Shaft body bladeless wind cleaning device

Abstract

The utility model discloses a bladeless wind cleaning device for a shaft body, which comprises a flow increasing device, an annular flow channel used for being connected with a compressed air source is arranged in the flow increasing device, an air outlet flow gathering conical opening used for the shaft body to penetrate through is formed in the flow increasing device, and the air outlet flow gathering conical opening is arranged to be large in rear and small in front. The flow increasing device is provided with an inner ring air spraying opening used for spraying air towards the inner front direction at the rear end of the air outlet flow gathering conical opening, the annular flow channel is arranged on the radial outer side of the inner ring air spraying opening, and the inner ring air spraying opening is communicated with the annular flow channel. The bladeless wind cleaning device for the shaft body is beneficial to improving the cleaning effect on the shaft body and improving the production efficiency.

Description

Technical Field

[0001] The utility model relates to the field of shaft parts processing auxiliary devices, in particular to a shaft body bladeless wind cleaning device. Background Art

[0002] At present, it is necessary to process a crankshaft. When the crankshaft is processed in the previous process or transferred within the factory, debris (such as cutting chips and dust particles, etc.) will adhere to the shaft body of the crankshaft. Before the shaft body is clamped in the subsequent process, it needs to be manually sprayed and cleaned at multiple angles with an air gun, and then put back on the conveyor line. After that, the shaft body is placed into the tooling sleeve of the subsequent process by an automatic robot arm. The tooling sleeve clamps and positions the shaft body. In other words, if the shaft body is not jet-cleaned, the above-mentioned debris will be cushioned between the tooling sleeve and the shaft body, which will affect the clamping stability of the shaft body and the clamping accuracy of the shaft body. However, the above-mentioned cleaning method of the shaft body requires workers to have good operating skills to obtain a uniform and effective jet cleaning effect on the shaft body, and the cleaning time is relatively long, which is not conducive to improving production efficiency. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a shaft body bladeless wind cleaning device, which is beneficial to improving the cleaning effect of the shaft body and improving production efficiency.

[0004] The purpose of this utility model is achieved through the following technical solutions.

[0005] The utility model discloses a bladeless wind cleaning device for an axle body, including an amplifier, a circulation channel for connecting a compressed air source provided in the amplifier, the amplifier forming an air outlet converging cone for the axle to pass through, the air outlet converging cone being larger at the rear and smaller at the front, the amplifier forming an inner ring jet port for ejecting air in an inward and forward direction at the rear end of the air outlet converging cone port, the circulation channel being provided on the radially outer side of the inner ring jet port, the inner ring jet port being connected to the circulation channel.

[0006] Preferably, an air inlet guide cone for the shaft to pass through is formed in the flow enhancer, the air inlet guide cone is larger at the rear and smaller at the front, and the front end of the air inlet guide cone is aligned with the rear end of the air outlet focusing cone.

[0007] Preferably, the flow enhancer includes a front plate and a rear plate, the air outlet converging cone is formed in the front plate, the air inlet guide cone is formed in the rear plate, the rear end portion of the front plate is formed with an annular groove, the annular groove and the front end surface of the rear plate form the annular flow channel, the rear end portion of the front plate is formed with a concave platform, the outer end of the concave platform is connected to the inner end of the annular groove, the inner end of the concave platform is connected to the rear end of the air outlet converging cone, the concave platform and the front end surface of the rear plate form an annular jet gap, the front end inner diameter of the air inlet guide cone is smaller than the rear end inner diameter of the air outlet converging cone, and the inner annular jet is formed between the front end of the air inlet guide cone and the inner wall of the rear end portion of the air outlet converging cone.

[0008] Preferably, a sealing ring is provided between the front disc and the rear disc, and the sealing ring is provided on the outside of the circulation channel.

[0009] Preferably, an air inlet interface extending radially is formed on the outer side wall of the front disc, and an air vent hole extending axially is formed on the rear portion of the front disc, and the air inlet interface is connected to the circulation channel through the air vent hole.

[0010] Preferably, the shaft bladeless wind cleaning device of the present invention further includes a support frame, a front portion of the support frame is formed with an avoidance opening, the avoidance opening is positioned aligned with the air outlet conical opening, and the flow enhancer is mounted on the front side of the support frame by fasteners.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: a circulation channel for connecting a compressed air source is provided in the flow enhancer, the flow enhancer forms an air outlet converging cone for the shaft to pass through, the air outlet converging cone is larger at the rear and smaller at the front, the flow enhancer forms an inner ring jet port for ejecting air inward and forward directions at the rear end of the air outlet converging cone, the circulation channel is provided on the radially outer side of the inner ring jet port, and the inner ring jet port is connected to the circulation channel, so that the bladeless wind cleaning device for the shaft body of the present invention is beneficial to improving the cleaning effect of the shaft body and is beneficial to improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the cross-sectional structure of the shaft bladeless wind cleaning device of the present invention when viewed from above.

[0013] Figure 2 This is a left-side structural schematic diagram of the shaft bladeless wind cleaning device of the present invention.

[0014] Figure 3 This is a schematic cross-sectional view of the flow enhancer of the present invention.

[0015] Figure 4 It is a schematic cross-sectional structural diagram of the front disc of the present invention.

[0016] Explanation of reference numerals: flow enhancer 1; inner ring jet port 101; ring jet slit 1011; air outlet focusing cone 102; air inlet guide cone 103; step 104; front plate 11; ring groove 1101; concave platform 1102; air inlet interface 111; air vent 1111; circulation channel 112; rear plate 12; sealing ring 13; pipe joint 2; support frame 3; avoidance opening 301; shaft body 99. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] The shaft bladeless wind cleaning device of the utility model is as follows Figures 1 to 3 As shown, the flow enhancer 1 includes a flow enhancer 1, which is provided with a circulation channel 112 for connecting a compressed air source, and the flow enhancer 1 is formed with an outlet flow conical port 102 for the shaft body 99 to pass through. The outlet flow conical port 102 is set to be larger at the rear and smaller at the front. In other words, the outlet flow conical port 102 is a conical hole with a larger rear and smaller front. The flow enhancer 1 is formed with an inner ring jet port 101 for jetting inward and forward at the rear end of the outlet flow conical port 102, that is, the inner ring jet port 101 is an annular jet port, and the inner ring jet port 101 jets inward and biased to the front, which can also be understood as follows. Figure 3 As shown, the jet direction of the inner ring jet port 101 is between the radial direction of the outlet conical port 102 and the inner wall of the outlet conical port 102, so that the airflow ejected from the inner ring jet port 101 partially flows forward along the inner wall of the outlet conical port 102. Figure 3 As shown, the annular flow channel 112 is arranged radially outside the inner ring air jet port 101, and the inner ring air jet port 101 is connected to the annular flow channel 112. The annular flow channel 112 and the inner ring air jet port 101 are preferably arranged coaxially.

[0019] The following briefly describes the working principle of the shaft bladeless wind cleaning device of the utility model: Figure 1 and Figure 3 As shown, the annular channel 112 is connected to a compressed air source, so that compressed air is injected into and fills the annular channel 112, and then the compressed air is ejected out at high speed through the inner ring jet port 101, so that a low-pressure area is formed at the inner ring jet port 101 and the inner wall of the outlet conical port 102. The air behind the outlet conical port 102 is attracted by the above-mentioned low-pressure area, thereby driving a large amount of air to flow into the outlet conical port 102, and then the air flow is ejected forward through the front end of the outlet conical port 102, and the shaft body 99 is penetrated from front to back into the outlet conical port 102. The shaft body 99 is subjected to a strong jet effect all around, and in the axial direction of the shaft body 99, since the shaft body 99 gradually enters the outlet conical port 102, the shaft body 99 is subjected to a jet effect everywhere, which can avoid the existence of ineffective cleaning parts on the shaft body 99, thereby facilitating the shaft body 99 to obtain a uniform and effective jet cleaning effect. Figure 1As shown, since the outlet converging opening 102 is larger at the rear and smaller at the front, the airflow passing through the outlet converging opening 102 is guided by the inner wall of the outlet converging opening 102 and converged, thereby causing the airflow to blow obliquely toward the surface of the shaft body 99, thereby increasing the intensity of the airflow scouring. Moreover, during the process of the shaft body 99 penetrating the outlet converging opening 102, the airflow actually passes between the front end of the outlet converging opening 102 and the cylindrical surface of the shaft body 99. Therefore, compared with before the shaft body 99 penetrates, the airflow velocity increases after the shaft body 99 enters the front end of the outlet converging opening 102. Since the airflow ejected forward by the flow enhancer 1 is unidirectional, it prevents debris from being blown back onto the shaft body 99. In the prior art, a person manually sprays the shaft body 99 with a spray gun, then rotates the shaft body 99 at a certain angle and sprays it back and forth again, which makes it easy for debris to be blown back onto the area that has been cleaned by the spray gun. As can be seen from the above, the bladeless wind cleaning device for the shaft body of the present invention is beneficial to improving the cleaning effect of the shaft body; since the bladeless wind cleaning device for the shaft body of the present invention only requires a single backward penetration action to clean the shaft body 99, the operation is simple and quick, which is beneficial to improving production efficiency.

[0020] Furthermore, if Figure 1 and Figure 3 As shown, the flow enhancer 1 is formed with an inlet guide cone 103 for the shaft body 99 to pass through. The inlet guide cone 103 is arranged to be larger at the rear and smaller at the front. The front end of the inlet guide cone 103 is aligned with the rear end of the outlet converging cone 102. Therefore, the air behind the flow enhancer 1 is guided by the inlet guide cone 103 during the process of being drawn into the outlet converging cone 102. This allows a larger area of ​​air behind the flow enhancer 1 to be concentrated toward the outlet converging cone 102, which facilitates the stable and orderly entry of the air behind the flow enhancer 1 into the outlet converging cone 102. The cone angle of the outlet converging cone 102 can be equal to that of the inlet guide cone 103, and the cone angle of the outlet converging cone 102 can be 30° to 45°.

[0021] Furthermore, if Figure 3 and Figure 4As shown, the flow enhancer 1 includes a front disc 11 and a rear disc 12, an air outlet conical port 102 is formed in the front disc 11, an air inlet guide conical port 103 is formed in the rear disc 12, a ring groove 1101 is formed at the rear end of the front disc 11, the ring groove 1101 and the front end surface of the rear disc 12 form a ring flow channel 112, a concave platform 1102 is formed at the rear end of the front disc 11, the (radial) outer end of the concave platform 1102 is connected to the (radial) inner end of the ring groove 1101, the (radial) inner end of the concave platform 1102 is connected to the rear end of the air outlet conical port 102, the concave platform 1102 and the rear disc 12 are connected. The front face is surrounded by an annular air jet gap 1011. In other words, in the direction parallel to the axis of the air outlet converging cone 102, the width of the annular air jet gap 1011 is significantly smaller than the width of the annular flow channel 112. The width of the annular air jet gap 1011 can be set to 0.05 mm to 0.1 mm. Since the width of the annular flow channel 112 is set larger, the compressed air input to the annular flow channel 112 can be easily and evenly distributed throughout the entire circumference. The smaller width of the annular air jet gap 1011 is set to increase the jet velocity of the inner ring air jet port 101, thereby increasing the negative pressure in the above-mentioned low-pressure area. Figure 3 As shown, the front inner diameter of the air inlet guide cone 103 is smaller than the rear inner diameter of the air outlet converging cone 102, so a step position 104 is formed between the front end of the air inlet guide cone 103 and the rear end of the air outlet converging cone 102, and the inner ring jet port 101 is formed between the front end of the air inlet guide cone 103 and the inner wall of the rear end of the air outlet converging cone 102. In other words, the inner ring jet port 101 is connected to the annular flow channel 112 through the annular jet gap 1011. Since the airflow ejected inward from the annular jet gap 1011 is affected by the step position 104, the inner ring jet port 101 is connected to the annular flow channel 112 through the annular jet gap 1011. 04 blocks and avoids the backward flow, and the inner wall of the rear end of the outlet conical port 102 makes way, so that the airflow ejected inward from the inner ring jet port 101 is actually ejected forward, so that an airflow layer with a higher flow rate is formed on the inner wall of the outlet conical port 102, thereby effectively attracting the air behind the outlet conical port 102 into the outlet conical port 102; and because the negative pressure at the inner ring jet port 101 is higher, the air behind the air inlet guide cone 103 is sucked into the air inlet guide cone 103. The front plate 11 and the rear plate 12 can be fixedly connected by screws. Since the flow enhancer 1 is assembled by the front plate 11 and the rear plate 12, the manufacturing process of the inner ring jet port 101, the ring jet seam 1011 and the annular flow channel 112 can be simplified, such as Figure 4 As shown, the ring groove 1101 and the concave platform 1102 structures can be conveniently manufactured by lathe processing, which is conducive to reducing costs.

[0022] Furthermore, if Figure 3As shown, a sealing ring 13 is provided between the front disc 11 and the rear disc 12. The sealing ring 13 is provided on the (radially) outer side of the circulation channel 112. Specifically, a circular groove is formed on the front end surface of the rear disc 12. The sealing ring 13 is provided in the above-mentioned circular groove, thereby preventing the compressed air in the circulation channel 112 from escaping outward from between the front disc 11 and the rear disc 12.

[0023] Furthermore, if Figure 3 As shown, an air inlet port 111 extending radially is formed on the outer wall of the front disc 11. That is, the outer shape of the front disc 11 can be cylindrical, and the air inlet port 111 is formed on the outer cylindrical surface of the front disc 11. Figure 3 and Figure 4 As shown, the rear portion of the front disc 11 is formed with an axially extending vent hole 1111 (i.e., in a direction parallel to the axis of the outlet conical port 102). The vent hole 1111 can be formed by milling, and the air inlet port 111 is connected to the annular flow channel 112 through the vent hole 1111. The air inlet port 111 can be formed with an internal thread, such as Figure 1 and Figure 2 As shown, the air inlet interface 111 can be threadedly installed with a pipe joint 2, and the pipe joint 2 is connected to a compressed air source through an air pipe. The air inlet interface 111 can be symmetrically distributed on the left and right.

[0024] Furthermore, if Figure 1 and Figure 2 As shown, the shaft bladeless cleaning device of the present invention further includes a support frame 3, a front portion of the support frame 3 is formed with a avoidance opening 301, the avoidance opening 301 is positioned in line with the outlet air flow conical opening 102, thereby preventing the shaft 99 from hitting the support frame 3 when passing through the flow enhancer 1, and the inner diameter of the avoidance opening 301 is significantly larger than the rear end inner diameter of the air inlet guide cone 103, the flow enhancer 1 is mounted on the front side of the support frame 3 by fasteners (which can be screws), specifically, the rear end surface of the rear disc 12 is abutted against the front of the support frame 3, as shown in FIG. Figure 1 As shown, the rear end of the shaft body 99 can extend into the support frame 3, and the rear end of the support frame 3 can be fixed on the frame. Therefore, it can be understood that the support frame 3 reserves space for the shaft body 99 to extend into.

[0025] As can be seen from the above, the present invention utilizes a blade-free structure to generate high-speed, high-volume airflow, resulting in a reduced number of parts, a relatively simple structure, low manufacturing costs, and maintenance-free operation. Since the shaft body 99 can be cleaned simply by inserting it from front to back, the production line can be equipped with a relatively simple three-axis manipulator to clamp the front end of the crankshaft to facilitate the insertion and removal of the shaft body 99 into and out of the flow enhancer 1. After cleaning, the three-axis manipulator transfers the shaft body 99 to a tooling sleeve for subsequent processing steps, thus avoiding increased labor costs and facilitating automated production of crankshafts.

Claims

1. A bladeless wind cleaning device for an axle body, characterized by: The invention comprises a flow enhancer (1), wherein a circulation channel (112) for connecting a compressed air source is provided in the flow enhancer (1), the flow enhancer (1) is formed with an air outlet conical opening (102) for the shaft body (99) to pass through, the air outlet conical opening (102) is arranged to be larger at the rear and smaller at the front, the flow enhancer (1) is formed with an inner ring jet opening (101) for ejecting air in an inward and forward direction at the rear end of the air outlet conical opening (102), the circulation channel (112) is arranged on the radially outer side of the inner ring jet opening (101), and the inner ring jet opening (101) is connected to the circulation channel (112).

2. The bladeless wind cleaning device for the shaft according to claim 1, characterized in that: An air inlet guide cone (103) for the shaft body (99) to pass through is formed in the flow enhancer (1), and the air inlet guide cone (103) is arranged to be larger at the rear and smaller at the front, and the front end of the air inlet guide cone (103) is aligned with the rear end of the air outlet focusing cone (102).

3. The bladeless wind cleaning device for the shaft according to claim 2, characterized in that: The flow enhancer (1) includes a front disc (11) and a rear disc (12), the air outlet conical opening (102) is formed in the front disc (11), the air inlet guide conical opening (103) is formed in the rear disc (12), the rear end portion of the front disc (11) is formed with an annular groove (1101), the annular groove (1101) and the front end surface of the rear disc (12) form the annular flow channel (112), the rear end portion of the front disc (11) is formed with a concave platform (1102), the outer end of the concave platform (1102) is connected to the The inner end of the annular groove (1101) and the inner end of the concave platform (1102) are connected to the rear end of the air outlet converging cone (102); the concave platform (1102) and the front end surface of the rear plate (12) form an annular jet gap (1011); the front end inner diameter of the air inlet guide cone (103) is smaller than the rear end inner diameter of the air outlet converging cone (102); and the inner annular jet port (101) is formed between the front end of the air inlet guide cone (103) and the inner wall of the rear end of the air outlet converging cone (102).

4. The bladeless wind cleaning device for the shaft according to claim 3, characterized in that: A sealing ring (13) is provided between the front disc (11) and the rear disc (12), and the sealing ring (13) is provided on the outside of the circulation channel (112).

5. The bladeless wind cleaning device for the shaft according to claim 4, characterized in that: An air inlet interface (111) extending radially is formed on the outer side wall of the front disc (11), and an air vent (1111) extending axially is formed on the rear portion of the front disc (11), wherein the air inlet interface (111) is connected to the circulation channel (112) via the air vent (1111).

6. The bladeless wind cleaning device for shaft body according to any one of claims 1 to 5, characterized in that: It also includes a support frame (3), a front portion of the support frame (3) is formed with a avoidance opening (301), the avoidance opening (301) is aligned with the air outlet conical opening (102), and the flow enhancer (1) is mounted on the front side of the support frame (3) via fasteners.

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