanism 6 is closed.
In one embodiment, referring to fig. 3-4 of the specification, the flow guiding mechanism 6 includes a sealing block 62 disposed on an inner wall of the upper tube body 22, a sealing plate 61 matched with the sealing block 62 is disposed on the sealing block 62, a second elastic member 65 is disposed on one side of the sealing plate 61, the second elastic member 65 is used for pushing the sealing plate 61 to reset, a second clamping block 63 is disposed at a bottom of the sealing plate 61, a water inlet groove 64 is disposed on the second clamping block 63, and a first clamping block 56 for blocking the water inlet groove 64 is disposed below the water inlet groove.
The upper tube body 22 is sealed by the provided sealing plate 61, and when the first clamping block 56 is separated from the sealing plate 61, the rotating rod 53 is pressed on the sealing plate 61 during rotation, so that the sealing plate 61 is separated from the sealing block 62, and cooling water flows out from the third guide pipe 101. When the rotating rod 53 is reset, the sealing plate 61 is reset under the action of the third elastic piece 76, so that the third conduit 101 is blocked.
In one embodiment, referring to fig. 3 of the specification, the liquid exchange mechanism 3 includes an outer case 31 disposed on one side of the support 23, an upper case 35 and a lower case 33 are disposed inside the outer case 31, a telescopic sleeve 34 is disposed between the upper case 35 and the lower case 33, a water outlet pipe 36 is disposed above the upper case 35, and a first elastic member 32 for pushing the lower case 33 to move upwards is disposed at the bottom of the lower case 33.
The cooling liquid can enter the upper box 35 through the liquid exchanging mechanism 3, the cooling liquid exchanges liquid in the upper box 35, so that the mixed cooling liquid enters the engine shell 1 through the one-way valve 4, heat in the engine shell 1 is taken away, the second guide pipe 19 is communicated with the water outlet pipe 36 through the one-way valve, the water outlet pipe 36 is arranged on the side wall of the upper box 35, the upper box 35 is fixed on the outer box 31, and the lower box 33 moves downwards when being heated and expanded; in the process of heat exchange, the cooling liquid is heated, the lower box 33 body expands and moves downwards, when the hot heat exchange liquid enters the lower box 33, as the connection between each pipeline and the lower box 33 is sealed, vacuum is formed, the pump body pumps the cooling liquid to form circulation, the lower box 33 needs to expand when the liquid is heated, the compensation effect is provided for the volume change of the cooling liquid, the first elastic piece 32 contracts, and when the lower box 33 body moves upwards, the lower box 33 body is jacked upwards by the first elastic piece 32; the expansion and contraction between the upper box 35 and the lower box 33 is performed through the expansion and contraction sleeve 34, and more cooling liquid is stored between the upper box 35 and the lower box 33, so that the liquid exchange mechanism 3 is higher in efficiency during heat exchange, and the cooling effect of the cooling liquid is better.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing examples, and that the foregoing description and description are merely illustrative of the principles of this invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The cooling system of the forklift internal combustion engine comprises an engine shell (1), and is characterized in that a driving wheel (11) for transmission is arranged on the engine shell (1), a driven wheel (12) is arranged on one side of the driving wheel (11), a water pump (14) is arranged at one end of the driven wheel (12), the driven wheel (12) synchronously rotates along with the driving wheel (11), the driven wheel (12) is connected with the water pump (14), a first connecting pipe (15) and a second connecting pipe (16) are connected to the water pump (14), the first connecting pipe (15) is connected to the engine shell (1), and the end part of the second connecting pipe (16) is connected to a cooling mechanism (2); the cooling mechanism (2) is connected with a liquid exchange mechanism (3), and the liquid exchange mechanism (3) is connected to the engine shell (1) through a one-way valve (4).
2. A cooling system for a forklift internal combustion engine according to claim 1, characterized in that the driving wheel (11) and the driven wheel (12) are connected by a belt, a tensioning wheel (13) is arranged below the belt, the tensioning wheel (13) is arranged on the engine housing (1), a second conduit (19) is arranged on the engine housing (1), a first conduit (18) is arranged on the second conduit (19), the first conduit (18) is connected to the lower pipe body (21), and the second conduit (19) is connected to the one-way valve (4).
3. A cooling system of a forklift internal combustion engine according to claim 2, characterized in that the cooling mechanism (2) comprises a bracket (23) arranged at one side of the engine housing (1), a deflector (24) is arranged on the bracket (23), and an upper pipe body (22) and a lower pipe body (21) are arranged on the bracket (23); a fan (25) is arranged on one side of the guide plate (24), an opening and closing mechanism (5) is arranged in the upper pipe body (22), a blocking mechanism (7) is arranged in the lower pipe body (21), the blocking mechanism (7) is connected with the opening and closing mechanism (5) penetrating through the inside of the support (23), a guide mechanism (6) is arranged on one side of the opening and closing mechanism (5), and the guide mechanism (6) is used for blocking the flow of cooling liquid; when the opening and closing mechanism (5) is opened, the blocking mechanism (7) is sealed; when the plugging mechanism (7) is opened, the opening and closing mechanism (5) is closed.
4. A cooling system for a forklift internal combustion engine according to claim 3, wherein the opening and closing mechanism (5) comprises a telescopic piece (51) arranged inside the upper pipe body (22), a telescopic rod (52) is arranged on the telescopic piece (51), a rotating rod (53) is connected to the end part of the telescopic rod (52) in a sliding manner, a rotating pin (54) is connected to the rotating rod (53) in a rotating manner, the rotating pin (54) is fixed on the inner wall of the upper pipe body (22), and a clamping assembly is arranged on one side of the rotating rod (53) and used for clamping the flow guiding mechanism (6) to enable the third guide pipe (101) to be blocked; the rotating rod (53) is connected with a pushing component which is used for pushing the plugging mechanism (7) to open and close.
5. The cooling system of a forklift internal combustion engine according to claim 4, wherein the clamping assembly comprises a supporting block (55) arranged on the inner wall of the upper pipe body (22), the supporting block (55) is abutted against a rotating rod (53) arranged on one side of the supporting block, a rotating groove (531) is formed in the inner wall of the upper pipe body (22), an extrusion rod (555) is connected to the supporting block (55), a first clamping block (56) is connected to the extrusion rod (555), a spring (556) is arranged at the bottom of the extrusion rod (555), and the spring (556) is arranged in the inner wall of the upper pipe body (22).
6. The cooling system of a forklift internal combustion engine according to claim 5, wherein the pushing assembly comprises a supporting rod (57) arranged inside the bracket (23), the supporting rod (57) is movably connected with the rotating rod (53), the supporting rod (57) moves along with the rotation of the rotating rod (53), a moving block (58) is arranged at the bottom of the supporting rod (57), a guide groove (511) is formed in the moving block (58), a connecting rod (59) is arranged on one side of the moving block (58), a guide column (510) is arranged on the connecting rod (59), and the guide column (510) slides inside the guide groove (511).
7. The cooling system of a forklift internal combustion engine according to claim 6, wherein the plugging mechanism (7) comprises a pull rope (77) arranged inside a bracket (23), the pull rope (77) is connected to a rotating rod (53), a sliding groove (79) is arranged on the lower pipe body (21), a sliding block (72) is slidably arranged inside the sliding groove (79), a cover plate (71) is arranged on the sliding block (72), a water outlet (78) is arranged on the lower pipe body (21), and the cover plate (71) is used for covering water drainage;
the novel anti-theft lock is characterized in that a clamping groove (73) is formed in the cover plate (71), a clamping rod (74) is arranged below the clamping groove (73), the clamping rod (74) is clamped with the clamping groove (73), a stop lever (75) is arranged on the clamping rod (74), a third elastic piece (76) is arranged below the stop lever (75), and a pull rope (77) is connected to the end portion of the clamping rod (74).
8. The cooling system of a forklift internal combustion engine according to claim 7, wherein the diversion mechanism (6) comprises a sealing block (62) arranged on the inner wall of the upper pipe body (22), a sealing plate (61) matched with the sealing block (62) is arranged on the sealing block (62), a second elastic piece (65) is arranged on one side of the sealing plate (61), the second elastic piece (65) is used for pushing the sealing plate (61) to reset, a second clamping block (63) is arranged at the bottom of the sealing plate (61), a water inlet groove (64) is arranged on the second clamping block (63), and a first clamping block (56) for blocking the water inlet groove (64) is arranged below the water inlet groove.
9. The cooling system of a forklift internal combustion engine according to claim 8, wherein the liquid exchange mechanism (3) comprises an outer box body (31) arranged on one side of the bracket (23), an upper box (35) and a lower box (33) are arranged in the outer box body (31), a telescopic sleeve (34) is arranged between the upper box (35) and the lower box (33), a water outlet pipe (36) is arranged above the upper box (35), and a first elastic piece (32) for pushing the lower box (33) to move upwards is arranged at the bottom of the lower box (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311182880.4A CN117307301A (en) | 2023-09-14 | 2023-09-14 | Cooling system of fork truck internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311182880.4A CN117307301A (en) | 2023-09-14 | 2023-09-14 | Cooling system of fork truck internal combustion engine |
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| Publication Number | Publication Date |
|---|---|
| CN117307301A true CN117307301A (en) | 2023-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311182880.4A Pending CN117307301A (en) | 2023-09-14 | 2023-09-14 | Cooling system of fork truck internal combustion engine |
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| CN (1) | CN117307301A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117569909A (en) * | 2024-01-16 | 2024-02-20 | 江苏万泰动力设备有限公司 | Multichannel temperature control type generator set |
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2023
- 2023-09-14 CN CN202311182880.4A patent/CN117307301A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117569909A (en) * | 2024-01-16 | 2024-02-20 | 江苏万泰动力设备有限公司 | Multichannel temperature control type generator set |
| CN117569909B (en) * | 2024-01-16 | 2024-04-12 | 江苏万泰动力设备有限公司 | Multichannel temperature control type generator set |
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