Vertical helical gear speed reducer

Abstract

The utility model relates to a vertical helical gear reducer which comprises a reducer body, an input shaft is axially arranged on the reducer body, one side of the reducer body is fixedly connected with a bearing seat, the bearing seat comprises a shell, a bearing cavity arranged in the shell and a first bearing arranged in the bearing cavity, and an output shaft is inserted in the bearing. A compensation oil tank is arranged on the top of the machine body, the machine body is connected with the compensation oil tank through a first oil pipe, the compensation oil tank is connected with the shell through a second oil pipe, and the second oil pipe is higher than the first bearing and provided with a three-way connecting piece. The three-way connecting piece is communicated with the shell, the compensation oil tank and the top of the machine body, the compensation oil tank is connected with the high-position bearing and the output shaft, the situation that lubricating oil cannot lubricate the high-position bearing when the speed reducer is vertically installed is avoided, the lubricating effect of the speed reducer is guaranteed, and the service life of the speed reducer is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical equipment field, concretely relates to a vertical helical gear speed reducer. BACKGROUND

[0002] The vertical helical gear speed reducer is a kind of speed reducer that is vertically installed in axial direction using helical gear transmission, realizes power transmission and speed reduction by helical gear meshing, has the characteristics such as compact structure, strong carrying capacity, stable transmission and low noise, and its vertical design optimizes space layout, is suitable for the scene of limited installation height;Helical gear pair disperses load by contact line meshing, improves transmission efficiency and service life, and the speed reducer is widely used in industrial automation, conveying equipment, stirring machinery and other fields, can provide low-speed high-torque output for equipment, reduce vibration and energy consumption simultaneously, and guarantee system stable operation.

[0003] The utility model discloses a vertical speed reducer, including vertical box, the top of vertical box is provided with motor seat for installing driving motor, vertical box is sequentially provided with input shaft, first gear shaft, second gear shaft and output shaft from top to bottom in it, the input shaft of motor seat is provided with one end and stretches into vertical box, the lower end of input shaft is engaged with the first helical gear of the first gear shaft left side sleeve, the right side of first gear shaft is engaged with the second helical gear of the second gear shaft right side sleeve, the left side of second gear shaft is engaged with the third helical gear of the output shaft sleeve, the axial extension direction of input shaft is perpendicular with the axial extension direction of first gear shaft, second gear shaft and output shaft, realizes input and output steering, and running is not easy to produce vibration, reduces the abrasion, but when the vertical installation of this speed reducer, the flow and distribution of lubricating oil change under the influence of gravity, and it is easy to cause the oil shortage of part lubricating position, cannot fully guarantee the good lubrication of each part of speed reducer, aggravates the wear of part, simultaneously, commonly used oil mirror oil ruler cannot real-time accurate feedback the lubricating oil residual quantity in speed reducer, and the operator is difficult to detect the oil shortage condition in time, if due to lubricating oil leakage, because the operator does not find, it is easy to cause bearing wear due to oil shortage, and further causes equipment failure, influence production continuity and equipment service life, therefore, this technology still has certain improvement space. SUMMARY

[0004] The utility model provides a vertical helical gear speed reducer to solve the technical problem of the prior art.

[0005] In order to achieve the above object, the utility model provides technical schemes as follows: a vertical helical gear speed reducer, including a body, the body is provided with an input shaft in the axial direction, one side of the body is fixedly connected with a bearing seat, the bearing seat includes a shell, a bearing cavity arranged in the shell and a first bearing built in the bearing cavity, the bearing is inserted with an output shaft, the input shaft and the output shaft are connected through a speed reduction gear set linkage, characterized by: the top of the body is equipped with a compensation oil tank, the body and the compensation oil tank are connected through a first oil pipe, the compensation oil tank and the shell are connected through a second oil pipe, the second oil pipe is higher than the first bearing, the second oil pipe is equipped with a three -way connector, the three -way connector is respectively communicated with the shell, the compensation oil tank and the top of the body.

[0006] Adopt the above technical scheme, when the speed reducer is running, the lubricating oil temperature in the body rises and expands, the oil enters the compensation oil tank through the first oil pipe from the tank oil port, the compensation oil tank is arranged on the top of the body, is communicated with the body through the first oil pipe, the second oil pipe is higher than the first bearing, provides the lubricating oil supply for the input shaft and the first bearing, ensures the full lubrication of the transmission component, the three -way connector is communicated with the second oil pipe, the compensation oil tank and the top of the body, the bearing at the upper end in the body is lubricated through the second oil pipe, avoids the lubricating oil lubrication of the high bearing when the vertical installation of the speed reducer, ensures the lubricating effect of the speed reducer, improves the service life of the speed reducer.

[0007] The vertical helical gear speed reducer can be further provided with a plurality of oil mirror holes vertically arranged on the periphery of the shell, a first oil mirror arranged in the oil mirror hole, and a second oil mirror arranged on one side of the compensation oil tank.

[0008] Adopt the above technical scheme, the first oil mirror is installed in the oil mirror hole vertically arranged on the periphery of the shell, the oil level and oil quality in the bearing cavity can be directly observed, the plurality of oil mirror holes and the first oil mirror vertically arranged can fully observe the oil level at different heights, and the second oil mirror arranged on one side of the compensation oil tank can observe the lubricating oil reserve in the compensation oil tank.

[0009] The vertical helical gear speed reducer can be further provided with an output gland arranged on one side of the output shaft end of the shell, a first oil seal arranged between the shell and the output shaft, a first labyrinth seal sleeve arranged on the input shaft, the first labyrinth seal sleeve covering the surface of the shell and the first oil seal, an input gland arranged on one side of the input shaft end of the body, a plurality of second oil seals arranged between the input shaft and the input gland, and a second labyrinth seal sleeve arranged on the input shaft, the second labyrinth seal sleeve covering the surface of the body and the second oil seal.

[0010] The output gland is arranged on the side of the shell facing the end of the output shaft, cooperates with the first oil seal to form a seal, effectively blocks the leakage of lubricating oil, the first labyrinth seal cover forms an airtight barrier on the surface of the shell and the first oil seal, further prevents the intrusion of external contaminants into the bearing cavity; the input gland is fixed on the end of the body facing the input shaft, cooperates with the second oil seal to seal the input shaft, reduces the risk of oil leakage; the second labyrinth seal cover is sleeved on the input shaft and covers the surface of the body and the second oil seal, and the protection of the input end is strengthened through the multi-layer sealing structure.

[0011] The vertical helical gear reducer can be further provided with a first abutting protrusion for abutting against the outer ring of the first bearing, an adjusting ring arranged at the end of the bearing cavity away from the first abutting protrusion, a second abutting protrusion arranged on the outer periphery of the output shaft for abutting against the inner ring of the first bearing, a nut stop washer fixed at the end of the output shaft away from the second protrusion, a distance ring arranged between the nut stop washer and the first bearing, the distance ring abutting against the inner ring of the first bearing, and a locking nut arranged on the top of the nut stop washer to fix the position of the distance ring.

[0012] The first abutting protrusion provides positioning support for the outer ring of the first bearing, ensuring the axial fixation of the bearing in the bearing cavity; the adjusting ring is arranged at the end of the bearing cavity away from the first abutting protrusion, and can fine-tune the bearing gap to adapt to different working conditions; the second abutting protrusion abuts against the inner ring of the first bearing on the outer periphery of the output shaft, achieving the axial positioning of the inner ring of the bearing; the nut stop washer is fixed at the end of the output shaft away from the second abutting protrusion, and contacts the inner ring of the first bearing through the distance ring; the locking nut is fixed on the top of the nut stop washer, tightly pressing the distance ring, preventing displacement or loosening of the bearing during operation.

[0013] The vertical helical gear reducer can be further provided with an oil inlet hole arranged on the adjusting ring and the shell, the oil inlet hole being connected with the second oil pipe, the oil inlet hole being provided with a first flared pipe joint, the three-way connector being connected with the top of the body through a third oil pipe, the top of the body being provided with a second flared pipe joint connected with the third oil pipe, and the top of the body being further provided with a tapered pipe threaded taper joint connected with the first pipe.

[0014] The oil inlet holes of the adjusting ring and the shell are connected through the second oil pipe, ensuring the delivery of lubricating oil from the compensation oil tank to the bearing cavity; the first flared pipe joint is arranged in the oil inlet hole, the second flared pipe joint is connected with the third oil pipe, the first pipe is connected with the tapered pipe threaded taper joint, achieving quick docking and sealing, and reducing the risk of oil leakage.

[0015] The vertical helical gear speed reducer can be further provided with: the speed reduction gear set comprises an arc tooth bevel gear shaft arranged at the end of the input shaft away from the input gland, a gear shaft arranged in the machine body, the gear shaft being perpendicular to the arc tooth bevel gear shaft, the gear shaft being sleeved with an arc tooth bevel gear meshing with the arc tooth bevel gear shaft, the gear shaft being further provided with a clamping tooth, and the output shaft being sleeved with a transmission gear meshing with the clamping tooth.

[0016] The arc tooth bevel gear shaft arranged at the end of the input shaft away from the input gland is meshed with the arc tooth bevel gear on the vertically arranged gear shaft, the direction conversion and low-speed transmission of power are realized by using the geometric characteristics of the bevel gear, the clamping tooth on the gear shaft is meshed with the transmission gear arranged on the output shaft sleeve, and the output shaft is driven to rotate.

[0017] The vertical helical gear speed reducer can be further provided with: the machine body is provided with a gear shaft seat, the gear shaft is arranged in the gear shaft seat, and the second bearing is arranged between the gear shaft and the gear shaft seat at both ends of the gear shaft.

[0018] The gear shaft is arranged in the gear shaft seat and is radially supported by the second bearing at both ends, so that the rotation of the gear shaft is ensured, and the second flared brake pipe joint and the third oil pipe arranged above the second bearing are connected to realize the lubrication of the second bearing.

[0019] The vertical helical gear speed reducer can be further provided with: the shell is provided with a temperature sensor for detecting the temperature of lubricating oil and an electric heater for heating lubricating oil.

[0020] The temperature sensor monitors the temperature of lubricating oil in real time, converts the temperature signal into an electric signal and transmits the electric signal to the controller, the controller compares the temperature signal with a preset temperature value, if the actual temperature is lower than the preset value, the controller sends an instruction to start the electric heater, so that the electric heater starts heating, with the heating process, the temperature gradually rises, the temperature sensor continuously monitors and feeds back the temperature information, and when the actual temperature reaches or exceeds the preset value, the controller sends an instruction to stop the heating of the heater or reduces the heating power, so that the temperature is maintained within the preset value range.

[0021] The vertical helical gear speed reducer can be further provided with: the shell is provided with a temperature sensor for detecting the temperature of lubricating oil and an electric heater for heating lubricating oil. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The vertical helical gear speed reducer can be further provided with: the shell is provided with a temperature sensor for detecting the temperature of lubricating oil and an electric heater for heating lubricating oil.

[0023] Figure 2This is a structural diagram of the output shaft of this utility model;

[0024] Figure 3 This is a structural diagram of the input shaft of this utility model;

[0025] Figure 4 This is a structural diagram of the bearing housing of this utility model;

[0026] Figure 5 This is a side view of the device of this utility model;

[0027] Label annotations: 1-Main body, 2-Input shaft, 3-Bearing housing, 4-Outer shell, 5-Bearing cavity, 6-First bearing, 7-Output shaft, 8-Compensation oil tank, 9-First oil pipe, 10-Second oil pipe, 11-T-connector, 12-Oil sight hole, 13-First oil sight, 14-Second oil sight, 15-Output gland, 16-First oil seal, 17-First labyrinth seal sleeve, 18-Input gland, 19-Second oil seal, 20-Second labyrinth seal sleeve, 21-First abutment protrusion, 22 - Adjusting ring, 23- Second abutting protrusion, 24- Nut stop washer, 25- Spacer ring, 26- Locking nut, 27- Oil inlet, 28- First flared brake pipe connector, 29- Third oil pipe, 30- Second flared brake pipe connector, 31- Taper pipe threaded taper connector, 32- Arc bevel gear shaft, 33- Gear shaft, 34- Arc bevel gear, 35- Gear clip, 36- Transmission gear, 37- Gear shaft seat, 38- Second bearing, 39- Temperature sensor, 40- Electric heater. Detailed Implementation

[0028] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0029] like Figures 1-5The utility model provides a vertical helical gear speed reducer, including body 1, body 1 is provided with input shaft 2 in the axial direction, body 1 one side is fixedly connected with bearing seat 3, bearing seat 3 includes shell 4, bearing cavity 5 of setting in shell 4 and first bearing 6 of being built -in in bearing cavity 5, bearing inserts output shaft 7, is connected through speed reducer gear group linkage between input shaft 2 and output shaft 7, body 1 top is equipped with compensation oil tank 8, body 1 is connected with compensation oil tank 8 through first oil pipe 9, compensation oil tank 8 is connected with shell 4 through second oil pipe 10, second oil pipe 10 is higher than first bearing 6, second oil pipe 10 is equipped with three -way connector 11, three -way connector 11 is connected with shell 4, compensation oil tank 8 and body 1 top respectively, when speed reducer operates, body 1 inside lubricating oil temperature rises and expands, and the oil liquid enters compensation oil tank 8 in from tank oil port through first oil pipe 9, compensation oil tank 8 is set up in body 1 top, and is communicated with body 1 through first oil pipe 9, and second oil pipe 10 is higher than first bearing 6, provides lubricating oil supply for input shaft 2 and first bearing 6, ensures the full lubrication of transmission component, three -way connector 11 is communicated with second oil pipe 10 and compensation oil tank 8 and body 1 top, and the bearing in the upper end of body 1 is lubricated through second oil pipe 10, avoids the lubricating oil lubrication not to the high place bearing when speed reducer vertical installation, guarantees the lubrication effect of speed reducer, improves the service life of speed reducer, and the periphery of shell 4 is vertically equipped with a plurality of oil mirror hole 12, and first oil mirror 13 is equipped in oil mirror hole 12, and second oil mirror 14 is equipped in one side of compensation oil tank 8, and first oil mirror 13 is installed in the vertically set oil mirror hole 12 of shell 4 periphery, can directly observe the oil level and oil quality state in bearing cavity 5, and the vertically set a plurality of oil mirror hole 12 and first oil mirror 13 can fully observe the oil level of different height, and the second oil mirror 14 set in one side of compensation oil tank 8 can observe the lubricating oil reserve in compensation oil tank 8, and the side of the end of shell 4 towards output shaft 7 is equipped with output gland 15, and first oil seal 16 is equipped between shell 4 and output shaft 7, and first labyrinth seal cover 17 is sleeved with output shaft 7, and first labyrinth seal cover 17 covers in shell 4 and first oil seal 16 surface, and the side of the end of body 1 towards input shaft 2 is equipped with input gland 18, and a plurality of second oil seal 19 is equipped between input shaft 2 and input gland 18, and second labyrinth seal cover 20 is sleeved with input shaft 2, and second labyrinth seal cover 20 covers in body 1 and second oil seal 19 surface, and output gland 15 is set up in the side of the end of shell 4 towards output shaft 7, and cooperates with first oil seal 16 to form seal, effectively blocks lubricating oil leakage, and first labyrinth seal cover 17 covers in shell 4 and first oil seal 16 surface and forms airtight barrier, further prevents the invasion of external pollutants in bearing cavity 5, and input gland 18 is fixed in the side of the end of body 1 towards input shaft 2, and second oil seal 19 seals input shaft 2 together, reduces the oil leakage risk.The second labyrinth seal cover 20 is sleeved on the input shaft 2 and covers the surface of the second oil seal 19 and the machine body 1, and the protection of the input end is strengthened through the multi-layer sealing structure, the bearing cavity 5 is provided with a first abutting bump 21 for abutting the outer ring of the first bearing 6, the bearing cavity 5 is provided with an adjusting ring 22 at the end away from the first abutting bump 21 of the first bearing 6, the outer periphery of the output shaft 7 is provided with a second abutting bump 23 for abutting the inner ring of the first bearing 6, the output shaft 7 is fixedly provided with a nut stop washer 24 at the end away from the second bump of the first bearing 6, a distance ring 25 is arranged between the nut stop washer 24 and the first bearing 6, the distance ring 25 abuts against the inner ring of the first bearing 6, the top of the nut stop washer is provided with a locking nut 26 for fixing the position of the distance ring 25, the first abutting bump 21 provides positioning support for the outer ring of the first bearing 6, and the axial fixation of the bearing in the bearing cavity 5 is ensured; the adjusting ring 22 is arranged at the end of the bearing cavity 5 away from the first abutting bump 21, and the bearing gap can be finely adjusted to adapt to different working conditions; the second abutting bump 23 abuts against the inner ring of the first bearing 6 on the outer periphery of the output shaft 7, thereby achieving the axial positioning of the inner ring of the bearing; the nut stop washer 24 is fixed at the end of the output shaft 7 away from the second abutting bump 23, and the distance ring 25 is in contact with the inner ring of the first bearing 6, the locking nut 26 is fixed on the top of the nut stop washer 24, the distance ring 25 is tightly pressed, and the displacement or loosening of the bearing during operation is prevented, the adjusting ring 22 and the shell 4 are both provided with an oil inlet hole 27, the oil inlet hole 27 is connected with the second oil pipe 10, the oil inlet hole 27 is provided with a first flared brake pipe joint 28, the three-way connecting piece 11 is connected with the top of the machine body 1 through the third oil pipe 29, the top of the machine body 1 is provided with a second flared brake pipe joint 30 connected with the third oil pipe 29, and the top of the machine body 1 is also provided with a conical threaded taper joint 31 connected with the first pipeline, the oil inlet holes 27 of the adjusting ring 22 and the shell 4 are connected through the second oil pipe 10, so that the delivery of lubricating oil from the compensation oil tank 8 to the bearing cavity 5 is ensured, the first flared brake pipe joint 28 is arranged in the oil inlet hole 27, the second flared brake pipe joint 30 is connected with the third oil pipe 29, the first pipeline is connected with the conical threaded taper joint, rapid butt joint and sealing are realized, and the risk of oil leakage is reduced.

[0030] As Figures 1-5The utility model provides the following technical scheme, a kind of vertical helical gear speed reducer, reduction gear set includes the arc tooth bevel gear shaft 32 being equipped with in the input shaft 2 far from input gland 18 one end, gear shaft 33 is equipped in body 1, gear shaft 33 is perpendicular to arc tooth bevel gear shaft 32, gear shaft 33 is equipped with the arc tooth bevel gear 34 meshing with arc tooth bevel gear shaft 32, gear shaft 33 is further equipped with pawl 35, output shaft 7 is equipped with the transmission gear 36 kneading with pawl 35, the arc tooth bevel gear shaft 32 of input shaft 2 far from input gland 18 one end setting, with the arc tooth bevel gear 34 on the gear shaft 33 of vertical arrangement meshing, the geometric characteristics of bevel gear are used to realize the direction conversion and low speed transmission of power, pawl 35 on gear shaft 33 and transmission gear 36 equipped with output shaft 7 meshing, to drive output shaft 7 rotation, gear shaft seat 37 is equipped in body 1, gear shaft 33 is arranged in gear shaft seat 37, second bearing 38 is equipped between gear shaft 33 two ends and gear shaft seat 37, second flared brake pipe joint 30 and third oil pipe 29 are placed above second bearing 38, gear shaft 33 is arranged in gear shaft seat 37, and radial support is realized by the second bearing 38 of two ends, ensure the rotation of gear shaft 33, the second flared brake pipe joint 30 of second bearing 38 top setting is connected with third oil pipe 29, and the lubrication of second bearing 38 is realized, temperature sensor 39 of detecting lubricating oil temperature and electric heater 40 of heating lubricating oil are equipped on one side of shell 4, temperature sensor 39 real-time monitoring lubricating oil temperature, and temperature signal is converted into electric signal and is transmitted to controller, controller receives temperature signal and compares with preset temperature value, if actual temperature is lower than preset value, controller will issue instruction and start electric heater 40, so that it starts heating, with the heating process, temperature gradually rises, temperature sensor 39 continuously monitors and feeds back temperature information, when actual temperature reaches or exceeds preset value, controller will issue instruction and let heater stop heating or reduce heating power, to maintain temperature in preset value range.

[0031] The utility model has the advantages that compensation oil tank 8 is connected with high bearing and output shaft 7, avoids that lubricating oil lubrication does not reach high bearing when vertical installation of speed reducer, guarantees the lubrication effect of speed reducer, improves the service life of speed reducer.

Claims

1. A vertical helical gear reducer, comprising a body, an input shaft axially arranged on the body, a bearing housing fixedly connected to one side of the body, the bearing housing comprising a housing, a bearing cavity disposed within the housing, and a first bearing housed within the bearing cavity, an output shaft inserted into the bearing, the input shaft and the output shaft being linked by a reduction gear set, characterized in that: The top of the machine body is provided with a compensation oil tank. The machine body and the compensation oil tank are connected by a first oil pipe. The compensation oil tank is connected to the outer shell by a second oil pipe. The second oil pipe is higher than the first bearing. The second oil pipe is provided with a three-way connector. The three-way connector is connected to the outer shell, the compensation oil tank and the top of the machine body respectively.

2. A vertical helical gear reducer according to claim 1, characterized in that: The outer periphery of the outer casing is provided with a plurality of oil sight holes, a first oil sight hole is provided in the oil sight hole, and a second oil sight is provided on one side of the compensation oil tank.

3. A vertical helical gear reducer according to claim 2, characterized in that: The outer casing has an output cover on the side facing the output shaft end. A first oil seal is provided between the outer casing and the output shaft. The output shaft is fitted with a first labyrinth seal sleeve, which covers the outer casing and the surface of the first oil seal. The machine body has an input cover on the side facing the input shaft end. A plurality of second oil seals are provided between the input shaft and the input cover. The input shaft is fitted with a second labyrinth seal sleeve, which covers the machine body and the surface of the second oil seal.

4. A vertical helical gear reducer according to claim 3, characterized in that: The bearing cavity is provided with a first abutting protrusion for the outer ring of the first bearing to abut against. An adjusting ring is provided at the end of the bearing cavity away from the first abutting protrusion. A second abutting protrusion is provided on the outer periphery of the output shaft for the inner ring of the first bearing to abut against. A nut locking washer is fixedly provided at the end of the output shaft away from the second protrusion. A spacer ring is provided between the nut locking washer and the first bearing. The spacer ring abuts against the inner ring of the first bearing. A locking nut is provided on the top of the nut locking washer to fix the position of the spacer ring.

5. A vertical helical gear reducer according to claim 4, characterized in that: Both the adjusting ring and the outer shell are provided with oil inlet holes. The oil inlet holes are connected to the second oil pipe. The oil inlet holes are provided with a first flared brake pipe connector. The three-way connector is connected to the top of the machine body through a third oil pipe. The top of the machine body is provided with a second flared brake pipe connector connected to the third oil pipe. The top of the machine body is also provided with a tapered pipe threaded taper connector connected to the first pipe.

6. A vertical helical gear reducer according to claim 5, characterized in that: The reduction gear set includes an input shaft with an arc-tooth bevel gear shaft at one end away from the input cover, a gear shaft inside the machine body, the gear shaft being perpendicular to the arc-tooth bevel gear shaft, an arc-tooth bevel gear meshing with the arc-tooth bevel gear shaft on the gear shaft, a retaining tooth on the gear shaft, and a transmission gear meshing with the retaining tooth on the output shaft.

7. A vertical helical gear reducer according to claim 6, characterized in that: The machine body is provided with a gear shaft seat, the gear shaft passes through the gear shaft seat, and a second bearing is provided between the two ends of the gear shaft and the gear shaft seat. The second flared brake pipe joint and the third oil pipe are located above the second bearing.

8. A vertical helical gear reducer according to claim 7, characterized in that: A temperature sensor for detecting the temperature of the reducer and an electric heater for heating the reducer are provided on one side of the housing.

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