Automatic transition mechanism of a chain-type crankshaft cleaning machine

Abstract

The utility model provides an automatic transition mechanism for a chain-type crankshaft cleaning machine, which relates to the technical field of crankshaft transfer, and solves the technical problems that the existing crankshaft unloading and transfer has high labor intensity, the manipulator transfer equipment is expensive and has high maintenance costs, and the general unloading device causes great damage to the crankshaft. The utility model includes two sets of bearings with inner ring shafts connected to both ends of the sprocket drive shaft of the cleaning machine, and the outer rings of the bearings are provided with dials, and a transition plate for receiving and transferring the crankshaft is provided between the two sets of dials, and the dials are provided with a tension spring seat for rebounding the transition plate, and the tension spring seat is provided with a tension spring connected to the tension spring seat at one end and connected to the cleaning machine at the other end. The utility model can stably receive and transfer the crankshaft, and after receiving and transferring a group of crankshafts, the transition plate returns in time to receive and transfer the next group of crankshafts through the action of the tension spring seat and the tension spring, thereby realizing automatic transfer, saving manpower, improving efficiency, and not causing damage to the crankshaft. The modification and installation are simple and do not affect the original cleaning machine.

Description

Technical Field

[0001] The utility model relates to the technical field of crankshaft transfer, in particular to an automatic transition mechanism of a chain-type crankshaft cleaning machine. Background Art

[0002] After the crankshaft is processed, it needs to be cleaned and then dipped in anti-rust oil. There are two main types of crankshaft cleaning machines: robot cleaning machines and pass-through cleaning machines. Pass-through cleaning machines are divided into two main transmission modes: chain transmission and lever stepping transmission. Oiling machines usually have two types: chain belt passing type and robot gripping type. Regardless of the type of cleaning machine and oiling machine, the products are currently transferred between the cleaning machine and the oiling machine by manual or robot manipulators.

[0003] For example, the large crankshaft cleaning equipment and crankshaft cleaning method proposed in the patent with publication number CN110000155A transfers the cleaned crankshaft to the drying device through a transfer manipulator; transfers the dried crankshaft to the drying device; transfers the dried crankshaft to the cooling device; transfers the cooled crankshaft to the unloading device; the unloading device includes a transport mechanism and a second grating for positioning the crankshaft on the transport mechanism. The transport mechanism includes a transport belt and a motor connected to the transport belt, and the output shaft of the motor is connected to the transport belt to drive the transport belt to rotate, thereby transporting the crankshaft.

[0004] Manual transfer of products is labor-intensive, has a poor working environment, and has high labor costs. Robot manipulator equipment is of high value, but the initial investment and subsequent maintenance costs are high. Moreover, the cover unloading device is only designed for crankshaft cleaning. It is conveyed on the belt, and the crankshaft falls at the end of the belt or is manually transferred to the next operation link. The labor intensity of manual transfer is high, and the free fall of the crankshaft will cause great damage to the crankshaft. Utility Model Content

[0005] The utility model aims to provide an automatic transition mechanism for a chain crankshaft cleaning machine to solve the technical problems that the existing crankshaft unloading and transportation has high labor intensity in manual transportation, the robot transportation equipment is expensive and has high maintenance cost, and the general unloading device causes great damage to the crankshaft.

[0006] The embodiments of the present invention are implemented by the following technical solutions:

[0007] An automatic transition mechanism for a chain crankshaft cleaning machine comprises bearings axially connected to both ends of a sprocket drive shaft of the cleaning machine, a dial is provided on the outer ring of the bearing, a transition plate for receiving and transferring the crankshaft is provided between two groups of the dials, the dial is provided with a tension spring seat for rebounding the transition plate; the tension spring seat is connected to one end of a tension spring, and the other end of the tension spring is connected to the cleaning machine.

[0008] By adopting the technical solution, the dial and the transition plate are rotatably connected to the sprocket drive shaft of the cleaning machine through the bearing, and the transition plate can rotate freely at the end of the cleaning machine. Therefore, during the rotation of the transition plate, the crankshaft transported to the end of the cleaning machine can be connected to the transition plate, and the transition plate is pressed down by the gravity of the crankshaft, and rotates downward. The transition plate only rotates along the sprocket drive shaft of the cleaning machine, and almost no radial deviation occurs, so the crankshaft can be stably received and transported to the next step. After receiving and transporting a group of crankshafts, the transition plate returns in time to receive and transport the next group of crankshafts through the action of the tension spring seat and the tension spring. This mechanism efficiently receives and transports the crankshafts that have been cleaned by the chain cleaning machine and safely transports them to the next step, thereby realizing automated transportation, saving manpower, and improving efficiency. It will not cause damage to the crankshaft, and the modification and installation are simple, and it will not affect the original cleaning machine.

[0009] Preferably, one end of the cleaning machine sprocket transmission shaft is also axially connected to a ratchet, and the dial is hingedly provided with a pawl that can slide on the ratchet tooth surface in the opposite direction of the ratchet rotation direction.

[0010] By adopting the technical solution, the transition plate can only transfer the crankshaft from a high place to a low place by reciprocating through the bearing, thus realizing one-way transfer. By adding a ratchet and a pawl, when the ratchet moves clockwise or the transition plate rebounds counterclockwise, the pawl slides on the tooth surface of the ratchet, and the ratchet and the pawl do not affect the transfer and rebound of the transition plate. On the basis of the original one-way transfer, the ratchet and the pawl can also be moved intermittently in one direction, the ratchet pushes the pawl counterclockwise, the pawl drives the dial to rotate, and the transition plate pushes the crankshaft, so that the crankshaft can be transported in a single reverse direction, and the forward transportation of the bearing can be combined to realize the two-way transportation of the crankshaft.

[0011] Preferably, the transition plate is further provided with a baffle for receiving the crankshaft, and when the transition plate is in an initial position, the baffle is parallel to the sprocket conveyor belt of the cleaning machine.

[0012] By adopting the technical solution, the baffle plate can cooperate with the ratchet wheel to rotate in the opposite direction to transfer a single crankshaft from a low position back to a high position.

[0013] Preferably, the dial is further provided with a pawl pin for hingedly connecting the pawl.

[0014] By adopting this technical solution, the pawl is provided with a pawl pin, and the pawl can be adjusted by the pawl pin. During reverse transportation, after the transition plate transfers the crankshaft from a low place to a high place, the dial and the transition plate can be reset by adjusting the pawl pin and the pawl to carry out reverse transportation of the next group of crankshafts.

[0015] Preferably, the cleaning machine sprocket drive shaft is also provided with a sleeve for connecting the bearing inner ring and the ratchet.

[0016] By adopting this technical solution, the bearing and the ratchet are connected to the cleaning machine sprocket drive shaft through the shaft sleeve shaft to prevent the crankshaft from being too heavy during transportation, causing the crankshaft weight to press down and cause the transition plate to drop rapidly, thereby causing damage to the cleaning machine sprocket.

[0017] Preferably, the ratchet is also provided with a set screw for connecting to the sprocket drive shaft of the cleaning machine.

[0018] By adopting this technical solution, the ratchet shaft is connected to the sprocket drive shaft of the cleaning machine through a set screw to prevent the two from offsetting, causing instability in the crankshaft transfer process and causing a transfer accident.

[0019] Preferably, the cleaning machine is further provided with a stop lever for limiting the initial position of the transition plate.

[0020] By adopting this technical solution, the shift rod prevents the transition plate from rebounding and colliding with the crankshaft under the action of the tension spring.

[0021] Preferably, the bearing is provided with a counterweight block at one end away from the dial for balancing the weight of the transition plate.

[0022] By adopting this technical solution, the counterweight block can prevent the transition plate from descending too quickly when the crankshaft is being transferred, thereby causing damage to the transfer mechanism.

[0023] Preferably, the counterweight block is provided with a screw and a nut for connecting the dial.

[0024] Preferably, a hole retaining spring for axially fixing the bearing is provided on the inner side of the bearing end surface, and a shaft retaining spring for axially fixing the bearing is provided on the outer side of the bearing end surface.

[0025] The adoption of this technical solution ensures that the bearing will not be axially offset, thereby ensuring the stability of the transfer mechanism.

[0026] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0027] 1. The utility model mechanism efficiently receives and transfers the crankshaft cleaned by the chain cleaning machine, and safely transfers it to the next step, realizing the automation of transfer, saving manpower, improving efficiency, and not causing damage to the crankshaft;

[0028] 2. The utility model is easy to install and does not affect the original cleaning machine;

[0029] 3. The utility model can realize bidirectional transportation of the crankshaft by adding a ratchet and a pawl. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A side structural schematic diagram of the automatic transition mechanism of the chain crankshaft cleaning machine provided in Example 1 of the utility model;

[0032] Figure 2 A front view structural diagram of the automatic transition mechanism of the chain crankshaft cleaning machine provided in Example 1 of the utility model;

[0033] Figure 3 A partially enlarged schematic diagram of the side view structure of the automatic transition mechanism of the chain crankshaft cleaning machine provided in Example 1 of the utility model;

[0034] Figure 4 A partially enlarged schematic diagram of the front view structure of the automatic transition mechanism of the chain crankshaft cleaning machine provided in Example 2 of the utility model;

[0035] Icons: 1. Counterweight; 2. Ratchet; 3. Pawl; 4. Pawl pin; 5. Shift lever; 6. Dial; 7. Transition plate; 8. Tension spring seat; 9. Tension spring; 10. Bushing; 11. Set screw; 12. Bearing; 13. Circlip for hole; 14. Circlip for shaft; 15. Screw; 16. Nut; 17. Crankshaft; 18. Cleaning machine sprocket drive shaft; 19. Cleaning machine; 20. Baffle. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0039] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] Example 1

[0042] A chain crankshaft cleaning machine automatic transition mechanism includes a bearing 12 axially connected to both ends of a sprocket drive shaft 18 of the cleaning machine, a dial 6 is provided on the outer ring of the bearing 12, a transition plate 7 for receiving and transferring a crankshaft 17 is provided between two groups of the dials 6, the dial 6 is provided with a tension spring seat 8 for rebounding the transition plate 7; the tension spring seat 8 is connected to one end of a tension spring 9, and the other end of the tension spring 9 is connected to a cleaning machine 19.

[0043] By adopting the technical solution, the dial 6 and the transition plate 7 are rotatably connected to the cleaning machine sprocket drive shaft 18 through the bearing 12, and the transition plate 7 can rotate freely at the end of the cleaning machine 19. Therefore, during the rotation of the transition plate 7, the crankshaft 17 transported to the end of the cleaning machine 19 can be received on the transition plate 7, and the transition plate 7 is pressed down by the gravity of the crankshaft 17, and the transition plate 7 rotates downward. The transition plate 7 only rotates along the cleaning machine sprocket drive shaft 18, and there is almost no radial deviation, so the crankshaft 17 can be stably received and transported to the next step. After receiving and transporting a group of crankshafts 17, the transition plate 7 returns in time through the action of the tension spring seat 8 and the tension spring 9 to receive and transport the next group of crankshafts 17. The mechanism efficiently receives and transports the crankshafts 17 that have been cleaned by the chain cleaning machine 19, and safely transports them to the next step, realizing automated transportation, saving manpower, and improving efficiency. It will not cause damage to the crankshaft 17, and the modification and installation are simple, and it will not affect the original cleaning machine 19.

[0044] In this embodiment, one end of the cleaning machine sprocket transmission shaft 18 is also axially connected to a ratchet 2, and the dial 6 is hingedly provided with a ratchet pawl 3 that can slide on the tooth surface of the ratchet 2 in the opposite direction of the rotation direction of the ratchet 2.

[0045] By adopting the technical solution, the transition plate 7 reciprocates through the bearing 12, and can only transport the crankshaft 17 from a high place to a low place, realizing one-way transportation. The ratchet 2 and the pawl 3 are added. When the ratchet 2 moves clockwise or the transition plate 7 rebounds counterclockwise, the pawl 3 slides over the tooth surface of the ratchet 2, and the ratchet 2 and the pawl 3 do not affect the transportation and rebound of the transition plate 7; on the basis of the original one-way transportation, the ratchet 2 and the pawl 3 can also be moved unidirectionally and intermittently. The ratchet 2 pushes the pawl 3 counterclockwise, and the pawl 3 drives the dial 6 to rotate, and the transition plate 7 pushes the crankshaft 17, so that the crankshaft 17 can be transported in the reverse direction alone, and the forward transportation of the bearing 12 can be cooperated to realize the bidirectional transportation of the crankshaft 17.

[0046] In this embodiment, the transition plate 7 is further provided with a baffle for receiving the crankshaft 17 . When the transition plate 7 is in an initial position, the baffle is parallel to the sprocket conveyor belt of the cleaning machine 19 .

[0047] By adopting the technical solution, the baffle plate can cooperate with the ratchet 2 to rotate in the opposite direction to transfer the single crankshaft 17 from a low position back to a high position.

[0048] In this embodiment, the dial 6 is further provided with a pawl pin 4 for hingedly connecting the pawl 3 .

[0049] By adopting the technical solution, the pawl 3 is provided with a pawl pin 4, and the pawl 3 can be adjusted by the pawl pin 4. During reverse transportation, after the transition plate 7 transfers the crankshaft 17 from a low place to a high place, the dial 6 and the transition plate 7 can be reset by adjusting the pawl pin 4 and the pawl 3, so as to carry out the reverse transportation of the next group of crankshafts 17.

[0050] In this embodiment, the cleaning machine sprocket drive shaft 18 is further provided with a sleeve 10 for connecting the inner ring of the bearing 12 and the ratchet 2 .

[0051] By adopting this technical solution, the bearing 12 and the ratchet 2 are connected to the cleaning machine sprocket drive shaft 18 through the shaft sleeve 10 to prevent the crankshaft 17 from being too heavy during transportation, causing the weight of the crankshaft 17 to press down and cause the transition plate 7 to drop rapidly, thereby causing damage to the cleaning machine 19 sprocket.

[0052] In this embodiment, the cleaning machine 19 is further provided with a stop lever 5 for limiting the initial position of the transition plate 7 .

[0053] By adopting this technical solution, the shift rod 5 prevents the transition plate 7 from rebounding and colliding with the crankshaft 17 under the action of the tension spring 9 .

[0054] In this embodiment, the bearing 12 is provided with a counterweight 1 at the end away from the dial 6 for balancing the weight of the transition plate 7 .

[0055] By adopting the technical solution, the counterweight block 1 can prevent the transition plate 7 from descending too quickly when the crankshaft 17 is being transferred, thereby causing damage to the transfer mechanism.

[0056] In this embodiment, the counterweight 1 is provided with a screw rod 15 and a nut 16 for connecting the dial 6 .

[0057] Example 2

[0058] The only difference between this embodiment and the first embodiment is that, in this embodiment, the ratchet wheel 2 is further provided with a set screw 11 for connecting with the sprocket drive shaft 18 of the cleaning machine.

[0059] By adopting the technical solution, the ratchet 2 axis is connected to the cleaning machine sprocket drive shaft 18 through the set screw 11 to prevent the two from offsetting, causing the crankshaft 17 to be unstable during the transportation process and causing a transportation accident.

[0060] In this embodiment, a hole retaining spring 13 for axially fixing the bearing 12 is provided on the inner side of the end surface of the bearing 12 , and a shaft retaining spring 14 for axially fixing the bearing 12 is provided on the outer side of the end surface of the bearing 12 .

[0061] The adoption of this technical solution ensures that the bearing 12 will not be axially offset, thereby ensuring the stability of the transfer mechanism.

[0062] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic transition mechanism for a chain crankshaft cleaning machine, characterized in that: The invention comprises a bearing (12) axially connected to both ends of a sprocket transmission shaft (18) of a cleaning machine, a dial (6) being provided on the outer ring of the bearing (12), a transition plate (7) being provided between two groups of the dials (6) for receiving and transferring a crankshaft (17), the dial (6) being provided with a tension spring seat (8) for rebounding the transition plate (7); the tension spring seat (8) being connected to one end of a tension spring (9), the other end of which is connected to the cleaning machine (19).

2. The automatic transition mechanism of a chain crankshaft cleaning machine according to claim 1, characterized in that: One end of the cleaning machine sprocket transmission shaft (18) is also axially connected to a ratchet (2), and the dial (6) is hingedly provided with a ratchet pawl (3) that can slide on the tooth surface of the ratchet (2) in the opposite direction of the rotation direction of the ratchet (2).

3. The automatic transition mechanism of a chain crankshaft cleaning machine according to claim 2, characterized in that: The transition plate (7) is also provided with a baffle (20) for receiving the crankshaft (17); when the transition plate (7) is in an initial position, the baffle (20) is parallel to the sprocket conveyor belt of the cleaning machine (19).

4. The automatic transition mechanism of a chain crankshaft cleaning machine according to claim 2 or 3, characterized in that: The dial (6) is also provided with a pawl pin (4) for hingedly connecting the pawl (3).

5. The automatic transition mechanism of a chain crankshaft cleaning machine according to claim 2 or 3, characterized in that: The cleaning machine sprocket drive shaft (18) is also provided with a shaft sleeve (10) for connecting the inner ring of the bearing (12) and the ratchet (2).

6. The automatic transition mechanism of a chain crankshaft cleaning machine according to claim 2 or 3, characterized in that: The ratchet wheel (2) is also provided with a set screw (11) for connecting with the sprocket drive shaft (18) of the cleaning machine.

7. An automatic transition mechanism for a chain crankshaft cleaning machine according to any one of claims 1 to 3, characterized in that: The cleaning machine (19) is also provided with a stop lever (5) for limiting the initial position of the transition plate (7).

8. An automatic transition mechanism for a chain crankshaft cleaning machine according to any one of claims 1 to 3, characterized in that: The bearing (12) is provided with a counterweight (1) at one end away from the dial (6) for balancing the weight of the transition plate (7).

9. The automatic transition mechanism of a chain crankshaft cleaning machine according to claim 8, characterized in that: The counterweight (1) is provided with a screw rod (15) and a nut (16) for connecting the dial (6).

10. An automatic transition mechanism for a chain crankshaft cleaning machine according to any one of claims 1 to 3 and 9, characterized in that: A hole retaining spring (13) for axially fixing the bearing (12) is provided on the inner side of the end surface of the bearing (12), and a shaft retaining spring (14) for axially fixing the bearing (12) is provided on the outer side of the end surface of the bearing (12).

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