A tension and straightening reducer

Abstract

The invention provides a straightening reducer, including a reducer body, a high-speed shaft end cover is provided at the end of the reducer body, a bearing seat cover is provided on one side of the reducer body, a No. 4 oil delivery channel is provided inside the high-speed shaft end cover, a high-speed input shaft is installed inside the high-speed shaft end cover, a No. 1 bearing and a No. 2 bearing are provided at both ends of the high-speed input shaft, a bearing seat end cover is installed on the bearing seat cover, a No. 3 oil delivery channel is provided inside the bearing seat cover, an oil delivery pipe is provided between the high-speed shaft end cover and the bearing seat end cover, an oil pump is installed on the bearing seat end cover, a No. 1 oil delivery channel and a No. 2 oil delivery channel are provided inside the bearing seat end cover, and the oil pump is provided with an oil inlet and an oil outlet. The straightening reducer described in the invention has a compact structure, and its high-speed shaft bearing adopts a shaft end pump lubrication method to solve the problem of grease lubrication failure, and its shock absorbing mechanism and heat dissipation mechanism play a shock absorbing and heat dissipation effect.

Description

Technical Field

[0001] The invention belongs to the field of reducers, and in particular relates to a tension-correction reducer. Background Art

[0002] A reducer is an independent component consisting of a gear drive, a worm drive, or a gear-worm drive enclosed in a rigid housing. It is often used as a reduction transmission device between the prime mover and the working machine. It matches the speed and transmits torque between the prime mover and the working machine or the actuator. It is widely used in modern machinery. At present, the reducer installed vertically in the straightening machine has a high-speed axial direction, a complex internal structure, and generally uses grease lubrication. However, grease lubrication is easy to melt and deteriorate in a high-temperature environment, and has a poor lubrication effect on bearings. In addition, the reducer will generate a lot of heat after long-term use. Excessive heat will cause the side wall of the reducer to heat up and deform. For the reducer in the straightening machine, the working state of the reducer must be stable and heat dissipating, which makes ordinary reducers inapplicable. Summary of the invention

[0003] In view of this, the invention aims to propose a tension-leveling reducer to solve the problems of grease lubrication failure, shock absorption and heat dissipation.

[0004] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0005] A tension and straightening reducer, comprising a reducer body, a high-speed shaft end cover is provided at the end of the reducer body, a bearing seat cover is provided on one side of the reducer body, a No. 4 oil delivery channel is provided inside the high-speed shaft end cover, a high-speed input shaft is installed in the high-speed shaft end cover, a No. 1 bearing and a No. 2 bearing are provided at both ends of the high-speed input shaft, a bearing seat end cover is installed on the bearing seat cover, a No. 3 oil delivery channel is provided inside the bearing seat cover, an oil delivery pipe is provided between the high-speed shaft end cover and the bearing seat end cover, an oil pump is installed on the bearing seat end cover, and a No. 1 oil delivery channel is provided inside the bearing seat end cover An oil channel and a No. 2 oil delivery channel, the oil pump is provided with an oil inlet and an oil outlet, one end of the No. 1 oil delivery channel is connected to the oil inlet, the other end of the No. 1 oil delivery channel is connected to the inside of the reducer body, one end of the No. 2 oil delivery channel is connected to the oil outlet, the other end of the No. 2 oil delivery channel is connected to one end of the No. 3 oil delivery channel, the other end of the No. 3 oil delivery channel is connected to one end of the oil delivery pipe, the other end of the oil delivery pipe is connected to one end of the No. 4 oil delivery channel, the other end of the No. 4 oil delivery channel is provided with a No. 1 branch for supplying oil to the No. 1 bearing and a No. 2 branch for supplying oil to the No. 2 bearing.

[0006] Furthermore, the reducer body also includes a bevel gear group, a first helical gear group, a second helical gear group, a third helical gear group and an output hollow shaft. The output end of the high-speed input shaft is transmission connected to the bevel gear group, and the bevel gear group, the first helical gear group, the second helical gear group and the third helical gear group are transmission connected in sequence. The output end of the third helical gear group is transmission connected to the output hollow shaft.

[0007] Furthermore, skeleton oil seals are installed at the input end of the high-speed input shaft and both ends of the output hollow shaft.

[0008] Furthermore, the outer sleeve of the high-speed input shaft is provided with a wear-resistant sleeve, and the skeleton oil seal is sleeved on the outer side of the wear-resistant sleeve.

[0009] Furthermore, a filter is provided at one end of the No. 1 oil delivery channel connected to the interior of the reducer body.

[0010] Furthermore, the reducer body is also provided with a heat dissipation mechanism and a drain port. A heat dissipation channel is opened on the inner wall of the reducer body. The drain port is located at the bottom end of the reducer body. The heat dissipation mechanism includes a water pump and a cold water source. The water pump and the cold water source are both fixedly connected to the outside of the reducer body. The water outlet end of the heat dissipation channel is connected to the drain port, the water inlet end of the heat dissipation channel is connected to the water outlet end of the water pump, and the water inlet end of the water pump is connected to the cold water source.

[0011] Furthermore, the reducer body is also provided with two shock-absorbing mechanisms, which are respectively sleeved on the two ends of the output hollow shaft and fixed to the outside of the reducer body. The shock-absorbing mechanism includes a shell and an annular plate, a plurality of sound-absorbing sponge strips and a plurality of shock-absorbing units arranged inside the shell. The shell is a cylindrical structure with one end open, and the shell is sleeved on the outside of the output hollow shaft. The top of the annular plate contacts the output hollow shaft, the bottom of the annular plate is fixedly connected to the top of the shock-absorbing unit, and the bottom of the shock-absorbing unit is fixedly connected to the inside of the shell. Sound-absorbing sponge strips are arranged between adjacent shock-absorbing units, and a mounting hole is opened at the bottom of the shell.

[0012] Furthermore, the shock absorbing unit includes a rubber spring, a shock absorbing telescopic cylinder and a plurality of sound absorbing sponge balls, one end of the rubber spring is fixedly connected to the bottom of the annular plate, the other end of the rubber spring is fixedly connected to the inside of the shell, and the sound absorbing sponge balls are filled in the gap of the rubber spring.

[0013] Furthermore, the inner diameter of the housing mounting hole is larger than the inner diameter of the output hollow shaft.

[0014] Compared with the prior art, the tension and straightening reducer created by the present invention has the following advantages:

[0015] (1) The present invention creates a straightening reducer that is installed vertically and has a compact structure. Its high-speed shaft bearing adopts a shaft end pump lubrication method, which solves the problem of grease lubrication failure. In addition, the reducer adopts a four-stage transmission, thereby improving the speed ratio of the reducer.

[0016] (2) The wear-resistant sleeve of the tension and straightening reducer created by the present invention not only prevents the skeleton oil seal from wearing and leaking, but also allows the wear-resistant sleeve to be replaced irregularly, thereby reducing the cost loss caused by replacing the bevel gear shaft due to wear.

[0017] (3) The present invention creates a tension-straightening reducer, whose heat dissipation mechanism dissipates heat from the reducer by conveying coolant in the heat dissipation channel, thereby enabling the tension-straightening reducer to operate normally.

[0018] (4) The present invention creates a tension-straightening reducer, in which the shock-absorbing mechanism absorbs the vibration force of the output hollow shaft through an annular plate and a rubber spring, thereby making the working state of the reducer stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of a tension-straightening reducer according to an embodiment of the present invention;

[0021] Figure 2 for Figure 1 A magnified view of middle;

[0022] Figure 3 A cross-sectional view of a shock absorbing mechanism of a tension and straightening reducer according to an embodiment of the present invention;

[0023] Figure 4 The present invention is a front view of a tension-straightening reducer according to an embodiment of the present invention.

[0024] Description of reference numerals:

[0025] 1- reducer body; 2- bearing seat cover; 21- bearing seat end cover; 211- No. 1 oil delivery channel; 212- No. 2 oil delivery channel; 22- No. 3 oil delivery channel; 3- high-speed input shaft; 31- wear-resistant sleeve; 32- No. 1 bearing; 33- No. 2 bearing; 4- high-speed shaft end cover; 41- No. 4 oil delivery channel; 411- No. 1 branch; 412- No. 2 branch; 5- oil delivery pipe; 6- bevel gear set; 7- No. 1 helical gear set; 8- No. 2 helical gear Wheel set; 9-No. 3 helical gear set; 10-output hollow shaft; 11-oil pump; 111-oil inlet; 112-oil outlet; 12-heat dissipation mechanism; 121-heat dissipation channel; 122-water pump; 123-cold water source; 13-drain outlet; 14-shock absorption mechanism; 141-housing; 142-rubber spring; 143-annular plate; 144-sound-absorbing sponge ball; 145-shock-absorbing telescopic cylinder; 146-sound-absorbing sponge strip; 15-skeleton oil seal. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0028] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0029] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0030] like Figures 1 to 4 As shown, a tensioning and straightening reducer comprises a reducer body 1, a high-speed shaft end cover 4 is provided at the end of the reducer body 1, a bearing seat cover 2 is provided on one side of the reducer body 1, a No. 4 oil delivery channel 41 is provided inside the high-speed shaft end cover 4, a high-speed input shaft 3 is installed in the high-speed shaft end cover 4, the input end of the high-speed input shaft 3 is connected to an external motor, a No. 1 bearing 32 and a No. 2 bearing 33 are provided at both ends of the high-speed input shaft 3, a bearing seat end cover 21 is installed on the bearing seat cover 2, a No. 3 oil delivery channel 22 is provided inside the bearing seat cover 2, an oil delivery pipe 5 is provided between the high-speed shaft end cover 4 and the bearing seat end cover 21, the oil delivery pipe 5 is a steel pipe, and a pipe clamping joint is provided at each end of the oil delivery pipe 5, an oil pump 11 is installed on the bearing seat end cover 21, and a No. 1 oil delivery channel 211 and a No. 2 oil delivery channel 212 are provided inside the bearing seat end cover 21, The oil pump 11 is provided with an oil inlet 111 and an oil outlet 112. The oil outlet end of the first oil delivery channel 211 is connected to the oil inlet 111, and the oil inlet end of the first oil delivery channel 211 is connected to the inside of the reducer body 1. The oil inlet end of the second oil delivery channel 212 is connected to the oil outlet 112, and the oil outlet end of the second oil delivery channel 212 is connected to the oil inlet end of the third oil delivery channel 22, and the oil outlet end of the third oil delivery channel 22 is connected to the oil inlet end of the third oil delivery channel 22. One end of the oil pipe 5 is connected to a pipe joint, and the other end of the oil pipe 5 is connected to the oil inlet end of the No. 4 oil delivery channel 41 through the pipe joint. The oil outlet end of the No. 4 oil delivery channel 41 is provided with a No. 1 branch 411 for supplying oil to the No. 1 bearing 32 and a No. 2 branch 412 for supplying oil to the No. 2 bearing 33. The oil outlet end of the No. 1 branch 411 corresponds to the No. 1 bearing 32, and the oil outlet end of the No. 2 branch 412 corresponds to the No. 2 bearing 33.

[0031] The reducer body 1 also includes a bevel gear set 6, a first helical gear set 7, a second helical gear set 8, a third helical gear set 9 and an output hollow shaft 10. The output end of the high-speed input shaft 3 is transmission-connected with the bevel gear set 6. The bevel gear set 6, the first helical gear set 7, the second helical gear set 8 and the third helical gear set 9 are transmission-connected in sequence. The output end of the third helical gear set 9 is transmission-connected with the output hollow shaft 10. The input shaft of the external straightening machine is sleeved inside the output hollow shaft 10. The reducer adopts a four-stage transmission. The advantage of this is that the structure is compact and the speed ratio of the reducer is improved.

[0032] The input end of the high-speed input shaft 3 is sleeved with a skeleton oil seal 15 , and both ends of the output hollow shaft 10 are sleeved with skeleton oil seals 15 respectively. The skeleton oil seal 15 can prevent the reducer from leaking oil.

[0033] The outer side of the high-speed input shaft 3 is provided with a wear-resistant sleeve 31, and the skeleton oil seal 15 is sleeved on the outer side of the wear-resistant sleeve 31. The wear-resistant sleeve 31 not only prevents the skeleton oil seal 15 from wearing and leaking oil, but also the wear-resistant sleeve 31 can be replaced irregularly, reducing the cost loss caused by replacing the bevel gear shaft due to wear.

[0034] The first oil delivery channel 211 is connected to one end of the reducer body 1 and is provided with a filter. The benefit of this is that impurities in the lubricating oil can be filtered out to prevent the oil delivery channels from being blocked.

[0035] The reducer body 1 is also provided with a heat dissipation mechanism 12 and a drain port 13. A heat dissipation channel 121 is provided on the inner wall of the reducer body 1. The drain port 13 is located at the bottom of the reducer body 1. The heat dissipation mechanism 12 includes a water pump 122 and a cold water source 123. The water pump 122 and the cold water source 123 are both fixedly connected to the outside of the reducer body 1. The water outlet of the heat dissipation channel 121 is connected to the drain port 13, the water inlet of the heat dissipation channel 121 is connected to the water outlet of the water pump 122, and the water inlet of the water pump 122 is connected to the cold water source 123. When in use, the staff starts the water pump 122, the water pump 122 is connected to the cold water source 123, and the coolant in the cold water source 123 is pumped into the inlet end of the heat dissipation channel 121. Under the power of the water pump 122, the coolant flows along the heat dissipation channel 121 in the inner wall of the reducer body 1, and then is discharged from the reducer body 1 from the water pipe at the drain port 13, thereby achieving the effect of heat dissipation for the reducer.

[0036] The reducer body 1 is also provided with two shock absorbing mechanisms 14, which are respectively sleeved on both ends of the output hollow shaft 10 and fixed to the outside of the reducer body 1. The shock absorbing mechanism 14 includes a shell 141 and an annular plate 143, a plurality of sound absorbing sponge strips 146 and a plurality of shock absorbing units arranged inside the shell 141. The shell 141 is a cylindrical structure with one end open. The shell 141 is sleeved on the outside of the output hollow shaft 10 to avoid interfering with the rotation of the output hollow shaft 10. The top of the annular plate 143 contacts the output hollow shaft 10, and the bottom of the annular plate 143 is fixed. The shock absorbing unit is fixedly connected to the top, and the bottom of the shock absorbing unit is fixedly connected to the inside of the shell 141. Sound-absorbing sponge strips 146 are arranged between adjacent shock absorbing units. A mounting hole is opened at the bottom of the shell 141. When the tensioning and straightening reducer is working, an axial impact force will be generated when the input shaft of the tensioning and straightening machine passes through the output hollow shaft 10. The annular plate 143 on the shock absorbing mechanism 14 can evenly distribute the pressure, so that the shock absorbing unit is evenly stressed, and the annular plate 143 is not easy to break, so as to better absorb the vibration force of the output hollow shaft 10, thereby achieving a shock absorbing effect. The sound-absorbing sponge strips 146 play a role in absorbing noise.

[0037] The shock absorbing unit includes a rubber spring 142, a shock absorbing telescopic cylinder 145 and a plurality of sound absorbing sponge balls 144. One end of the rubber spring 142 is fixedly connected to the bottom of the annular plate 143, and the other end of the rubber spring 142 is fixedly connected to the inside of the shell 141. The sound absorbing sponge balls 144 are filled in the gap of the rubber spring 142. The shock absorbing telescopic cylinder 145 is sleeved on the outside of the rubber spring 142. The sound absorbing sponge balls 144 can absorb noise. The rubber spring 142 absorbs the vibration force of the output hollow shaft 10, thereby reducing the vibration of the reducer. The shock absorbing telescopic cylinder 145 is a bellows to facilitate expansion and contraction, and can also prevent the rubber spring 142 from tilting left and right.

[0038] The inner diameter of the mounting hole of the housing 141 is larger than the inner diameter of the output hollow shaft 10 and smaller than the outer diameter of the output hollow shaft 10 . This has the advantage of not affecting the input shaft of the straightening machine passing through the output hollow shaft 10 .

[0039] The reducer is installed vertically, and the bevel gear set 6, the first helical gear set 7, the second helical gear set 8, the third helical gear set 9 and the output hollow shaft 10 below the high-speed input shaft 3 are all immersed in lubricating oil. When the high-speed input shaft 3 is lubricated with lubricating oil, the staff starts the oil pump 11, and the oil inlet 111 of the oil pump 11 extracts the lubricating oil in the reducer body 1 through the first oil delivery channel 211, and then delivers the lubricating oil from the oil outlet 112 to the second oil delivery channel 212, and the second oil delivery channel 212 then delivers the lubricating oil to the third oil delivery channel 22 inside the bearing seat cover 2, and the third oil delivery channel 22 delivers the lubricating oil to the oil delivery pipe 5 through the pipe joint, and the oil delivery pipe 5 then delivers the lubricating oil through the oil outlet 112. The oil is transported to the No. 4 oil delivery channel 41 through the pipe joint. The No. 4 oil delivery channel 41 transports the lubricating oil from the oil outlet end of the No. 4 oil delivery channel 41 to the No. 1 branch 411 and the No. 2 branch 412 respectively. The oil outlet end of the No. 1 branch 411 corresponds to the No. 1 bearing 32, so that the lubricating oil coming out of the oil outlet end of the No. 1 branch 411 lubricates the No. 1 bearing 32, and the oil outlet end of the No. 2 branch 412 corresponds to the No. 2 bearing 33, so that the lubricating oil coming out of the oil outlet end of the No. 2 branch 412 lubricates the No. 2 bearing 33, and then the lubricating oil flows downward along the No. 1 bearing 32 and the No. 2 bearing 33 back to the inside of the reducer body 1, thereby completing the lubrication cycle of the high-speed input shaft 3.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A tension and straightening reducer, characterized in that: It includes a reducer body, a high-speed shaft end cover is provided at the end of the reducer body, a bearing seat cover is provided on one side of the reducer body, a No. 4 oil delivery channel is provided inside the high-speed shaft end cover, a high-speed input shaft is installed in the high-speed shaft end cover, a No. 1 bearing and a No. 2 bearing are provided at both ends of the high-speed input shaft, a bearing seat end cover is installed on the bearing seat cover, a No. 3 oil delivery channel is provided inside the bearing seat cover, an oil delivery pipe is provided between the high-speed shaft end cover and the bearing seat end cover, an oil pump is installed on the bearing seat end cover, and a No. 1 oil delivery channel and a No. 2 oil delivery channel are provided inside the bearing seat end cover. No. 2 oil delivery channel, the oil pump is provided with an oil inlet and an oil outlet, one end of the No. 1 oil delivery channel is connected to the oil inlet, the other end of the No. 1 oil delivery channel is connected to the inside of the reducer body, one end of the No. 2 oil delivery channel is connected to the oil outlet, the other end of the No. 2 oil delivery channel is connected to one end of the No. 3 oil delivery channel, the other end of the No. 3 oil delivery channel is connected to one end of the oil delivery pipe, the other end of the oil delivery pipe is connected to one end of the No. 4 oil delivery channel, the other end of the No. 4 oil delivery channel is provided with a No. 1 branch for supplying oil to the No. 1 bearing and a No. 2 branch for supplying oil to the No. 2 bearing; The reducer body is also provided with a heat dissipation mechanism and a drain port. A heat dissipation channel is provided on the inner wall of the reducer body. The drain port is located at the bottom end of the reducer body. The heat dissipation mechanism includes a water pump and a cold water source. The water pump and the cold water source are both fixedly connected to the outside of the reducer body. The water outlet end of the heat dissipation channel is connected to the drain port. The water inlet end of the heat dissipation channel is connected to the water outlet end of the water pump. The water inlet end of the water pump is connected to the cold water source. The reducer body is also provided with two shock absorbing mechanisms, which are respectively sleeved on the two ends of the output hollow shaft and fixed to the outside of the reducer body. The shock absorbing mechanism includes a shell and an annular plate, a plurality of sound-absorbing sponge strips and a plurality of shock-absorbing units arranged inside the shell. The shell is a cylindrical structure with one end open. The shell is sleeved on the outside of the output hollow shaft. The top of the annular plate contacts the output hollow shaft. The bottom of the annular plate is fixedly connected to the top of the shock-absorbing unit. The bottom of the shock-absorbing unit is fixedly connected to the inside of the shell. Sound-absorbing sponge strips are arranged between adjacent shock-absorbing units. A mounting hole is opened at the bottom of the shell. The shock absorbing unit comprises a rubber spring, a shock absorbing telescopic cylinder and a plurality of sound absorbing sponge balls, one end of the rubber spring is fixedly connected to the bottom of the annular plate, the other end of the rubber spring is fixedly connected to the inside of the shell, the sound absorbing sponge ball is filled in the gap of the rubber spring, and the shock absorbing telescopic cylinder is sleeved outside the rubber spring; The inner diameter of the housing mounting hole is larger than the inner diameter of the output hollow shaft.

2. A tension-leveling reducer according to claim 1, characterized in that: The reducer body also includes a bevel gear set, a first helical gear set, a second helical gear set, a third helical gear set and an output hollow shaft. The output end of the high-speed input shaft is transmission connected to the bevel gear set. The bevel gear set, the first helical gear set, the second helical gear set and the third helical gear set are transmission connected in sequence. The output end of the third helical gear set is transmission connected to the output hollow shaft.

3. A tension-leveling reducer according to claim 1, characterized in that: The input end of the high-speed input shaft and both ends of the output hollow shaft are both installed with skeleton oil seals.

4. A tension-leveling reducer according to claim 3, characterized in that: The outer sleeve of the high-speed input shaft is provided with a wear-resistant sleeve, and the skeleton oil seal is sleeved on the outer side of the wear-resistant sleeve.

5. The tension-leveling reducer according to claim 1, characterized in that: The end of the No. 1 oil delivery channel connected to the interior of the reducer body is provided with a filter.

Images