Idle wheel assembly

Abstract

The utility model relates to the technical field of idle wheels, in particular to an idle wheel assembly which comprises an idle wheel body, a pin shaft and a second limiting mechanism. A matched bearing is arranged on the inner wall of the idle wheel body, a connecting base is installed on the inner wall of the bearing, and a through hole is formed in the middle of the connecting base. The pin shaft penetrates through the through hole, and a first limiting mechanism is arranged below the peripheral face of the pin shaft and abuts against the connecting base. The second limiting mechanism is adjustably arranged above the peripheral face of the pin shaft in the height direction of the pin shaft, and the pin shaft is detachably connected with the connecting base through the first limiting mechanism and the second limiting mechanism. Through the arrangement of the first limiting mechanism and the second limiting mechanism, the pin shaft and the connecting base can be quickly disassembled and assembled, then the pin shaft and the idle wheel body can be quickly disassembled and assembled, the first limiting mechanism and the second limiting mechanism are convenient and quick to disassemble and assemble, abrasion of the connecting position of the pin shaft and the connecting base is reduced, and the service life is prolonged; and the working efficiency of the idle wheel body is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of idler wheels, and particularly relates to an idler wheel assembly. Background Art

[0002] In mechanical equipment, the application of idler wheels is very common. An idler wheel refers to a gear that plays a transmission role between two non-contact transmission gears, meshes with both of these gears simultaneously, and is used to change the rotation direction of the driven gear to make it the same as that of the driving gear. Most idler wheels are installed on the corresponding transmission wheel bracket or inside the box through bearings fixed in holes and idler wheel pins. An idler wheel assembly is a mechanical device, and its main functions are to change the rotation direction of the driven wheel, increase the transmission distance, adjust the pressure angle, etc. through the idler wheel.

[0003] Chinese Patent with the authorization announcement number CN212536591U discloses an idler wheel installation assembly, which includes an idler wheel body and a bearing matching the idler wheel body. One side of the bearing is provided with a hexagonal groove, and the hexagonal groove is matched with a fixing plate. The fixing plate is integrally connected with an expansion piece matching the inner diameter of the bearing hole. The fixing plate is integrally connected with a pin shaft, and the pin shaft is threadedly connected with a locking component. The locking component includes a conical platform, the conical platform is integrally connected with a nut, both the conical platform and the nut are threadedly matched with the pin shaft, the nut is provided with an oil groove, the bottom of the oil groove is connected with an oil passage, and the oil passage is connected with a plurality of oil holes communicating with the inner holes of the conical platform and the nut.

[0004] However, the above-mentioned disclosed solution has the following deficiencies: As the idler wheel body rotates with two groups of meshing transmission gears, the contact area between the expansion piece and the bearing may be worn, which easily affects the normal connection between the pin shaft and the idler wheel body and the working efficiency. Content of the Utility Model

[0005] The purpose of the utility model is to propose an idler wheel assembly for the problems existing in the background art.

[0006] The technical solution of the utility model: An idler wheel assembly includes an idler wheel body, a matching bearing is arranged on its inner wall, a connecting seat is installed on the inner wall of the bearing, and a through hole is opened in the middle of the connecting seat; a pin shaft, which penetrates through the through hole, a first limiting mechanism is arranged below the outer peripheral surface of the pin shaft, and the first limiting mechanism abuts against the connecting seat; and a second limiting mechanism, which is adjustably arranged above the outer peripheral surface of the pin shaft along the height direction of the pin shaft, the second limiting mechanism abuts against the top end of the connecting seat, and the pin shaft is detachably connected to the connecting seat through the first limiting mechanism and the second limiting mechanism.

[0007] Preferably, a plurality of lower slots are evenly opened at the bottom end of the connecting seat, and the lower slots correspond to the first limiting mechanism; a plurality of upper slots are evenly opened at the top end of the connecting seat, and the upper slots correspond to the second limiting mechanism.

[0008] Preferably, the first limiting mechanism includes a base sleeved on the outer peripheral surface of the pin shaft, the base abuts against the bottom end of the connecting seat; and a plurality of lower inserting rods evenly distributed on the base and inserted into the lower inserting slots.

[0009] Preferably, the second limiting mechanism includes a mounting seat slidably sleeved on the outer peripheral surface of the pin shaft along the height direction of the pin shaft; a plurality of rotating rods evenly and rotatably connected to the outer peripheral surface of the mounting seat, and an upper inserting rod is arranged at one end of the rotating rod far away from the rotating end and inserted into the upper inserting slot; a limiting cover slidably sleeved outside the pin shaft, the limiting cover abuts against the rotating rod and the connecting seat; and a nut threadedly connected to the pin shaft, the bottom end of the nut abuts against the limiting cover.

[0010] Preferably, a plurality of mounting openings are evenly formed on the outer peripheral surface of the mounting seat, and a fixed shaft is installed inside the mounting openings. One end of the rotating rod far away from the upper inserting rod is rotatably connected to the fixed shaft.

[0011] Preferably, a plurality of limiting openings are evenly formed on the side wall of the limiting cover, and the limiting openings abut against the rotating rod.

[0012] Compared with the prior art, the above technical solution of the present utility model has the following beneficial technical effects: Through the arrangement of the first limiting mechanism and the second limiting mechanism, the present utility model facilitates the quick disassembly and assembly of the pin shaft and the connecting seat, and further facilitates the quick disassembly and assembly of the pin shaft and the idler wheel body. Moreover, the arrangement of the first limiting mechanism and the second limiting mechanism is convenient and fast for disassembly and assembly, reduces the wear at the connection between the pin shaft and the connecting seat, prolongs the service life, and avoids affecting the working efficiency of the idler wheel body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0014] Figure 2 is a sectional view of the connection mode between the pin shaft and the connecting seat of the present utility model;

[0015] Figure 3 is a schematic diagram of the connection mode between the connecting seat and the idler wheel body of the present utility model;

[0016] Figure 4 is an exploded view of the connection mode between the second limiting mechanism and the pin shaft of the present utility model.

[0017] Reference numerals: 1, idler wheel body; 2, bearing; 3, connecting seat; 301, lower inserting slot; 302, upper inserting slot; 303, through hole; 4, pin shaft; 401, limiting seat; 402, base; 403, lower inserting rod; 5, mounting seat; 501, mounting opening; 502, fixed shaft; 503, rotating rod; 504, upper inserting rod; 505, limiting cover; 506, limiting opening; 507, nut. Detailed implementation mode

[0018] Embodiment 1

[0019] As Figures 1 to 3 shown, a kind of idler wheel assembly proposed by the utility model includes an idler wheel body 1, a pin shaft 4 and a second limiting mechanism; a matching bearing 2 is arranged on the inner wall of the idler wheel body 1, a connecting seat 3 is installed on the inner wall of the bearing 2, and a through hole 303 is opened in the middle of the connecting seat 3; the pin shaft 4 penetrates through the through hole 303, a first limiting mechanism is arranged below the outer peripheral surface of the pin shaft 4, and the first limiting mechanism abuts against the connecting seat 3; the second limiting mechanism is arranged above the outer peripheral surface of the pin shaft 4 in an adjustable manner along the height direction of the pin shaft 4, the second limiting mechanism abuts against the top end of the connecting seat 3, and the pin shaft 4 is detachably connected with the connecting seat 3 through the first limiting mechanism and the second limiting mechanism.

[0020] Furthermore, a plurality of groups of lower slots 301 are uniformly opened at the bottom end of the connecting seat 3, and the lower slots 301 correspond to the first limiting mechanism; a plurality of groups of upper slots 302 are uniformly opened at the top end of the connecting seat 3, and the upper slots 302 correspond to the second limiting mechanism.

[0021] In this embodiment, the pin shaft 4 is passed through the through hole 303 so that the first limiting mechanism abuts against the bottom end of the connecting seat 3, and then the second limiting mechanism is adjusted so that the second limiting mechanism connects the top end of the pin shaft 4 with the connecting seat 3, and the installation of the idler wheel body 1 and the pin shaft 4 can be completed. Only by adjusting the second limiting mechanism to separate it from the connecting seat 3 can the pin shaft 4 be separated from the connecting seat 3, and the disassembly and assembly are convenient and fast, reducing wear and prolonging the service life.

[0022] Embodiment 2

[0023] As Figures 2 to 4As shown in the figure, a kind of idler wheel assembly proposed by the utility model, compared with the first embodiment, the first limiting mechanism includes a base 402 and a lower inserting rod 403; the base 402 is fixedly sleeved on the outer peripheral surface of the pin shaft 4, and the base 402 abuts against the bottom end of the connecting seat 3; multiple groups of lower inserting rods 403 are provided, and the multiple groups of lower inserting rods 403 are evenly distributed on the base 402, and the lower inserting rods 403 are inserted into the lower inserting slots 301; the second limiting mechanism includes a mounting seat 5, a rotating rod 503, a limiting cover 505 and a nut 507; the mounting seat 5 is slidably sleeved on the outer peripheral surface of the pin shaft 4 along the height direction of the pin shaft 4, a limiting chute is provided on the outer peripheral surface of the pin shaft 4, and a limiting slider is provided on the inner wall of the mounting seat 5, and the limiting slider is slidably connected with the limiting chute, which is convenient for restricting the mounting seat 5 so that it can only slide and adjust along the height direction of the pin shaft 4 and cannot rotate relatively, which is convenient for the upper inserting rod 504 to be quickly inserted into the upper inserting slot 302; multiple groups of rotating rods 503 are provided, and the multiple groups of rotating rods 503 are evenly rotatably connected to the outer peripheral surface of the mounting seat 5, and an upper inserting rod 504 is provided at one end of the rotating rod 503 far from the rotating end, and the upper inserting rod 504 is inserted into the upper inserting slot 302; the limiting cover 505 is slidably sleeved outside the pin shaft 4, and the limiting cover 505 abuts against the rotating rod 503 and the connecting seat 3; the nut 507 is threadedly connected to the pin shaft 4, the bottom end of the nut 507 abuts against the limiting cover 505, a limiting seat 401 is detachably installed at the top end of the pin shaft 4, the top end of the nut 507 abuts against the limiting seat 401, and the setting of the limiting seat 401 prevents the nut 507 from falling off the pin shaft 4.

[0024] Further, multiple groups of mounting openings 501 are evenly provided on the outer peripheral surface of the mounting seat 5, a fixed shaft 502 is installed inside the mounting openings 501, and one end of the rotating rod 503 far from the upper inserting rod 504 is rotatably connected to the fixed shaft 502.

[0025] Further, multiple groups of limiting openings 506 are evenly provided on the side wall of the limiting cover 505, and the limiting openings 506 abut against the rotating rod 503 for limiting the rotating rod 503.

[0026] In this embodiment, a plurality of groups of rotating rods 503 are rotated upward and gathered along the mounting base 5. Then, a pin shaft 4 is passed through the through hole 303 so that the base 402 abuts against the bottom end of the connecting seat 3. At the same time, the lower insertion rod 403 is inserted into the corresponding lower insertion slot 301. The rotating rod 503 is rotated downward along the mounting base 5, and at the same time, the mounting base 5 is slid downward along the pin shaft 4 until the upper insertion rods 504 on the plurality of groups of rotating rods 503 are respectively inserted into the corresponding upper insertion slots 302, and at the same time, the rotating rod 503 abuts against the top end of the connecting seat 3. Then, the limiting cover 505 is slid downward along the pin shaft 4 until the bottom end of the limiting cover 505 abuts against the top end of the connecting seat 3, and at the same time, the limiting port 506 on the limiting cover 505 abuts against the corresponding rotating rod 503. The rotating nut 507 is rotated so that it moves downward along the threaded portion on the outer peripheral surface of the pin shaft 4 until the nut 507 tightly presses the limiting cover 505 against the top end of the connecting seat 3. At this time, the limiting port 506 tightly presses the rotating rod 503 against the top end of the connecting seat 3, thereby connecting the pin shaft 4 to the connecting seat 3. Rotating the nut 507 so that it moves upward along the threaded portion on the outer peripheral surface of the pin shaft 4 can release the limiting of the rotating rod 503 by the limiting cover 505, and the pin shaft 4 can be separated from the connecting seat 3 by adjustment, and the disassembly and assembly are convenient and fast.

[0027] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made without departing from the spirit of the present invention within the knowledge scope of those skilled in the art to which the present invention pertains.

Claims

1. An idler wheel assembly, characterized in that: include An idler wheel body (1) has an inner wall provided with a matching bearing (2), a connecting seat (3) is installed on the inner wall of the bearing (2), and a through hole (303) is opened in the middle of the connecting seat (3); A pin shaft (4) is provided through the through hole (303), a first limiting mechanism is provided below the outer peripheral surface of the pin shaft (4), and the first limiting mechanism abuts against the connecting seat (3); and a second limiting mechanism, which is adjustably arranged above the outer peripheral surface of the pin shaft (4) along the height direction of the pin shaft (4), the second limiting mechanism abuts against the top end of the connecting seat (3), and the pin shaft (4) is detachably connected to the connecting seat (3) via the first limiting mechanism and the second limiting mechanism.

2. An idler wheel assembly according to claim 1, characterized in that: The bottom end of the connection seat (3) is evenly provided with a plurality of lower slots (301), and the lower slots (301) correspond to the first limiting mechanism; the top end of the connection seat (3) is evenly provided with a plurality of upper slots (302), and the upper slots (302) correspond to the second limiting mechanism.

3. An idler wheel assembly according to claim 2, characterized in that: The first limiting mechanism comprises a base (402) which is sleeved on the outer peripheral surface of the pin shaft (4), and the base (402) is in abutment with the bottom end of the connecting seat (3); And lower plug rods (403), which are provided in multiple groups, and the multiple groups of lower plug rods (403) are evenly distributed on the base (402), and the lower plug rods (403) are plugged into the lower slots (301).

4. An idler wheel assembly according to claim 2, characterized in that: The second limiting mechanism comprises a mounting seat (5) which is slidably sleeved on the outer peripheral surface of the pin shaft (4) along the height direction of the pin shaft (4); The rotating rods (503) are provided in multiple groups, and the multiple groups of rotating rods (503) are evenly connected to the outer peripheral surface of the mounting seat (5). An upper plug rod (504) is provided on one end of the rotating rod (503) away from the rotating end, and the upper plug rod (504) is plugged into the upper slot (302); A limit cover (505) is slidably sleeved outside the pin shaft (4), and the limit cover (505) is in contact with the rotating rod (503) and the connecting seat (3); and a nut (507) which is threadedly connected to the pin shaft (4), and the bottom end of the nut (507) is in contact with the limiting cover (505).

5. An idler wheel assembly according to claim 4, characterized in that: A plurality of mounting openings (501) are evenly arranged on the outer circumference of the mounting seat (5), a fixed shaft (502) is installed inside the mounting opening (501), and one end of the rotating rod (503) away from the upper insertion rod (504) is rotatably connected to the fixed shaft (502).

6. An idler wheel assembly according to claim 4, characterized in that: A plurality of groups of limiting openings (506) are evenly arranged on the side wall of the limiting cover (505), and the limiting openings (506) are in contact with the rotating rod (503).

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