Engine belt tensioner

Abstract

The utility model relates to the technical field of tensioners, and provides an engine belt tensioner which comprises a first disc, a connecting disc is fixedly installed on the inner side of the first disc, a second disc is fixedly installed on the outer side of the connecting disc, an installation plate is movably connected to the outer side of the connecting disc in a sleeved mode, and a third disc is movably installed on the outer side of the top end of the installation plate. Protruding blocks are evenly and fixedly installed on the outer surface of the third disc. According to the engine belt tensioner, the third disc is installed on the outer side of the installation plate, then the first disc is installed in an automobile, the belt is placed above the roller, when the belt runs, the roller is driven to rotate, and therefore abrasion is reduced; according to the technical scheme, the roller rotates around the round rod, the contact area of the belt and the engine belt tensioner is reduced, abrasion is reduced, and the problem that in the prior art, abrasion is too large is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tensioners, and in particular to an engine belt tensioner. Background Art

[0002] The tensioner acts on the timing belt or timing chain of the engine, guiding and tightening it, so that it is always in the best tension state. Generally, there are two ways: hydraulic and mechanical, both of which can automatically adjust the tension of the timing belt and timing chain.

[0003] The traditional engine belt tensioner has the following disadvantages: During the use of the traditional engine belt tensioner, the tensioner acts as a belt tightening device, and the tensioner is used to adjust the tightness of the timing belt to ensure the stability and safety of the car. Under the transmission of the timing belt or timing chain, the tensioner needs to continuously adjust the tension to make the transmission system stable and reliable. This long-term automatic adjustment process may cause wear of the internal parts of the tensioner, such as the tensioning arm, wheel body, torsion spring, etc., so it needs to be improved. Utility Model Content

[0004] The utility model provides an engine belt tensioner, which solves the problem of excessive wear in the related technology.

[0005] The technical solution of the utility model is as follows: an engine belt tensioner, comprising a disc one, a connecting disc fixedly mounted on the inner side of the disc one, a disc two fixedly mounted on the outer side of the connecting disc, a mounting plate movably sleeved on the outer side of the connecting disc, a disc three movably mounted on the outer side of the top end of the mounting plate, protrusions evenly and fixedly mounted on the outer surface of the disc three, a circular hole being provided on the surface of the protrusion, a round rod movably mounted inside the circular hole, and a roller located between the protrusions movably sleeved on the outer side of the round rod.

[0006] As a preferred technical solution of the utility model, a short block 2 is fixedly installed on the outer side of the second disc, a movable groove is opened inside the second short block, a connecting rod extending to the top of the second short block is movably installed inside the movable groove, a fixed plate 2 located inside the movable groove is fixedly installed below the connecting rod, a slope block located below the second short block is fixedly installed below the second fixed plate, a fixed plate 1 located above the second short block is fixedly installed above the connecting rod, and a pull ring is fixedly installed above the fixed plate 1.

[0007] As a preferred technical solution of the utility model, screw grooves are provided at both ends of the round rod, nuts are threadedly installed on the outer sides of the screw grooves, and the nuts are located on the outer sides of the protrusions.

[0008] As a preferred technical solution of the utility model, a slot is provided on the outer side of the top of the mounting plate, and card slots are provided on both sides of the bottom of the slot. An insertion shaft is movably installed inside the slot, and the disc three is fixedly connected to the outer side of the insertion shaft.

[0009] As a preferred technical solution of the utility model, clamping blocks are fixedly installed on both sides of the bottom of the insertion shaft, and the clamping blocks are located inside the clamping groove.

[0010] As a preferred technical solution of the utility model, a card slot is elastically installed at the bottom of the slot, and the card slot is located below the insertion shaft.

[0011] As a preferred technical solution of the utility model, arc grooves are provided on the inner sides of the first disk and the second disk, and adjustment blocks located inside the arc grooves are fixedly mounted on both sides of the mounting plate.

[0012] As a preferred technical solution of the utility model, a second telescopic spring is elastically installed on the inner side of the arc-shaped groove, and the second telescopic spring corresponds to the inner side of the adjustment block.

[0013] As a preferred technical solution of the utility model, a short block 1 is fixedly installed on the outer side of the mounting plate, and a circular groove is opened on the inner side of the short block 1, and the circular groove corresponds to the inclined surface block.

[0014] As a preferred technical solution of the utility model, a return spring is elastically installed between the inner side of the movable groove and the inner side of the second fixed plate, and the return spring is movably connected to the outer side of the connecting rod.

[0015] The working principle and beneficial effects of the utility model are:

[0016] In the utility model, the disc three is installed on the outside of the mounting plate, and the disc one is installed inside the car, and the belt is placed above the roller. When the belt is running, the roller is driven to rotate, thereby reducing wear. Compared with the traditional engine belt tensioner, the engine belt tensioner drives the roller to rotate through the belt, so that the roller rotates around the round rod, reducing the contact area between the belt and the engine belt tensioner, thereby reducing wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

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

[0019] Figure 2 This is a schematic diagram of the connection disk of the utility model;

[0020] Figure 3This is a schematic diagram of the installation plate of the utility model;

[0021] Figure 4 for Figure 3 A schematic diagram of the local enlarged structure at point A in the middle;

[0022] Figure 5 This is a schematic diagram of the adjustment block of the utility model;

[0023] Figure 6 This is a schematic diagram of the third disc of the utility model;

[0024] Figure 7 This is a schematic diagram of the explosion structure of the convex block, round rod and roller wheel of the utility model;

[0025] Figure 8 It is a schematic transverse cross-sectional view of the second short block of the utility model.

[0026] In the figure: 1. disk one; 2. connecting disk; 3. disk two; 4. reset spring; 5. mounting plate; 6. slot; 7. clamping slot; 8. telescopic spring one; 9. plug-in shaft; 10. clamping block; 11. disk three; 12. protrusion; 13. round rod; 14. roller; 15. screw groove; 16. nut; 17. round hole; 18. adjustment block; 19. arc groove; 20. telescopic spring two; 21. short block one; 22. round groove; 23. short block two; 24. movable groove; 25. connecting rod; 26. fixed plate one; 27. fixed plate two; 28. inclined block; 29. ​​pull ring. DETAILED DESCRIPTION

[0027] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figures 1 to 8 As shown, the utility model provides an engine belt tensioner, including a disc 1, a connecting disc 2 is fixedly installed on the inner side of the disc 1, a disc 2 3 is fixedly installed on the outer side of the connecting disc 2, a mounting plate 5 is movably sleeved on the outer side of the connecting disc 2, a disc 3 11 is movably installed on the top outer side of the mounting plate 5, a protrusion 12 is evenly fixedly installed on the outer surface of the disc 3 11, a circular hole 17 is opened on the surface of the protrusion 12, a round rod 13 is movably installed inside the circular hole 17, and a roller 14 located between the protrusions 12 is movably sleeved on the outer side of the round rod 13.

[0029] In this embodiment, when the tensioner is needed, first insert the plug shaft 9 into the interior of the slot 6, so that the block 10 squeezes the telescopic spring 8 to deform the telescopic spring 8, and then rotate the plug shaft 9 to drive the block 10 to rotate, and rotate the block 10 to the bottom of the slot 7. After letting go, the telescopic spring 8 releases its elastic potential energy to push the block 10 to the inside of the slot 7, so that the disc 3 11 is installed on the outside of the mounting plate 5, and then the disc 1 is installed in the car, and then the belt is placed above the roller 14. When the belt is running, the roller 14 rotates around the round rod 13, thereby reducing the contact area with the belt, thereby reducing the friction with the belt and reducing wear.

[0030] By installing the disc three 11 on the outside of the mounting plate 5 and then installing the disc one 1 inside the car, the belt is placed above the roller 14. When the belt is running, the roller 14 is driven to rotate, thereby reducing wear. Compared with the traditional engine belt tensioner, this engine belt tensioner drives the roller 14 to rotate through the belt, so that the roller 14 rotates around the round rod 13, reducing the contact area between the belt and the engine belt tensioner, thereby reducing wear.

[0031] like Figure 1 to Figure 8 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that a short block 23 is fixedly installed on the outer side of the disc 23, a movable groove 24 is opened inside the short block 23, a connecting rod 25 extending to the top of the short block 23 is movably installed inside the movable groove 24, a fixed plate 27 located inside the movable groove 24 is fixedly installed below the connecting rod 25, a slope block 28 located below the short block 23 is fixedly installed below the fixed plate 27, a fixed plate 1 26 located above the short block 23 is fixedly installed above the connecting rod 25, and a pull ring 29 is fixedly installed above the fixed plate 1 26.

[0032] In this embodiment, when the engine belt tensioner needs to be disassembled, it is only necessary to push the mounting plate 5 with force, so that the mounting plate 5 drives the adjusting block 18 to squeeze the telescopic spring 20, so that the telescopic spring 20 is deformed, and then the short block 1 21 is brought into contact with the inclined block 28, so that the inclined block 28 is squeezed and moves upward to the inside of the movable groove 24, so that the fixed plate 27 moves upward to squeeze the reset spring 4, so that the reset spring 4 is deformed. When the circular groove 22 is located below the inclined block 28, the reset spring 4 releases its elastic potential energy to push the fixed plate 27 to move downward, and pushes the inclined block 28 to the inside of the circular groove 22, thereby fixing the disc 3 11, and thus the engine belt tensioner is disassembled.

[0033] By pushing the mounting plate 5, the short block 1 21 is pressed against the inclined block 28, so that the inclined block 28 shrinks to the inside of the movable groove 24, thereby fixing the short block 1 21 and fixing the disc 3 11, so that the engine belt tensioner is disassembled. Compared with the traditional engine belt tensioner, this engine belt tensioner is easy to use by pushing the mounting plate 5 to fix the short block 1 21 under the short block 2 23, so that the engine belt tensioner is disassembled.

[0034] like Figure 1 to Figure 8 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that screw grooves 15 are opened at both ends of the round rod 13, and nuts 16 are threadedly installed on the outer sides of the screw grooves 15, and the nuts 16 are located on the outer sides of the protrusions 12.

[0035] In this embodiment, the nut 16 is installed on the outer side of the round rod 13 so that the nut 16 fixes the round rod 13 to prevent it from falling off.

[0036] like Figure 1 to Figure 8 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that a slot 6 is opened on the outer side of the top of the mounting plate 5, and card slots 7 are opened on both sides of the bottom of the slot 6. An insertion shaft 9 is movably installed inside the slot 6, and the disk three 11 is fixedly connected to the outer side of the insertion shaft 9.

[0037] In this embodiment, the insertion shaft 9 is inserted into the interior of the slot 6 so that the clamping block 10 squeezes the telescopic spring 8 to deform the telescopic spring 8, and then the insertion shaft 9 is rotated so that the insertion shaft 9 drives the clamping block 10 to rotate and rotate the clamping block 10 to the bottom of the slot 7.

[0038] like Figure 1 to Figure 8 As shown, based on the same concept as the above-mentioned embodiment 4, this embodiment further proposes that clamping blocks 10 are fixedly installed on both sides of the bottom of the insertion shaft 9, and the clamping blocks 10 are located inside the clamping slot 7.

[0039] In this embodiment, the clamping block 10 is rotated to the bottom of the clamping slot 7 so that the clamping block 10 is installed inside the clamping slot 7 , thereby installing the disk three 11 on the outside of the mounting plate 5 .

[0040] like Figure 1 to Figure 8 As shown, based on the same concept as the above-mentioned embodiment 4, this embodiment further proposes that a card slot 7 is elastically installed at the bottom of the slot 6, and the card slot 7 is located below the insertion shaft 9.

[0041] In this embodiment, the block 10 is rotated to the bottom of the slot 7, and after releasing the hand, the telescopic spring 1 8 releases the elastic potential energy to push the block 10 into the slot 7, thereby installing the disk 3 11 on the outside of the mounting plate 5.

[0042] like Figure 1 to Figure 8As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that the inner side of the disk 1 and the inner side of the disk 2 3 are both provided with an arc groove 19, and the two sides of the mounting plate 5 are fixedly installed with adjustment blocks 18 located inside the arc groove 19.

[0043] In this embodiment, it is only necessary to push the mounting plate 5 with force, so that the mounting plate 5 drives the adjusting block 18 to squeeze the telescopic spring 20, so that the telescopic spring 20 is deformed.

[0044] like Figure 1 to Figure 8 As shown, based on the same concept as the above-mentioned embodiment 7, this embodiment further proposes that a second telescopic spring 20 is elastically installed on the inner side of the arc groove 19 , and the second telescopic spring 20 corresponds to the inner side of the adjustment block 18 .

[0045] In this embodiment, the mounting plate 5 drives the adjusting block 18 to squeeze the telescopic spring 20 , so that the telescopic spring 20 is deformed, thereby moving the mounting plate 5 .

[0046] like Figure 1 to Figure 8 As shown, based on the same concept as the above-mentioned embodiment 2, this embodiment further proposes that a short block 21 is fixedly installed on the outer side of the mounting plate 5, and a circular groove 22 is opened on the inner side of the short block 21, and the circular groove 22 corresponds to the inclined block 28.

[0047] In this embodiment, the return spring 4 releases elastic potential energy to push the fixing plate 27 downward, pushing the inclined block 28 into the inside of the circular groove 22, thereby fixing the disc 3 11, thereby disassembling the engine belt tensioner.

[0048] like Figure 1 to Figure 8 As shown, based on the same concept as the above-mentioned embodiment 2, this embodiment further proposes that a return spring 4 is elastically installed between the inner side of the movable groove 24 and the inner side of the second fixed plate 27, and the return spring 4 is movably connected to the outer side of the connecting rod 25.

[0049] In this embodiment, the short block 1 21 contacts the inclined block 28, so that the inclined block 28 is squeezed and moves upward to the inside of the movable groove 24, so that the fixed plate 27 moves upward to squeeze the reset spring 4, causing the reset spring 4 to deform. When the circular groove 22 is located below the inclined block 28, the reset spring 4 releases its elastic potential energy to push the fixed plate 27 to move downward, pushing the inclined block 28 to the inside of the circular groove 22.

[0050] The working principle and use process of this utility model:

[0051] When the tensioner is needed, first insert the plug shaft 9 into the slot 6 so that the block 10 squeezes the telescopic spring 8 to deform the telescopic spring 8, then rotate the plug shaft 9 to drive the block 10 to rotate, and rotate the block 10 to the bottom of the slot 7. After letting go, the telescopic spring 8 releases its elastic potential energy to push the block 10 to the inside of the slot 7, so that the disc 3 11 is installed on the outside of the mounting plate 5, and then the disc 1 is installed in the car, and then the belt is placed above the roller 14. When the belt is running, the roller 14 rotates around the round rod 13, thereby reducing the contact area with the belt, thereby reducing the friction with the belt and reducing wear.

[0052] When the engine belt tensioner needs to be disassembled, it is only necessary to push the mounting plate 5 with force, so that the mounting plate 5 drives the adjusting block 18 to squeeze the telescopic spring 20, so that the telescopic spring 20 is deformed, and then the short block 1 21 is in contact with the inclined block 28, so that the inclined block 28 is squeezed and moves upward to the inside of the movable groove 24, so that the fixing plate 27 moves upward to squeeze the reset spring 4, so that the reset spring 4 is deformed. When the circular groove 22 is located below the inclined block 28, the reset spring 4 releases its elastic potential energy to push the fixing plate 27 to move downward, and pushes the inclined block 28 to the inside of the circular groove 22, thereby fixing the disc 3 11, and thus the engine belt tensioner can be disassembled.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0055] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An engine belt tensioner, comprising a disc 1 (1), characterized in that: A connecting disk (2) is fixedly mounted on the inner side of the disk one (1), a disk two (3) is fixedly mounted on the outer side of the connecting disk (2), a mounting plate (5) is movably sleeved on the outer side of the connecting disk (2), a disk three (11) is movably mounted on the outer side of the top end of the mounting plate (5), a protrusion (12) is evenly fixedly mounted on the outer surface of the disk three (11), a circular hole (17) is formed on the surface of the protrusion (12), a round rod (13) is movably mounted inside the circular hole (17), and a roller (14) located between the protrusions (12) is movably sleeved on the outer side of the round rod (13).

2. An engine belt tensioner according to claim 1, characterized in that: A second short block (23) is fixedly mounted on the outer side of the second disc (3); a movable groove (24) is provided inside the second short block (23); a connecting rod (25) extending to the top of the second short block (23) is movably mounted inside the movable groove (24); a second fixing plate (27) located inside the movable groove (24) is fixedly mounted below the connecting rod (25); a sloped block (28) located below the second short block (23) is fixedly mounted below the second fixing plate (27); a first fixing plate (26) located above the second short block (23) is fixedly mounted above the connecting rod (25); a pull ring (29) is fixedly mounted above the first fixing plate (26).

3. The engine belt tensioner according to claim 1, characterized in that: Screw grooves (15) are formed at both ends of the round rod (13), and nuts (16) are threadedly mounted on the outer sides of the screw grooves (15), wherein the nuts (16) are located on the outer sides of the protrusions (12).

4. The engine belt tensioner according to claim 1, characterized in that: A slot (6) is provided on the outer side of the top of the mounting plate (5), and clamping slots (7) are provided on both sides of the bottom of the slot (6). An insertion shaft (9) is movably installed inside the slot (6), and the disc three (11) is fixedly connected to the outer side of the insertion shaft (9).

5. An engine belt tensioner according to claim 4, characterized in that: Clamping blocks (10) are fixedly mounted on both sides of the bottom of the insertion shaft (9), and the clamping blocks (10) are located inside the clamping slot (7).

6. An engine belt tensioner according to claim 4, characterized in that: A clamping slot (7) is elastically mounted on the bottom of the slot (6), and the clamping slot (7) is located below the insertion shaft (9).

7. An engine belt tensioner according to claim 1, characterized in that: The inner sides of the first disk (1) and the second disk (3) are both provided with arc-shaped grooves (19), and adjustment blocks (18) located inside the arc-shaped grooves (19) are fixedly mounted on both sides of the mounting plate (5).

8. An engine belt tensioner according to claim 7, characterized in that: A second telescopic spring (20) is elastically mounted on the inner side of the arc-shaped groove (19), and the second telescopic spring (20) corresponds to the inner side of the adjustment block (18).

9. An engine belt tensioner according to claim 2, characterized in that: A short block (21) is fixedly mounted on the outer side of the mounting plate (5), and a circular groove (22) is provided on the inner side of the short block (21), wherein the circular groove (22) corresponds to the inclined surface block (28).

10. An engine belt tensioner according to claim 2, characterized in that: A return spring (4) is elastically mounted between the inner side of the movable groove (24) and the inner side of the second fixed plate (27), and the return spring (4) is movably connected to the outer side of the connecting rod (25).

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