CN210566046U - Speed reducer capable of running stably - Google Patents

Abstract

The utility model provides a speed reducer that operation is stable, the speed reducer that operation is stable is connected with the motor, and the speed reducer that operation is stable includes: the oil filling device comprises a shell, an input shaft, first external teeth, a first intermediate shaft, a first gear, third external teeth, a second intermediate shaft, a second gear, fifth external teeth, an output shaft, a third gear, an oil filling hole, a first oil plug, air holes and a sealing plug; two ends of the input shaft extend out of the shell; the first external teeth are arranged on the outer wall of the input shaft; the first external teeth are meshed with the second external teeth; the third external teeth are arranged on the outer wall of the first intermediate shaft; the third external tooth is meshed with the fourth external tooth; the fifth external teeth are arranged on the outer wall of the second intermediate shaft; two ends of the output shaft extend out of the shell; the third gear is sleeved on the output shaft, and the fifth external teeth are meshed with the sixth external teeth; the oil filling hole is arranged on the top wall of the shell; at least part of the first oil plug is embedded into the oil filling hole; the air holes are formed in the top wall of the shell at any time; at least part of the sealing plug is embedded in the vent hole.

Description

Speed reducer capable of running stably

Technical Field

The utility model relates to a speed reducer technical field particularly, relates to a speed reducer that operation is stable.

Background

Currently, in the related art, a speed reducer, which is a relatively precise machine used for the purpose of reducing the rotational speed and increasing the torque, plays a role of matching the rotational speed and transmitting the torque between a prime mover and a working machine or an actuator. The existing speed reducer is connected with the motor through one end of the input shaft, and by adopting the structure, the position of the speed reducer and the position of the motor are relatively fixed, so that the applicability of the speed reducer is reduced, and the application range of a product is limited.

SUMMERY OF THE UTILITY MODEL

The present invention aims at least solving one of the technical problems existing in the prior art or the related art.

Therefore, the utility model provides a speed reducer that operation is stable.

In view of this, the utility model provides a move stable speed reducer, the stable speed reducer of operation is connected with the motor, and the stable speed reducer of operation includes: the oil filling device comprises a shell, an input shaft, first external teeth, a first intermediate shaft, a first gear, third external teeth, a second intermediate shaft, a second gear, fifth external teeth, an output shaft, a third gear, an oil filling hole, a first oil plug, air holes and a sealing plug; a mounting cavity is arranged in the shell; the input shaft penetrates through the shell, two ends of the input shaft extend out of the shell, and the input shaft is connected with the motor; the first external teeth are arranged on the outer wall of the input shaft; the first intermediate shaft is fixed in the mounting cavity of the shell; the first gear is sleeved on the first intermediate shaft, second external teeth are arranged on the outer wall of the first gear, and the first external teeth are meshed with the second external teeth; the third external teeth are arranged on the outer wall of the first intermediate shaft; the second intermediate shaft is fixed in the mounting cavity of the shell; the second gear is sleeved on the second intermediate shaft, the outer wall of the second gear is provided with fourth external teeth, and the third external teeth are meshed with the fourth external teeth; the fifth external teeth are arranged on the outer wall of the second intermediate shaft; the output shaft penetrates through the shell, and two ends of the output shaft extend out of the shell; the third gear is sleeved on the output shaft, sixth external teeth are arranged on the outer wall of the third gear, and the fifth external teeth are meshed with the sixth external teeth; the oil filling hole is arranged on the top wall of the shell; at least part of the first oil plug is embedded into the oil filling hole; the air holes are formed in the top wall of the shell at any time; at least part of the sealing plug is embedded in the vent hole. In the technical scheme, firstly, the input shaft penetrates through the shell to be installed in an installation cavity of the shell, and the input shaft is connected with the motor to drive the input shaft to rotate; secondly, fixing the first intermediate shaft in the mounting cavity of the shell, sleeving the first gear on the first intermediate shaft, and enabling second external teeth on the first gear to be meshed with first external teeth of the input shaft, so that the input shaft drives the first intermediate shaft to rotate; the number of teeth of the first external teeth is smaller than that of the second external teeth, so that the first speed reduction of the speed reducer is realized through the meshing of the first external teeth and the second external teeth; thirdly, fixing the second intermediate shaft in the mounting cavity of the shell, and sleeving the second gear on the second intermediate shaft to realize that the fourth external teeth of the second gear are meshed with the third external teeth on the first intermediate shaft so as to realize that the first intermediate shaft drives the second intermediate shaft to rotate; the number of teeth of the third external teeth is smaller than that of the fourth external teeth, so that secondary speed reduction of the speed reducer is realized; thirdly, the output shaft penetrates through the shell, and the third gear is sleeved on the output shaft, so that sixth external teeth of the third gear are meshed with fifth external teeth on the second intermediate shaft, the second intermediate shaft drives the output shaft to rotate, and output of the output shaft is achieved; the number of teeth of the sixth external tooth is smaller than that of the fifth external tooth, so that the speed reducer is decelerated for three times; thirdly, the oil filling hole is formed in the top wall of the shell, so that oil is filled into the speed reducer through the oil filling hole, heat generated in transmission of the speed reducer is reduced, and noise is reduced; meanwhile, at least part of the first oil plug is embedded into the oil filling hole so as to avoid oil from volatilizing from the oil filling hole; thirdly, the air holes are formed in the top wall of the shell, so that air in the shell is discharged from the air holes during oil injection, and the pressure in the shell is prevented from being too high; at the same time, at least the sealing plug is inserted into the air hole to prevent the oil from being discharged from the air hole. The two ends of the input shaft extend out of the shell to realize that the two ends of the input shaft can be connected with the motor, so that the applicability of a product is improved, the application range of the product is expanded, the rotating direction of the speed reducer is changed by changing the connecting position of the motor and the input shaft, and the conversion of positive rotation and reverse rotation of the speed reducer is realized. By adopting the structure, the structure is simple, and the space occupied by the speed reducer is reduced on the premise of realizing the same transmission ratio through multi-stage speed reduction, so that the applicability of the speed reducer is improved, the weight of the speed reducer is reduced, and the production cost of a product is reduced; and through multistage speed reduction, make the rotational speed reduce gradually to make the operation of speed reducer more stable.

Specifically, the reducer that operates stably further includes: heating a tube; at least two heating pipes are arranged on two sides of the shell. Through setting up two at least heating pipes in the both sides of casing to realize two at least heating pipes and heat the casing, thereby avoid the temperature of the oil in the casing to hang down excessively, and then make the speed reducer also can be in low temperature area normal use.

Additionally, the utility model provides an operation stable speed reducer among the above-mentioned technical scheme can also have following additional technical characteristics:

in the above technical solution, preferably, the first external teeth and the input shaft are of an integrated structure; the third outer teeth and the first intermediate shaft are of an integrated structure; the fifth external tooth and the second intermediate shaft are of an integrated structure.

In the technical scheme, the first external teeth and the input shaft are arranged into an integrated structure, so that the connection strength of the first external teeth and the input shaft is improved, the installation steps are reduced, the assembly speed of a product is improved, the size of the speed reducer is reduced, and the transmission stability of the speed reducer is improved; the third outer teeth and the first intermediate shaft are arranged into an integrated structure, so that the connection strength of the third outer teeth and the first intermediate shaft is improved, the assembly speed of a product is improved, the size of the speed reducer is reduced, and the transmission stability of the speed reducer is further improved; through setting up the fifth external tooth and the second jackshaft into integral type structure, improve the joint strength of fifth external tooth and second jackshaft, improved the assembly speed of product, still reduced the volume of speed reducer, further improved the driven stability of speed reducer.

In the above technical solution, preferably, the reducer that operates stably includes: a first connecting key, a second connecting key and a third connecting key; the first connecting key is embedded into the first intermediate shaft and the first gear at the same time; the second connecting key is simultaneously embedded into the second intermediate shaft and the second gear; the third connecting key is embedded in the output shaft and the third gear at the same time.

In this technical scheme, through imbed first jackshaft and first gear with first connecting key simultaneously, imbed second jackshaft and second gear with the second connecting key simultaneously, imbed the third connecting key simultaneously in output shaft and the third gear to realize first jackshaft and first gear no relative rotation, the second jackshaft does not have relative rotation with the second gear, and the output shaft does not have relative rotation with the third gear, thereby improves the driven stability of speed reducer.

In the above technical solution, preferably, the reducer that operates stably includes: a first bearing and a second bearing; the first bearing is fixed in the mounting cavity of the shell, and the first bearing is sleeved at one end of the first intermediate shaft; the second bearing is fixed in the mounting cavity of the shell, and the second bearing is sleeved at the other end of the first intermediate shaft.

In the technical scheme, the first bearing is fixed in the mounting cavity of the shell, the first bearing is sleeved at one end of the first intermediate shaft, the second bearing is fixed in the mounting cavity of the shell, the second bearing is sleeved at the other end of the first intermediate shaft, the first intermediate shaft is supported by the first bearing and the second bearing, and the rotating friction coefficient of the first intermediate shaft is reduced.

In the above technical solution, preferably, the first intermediate shaft includes: the shaft comprises a body, a first shaft shoulder and a second shaft shoulder; the first shaft shoulder is sleeved outside the body and is attached to one side face of the first gear; the second shaft shoulder is sleeved on the outer side of the body, and the second shaft shoulder is attached to one side face of the first bearing.

In the technical scheme, the first shaft shoulder is sleeved outside the body and is attached to one side surface of the first gear, so that the first gear is positioned, the first gear is prevented from moving towards the first shaft shoulder, and second external teeth of the first gear are enabled to be meshed with first external teeth of the input shaft; establish the outside at the body through overlapping the second shoulder to laminating the second shoulder mutually with a side of first bearing, carry on spacingly through first bearing to first jackshaft in order to prevent that first jackshaft from taking place the displacement.

In the above technical solution, preferably, the reducer that operates stably includes: a first positioning sleeve; the first positioning sleeve is sleeved on the outer side of the first intermediate shaft, one end of the first positioning sleeve is attached to the other side face of the first gear, and the other end of the first positioning sleeve is attached to one side face of the second bearing.

In this technical scheme, establish the outside at first jackshaft through overlapping first position sleeve, laminate the one end of first position sleeve and the another side of first gear mutually to laminate the other end of first position sleeve and a side of second bearing mutually, fix a position first gear through first position sleeve in order to realize, thereby prevent that first gear from taking place the displacement.

In the above technical solution, preferably, the reducer that operates stably includes: a third bearing and a fourth bearing; the third bearing is fixed in the mounting cavity of the shell and is sleeved at one end of the output shaft; the fourth bearing is fixed in the mounting cavity of the shell, and the fourth bearing is sleeved at the other end of the output shaft.

In the technical scheme, the third bearing is fixed in the mounting cavity of the shell, the third bearing is sleeved at one end of the output shaft, meanwhile, the fourth bearing is fixed in the mounting cavity of the shell, and the fourth bearing is sleeved at the other end of the output shaft, so that the third bearing and the fourth bearing support the output shaft, and the rotating friction coefficient of the output shaft is reduced.

In the above technical solution, preferably, the reducer that operates stably includes: a second positioning sleeve and a third positioning sleeve; the second positioning sleeve is sleeved outside the output shaft, one end of the second positioning sleeve is attached to one side face of the third gear, and the other end of the second positioning sleeve is attached to the third bearing; the third locating sleeve is sleeved on the outer side of the output shaft, one end of the third locating sleeve is attached to the other side face of the third gear, and the other end of the third locating sleeve is attached to the fourth bearing.

In the technical scheme, one end of the second positioning sleeve is attached to one side face of the third gear by sleeving the second positioning sleeve on the outer side of the output shaft, and the other end of the second positioning sleeve is attached to the third bearing; meanwhile, the third positioning sleeve is sleeved outside the output shaft, one end of the third positioning sleeve is attached to the other side face of the third gear, the other end of the third positioning sleeve is attached to the fourth bearing, the third gear is positioned, and therefore the third gear is prevented from displacing and transmission is guaranteed to be carried out smoothly.

In the above technical solution, preferably, the reducer that operates stably includes: a threaded hole and a lifting lug; at least two threaded holes are arranged on the shell, and internal threads are arranged in the threaded holes; the lifting lug comprises a lifting lug body and a connecting part, the lifting lug body is in a circular ring shape and is connected with the connecting part, the outer wall of the connecting part is provided with external threads, and the connecting part is embedded into the threaded hole; wherein the internal thread is matched with the external thread.

In the technical scheme, at least two threaded holes are arranged in the shell, internal threads are arranged in the threaded holes, and the connecting part provided with the external threads on the outer wall is embedded into the threaded holes, so that the lifting lugs are fixed in the threaded holes due to the fact that the internal threads are matched with the external threads; meanwhile, the lifting lug body is arranged to be circular, so that the steel wire rope penetrates through the lifting lug body, and the product is lifted.

In the above technical solution, preferably, the reducer that operates stably includes: an oil drain port and a second oil plug; the oil drain port is arranged at the bottom of the shell and is communicated with the mounting cavity of the shell; the second oil plug is embedded in the oil drain port.

In the technical scheme, the oil discharge port is arranged on the bottom plate of the shell and is communicated with the mounting cavity of the shell, so that oil in the shell is discharged, and the cleanliness of the oil in the shell is ensured; through with in the second oil plug embedding oil drain to avoid when the speed reducer normal use, oil flows out from the oil drain, thereby improves the leakproofness of oil drain.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 shows a schematic structural diagram of a reducer that operates stably according to an embodiment of the present invention;

fig. 2 shows a schematic structural diagram of a reduction gear unit according to another embodiment of the present invention, which is stable in operation;

wherein, the correspondence between the reference numbers and the component names in fig. 1 and fig. 2 is:

12 casing, 14 input shaft, 16 first external teeth, 18 first intermediate shaft, 182 body, 184 first shoulder, 186 second shoulder, 20 first gear, 22 third external teeth, 24 second intermediate shaft, 26 second gear, 28 fifth external teeth, 30 output shaft, 32 third gear, 34 first connecting key, 36 second connecting key, 38 third connecting key, 40 first bearing, 42 second bearing, 44 first locating sleeve, 46 third bearing, 48 fourth bearing, 50 second locating sleeve, 52 third locating sleeve, 54 oil hole, 56 breather hole.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

A reduction gear unit according to some embodiments of the present invention that operates stably is described below with reference to fig. 1 and 2.

In the embodiment of the utility model, as shown in fig. 1 and fig. 2, the utility model provides a speed reducer that operates stably, the speed reducer that operates stably is connected with the motor, and the speed reducer that operates stably includes: the oil injection device comprises a shell 12, an input shaft 14, first external teeth 16, a first middle shaft 18, a first gear 20, third external teeth 22, a second middle shaft 24, a second gear 26, fifth external teeth 28, an output shaft 30, a third gear 32, an oil injection hole 54, a first oil plug, an air vent 56 and a sealing plug; a mounting cavity is arranged in the shell 12; the input shaft 14 penetrates through the shell 12, two ends of the input shaft 14 extend out of the shell 12, and the input shaft 14 is connected with the motor; the first external teeth 16 are provided on the outer wall of the input shaft 14; the first intermediate shaft 18 is fixed in the mounting cavity of the housing 12; the first gear 20 is sleeved on the first intermediate shaft 18, the outer wall of the first gear 20 is provided with second external teeth, and the first external teeth 16 are meshed with the second external teeth; the third outer tooth 22 is provided on the outer wall of the first intermediate shaft 18; the second intermediate shaft 24 is fixed in the mounting cavity of the housing 12; the second gear 26 is sleeved on the second intermediate shaft 24, the outer wall of the second gear 26 is provided with fourth external teeth, and the third external teeth 22 are meshed with the fourth external teeth; fifth outer tooth 28 is disposed on the outer wall of second intermediate shaft 24; the output shaft 30 passes through the shell 12, and two ends of the output shaft 30 extend out of the shell 12; the third gear 32 is sleeved on the output shaft 30, sixth external teeth are arranged on the outer wall of the third gear 32, and the fifth external teeth 28 are meshed with the sixth external teeth; the oil filler hole 54 is provided on the top wall of the housing 12; at least a portion of the first oil dam is inserted into the oil hole 54; the air holes 56 are arranged on the top wall of the random shell 12; at least a portion of the sealing plug is inserted into the vent 56.

In this embodiment, first, the input shaft 14 is installed in the installation cavity of the housing 12 by passing the input shaft 14 through the housing 12, and the input shaft 14 is connected with the motor to drive the input shaft 14 to rotate; secondly, the first intermediate shaft 18 is fixed in the mounting cavity of the shell 12, the first gear 20 is sleeved on the first intermediate shaft 18, and the second external teeth on the first gear 20 are meshed with the first external teeth 16 of the input shaft 14, so that the input shaft 14 drives the first intermediate shaft 18 to rotate; since the number of teeth of the first external teeth 16 is smaller than that of the second external teeth, the first deceleration of the speed reducer is realized through the meshing of the first external teeth 16 and the second external teeth; thirdly, the second intermediate shaft 24 is fixed in the mounting cavity of the shell 12, and the second gear 26 is sleeved on the second intermediate shaft 24, so that the fourth external teeth of the second gear 26 are meshed with the third external teeth 22 on the first intermediate shaft 18, and the first intermediate shaft 18 drives the second intermediate shaft 24 to rotate; because the number of teeth of the third external teeth 22 is less than that of the fourth external teeth, secondary speed reduction of the speed reducer is realized; thirdly, the output shaft 30 penetrates through the shell 12, and the third gear 32 is sleeved on the output shaft 30, so that the sixth external teeth of the third gear 32 are meshed with the fifth external teeth 28 on the second intermediate shaft 24, the second intermediate shaft 24 drives the output shaft 30 to rotate, and the output of the output shaft 30 is realized; because the number of teeth of the sixth external tooth is less than that of the fifth external tooth 28, the speed reducer is decelerated for three times; thirdly, oil is added into the speed reducer through the oil filling hole 54 by arranging the oil filling hole 54 on the top wall of the shell 12 and embedding at least part of the first oil plug into the oil filling hole 54, so that heat generated in the transmission of the speed reducer is reduced, and noise is reduced; at the same time, at least a part of the first oil plug is embedded in the oil filler hole 54 to avoid oil volatilization from the oil filler hole 54; thirdly, the air holes 56 are arranged on the top wall of the shell 12, so that air in the shell 12 is discharged from the air holes 56 during oil filling, and the pressure in the shell 12 is prevented from being too high; at the same time, at least the sealing plug is inserted into the airing hole 56 to prevent oil from being discharged from the airing hole 56. The two ends of the input shaft 14 extend out of the shell 12, so that the two ends of the input shaft 14 can be connected with the motor, the applicability of a product is improved, the application range of the product is expanded, the rotating direction of the speed reducer is changed by changing the connecting position of the motor and the input shaft 14, and the conversion of positive rotation and reverse rotation of the speed reducer is realized. By adopting the structure, the structure is simple, and the space occupied by the speed reducer is reduced on the premise of realizing the same transmission ratio through multi-stage speed reduction, so that the applicability of the speed reducer is improved, the weight of the speed reducer is reduced, and the production cost of a product is reduced; and through multistage speed reduction, make the rotational speed reduce gradually to make the operation of speed reducer more stable.

Specifically, the reducer that operates stably further includes: heating a tube; at least two heating pipes are disposed at both sides of the housing 12. Through setting up two at least heating pipes in the both sides of casing 12 to realize that two at least heating pipes heat casing 12, thereby avoid the temperature of the oil in casing 12 to hang down excessively, and then make the speed reducer also can be in low temperature area normal use.

In one embodiment of the present invention, preferably, as shown in fig. 1, the first external teeth 16 are of a unitary structure with the input shaft 14; the third external teeth 22 and the first intermediate shaft 18 are of an integrated structure; fifth outer tooth 28 is of unitary construction with second intermediate shaft 24.

In the embodiment, the first external teeth 16 and the input shaft 14 are arranged into an integral structure, so that the connection strength of the first external teeth 16 and the input shaft 14 is improved, the mounting steps are reduced, the assembly speed of a product is improved, the size of the speed reducer is reduced, and the transmission stability of the speed reducer is improved; the third outer teeth 22 and the first intermediate shaft 18 are arranged into an integrated structure, so that the connection strength of the third outer teeth 22 and the first intermediate shaft 18 is improved, the assembly speed of a product is improved, the size of the speed reducer is reduced, and the transmission stability of the speed reducer is further improved; through setting up fifth external tooth 28 and second jackshaft 24 to the integral type structure, improve the joint strength of fifth external tooth 28 and second jackshaft 24, improved the assembly speed of product, still reduced the volume of speed reducer, further improved the driven stability of speed reducer.

In an embodiment of the present invention, preferably, as shown in fig. 1, the speed reducer with stable operation includes: a first connecting key 34, a second connecting key 36 and a third connecting key 38; the first connecting key 34 is embedded in both the first intermediate shaft 18 and the first gear 20; the second connecting key 36 is embedded in both the second intermediate shaft 24 and the second gear 26; the third connecting key 38 is embedded in both the output shaft 30 and the third gear 32.

In the embodiment, the first connecting key 34 is embedded into the first intermediate shaft 18 and the first gear 20 at the same time, the second connecting key 36 is embedded into the second intermediate shaft 24 and the second gear 26 at the same time, and the third connecting key 38 is embedded into the output shaft 30 and the third gear 32 at the same time, so that the first intermediate shaft 18 and the first gear 20 do not rotate relatively, the second intermediate shaft 24 and the second gear 26 do not rotate relatively, and the output shaft 30 and the third gear 32 do not rotate relatively, so that the transmission stability of the speed reducer is improved.

In an embodiment of the present invention, preferably, as shown in fig. 1, the speed reducer with stable operation includes: a first bearing 40 and a second bearing 42; the first bearing 40 is fixed in the mounting cavity of the shell, and the first bearing 40 is sleeved at one end of the first intermediate shaft 18; the second bearing 42 is fixed in the mounting cavity of the housing, and the second bearing 42 is sleeved on the other end of the first intermediate shaft 18.

In this embodiment, the first bearing 40 is fixed in the mounting cavity of the housing, the first bearing 40 is sleeved on one end of the first intermediate shaft 18, the second bearing 42 is fixed in the mounting cavity of the housing, and the second bearing 42 is sleeved on the other end of the first intermediate shaft 18, so that the first bearing 40 and the second bearing 42 support the first intermediate shaft 18, and the friction coefficient of the rotation of the first intermediate shaft 18 is reduced.

In one embodiment of the present invention, preferably, as shown in fig. 1, the first intermediate shaft 18 includes: a body 182, a first shoulder 184, and a second shoulder 186; the first shoulder 184 is sleeved outside the body 182, and the first shoulder 184 is attached to one side surface of the first gear 20; the second shoulder 186 is disposed on the outer side of the body 182, and the second shoulder 186 is attached to a side surface of the first bearing 40.

In this embodiment, the first shoulder 184 is sleeved outside the body 182, and the first shoulder 184 is attached to one side surface of the first gear 20, so as to position the first gear 20, thereby preventing the first gear 20 from moving toward the first shoulder 184, and ensuring that the second external teeth of the first gear 20 are engaged with the first external teeth 16 of the input shaft 14; the second shoulder 186 is sleeved outside the body 182, and the second shoulder 186 is attached to one side surface of the first bearing 40, so that the first intermediate shaft 18 is limited through the first bearing 40, and the first intermediate shaft 18 is prevented from displacing.

In an embodiment of the present invention, preferably, as shown in fig. 1, the speed reducer with stable operation includes: a first positioning sleeve 44; the first positioning sleeve 44 is sleeved on the outer side of the first intermediate shaft 18, one end of the first positioning sleeve 44 is attached to the other side surface of the first gear 20, and the other end of the first positioning sleeve 44 is attached to one side surface of the second bearing 42.

In this embodiment, the first positioning sleeve 44 is sleeved on the outer side of the first intermediate shaft 18, one end of the first positioning sleeve 44 is attached to the other side surface of the first gear 20, and the other end of the first positioning sleeve 44 is attached to one side surface of the second bearing 42, so that the first gear 20 is positioned by the first positioning sleeve 44, and the first gear 20 is prevented from being displaced.

In an embodiment of the present invention, preferably, as shown in fig. 1, the speed reducer with stable operation includes: a third bearing 46 and a fourth bearing 48; the third bearing 46 is fixed in the mounting cavity of the housing, and the third bearing 46 is sleeved on one end of the output shaft 30; the fourth bearing 48 is fixed in the mounting cavity of the housing, and the fourth bearing 48 is sleeved on the other end of the output shaft 30.

In this embodiment, the third bearing 46 is fixed in the mounting cavity of the housing, the third bearing 46 is sleeved on one end of the output shaft 30, the fourth bearing 48 is fixed in the mounting cavity of the housing, and the fourth bearing 48 is sleeved on the other end of the output shaft 30, so that the third bearing 46 and the fourth bearing 48 support the output shaft 30 and reduce the friction coefficient of the rotation of the output shaft 30.

In an embodiment of the present invention, preferably, as shown in fig. 1, the speed reducer with stable operation includes: a second 50 and third 52 locating sleeves; the second positioning sleeve 50 is sleeved on the outer side of the output shaft 30, one end of the second positioning sleeve 50 is attached to one side surface of the third gear 32, and the other end of the second positioning sleeve 50 is attached to the third bearing 46; the third positioning sleeve 52 is sleeved on the outer side of the output shaft 30, one end of the third positioning sleeve 52 is attached to the other side surface of the third gear 32, and the other end of the third positioning sleeve 52 is attached to the fourth bearing 48.

In this embodiment, by sleeving the second positioning sleeve 50 on the outer side of the output shaft 30, one end of the second positioning sleeve 50 is attached to one side surface of the third gear 32, and the other end of the second positioning sleeve 50 is attached to the third bearing 46; meanwhile, the third positioning sleeve 52 is sleeved on the outer side of the output shaft 30, one end of the third positioning sleeve 52 is attached to the other side surface of the third gear 32, and the other end of the third positioning sleeve 52 is attached to the fourth bearing 48, so that the third gear 32 is positioned, the third gear 32 is prevented from being displaced, and smooth transmission is ensured.

In an embodiment of the present invention, preferably, the speed reducer that operates stably includes: a threaded hole and a lifting lug; at least two threaded holes are arranged on the shell 12, and internal threads are arranged in the threaded holes; the lifting lug comprises a lifting lug body and a connecting part, the lifting lug body is in a circular ring shape and is connected with the connecting part, the outer wall of the connecting part is provided with external threads, and the connecting part is embedded into the threaded hole; wherein the internal thread is matched with the external thread.

In this embodiment, at least two threaded holes are formed in the housing 12, an internal thread is formed in the threaded holes, and the connecting part with the external thread on the outer wall is embedded in the threaded holes, so that the lifting lug is fixed in the threaded holes due to the matching of the internal thread and the external thread; meanwhile, the lifting lug body is arranged to be circular, so that the steel wire rope penetrates through the lifting lug body, and the product is lifted.

In an embodiment of the present invention, preferably, the speed reducer that operates stably includes: an oil drain port and a second oil plug; the oil drain port is arranged at the bottom of the shell 12 and is communicated with the mounting cavity of the shell 12; the second oil plug is embedded in the oil drain port.

In this embodiment, the oil discharge port is arranged on the bottom plate of the shell 12 and is communicated with the mounting cavity of the shell 12, so as to discharge the oil in the shell 12, thereby ensuring the cleanliness of the oil in the shell 12; through with in the second oil plug embedding oil drain to avoid when the speed reducer normal use, oil flows out from the oil drain, thereby improves the leakproofness of oil drain.

In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In the present disclosure, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

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 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 (10)

1. A speed reducer that operates stably, the speed reducer that operates stably is connected with a motor, and is characterized in that the speed reducer that operates stably includes:

the device comprises a shell, a first connecting piece and a second connecting piece, wherein a mounting cavity is arranged in the shell;

the input shaft penetrates through the shell, two ends of the input shaft extend out of the shell, and the input shaft is connected with the motor;

a first outer tooth disposed on an outer wall of the input shaft;

a first intermediate shaft fixed within the mounting cavity of the housing;

the first gear is sleeved on the first intermediate shaft, second external teeth are arranged on the outer wall of the first gear, and the first external teeth are meshed with the second external teeth;

a third outer tooth disposed on an outer wall of the first intermediate shaft;

a second intermediate shaft fixed within the mounting cavity of the housing;

the second gear is sleeved on the second intermediate shaft, fourth external teeth are arranged on the outer wall of the second gear, and the third external teeth are meshed with the fourth external teeth;

a fifth outer tooth disposed on an outer wall of the second intermediate shaft;

the output shaft penetrates through the shell, and two ends of the output shaft extend out of the shell;

the third gear is sleeved on the output shaft, sixth external teeth are arranged on the outer wall of the third gear, and the fifth external teeth are meshed with the sixth external teeth;

the oil filling hole is arranged on the top wall of the shell;

the first oil plug is at least partially embedded into the oil injection hole;

the air holes are formed in the top wall of the shell at any time;

and at least part of the sealing plug is embedded into the ventilation hole.

2. The reducer of claim 1, wherein:

the first outer teeth and the input shaft are of an integrated structure;

the third outer teeth and the first intermediate shaft are of an integrated structure;

the fifth external teeth and the second intermediate shaft are of an integrated structure.

3. The operationally stable speed reducer of claim 2, further comprising:

a first connecting key embedded in both the first intermediate shaft and the first gear;

a second connecting key embedded in both the second intermediate shaft and the second gear;

a third connecting key embedded in both the output shaft and the third gear.

4. The operationally stable speed reducer of claim 3, further comprising:

the first bearing is fixed in the mounting cavity of the shell and sleeved at one end of the first intermediate shaft;

and the second bearing is fixed in the mounting cavity of the shell, and the second bearing is sleeved at the other end of the first intermediate shaft.

5. The operationally stable speed reducer of claim 4, wherein the first countershaft comprises:

a body;

the first shaft shoulder is sleeved on the outer side of the body and is attached to one side face of the first gear;

the second shaft shoulder is sleeved on the outer side of the body and attached to one side face of the first bearing.

6. The operationally stable speed reducer of claim 5, further comprising:

first position sleeve, first position sleeve cover is established the outside of first jackshaft, the one end of first position sleeve with the another side of first gear is laminated mutually, just the other end of first position sleeve with a side of second bearing is laminated mutually.

7. The operationally stable speed reducer of claim 6, further comprising:

the third bearing is fixed in the mounting cavity of the shell and is sleeved at one end of the output shaft;

and the fourth bearing is fixed in the mounting cavity of the shell, and the fourth bearing is sleeved at the other end of the output shaft.

8. The operationally stable speed reducer of claim 7, further comprising:

the second positioning sleeve is sleeved outside the output shaft, one end of the second positioning sleeve is attached to one side face of the third gear, and the other end of the second positioning sleeve is attached to the third bearing;

the third position sleeve, the third position sleeve cover is established the outside of output shaft, the one end of third position sleeve with the another side of third gear is laminated mutually, just the other end of third position sleeve with the fourth bearing is laminated mutually.

9. The operationally stable speed reducer of claim 1, further comprising:

at least two threaded holes are formed in the shell, and internal threads are formed in the threaded holes;

the lifting lug comprises a lifting lug body and a connecting part, the lifting lug body is annular, the lifting lug body is connected with the connecting part, the outer wall of the connecting part is provided with external threads, and the connecting part is embedded into the threaded hole;

wherein the internal thread is adapted to the external thread.

10. A operationally stable speed reducer according to any of claims 1 to 9 further comprising:

the oil drain port is arranged at the bottom of the shell and communicated with the mounting cavity of the shell;

a second oil plug embedded in the oil drain port.

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