A pair of lapping devices suitable for use with a marine breather valve

Abstract

A kind of pair of research device suitable for ship breathing valve, including base mechanism, connecting piece, drive mechanism arranged on base mechanism, transmission mechanism, tappet mechanism and transverse adjustment mechanism;The connecting piece is arranged on tappet mechanism;The drive mechanism is connected with transmission mechanism;The tappet mechanism is arranged on transverse adjustment mechanism, and tappet mechanism is in contact with transmission mechanism;The base mechanism includes bottom plate, top plate and support;The bottom plate is set on ground, and the four corners of the upper end surface of bottom plate are vertically provided with support, and the lower end surface of top plate is connected with the upper end of support;The transmission mechanism includes shaft, bearing seat piece, first wheel group and second wheel group;The both ends of the shaft are arranged on the upper end surface of bottom plate by bearing seat piece, and one end of the shaft is connected with drive mechanism;The first wheel group and the second wheel group are respectively arranged at both ends of the shaft.The pair of research device for breathing valve improves the efficiency of sealing surface, and reduces the labor intensity of staff.

Description

Technical Field

[0001] This invention relates to a grinding device suitable for ship breather valves, and more particularly to a device for grinding the mating surfaces of the breather valve and the valve seat, belonging to the field of grinding processing technology. Background Technology

[0002] In the cargo oil tanks of tankers, breather valves are essential equipment in the venting system. Their function is to ensure that the pressure difference between the cargo oil tank and the outside atmospheric pressure is controlled within a safe range, preventing damage or deformation to the tank walls and deck due to excessive pressure differences. They also prevent oil and gas from escaping unrestricted from normally open pipes and ensure that discharged oil and gas can safely reach the atmosphere, preventing combustion and explosion. Therefore, the sealing performance of the breather valve determines the safe operation of the ship. The breather valve consists of an exhalation valve, an inhalation valve, and a valve seat. The valve's sealing surface is the most vulnerable part. During opening or closing, it is subjected to impact loads, stress, deformation, etc., causing relative displacement between the valve and seat contact surfaces. Defects such as cracks, wear, and protrusions on the contact surfaces affect the sealing performance. Therefore, during breather valve maintenance, grinding of the valve and seat contact surfaces is crucial. Alignment is a grinding operation that involves a large workload, is time-consuming, and requires high quality. Common grinding methods include friction grinding and impact grinding. Impact grinding refers to the mutual impact between the contact surfaces of the valve and the valve seat to achieve flush mating and improve sealing. In practice, this grinding method is usually done manually, using tools such as steel rollers to leverage the valve and valve seat to impact each other. However, this impact method results in uneven force, affecting the grinding effect. Furthermore, manual grinding cannot guarantee that the valve mating surfaces are parallel when impacting the valve seat, further exacerbating the uneven force. Moreover, manual operation of the valve impacting the valve seat is labor-intensive and inefficient. Therefore, a grinding device is needed that can automatically control the impact of the valve mating surfaces on the valve seat, thereby improving grinding accuracy and reducing the labor intensity of workers. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a grinding device suitable for ship breather valves, which can not only reduce the labor intensity of workers, but also improve the grinding accuracy of mating surfaces.

[0004] The problem described in this invention is solved by the following technical solution:

[0005] A reaming device for a ship's breather valve includes a base mechanism, a connecting member, a drive mechanism, a transmission mechanism, a tapping rod mechanism, and a lateral adjustment mechanism mounted on the base mechanism. The connecting member is mounted on the tapping rod mechanism. The drive mechanism is connected to the transmission mechanism. The tapping rod mechanism is mounted on the lateral adjustment mechanism and contacts the transmission mechanism. The base mechanism includes a base plate, a top plate, and support columns. The base plate is placed on the ground, and support columns are vertically mounted at the four corners of the upper surface of the base plate. The lower surface of the top plate is connected to the upper end of the support columns. The transmission mechanism includes a rotating shaft, bearing seats, a first wheel set, and a second wheel set. Both ends of the rotating shaft are mounted on the upper surface of the base plate via bearing seats, and one end of the rotating shaft is connected to the drive mechanism. The first wheel set and the second wheel set are respectively mounted at both ends of the rotating shaft.

[0006] The above-mentioned grinding device for ship breathing valves has a first groove and a second groove respectively provided at both ends of the outer wall of the rotating shaft, and the center lines of the first groove and the second groove are parallel to the axis of the rotating shaft; the first wheel set includes a first cam and a second cam; the center of the first cam and the second cam are provided with through holes, and the first cam and the second cam are both sleeved on the outer wall of the rotating shaft, and the inner walls of the inner holes of the first cam and the second cam are provided with protruding keys, which are inserted into the first groove; the first cam and the second cam are both fixed to the rotating shaft by positioning bolts.

[0007] The above-mentioned grinding device applicable to ship breathing valves includes a second wheel set comprising a third cam and a fourth cam; both the third cam and the fourth cam have a through hole in their center, and both the third cam and the fourth cam are sleeved on the outer wall of the rotating shaft. Both the inner walls of the third cam and the fourth cam have protruding keys, which are inserted into the second slot; both the third cam and the fourth cam are fixed to the rotating shaft by positioning bolts.

[0008] The above-mentioned grinding device for ship breathing valves includes a first sliding member and a second sliding member, and the first sliding member and the second sliding member have the same structure. The first sliding member and the second sliding member are both located on the upper end face of the top plate, and the first sliding member is located directly above the first wheel assembly, and the second sliding member is located directly above the second wheel assembly. The center of the top plate is provided with a first strip-shaped hole along the axis of rotation, and the first strip-shaped hole connects the upper end face and the lower end face of the top plate. The top plate is provided with two second strip-shaped holes, and the two second strip-shaped holes are symmetrical about the first strip-shaped hole, and the center line of the second strip-shaped hole is parallel to the center line of the first strip-shaped hole.

[0009] The above-mentioned rubbing device for ship breather valves includes a first sliding block comprising a sliding block, a vertical sliding sleeve, and a guide plate. The sliding block is disposed on the upper end face of the top plate, and a through-hole is provided in the vertical direction at the center of the sliding block, the through-hole being directly above the first strip-shaped hole. Fastening bolts are provided at the four corners of the sliding block, the fastening bolts passing through the second strip-shaped hole, and the fastening bolts fixing the sliding block to the top plate. The vertical sliding sleeve is disposed at the center of the upper end face of the sliding block, and the axis of the vertical sliding sleeve intersects with the center of the through-hole of the sliding block. The guide plate is disposed on the upper end of the outer wall of the vertical sliding sleeve, and a through-hole is provided in the vertical direction.

[0010] The above-mentioned grinding device for ship breather valves includes a push rod mechanism comprising a guide rod, a push rod, a roller, and a boom; the push rod is inserted into a vertical sliding sleeve; the roller is located on the lower end face of the push rod; the boom and the guide rod are both located at the top of the push rod, and the guide rod is inserted into the guide rod hole of the guide plate.

[0011] The above-mentioned grinding device for ship breather valves includes a drive mechanism comprising a motor and a reducer; the housings of the motor and the reducer are both located on the upper surface of the base plate; the output shaft of the motor is connected to the input shaft of the reducer; and the output shaft of the reducer is connected to one end of a rotating shaft.

[0012] The above-mentioned grinding device applicable to ship breathing valves has the following characteristics: the first cam and the third cam have the same shape, and the second cam and the fourth cam have the same shape; the base circle radius of the first cam is R1, and the maximum distance between the outer edge of the first cam and the central axis of the first cam is H1, H1-R1=50mm; the base circle radius of the second cam is R2, and the maximum distance between the outer edge of the second cam and the central axis of the second cam is H2, H2-R2=70.

[0013] The above-mentioned grinding device applicable to ship breather valves has a rotation angle of 180 degrees between the first cam and the third cam; and a rotation angle of 180 degrees between the second cam and the fourth cam.

[0014] The above-mentioned grinding device for ship breather valves includes a first hinge, a second hinge, a straightening rod, and a straightening sleeve. The straightening sleeve is connected to the slide block via a bracket, and the axis of the straightening sleeve is a vertical line. The upper end of the first hinge is connected to the end of the boom away from the tappet, and the lower end of the first hinge is connected to the upper end of the straightening rod. The straightening rod is inserted into the straightening sleeve, and the lower end of the straightening rod is connected to the upper end of the second hinge.

[0015] This invention, through the cooperation of a transmission mechanism, a push rod mechanism, and connecting parts, causes the exhalation and inhalation valves to continuously impact the valve seat. This high-intensity impact on the sealing surface enhances its sealing performance. The drive mechanism rotates the transmission mechanism, causing the push rod mechanism to repeatedly rise and fall, replacing the previous manual operation of driving the breather valve to impact the valve seat. This significantly reduces the labor intensity of workers and improves grinding efficiency. The transmission mechanism is adjustable, allowing for adjustments to the vertical rise and fall amplitude of the push rod mechanism, adapting to grinding operations on different types of breather valves and improving grinding flexibility. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention in use.

[0017] Figure 2 This is a schematic diagram of the first three-dimensional structure of the present invention with the connector removed;

[0018] Figure 3 This is a schematic diagram of the second three-dimensional structure of the present invention with the connector removed;

[0019] Figure 4 This is a cross-sectional view of the transmission mechanism of the present invention;

[0020] Figure 5 This is a cross-sectional view of the pushrod mechanism of the present invention.

[0021] The list of labels in the diagram is as follows: 1. Base plate, 2. Top plate, 3. Support column, 4. Shaft, 5. Bearing seat, 6. First wheel assembly, 7. Second wheel assembly, 8. Slide block, 9. Vertical sliding sleeve, 10. Guide plate, 11. Guide rod, 12. Taper, 13. Roller, 14. Boom, 15. Connector, 15-1. First hinge, 15-2. Second hinge, 15-3. Correcting sleeve, 16. Drive mechanism. Detailed Implementation

[0022] See Figure 1 , 2 3, 4 and Figure 5 The present invention includes a base mechanism, a drive mechanism 16, a transmission mechanism, a push rod mechanism, and a lateral adjustment mechanism, wherein the connecting member 15 is disposed on the base mechanism; the drive mechanism 16 is connected to the transmission mechanism; the drive mechanism 16 drives the transmission mechanism to rotate; the push rod mechanism is disposed on the lateral adjustment mechanism and is in contact with the transmission mechanism; the lateral adjustment mechanism can adjust the position of the push rod mechanism in the horizontal direction; the transmission mechanism drives the push rod mechanism to move in the vertical direction.

[0023] The base mechanism includes a base plate 1, a top plate 2, and support columns 3. The base plate 1 is placed on the ground, and support columns 3 are vertically arranged at the four corners of the upper surface of the base plate 1. The lower surface of the top plate 2 is connected to the upper end of the support columns 3. The transmission mechanism includes a rotating shaft 4, bearing seats 5, a first wheel set 6, and a second wheel set 7. Both ends of the rotating shaft 4 are set on the upper surface of the base plate 1 through bearing seats 5, and one end of the rotating shaft 4 is connected to the drive mechanism 16. The rotating shaft 4 rotates in place, and the power source for the rotation of the rotating shaft 4 comes from the drive mechanism 16. The first wheel set 6 and the second wheel set 7 are respectively arranged at both ends of the rotating shaft 4.

[0024] The outer wall of the rotating shaft 4 is provided with a first slot and a second slot at both ends, and the center lines of the first slot and the second slot are parallel to the axis of the rotating shaft 4. A first wheel set 6 is provided at the first slot, and a second wheel set 7 is provided at the second slot. The first wheel set 6 includes a first cam and a second cam. The center of the first cam and the second cam are provided with through holes, and the first cam and the second cam are both sleeved on the outer wall of the rotating shaft 4. The inner walls of the inner holes of the first cam and the second cam are provided with protruding keys, which are inserted into the first slot. Through the engagement of the protruding keys and the slots, each cam can rotate synchronously with the rotating shaft 4 when the rotating shaft 4 rotates. The function of the slots is to allow the cams to adjust their positions along the axis of the rotating shaft 4. After the cams are adjusted to their positions, the positioning bolts fix the cams to the rotating shaft 4. The first cam and the second cam are both fixed to the rotating shaft 4 by positioning bolts.

[0025] The second wheel set 7 includes a third cam and a fourth cam; both the third cam and the fourth cam have a through hole in their center, and both the third cam and the fourth cam are sleeved on the outer wall of the rotating shaft 4. Both the inner walls of the third cam and the fourth cam have protruding keys, and the protruding keys on the inner walls of the third cam and the fourth cam are inserted into the second slot; both the third cam and the fourth cam are fixed to the rotating shaft 4 by positioning bolts.

[0026] The lateral adjustment mechanism includes a first slide and a second slide, and the first slide and the second slide have the same structure. The first slide and the second slide are both located on the upper surface of the top plate 2, and the first slide is located directly above the first wheel assembly 6, and the second slide is located directly above the second wheel assembly 7. The center of the top plate 2 is provided with a first strip-shaped hole along the axis of the rotating shaft 4, and the first strip-shaped hole connects the upper surface and the lower surface of the top plate 2. The top plate 2 is provided with two second strip-shaped holes, and the two second strip-shaped holes are symmetrical about the first strip-shaped hole, and the center line of the second strip-shaped hole is parallel to the center line of the first strip-shaped hole.

[0027] The first slide block includes a slide block 8, a vertical slide sleeve 9, and a guide plate 10. The slide block 8 is disposed on the upper end face of the top plate 2, and a through-hole is provided in the vertical direction at the center of the slide block 8. The through-hole of the slide block 8 is located directly above the first strip-shaped hole. Fastening bolts are provided at the four corners of the slide block 8. The fastening bolts pass through the second strip-shaped hole and fix the slide block 8 to the top plate 2. The slide block 8 can move along the center line of the first strip-shaped hole on the upper end face of the top plate 2. After the slide block 8 is positioned, it is fixed by the fastening bolts. The vertical slide sleeve 9 is disposed at the center of the upper end face of the slide block 8, and the axis of the vertical slide sleeve 9 intersects with the center of the through-hole of the slide block 8. The guide plate 10 is disposed on the upper end of the outer wall of the vertical slide sleeve 9, and a through-hole is provided in the vertical direction.

[0028] The push rod mechanism includes a guide rod 11, a push rod 12, a roller 13, and a boom 14. The push rod 12 passes through a vertical sliding sleeve 9 and slides vertically within the sleeve. The roller 13 is located on the lower end face of the push rod 12 and contacts the outer edge of a cam. The rotation of the cam causes the roller 13 to move vertically, thereby causing the push rod 12 to move vertically as well. The boom 14 and the guide rod 11 are both located at the top of the push rod 12. The guide rod 11 is inserted into the guide rod hole of the guide plate 10. The guide rod 11 ensures that the push rod 12 moves only vertically and does not rotate, thus preventing the push rod 12 from rotating.

[0029] The drive mechanism 16 includes a motor and a reducer; the housings of the motor and the reducer are both located on the upper surface of the base plate 1; the output shaft of the motor is connected to the input shaft of the reducer; and the output shaft of the reducer is connected to one end of the rotating shaft 4.

[0030] The first cam and the third cam have the same shape, and the second cam and the fourth cam have the same shape. The base circle radius of the first cam is R1, and the maximum distance between the outer edge of the first cam and the central axis of the first cam is H1, H1-R1=50mm. The base circle radius of the second cam is R2, and the maximum distance between the outer edge of the second cam and the central axis of the second cam is H2, H2-R2=70. Different cam sizes can provide different lifting amounts for the push rod 12. Compared with the first cam, the second cam can provide a greater lifting height for the push rod 12, so that the breather valve can strike the valve seat from a higher position. Different cam sizes correspond to different grinding forces.

[0031] The rotation angles of the first cam and the third cam differ by 180 degrees; the rotation angles of the second cam and the fourth cam differ by 180 degrees. The purpose of the 180-degree difference in rotation angles between the first and third cams is that, since there are two tappets, one acting on the exhale valve and the other on the inhale valve, to avoid both tappets being at their highest points simultaneously, it is necessary to ensure that when one tappet is at its highest point, the other tappet is at its lowest point. In this way, when the rotating shaft 4 provides rotational kinetic energy to the cam, the force provided by the rotating shaft 4 can be concentrated on a single tappet, and the two tappets lift alternately, reducing the instantaneous load on the drive mechanism 16.

[0032] The connecting component 15 includes a first hinge 15-1, a second hinge 15-2, a straightening rod, and a straightening sleeve 15-3. The straightening sleeve 15-3 is connected to the slide block 8 via a bracket. When the slide block 8 moves on the top plate 2, the slide block 8 moves together with the top plate 2. The axis of the straightening sleeve 15-3 is a vertical line. The straightening rod is inserted into the straightening sleeve 15-3 and moves vertically within it. The function of the straightening sleeve 15-3 is to ensure that the straightening rod moves vertically without deviation. The upper end of the first hinge 15-1 is connected to the end of the boom 14 away from the strut 12, and the lower end of the first hinge 15-1 is connected to the upper end of the straightening rod. The lower end of the straightening rod is connected to the upper end of the second hinge 15-2. The lower end of the second hinge 15-2 is connected to the breather valve. The connecting component 15 is provided because the boom 14 and the strut 12... When one end of the connection moves vertically, the end of the boom 14 connected to the first hinge 15-1 is subjected to a downward pulling force, causing slight stress deformation of the boom 14 during lifting and lowering. If the boom 14 and the breathing valve are connected by only a single connecting rope, the breathing valve will not be vertical due to the tension of the connecting rope, and the exhalation or inhalation valve will be subjected to lateral force, resulting in excessive friction between the outer wall of the breathing valve and the inner wall of the valve seat, affecting the service life of the breathing valve. After the force of the first hinge 15-1 is transmitted to the straightening rod, the straightening rod is then transmitted to the second hinge 15-2. Because the straightening rod is restricted to vertical movement by the straightening sleeve 15-3, this ensures that the movement direction of the second hinge 15-2 can only be vertical, ensuring that the breathing valve is lifted and lowered vertically without being subjected to lateral force. The effect caused by the deflection of the first hinge 15-1 is eliminated through the cooperation of the straightening rod and the straightening sleeve 15-3.

[0033] Actual usage process: Adjust the positions of the first and second slide members to align them with their corresponding valve heads, and then use fastening bolts to fix the first and second slide members to the top plate 2; connect the two second hinges 15-2 to the valve heads of the exhalation valve and the inhalation valve respectively; then, according to the size of the breathing valve and the grinding requirements, select a suitable cam, adjust the positions of the first wheel group 6 and the second wheel group 7 so that the outer edge of the selected cam in each wheel group contacts the roller 13 directly above it; after adjusting the positions of the first wheel group 6 and the second wheel group 7, use positioning bolts to fix them to the rotating shaft 4; start the drive mechanism 16, the rotating shaft 4 rotates, driving the cam to rotate, the cam drives the push rod 12 to move back and forth in the vertical direction, the two push rods 12 alternately lift, driving the exhalation valve and the inhalation valve to the highest point and then fall to hit the valve seat sealing surface, achieving the effect of mutual grinding through continuous lifting and impact.

Claims

1. A grinding device suitable for ship breather valves, characterized in that: The system includes a base mechanism, a connector (15), a drive mechanism (16) mounted on the base mechanism, a transmission mechanism, a push rod mechanism, and a lateral adjustment mechanism; the connector (15) is mounted on the push rod mechanism; the drive mechanism (16) is connected to the transmission mechanism; the push rod mechanism is mounted on the lateral adjustment mechanism and is in contact with the transmission mechanism; the base mechanism includes a base plate (1), a top plate (2), and support columns (3); the base plate (1) is mounted on the ground, and support columns (3) are vertically mounted at the four corners of the upper surface of the base plate (1); the top plate (2)... The lower end face of the shaft (4) is connected to the upper end of the support column (3); the transmission mechanism includes a rotating shaft (4), a bearing seat (5), a first wheel group (6) and a second wheel group (7); the first wheel group (6) includes a first cam and a second cam; the second wheel group (7) includes a third cam and a fourth cam; both ends of the rotating shaft (4) are set on the upper end face of the base plate (1) through the bearing seat (5), and one end of the rotating shaft (4) is connected to the drive mechanism (16); the first wheel group (6) and the second wheel group (7) are respectively set at both ends of the rotating shaft (4); The lateral adjustment mechanism includes a first slide and a second slide, and the first slide and the second slide have the same structure. The first slide and the second slide are both set on the upper end face of the top plate (2), and the first slide is located directly above the first wheel assembly (6), and the second slide is located directly above the second wheel assembly (7). The center of the top plate (2) is provided with a first strip hole along the axis of the rotating shaft (4), and the first strip hole connects the upper end face and the lower end face of the top plate (2). The top plate (2) is provided with two second strip holes, and the two second strip holes are symmetrical about the first strip hole, and the center line of the second strip hole is parallel to the center line of the first strip hole. The first slide block includes a slide block (8), a vertical slide sleeve (9), and a guide plate (10); the slide block (8) is disposed on the upper end face of the top plate (2), and a through rod hole is provided in the vertical direction at the center position of the slide block (8), and the through rod hole of the slide block (8) is located directly above the first strip hole; fastening bolts are provided at the four corners of the slide block (8), the fastening bolts pass through the second strip hole, and the fastening bolts fix the slide block (8) on the top plate (2); the vertical slide sleeve (9) is disposed in the center position of the upper end face of the slide block (8), and the guide plate (10) is disposed at the upper end of the outer wall of the vertical slide sleeve (9), and a through guide rod hole is provided in the vertical direction of the guide plate (10); The push rod mechanism includes a guide rod (11), a push rod (12), a roller (13), and a boom (14); the push rod (12) is inserted into a vertical sliding sleeve (9); the roller (13) is located on the lower end face of the push rod (12); the boom (14) and the guide rod (11) are both located at the top of the push rod (12), and the guide rod (11) is inserted into the guide rod hole of the guide plate (10).

2. The rubbing device for ship breather valves according to claim 1, characterized in that: The outer walls of the rotating shaft (4) are respectively provided with a first slot and a second slot, and the center lines of the first slot and the second slot are parallel to the axis of the rotating shaft (4); the center of the first cam and the second cam are both provided with through holes, and the first cam and the second cam are both sleeved on the outer wall of the rotating shaft (4). The inner walls of the through holes of the first cam and the second cam are both provided with protruding keys, and the protruding keys on the inner walls of the through holes of the first cam and the second cam are inserted into the first slot; the first cam and the second cam are both fixed on the rotating shaft (4) by positioning bolts.

3. The lap joint device for ship breather valves according to claim 2, characterized in that: The third cam and the fourth cam are both provided with a through hole in the center, and the third cam and the fourth cam are both sleeved on the outer wall of the rotating shaft (4). The inner wall of the through hole of the third cam and the fourth cam is provided with a protruding key. The protruding key on the inner wall of the through hole of the third cam and the fourth cam is inserted into the second slot. The third cam and the fourth cam are both fixed on the rotating shaft (4) by positioning bolts.

4. The lap joint device for ship breather valves according to claim 3, characterized in that: The drive mechanism (16) includes a motor and a reducer; the housings of the motor and the reducer are both located on the upper surface of the base plate (1); the output shaft of the motor is connected to the input shaft of the reducer; the output shaft of the reducer is connected to one end of the rotating shaft (4).

5. The lap joint device for ship breather valves according to claim 4, characterized in that: The first cam and the third cam have the same shape, and the second cam and the fourth cam have the same shape; the base circle radius of the first cam is R1, and the maximum distance between the outer edge of the first cam and the central axis of the first cam is H1, H1-R1=50mm; the base circle radius of the second cam is R2, and the maximum distance between the outer edge of the second cam and the central axis of the second cam is H2, H2-R2=70mm.

6. The lap joint device for ship breather valves according to claim 5, characterized in that: The rotation angle of the first cam differs from that of the third cam by 180 degrees; the rotation angle of the second cam differs from that of the fourth cam by 180 degrees.

7. The lap joint device for ship breather valves according to claim 6, characterized in that: The connector (15) includes a first hinge (15-1), a second hinge (15-2), a straightening rod, and a straightening sleeve (15-3); the straightening sleeve (15-3) is connected to the slide (8) through a bracket, and the axis of the straightening sleeve (15-3) is a vertical line; the upper end of the first hinge (15-1) is connected to the end of the boom (14) away from the push rod (12), the lower end of the first hinge (15-1) is connected to the upper end of the straightening rod, the straightening rod is inserted into the straightening sleeve (15-3), and the lower end of the straightening rod is connected to the upper end of the second hinge (15-2).

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