CN116276668A

CN116276668A - Bearing equipment for motorcycle cylinder body surface shot blasting

Info

Publication number: CN116276668A
Application number: CN202310132454.3A
Authority: CN
Inventors: 张小军; 钱忠明; 刘贵东; 江勇; 曾伟
Original assignee: Chongqing Taicang Technology Co ltd
Current assignee: Chongqing Taicang Technology Co ltd
Priority date: 2023-02-20
Filing date: 2023-02-20
Publication date: 2023-06-23

Abstract

The invention relates to the technical field of shot blasting on the surface of a cylinder block, in particular to bearing equipment for shot blasting on the surface of a cylinder block of a motorcycle, which is used for solving the problems of single function and low automation degree of the existing bearing equipment, wherein the top of a base station is movably connected with a lower rotating platen through a bearing; compared with the prior art, the invention can realize the high-automation functions of automatically clamping the motorcycle cylinder bodies with different inner diameters, automatically switching the shot blasting direction and automatically cleaning.

Description

Bearing equipment for motorcycle cylinder body surface shot blasting

Technical Field

The invention relates to the technical field of shot blasting on the surface of a cylinder block, in particular to bearing equipment for shot blasting on the surface of a cylinder block of a motorcycle.

Background

The surface treatment is carried out by shot blasting, the striking force is large, the cleaning effect is obvious, in the existing workpiece surface treatment method, the cleaning effect is optimal, the sand blasting is suitable for cleaning the workpiece surface with higher requirements, but the conventional general sand blasting equipment in China mainly comprises original heavy sand conveying machinery such as a auger, a scraping plate, a bucket elevator and the like.

The existing bearing platform for placing the motorcycle cylinder block has single function, and only has bearing function for shot blasting of the motorcycle cylinder block: the motorcycle cylinder body of the circular cylinder hole of unable different internal force carries out effective centre gripping to lead to the motorcycle cylinder body to appear rocking easily at the in-process of being shot blasting and influence the problem of shot blasting effect, at the shot blasting in-process simultaneously, the surface treatment direction of motorcycle cylinder body generates heat and switches and need artifical manual regulation, wastes time and energy, and degree of automation is low, and then influences cleaning effect and treatment effeciency to the motorcycle cylinder body.

In view of the above technical drawbacks, a solution is now proposed.

Disclosure of Invention

The object of the present invention is to provide a bearing device for the surface peening of a motorcycle cylinder block for solving the problems mentioned in the background art above.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the bearing equipment for shot blasting on the surface of a motorcycle cylinder body comprises a base station, wherein the top of the base station is movably connected with a lower rotating platen through a bearing, the top of the lower rotating platen is provided with a plurality of groups of turntables in an annular array, the turntables are movably connected with the lower rotating platen through the bearing, a first motor for driving the lower rotating platen to rotate is arranged in the base station, the top of the turntables is provided with a bearing table, and the top of the bearing table is provided with a expanding assembly;

the expansion assembly comprises an abutting plate and a telescopic rod, wherein the abutting plate is arranged at the top of a bearing table, two ends of the telescopic rod are fixedly connected with the bottom of the abutting plate and the top of the bearing table respectively, a compression spring I for connecting the abutting plate and the bearing table is sleeved outside the telescopic rod, the side face of the abutting plate is rotationally connected with the abutting rod I, the top of the bearing table is rotationally connected with the abutting rod II through a support, the top of the bearing table is provided with a plurality of groups of arc expansion plates, one side of each arc expansion plate is fixedly provided with a support through spot welding, and one ends of the abutting rod I and the abutting rod II are rotationally connected with the support.

Further, limit chute I has been seted up to the top of plummer in annular array, limit chute I sliding connection has rectangular slide, rectangular slide fixed connection expands the fagging both sides in the arc, the pushing away groove has been seted up at the top of butt board, the top of plummer is provided with the machine frame, and the machine frame bottom has an upper rotating platen through bearing swing joint, the bottom of upper rotating platen has multiunit base through bearing swing joint, and the bottom fixed mounting of base has electric putter I, the motor II that the multiunit is used for driving the base is installed at the top of upper rotating platen, electric putter I's output fixedly connected with screens board.

Further, the draw-in groove has been seted up to the screens board top in annular array, draw-in groove cooperatees with the arc expands the fagging, the bottom fixedly connected with of screens board with support pushing away groove matched with support pushing away the piece, support pushing away the groove and support pushing away the cross-section of pushing away the piece and all be the square.

Further, the top of lower rotation platen is annular array fixedly connected with multiunit indent baffle, the top of lower rotation platen still is provided with the clearance subassembly, the clearance subassembly includes electric putter two and rotating turret, carousel top and plummer bottom are all fixed with the rotating turret through spot welding, and two the adjacent one end of rotating turret rotates to be connected, the bottom symmetry of plummer is fixed with the guide rail, electric putter two fixed mounting is at the top of carousel.

Further, be provided with the slide bar in the guide rail, the equal fixedly connected with cylinder lug in both ends of slide bar, and cylinder lug sliding connection is in the guide rail, the bottom of slide bar is fixed with support second through spot welding, electric putter's output is rotated with support second through support third and is connected.

Further, the top of lower rotation platen and carousel has all seted up down the silo, the top fixed mounting of base station has three housing, one the inside sliding connection of housing has the peening machine case, and two other the inside of housing is all sliding connection has the fan case that has the jet-propelled function, the internally mounted of fan case has the jet-propelled valves, the internally mounted of peening machine case has the external mechanism that has the peening function.

Further, one of the end surfaces of the shot blasting machine case and the fan case is arc-shaped, an electric push rod III is fixedly arranged in the housing, the electric push rod III is connected with the shot blasting machine case and the air injection valve group which are correspondingly arranged, a main shaft is fixed between the lower rotating platen and the upper rotating platen through spot welding, and a material receiving box is arranged at the bottom of the base.

The invention also provides a working method of the bearing equipment for the shot blasting on the surface of the motorcycle cylinder body, which comprises the following steps:

step one: the circular cylinder hole of the motorcycle cylinder block is clamped at the outer side of the arc-shaped expanding supporting plate, the first electric push rod is started, the first electric push rod drives the clamping plate and the pushing block to synchronously move downwards until the pushing block contacts with the pushing groove and continuously pushes downwards, the pushing block drives the first pushing rod and the second pushing rod to deflect in the downward moving process, and the arc-shaped expanding supporting plate horizontally moves in the first limiting sliding groove through the rectangular sliding block under the cooperation of the first pushing rod and the second pushing rod until the arc-shaped expanding supporting plate contacts with the circular cylinder hole of the motorcycle cylinder block and is tightly abutted;

step two: the motor cylinder body to be processed is moved to the position of the shot blasting machine box by the lower rotating platen, the shot blasting machine box is pushed out from the corresponding housing by the electric push rod III until the arc surface of the shot blasting machine box is contacted with the concave partition plate, so that the motor cylinder body to be shot blasted is in a closed environment, the clamping plate drives the bearing table and the motor cylinder body to synchronously rotate under the driving of the motor II, and the shot blasting machine box can completely shot blasting the motor cylinder body in a full range;

step three: after the treatment, the motorcycle cylinder body is driven by the lower rotating platen to move to the position of the jet valve group, the jet valve group comprehensively cleans abrasive materials attached to the surface of the motorcycle cylinder body, after the cleaning is finished, the first electric push rod drives the clamping plate to move upwards, the arc-shaped expanding plate releases the support of the circular cylinder hole of the motorcycle cylinder body under the action of the first telescopic rod and the first compression spring, the motorcycle cylinder body is taken out from the bearing table, the bearing table is driven by the electric push rod to be in an inclined state through structures such as a guide rail, a slide rod and the like, so that the other jet valve group is convenient for cleaning the abrasive materials on the surfaces of the bearing table and the lower rotating platen, and the abrasive materials flow to the collecting box through the blanking groove to be collected intensively.

Compared with the prior art, the invention has the beneficial effects that:

1. when the device is used, the first electric push rod pushes the abutting plate to move through the clamping plate and the abutting block, and the abutting plate drives the arc-shaped expanding plate to horizontally move through the mutual matching of the first abutting rod and the second abutting rod until the arc-shaped expanding plate is contacted with and abutted against the inner wall of the circular cylinder hole of the motorcycle cylinder body, so that the arc-shaped expanding plate can effectively abut against and support the motorcycle cylinder bodies with different inner diameters, the universality of the device is improved, and meanwhile, the problem that the shot blasting is affected due to shaking of the motorcycle cylinder body in the shot blasting process is effectively avoided.

2. When the automatic shot blasting machine is used, the lower rotating platen which automatically rotates and the electric push rod I which can rotate under the action of the motor II are arranged, and the electric push rod I drives the bearing table and the motorcycle cylinder body to synchronously rotate through the matching of the clamping plate, the clamping groove and the arc-shaped expanding plate, so that the shot blasting machine case can clean the side surface of the motorcycle cylinder body in a full range without dead angles, and meanwhile, the two jet valve groups can thoroughly clean the surfaces of the motorcycle cylinder body, the bearing table which is inclined at any angle, the turntable and the abrasive on the surface of the lower rotating platen, and through a series of automatically controlled machines, the bearing equipment has the highly automatic functions of automatically and stably clamping the motorcycle cylinder bodies with different inner diameters, automatically switching the shot blasting directions and automatically cleaning, and the cleaning effect and the cleaning efficiency are effectively improved.

3. When the invention is used, the shot blasting machine case with the shot blasting function is arranged in the housing, one end face of the shot blasting machine case is arc-shaped, so that the shot blasting machine case can be better attached to the concave partition plate under the drive of the electric push rod III, and meanwhile, the clamping plate is arranged at the top of the motorcycle cylinder body, so that the shot blasting space is in an environment with better sealing effect, the problem that shot blasting abrasive is scattered wantonly is effectively avoided, and the motor drives the bearing table and the motorcycle cylinder body to rotate through the cooperation of the base, the electric push rod I, the clamping plate and the arc-shaped expanding plate, so that the shot blasting machine case can perform more sufficient surface treatment on the rotating motorcycle cylinder body.

Drawings

For the convenience of those skilled in the art, the present invention will be further described with reference to the accompanying drawings;

FIG. 1 is a schematic elevational view of the overall structure of the present invention;

FIG. 2 is a front view of a concave baffle plate of the present invention;

FIG. 3 is a top view of a base structure of the present invention;

FIG. 4 is a top view of a stage structure according to the present invention;

FIG. 5 is a top view of a concave separator plate according to the present invention;

fig. 6 is a bottom view of the detent plate structure of the present invention.

Reference numerals: 1. a base station; 2. a lower rotating platen; 3. a turntable; 4. a carrying platform; 5. a spread assembly; 501. an abutting plate; 502. a telescopic rod; 503. compressing a first spring; 504. a first supporting rod; 505. a second supporting rod; 506. an arc-shaped expanding plate; 507. a bracket; 508. a first limiting chute; 509. a rectangular slide block; 510. a pushing groove; 511. an electric push rod I; 512. a clamping plate; 513. a clamping groove; 514. the pushing block; 6. an upper rotating platen; 7. a housing; 8. cleaning the assembly; 801. an electric push rod II; 802. a rotating frame; 803. a guide rail; 804. a slide bar; 805. discharging groove; 806. a jet valve group; 9. a shot blasting machine box; 10. a main shaft; 11. a material receiving box; 12. a concave baffle.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Embodiment one:

as shown in fig. 1 to 6, the existing bearing device for placing the motorcycle cylinder block only plays a bearing role, and when the shot blasting is performed on the surface of the motorcycle cylinder block, the shot blasting direction of the motorcycle cylinder block needs to be manually switched, so that the operation method is time-consuming and labor-consuming, and has low efficiency, and the specific improvement is as follows:

the bearing equipment for shot blasting on the surface of a motorcycle cylinder body comprises a base station 1, wherein the top of the base station 1 is movably connected with a lower rotating platen 2 through a bearing, a plurality of groups of turntables 3 are arranged on the top of the lower rotating platen 2 in an annular array, the turntables 3 are movably connected with the lower rotating platen 2 through the bearing, a main shaft 10 is fixed between the lower rotating platen 2 and an upper rotating platen 6 through spot welding, a motor I for driving the lower rotating platen 2 to rotate is arranged in the base station 1, the motor I drives the lower rotating platen 2 to rotate, and the lower rotating platen 2 drives the upper rotating platen 6 to synchronously rotate through the main shaft 10;

the top of the turntable 3 is provided with a bearing table 4, the top of the bearing table 4 is provided with a expanding assembly 5, the expanding assembly 5 comprises an abutting plate 501 and a telescopic rod 502, the abutting plate 501 is arranged at the top of the bearing table 4, the top of the bearing table 4 is provided with a plurality of groups of arc expanding plates 506, when the motorcycle cylinder block is placed at the top of the bearing table 4, simultaneously, a round cylinder hole of the motorcycle cylinder block is sleeved at the outer side of the arc expanding plates 506, a first electric push rod 511 is started, the first electric push rod 511 drives a clamping plate 512 to move downwards, in the process, a clamping groove 513 formed on the surface of the clamping plate 512 is clamped at the outer side of the arc expanding plates 506, simultaneously, the abutting plate 501 is continuously pushed to move downwards under the driving of the first electric push rod 511 after the abutting block 514 is aligned with the abutting groove 510, two ends of the telescopic rod 502 are fixedly connected with the bottom of the abutting plate 501 and the top of the bearing table 4 respectively, the outer side of the telescopic rod 502 is sleeved with a compression spring I503 which is connected with an abutting plate 501 and a bearing table 4, the side surface of the abutting plate 501 is rotationally connected with an abutting rod I504, the top of the bearing table 4 is rotationally connected with an abutting rod II 505 through a support, one side of an arc-shaped expanding plate 506 is fixedly provided with a bracket 507 through spot welding, one ends of the abutting rod I504 and the abutting rod II 505 are rotationally connected with the bracket 507, the abutting rod I504 and the abutting rod II 505 deflect under the action of the abutting plate 501, the arc-shaped expanding plate 506 is driven by the abutting rod I504 and the abutting rod II 505 and further moves along a limiting chute I508 in the horizontal direction through the cooperation of a rectangular sliding block 509, the arc-shaped expanding plates 506 move outwards along the limiting chute I508 until the arc-shaped expanding plates 506 are contacted with the inner wall of a cylinder block circular cylinder hole and abutted, and further, the cylinder bodies with different circular cylinder hole inner diameters are effectively supported.

Embodiment two:

as shown in fig. 2, 3 and 5, the existing apparatus still adheres a large amount of abrasive to the cylinder surface of the motorcycle cylinder after shot blasting, and simultaneously generates a large amount of abrasive in the process of shot blasting the motorcycle cylinder, in order to clean the abrasive adhering to the surface of the engine cylinder, and simultaneously collect the abrasive in the process of shot blasting in a concentrated manner, in order to solve the above problems, the specific improvement is as follows:

the inside sliding connection of housing 7 has the fan case that has the air jet function, the internally mounted of fan case has air jet valves 806, air jet valves 806 is used for clearing up the motorcycle cylinder body surface, one of them terminal surface of fan case sets up to the arc, the inside fixed mounting of housing 7 has electric putter three, electric putter three is connected with the air jet valves 806 of corresponding setting, the top of lower rotation platen 2 is annular array fixedly connected with multiunit indent baffle 12, indent baffle 12 is used for keeping off the abrasive material and prevents its excessive, the top of lower rotation platen 2 still is provided with clearance subassembly 8, clearance subassembly 8 includes electric putter two 801 and rotating stand 802, rotating stand 802 is fixed with through spot welding to rotating stand 802 top and plummer 4 bottom, and the adjacent one end rotation of two rotating stands 802 is connected, the bottom symmetry of plummer 4 is fixed with guide rail 803, the electric push rod II 801 is fixedly arranged at the top of the turntable 3, a slide bar 804 is arranged in the guide rail 803, both ends of the slide bar 804 are fixedly connected with cylindrical convex blocks, the cylindrical convex blocks are slidably connected in the guide rail 803, the bottom of the slide bar 804 is fixedly provided with a support II through spot welding, the output end of the electric push rod II 801 is rotationally connected with the support II through the support III, the tops of the lower rotating platen 2 and the turntable 3 are respectively provided with a blanking groove 805, the blanking grooves 805 are used for collecting abrasive materials of shot blasting, when the electric push rod II is specifically arranged, the motorcycle cylinder body is driven by the motor I to move to the position of the air injection valve block 806, the electric push rod III pushes the blower box to extend out of the housing 7, one end face of the blower box is arranged into an arc shape, the arc end of the blower box is attached to the concave baffle 12, a closed space is formed, the air injection valve block 806 cleans the motorcycle cylinder body under the action of the blower box, meanwhile, the clamping plate 512 rotates under the drive of the motor II, the clamping plate 512 is matched with the arc-shaped expanding plate 506 through the clamping groove 513 to drive the bearing table 4 and the motorcycle cylinder body to synchronously rotate, and the motorcycle cylinder body is matched with the jet valve block 806 to clean the surface of the motorcycle cylinder body in all directions in the rotating process.

After cleaning, the first electric push rod 511 drives the clamping plate 512 to move upwards until the clamping plate 512 is completely separated from contact with the motorcycle cylinder block, in the process, the abutting plate 501 moves upwards again under the action of the telescopic rod 502 and the first compression spring 503, so that the plurality of arc-shaped expanding plates 506 are mutually closed again under the action of the first abutting rod 504 and the second abutting rod 505, the mutual expansion of the arc-shaped expanding plates 506 promotes the supporting of the inner wall of the circular cylinder hole of the motorcycle cylinder block to be released, then the motorcycle cylinder block is taken out from the bearing table 4, the second electric push rod 801 pulls the sliding rod 804 to slide in the guide rail 803 through the second supporting seat and the third supporting seat, the bearing table 4 is deflected in the matching of the plurality of rotating frames 802, the bearing table 4 is in an inclined state, the other air injection valve 806 can thoroughly clean abrasive materials attached on the surface of the bearing table 4, it should be noted that, two air jet valve groups 806 are disposed at the top of the base 1, and the air jet directions of the two air jet valve groups 806 are different, one air jet valve group 806 is used for cleaning the surface of the motorcycle cylinder block, the other air jet valve group 806 is used for cleaning the surface of the bearing table 4, the turntable 3 and the abrasive on the surface of the lower rotating platen 2, the air jet valve group 806 blows the abrasive on the surfaces of the bearing table 4, the turntable 3 and the lower rotating platen 2 into the lower trough 805, the air jetted by the air jet valve group 806 moves along two sides of the inner wall of the concave partition 12 to the middle part, so that the cleaned abrasive can be collected in a concentrated manner and blown into the lower trough 805, and the abrasive falls into the material receiving box 11 through the lower trough 805 to be collected in a concentrated manner.

Embodiment III:

as shown in fig. 3, three covers 7 are arranged at the top of the base 1, a shot blasting machine case 9 with a shot blasting function is installed in one cover 7, one end face of the shot blasting machine case 9 is arc-shaped, the shot blasting machine case 9 can be better attached to the concave partition plate 12 under the driving of the electric push rod III, meanwhile, a clamping plate 512 is arranged at the top of the motorcycle cylinder body, the shot blasting space is in a better sealed environment, the problem that shot blasting abrasive is scattered randomly is effectively avoided, and the motor II, the electric push rod I511, the clamping plate 512 and the arc-shaped expanding plate 506 are matched to drive the bearing table 4 and the motorcycle cylinder body to rotate, so that the shot blasting machine case 9 can perform more sufficient surface treatment on the rotating motorcycle cylinder body.

The foregoing is merely illustrative of the structures of this invention and various modifications, additions and substitutions for those skilled in the art can be made to the described embodiments without departing from the scope of the invention or from the scope of the invention as defined in the accompanying claims.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.

Claims

1. The bearing equipment for shot blasting on the surface of a motorcycle cylinder body comprises a base station (1), and is characterized in that the top of the base station (1) is movably connected with a lower rotating platen (2) through a bearing, a plurality of groups of turntables (3) are arranged on the top of the lower rotating platen (2) in an annular array, the turntables (3) are movably connected with the lower rotating platen (2) through the bearing, a first motor for driving the lower rotating platen (2) to rotate is arranged in the base station (1), a bearing table (4) is arranged at the top of the turntables (3), and a expanding and supporting component (5) is arranged at the top of the bearing table (4);

expansion support subassembly (5) are including butt board (501) and telescopic link (502), butt board (501) set up the top at plummer (4), the both ends of telescopic link (502) respectively with butt board (501) bottom and plummer (4) top fixed connection, telescopic link (502) outside cover is equipped with compression spring one (503) of being connected with butt board (501) and plummer (4), the side rotation of butt board (501) is connected with butt pole one (504), the top of plummer (4) is connected with butt pole two (505) through support rotation, the top of plummer (4) is provided with multiunit arc and expands fagging (506), one side of arc expands fagging (506) is fixed with support (507) through the spot welding, the one end of butt pole one (504) and butt pole two (505) all rotates with support (507) to be connected.

2. The bearing device for the shot blasting of the surface of the cylinder block of the motorcycle according to claim 1, wherein the top of the bearing table (4) is provided with a first limit chute (508) in an annular array, a second rectangular slide block (509) is connected in the first limit chute (508) in a sliding manner, the rectangular slide block (509) is fixedly connected to two sides of the arc-shaped expanding plate (506), the top of the abutting plate (501) is provided with an abutting groove (510), the top of the base table (1) is provided with a machine frame, the bottom of the machine frame is movably connected with an upper rotating table plate (6) through a bearing, the bottom of the upper rotating table plate (6) is movably connected with a plurality of groups of bases through a bearing, the bottom of each base is fixedly provided with a first electric push rod (511), the top of the upper rotating table plate (6) is provided with a second motor for driving the bases, and the output end of the first electric push rod (511) is fixedly connected with a clamping plate (512).

3. The bearing device for the surface shot blasting of the motorcycle cylinder body according to claim 2, wherein the clamping grooves (513) are formed in the top of the clamping plate (512) in an annular array, the clamping grooves (513) are matched with the arc-shaped expanding plate (506), the bottom of the clamping plate (512) is fixedly connected with the pushing block (514) matched with the pushing groove (510), and the cross sections of the pushing groove (510) and the pushing block (514) are square.

4. The bearing device for shot blasting on the surface of a motorcycle cylinder block according to claim 1, wherein the top of the lower rotating platen (2) is fixedly connected with a plurality of groups of concave partition boards (12) in an annular array, the top of the lower rotating platen (2) is further provided with a cleaning component (8), the cleaning component (8) comprises a second electric push rod (801) and a rotating frame (802), the rotating frame (802) is fixed to the top of the rotating disc (3) and the bottom of the bearing table (4) through spot welding, two adjacent ends of the rotating frame (802) are rotationally connected, guide rails (803) are symmetrically fixed to the bottom of the bearing table (4), and the second electric push rod (801) is fixedly installed at the top of the rotating disc (3).

5. The bearing device for shot blasting on the surface of a motorcycle cylinder block according to claim 4, wherein a sliding rod (804) is arranged in the guide rail (803), cylindrical protruding blocks are fixedly connected to two ends of the sliding rod (804), the cylindrical protruding blocks are slidably connected in the guide rail (803), a second support is fixedly arranged at the bottom of the sliding rod (804) through spot welding, and an output end of the second electric push rod (801) is rotatably connected with the second support through the third support.

6. The bearing device for the surface shot blasting of the motorcycle cylinder block according to claim 1, wherein the lower rotating platen (2) and the top of the turntable (3) are respectively provided with a blanking groove (805), three housings (7) are fixedly arranged at the top of the base (1), a shot blasting machine case (9) is slidingly connected to the inside of one housing (7), fan boxes with a jet function are slidingly connected to the inside of the other two housings (7), jet valve groups (806) are arranged in the fan boxes, and an external mechanism with the jet function is arranged in the inside of the shot blasting machine case (9).

7. The bearing device for the shot blasting of the surface of the cylinder block of the motorcycle according to claim 6, wherein one end face of the shot blasting machine box (9) and one end face of the fan box are arc-shaped, an electric push rod III is fixedly installed in the housing (7), the electric push rod III is connected with the shot blasting machine box (9) and the air injection valve group (806) which are correspondingly arranged, a main shaft (10) is fixed between the lower rotating platen (2) and the upper rotating platen (6) through spot welding, and a material receiving box (11) is installed at the bottom of the base (1).

8. A method of operating a load-bearing apparatus for motorcycle cylinder block surface peening as defined in any one of claims 1 to 7, comprising the steps of:

step one: the circular cylinder hole of the motorcycle cylinder block is clamped at the outer side of the arc-shaped expanding plate (506), the electric push rod I (511) is started, the electric push rod I (511) drives the clamping plate (512) and the pushing block (514) to synchronously move downwards until the pushing block (514) is contacted with the pushing groove (510) and continuously pushes downwards, the pushing block (514) drives the pushing rod I (504) and the pushing rod II (505) to deflect in the downward moving process, and the arc-shaped expanding plate (506) horizontally moves in the limiting chute I (508) through the rectangular sliding block (509) under the cooperation of the pushing rod I (504) and the pushing rod II (505) until the arc-shaped expanding plate (506) is contacted with the circular cylinder hole of the motorcycle cylinder block and is abutted tightly;

step two: the motor cylinder body to be processed is moved to the position of the shot blasting machine box (9) by the lower rotating platen (2), the shot blasting machine box (9) is pushed out from the corresponding shell (7) by the electric push rod III until the arc surface of the shot blasting machine box (9) is contacted with the concave partition board (12), so that the motor cylinder body to be shot blasted is in a closed environment, the clamping plate (512) drives the bearing table (4) and the motor cylinder body to synchronously rotate under the driving of the motor II, and the shot blasting machine box (9) can carry out full-range complete shot blasting on the motor cylinder body;

step three: after the treatment is finished, the motorcycle cylinder body is driven by the lower rotating platen (2) to move to the position of the jet valve group (806), the jet valve group (806) is used for comprehensively cleaning abrasive materials attached to the surface of the motorcycle cylinder body, after the cleaning is finished, the first electric push rod (511) is used for driving the clamping plate (512) to move upwards, the arc-shaped expanding plate (506) is used for removing the support of the circular cylinder hole of the motorcycle cylinder body under the action of the telescopic rod (502) and the first compression spring (503), the motorcycle cylinder body is taken out from the bearing table (4), the second electric push rod (801) is used for driving the bearing table (4) to be in an inclined state through structures such as the guide rail (803) and the slide rod (804), so that the other jet valve group (806) is used for cleaning the abrasive materials on the surfaces of the bearing table (4) and the lower rotating platen (2) and is used for intensively collecting the abrasive materials flowing to the material collecting box (11) through the lower material groove (805).