Anti-slip synchronous belt pulley with high transmission efficiency

Abstract

The utility model discloses a high transmission efficiency anti-slip synchronous belt pulley which comprises a main body and a front cover, the main body is provided with an outer ring body and an inner ring body, the periphery of the outer ring body is provided with a plurality of first convex teeth and first clamping grooves at intervals, the outer end of the outer ring body is further provided with a plurality of second clamping grooves, and the first clamping grooves are communicated with the second clamping grooves. The periphery of the clamping ring is connected with a plurality of second protruding teeth through connecting ribs, ceramic layers are arranged at the ends of the second protruding teeth, the clamping ring is inserted into the inner periphery of the outer ring body, the connecting ribs are clamped into the corresponding second clamping grooves, the second protruding teeth are clamped into the first clamping grooves, and the first protruding teeth and the second protruding teeth form dense teeth of the belt wheel. After being matched with a transmission belt, the transmission device is not prone to slipping, and therefore the transmission efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to a high transmission efficiency anti-skid synchronous belt pulley. Background Art

[0002] In the prior art, the main reason for slippage when the transmission belt and the synchronous pulley cooperate for transmission is that the convex teeth of the synchronous pulley are worn due to long-term use, and thus cannot fit tightly with the transmission belt; if the occurrence of the above situation is to be reduced, on the one hand, it is possible to consider improving the wear resistance of the convex teeth, and on the other hand, setting more densely packed convex teeth can also reduce the occurrence of slippage under the premise of convex teeth wear. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a synchronous pulley which is not prone to slipping and thus improves transmission efficiency.

[0004] The technical solution of the utility model is: a high transmission efficiency anti-skid synchronous pulley, comprising a main body and a front cover, the main body is provided with an outer ring body and an inner ring body, the inner periphery of the outer ring body and the outer periphery of the inner ring body are kept at a distance, a plurality of first convex teeth and first grooves are arranged at intervals on the outer periphery of the outer ring body, a plurality of second grooves corresponding to the first grooves are also arranged at the outer end of the outer ring body, and the first grooves and the second grooves are connected;

[0005] It also includes a clamping ring, the outer circumference of which is connected to a plurality of second protruding teeth via connecting ribs, the end of each of the second protruding teeth is provided with a ceramic layer, the clamping ring is inserted into the outer circumference of the outer ring body, each of the connecting ribs is inserted into the corresponding second slot, and each of the second protruding teeth is inserted into the first slot;

[0006] The first convex teeth and the second convex teeth constitute the encrypted teeth of the pulley;

[0007] The front cover is fixed to the outer ends of the outer ring body and the inner ring body to limit the clamping ring;

[0008] The outer peripheries of the main body and the front cover are rotatably connected with a retaining ring respectively.

[0009] Specifically, the main body, the outer ring body and the inner ring body are an integrally formed structure.

[0010] Specifically, the outer periphery of the clamping ring abuts against the inner periphery of the outer ring body.

[0011] Specifically, the shape of the portion of each of the second protruding teeth protruding from the first slot is the same as the shape of the first protruding teeth.

[0012] Specifically, an axial hole is formed on the inner periphery of the inner ring body.

[0013] Preferably, the depth of the first groove is one fifth of the wall thickness of the outer ring body.

[0014] Furthermore, the outer peripheries of the main body and the front cover are respectively provided with arc grooves, and the inner peripheries of the two retaining rings are respectively provided with convex rings corresponding to the arc grooves, the cross-section of the convex rings is spherical, and the convex rings are snapped into and rotatably connected in the arc grooves.

[0015] Furthermore, a plurality of hollow connecting columns are arrayed on the main body, each of which is arranged between the outer ring body and the inner ring body, and the front cover is connected to each of the hollow connecting columns via a plurality of long-rod bolts.

[0016] Specifically, the inner end of the front cover abuts against the outer ends of the outer ring body, the inner ring body and the clamping ring respectively.

[0017] The beneficial effects of the utility model are as follows: compared with the pulley in the prior art, the utility model has more densely packed convex teeth, and is less likely to slip when matched with the corresponding transmission belt. Even if some of the first convex teeth are worn out due to long-term use, the transmission belt can still maintain a relatively high transmission efficiency under the premise of densely arranged convex teeth; wherein, a ceramic layer is arranged at the end of each second convex tooth, which is more wear-resistant, and the retaining ring and the second convex teeth are replaceable structures, which can increase the service life of the entire pulley; the second convex tooth is inserted into the second retaining groove, and is itself limited by the second retaining groove, and at the same time, the connecting rib and the retaining ring also play an auxiliary limiting role, which can ensure the reliability of the fixation of the second convex tooth; in addition, the retaining ring rotatably connected to the outer periphery of the main body and the front cover abuts against both sides of the transmission belt. When the transmission belt is slightly deflected, the friction with the transmission belt can be reduced, and the transmission belt is reset easily, which is beneficial to increasing the service life of the transmission belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model after removing the front cover;

[0019] Figure 2 It is a cross-sectional view of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the utility model.

[0021] In the figure: main body 1, front cover 2, outer ring body 3, inner ring body 4, first protruding teeth 5, snap ring 6, connecting ribs 7, second protruding teeth 8, retaining ring 9, shaft hole 10, protruding ring 11, hollow connecting column 12, long rod bolt 13. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0023] Combination Figure 1-3 As shown, a high transmission efficiency anti-slip synchronous pulley comprises a main body 1 and a front cover 2;

[0024] The main body 1 has an outer ring body 3 and an inner ring body 4, the inner periphery of the outer ring body 3 and the outer periphery of the inner ring body 4 are spaced apart, a plurality of first protruding teeth 5 and first slots are arranged at intervals on the outer periphery of the outer ring body 3, and a plurality of second slots corresponding to the first slots are also arranged at the outer end of the outer ring body 3, and the first slots and the second slots are connected;

[0025] It also includes a clamp ring 6, the outer periphery of which is connected to a plurality of second protruding teeth 8 via a connecting rib 7, and the end of each second protruding tooth 8 is provided with a ceramic layer, the clamp ring 6 is inserted into the inner periphery of the outer ring body 3, each connecting rib 7 is inserted into the corresponding second slot, and each second protruding tooth 8 is inserted into the first slot;

[0026] The first convex teeth 5 and the second convex teeth 8 form encrypted teeth of the pulley;

[0027] The front cover 2 is fixed to the outer ends of the outer ring body 3 and the inner ring body 4 to limit the clamping ring 6;

[0028] The outer peripheries of the main body 1 and the front cover 2 are rotatably connected with a retaining ring 9 respectively.

[0029] Compared with the pulley in the prior art, the above structure has denser convex teeth, and is not prone to slippage when matched with the corresponding transmission belt. Even if some of the first convex teeth 5 are worn out due to long-term use, the transmission belt can still maintain a high transmission efficiency under the premise of densely arranged convex teeth; wherein, a ceramic layer is provided at the end of each second convex tooth 8, which is more wear-resistant, and the retaining ring 6 and the second convex tooth 8 are replaceable structures, which can increase the service life of the entire pulley; the second convex tooth 8 is inserted into the second retaining groove, and is limited by the second retaining groove itself. At the same time, the connecting rib 7 and the retaining ring 6 also play an auxiliary limiting role, which can ensure the reliability of the fixation of the second convex tooth 8; in addition, the retaining ring 9 rotatably connected to the outer periphery of the main body 1 and the front cover 2 abuts against both sides of the transmission belt. When the transmission belt is slightly deflected, the friction with the transmission belt can be reduced, and the transmission belt is reset, which is beneficial to increasing the service life of the transmission belt.

[0030] In another embodiment, the main body 1, the outer ring body 3 and the inner ring body 4 are an integrally formed structure.

[0031] In another embodiment, in combination Figure 1 and Figure 2 As shown, the outer periphery of the clamping ring 6 abuts against the inner periphery of the outer ring body 3 .

[0032] In another embodiment, if Figure 1 As shown, the shape of the portion of each second protruding tooth 8 protruding from the first slot is the same as the shape of the first protruding tooth 5 .

[0033] In another embodiment, in combination Figure 1-3As shown, an axial hole 10 is formed on the inner periphery of the inner ring body 4 .

[0034] In another embodiment, the depth of the first groove is one fifth of the wall thickness of the outer ring body 3 to avoid affecting the overall strength of the outer ring body 3 .

[0035] In another embodiment, if Figure 2 As shown, the outer peripheries of the main body 1 and the front cover 2 have arc grooves respectively, and the inner peripheries of the two retaining rings 9 have convex rings 11 corresponding to the arc grooves respectively, and the cross-section of the convex rings 11 is spherical, and the convex rings 11 are snapped into and rotatably connected in the arc grooves.

[0036] In another embodiment, in combination Figure 1 and Figure 2 As shown, a plurality of hollow connecting columns 12 are arranged in an array on the main body 1 , and each of the hollow connecting columns 12 is arranged between the outer ring body 3 and the inner ring body 4 . The front cover 2 is connected to each of the hollow connecting columns 12 via a plurality of long rod bolts 13 .

[0037] In another embodiment, if Figure 2 As shown, the inner end of the front cover 2 abuts against the outer ends of the outer ring body 3, the inner ring body 4 and the snap ring 6 respectively.

[0038] In another embodiment, the second protruding tooth 8 and the first slot are matched in a dovetail groove manner to ensure the fixing reliability of the second protruding tooth 8 .

Claims

1. A high transmission efficiency anti-slip synchronous pulley, comprising a main body (1) and a front cover (2), Its characteristics are: The main body (1) is provided with an outer ring body (3) and an inner ring body (4), the inner periphery of the outer ring body (3) and the outer periphery of the inner ring body (4) are spaced apart, a plurality of first protruding teeth (5) and first clamping grooves are arranged at intervals on the outer periphery of the outer ring body (3), and a plurality of second clamping grooves corresponding to the first clamping grooves are also arranged at the outer end of the outer ring body (3), and the first clamping grooves and the second clamping grooves are connected; It also comprises a clamping ring (6), the outer periphery of which is connected to a plurality of second protruding teeth (8) via connecting ribs (7), the end of each second protruding tooth (8) being provided with a ceramic layer, the clamping ring (6) being inserted into the inner periphery of the outer ring body (3), each connecting rib (7) being inserted into a corresponding second slot, and each second protruding tooth (8) being inserted into a first slot; The first protruding teeth (5) and the second protruding teeth (8) form encrypted teeth of the pulley; The front cover (2) is fixed to the outer ends of the outer ring body (3) and the inner ring body (4) to limit the position of the clamping ring (6); The outer peripheries of the main body (1) and the front cover (2) are also rotatably connected to a retaining ring (9).

2. A high transmission efficiency anti-slip synchronous pulley as claimed in claim 1, Its characteristics are: The main body (1), the outer ring body (3) and the inner ring body (4) are an integrally formed structure.

3. A high transmission efficiency anti-slip synchronous pulley as claimed in claim 2, Its characteristics are: The outer periphery of the clamping ring (6) abuts against the inner periphery of the outer ring body (3).

4. A high transmission efficiency anti-slip synchronous pulley as claimed in claim 3, Its characteristics are: The shape of the portion of each second protruding tooth (8) protruding from the first clamping groove is the same as the shape of the first protruding tooth (5).

5. A high transmission efficiency anti-slip synchronous pulley as claimed in claim 4, Its characteristics are: An axial hole (10) is formed on the inner periphery of the inner ring body (4).

6. A high transmission efficiency anti-slip synchronous pulley as claimed in claim 5, Its characteristics are: The depth of the first clamping groove is one fifth of the wall thickness of the outer ring body (3).

7. A high transmission efficiency anti-slip synchronous pulley as claimed in claim 6, Its characteristics are: The outer peripheries of the main body (1) and the front cover (2) are respectively provided with arc-shaped grooves, and the inner peripheries of the two retaining rings (9) are respectively provided with convex rings (11) corresponding to the arc-shaped grooves, and the cross-section of the convex rings (11) is spherical, and the convex rings (11) are snapped into and rotatably connected in the arc-shaped grooves.

8. A high transmission efficiency anti-slip synchronous pulley as claimed in claim 7, Its characteristics are: The main body (1) is also provided with a plurality of hollow connecting columns (12) arranged in an array, each of the hollow connecting columns (12) being arranged between the outer ring body (3) and the inner ring body (4), and the front cover (2) being connected to each of the hollow connecting columns (12) via a plurality of long-rod bolts (13).

9. A high transmission efficiency anti-slip synchronous pulley as claimed in claim 8, Its characteristics are: The inner end of the front cover (2) abuts against the outer ends of the outer ring body (3), the inner ring body (4) and the snap ring (6) respectively.

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