CN216691897U - Prevent balance slewing mechanism of foreign matter invasion - Google Patents
Prevent balance slewing mechanism of foreign matter invasion Download PDFInfo
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- CN216691897U CN216691897U CN202220227798.3U CN202220227798U CN216691897U CN 216691897 U CN216691897 U CN 216691897U CN 202220227798 U CN202220227798 U CN 202220227798U CN 216691897 U CN216691897 U CN 216691897U
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Abstract
The utility model discloses a swinging plate rotating mechanism for preventing foreign matter from invading. The mandrel is coaxially and fixedly installed in an inner hole of the bearing seat, a snap spring, a deep groove ball bearing, a thrust ball bearing and a sealing ring are sequentially installed between the bearing seat and the mandrel from bottom to top, the side surface of the outer circumference of the mandrel sequentially comprises a first shaft section, a second shaft section, a fourth shaft section and a fifth shaft section from bottom to top, and the inner hole of the bearing seat sequentially comprises a first hole section, a third hole section and a fourth hole section from bottom to top; a deep groove ball bearing is arranged between the first shaft section and the first hole section, a snap spring is embedded between the first shaft section and the first hole section below the deep groove ball bearing, a thrust ball bearing is arranged between the second shaft section and the third hole section, and a sealing ring is arranged between the fourth shaft section and the fourth hole section; the upper end surface of the bearing seat is provided with a convex edge, and the mandrel is contacted with the convex edge; the upper end face of the bearing seat is provided with a plurality of counter bores, and the outer edges of the counter bores are provided with notches. The utility model has simple structure and excellent protection effect, and ensures the good lubricating effect of the bearing.
Description
Technical Field
The utility model relates to a swinging plate rotating mechanism, in particular to a swinging plate rotating mechanism capable of preventing foreign matters from invading.
Background
The balance wheel sorting machine is a goods sorting device in the logistics transportation industry, and according to different classifications of goods, a steering device of the sorting machine is used for conveying the goods to different outlets, so that the goods sorting function is realized. The manpower can be reduced in balance wheel sorting, the objects needing sorting can be rapidly transmitted, and sorting efficiency is greatly improved. In recent years, the balance wheel sorting machine is widely adopted by the logistics industry due to the outstanding sorting efficiency and stable conveying capacity of the balance wheel sorting machine. The sorting machine with the electric swinging plate is relatively low in cost and wide in application. However, in the transportation process of express delivery logistics, due to the fact that the field environment is severe, the situations of package damage, liquid leakage and the like are often caused, solid powder or liquid enters the electric swinging disc unit, and the sorting machine is damaged.
Liquid can cause the harm to the slewing mechanism of sorting machine when the process sorting machine, because of liquid can flow into the sorting machine inside along the gap on every side of the balance, flow into the slewing mechanism of electronic balance unit bottom, lead to inside liquid gets into the bearing frame, cause corruption or harm to slewing mechanism.
In addition, the logistics working environment is very dusty, and the dust, like solid powder, can cause damage to the rotating mechanism after entering the sorting machine, for example, the dust enters the thrust ball bearing, so that the dust vibrates, generates noise or is quickly worn, even is jammed or burnt out, and the normal operation of the sorting machine is influenced.
The existing sorting machine does not solve the problem that the solid liquid leakage and dust of the logistics production line cause the damage of the swinging plate rotating mechanism.
SUMMERY OF THE UTILITY MODEL
Aiming at the problem that foreign matters such as powder, liquid, environmental dust, moisture and the like leaked by express delivery possibly enter the rotating mechanism, the utility model provides the swinging plate rotating mechanism for preventing the foreign matters from entering. The bellying is used for preventing that liquid gets into, and the opening of counter bore can the water conservancy diversion, and the sealing washer has simultaneously prevents liquid and dustproof function, and the operation safety of giving the bearing frame adds triple insurance, all makes the protection from both ends and other possible places about the bearing frame, prevents that the foreign matter from getting into on the one hand, and on the other hand prevents that inside lubricating oil is excessive, and the protecting effect is good, guarantees that the lubricated respond well of bearing, effectively solves the commodity circulation production line because of the great slewing mechanism's that causes of solid liquid leakage and dust problem.
The technical scheme adopted by the utility model is as follows:
the utility model comprises a bearing seat, a mandrel, a sealing ring, a thrust ball bearing, a deep groove ball bearing and a clamp spring;
the mandrel is coaxially and fixedly installed in an inner hole of the bearing seat, a snap spring, a deep groove ball bearing, a thrust ball bearing and a sealing ring are coaxially installed between the bearing seat and the mandrel from bottom to top in sequence, the outer circumferential side surface of the mandrel sequentially comprises a first shaft section, a second shaft section, a fourth shaft section and a fifth shaft section from bottom to top, and the inner hole of the bearing seat sequentially comprises a first hole section, a third hole section and a fourth hole section from bottom to top;
a deep groove ball bearing is coaxially arranged between the first shaft section and the first hole section, a snap spring is embedded between the first shaft section and the first hole section below the deep groove ball bearing, a thrust ball bearing is coaxially arranged between the second shaft section and the third hole section, and a sealing ring is coaxially arranged between the fourth shaft section and the fourth hole section;
a fifth step surface is formed between the fourth shaft section and the fifth shaft section, a raised edge is arranged on the upper end surface of the bearing seat close to the inner edge, and the fifth step surface covers a fourth hole section of the bearing seat; the upper end face of the bearing seat is provided with a plurality of counter bores which are arranged at intervals along the circumference near the outer edge, and the outer edges of the counter bores are provided with notches.
Still be provided with the second hole section between first hole section and the third hole section, thrust ball bearing installs in second hole section and third hole section, is provided with the clearance between thrust ball bearing and the third hole section, forms the second step face between first hole section and the second hole section, forms first step face between first axle section and the second axle section, and first step face and second step face are not in the coplanar for interval arrangement between deep groove ball bearing and the thrust ball bearing.
Still be provided with the third shaft section between second shaft section and the fourth shaft section, form the fourth step face between second shaft section and the third shaft section, thrust ball bearing installs under the fourth step face for interval arrangement between thrust ball bearing and the sealing washer.
The sealing ring comprises a sealing ring main body and a spring ring; the sealing ring main body is provided with an annular cavity, and a spring ring is arranged in the annular cavity.
Lubricating oil is filled between the inner ring of the sealing ring and the mandrel.
And the deep groove ball bearing is in interference fit with the mandrel.
The deep groove ball bearing is replaced by a cylindrical roller bearing, a needle bearing or an angular contact bearing.
The utility model has the beneficial effects that:
the utility model is provided with the triple protection structure, which not only prevents liquid from invading the bearing seat, but also prevents powder dust from entering the bearing seat; the sealing effect is good; protection is all made from both ends about the bearing frame and other possible places, prevents on the one hand that the foreign matter from getting into, and on the other hand prevents that inside lubricating oil from overflowing, and the protecting effect is good, guarantees that the lubricated effect of bearing is good.
Aiming at the application scene and the working environment of the oscillating wheel machine, the space where the thrust ball bearing of the bearing seat is located is well sealed, so that the oscillating wheel machine can have a good and stable working environment, the stability of the performance of a rotating mechanism of the oscillating wheel unit is ensured, the capability of the oscillating wheel unit for preventing solid powder, liquid and environmental dust from invading is enhanced, the applicability of the oscillating wheel machine is improved, and the service life of the oscillating wheel machine is prolonged.
Drawings
Fig. 1 is a sectional view of a wobble plate rotating mechanism in the embodiment.
Fig. 2 is a sectional view of a bearing housing in the embodiment.
Fig. 3 is an enlarged view of a portion of the bearing seat flange in the area F of fig. 2.
Fig. 4 is a schematic structural diagram of a bearing seat in the embodiment.
Fig. 5 is a schematic structural view of the mandrel in the example.
Fig. 6 is a schematic structural diagram of a seal ring in the embodiment.
FIG. 7 is a sectional view of the seal ring in the embodiment.
In the figure: 1 bearing block, 1-1 first hole section, 1-2 second hole section, 1-3 third hole section, 1-4 fourth hole section, 1-5 counter bore, 1-6 upper end face, 1-7 raised edge, 2 mandrel, 2-1 first shaft section, 2-2 second shaft section, 2-3 third shaft section, 2-4 fourth shaft section, 2-5 fifth shaft section, 3 sealing ring, 3-1 sealing ring main body, 3-2 spring ring, 4 thrust ball bearing, 5 deep groove ball bearing and 6 spring ring.
Detailed Description
The utility model is described in further detail below with reference to the figures and the embodiments.
As shown in fig. 1, the utility model comprises a bearing seat 1, a mandrel 2, a sealing ring 3, a thrust ball bearing 4, a deep groove ball bearing 5 and a clamp spring 6;
the mandrel 2 is coaxially and fixedly installed in an inner hole of the bearing seat 1, a snap spring 6, a deep groove ball bearing 5, a thrust ball bearing 4 and a sealing ring 3 are coaxially installed between the bearing seat 1 and the mandrel 2 from bottom to top in sequence, as shown in fig. 2, fig. 3, fig. 4 and fig. 5, the outer circumferential side surface of the mandrel 2 is a stepped shaft, the stepped shaft sequentially comprises a first shaft section 2-1, a second shaft section 2-2, a fourth shaft section 2-4 and a fifth shaft section 2-5 from bottom to top, the inner hole of the bearing seat 1 is a stepped hole, and the inner hole of the bearing seat 1 sequentially comprises a first hole section 1-1, a third hole section 1-3 and a fourth hole section 1-4 from bottom to top;
a deep groove ball bearing 5 is coaxially arranged between the first shaft section 2-1 and the first hole section 1-1, a snap spring 6 is embedded between the first shaft section 2-1 and the first hole section 1-1 below the deep groove ball bearing 5, and the deep groove ball bearing 5 is in contact with the snap spring 6; the clamp spring 6 is used for supporting the deep groove ball bearing 5 and limiting the deep groove ball bearing 5. The deep groove ball bearing 5 is slightly in interference fit with the mandrel 2, so that dust is prevented from entering from the lower side. A thrust ball bearing 4 is coaxially arranged between the second shaft section 2-2 and the third hole section 1-3, a sealing ring 3 is coaxially arranged between the fourth shaft section 2-4 and the fourth hole section 1-4, and the sealing ring 3 is tightly attached to the mandrel 2 and the bearing seat 1; a fifth step surface is formed between the fourth shaft section 2-4 and the fifth shaft section 2-5, a convex edge 1-7 is arranged on the upper end surface of the bearing seat 1 close to the inner edge, and the fifth step surface covers the fourth hole section 1-4 of the bearing seat 1, so that foreign matters are prevented from invading; the fifth step surface is not contacted with the convex edge 1-7 of the upper end surface of the bearing seat 1, and a gap is reserved for rotation; i.e. the fifth step surface is not in contact with the entire upper end surface of the bearing housing 1.
The upper end surface of the bearing seat 1 is provided with a plurality of counter bores 1-5 which are arranged at equal intervals along the circumference near the outer edge, and the outer edge of the upper parts of the counter bores 1-5 is provided with a gap. The counterbores 1-5 are used for mounting the bearing block 1, and the recesses in the upper outer edges of the counterbores 1-5 allow the liquid flowing into the counterbores 1-5 to be conducted away. The liquid flowing to the upper end face of the bearing seat 1 is blocked to a certain degree through the raised edges 1-7 of the upper end face of the bearing seat 1 and cannot directly flow into the bearing seat, and the liquid blocked by the raised edges 1-7 flows to the counter bores 1-5 and then flows out of the counter bores 1-5. The seal ring also provides a barrier to the flow of liquid beyond the beads 1-7 into the interior of the housing, so that liquid is isolated from the seal ring.
A first step surface is formed between the first shaft section 2-1 and the second shaft section 2-2, referring to fig. 1, the first step surface is a step surface which supports an inner ring of the deep groove ball bearing 5, the deep groove ball bearing 5 is arranged below the first step surface, a second hole section 1-2 is also arranged between the first hole section 1-1 and the third hole section 1-3, a second step surface is formed between the first hole section 1-1 and the second hole section 1-2, a thrust ball bearing 4 is arranged on the second step surface, the thrust ball bearing 4 is arranged in the second hole section 1-2 and the third hole section 1-3, a gap is arranged between the thrust ball bearing 4 and the third hole section 1-3, the first step surface and the second step surface are not positioned on the same plane, namely, the first step surfaces and the second step surfaces are arranged alternately, so that the deep groove ball bearings 5 and the thrust ball bearings 4 are arranged at intervals.
A third step surface is formed between the third hole section 1-3 and the fourth hole section 1-4, and the sealing ring 3 is arranged on the third step surface; a third shaft section 2-3 is further arranged between the second shaft section 2-2 and the fourth shaft section 2-4, a fourth step surface is formed between the second shaft section 2-2 and the third shaft section 2-3, the thrust ball bearing 4 is installed below the fourth step surface, and the third step surface and the fourth step surface are not in the same plane, so that the thrust ball bearing 4 and the sealing ring 3 are arranged at intervals, and the thrust ball bearing 4 is convenient to disassemble.
As shown in fig. 6 and 7, the seal ring 3 is a seal ring with a spring, and includes a seal ring main body 3-1 and a spring ring 3-2; the sealing ring main body 3-1 is provided with an annular cavity, and a spring ring 3-2 is arranged in the annular cavity. When the mandrel is mounted, the seal ring can be in close contact fit with the mandrel. The opening of the annular cavity can be upward or downward depending on the actual situation.
Lubricating oil is filled between the inner ring of the sealing ring 3 and the mandrel 2. Because an oil film controlled by the oil seal cutting edge exists between the sealing ring and the shaft, the oil film has the characteristic of fluid lubrication. Under the action of the surface tension of the liquid, the rigidity of the oil film just enables the oil film and an air contact end to form a meniscus, so that the rotating shaft is sealed, and foreign matters are prevented from entering.
The deep groove ball bearing 5 can also be replaced by a cylindrical roller bearing, a needle bearing or an angular contact bearing.
The principle of preventing foreign matter invasion of the wobble plate rotating mechanism is as follows:
if liquid is to flow into the bearing seat 1, the liquid firstly flows to the upper end face 1-6, then flows over the raised edge 1-7 and passes through the sealing ring 3 to enter the interior of the bearing seat 1.
When liquid flows to the upper end face 1-6 of the bearing seat, the liquid is firstly left in the counter bores 1-5 to flow away because of the fluidity and the gravity action of the liquid; if the liquid does not flow away completely, the liquid is blocked by the convex edges 1-7 of the bearing seat 1, the liquid is isolated outside the inner hole, the liquid flows towards the periphery, and the liquid is prevented from entering the bearing seat;
finally, if the liquid flow is too large, the liquid instantly overflows the convex edges 1-7 of the bearing seat 1, and the sealing ring 3 can also prevent the liquid from invading the inside of the rotating mechanism, so that the cleanness and the safety of the inside of the rotating mechanism are realized.
In addition, the seal ring 3 prevents solid powder and environmental dust from entering the inside of the rotation mechanism, and also prevents the bearing lubricant inside the shaft rotation mechanism from flowing to the outside.
Since the deep groove ball bearing 5 is provided with the sealing ring, the sealing effect is good, and the inner ring of the deep groove ball bearing 5 is tightly matched with the mandrel 2, so that dust and moisture are prevented from entering; a hole where the deep groove ball bearing 5 is matched with the outer ring of the mandrel 2 is blocked by a clamp spring 6, so that dust can be prevented from entering; the mandrel 2 is tightly matched with the sealing ring, and moisture and dust are prevented from entering. Therefore, the space where the thrust ball bearing 4 is located forms good sealing, the thrust ball bearing 4 is greatly protected, the running of the thrust ball bearing is safer and more reliable, and the performance of a single balance wheel unit is more stable and the service life of the balance wheel unit is longer.
The seal ring 3 has a fluid lubrication characteristic because an oil film for controlling the oil seal edge exists between the lubricating oil and the mandrel 2. Under the action of the surface tension of the liquid, the rigidity of the oil film just enables the oil film and an air contact end to form a crescent surface, so that the leakage of a working medium is prevented, and the sealing of the rotary shaft 2 is realized. Preventing silt, dust, water vapor and the like from entering the bearing; the leakage of the lubricating oil in the bearing is also restricted.
Claims (7)
1. A swinging plate rotating mechanism capable of preventing foreign matters from invading is characterized by comprising a bearing seat (1), a mandrel (2), a sealing ring (3), a thrust ball bearing (4), a deep groove ball bearing (5) and a clamp spring (6);
the mandrel (2) is coaxially and fixedly installed in an inner hole of the bearing seat (1), a clamp spring (6), a deep groove ball bearing (5), a thrust ball bearing (4) and a sealing ring (3) are sequentially and coaxially installed between the bearing seat (1) and the mandrel (2) from bottom to top, the side face of the outer circumference of the mandrel (2) sequentially comprises a first shaft section (2-1), a second shaft section (2-2), a fourth shaft section (2-4) and a fifth shaft section (2-5) from bottom to top, and the inner hole of the bearing seat (1) sequentially comprises a first hole section (1-1), a third hole section (1-3) and a fourth hole section (1-4) from bottom to top;
a deep groove ball bearing (5) is coaxially arranged between the first shaft section (2-1) and the first hole section (1-1), a snap spring (6) is embedded between the first shaft section (2-1) and the first hole section (1-1) below the deep groove ball bearing (5), a thrust ball bearing (4) is coaxially arranged between the second shaft section (2-2) and the third hole section (1-3), and a sealing ring (3) is coaxially arranged between the fourth shaft section (2-4) and the fourth hole section (1-4);
a fifth step surface is formed between the fourth shaft section (2-4) and the fifth shaft section (2-5), a raised edge (1-7) is arranged at the position, close to the inner edge, of the upper end surface (1-6) of the bearing seat (1), and the fifth step surface covers the fourth hole section (1-4) of the bearing seat (1); the upper end surface of the bearing seat (1) is provided with a plurality of counter bores (1-5) which are arranged at intervals along the circumference near the outer edge, and the outer edges of the counter bores (1-5) are provided with gaps.
2. The wobble plate rotating mechanism capable of preventing foreign matter intrusion according to claim 1, wherein a second hole section (1-2) is further arranged between the first hole section (1-1) and the third hole section (1-3), a thrust ball bearing (4) is installed in the second hole section (1-2) and the third hole section (1-3), a gap is arranged between the thrust ball bearing (4) and the third hole section (1-3), a second step surface is formed between the first hole section (1-1) and the second hole section (1-2), a first step surface is formed between the first shaft section (2-1) and the second shaft section (2-2), and the first step surface and the second step surface are not located on the same plane, so that the deep groove ball bearing (5) and the thrust ball bearing (4) are arranged at intervals.
3. The mechanism of claim 1, wherein a third shaft section (2-3) is further arranged between the second shaft section (2-2) and the fourth shaft section (2-4), a fourth step surface is formed between the second shaft section (2-2) and the third shaft section (2-3), and the thrust ball bearing (4) is arranged below the fourth step surface, so that the thrust ball bearing (4) and the sealing ring (3) are arranged at intervals.
4. The mechanism of claim 1, wherein the seal ring (3) comprises a seal ring main body (3-1) and a spring ring (3-2); the sealing ring main body (3-1) is provided with an annular cavity, and a spring ring (3-2) is arranged in the annular cavity.
5. The mechanism of claim 1, wherein a lubricant is filled between the inner ring of the seal ring (3) and the spindle (2).
6. The wobble plate rotating mechanism for preventing the intrusion of foreign objects according to claim 1, wherein the deep groove ball bearing (5) is in interference fit with the spindle (2).
7. The wobble plate rotating mechanism preventing intrusion of foreign objects as claimed in any one of claims 1, 2 and 4, wherein the deep groove ball bearing (5) is replaced by a cylindrical roller bearing, a needle roller bearing or an angular contact bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220227798.3U CN216691897U (en) | 2022-01-27 | 2022-01-27 | Prevent balance slewing mechanism of foreign matter invasion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220227798.3U CN216691897U (en) | 2022-01-27 | 2022-01-27 | Prevent balance slewing mechanism of foreign matter invasion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216691897U true CN216691897U (en) | 2022-06-07 |
Family
ID=81822400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220227798.3U Active CN216691897U (en) | 2022-01-27 | 2022-01-27 | Prevent balance slewing mechanism of foreign matter invasion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216691897U (en) |
-
2022
- 2022-01-27 CN CN202220227798.3U patent/CN216691897U/en active Active
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