Automatic rotating tool for shot blasting of inner cavity of turbocharger shell

Abstract

The utility model provides an automatic rotating tool for shot blasting of an inner cavity of a turbocharger shell, relates to the technical field of polishing equipment, and solves the technical problem that automatic inner cavity shot blasting equipment in the prior art is poor in polishing effect on an inner flow channel of a volute. The device comprises a frame body, a driving device, a transmission structure, a shell support, a shot blasting assembly and an adjusting part, the driving device and the transmission structure are installed on the frame body, the driving device is connected with the transmission structure, the shell support is connected with the transmission structure, the transmission structure can push the shell support to rotate, and a turbocharger shell can be placed on the shell support. The adjusting part is connected with the frame body, a spray head section of the shot blasting assembly penetrates through the transmission structure and the shell support and is aligned to a flow channel in the turbocharger shell, the spray head section is connected with the adjusting part, and the adjusting part can adjust the distance between the spray head section and the turbocharger shell.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing equipment, in particular to an automatic rotating tool used for shot blasting the inner cavity of a turbocharger housing. Background Art

[0002] The flow channel of the turbocharger casing is directly related to the engine power. Under the existing technology, the flow channel of the turbocharger casing produced by the coated sand process is prone to problems such as sand sticking and roughness. At present, two methods are usually used to remove problems such as sand sticking and roughness of the flow channel: First, manual inner cavity shot blasting is used, which can shot blast all positions of the volute flow channel, but the work efficiency is low; second, automatic inner cavity shot blasting is used, but the automatic inner cavity shot blasting equipment only continuously shot blasts a fixed position, that is, the nozzle and the volute are fixed, so that the nozzle can only shot blast one position area of ​​the flow channel in the volute, and other positions of the flow channel in the volute are not covered, resulting in poor polishing effect of the flow channel in the volute, thereby affecting the power of the engine. Utility Model Content

[0003] The purpose of this utility model is to provide an automatic rotary tool for shot blasting the interior cavity of a turbocharger casing, thereby resolving the technical problem of existing automatic internal cavity shot blasting equipment, which suffers from poor polishing of the flow passage within the volute. The various technical effects achieved by the preferred technical solution among the various technical solutions provided by this utility model are detailed below.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] The utility model provides an automatic rotating tool for shot blasting the inner cavity of a turbocharger housing, comprising a frame, a driving device, a transmission structure, a housing bracket, a shot blasting assembly and an adjusting member, wherein the driving device and the transmission structure are mounted on the frame and the driving device is connected to the transmission structure, the housing bracket is connected to the transmission structure and the transmission structure can drive the housing bracket to rotate, the turbocharger housing can be placed on the housing bracket, the adjusting member is connected to the frame, a nozzle section of the shot blasting assembly passes through the transmission structure and the housing bracket and is aligned with a flow channel in the turbocharger housing, the nozzle section is connected to the adjusting member and the adjusting member can adjust the distance between the nozzle section and the turbocharger housing.

[0006] Optionally, the transmission structure includes a driving wheel, a driven wheel group and a chain, the driving device and the driving wheel are both located on one side of the frame, the driven wheel group is located above the frame and the lower end face of the inner ring of the driven wheel group is connected to the frame, the upper end face of the outer ring of the driven wheel group is connected to the shell bracket, and the driving wheel and the driven wheel group are meshed and connected through the chain.

[0007] Optionally, the number of the driven wheel groups is at least two, and the number of the driven wheel groups, the housing bracket, the adjusting member and the shot peening assembly is the same.

[0008] Optionally, the driven wheel group includes an outer gear ring and an inner ring, the outer gear ring is sleeved on the outer wall of the inner ring and is rotatably connected to the inner ring, the inner ring is connected to the top plate of the frame, the outer gear ring is connected to the shell bracket, and the outer gear ring is meshed with the chain.

[0009] Optionally, a plurality of first mating teeth are provided on the circumferential side wall of the outer gear ring, and a plurality of first connecting holes are provided on the outer gear ring;

[0010] A plurality of second connection holes are provided on the inner ring.

[0011] Optionally, both the inner ring and the outer ring of the chain are provided with a plurality of second mating teeth.

[0012] Optionally, the housing bracket includes a circular ring plate, a positioning plate and a support plate, the circular ring plate is connected to the transmission structure, the number of the positioning plates is multiple, all of the positioning plates are distributed along the circumferential direction of the inner ring of the circular ring plate and the positioning plate is fixedly connected to the circular ring plate, the support plate is fixed on the circular ring plate, and the positioning plate and the support plate are used to support the turbocharger housing.

[0013] Optionally, the adjusting member includes a T-shaped member, a positioning sleeve, a fixing sleeve, a first bolt and a second bolt, the T-shaped member is connected to the lower end of the top plate of the frame, the end of the fixing sleeve is communicated with the side wall of the positioning sleeve, the T-shaped member is provided with a first through hole and a first threaded hole, the first through hole and the first threaded hole are vertically arranged and communicated, the fixing sleeve passes through the first through hole, the first bolt is threadedly connected to the first threaded hole and the end of the first bolt can abut against the side wall of the fixing sleeve, the positioning sleeve is sleeved on the nozzle section, the second bolt is threadedly connected to the fixing sleeve and the end of the second bolt can abut against the side wall of the nozzle section.

[0014] Optionally, a material discharge box is further included, which is located below the shell bracket and is connected to the lower end of the top plate of the frame.

[0015] The utility model provides an automatic rotating tool for shot blasting the inner cavity of a turbocharger housing. When the turbocharger housing is placed on the housing bracket, the nozzle section of the shot blasting assembly will be aligned with the flow channel in the turbocharger housing. Then the driving device is started, thereby driving the transmission structure to operate, so that the housing bracket rotates, which also drives the quasi-turbocharger housing to rotate, so that all areas of the flow channel in the turbocharger housing are covered by the steel shots sprayed by the nozzle section, achieving a polishing effect in all positions, and solving the technical problem in the prior art that the automatic inner cavity shot blasting equipment has a poor polishing effect on the flow channel in the vortex housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic structural diagram of an automatic rotating tooling for shot blasting the inner cavity of a turbocharger housing provided by an embodiment of the present utility model;

[0018] Figure 2 This is a schematic structural diagram from another angle of an automatic rotating tool for shot blasting the inner cavity of a turbocharger housing provided by an embodiment of the present utility model;

[0019] Figure 3 This is a schematic structural diagram of an automatic rotary tool for shot blasting the inner cavity of a turbocharger housing provided by an embodiment of the present utility model, which lacks a turbocharger housing;

[0020] Figure 4 This is a schematic structural diagram of the connection between a housing support and a turbocharger housing of an automatic rotary tool for shot blasting the inner cavity of a turbocharger housing provided by an embodiment of the present utility model;

[0021] Figure 5 This is a schematic structural diagram of an automatic rotary tool for shot blasting the inner cavity of a turbocharger housing provided by an embodiment of the present utility model, wherein three turbocharger housings are missing;

[0022] Figure 6 This is a structural diagram of the connection between a frame, a nozzle section and an adjusting member of an automatic rotating tool for shot blasting the inner cavity of a turbocharger housing provided by an embodiment of the present utility model;

[0023] Figure 7The utility model is provided in an embodiment of the present invention, which shows a schematic structural diagram of the connection between a nozzle section and an adjusting member of an automatic rotating tool for shot blasting the inner cavity of a turbocharger housing.

[0024] In the figure, 1 is the frame; 11 is the top plate;

[0025] 2. Driving device;

[0026] 3. Transmission structure; 31. Driving wheel; 32. Driven wheel group; 321. Outer gear ring; 322. Inner ring; 33. Chain;

[0027] 4. Shell bracket; 41. Circular ring plate; 42. Positioning plate; 43. Support plate;

[0028] 5. Nozzle section;

[0029] 6. Adjusting member; 61. T-shaped member; 62. Positioning sleeve; 63. Fixing sleeve; 64. First bolt;

[0030] 7. Turbocharger housing;

[0031] 8. Material discharge box. DETAILED DESCRIPTION

[0032] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that, unless otherwise specified, "plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be construed as limiting the present invention. In addition, the terms "first", "second", "third", etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model depending on the specific circumstances.

[0035] The utility model provides an automatic rotating tool for shot blasting the inner cavity of a turbocharger housing, characterized in that it includes a frame 1, a driving device 2, a transmission structure 3, a housing bracket 4, a shot blasting assembly and an adjusting member 6, wherein the driving device 2 and the transmission structure 3 are mounted on the frame 1 and the driving device 2 is connected to the transmission structure 3, the housing bracket 4 is connected to the transmission structure 3 and the transmission structure 3 can push the housing bracket 4 to rotate, the turbocharger housing 7 can be placed on the housing bracket 4, the adjusting member 6 is connected to the frame 1, the nozzle section 5 of the shot blasting assembly passes through the transmission structure 3 and the housing bracket 4 and is aligned with the flow channel in the turbocharger housing 7, the nozzle section 5 is connected to the adjusting member 6 and the adjusting member 6 can adjust the distance between the nozzle section 5 and the turbocharger housing 7. The present invention provides an automatic rotating tool for shot blasting the inner cavity of a turbocharger housing. When the turbocharger housing 7 is placed on the housing bracket 4, the nozzle section 5 of the shot blasting assembly will be aligned with the flow channel in the turbocharger housing 7. Then the driving device 2 is started, thereby driving the transmission structure 3 to operate, so that the housing bracket 4 is rotated, and the quasi-turbocharger housing 7 is also driven to rotate, so that all areas of the flow channel in the turbocharger housing 7 are covered by the steel shots sprayed by the nozzle section 5, achieving a polishing effect in all positions, and solving the technical problem in the prior art that the automatic inner cavity shot blasting equipment has a poor polishing effect on the flow channel in the volute.

[0036] As an optional embodiment, the transmission structure 3 includes a driving wheel 31, a driven wheel group 32 and a chain 33. The driving device 2 and the driving wheel 31 are both located on one side of the frame 1. The output shaft of the driving device 2 is connected to the driving wheel 31. The driven wheel group 32 is located above the frame 1, and the lower end surface of the inner ring of the driven wheel group 32 is connected to the frame 1. The upper end surface of the outer ring of the driven wheel group 32 is connected to the housing bracket 4. The driving wheel 31 and the driven wheel group 32 are meshed and connected by the chain 33. The driving device 2 drives the driving wheel 31 to rotate, thereby driving the chain 33 to move, and then causing the driven wheel group 32 to rotate.

[0037] As an optional embodiment, the number of driven wheel assemblies 32 is at least two, and the number of driven wheel assemblies 32, housing bracket 4, adjustment member 6 and shot peening assembly is the same. Multiple turbocharger housings 7 can be polished simultaneously, improving work efficiency.

[0038] As an optional embodiment, the driven wheel assembly 32 includes an outer gear ring 321 and an inner ring 322. The outer gear ring 321 is sleeved on the outer wall of the inner ring 322 and is rotatably connected to the inner ring 322. The inner ring 322 is connected to the top plate 11 of the frame 1, and the outer gear ring 321 is connected to the housing bracket 4. The outer gear ring 321 is meshed with the chain 33. The movement of the chain 33 drives the outer gear ring 321 to rotate, thereby causing the housing bracket 4 to rotate, while the inner ring 322 is fixed.

[0039] As an optional embodiment, a plurality of first mating teeth are provided on the circumferential side wall of the outer gear ring 321, and the first mating teeth mesh with the second mating teeth. A plurality of first connecting holes are provided on the outer gear ring 321, some of which are connected to the holes on the annular plate 41 by screws, and the remaining first connecting holes are used to discharge steel shots to prevent the steel shots from getting stuck in the driven wheel group 32;

[0040] A plurality of second connection holes are provided on the inner ring 322 , some of which are connected to the top plate 11 by screws, and the remaining second connection holes are used to discharge steel shots to prevent the steel shots from getting stuck in the driven wheel assembly 32 .

[0041] As an optional embodiment, the inner and outer rings of the chain 33 are both provided with a plurality of second mating teeth. Based on the distribution of the plurality of driven wheel groups 32, the second mating teeth on the inner ring of the chain 33 mesh with the first mating teeth on one of the driven wheel groups 32, while the second mating teeth on the outer ring of the chain 33 mesh with the first mating teeth on the remaining driven wheel groups 32. The second mating teeth also mesh with the teeth on the driving wheel 31.

[0042] As an optional embodiment, the housing bracket 4 includes a circular ring plate 41, a positioning plate 42 and a support plate 43. The circular ring plate 41 is connected to the transmission structure 3, that is, the circular ring plate 41 is connected to the outer gear ring 321. There are multiple positioning plates 42. All positioning plates 42 are distributed along the circumferential direction of the inner ring of the circular ring plate 41 and the positioning plate 42 is fixedly connected to the circular ring plate 41. The support plate 43 is fixed on the circular ring plate 41. The positioning plate 42 and the support plate 43 are used to support the turbocharger housing 7. The upper ends of the positioning plate 42 and the support plate 43 are provided with support grooves for supporting the turbocharger housing 7.

[0043] As an optional embodiment, the adjusting member 6 includes a T-shaped member 61, a positioning sleeve 62, a fixing sleeve 63, a first bolt 64 and a second bolt. The T-shaped member 61 is connected to the lower end of the top plate 11 of the frame body 1, and the connection position of the T-shaped member 61 and the top plate 11 can be changed. One end of the T-shaped member 61 passes through the top plate 11, the inner ring 322 and the circular ring plate 41 in sequence. The end of the fixing sleeve 63 is connected to the side wall of the positioning sleeve 62 and the two are vertically arranged. A first through hole and a first threaded hole are provided on the T-shaped member 61. The first through hole and the first threaded hole are vertically arranged and connected. The fixing sleeve 63 passes through the first through hole. The first bolt 64 is threadedly connected to the first threaded hole and the end of the first bolt 64 can abut against the side wall of the fixing sleeve 63. By changing the fixing sleeve 63 and the first through hole The contact position of the nozzle section 5 can be changed, thereby changing the distance between the positioning sleeve 62 and the T-shaped piece 61, and thus changing the distance between the nozzle section 5 and the T-shaped piece 61. By adjusting the first bolt 64, the connection state between the fixing sleeve 63 and the first through hole can be limited, that is, fixed and movable. The positioning sleeve 62 is sleeved on the nozzle section 5, and the second bolt is threadedly connected to the fixing sleeve 63 and the end of the second bolt can abut against the side wall of the nozzle section 5. By adjusting the second bolt, the connection state between the positioning sleeve 62 and the nozzle section 5 can be changed. When the second bolt is loosened, the nozzle section 5 can move relative to the positioning sleeve 62, and thus the distance between the nozzle section 5 and the turbocharger housing 7 can be changed. When the second bolt is tightened, the nozzle section 5 and the positioning sleeve 62 are fixed.

[0044] As an optional embodiment, it also includes a discharge box 8, which is located below the shell bracket 4 and is connected to the lower end of the top plate 11 of the frame 1. The discharge box 8 is used to hold steel shots. The steel shots in the discharge box 8 can be sprayed into the flow channel in the turbocharger shell 7 through the shot blasting assembly, and the steel shots falling from the turbocharger shell 7 can also be caught.

[0045] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An automatic rotating tool for shot blasting the inner cavity of a turbocharger housing, characterized in that: It comprises a frame (1), a driving device (2), a transmission structure (3), a housing bracket (4), a shot peening assembly and an adjusting member (6), wherein: The driving device (2) and the transmission structure (3) are mounted on the frame (1) and the driving device (2) is connected to the transmission structure (3), the housing bracket (4) is connected to the transmission structure (3) and the transmission structure (3) can drive the housing bracket (4) to rotate, the turbocharger housing (7) can be placed on the housing bracket (4), the adjusting member (6) is connected to the frame (1), the nozzle section (5) of the shot peening assembly passes through the transmission structure (3) and the housing bracket (4) and is aligned with the flow channel in the turbocharger housing (7), the nozzle section (5) is connected to the adjusting member (6) and the adjusting member (6) can adjust the distance between the nozzle section (5) and the turbocharger housing (7).

2. The automatic rotating tool for shot blasting the inner cavity of a turbocharger housing according to claim 1, characterized in that: The transmission structure (3) includes a driving wheel (31), a driven wheel group (32) and a chain (33), the driving device (2) and the driving wheel (31) are both located on one side of the frame (1), the driven wheel group (32) is located above the frame (1), and the lower end face of the inner ring of the driven wheel group (32) is connected to the frame (1), the upper end face of the outer ring of the driven wheel group (32) is connected to the shell bracket (4), and the driving wheel (31) and the driven wheel group (32) are meshed and connected through the chain (33).

3. The automatic rotating tool for shot blasting the inner cavity of a turbocharger housing according to claim 2, characterized in that: The number of the driven wheel groups (32) is at least two, and the number of the driven wheel groups (32), the housing bracket (4), the adjusting member (6), and the shot blasting assembly is consistent.

4. The automatic rotating tool for shot blasting the inner cavity of a turbocharger housing according to claim 2, characterized in that: The driven wheel assembly (32) includes an outer gear ring (321) and an inner ring (322), wherein the outer gear ring (321) is sleeved on the outer wall of the inner ring (322) and the outer gear ring (321) is rotatably connected to the inner ring (322), the inner ring (322) is connected to the top plate (11) of the frame (1), the outer gear ring (321) is connected to the shell bracket (4), and the outer gear ring (321) is meshedly connected to the chain (33).

5. The automatic rotating tool for shot blasting the inner cavity of a turbocharger housing according to claim 4, characterized in that: A plurality of first matching teeth are provided on the circumferential side wall of the outer gear ring (321), and a plurality of first connecting holes are provided on the outer gear ring (321); A plurality of second connection holes are provided on the inner ring (322).

6. The automatic rotating tool for shot blasting the inner cavity of a turbocharger housing according to claim 2, characterized in that: The inner ring and the outer ring of the chain (33) are both provided with a plurality of second matching teeth.

7. The automatic rotating tool for shot blasting the inner cavity of a turbocharger housing according to claim 1, characterized in that: The housing bracket (4) includes a circular ring plate (41), a positioning plate (42) and a support plate (43). The circular ring plate (41) is connected to the transmission structure (3). There are multiple positioning plates (42). All the positioning plates (42) are distributed along the circumferential direction of the inner ring of the circular ring plate (41). The positioning plates (42) are fixedly connected to the circular ring plate (41). The support plate (43) is fixed on the circular ring plate (41). The positioning plates (42) and the support plates (43) are used to support the turbocharger housing (7).

8. The automatic rotating tool for shot blasting the inner cavity of a turbocharger housing according to claim 1, characterized in that: The adjusting member (6) includes a T-shaped member (61), a positioning sleeve (62), a fixing sleeve (63), a first bolt (64) and a second bolt, wherein the T-shaped member (61) is connected to the lower end of the top plate (11) of the frame (1), and the end of the fixing sleeve (63) is connected to the side wall of the positioning sleeve (62). A first through hole and a first threaded hole are provided on the T-shaped member (61), and the first through hole and the first threaded hole are vertically arranged and connected, and the fixing sleeve (63) passes through the first through hole, and the first bolt (64) is threadedly connected to the first threaded hole and the end of the first bolt (64) can abut against the side wall of the fixing sleeve (63), and the positioning sleeve (62) is sleeved on the nozzle section (5), and the second bolt is threadedly connected to the fixing sleeve (63) and the end of the second bolt can abut against the side wall of the nozzle section (5).

9. The automatic rotating tool for shot blasting the inner cavity of a turbocharger housing according to claim 1, characterized in that: It also includes a discharge box (8), which is located below the shell support (4) and is connected to the lower end of the top plate (11) of the frame (1).

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