Tension wheel assembly
By introducing dustproof and lubrication components into the tensioner assembly, the problems of bearing loosening and wear were solved, achieving stable bearing operation and efficient lubrication, and improving overall performance and reliability.
Patent Information
- Application Number
- CN202520504267.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-03-21
AI Technical Summary
In traditional tensioner assemblies, the connection between the bearing and the axle is not secure enough, leading to loosening, which affects the stability of speed and torque. Furthermore, the lack of effective dust prevention measures and precise lubrication results in increased wear, reducing reliability and durability.
The bearing employs dustproof and lubrication components. The dustproof component uses an outer and inner ring design to block dust and moisture, while the lubrication component uses a main oil groove and a distribution oil groove to achieve uniform oil penetration, ensuring that the bearing operates in a clean and dry environment and is fully lubricated.
It improves bearing stability and lubrication, prevents impurities from entering, extends service life, reduces downtime and maintenance costs, and ensures efficient power transmission and stable operation.
Smart Images
Figure CN223754564U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a tensioner assembly belongs to tensioner technical field. BACKGROUND
[0002] Traditional tensioner assembly has some deficiencies in design. On the one hand, the sleeve connection mode of bearing and axle is often not firm enough, which leads to the bearing inner ring to appear loose in the rotation process, and further affects the rotational speed and torque stability of the belt pulley, reduces the efficiency of power transmission. On the other hand, the lack of effective dustproof measures makes dust, moisture and other impurities easily invade the bearing interior, which leads to the bearing wear and tear aggravation, service life shortening, and also increases the downtime and cost caused by maintenance or replacement of parts.
[0003] In addition, the traditional lubrication mode is often not accurate and efficient, and the oil is difficult to uniformly and fully penetrate into the bearing interior, which leads to poor bearing lubrication, further aggravating the bearing wear and tear and failure risk. These problems not only affect the reliability and durability of the tensioner assembly, but also limit the overall performance and operating efficiency of the mechanical system. SUMMARY
[0004] In view of the above technical deficiencies, the utility model aims at providing a tensioner assembly, which effectively blocks the invasion of dust, moisture and other impurities, and ensures that the bearing is in a clean and dry working environment.
[0005] To solve the above technical problems, the utility model adopts the following technical scheme: the utility model provides a tensioner assembly, which comprises:
[0006] An axle;
[0007] A bearing is sleeved on the axle;
[0008] A belt pulley is fixedly sleeved on the bearing;
[0009] Two dustproof components are arranged on the two sides of the bearing respectively, and are used for preventing dust from entering the interior of the bearing.
[0010] Preferably, the dustproof component comprises:
[0011] An outer ring is fixedly connected to the belt pulley;
[0012] An inner ring is fixedly connected to the inner ring of the bearing;
[0013] Wherein, a ring groove is formed in the side wall of the outer ring, and the outer ring of the inner ring extends to the interior of the ring groove.
[0014] Preferably, the ring groove and the outer ring of the inner ring have a gap.
[0015] Preferably, the ring groove and the inner ring are provided with inclined slopes.
[0016] Preferably, the lower end of the wheel shaft is provided with a support, and the support is provided with a mounting hole.
[0017] Preferably, the upper and lower sides of the bearing are respectively sleeved with an upper grommet and a lower grommet on the wheel shaft.
[0018] The lower end of the upper grommet abuts against the inner ring on the upper side of the bearing.
[0019] The lower end of the lower grommet abuts against the side wall of the support, and the upper end abuts against the inner ring on the lower side of the bearing.
[0020] Preferably, the upper end of the wheel shaft is engaged with a locking nut, and an elastic gasket is arranged between the locking nut and the upper grommet.
[0021] Preferably, the lubricating assembly comprises:
[0022] A main oil groove is arranged in the interior of the wheel shaft along the center line of the wheel shaft.
[0023] A distribution oil groove is arranged in the interior of the wheel shaft along the radial direction of the wheel shaft, one end of the distribution oil groove is communicated with the main oil groove, and the other end of the distribution oil groove extends to the exterior of the wheel shaft.
[0024] When the bearing is sleeved on the wheel shaft, the extension end of the distribution oil groove is located on both sides of the bearing.
[0025] Preferably, a flow guide groove communicated with the distribution oil groove is arranged at the connection position between the inner ring and the inner ring of the bearing.
[0026] Preferably, the port of the main oil groove is engaged with a plug.
[0027] Compared with the prior art, the utility model has the advantages that:
[0028] 1、The utility model discloses a firm sleeve of the bearing and the wheel shaft ensures the fixity of the inner ring of the bearing, and the stable rotation of the outer ring of the bearing provides the stable rotating speed and torque for the belt pulley, which is the basis for realizing the high -efficient power transmission. Meanwhile, the dustproof assembly further enhances the reliability and durability of the tensioner assembly. The assembly can effectively block the invasion of impurities such as dust, moisture and the like, and create a clean, dry working environment for the bearing. This not only reduces the risk of damage to the bearing due to impurity invasion, but also prolongs the service life of the tensioner assembly, reduces the downtime and cost caused by maintenance or replacement of parts.
[0029] 2, the utility model discloses a main oil tank is injected with the oil liquid of proper amount to the inside, and the oil liquid flows along the passageway of main oil tank and finally enters the oil tank of communication with main oil tank, and the oil tank makes the oil liquid flow along the radial direction of wheel axle, and until its extension end is located at the both sides of bearing. At this time, the oil liquid enters the inside of guide groove through the communication of oil tank and guide groove. Guide groove further guides the oil liquid, and ensures that it can accurately flow into the inside of bearing, lubricates bearing sufficiently, thereby guaranteeing the long-term stable operation of the expansion wheel assembly. BRIEF DESCRIPTION OF DRAWINGS
[0030] Figure 1 It is the structure schematic diagram of the utility model;
[0031] Figure 2 It is the overall sectional view of the utility model;
[0032] Figure 3 It is the structure schematic diagram of the utility model's pulley, outer ring and inner ring; Figure 2 It is the enlarged view of A of the utility model;
[0033] Figure 4 It is the explosion view of the pulley, outer ring and inner ring of the utility model;
[0034] Figure 5 It is the structure schematic diagram of the wheel axle and support of the utility model;
[0035] Figure 6 It is the structure schematic diagram of the wheel axle, bearing and support of the utility model.
[0036] In the drawing:
[0037] 1, wheel axle, 2, bearing, 3, pulley, 4, elastic gasket;
[0038] 5, dustproof assembly, 501, outer ring, 502, inner ring, 503, ring groove;
[0039] 6, lubricating assembly, 601, main oil tank, 602, oil tank, 603, plug cap, 604, guide groove;
[0040] 7, support, 701, mounting hole;
[0041] 8, upper gasket ring, 9, lower gasket ring;
[0042] 10, locking nut. DETAILED DESCRIPTION
[0043] The utility model will be explained with specific implementation examples below, but is not the limitation of the utility model.
[0044] Example one
[0045] As Figures 1-6As shown, in this embodiment, the provided tensioner assembly includes an axle 1; the axle 1 is sleeved with a bearing 2; the outer ring of the bearing 2 is fixedly sleeved with a belt pulley 3; the two sides of the bearing 2 are respectively provided with a dustproof assembly 5 for preventing dust from entering the bearing 2.
[0046] Working process:
[0047] In the working process of the tensioner assembly, since the bearing 2 is firmly sleeved on the axle 1, the inner ring of the bearing 2 is fixed relative to the axle 1, and the outer ring of the bearing 2 can rotate stably to ensure that the belt pulley 3 can work at a stable rotating speed and torque. The belt pulley 3 is connected with other mechanical components through a transmission belt, realizing power transmission.
[0048] At the same time, the dustproof assembly 5 can effectively block the invasion of impurities such as dust and moisture during the entire working process. This not only protects the bearing from damage, but also ensures that the tensioner assembly can work stably for a long time.
[0049] Embodiment two
[0050] As shown, Figures 2-4 On the basis of embodiment one, in order to prevent dust from entering the inside of the bearing 2, the dustproof assembly 5 of this embodiment includes an outer ring 501 and an inner ring 502, the outer ring 501 is fixedly connected on the belt pulley 3; the inner ring 502 is fixedly connected on the inner ring of the bearing 2; wherein the side wall of the outer ring 501 is provided with a ring groove 503, and the outer ring of the inner ring 502 extends to the inside of the ring groove 503. There is a gap between the ring groove 503 and the outer ring of the inner ring 502 for preventing sliding friction between the ring groove 503 and the inner ring 502.
[0051] The ring groove 503 and the inner ring 502 are both provided with inclined slopes.
[0052] The lower end of the axle 1 is provided with a support 7, and the support 7 is provided with a mounting hole 701.
[0053] The upper and lower sides of the axle 1 are respectively sleeved with an upper grommet 8 and a lower grommet 9;
[0054] The lower end of the upper grommet 8 abuts against the inner ring 502 on the upper side of the bearing 2;
[0055] The lower end of the lower grommet 9 abuts against the side wall of the support 7, and the upper end abuts against the inner ring 502 on the lower side of the bearing 2. The upper end of the axle 1 is engagedly connected with a locking nut 10, and the locking nut 10 and the upper grommet 8 are provided with an elastic gasket 4.
[0056] Working process:
[0057] In the working process of the tensioner assembly, the axle 1 rotates stably under the support of the bracket 7. The bearing 2 and its associated inner ring 502 work smoothly with the rotation of the axle 1. The outer ring 501 in the dustproof assembly 5 tightly matches the inner ring 502, and through the gap design between the ring groove 503 and the outer ring of the inner ring 502, it effectively prevents dust and other impurities from entering the inside of the bearing 2. At the same time, the design of the inclined slope further enhances the dustproof effect and reduces the possibility of impurities entering.
[0058] The upper gasket ring 8 and the lower gasket ring 9 are located on the upper and lower sides of the bearing 2 respectively, providing additional support and cushioning to ensure the stability and reliability of the dustproof assembly 5. The elastic gasket 4 plays a cushioning role between the locking nut 10 and the upper gasket ring 8, preventing excessive tightening force from causing damage to the components. The locking nut 10 firmly fixes the entire tensioner assembly on the bracket 7, ensuring its stability and efficiency during the working process.
[0059] Example Three
[0060] As Figures 2-5 shown, on the basis of Example Two, in order to be able to lubricate the bearing 2, this embodiment also includes a lubricating assembly 6, which includes a main oil groove 601 and a sub-oil groove 602. The main oil groove 601 is opened inside the axle 1 along the center line of the axle 1; the sub-oil groove 602 is opened inside the axle 1 along the radial direction of the axle 1, one end of the sub-oil groove 602 communicates with the main oil groove 601, and the other end of the sub-oil groove 602 extends to the outside of the axle 1.
[0061] When the bearing 2 is sleeved on the axle 1, the extension end of the sub-oil groove 602 is located on both sides of the bearing 2.
[0062] The inner ring 502 is connected with the inner ring of the bearing 2, and a flow guide groove 604 is opened at the connection position of the inner ring 502 and the bearing 2, which communicates with the sub-oil groove 602.
[0063] The port of the main oil groove 601 is engaged with a plug 603.
[0064] Working process:
[0065] When the bearing 2 needs to be lubricated, first remove the plug 603 to expose the port of the main oil groove 601. Then, inject an appropriate amount of oil into the inside of the main oil groove 601 through the port. The oil flows along the channel of the main oil groove 601 under the action of gravity and / or pressure, and finally enters the sub-oil groove 602 which communicates with the main oil groove 601.
[0066] The oil distribution groove 602 enables the oil to flow along the radial direction of the wheel shaft 1 until the extending end thereof is located on both sides of the bearing 2. At this time, the oil enters the inside of the flow guide groove 604 through the communication between the oil distribution groove 602 and the flow guide groove 604. The flow guide groove 604 further guides the oil to ensure that the oil can accurately flow into the inside of the bearing 2 to sufficiently lubricate the bearing 2.
[0067] After the lubrication is completed, the plug cap 603 is reinstalled to close the port of the main oil groove 601 to prevent the oil from leaking. In this way, through the cooperation of the lubricating assembly 6, the bearing 2 is sufficiently lubricated to ensure the long-term stable operation of the tensioner assembly.
[0068] Finally, it should be noted that the above embodiments are only used to illustrate but not to limit the technical solutions of the present application. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present application can still be modified or replaced by equivalents without departing from the spirit and scope of the present application. Any modification or partial replacement should be covered in the scope of the claims of the present application.
Claims
1. A tensioner assembly, characterized in that, Include: Wheel shaft (1); Bearing (2), the bearing (2) is sleeved on the wheel shaft (1); Pulley (3), the pulley (3) is fixedly sleeved on the bearing (2); Two dustproof assemblies (5), two dustproof assemblies (5) are respectively arranged on both sides of the bearing (2), for preventing dust from entering the inside of the bearing (2).
2. A tensioner assembly according to claim 1, wherein The dustproof assembly (5) comprises: The outer ring (501) is fixedly connected on the pulley (3); The inner ring (502) is fixedly connected on the inner ring of the bearing (2); Wherein, the side wall of the outer ring (501) is provided with a ring groove (503), and the outer ring of the inner ring (502) extends to the inside of the ring groove (503).
3. A tensioner assembly according to claim 2, wherein, The ring groove (503) and the outer ring of the inner ring (502) have a gap.
4. A tensioner assembly as described in claim 3, wherein, The ring groove (503) and the inner ring (502) are provided with inclined slopes.
5. A tensioner assembly according to claim 2, wherein, The lower end of the wheel shaft (1) is provided with a support (7), and the mounting hole (701) is formed in the support (7).
6. A tensioner assembly as described in claim 5, wherein, The upper and lower sides of the wheel shaft (1) and the bearing (2) are respectively sleeved with an upper gasket (8) and a lower gasket (9); The lower end of the upper gasket (8) abuts on the inner ring (502) on the upper side of the bearing (2); The lower end of the lower gasket (9) abuts on the side wall of the support (7), and the upper end abuts on the inner ring (502) on the lower side of the bearing (2).
7. A tensioner assembly as described in claim 6, wherein, The upper end of the wheel shaft (1) is engagedly connected with a locking nut (10), and the locking nut (10) and the upper gasket (8) are provided with an elastic gasket (4).
8. A tensioner assembly according to claim 2, wherein, It also includes a lubricating assembly (6), which comprises: The main oil groove (601) is formed in the inside of the wheel shaft (1) along the center line of the wheel shaft (1); The oil distribution groove (602) is formed in the inside of the wheel shaft (1) along the radial direction of the wheel shaft (1), one end of the oil distribution groove (602) is communicated with the main oil groove (601), and the other end of the oil distribution groove (602) extends to the outside of the wheel shaft (1); When the bearing (2) is sleeved on the wheel shaft (1), the extension end of the oil distribution groove (602) is located on both sides of the bearing (2).
9. A tensioner assembly as described in claim 8, wherein, The inner ring (502) and the inner ring of the bearing (2) are connected, and the flow guide groove (604) communicated with the oil distribution groove (602) is formed.
10. A tensioner assembly as described in claim 8, wherein, The port of the main oil groove (601) is engagedly connected with a plug (603).