Bearing oiling mechanism of medicinal particle stirrer
By designing a bearing lubrication mechanism in a pharmaceutical granule mixer, the problem of severe bearing wear was solved, enabling timely addition of lubricating oil and temperature control, reducing friction and wear, extending bearing service life, and improving production efficiency.
Patent Information
- Application Number
- CN202520777820.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-04-23
AI Technical Summary
The bearings of pharmaceutical granule mixers suffer from severe wear due to long-term bias torque, resulting in reduced lubrication, increased failure rate and maintenance costs, and time-consuming and labor-intensive equipment repair.
A bearing lubrication mechanism was designed, including a lubrication pipe, a lubrication seat, a lubrication solenoid valve, and an oil reservoir. The lubrication pipe slowly drips lubricating oil into the cage of the tapered roller bearing. Combined with thermocouple sensors and vibration sensors, lubrication and cooling are achieved, reducing friction and wear.
It enables timely addition of lubricating oil and temperature control, reduces friction and wear, extends bearing life, reduces downtime, and improves production efficiency.
Smart Images

Figure CN223826037U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medicinal granule stirring machine support bearing technical field, concretely relates to a medicinal granule stirring machine bearing oiling mechanism. BACKGROUND
[0002] Medicinal granule stirring machine usually includes stirring box and the sealing cover that covers in the top of stirring box, stirring box fixedly connected on support platform, be provided with stirring vane in stirring box, stirring vane rotates and connects on bearing support device after sealing and extending out stirring box through stirring drive shaft, lower end continues to extend and is fixedly connected driven belt large wheel, bearing support device connects on support platform bottom, driven belt large wheel is connected to drive motor through belt, drive motor is installed on motor frame on support platform bottom, because the equipment size is big, support platform facilitates personnel to go up after loading through the ladder, driven belt large wheel is as heavy as 800 many jin, bearing support device is influenced by the long-term biasing moment of lower driven belt large wheel, the lower side's tapered roller bearing inside bearing support device wears seriously, further lead to bearing gap too big, stirring drive shaft jounce is bigger, further intensify the damage of bearing, high failure rate, when overhauling, crane cooperates manual installation, but because the equipment is big, the weight of lower belt pulley is heavy, after failure, once needs to stop work 3-5 days, and is time-consuming and laborious, greatly increase the labor cost, wear too big is also because the long-term friction of lubricating oil is too big and leads to the temperature of heating too high, further make the lubrication effect decline leads to. SUMMARY
[0003] The utility model solves the technical problem that provides a medicinal granule stirring machine bearing oiling mechanism, can realize the lubricating oil of bearing timely addition, improve lubrication effect, reduce friction and cooling, reduce wear and tear, improve bearing service life.
[0004] The utility model discloses a particle stirring machine bearing oiling mechanism, including oiling pipe, oiling seat, oiling solenoid valve and oil tank, the oil tank is installed at the top of oiling seat outer end, and the oiling seat is fixedly connected on the bearing sleeve, and the oiling seat is provided with oil passage in, and the oil inlet of oil passage is connected to the oil outlet of oil tank, and the oil outlet of oil passage is connected to the oiling pipe, and the oiling pipe is arranged from the hole of bearing sleeve side wall and is located above the lower tapered roller bearing and the end is opposite the cage of tapered roller bearing, and the oiling solenoid valve is installed on the oiling seat and controls the opening and closure of oil passage.
[0005] Further, the distance between the oiling pipe and the cage is 5-10mm.
[0006] Further, the oiling pipe is inclinedly arranged.
[0007] Further, the bearing sleeve is provided with a thermocouple sensor, and the inner segment of the thermocouple sensor contacts the outer ring of the lower tapered roller bearing.
[0008] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model, by setting up a bearing lubrication mechanism, puts cooling lubricating oil into the oil tank. When cooling and lubrication are required, the solenoid valve is controlled to open the oil passage, and the oil in the oil tank slowly enters the lubrication pipe. The lubrication pipe slowly drips into the cage of the tapered roller bearing, and under the action of rotation, it lubricates the entire roller and achieves the functions of cooling and lubrication. Lubrication is convenient and quick. After lubrication and cooling, the tapered roller bearing has slow friction and wear and a longer service life. Attached Figure Description
[0009] Figure 1 A three-dimensional structural diagram of the bearing support device for a pharmaceutical granule mixer;
[0010] Figure 2 Schematic diagram of the isometric structure of the bearing support device for a pharmaceutical granulation mixer.
[0011] Figure 3 This is a three-dimensional structural diagram of the bearing support device for a pharmaceutical granule mixer from another perspective.
[0012] Figure 4 This is a rear view schematic diagram of the bearing support device for a pharmaceutical granule mixer.
[0013] Figure 5 This is a right-side structural schematic diagram of the bearing support device for a pharmaceutical granule mixer.
[0014] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure of the middle CC section;
[0015] Figure 7 for Figure 4 Schematic diagram of the cross-sectional structure of the middle DD;
[0016] Figure 8 for Figure 4 Schematic diagram of the cross-sectional structure of the EE;
[0017] Figure 9 A bottom view schematic diagram of the bearing support device for a pharmaceutical granule mixer;
[0018] Figure 10 This is a schematic diagram of the swing detection mechanism.
[0019] Figure 11 This is a schematic diagram of the swing detection mechanism.
[0020] Figure 12 Schematic diagram of a bearing lubrication mechanism;
[0021] Figure 13 This is a schematic diagram of the worm gear mounting area. Detailed Implementation
[0022] Example 1: As Figure 1 and 12 As shown, a lubrication mechanism for a pellet mixer bearing includes a lubrication pipe 1101, a lubrication seat 1102, a lubrication solenoid valve 1103, and an oil storage tank 1104. The oil storage tank 1104 is installed on the top of the outer end of the lubrication seat 1102. The lubrication seat 1102 is fixedly connected to the bearing sleeve 2. An oil passage 1105 is provided inside the lubrication seat 1102. The oil inlet end of the oil passage 1105 is connected to the oil outlet of the oil storage tank 1104, and the oil outlet end of the oil passage 1105 is connected to the lubrication pipe 1101. The lubrication pipe 1101 extends through a through hole 1106 provided on the side wall of the bearing sleeve 2 and is located on the lower tapered roller bearing. Above and directly opposite the cage of the tapered roller bearing 1, a solenoid valve 1103 is mounted on a lubrication seat 1102 to control the opening and closing of the oil passage 1105. By setting up a small bearing lubrication mechanism, cooling lubricating oil is placed in the oil reservoir. When cooling lubrication is required, the solenoid valve is controlled to open the oil passage, and the oil in the oil reservoir slowly enters the lubrication pipe. The lubrication pipe slowly drips into the cage of the tapered roller bearing, and under the action of rotation, it lubricates the entire roller and cools it down. Lubrication is convenient and quick. After lubrication and cooling, the tapered roller bearing experiences slow friction and wear, resulting in a longer service life.
[0023] Example 2: Figures 1-13 As shown, a bearing support device for a pharmaceutical granule mixer includes two tapered roller bearings 1, a bearing sleeve 2, and a locking sleeve 3. The two tapered roller bearings 1 are connected to a stirring drive shaft 4 and arranged vertically. The bearing sleeve 2 is fitted over the two tapered roller bearings 1, and its upper end is fixed to a support platform 6 via a flange 5. The locking sleeve 3 is spirally connected to the lower end of the bearing sleeve 2. The locking sleeve 3 is movably fitted over the stirring drive shaft 4, and its upper end can abut against the inner ring of the tapered roller bearing 1 on the lower side. The lower end of the locking sleeve 3 is vertically movably connected to an annular worm gear 7 that is coaxial with it. The annular worm gear 7 is movably fitted over the stirring drive shaft 4. In addition, the worm 8, which meshes with the annular worm gear 7, is horizontally rotating on the cantilever frame 9. The cantilever frame 9 is fixedly connected to the bottom of the support platform 6. The worm 8 is connected to a reduction motor 10, which is mounted on the support platform 6 via a motor frame. By adding a locking sleeve under the bearing and driving the worm gear to rotate the locking sleeve through the motor, the locking adjustment can be performed quickly. This allows for the adjustment of the clearance of the loose tapered roller bearing on the lower side without the need for manual clearance adjustment maintenance, saving time and effort. It also eliminates the need for long-term downtime or eliminates the need for downtime, allowing for quick clearance adjustment or online adjustment, which greatly improves production efficiency.
[0024] To cool the lower tapered roller bearing, a bearing lubrication mechanism 11 is installed on the side wall of the bearing sleeve 2. The lubrication mechanism 11 includes a lubrication pipe 1101, a lubrication seat 1102, a lubrication solenoid valve 1103, and an oil reservoir 1104. The oil reservoir 1104 is installed on the top outer end of the lubrication seat 1102, which is fixedly connected to the bearing sleeve 2. An oil passage 1105 is provided inside the lubrication seat 1102. The inlet end of the oil passage 1105 is connected to the outlet end of the oil reservoir 1104, and the outlet end of the oil passage 1105 is connected to the lubrication pipe 1101. The lubrication pipe 1101 extends from a through hole 110 on the side wall of the bearing sleeve 2. The 6-section extends into the lower tapered roller bearing 1 and is positioned above it with its end directly facing the cage of the tapered roller bearing 1. The oil filling solenoid valve 1103 is mounted on the oil filling seat 1102 to control the opening and closing of the oil passage 1105. By setting up a small bearing oil filling mechanism, cooling lubricating oil is placed into the oil reservoir. When cooling and lubrication are required, the solenoid valve is controlled to open the oil passage, and the oil in the oil reservoir slowly enters the oil filling pipe. The oil filling pipe slowly drips into the cage of the tapered roller bearing, and under the action of rotation, it lubricates the entire roller and cools it down. The oil filling is convenient and quick. After lubrication and cooling, the tapered roller bearing experiences slow friction and wear, resulting in a longer service life.
[0025] To better facilitate oil filling, the distance between the oil filling pipe 1101 and the cage of the tapered roller bearing on the lower side is 5-10mm. This distance ensures that the oil drips steadily into the cage. To facilitate the full dripping of oil into the cage, the oil filling pipe 1101 is arranged at an angle.
[0026] To achieve accurate lubrication, a thermocouple sensor 1107 is installed on the bearing sleeve 2. The inner section of the thermocouple sensor 1107 contacts the outer ring of the tapered roller bearing 1 on the lower side. According to the temperature change, when the set threshold is reached, the cage is lubricated. After adding the set amount of oil, the lubrication is stopped. After running for a period of time, the temperature is collected again. If the temperature is lower than the set threshold, the lubrication continues. The lubrication is stopped when the set temperature is met. This can achieve accurate lubrication and avoid over- or under-lubrication, thus achieving better lubrication control.
[0027] To monitor the clearance of tapered roller bearings, a bearing support device for a pharmaceutical granulator mixer further includes a swing detection mechanism 12. The swing detection mechanism 12 includes a detection sensor 1201, a vertical pipe 1202, a connecting plate 1203, and a T-slot plate 1204. The detection sensor 1201 is installed at the lower end of the vertical pipe 1202, with its probe facing the edge of the driven belt pulley 14 fixedly connected to the lower end of the mixing drive shaft 4. The connecting plate 1203 is fixedly connected to the upper end of the vertical pipe 1202. The connecting plate 1203 is fixedly connected to the T-slot plate 1204 by T-screws 1205 and nuts 1206. The T-slot plate 1204 is fixedly connected to the bottom of the support platform 6. The neutral plane of the two rows of T-slots of the T-slot plate 1204 is aligned with... The stirring drive shaft is coplanar. The movement of the driven belt pulley over a long distance is used to map the clearance of the tapered roller bearing below, enabling more accurate monitoring. Even small movements are amplified by feedback to the driven belt pulley, and the large movement of the driven belt pulley is used to infer the corresponding bearing clearance, thus achieving more precise monitoring. When the monitored data exceeds a set threshold, the reduction motor is activated, which drives the worm gear to rotate the locking sleeve, thereby adjusting the clearance of the tapered roller bearing below. The detection sensor is mounted in a vertical tube for easy cable routing. The T-slot plate with T-screws connects to the connecting plate, facilitating easy and quick adjustment of the sensor's position relative to the driven pulley.
[0028] The signal line of the detection sensor 1201 passes through the inside of the vertical tube 1202 and then exits from the wire outlet 1207 located at the top. The structure is compact, avoiding messy cables and preventing interference with probe testing.
[0029] To enable fault diagnosis, a vibration sensor 13 is also installed on the bearing sleeve 2. When the vibration data of the vibration sensor exceeds the set threshold, it is determined that the equipment is damaged and needs to be repaired.
[0030] The worm gear mechanism consisting of worm gear 7 and worm 8 adopts a self-locking worm gear mechanism. The self-locking worm gear further strengthens the locking effect and prevents the locking sleeve from loosening. The worm gear 7 is provided with a sliding keyway 701. The lower end of the locking sleeve 3 is provided with a sliding sleeve 301. The sliding sleeve 301 is provided with a protruding sliding key 302. The sliding key 302 is movably embedded in the sliding keyway 701. A thrust bearing 15 is installed on the lower side of the worm gear 7 and is kept coaxial with it. The thrust bearing 15 is mounted on an annular tray 16. The annular tray 16 is fixedly connected to the cantilever frame 9 through a tray frame 17. The annular tray 16 supports the thrust bearing, and the thrust bearing supports the worm gear, playing an auxiliary supporting role for the worm gear. The worm gear drives the locking sleeve to rotate, but the worm gear does not move up and down. The sliding sleeve at the lower end of the locking sleeve moves up and down relative to the worm gear, realizing the locking and unlocking of the locking sleeve.
[0031] Example 3: A bearing clearance adjustment method for a pharmaceutical granule mixer bearing support device is as follows: When the tapered roller bearing on the lower side wears, it causes the mixing drive shaft to jump, which in turn reflects the jump of the driven belt pulley fixedly connected to the lower end of the mixing drive shaft. When the detection sensor detects that the jump value of the driven belt pulley is greater than a set threshold, the reduction motor is started, driving the worm gear to rotate in the direction of the locking sleeve, which in turn drives the worm wheel to rotate. The worm wheel drives the locking sleeve to rotate, and the locking sleeve drives the inner ring of the lower tapered roller bearing to move inward. When the jump detected by the detection sensor is less than the set threshold, the clearance between the inner ring and the roller of the tapered roller bearing reaches the design requirements of the tapered roller bearing, and the reduction motor stops operating.
Claims
1. A bearing lubrication mechanism for a pharmaceutical granule mixer, characterized in that, The system includes a filling pipe (1101), a filling seat (1102), a filling solenoid valve (1103), and an oil storage tank (1104). The oil storage tank (1104) is installed on the top of the outer end of the filling seat (1102). The filling seat (1102) is fixedly connected to the bearing sleeve (2). An oil passage (1105) is provided inside the filling seat (1102). The oil inlet end of the oil passage (1105) is connected to the oil outlet of the oil storage tank (1104). The oil outlet end of the oil passage (1105) is connected to the filling pipe (1101). The filling pipe (1101) extends from the through hole (1106) provided on the side wall of the bearing sleeve (2) and is located above the lower tapered roller bearing (1) with its end facing the cage of the tapered roller bearing (1). The filling solenoid valve (1103) is installed on the filling seat (1102) to control the opening and closing of the oil passage (1105).
2. The bearing lubrication mechanism for a pharmaceutical granule mixer according to claim 1, characterized in that, The distance between the refueling pipe (1101) and the cage is 5-10mm.
3. The bearing lubrication mechanism for a pharmaceutical granule mixer according to claim 1, characterized in that, The refueling pipe (1101) is arranged at an angle.
4. The bearing lubrication mechanism for a pharmaceutical granule mixer according to claim 1, characterized in that, A thermocouple sensor (1107) is installed on the bearing sleeve (2), and the inner section of the thermocouple sensor (1107) contacts the outer ring of the tapered roller bearing (1) on the lower side.