Camshaft cleaning device

Abstract

The utility model discloses a camshaft cleaning device, relates to the field of cleaning, and solves the problem of how to clean blind holes of camshafts. According to the technical scheme, the cam shaft cleaning device comprises a machine frame, a movable frame which is installed on the machine frame and can do reciprocating motion along a straight line, and at least two idler wheels which are installed on the movable frame, the idler wheels are connected through a rotating shaft, and the idler wheels are clamped between two adjacent cams of a cam shaft. The idler wheel can move in a reciprocating mode in the linear direction along with the movable frame to drive the cam shaft to correspondingly move in the axial direction of the idler wheel, so that the overhanging end of the flushing rod can stretch into a blind hole of the cam shaft and can also be pulled out of the blind hole of the cam shaft, and the overhanging end of the flushing rod is provided with a spraying hole. Therefore, the whole blind hole can be subjected to jet cleaning. The camshaft cleaning device is used for conducting jet flow cleaning on the hole wall and the hole bottom of the blind hole of the camshaft, and it is guaranteed that the cleanliness of the camshaft meets the requirement.

Description

Technical Field

[0001] The utility model relates to the field of cleaning, in particular to a device which uses a jet spraying method to clean the outer surface and blind holes of a camshaft. Background Art

[0002] A certain type of camshaft is about 1 meter long and has a blind hole. The centerline of the blind hole is arranged along the axis of the camshaft and the depth is close to 1 meter. The blind hole is used as an oil passage. When drilling radial holes in the camshaft, iron filings will enter the blind hole. The blind hole needs to be cleaned to ensure that the cleanliness of the camshaft meets the requirements.

[0003] There are two main existing cleaning methods: the first is cleaning by spraying + ultrasonic waves, and the second is cleaning by jets. External spraying + ultrasonic waves has a good cleaning effect on the outer surface of the camshaft, but it is not effective at the bottom of the blind hole. Under ultrasonic vibration, iron filings cannot be smoothly discharged from the blind hole. Jet cleaning of the blind hole from the outside of the blind hole, due to the large depth and small aperture of the blind hole, the jet cannot fully enter the blind hole. The jet can only clean the orifice area, and the cleaning effect on the bottom of the blind hole is not good, and the entire hole wall and bottom of the blind hole cannot be cleaned. Utility Model Content

[0004] The utility model provides a camshaft cleaning device, which solves the problem of how to clean the blind hole of the camshaft.

[0005] The technical solution adopted by the utility model is: a camshaft cleaning device comprises a frame, a movable frame installed on the frame and capable of linear reciprocating motion, and at least two rollers installed on the movable frame, the treads of the rollers are made of anti-skid material, and the rollers are connected via a rotating shaft, the axial direction of the rotating shaft is consistent with the reciprocating motion direction of the movable frame, and the rotating shaft is also transmission-connected to a first driving device for driving the rollers to rotate around the axis of the rotating shaft; the frame is provided with a camshaft placement position along the axial direction of the rotating shaft, and each roller is partially located on one side of the camshaft placement position, and each roller is also embedded in the camshaft placement position; the frame is also fixedly provided with a flushing rod, the center line of the flushing rod is parallel to the axis of the rotating shaft, one end of the flushing rod is a cantilevered end and is provided with a spray hole, the other end of the flushing rod is connected to the first water supply pipe, and the cantilevered section of the flushing rod is located at the camshaft placement position.

[0006] In order to perform jet cleaning on the blind hole of the camshaft while performing jet spray cleaning on the outer surface of the camshaft, further: a spray pipe is fixedly installed on the frame, the spray pipe is connected to the second water supply pipe, the spray pipe is arranged along the camshaft placement position, and a plurality of nozzles are arranged at intervals on the spray pipe, and the spray direction of each nozzle is toward the camshaft placement position. For example, the spray pipe is arranged directly above the camshaft placement position, and the nozzles are arranged at equal intervals along the length direction of the spray pipe; the spray pipe or the second water supply pipe is also provided with at least one nozzle whose spray direction is toward the end of the camshaft placement position away from the flushing rod.

[0007] The reciprocating motion of the moving frame can be operated automatically or manually. In order to facilitate the control of the moving frame to automatically realize the reciprocating motion, further: the frame is equipped with a second driving device that drives the moving frame to reciprocate along a straight line. For example, the second driving device is a cylinder.

[0008] In order to ensure the stability of the reciprocating motion of the moving frame, further: the reciprocating motion direction of the moving frame is horizontal, at least two sets of sliding mechanisms are arranged between the frame and the moving frame, and the sliding mechanism includes a slide rail and a slide groove adapted to the slide rail.

[0009] The roller rotates around the axis of the rotating shaft, which can drive the camshaft to rotate accordingly along its axial direction. In order to ensure that there is a sufficiently large friction coefficient between the roller and the camshaft, specifically: the material of the roller is resin.

[0010] In order to avoid splashing of water mist, further: a closed cleaning chamber is fixedly provided on the frame, the movable frame, roller, camshaft placement position, flushing rod and spray pipe are all located in the cleaning chamber, one end of the rotating shaft passes through the cleaning chamber and is transmission-connected to the first driving device, a drain pipe is provided at the bottom of the cleaning chamber, the cleaning chamber is provided with a door hole, and a door panel for opening and closing the door hole is provided at the door hole.

[0011] In order to facilitate observation of the cleaning chamber, further: the cleaning chamber is also provided with an observation hole, and the observation hole is closed by a transparent sealing plate.

[0012] In order to facilitate the movement of the rack, further: universal wheels are installed at the bottom of the rack.

[0013] In order to realize automatic control, further: a pressure pump is also installed on the frame, and the water outlet pipe of the pressure pump is connected to the first water supply pipe and the second water supply pipe respectively through a tee, and solenoid valves are respectively arranged on the first water supply pipe and the second water supply pipe. A control cabinet is installed on the frame, and the control cabinet is located outside the cleaning bin. A control device is arranged in the control cabinet, and the motor of the pressure pump, the first drive device, the second drive device and each solenoid valve are electrically connected to the control device.

[0014] In order to prevent impurities in the water from affecting the cleaning effect of the camshaft, a filter is further provided on the water inlet pipe or the water outlet pipe of the booster pump.

[0015] The beneficial effect of the camshaft cleaning device of the utility model is as follows: the camshaft is placed in the camshaft placement position of the frame, and the blind hole of the camshaft is directly opposite to the cantilevered end of the flushing rod. Since each roller is embedded in the camshaft placement position, each roller is stuck between two adjacent cams of the camshaft, and each roller plays an axial limit role on the camshaft. The roller is fixedly installed on the mobile frame, and the roller can reciprocate along the linear direction with the mobile frame, driving the camshaft to move along its axial direction accordingly, so that the cantilevered end of the flushing rod can be extended into the blind hole of the camshaft, and can also be withdrawn from the blind hole of the camshaft. Since the cantilevered end of the flushing rod is provided with a spray hole, the entire blind hole can be jet-cleaned. The driving mechanism can also drive the roller to rotate, and the rotation of the roller and the reciprocating motion of the mobile frame do not affect each other. The tread of the roller is made of anti-slip material. The rotation of the roller can drive the camshaft to rotate, ensuring that the flushing rod can evenly jet-clean the hole wall and the bottom of the blind hole, and clean the blind hole of the camshaft, so that the cleanliness of the camshaft meets the requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a partial structure of an example of a camshaft cleaning device of the utility model.

[0017] Reference numerals: frame 1, moving frame 2, roller 3, rotating shaft 4, flushing rod 5, spray pipe 6, drain pipe 7, universal wheel 8. DETAILED DESCRIPTION

[0018] The utility model will be further described below in conjunction with the accompanying drawings.

[0019] The camshaft cleaning device of the utility model is used to clean the blind hole of the camshaft. Due to the large depth of the blind hole, it is not easy to clean the inside of the blind hole. The utility model extends the flushing rod into the blind hole to perform jet cleaning to ensure that the cleanliness of the camshaft meets the requirements. Figure 1 The camshaft cleaning device of the utility model comprises a frame 1, a movable frame 2 and a roller 3. The frame 1 plays a supporting role and is generally a metal frame. In order to facilitate the movement of the frame 1, a universal wheel 8 is installed at the bottom of the frame 1, for example, a universal wheel 8 is respectively arranged at the four corners of the bottom of the frame 1. Among the four universal wheels 8, at least one universal wheel 8 is equipped with a brake, for example, two universal wheels 8 are equipped with brakes.

[0020] The mobile frame 2 is mounted on the frame 1 and can reciprocate along a straight line. In order to facilitate the stable reciprocating motion of the mobile frame 2, the direction of the reciprocating motion is preferably horizontal. The reciprocating motion of the mobile frame 2 can be driven manually or automatically. For example, the frame 1 is equipped with a second driving device that drives the mobile frame 2 to reciprocate along a straight line. For example, the second driving device is a cylinder. In order to ensure the stability of the reciprocating motion of the mobile frame 2 and avoid the reciprocating motion from being offset, at least two sets of sliding mechanisms are provided between the frame 1 and the mobile frame 2. For example, the sliding mechanism includes a slide rail and a slide groove adapted to the slide rail.

[0021] The mobile frame 2 is equipped with at least two rollers 3, each roller 3 is arranged along a straight line, each roller 3 is connected by a rotating shaft 4, the rotating shaft 4 is used to drive each roller 3 to rotate synchronously, and the axial direction of the rotating shaft 4 is consistent with the reciprocating direction of the mobile frame 2. The rotating shaft 4 is also connected to a first driving device for driving the roller 3 to rotate around the axis of the rotating shaft 4, and the first driving device is generally a motor and equipped with a reducer. The roller 3 is used to be inserted between two adjacent cams of the camshaft, and can drive the camshaft to reciprocate synchronously with the mobile frame 2 along its axial direction. The roller 3 rotates around the axis of the rotating shaft 4, and the camshaft is driven to rotate around its axis by friction. The diameters of the rollers 3 are consistent, and the thickness of the rollers 3 is not greater than the net spacing between the two adjacent cams of the camshaft, so that each roller 3 can be inserted between the two adjacent cams of the camshaft. In order to ensure that there should be a sufficiently large friction coefficient between the roller 3 and the camshaft to ensure that the camshaft and the roller 3 rotate synchronously, the tread of the roller 3 is a non-slip material, for example, the material of the roller 3 is resin or rubber.

[0022] The frame 1 is provided with a camshaft placement position along the axial direction of the rotating shaft 4, and the camshaft placement position is used to place the camshaft to be cleaned. Each roller 3 is partially located on one side of the camshaft placement position, and each roller 3 is also embedded in the camshaft placement position. After the camshaft is installed in the camshaft placement position of the frame 1, each roller 3 is inserted between two adjacent cams of the camshaft.

[0023] The frame 1 is fixedly mounted with a flushing rod 5, which is used to extend into the blind hole of the camshaft for jet cleaning. The center line of the flushing rod 5 is parallel to the axis of the rotating shaft 4. One end of the flushing rod 5 is a cantilevered end. The cantilevered section of the flushing rod 5 is located at the camshaft placement position to ensure that when the camshaft reciprocates with the moving frame 2, the flushing rod 5 can smoothly extend into the blind hole and can also be smoothly pulled out of the blind hole. The cantilevered end of the flushing rod 5 is provided with a spray hole, and the other end of the flushing rod 5 is connected to the first water supply pipe. The entire cantilevered section of the flushing rod 5 can be evenly provided with spray holes, or only a circle of spray holes can be provided near the cantilevered end. The jet direction of the spray hole is preferably inclined in the direction away from the cantilevered end, which is conducive to discharging impurities from the blind hole.

[0024] In order to perform jet cleaning on the blind hole of the camshaft while performing jet spray cleaning on the outer surface of the camshaft, a spray pipe 6 is also fixedly installed on the frame 1, and the spray pipe 6 is connected to the second water supply pipe. The spray pipe 6 is arranged along the camshaft placement position, and the spray pipe 6 is provided with multiple nozzles at intervals, and the spray direction of each nozzle is toward the camshaft placement position. For example, the spray pipe 6 is arranged directly above the camshaft placement position, and the spray direction of each nozzle is vertically downward, and each nozzle is arranged at equal intervals along the length direction of the spray pipe 6. In order to spray the end of the camshaft, the spray pipe 6 or the second water supply pipe is also provided with at least one nozzle whose spray direction is toward the end of the camshaft placement position away from the flushing rod.

[0025] The camshaft can be cleaned in an open environment. In order to avoid water mist splashing, a closed cleaning chamber is fixed on the frame 1, and the mobile frame 2, the roller 3, the camshaft placement position, the flushing rod 5 and the spray pipe 6 are all located in the cleaning chamber. One end of the rotating shaft 4 passes through the cleaning chamber and is connected to the first driving device. The first driving device is generally a motor. A drain pipe 7 is provided at the bottom of the cleaning chamber, and the drain pipe 7 is connected to the lowest point of the cleaning chamber. The cleaning chamber is provided with a door hole, and a door plate for opening and closing the door hole is provided at the door hole. The length of the door hole is preferably greater than the length of the camshaft to facilitate the removal and placement of the camshaft. The door plate can be opened and closed by hinged flipping, push-pull sliding or other methods. For example, the door plate is slidably installed and controlled by a cylinder. In order to facilitate observation of the cleaning chamber, the cleaning chamber is also provided with an observation hole, and the observation hole is closed by a transparent sealing plate.

[0026] In order to make the water pressure reach the predetermined pressure, a booster pump is also installed on the frame 1. The booster pump is equipped with a motor. The outlet pipe of the booster pump is connected to the first water supply pipe and the second water supply pipe through a tee. Valves are respectively provided on the first water supply pipe and the second water supply pipe to realize the separate control of different water supply pipes. For example, the efficiency of the booster pump is 58.5%, and the flow rate is 8m 3 / h, head 130m, power 5.5kW. In order to avoid impurities in the water that affect the cleaning effect of the camshaft, a filter is also provided on the water inlet pipe or the water outlet pipe of the booster pump. The valves on the first water supply pipe and the second water supply pipe are preferably solenoid valves that can be automatically controlled. A control cabinet can also be installed on the frame 1. The control cabinet is located outside the cleaning bin to prevent water vapor from entering the control cabinet. A control device is provided in the control cabinet, and the motor of the booster pump, the first drive device, the second drive device and each solenoid valve are electrically connected to the control device.

Claims

1. Camshaft cleaning device, characterized in that: The invention comprises a frame (1), a moving frame (2) mounted on the frame (1) and capable of linear reciprocating motion, and at least two rollers (3) mounted on the moving frame (2), wherein the tread of the rollers (3) is made of a non-slip material, and each roller (3) is connected via a rotating shaft (4), wherein the axial direction of the rotating shaft (4) is consistent with the reciprocating motion direction of the moving frame (2), and the rotating shaft (4) is also drivingly connected to a first driving device for driving the rollers (3) to rotate around the axial direction of the rotating shaft (4); the frame (1) ) A camshaft placement position is provided along the axis direction of the rotating shaft (4), each roller (3) is partially located on one side of the camshaft placement position, and each roller (3) is also embedded in the camshaft placement position; the frame (1) is also fixedly mounted with a flushing rod (5), the center line of the flushing rod (5) is parallel to the axis of the rotating shaft (4), one end of the flushing rod (5) is a cantilevered end and is provided with a spray hole, the other end of the flushing rod (5) is connected to the first water supply pipe, and the cantilevered section of the flushing rod (5) is located at the camshaft placement position.

2. The camshaft cleaning device according to claim 1, characterized in that: A spray pipe (6) is also fixedly mounted on the frame (1), the spray pipe (6) is connected to the second water supply pipe, the spray pipe (6) is arranged along the camshaft placement position, a plurality of nozzles are arranged at intervals on the spray pipe (6), and the spray direction of each nozzle is toward the camshaft placement position.

3. The camshaft cleaning device according to claim 2, characterized in that: The spray pipe (6) is arranged directly above the camshaft placement position, and the nozzles are arranged at equal intervals along the length direction of the spray pipe (6); the spray pipe (6) or the second water supply pipe is also provided with at least one nozzle with a spray direction toward the end of the camshaft placement position away from the flushing rod.

4. The camshaft cleaning device according to claim 1, characterized in that: The frame (1) is equipped with a second driving device for driving the moving frame (2) to reciprocate along a straight line.

5. The camshaft cleaning device according to claim 1, characterized in that: The reciprocating direction of the movable frame (2) is horizontal. At least two sets of sliding mechanisms are arranged between the frame (1) and the movable frame (2). The sliding mechanisms include sliding rails and sliding grooves adapted to the sliding rails.

6. The camshaft cleaning device according to claim 1, characterized in that: The material of the roller (3) is resin.

7. The camshaft cleaning device according to any one of claims 1 to 6, characterized in that: A closed cleaning chamber is fixedly arranged on the frame (1); a movable frame (2), a roller (3), a camshaft placement position, a flushing rod (5) and a spray pipe (6) are all located in the cleaning chamber; one end of a rotating shaft (4) passes through the cleaning chamber and is transmission-connected to a first driving device; a drainage pipe (7) is arranged at the bottom of the cleaning chamber; a door hole is arranged in the cleaning chamber; and a door panel for opening and closing the door hole is arranged at the door hole.

8. The camshaft cleaning device according to claim 7, characterized in that: The cleaning chamber is also provided with an observation hole, which is closed by a transparent sealing plate. Universal wheels (8) are installed at the bottom of the frame (1).

9. The camshaft cleaning device according to claim 7, characterized in that: A booster pump is also installed on the frame (1). The water outlet pipe of the booster pump is connected to the first water supply pipe and the second water supply pipe respectively through a tee. Solenoid valves are respectively arranged on the first water supply pipe and the second water supply pipe. A control cabinet is installed on the frame (1). The control cabinet is located outside the cleaning bin. A control device is arranged in the control cabinet. The motor of the booster pump, the first drive device, the second drive device and each solenoid valve are electrically connected to the control device.

10. The camshaft cleaning device according to claim 8, characterized in that: A filter is also provided on the water inlet pipe or the water outlet pipe of the booster pump.

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