Planet carrier shot blasting device

Abstract

The utility model discloses a shot blasting device for a planet carrier. The shot blasting device comprises a shot blasting chamber, a shot blasting device and a conveying mechanism, chamber doors are arranged on the two sides of the shot blasting chamber, and the shot blasting device is arranged in the shot blasting chamber; the conveying mechanism comprises guide rails, an upper fixing assembly and a lower fixing assembly; the guide rails are arranged at the top and the bottom of the shot blasting chamber in two sections; the upper fixing assembly comprises a top seat, a telescopic rod and clamping jaws, the top seat is movably arranged on the guide rail at the top, one end of the telescopic rod is connected with the top seat, and the other end of the telescopic rod is connected with the multiple rotatable clamping jaws; the lower fixing assembly comprises a base and an expansion rod, the base is movably arranged on the guide rail at the bottom, one end of the expansion rod is rotatably arranged on the base, and the other end of the expansion rod is provided with a plurality of tight supporting pieces in the circumferential direction. By means of the planet carrier shot blasting device, machining can be conducted in two sections, the planet carrier is fixed from the top, the bottom, the exterior and the interior in the two-time machining process, the whole surface can be exposed in the two-time machining process by replacing fixed parts, and therefore the machining coverage range is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of planetary carrier shot peening, and particularly relates to a planetary carrier shot peening device. Background Art

[0002] After the planetary carrier is cast, the surface needs to be shot peened. The surface of the planetary carrier is continuously impacted by high-speed projectiles, forcing the surface and surface layer of the material to undergo cyclic deformation, thereby improving the strength and fatigue strength of the component, and having the advantages of fast speed and high efficiency.

[0003] In the prior art, due to the large volume of the planetary carrier, a roller or turntable shot peening machine cannot be used. Usually, a hook-type shot peening machine is used for processing. The planetary carrier is hung on a hook and enters the shot peening chamber. The coverage of the projectiles is improved by moving and horizontally rotating. However, since it cannot be turned over up and down and the suspension is unstable, this method still cannot comprehensively cover the entire surface of the planetary carrier. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a planetary carrier shot peening device, which can improve the coverage effect of shot peening on the planetary carrier.

[0005] To achieve the above object, the utility model is realized by the following technical solutions: A planetary carrier shot peening device includes a shot peening chamber, a shot peening machine and a conveying mechanism;

[0006] Doors are arranged on both sides of the shot peening chamber, and the shot peening machine is arranged inside the shot peening chamber;

[0007] The conveying mechanism includes guide rails, an upper fixing component and a lower fixing component. The guide rails are arranged in two sections, respectively arranged on the top and bottom of the shot peening chamber, and extend out from the doors on both sides;

[0008] The upper fixing component includes a top seat, a telescopic rod and clamping jaws. The top seat is movably arranged on the guide rail at the top. One end of the telescopic rod is connected to the top seat, and the other end is connected with a plurality of rotatable clamping jaws. The plurality of clamping jaws are arranged circumferentially around the telescopic rod;

[0009] The lower fixing component includes a base and an expansion rod. The base is movably arranged on the guide rail at the bottom. One end of the expansion rod is arranged on the base, and the other end faces upwards and is provided with a plurality of tightening pieces that can move radially around the circumference.

[0010] First, fix the planet carrier on the lower fixing component. Through the tightening pieces on the expansion rod, tighten and fix the planet carrier from the middle. Subsequently, the base moves on the guide rail to transport the planet carrier into the shot blasting chamber, and high-speed projectiles are launched by the shot blaster to impact the surface of the planet carrier. After the first round of processing, fix the planet carrier through the upper fixing component. The clamping jaws rotate on the telescopic rod, hook and clamp the planet carrier from the outside. Subsequently, the top seat moves on the guide rail, and after the second round of processing of the planet carrier by the shot blaster, the planet carrier is transported out of the shot blasting chamber.

[0011] The beneficial effects of the above-mentioned planet carrier shot blasting device are as follows: The processing is carried out in two stages. When processing twice, the planet carrier is fixed from the top and bottom, and from the outside and inside respectively. By changing the fixed parts, all surfaces can be exposed during the two processing times to improve the coverage range of processing.

[0012] Further, a sleeve is sleeved on the telescopic rod. One end of the sleeve is slidably sleeved on the telescopic rod, and the inner diameter of the other end is larger than that of the telescopic rod, which can accommodate the telescopic rod and the clamping jaws. The hinge joint between the clamping jaws and the telescopic rod has elasticity.

[0013] By moving the sleeve on the telescopic rod, the opened clamping jaws can be pushed to rotate inward, so as to hook and fix the planet carrier from the outside.

[0014] Further, the top seat is connected to the sleeve through a cylinder.

[0015] The cylinder can push the sleeve to move on the telescopic rod relative to the top seat, so as to close the clamping jaws inward to fix the planet carrier.

[0016] Further, a plurality of limit posts are arranged circumferentially on the expansion rod. The limit posts are arranged along the radial direction of the expansion rod. A limit groove for sliding connection with the limit posts is provided on the side of the tightening piece close to the expansion rod;

[0017] A slidable sleeve two is sleeved on the expansion rod. A cylinder two is also provided on the base. The cylinder two can push the sleeve two to move on the expansion rod. The diameter of one end of the sleeve two away from the cylinder gradually becomes smaller and can contact the tightening piece.

[0018] When using the lower fixing component to fix the planet carrier, insert the expansion rod into the middle of the planet carrier. Push the sleeve two to slide on the expansion rod through the cylinder two. The end of the sleeve two can push the tightening piece to move outward. Under the action of the limit groove and the limit posts, the plurality of tightening pieces move along the radial direction of the expansion rod and open outward until they are tightened on the inner wall of the planet carrier, thus completing the fixation.

[0019] Further, a convex platform is arranged circumferentially on the outer wall of the sleeve two.

[0020] The convex platform can be used to carry the planet carrier to improve the fixing effect on the planet carrier.

[0021] Furthermore, both the top seat and the bottom seat are rotatable two-layer structures, and the two layers are connected to each other by a motor.

[0022] The two rotatable structures can be used for the self-rotation of the upper fixing component and the lower fixing component, driving the planetary carrier to rotate in the horizontal direction during shot blasting, and improving the coverage range. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present invention, the drawings required for the specific embodiments will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

[0024] Figure 1 The front view of the planetary carrier shot blasting device provided by an embodiment of the present invention;

[0025] Figure 2 For Figure 1 The schematic diagram of the lower fixing component of the planetary carrier shot blasting device shown;

[0026] Figure 3 For Figure 1 The end top view of the lower fixing component of the planetary carrier shot blasting device shown;

[0027] Figure 4 For Figure 1 The schematic diagram of the upper fixing component of the planetary carrier shot blasting device shown;

[0028] Reference Signs:

[0029] 10 - Shot blasting chamber, 20 - Shot blaster;

[0030] 30 - Conveyor mechanism, 31 - Guide rail, 32 - Upper fixing component, 321 - Top seat, 322 - Telescopic rod, 323 - Claw, 324 - Sleeve, 325 - Cylinder, 33 - Lower fixing component, 331 - Bottom seat, 332 - Expansion rod, 333 - Tightening piece, 334 - Limit post, 335 - Limit groove, 336 - Second sleeve, 337 - Second cylinder, 338 - Boss, 34 - Motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The embodiments of the technical solutions of the present invention will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention, and thus are only examples and cannot be used to limit the protection scope of the present invention.

[0032] Please refer to Figures 1 to 4, the present utility model provides a planetary carrier shot blasting device, which includes a shot blasting chamber 10, a shot blasting machine 20 and a conveying mechanism 30. The planetary carrier is transported into the shot blasting chamber 10 through the conveying mechanism 30, and the surface of the planetary carrier is treated by the shot blasting machine 20.

[0033] Specifically, chamber doors are provided on both sides of the shot blasting chamber 10. The shot blasting machine 20 is arranged inside the shot blasting chamber 10 and there are two of them. The conveying mechanism 30 includes a guide rail 31, an upper fixing component 32 and a lower fixing component 33. The guide rail 31 is arranged in two sections, which are respectively arranged on the top and bottom of the shot blasting chamber 10 and extend out from the two side chamber doors respectively. The two shot blasting machines 20 are respectively arranged corresponding to the travel of the two sections of the guide rail 31. The upper fixing component 32 includes a top seat 321, a telescopic rod 322 and a clamping jaw 323. The top seat 321 is movably arranged on the upper guide rail 31. The telescopic rod is a telescopic rod structure with a built-in cylinder. One end is connected to the top seat 321 and the other end is connected with a plurality of rotatable clamping jaws 323. The plurality of clamping jaws are arranged circumferentially around the telescopic rod 322 and the end has a bend for easily hooking the planetary carrier. The lower fixing component 33 includes a base 331 and an expansion rod 332. The base 331 is movably arranged on the lower guide rail 31. One end of the expansion rod 332 is arranged on the base 331 and the other end is arranged upward. A plurality of tightening pieces 333 capable of moving radially are arranged circumferentially.

[0034] First, fix the planetary carrier on the lower fixing component 33 outside. Insert the expansion rod 332 into the middle of the planetary carrier. After the plurality of tightening pieces 333 move radially and expand, the planetary carrier is tightened and fixed from the inside. Subsequently, the base 331 moves on the guide rail 31 to transport the planetary carrier into the shot blasting chamber 10. The impeller body of the shot blasting machine 20 rotates rapidly, and high-speed shot is launched by centrifugal force to impact the surface of the planetary carrier. Since the working principle of the shot blasting machine 20 is prior art, no more details will be described here. After the first round of surface treatment is completed, fix the planetary carrier through the upper fixing component 32 again. The clamping jaws 323 rotate on the telescopic rod 322 and hook on the planetary carrier from the outside, so that the planetary carrier can be hooked and clamped. Subsequently, the top seat 321 moves on the guide rail 31, and the second round of surface treatment is carried out on the planetary carrier through the shot blasting machine 20. Finally, the planetary carrier is transported out of the shot blasting chamber 10. By changing the fixed part, the entire surface of the planetary carrier can be exposed during the two shot blasting operations to improve the processing coverage.

[0035] In this embodiment, the guide rail is an electric guide rail, so the top seat 321 and the base 331 can move back and forth uniformly on the guide rail 31.

[0036] Specifically, a sleeve 324 is sleeved on the telescopic rod 322, and the top seat 321 is connected to the sleeve 324 through a cylinder 325. One end of the sleeve 324 is slidably sleeved on the telescopic rod 322, and the inner diameter of the other end is larger than that of the telescopic rod 322 and can accommodate the telescopic rod 322 and the clamping jaw 323. The clamping jaw 323 is rotatably connected to the telescopic rod 322 through a spring hinge. By pushing the sleeve 324 to slide on the telescopic rod 322 through the cylinder 325, the larger end of the sleeve 324 can push the open clamping jaw 323 to rotate inward and close, so as to hook and fix the planet carrier from the outside.

[0037] Specifically, a plurality of limiting posts 334 are arranged circumferentially on the expansion rod 332, and the limiting posts 334 are arranged along the radial direction of the expansion rod 332. A limiting groove 335 slidably connected to the limiting posts 334 is arranged on one side of the tightening piece 333 close to the expansion rod 332, and the tightening piece 333 is only allowed to slide relative to the limiting posts 334. A slidable sleeve two 336 is also sleeved on the expansion rod 332. A cylinder two 337 is arranged on the base 331, and the cylinder two 337 can push the sleeve two 336 to move on the expansion rod 332. The diameter of one end of the sleeve two 336 away from the cylinder 325 gradually becomes smaller, and the outer surface can contact the tightening piece 333.

[0038] When using the lower fixing assembly 33 to fix the planet carrier, the expansion rod 332 is inserted into the middle of the planet carrier. The cylinder two 337 is used to push the sleeve two 336 to slide on the expansion rod 332. The end of the sleeve two 336 pushes the tightening piece 333 to move outward. Under the action of the limiting groove 335 and the limiting posts 334, a plurality of tightening pieces 333 move along the radial direction of the expansion rod 332 and open outward until they are tightened against the inner wall of the planet carrier, thus completing the fixation. In this embodiment, a convex platform 338 is arranged circumferentially on the outer wall of the sleeve two 336, which can be used to carry the planet carrier to improve the fixing effect on the planet carrier.

[0039] Specifically, both the top seat 321 and the base 331 are rotatable two-layer structures. One layer is slidably connected to the guide rail 31, and the other layer is connected to the expansion rod 332 or the telescopic rod 322. The two layers are connected to each other through a motor 34. The two rotatable structures can be used for the self-rotation of the upper fixing assembly 32 and the lower fixing assembly 33, driving the planet carrier to rotate in the horizontal direction during shot peening to ensure that the surface can be fully covered by the shot.

[0040] The working principle of the above planetary carrier shot blasting device is as follows: First, fix the planetary carrier on the lower fixing component 33 externally. Push the sleeve two 336 to move through the cylinder two 337, and push multiple tightening pieces 333 to open outwards, so as to abut against the inner side of the planetary carrier and fix it. The base 331 moves on the guide rail 31 to transport the planetary carrier into the shot blasting chamber 10. The shot blaster 20 fires projectiles moving at high speed to impact the surface of the planetary carrier. Subsequently, fix the planetary carrier through the upper fixing component 32. Push the sleeve 324 to move on the telescopic rod 322 through the cylinder 325, and rotate the originally open jaws 323 inwards to close, hook on the planetary carrier from the outside and clamp it. The lower fixing component 33 releases the planetary carrier, and then the telescopic rod 322 shortens to lift the planetary carrier. The top seat 321 moves on the guide rail 31. After the second-round surface treatment of the planetary carrier by the shot blaster 20, transport the planetary carrier out of the shot blasting chamber 10.

[0041] Using the above planetary carrier shot blasting device, it can be processed in two stages. When processing twice, fix the planetary carrier from the top and bottom, outside and inside respectively. By changing the fixed parts, all surfaces can be exposed during the two processing times to improve the processing coverage.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and the description of the present invention.

Claims

1. A planetary carrier shot peening device, characterized in that: It includes a shot blasting chamber, a shot blasting machine and a conveying mechanism; Doors are provided on both sides of the shot blasting chamber, and the shot blasting machine is arranged inside the shot blasting chamber; The conveying mechanism includes guide rails, an upper fixing component and a lower fixing component. The guide rails are arranged in two sections, respectively arranged at the top and bottom of the shot blasting chamber, and extend out from the two side doors respectively; The upper fixing component includes a top seat, a telescopic rod and clamping jaws. The top seat is movably arranged on the guide rail at the top. One end of the telescopic rod is connected to the top seat, and the other end is connected with a plurality of rotatable clamping jaws. The plurality of clamping jaws are arranged circumferentially around the telescopic rod; The lower fixing component includes a base and an expansion rod. The base is movably arranged on the guide rail at the bottom. One end of the expansion rod is arranged on the base, and the other end faces upward, and a plurality of tightening pieces capable of moving radially are arranged circumferentially around it.

2. The planetary carrier shot blasting device according to claim 1, wherein: A sleeve is sleeved on the telescopic rod. One end of the sleeve is slidably sleeved on the telescopic rod, and the inner diameter of the other end is larger than that of the telescopic rod, and it can accommodate the telescopic rod and the clamping jaws. The hinge joint between the clamping jaws and the telescopic rod has elasticity.

3. The planetary carrier shot peening device according to claim 2, characterized in that: The top seat is connected to the sleeve through a cylinder.

4. The planet carrier shot peening device according to claim 1, wherein: A plurality of limiting columns are arranged circumferentially around the expansion rod. The limiting columns are arranged radially along the expansion rod. A limiting groove slidably connected with the limiting column is provided on one side of the tightening piece close to the expansion rod; A slidable sleeve two is sleeved on the expansion rod. A cylinder two is also provided on the base. The cylinder two can push the sleeve two to move on the expansion rod. The diameter of the end of the sleeve two away from the cylinder gradually becomes smaller and can contact the tightening piece.

5. The planetary carrier shot blasting device according to claim 4, wherein: A convex platform is arranged circumferentially on the outer wall of the sleeve two.

6. The planetary carrier shot blasting device according to any one of claims 1-5, characterized in that: Both the top seat and the base are rotatable two-layer structures, and the two layers are connected to each other by a motor.

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