A cleaning tool for crankshaft surface after quenching

Abstract

The utility model discloses a cleaning tool for the surface of a crankshaft after quenching, wherein a V-shaped support frame is provided, the V-shaped support frame is provided with two round through holes, a roller shaft is provided between the two V-shaped support frames, a rotating shaft is passed through the two round through holes and the roller shaft, and two ends of the crankshaft are placed on the V-shaped support frame; a cleaning component is provided at the outer end of the V-shaped support frame, and the cleaning component includes a movable crossbeam arranged above the crankshaft, longitudinal guide rails are arranged on both sides of the movable crossbeam, the movable crossbeam is slidably connected to the longitudinal guide rails, the lower bottom end of the movable crossbeam corresponds to the upper part of the crankshaft, the lower bottom end of the movable crossbeam is provided with a transverse slideway, and the cleaning roller brush is slidably assembled in the transverse slideway. The utility model has the advantages of realizing rotation in the cleaning tank, so that the entire surface of the crankshaft can be cleaned, the cleaning roller brush utilizes the structural characteristics of the crankshaft to be placed above the central axis for work, and can timely clean other parts such as the connecting rod journal, the balancing block, the crankshaft main journal, etc.

Description

Technical Field

[0001] The utility model relates to the field of mechanical manufacturing, in particular to a cleaning device for the outer surface of a crankshaft. Background Art

[0002] In order to improve the fatigue strength of the crankshaft, surface quenching is used to strengthen the surface heat treatment of the crankshaft. To ensure the quenching effect of the crankshaft surface, the surface quenching process of the crankshaft is carried out on the crankshaft surface quenching machine. The quenching medium remaining on the crankshaft surface after quenching needs to be cleaned and removed. At the same time, the crankshaft has been processed with oil channel holes before surface quenching. Due to the size and angle restrictions, the quenching medium in the oil first hole cannot be effectively removed during immersion cleaning in the cleaning tank, which affects the subsequent crankshaft processing process and the cleanliness of the crankshaft product. Utility Model Content

[0003] In order to solve the above problems, the utility model discloses a cleaning tool for the crankshaft surface after quenching.

[0004] The specific technical solutions are as follows:

[0005] A crankshaft surface cleaning tool after quenching, a V-shaped support frame is provided, the V-shaped support frame is provided with two round through holes, a roller shaft is provided between the two V-shaped support frames, a rotating shaft is passed through the two round through holes and the roller shaft, and both ends of the crankshaft are placed on the V-shaped support frame; a cleaning component is provided at the outer end of the V-shaped support frame, and the cleaning component includes a movable crossbeam arranged above the crankshaft, longitudinal guide rails are arranged on both sides of the movable crossbeam, the movable crossbeam is slidably connected to the longitudinal guide rail, the lower bottom end of the movable crossbeam corresponds to the upper part of the crankshaft, the lower bottom end of the movable crossbeam is provided with a transverse slide, and a cleaning roller brush is slidably assembled in the transverse slide.

[0006] The longitudinal guide rail is vertically placed at the central axis of the crankshaft, and the movable crossbeam is also arranged above the central axis of the crankshaft, and the central axis of the cleaning roller brush is arranged parallel to the central axis of the crankshaft.

[0007] The radius of the cleaning roller brush is greater than the distance between the center of the connecting rod journal and the center of the crankshaft.

[0008] A gear is arranged at one end of the roller shaft, and a rotating motor is also arranged on one side of the V-shaped support frame. The output end of the rotating motor meshes with the gear to drive the roller shaft to rotate.

[0009] The utility model has the following advantages: after the original ship engine crankshaft is quenched, it is placed in a special cleaning tank and can only be cleaned by immersion, and the oil holes at different angles cannot be cleaned. After the support frame tooling with rollers is added, the crankshaft can be rotated in the cleaning tank, so that the entire surface of the crankshaft can be cleaned. The cleaning roller brush utilizes the structural characteristics of the crankshaft to be placed above the central axis to work, and other parts such as the connecting rod journal, the balancing block, the crankshaft main journal, etc. can be cleaned in time, with high cleaning efficiency, greatly saving the work of manual cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0011] Figure 2 This is a second overall structural schematic diagram of the utility model;

[0012] Figure 3 This is the three-phase diagram of the working position of the cleaning roller brush. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0014] A cleaning tool for a crankshaft after surface quenching, comprising a V-shaped support frame 1, two round through holes 2 being arranged on the V-shaped support frame 1, a roller shaft 3 being arranged between the two V-shaped support frames, a rotating shaft 4 being passed through the two round through holes 2 and the roller shaft 3, and two ends of a crankshaft 5 being placed on the V-shaped support frame 1; a cleaning assembly 6 is arranged at the outer end of the V-shaped support frame 1, and the cleaning assembly 6 comprises a movable crossbeam 62 arranged above the crankshaft 5, longitudinal guide rails 61 being arranged on both sides of the movable crossbeam 62, the movable crossbeam 62 being slidably connected to the longitudinal guide rail 61, the lower bottom end of the movable crossbeam 62 corresponds to the upper side of the crankshaft 5, a transverse slideway 62a is arranged at the lower bottom end of the movable crossbeam 62, and a cleaning roller brush 7 is slidably assembled in the transverse slideway 62a.

[0015] The longitudinal guide rail 61 is vertically placed at the central axis of the crankshaft 5 , and the movable crossbeam 62 is also arranged above the central axis of the crankshaft 5 . The central axis of the cleaning roller brush 7 is arranged parallel to the central axis of the crankshaft 5 .

[0016] The radius R1 of the cleaning roller brush 7 is larger than the distance A between the connecting rod journal center 51 and the crankshaft center 52 , that is, R1>A.

[0017] A gear is disposed at one end of the roller shaft 3 , and a rotary motor 8 is disposed on one side of the V-shaped support frame. The output end of the rotary motor 8 meshes with the gear to drive the roller shaft 3 to rotate.

[0018] The working principle of the utility model is: the crankshaft is placed on the tooling, the end surface of the V-shaped support frame abuts against the crankshaft to limit the movement of the crankshaft, firstly, the movable crossbeam is lowered to a suitable position, so that the edge of the cleaning roller brush contacts the outer surface of the connecting rod journal, taking one side of the connecting rod journal as an example, Figure 3 As shown, the cleaning roller brush starts to rotate (the cleaning roller brush can be driven electrically), and then the moving crossbeam continues to be lowered so that the cleaning range of the cleaning roller brush gradually covers one side of the connecting rod journal ( Figure 3 The cleaning roller brush has a certain thickness, so the crank 53 on both sides of the connecting rod journal can also be cleaned. Figure 3 Only the three phase positions of the cleaning roller brush are shown, so the other side of the connecting rod journal ( Figure 3 The right side section line mark) will also be cleaned by the cleaning roller brush. Since the main shaft neck is located directly below the cleaning roller brush, it can be cleaned by the cleaning roller brush. After the rotating motor is started, the moving beam will rise to prevent the cleaning roller brush from rotating and interfering with the crankshaft. The rotation of the roller shaft drives the crankshaft to rotate at the same time. Therefore, when the crankshaft of the cleaning roller brush rotates to the position that needs to be cleaned, the rotating motor can stop working, and the cleaning roller brush descends to continue working on the uncleaned surface. According to needs, multiple cleaning roller brushes can be evenly distributed in the transverse slideway 62a of the moving beam.

Claims

1. A cleaning tool for crankshaft surface after quenching, characterized in that: A V-shaped support frame is provided, wherein two round through holes are provided on the V-shaped support frame, a roller shaft is provided between the two V-shaped support frames, a rotating shaft is passed through the two round through holes and the roller shaft, and two ends of the crankshaft are placed on the V-shaped support frame; a cleaning component is provided at the outer end of the V-shaped support frame, and the cleaning component includes a movable crossbeam provided above the crankshaft, longitudinal guide rails are provided on both sides of the movable crossbeam, the movable crossbeam is slidably connected to the longitudinal guide rail, the lower bottom end of the movable crossbeam corresponds to the upper part of the crankshaft, a transverse slide is provided at the lower bottom end of the movable crossbeam, and a cleaning roller brush is slidably assembled in the transverse slide.

2. The crankshaft surface cleaning tool after quenching according to claim 1 is characterized in that: The longitudinal guide rail is vertically placed at the central axis of the crankshaft, and the movable crossbeam is also arranged above the central axis of the crankshaft, and the central axis of the cleaning roller brush is arranged parallel to the central axis of the crankshaft.

3. The crankshaft surface cleaning tool after quenching according to claim 1 is characterized in that: The radius of the cleaning roller brush is greater than the distance between the center of the connecting rod journal and the center of the crankshaft.

4. The crankshaft surface cleaning tool after quenching according to claim 1, characterized in that: A gear is arranged at one end of the roller shaft, and a rotating motor is also arranged on one side of the V-shaped support frame. The output end of the rotating motor meshes with the gear to drive the roller shaft to rotate.

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