CN113028039B

CN113028039B - Heat dissipation device for speed reducer

Info

Publication number: CN113028039B
Application number: CN202110253285.XA
Authority: CN
Inventors: 陈东红; 吕子乒; 陈向上
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2022-08-23
Anticipated expiration: 2041-03-09
Also published as: CN113028039A

Abstract

The invention discloses a heat dissipation device for a speed reducer, which comprises an air inducing device and a cold air device, wherein an air inlet and an air outlet are formed in a case of the speed reducer, the air inducing device is arranged in the case and used for guiding air to enter the case through the air inlet, the cold air device is installed at the air inlet and used for cooling the air entering the case, and oil baffles for preventing lubricating grease from leaking are arranged at the air inlet and the air outlet. The heat dissipation device for the speed reducer can effectively cool the interior of the speed reducer, and avoids the adverse effect of heat generated by high-speed rotation of the gear on the speed reducer.

Description

Heat dissipation device for speed reducer

Technical Field

The invention relates to the technical field of speed reducers, in particular to a heat dissipation device for a speed reducer.

Background

The reducer is a commonly used reduction transmission device, generally composed of gear transmission, worm transmission and worm-gear transmission enclosed in a rigid shell, and widely applied to a plurality of fields such as electric machinery, construction machinery, water conservancy machinery, chemical machinery, petroleum machinery and the like. However, in the working process of the speed reducer, gear friction can generate a large amount of heat, and the closed speed reducer shell is difficult to dissipate the heat in time, so that the temperature in the speed reducer is too high, lubricating grease, sealing elements and the like in the speed reducer are influenced, the abrasion of parts in the speed reducer can be accelerated in serious conditions, and the service life of the speed reducer is shortened.

Therefore, a heat dissipation device for a speed reducer, which can dissipate heat efficiently, is urgently needed.

Disclosure of Invention

In view of the above, the present invention provides a heat dissipation device for a speed reducer to solve the above technical problems.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a heat abstractor for speed reducer, includes induced air device and cold wind device, be provided with air intake and air outlet on the quick-witted case of speed reducer, the induced air device sets up quick-witted incasement, the induced air device is used for guiding the air to pass through the air intake gets into quick-witted incasement, the cold wind device is installed air intake department, the cold wind device is used for cooling the air that gets into quick-witted case, the air intake with air outlet department all is provided with the oil baffle that prevents lubricating grease and leak.

Furthermore, the induced draft device comprises a transmission gear, a transmission shaft and a fan, the transmission shaft is rotatably arranged in the case, the transmission gear is arranged on the transmission shaft and meshed with a driving gear of the speed reducer, and the fan is arranged on the transmission shaft.

Furthermore, an air inlet pipe extending outwards is arranged at the air inlet of the case, and the fan is accommodated in the air inlet pipe.

Furthermore, the cold wind device includes casing, tuber pipe, shutoff piece and pressure lock subassembly, the tuber pipe dish is established in the casing, just the air inlet end of tuber pipe runs through casing and external intercommunication, the air-out end of tuber pipe runs through the casing with the air intake intercommunication, the top of casing is provided with the water filling port, the bottom of casing is provided with puts the thing mouth, the shutoff piece is used for the shutoff put the thing mouth, the pressure lock subassembly is used for the locking the shutoff piece is in order to prevent the shutoff piece drops.

Furthermore, the blocking piece comprises an underframe and a rubber head sleeved on the underframe, a plurality of protrusions are arranged on the periphery of the front end of the rubber head at intervals, the protruding periphery is pressed against the inner peripheral wall of the object placing opening, an extending part extending backwards is arranged on the outer peripheral side of the middle part of the rubber head, and a ball convex part at the rear end of the extending part can be pressed against the inner peripheral wall of the object placing opening.

Furthermore, a bone strut is embedded in the inner side of the extending part, and the plug head part of the bone strut is embedded in the embedding groove on the spherical convex part.

Furthermore, the pressure lock assembly comprises a bottom block, a fixed seat, a pressure rod and a compression spring, wherein the bottom block is fixedly connected to the blocking piece, the fixed seat is fixedly arranged on the outer side of the shell, the pressure rod is movably arranged on the fixed seat, the compression spring is arranged between the pressure rod and the fixed seat, and the pressure rod can be pressed on the bottom block under the action of the compression spring so as to prevent the blocking piece from being separated from the object placing opening.

Furthermore, the outer side of the shell is provided with heat insulation cotton.

Furthermore, a plurality of air holes are formed in the oil baffle plate, each air hole is close to the outer portion of one side of the inner portion of the case, and an oil-proof cover is covered on the outer portion of one side of the inner portion of the case and provided with a ventilation opening.

Furthermore, an oil blocking plate is arranged in the oil prevention cover, the oil blocking plate is blocked between the ventilation opening and the air holes, a plurality of first through holes are formed in a first bent plate part of the oil blocking plate, and a plurality of second through holes are formed in a second bent plate part of the oil blocking plate.

The technical scheme can show that the invention has the advantages that: when the speed reducer works, the driving gear of the speed reducer drives the transmission shaft to rotate through the transmission gear, the transmission shaft drives the fan to rotate, the fan guides external air to enter the case through the air pipe, when air flow passes through the air pipe, ice water in the case can exchange heat with air flow in the air pipe, the temperature of the air flow is far lower than room temperature, then the low-temperature air flow enters the case to effectively cool the inside of the speed reducer, and the heat generated by high-speed rotation of the gear is prevented from generating adverse effects on the speed reducer.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic view of another embodiment of the present invention.

Fig. 3 is a schematic structural view of the air cooler of the present invention.

Fig. 4 is an enlarged view at K in fig. 3.

Fig. 5 is a schematic structural view of the oil deflector of the present invention.

Fig. 6 is a schematic structural view of the oil shield of the present invention.

List of reference numerals: the air conditioner comprises a cabinet 1, an air inlet 11, an air inlet pipe 111, a clamping groove 112, an air outlet 12, an air inducing device 2, a transmission gear 21, a transmission shaft 22, a fixed seat 23, a fan 24, a cold air device 3, a shell 31, a water injection port 311, an object placing port 312, an air pipe 32, a water injection plug 33, a plugging piece 34, a bottom frame 341, a T-shaped rod 3411, a rubber head 342, a protrusion 3421, an extending part 3422, a spherical convex part 34221, an embedding groove 34222, a bone support 3423, a plug part 34231, a press locking component 35, a bottom block 351, an inclined plane 3511, a fixed seat 352, a press rod 353, a hemispherical head 3531, a compression spring 354, an ice bag 36, heat insulation cotton 37, an oil baffle 4, an air hole 41, an oil prevention cover 42, an air vent 421, an oil baffle 43, a first bent plate part 431, a first through hole 4311, a second bent plate part 432, a second through hole 4321, a compression ring 5, an input shaft 6 and a driving gear 61.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.

Referring to fig. 1 to 6, as shown in fig. 1 and 2, the heat dissipation device for a speed reducer includes an air inducing device 2 and a cold air device 3, an air inlet 11 and an air outlet 12 are provided on a chassis 1 of the speed reducer, the air inducing device 2 is disposed in the chassis 1, the air inducing device 2 is used for guiding air to enter the chassis 1 through the air inlet 11, the cold air device 3 is installed at the air inlet 11, the cold air device 3 is used for cooling air entering the chassis 1, and oil baffles 4 for preventing lubricating grease from leaking are disposed at both the air inlet 11 and the air outlet 12.

As shown in fig. 1 and 2, an air inlet pipe 111 extending outward is disposed at an air inlet 11 of a chassis 1, an oil baffle 4 at the air inlet 11 is clamped in a clamping groove 112 inside the air inlet pipe 111, and the oil baffle 4 at an air outlet 12 is fixedly mounted on the chassis 1 through a clamping ring 5.

As shown in fig. 1 and 2, the induced draft device 2 includes a transmission gear 21, a transmission shaft 22 and a fan 24, the transmission shaft 22 is rotatably disposed in the cabinet 1 through a pair of fixing seats 23 and a pair of bearings, the transmission shaft 22 is located right above the input shaft 6 of the speed reducer, the transmission gear 21 is disposed on the transmission shaft 22, the transmission gear 21 is engaged with a driving gear 61 disposed on the input shaft 6, the fan 24 is mounted on the transmission shaft 22, and the fan 24 is accommodated in the air inlet pipe 111, so that when the speed reducer works, the driving gear 61 drives the transmission shaft 22 to rotate through the transmission gear 21, the transmission shaft 22 drives the fan 24 to rotate, and the fan 24 guides cool air to enter the cabinet 1 to cool the inside of the cabinet 1.

As shown in fig. 3, the cold air device 3 includes a housing 31, an air duct 32, a blocking member 34 and a pressure lock assembly 35, the air duct 32 is coiled in the housing 31, an air inlet end of the air duct 32 penetrates through the top of the housing 31 to communicate with the outside, an air outlet end of the air duct 32 penetrates through the housing 31 to connect with the air inlet pipe 111, a water inlet 311 is arranged on the top of the housing 31, an object opening 312 is arranged on the bottom of one side of the housing 31, the blocking member 34 is used for blocking the object opening 312, the pressure lock assembly 35 is used for locking the blocking member 34 to prevent the blocking member 34 from falling off, when in use, an operator puts an ice bag 36 into the bottom of the housing 31 from the object opening 312, then blocks the object opening 312 by using the blocking member 34 and locks the blocking member 34 by using the pressure lock assembly 35, and then the operator fills the housing 31 with ice water from the water inlet 311, so that when the fan 24 guides air flowing through the air duct 32, the ice water in the housing 31 exchanges heat with the air, the temperature of the air is reduced, so that the purpose of generating cold air is achieved, after the ice bag 36 is completely melted, an operator only needs to replace the ice bag 36 and refill ice water, and the operation and the maintenance are very simple and convenient.

Preferably, the outer side of the shell 31 is covered with insulation cotton 37.

Preferably, a filler plug 33 is screwed to the filler opening 311.

Preferably, a plurality of heat dissipation fins are disposed on the outer wall of the air duct 32, which is beneficial to heat exchange.

As shown in fig. 4, the blocking member 34 includes a base frame 341 and a rubber head 342 mounted on the base frame 341, a plurality of protrusions 3421 are spaced from the outer periphery of the front end of the rubber head 342, the outer periphery of the protrusions 3421 abuts against the inner peripheral wall of the storage opening 312, an extending portion 3422 extending backward is disposed on the outer periphery of the middle portion of the rubber head 342, a rib 3423 is embedded inside the extending portion 3422, a spherical protrusion 34221 at the rear end of the extending portion 3422 abuts against the inner peripheral wall of the storage opening 312, and a plug portion 34231 of the rib 3423 is embedded in a groove 34222 of the spherical protrusion 34221, so as to form multiple seals and effectively prevent water in the housing 31 from leaking out of the storage opening 312.

Preferably, the rubber head 342 is fitted over the T-shaped rod 3411 of the base frame 341, which is advantageous in preventing the rubber head 342 from falling off.

As shown in fig. 4, the press locking assembly 35 includes a bottom block 351, a fixed seat 352, a pressure lever 353 and a compression spring 354, the bottom block 351 is fixedly connected to the blocking piece 34, the top of the bottom block 351 is provided with an inclined surface 3511, the fixed seat 352 is fixedly arranged at the outer side of the housing 31, the pressure lever 353 is movably and obliquely arranged on the fixed seat 352, the compression spring 354 is arranged between the pressure lever 353 and the fixed seat 352, after the blocking piece 34 is installed in place, the lower end of the pressure lever 353 tightly abuts against the inclined surface 3511 of the bottom block 351 under the action of the compression spring 354, so that the bottom block 351 has a tendency of moving rightward, the blocking piece 34 can be prevented from being separated from the object placing opening 312, when the blocking piece 34 needs to be detached, the pressure lever 353 is pulled upwards to release the restriction of the pressure lever 353 on the bottom block 351, and the blocking piece 34 can be pulled out of the object placing opening 312, and the operation is simple.

Preferably, the lower end of the pressure lever 353 is provided with a hemispherical head portion 3531.

As shown in fig. 5, a plurality of air holes 41 are formed in the oil baffle plate 4, an oil-proof cover 42 covers the outside of one side of each air hole 41 close to the inside of the chassis 1, a vent 421 is formed at the lower part of the oil-proof cover 42, and the oil-proof cover 42 can effectively prevent splashed grease from leaking out through the air holes 41.

As shown in fig. 5 and 6, an oil blocking plate 43 is arranged in the oil shield 42, the oil blocking plate 43 is blocked between the vent 421 and the air vent 41, the oil blocking plate 43 comprises a first bent plate portion 431 and a second bent plate portion 432 which are connected, the free end of the first bent plate portion 431 is fixedly connected to the oil blocking plate 4, the free end of the second bent plate portion 432 is fixedly connected to the inner wall of the lower portion of the oil shield 42, a plurality of first through holes 4311 are arranged on the first bent plate portion 431 of the oil blocking plate 43, a plurality of second through holes 4321 are arranged on the second bent plate portion 432 of the oil blocking plate 43, and the oil blocking plate 43 is capable of further blocking splashed grease, so that the oil blocking effect of the oil blocking plate 4 is better.

As shown in fig. 1 and 2, when the speed reducer works, the driving gear 61 of the speed reducer drives the transmission shaft 22 to rotate through the transmission gear 21, and then the transmission shaft 22 drives the fan 24 to rotate, so that the fan 24 guides external air to enter the case 1 through the air pipe 32, and when air flow passes through the air pipe 32, ice water in the shell 31 can exchange heat with air flow in the air pipe 32, so that the temperature of the air flow is far lower than room temperature, and then the low-temperature air flow enters the case 1 to effectively cool the inside of the speed reducer, thereby avoiding adverse effect of heat generated by high-speed rotation of the gear on the speed reducer, the air inducing device 2 directly drives the speed reducer to work, without introducing an external power source, and energy consumption is saved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the embodiment of the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The heat dissipation device for the speed reducer is characterized by comprising an air inducing device (2) and a cold air device (3), wherein an air inlet (11) and an air outlet (12) are formed in a machine case (1) of the speed reducer, the air inducing device (2) is arranged in the machine case (1), the air inducing device (2) is used for guiding air to enter the machine case (1) through the air inlet (11), the cold air device (3) is installed at the air inlet (11), the cold air device (3) is used for cooling the air entering the machine case (1), oil baffles (4) for preventing lubricating grease from leaking outwards are arranged at the air inlet (11) and the air outlet (12), the air inducing device (2) comprises a transmission gear (21), a transmission shaft (22) and a fan (24), the transmission shaft (22) is rotatably arranged in the machine case (1), the transmission gear (21) is arranged on the transmission shaft (22), the transmission gear (21) is meshed with a driving gear (61) of the speed reducer, and the fan (24) is arranged on the transmission shaft (22); the cold air device (3) comprises a shell (31), an air pipe (32), a plugging piece (34) and a pressure locking assembly (35), wherein the air pipe (32) is coiled in the shell (31), the air inlet end of the air pipe (32) penetrates through the shell (31) and the outside, the air outlet end of the air pipe (32) penetrates through the shell (31) and the air inlet (11) which are communicated, a water filling port (311) is arranged at the top of the shell (31), an object placing port (312) is arranged at the bottom of the shell (31), the plugging piece (34) is used for plugging the object placing port (312), the pressure locking assembly (35) is used for locking the plugging piece (34) to prevent the plugging piece (34) from falling off, the plugging piece (34) comprises a bottom frame (341) and a rubber head (342) sleeved on the bottom frame (341), a plurality of bulges (3421) are arranged at intervals on the periphery of the front end of the rubber head (342), the periphery of the bulge (3421) is pressed against the inner peripheral wall of the object placing opening (312), an extending part (3422) extending backwards is arranged on the periphery of the middle part of the rubber head (342), and a spherical convex part (34221) at the rear end of the extending part (3422) can be pressed against the inner peripheral wall of the object placing opening (312).

2. The heat sink for a speed reducer according to claim 1, wherein an air inlet pipe (111) extending outward is disposed at the air inlet (11) of the chassis (1), and the fan (24) is accommodated in the air inlet pipe (111).

3. The heat dissipation device for the speed reducer according to claim 1, wherein a bone strut (3423) is embedded inside the extension portion (3422), and a plug portion (34231) of the bone strut (3423) is embedded in a groove (34222) of the spherical convex portion (34221).

4. The heat dissipation device for the speed reducer according to claim 1, wherein the compression lock assembly (35) comprises a bottom block (351), a fixed seat (352), a pressure lever (353) and a compression spring (354), the bottom block (351) is fixedly connected to the blocking piece (34), the fixed seat (352) is fixedly arranged on the outer side of the shell (31), the pressure lever (353) is movably arranged on the fixed seat (352), the compression spring (354) is arranged between the pressure lever (353) and the fixed seat (352), and the pressure lever (353) can be abutted against the bottom block (351) under the action of the compression spring (354) to prevent the blocking piece (34) from being separated from the storage opening (312).

5. The heat sink for a speed reducer according to claim 1, wherein insulation cotton (37) is provided on an outer side of the housing (31).

6. The heat dissipation device for the speed reducer according to claim 1, wherein a plurality of air holes (41) are formed in the oil baffle plate (4), an oil-proof cover (42) is covered on the outer portion of one side of each air hole (41) close to the inside of the case (1), and an air vent (421) is formed in the oil-proof cover (42).

7. The heat dissipation device for the speed reducer according to claim 6, wherein an oil blocking plate (43) is arranged in the oil-proof cover (42), the oil blocking plate (43) is blocked between the ventilation opening (421) and the ventilation hole (41), a plurality of first through holes (4311) are formed in a first bent plate portion (431) of the oil blocking plate (43), and a plurality of second through holes (4321) are formed in a second bent plate portion (432) of the oil blocking plate (43).