Dovetail groove guide belt pulley and machining device

Abstract

The utility model provides a dovetail groove guide belt pulley and a machining device, belongs to the technical field of belt pulleys, and solves the problems that an existing belt pulley is easy to fall off in the working process, the machining efficiency is low in the machining process and the like. A dovetail groove guide belt pulley comprises a pulley body, a shaft hole is formed in the pulley body, the pulley body comprises a hub, a first annular component and a second annular component, dovetail grooves are formed in the first annular component and the second annular component, and a belt groove is formed in the hub; the machining device comprises a wheel cylinder, a connecting shaft sleeve arranged in the wheel cylinder, a cylinder frame and a fixing ring frame arranged in the cylinder frame, an annular sliding groove is formed in the cylinder frame, the annular sliding groove is in sliding connection with the fixing ring frame, a tensioning fixing assembly is arranged in the fixing ring frame, and a driving assembly for controlling the fixing ring frame to slide and rotate is arranged in the cylinder frame. The tensioning piece has the advantages that the tensioning piece is not prone to falling off, the inner hole of the workpiece is tensioned, and fixation is completed through friction force between the outer wall of the tensioning piece and the hole wall of a part.

Description

Technical Field

[0001] The utility model belongs to the technical field of pulley processing, and relates to a pulley and a processing device, in particular to a dovetail groove guide pulley and a processing device. Background Art

[0002] The wheel installed together with the transmission belt in the belt drive is called a pulley, and the pulley relies on the transmission belt to transmit power. In the specific use process, the pulley includes two, namely the driving wheel and the driven wheel, and the driving wheel and the driven wheel are tightly covered with the transmission belt. When the engine drives the driving wheel to rotate, because there is friction between the contact surface of the transmission belt and the driving wheel, the driving wheel pulls the transmission belt to rotate, and the transmission belt pulls the driven wheel to rotate, thereby realizing the belt drive. And when the pulley is rotating, it will fall off, which will cause the pulley to not operate normally. In this regard, the present application proposes a dovetail groove guide pulley to ensure stability during rotation.

[0003] In addition, during the processing, assembly and maintenance of the dovetail guide pulley, it is necessary to fix the parts circumferentially and axially by fixing tools, and then clamp the fixing tools to meet the processing requirements of the parts.

[0004] In the existing processing of dovetail groove guide pulleys, the outside of the guide pulley is mostly fixed by clamping. Considering that the guide pulley is easily covered when it is clamped and fixed, when it is necessary to drill or mill the pulley surface, the guide pulley needs to be adjusted or directly disassembled, which affects the processing efficiency. Utility Model Content

[0005] The purpose of the utility model is to address the above-mentioned problems in the existing technology and propose a dovetail groove guide pulley and a processing device. The technical problems to be solved by the utility model are: how to ensure that the pulley is not easy to fall off when rotating, and how to tighten the inner hole of the workpiece during the processing, and use the friction between the outer wall of the tensioner and the hole wall of the component to complete the fixation.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A dovetail groove guide pulley includes a wheel body, characterized in that the wheel body is provided with an axial hole, the wheel body includes a hub, a first annular component and a second annular component, the hub is located between the first annular component and the second annular component, dovetail grooves are provided at the axial holes of the first annular component and the second annular component facing away from the hub surface, and the hub is provided with a plurality of belt grooves, which are distributed at equal intervals.

[0008] The first annular component is provided with a plurality of reinforcement grooves, which are distributed at equal intervals in the circumferential direction.

[0009] The bearing is installed in the wheel body shaft hole, and a limiting ring is arranged in the shaft hole at the wheel hub. The wheel hub, the first annular component, the second annular component and the limiting ring are integrally formed.

[0010] The working principle of the utility model is that a dovetail groove structure is formed at the two ends of the belt pulley, and the structure is used for placing and limiting the bearing, so that the bearing is not easy to fall off.

[0011] A dovetail groove guide pulley processing device comprises a drum frame and a fixed ring frame arranged in the drum frame, wherein an annular slide groove is provided in the drum frame, the annular slide groove is slidably connected with the fixed ring frame, a tensioning and fixing component is arranged in the fixed ring frame, and a driving component for controlling the sliding and rotation of the fixed ring frame is arranged in the drum frame.

[0012] The working principle of the utility model is that the dovetail groove guide pulley can be tightened and fixed by a tightening and fixing component, thereby achieving the fixing ability. Because of the tightening and fixing method, it can be fixed with dovetail groove guide pulleys of different specifications, thereby improving the application scenarios. The driving component drives the fixed ring frame to slide and rotate, so that it can drive the dovetail groove guide pulley to rotate. While achieving the fixing ability, it can also assist other processing devices to process it, thereby improving the overall processing efficiency.

[0013] The tensioning and fixing assembly includes a stabilizing frame fixed in a fixed ring frame, a driving frame fixedly connected to the stabilizing frame, a driving motor fixed in the driving frame, a main bevel gear coaxially fixed to the output end of the driving motor, four cross-arranged slave bevel gears rotatably connected in the driving frame, four driving lead screws are arranged between the driving frame and the fixed ring frame, one end of the four driving lead screws are coaxially fixedly connected to the corresponding slave bevel gears, and the other ends of the four driving lead screws are rotatably connected to the inner wall of the fixed ring frame, and sliding seats are threadedly connected to the four driving lead screws, and tensioning arms are vertically fixed to the four sliding seats.

[0014] By adopting the above structure, the main bevel gear can be driven to rotate by the driving motor. When the main bevel gear rotates, it will drive the four slave bevel gears meshing with it to rotate. When the slave bevel gear rotates, it will drive the four driving screws to rotate. When the driving screws rotate, they will drive the sliding seat to move, thereby further realizing the tensioning action of the tensioning arm, thereby completing the fixing ability of the dovetail groove guide pulley.

[0015] The stabilizing frame is provided with four guide slots, which are slidably connected to the sliding seat.

[0016] By adopting the above structure, the sliding stability of the sliding seat can be improved through the guide slide groove, so that the tightening process is normal and correct.

[0017] The driving assembly comprises a driving gear ring fixedly connected to the fixed ring frame, and a servo motor fixed in the cylinder frame. The output end of the servo motor is coaxially fixedly connected with a driving gear, and the driving gear is meshed with the driving gear ring.

[0018] With the above structure, the servo motor can be used to drive the driving gear to rotate, and the driving gear can then rotate by meshing with the driving gear ring. After the driving gear ring rotates, it can further drive the fixed ring frame to rotate, thereby driving the dovetail groove guide pulley to rotate. While achieving the fixing ability, it can also assist other processing devices to process it, thereby improving the overall processing efficiency.

[0019] Compared with the prior art, the dovetail groove guide pulley and processing device have the following advantages:

[0020] 1. By forming a dovetail groove structure at both ends of the wheel shaft hole, this structure is used to place and limit the bearing, so that it is not easy to fall off.

[0021] 2. The dovetail groove guide pulley is tightened and fixed by means of a tightening and fixing component, thereby achieving the fixing capability. At the same time, due to the tightening and fixing method, it can be fixed with dovetail groove guide pulleys of different specifications, thereby improving the application scenarios.

[0022] 3. The fixed ring frame is driven to slide and rotate through the driving component, so that it can drive the dovetail groove guide pulley to rotate. While achieving the fixing ability, it can also assist other processing devices to process it and improve the overall processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of the structure of a dovetail groove guide pulley.

[0024] Figure 2 It is a cross-sectional schematic diagram of the assembly structure of a dovetail groove guide pulley.

[0025] Figure 3 It is the rear view of the structure of the dovetail guide pulley.

[0026] Figure 4 It is a structural schematic diagram of the tensioning and fixing component.

[0027] Figure 5 It is a structural diagram of the drive component.

[0028] In the figure, 1, wheel body; 1a, wheel hub; 1b, first annular member; 1c, second annular member; 2, limiting ring; 3, belt groove; 4, reinforcement groove; 5, dovetail groove; 6, servo motor; 7, driving gear; 8, cylinder frame; 9, fixed ring frame; 10, annular slide groove; 11, stabilizing frame; 12, driving frame; 13, driving motor; 14, main bevel gear; 15, slave bevel gear; 16, driving screw; 17, sliding seat; 18, tensioning arm; 19, guide slide groove; 20, driving gear ring. DETAILED DESCRIPTION

[0029] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0030] like Figure 1-3 As shown, a dovetail groove guide pulley includes a wheel body 1, which is provided with an axial hole. The wheel body 1 includes a hub 1a, a first annular component 1b and a second annular component 1c. The hub 1a is located between the first annular component 1b and the second annular component 1c. Dovetail grooves are provided at the axial holes of the first annular component (1b) and the second annular component 1c facing away from the hub surface. Four belt grooves are provided on the hub, and the belt grooves are evenly spaced.

[0031] The first annular member (1b) is provided with 8 reinforcement grooves 4, which are distributed at equal intervals in the circumferential direction. The shaft hole of the wheel body 1 is provided with a bearing, and a limit ring 2 is provided in the shaft hole at the wheel hub 1a. The wheel hub 1a, the first annular member 1b and the second annular member 1c are integrally formed.

[0032] like Figure 4 , 5 As shown, a dovetail groove guide pulley processing device includes a drum frame 8, a fixed ring frame 9 arranged in the drum frame 8, an annular slide groove 10 is opened in the drum frame 8, the annular slide groove 10 is slidably connected with the fixed ring frame 9, a tensioning and fixing component is arranged in the fixed ring frame 9, and a driving component for controlling the sliding and rotation of the fixed ring frame 9 is arranged in the drum frame 8.

[0033] The dovetail groove guide pulley can be tightened and fixed by a tightening and fixing component to achieve the fixing ability. Because of the tightening and fixing method, it can be fixed with dovetail groove guide pulleys of different specifications to improve the application scenarios. The fixed ring frame 9 is driven by the driving component to slide and rotate, so that it can drive the dovetail groove guide pulley to rotate. While achieving the fixing ability, it can also assist other processing devices to process it and improve the overall processing efficiency.

[0034] The tensioning and fixing assembly includes a stabilizing frame 11 fixed in the fixed ring frame 9, a driving frame 12 fixedly connected to the stabilizing frame 11, a driving motor 13 fixed in the driving frame 12, a main bevel gear 14 coaxially fixed to the output end of the driving motor 13, four cross-arranged slave bevel gears 15 rotatably connected in the driving frame 12, four driving screws 16 are arranged between the driving frame 12 and the fixed ring frame 9, one end of the four driving screws 16 are coaxially fixedly connected to the corresponding slave bevel gears 15, and the other ends of the four driving screws 16 are rotatably connected to the inner wall of the fixed ring frame 9, and the four driving screws 16 are all threadedly connected to sliding seats 17, and tensioning arms 18 are vertically fixed on the four sliding seats 17.

[0035] By adopting the above structure, the main bevel gear 14 can be driven to rotate by the driving motor 13. When the main bevel gear 14 rotates, it will drive the four slave bevel gears 15 meshing with it to rotate. When the slave bevel gear 15 rotates, it will drive the four driving screws 16 to rotate. When the driving screws 16 rotate, they will drive the sliding seat 17 to move, thereby further realizing the tensioning action of the tensioning arm 18, thereby completing the fixing ability of the dovetail groove guide pulley.

[0036] Four guide slots 19 are formed on the stabilizing frame 11 , and the guide slots 19 are slidably connected to the sliding seat 17 .

[0037] By adopting the above structure, the sliding stability of the sliding seat 17 can be improved through the guide slide groove 19, so that the tensioning process is normal and correct.

[0038] The driving assembly includes a driving ring gear 20 fixedly connected to the fixed ring frame 9 and a servo motor 6 fixed in the cylinder frame 8. The output end of the servo motor 6 is coaxially fixedly connected with a driving gear 7, and the driving gear 7 is meshed with the driving ring gear 20.

[0039] By adopting the above structure, the servo motor 6 can drive the driving gear 7 to rotate, and the driving gear 7 can rotate by meshing with the driving ring gear 20. After the driving ring gear 20 rotates, it will further drive the fixed ring frame 9 to rotate, thereby driving the dovetail groove guide pulley to rotate, realizing the fixing ability and assisting other processing devices to process it, thereby improving the overall processing efficiency.

[0040] The working principle of the utility model is as follows: the main bevel gear 14 is driven to rotate by the driving motor 13. After the main bevel gear 14 rotates, it will drive four slave bevel gears 15 meshing with it to rotate. After the slave bevel gear 15 rotates, it will drive four driving screws 16 to rotate. After the driving screw 16 rotates, it will drive the sliding seat 17 to move, thereby further realizing the tightening action of the tensioning arm 18, thereby completing the fixing ability of the dovetail groove guide pulley. The driving gear 7 is driven to rotate by the servo motor 6, and the driving gear 7 is rotated by meshing with the driving ring gear 20. After the driving ring gear 20 rotates, it will further drive the fixed ring frame 9 to rotate, thereby driving the dovetail groove guide pulley to rotate, realizing the fixing ability while also assisting other processing devices to process it.

[0041] In summary, the dovetail groove guide pulley is tightened and fixed by a tightening and fixing component to achieve the fixing ability. Because of the tightening and fixing method, it can be fixed with dovetail groove guide pulleys of different specifications to improve the application scenario. The driving component drives the fixed ring frame 9 to slide and rotate, so that it can drive the dovetail groove guide pulley to rotate. While achieving the fixing ability, it can also assist other processing devices to process it and improve the overall processing efficiency.

[0042] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A dovetail groove guide pulley, comprising a wheel body (1), characterized in that: The wheel body (1) is provided with an axial hole in which a bearing is installed, and a limiting ring (2) is provided in the axial hole. The wheel body (1) comprises a wheel hub (1a), a first annular component (1b) and a second annular component (1c). The wheel hub (1a) is located between the first annular component (1b) and the second annular component (1c). The wheel hub (1a), the first annular component (1b), the second annular component (1c) and the limiting ring (2) are integrally formed. The first annular component (1b) and the second annular component (1c) are provided with dovetail grooves (5) at the axial holes on the surfaces opposite to the wheel hub. The wheel hub is provided with a plurality of belt grooves which are distributed at equal intervals.

2. A dovetail guide pulley according to claim 1, characterized in that: The first annular component (1b) is provided with a plurality of reinforcement grooves (4), and the reinforcement grooves (4) are distributed at equal intervals in the circumferential direction.

3. A dovetail groove guide pulley processing device, used for processing the dovetail groove guide pulley according to any one of claims 1-2, comprising a drum frame (8), a fixed ring frame (9) arranged in the drum frame (8), characterized in that: An annular slide groove (10) is provided in the cartridge frame (8), the annular slide groove (10) is slidably connected to the fixed ring frame (9), a tensioning and fixing component is provided in the fixed ring frame (9), and a driving component for controlling the sliding and rotation of the fixed ring frame (9) is provided in the cartridge frame (8).

4. The processing device according to claim 3, characterized in that: The tensioning and fixing assembly comprises a stabilizing frame (11) fixed in a fixed ring frame (9), and a driving frame (12) fixedly connected to the stabilizing frame (11); a driving motor (13) is fixed in the driving frame (12); a main bevel gear (14) is coaxially fixed to the output end of the driving motor (13); four cross-arranged slave bevel gears (15) are rotatably connected in the driving frame (12); four driving lead screws (16) are arranged between the driving frame (12) and the fixed ring frame (9); one end of the four driving lead screws (16) is coaxially fixedly connected to the corresponding slave bevel gears (15), and the other end of the four driving lead screws (16) is rotatably connected to the inner wall of the fixed ring frame (9); and sliding seats (17) are threadedly connected to the four driving lead screws (16); and tensioning arms (18) are vertically fixed to the four sliding seats (17).

5. The processing device according to claim 4, characterized in that: The stabilizing frame (11) is provided with four guide slots (19), and the guide slots (19) are slidably connected to the sliding seat (17).

6. The processing device according to claim 3, characterized in that: The driving assembly comprises a driving ring gear (20) fixedly connected to a fixed ring frame (9), and a servo motor (6) fixed in a cylinder frame (8); an output end of the servo motor (6) is coaxially fixedly connected to a driving gear (7), and the driving gear (7) is meshed with the driving ring gear (20).

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