Round corner rolling device for crankshaft head journal

Abstract

The utility model discloses a crankshaft head journal fillet rolling device which comprises a main body module. The main body module comprises a shell, two movable seats rotationally installed on the shell, fixed shafts fixed to the ends of the movable seats, rolling wheels rotationally connected to the fixed shafts in a sleeving mode, bolts meshed with the fixed shafts, supports symmetrically fixed to the ends of the movable seats, and telescopic pieces installed at the top end of the shell and stretching into the shell. The angle sensor is installed on one side of the shell, the display screen is installed on the shell, the shell is used for installing other assemblies, fixed seats are symmetrically arranged on the shell and used for connecting the shell with a driving device, through holes are symmetrically formed in the two sides of the shell, protrusions are arranged on the two sides of a movable seat, and the protrusions are rotationally embedded in the through holes. The crankshaft head journal fillet rolling device ensures that the movable seat is fixedly connected with the shell, meanwhile, the movable seat can rotate conveniently, and the crankshaft head journal fillet rolling device has the advantages of being capable of adjusting the included angle of the relative rolling wheels and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of crankshaft production, in particular to a crankshaft head journal fillet rolling device. Background Art

[0002] The crankshaft is one of the important parts in the engine, and its mechanical properties directly determine the life of the engine. The crankshaft failure generally takes the form of journal wear and fatigue fracture. For fatigue fracture, the journal fillet rolling method is generally used to improve its fatigue strength. The rolling head used in the fillet rolling process is generally two rollers of the same size that roll the double-sided fillets at the same time, and their axial forces offset each other.

[0003] The existing crankshaft journal fillet rolling device has the following main drawbacks during use: the angle between the relative rolling wheels cannot be adjusted. Therefore, when operating the crankshaft journals of different gears, it is necessary to replace rolling devices with different angles, which is rather troublesome. Therefore, there is room for improvement. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0005] To this end, the technical solution adopted by the utility model is: a crankshaft head journal fillet rolling device, comprising: a main body module, the main body module includes a shell, two movable seats rotatably mounted on the shell, a fixed shaft fixed to the end of the movable seat, a rolling wheel rotatably sleeved on the fixed shaft, a bolt engaged on the fixed shaft, a bracket symmetrically fixed to the end of the movable seat, a telescopic part installed at the top of the shell and extending into the shell, an angle sensor installed on one side of the shell, and a display screen installed on the shell.

[0006] The end of the telescopic member is movably engaged with the bracket.

[0007] In a preferred example, the utility model can be further configured as follows: the telescopic member includes an electric telescopic rod installed on the top of the shell and extending into the inner cavity of the shell, and a cross bar fixed to the end of the electric telescopic rod.

[0008] In a preferred example, the utility model can be further configured as follows: the brackets on the movable seat are arranged in a staggered manner, waist-shaped holes are opened on the brackets, and the crossbar passes through the waist-shaped holes on the brackets on both sides.

[0009] In a preferred example, the utility model can be further configured as follows: through holes are symmetrically opened on both sides of the shell, and protrusions are arranged on both sides of the movable seat, and the protrusions are rotatably embedded in the through holes.

[0010] In a preferred example, the utility model can be further configured as follows: a thread groove is opened on one side of the fixed shaft, and the bolt is engaged in the thread groove.

[0011] In a preferred example, the present invention can be further configured as follows: the angle sensor is fixedly connected to a protrusion on one side of the movable seat.

[0012] In a preferred example, the present invention can be further configured as follows: the output end of the angle sensor is electrically connected to the input end of the display screen through an electric wire.

[0013] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0014] 1. In the utility model, two movable seats are hingedly installed on the shell, and a fixed shaft is fixed at one end of the movable seat. The rolling wheel is rotatably sleeved on the fixed shaft and fixed by bolts. At the same time, a bracket is symmetrically arranged at the other end of the movable seat, and a waist-shaped hole is opened on the bracket. The brackets on the movable seats on both sides are staggered. A telescopic member extending into the inner cavity of the shell is installed at the top of the shell. Through the above arrangement, when the telescopic member is extended or retracted, it drives the bracket to expand or contract, that is, drives the movable seat to rotate, so that the angle between the relative rolling wheels can be adjusted, thereby realizing the adjustment of the rolling wheel angle and increasing the practical performance.

[0015] 2. In the utility model, an angle sensor is installed on one side of the shell to monitor the rotation angle of the movable seat in real time, and a display screen is installed on the shell to display the rotation angle of the movable seat, so that the operator can know the angle of the rolling wheel, which further increases the practical performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the exploded structure of the utility model;

[0019] Figure 4 This is a partial structural decomposition diagram of the utility model

[0020] Figure 5 It is a partial structural schematic diagram of the utility model.

[0021] Reference numerals:

[0022] 100. Main body module; 110. Shell; 111. Through hole; 120. Movable seat; 121. Protrusion; 130. Fixed axis; 131. Threaded groove; 140. Rolling wheel; 150. Bolt; 160. Bracket; 161. Waist-shaped hole; 170. Telescopic part; 171. Electric telescopic rod; 172. Cross bar; 180. Angle sensor; 190. Display screen. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0024] Some embodiments of the present invention are described below in conjunction with the accompanying drawings. Embodiment 1

[0025] Combination Figure 1-5 As shown, this embodiment provides a crankshaft head journal fillet rolling device, including: a main body module 100.

[0026] The main module 100 includes a shell 110, two movable seats 120 rotatably mounted on the shell 110, a fixed shaft 130 fixed to the end of the movable seat 120, a rolling wheel 140 rotatably sleeved on the fixed shaft 130, a bolt 150 engaged on the fixed shaft 130, a bracket 160 symmetrically fixed to the end of the movable seat 120, a telescopic part 170 installed at the top of the shell 110 and extending into the shell 110, an angle sensor 180 installed on one side of the shell 110, and a display screen 190 installed on the shell 110.

[0027] The shell 110 is used to install other components. A fixed seat is symmetrically arranged on the shell 110 for connecting the shell 110 with the driving device. Through holes 111 are symmetrically opened on both sides of the shell 110, and protrusions 121 are arranged on both sides of the movable seat 120. The protrusions 121 are rotatably engaged in the through holes 111, which ensures that the movable seat 120 is fixedly connected to the shell 110 while facilitating the rotation of the movable seat 120.

[0028] The fixed shaft 130 is fixed to the end of the movable seat 120 and is used to install the rolling wheel 140. The rolling wheel 140 is rotatably sleeved on the fixed shaft 130 and is used to roll the crankshaft journal. A threaded groove 131 is opened on one side of the fixed shaft 130. The bolt 150 is engaged in the threaded groove 131 and is used to limit and fix the rolling wheel 140 to ensure the stability of the rolling wheel 140 during rotation.

[0029] The brackets 160 on the movable seat 120 are staggered, and waist-shaped holes 161 are opened on the brackets 160. At the same time, the telescopic member 170 includes an electric telescopic rod 171 installed on the top of the shell 110 and extending into the inner cavity of the shell 110, and a cross bar 172 fixed to the end of the electric telescopic rod 171. The cross bar 172 passes through the waist-shaped holes 161 on the brackets 160 on both sides. When the electric telescopic rod 171 drives one end of the bracket 160 to move upward, the end of the movable seat 120 away from the movable seat 120 is contracted, that is, the angle between the movable seat 120 is reduced, which drives the angle between the relative roller wheels to reduce. Conversely, the angle between the relative rolling wheels 140 is adjusted in the same way.

[0030] The angle sensor 180 is fixedly connected to the protrusion 121 on one side of the movable seat 120, and is used to monitor the rotation angle of the movable seat 120 in real time, and transmit the rotation angle of the movable seat 120 to the display screen 190 for display, so that the operator can accurately know the angle between the relative rolling wheels 140.

[0031] The working principle and use process of the utility model are as follows: when it is necessary to adjust the angle of the rolling wheel 140, the electric telescopic rod 171 is started, and the electric telescopic rod 171 is started to drive the cross bar 172 to move. When the cross bar 172 moves up, it drives one end of the bracket 160 to move up, and at the same time, the bracket 160 is fixed to the movable seat 120, so that the end of the movable seat 120 away from the bracket 160 is retracted, that is, the angle between the relative movable seat 120 is reduced, and the angle between the relative roller wheels is reduced. When the cross bar 172 moves down, it drives one end of the right angle to move down, so that the end of the movable seat 120 away from the bracket 160 is expanded, that is, the angle between the relative movable seat 120 is increased, and the angle between the relative rolling wheels 140 is increased. At this time, the angle sensor 180 monitors the rotation angle of the movable seat 120 in real time, and transmits the angle data to the real screen for display, which is convenient for the operator to know.

[0032] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A crankshaft head journal fillet rolling device, comprising: A main body module (100), characterized in that the main body module (100) comprises a shell (110), two movable seats (120) rotatably mounted on the shell (110), a fixed shaft (130) fixed to the end of the movable seat (120), a rolling wheel (140) rotatably sleeved on the fixed shaft (130), a bolt (150) engaged with the fixed shaft (130), a bracket (160) symmetrically fixed to the end of the movable seat (120), a telescopic member (170) mounted on the top of the shell (110) and extending into the shell (110), an angle sensor (180) mounted on one side of the shell (110), and a display screen (190) mounted on the shell (110); The end of the telescopic member (170) is movably engaged with the bracket (160).

2. A crankshaft head journal fillet rolling device according to claim 1, characterized in that: The telescopic member (170) comprises an electric telescopic rod (171) mounted on the top end of the housing (110) and extending into the inner cavity of the housing (110), and a cross bar (172) fixed to the end of the electric telescopic rod (171).

3. A crankshaft head journal fillet rolling device according to claim 2, characterized in that: The brackets (160) on the movable seat (120) are arranged in a staggered manner, and waist-shaped holes (161) are opened on the brackets (160). The crossbar (172) passes through the waist-shaped holes (161) on the brackets (160) on both sides.

4. A crankshaft head journal fillet rolling device according to claim 1, characterized in that: Through holes (111) are symmetrically formed on both sides of the shell (110), and protrusions (121) are provided on both sides of the movable seat (120), and the protrusions (121) are rotatably embedded in the through holes (111).

5. The crankshaft head journal fillet rolling device according to claim 1, characterized in that: A thread groove (131) is formed on one side of the fixed shaft (130), and the bolt (150) is engaged in the thread groove (131).

6. A crankshaft head journal fillet rolling device according to claim 4, characterized in that: The angle sensor (180) is fixedly connected to a protrusion (121) on a movable seat (120) at one side.

7. A crankshaft head journal fillet rolling device according to claim 1, characterized in that: The output end of the angle sensor (180) is electrically connected to the input end of the display screen (190) via an electric wire.

Images