Movable protection device and method for finishing and cleaning operation of marine diesel engine base

Abstract

According to the movable protection device and method for finishing and cleaning operation of the marine diesel engine base, an oil groove or a boss is formed along the edge, oil leakage holes are formed in the positions, close to the two ends of the oil groove or the boss, of the upper plane of the base, and limiting plugs used for limiting the sliding range of the movable protection device are installed in the oil leakage holes; the movable protection device is installed on the edge of the machine base and comprises a device body and a limiting positioning plate. The limiting positioning plate is hung in the oil groove or the boss and can slide along the edge of the machine base. The device body is connected with the limiting and positioning plate, is used for throwing and hanging a safety belt, abuts against the upper plane and the side face of the machine base and can roll on the upper plane and the side face; a safety belt is hung on the movable protection device in a throwing mode, an operator is connected to the safety belt to conduct finishing cleaning work on the machine base, and the working area is changed along with sliding of the movable protection device. The safety risk of finishing and cleaning work of the machine base is reduced, the working efficiency is improved, and the beneficial effects of being high in safety and wide in application range are achieved.

Description

Technical Field

[0001] The invention relates to cleaning and protection of large low-speed marine diesel engine parts, in particular to a movable protection device and method for finishing and cleaning a marine diesel engine base, belonging to the technical field of diesel engine manufacturing and processing. Background Art

[0002] The engine base is an important part of a large low-speed marine diesel engine. After the engine base is processed, it is necessary to perform finishing and oiling on the upper plane and the periphery of the engine base. Since the engine base of a large low-speed marine diesel engine is relatively high, when performing finishing and oiling on the upper plane and the periphery of the engine base, the working height of the operators is generally more than 2 meters, and due to the shape of the diesel engine base, there is no place to throw the safety belt around the engine base, which brings great difficulties to the safety protection during high-altitude operations. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a movable protective device and method for finishing and cleaning operations of the engine base of a marine diesel engine. The movable protective device is installed by utilizing the oil groove, oil leakage hole, boss and other structures on the engine base. When the engine base is subjected to finishing and cleaning operations, it is convenient for operators to throw on safety belts, thereby achieving the effects of reducing the risk of climbing, improving the working environment and increasing production efficiency.

[0004] The present invention adopts the following technical solutions to solve the technical problems:

[0005] A movable protective device for finishing and cleaning operations of a marine diesel engine base, installed on the edge of the base, with an oil groove or a boss along the edge, and oil leakage holes are provided at both ends of the upper plane of the base close to the oil groove or the boss, and the oil leakage holes are installed with stop plugs for limiting the sliding range of the movable protective device; the characteristic is that: the movable protective device comprises a device body and a limiting positioning plate; the limiting positioning plate is suspended in the oil groove or on the boss and can slide along the edge of the base; the device body is connected to the limiting positioning plate and is used to throw a safety belt, the device body abuts against the upper plane and side of the base and can roll on the upper plane and side of the base with the sliding of the limiting positioning plate;

[0006] A safety belt is thrown onto the movable protective device, and an operator connected to the safety belt performs finishing and cleaning work on the machine base, and changes the working area as the movable protective device slides.

[0007] Furthermore, the limiting positioning plate includes a supporting plate, a detachable positioning key and a side plate; the supporting plate is horizontally arranged, a threaded hole for connecting the device body is provided in the middle, and waist-shaped holes for connecting the side plates are provided on both sides, the positioning key is a curved hook-shaped component with the hook claw facing downward, the two positioning keys are fixed on the rear side surface of the supporting plate on both sides of the threaded hole and the hook claw extends into the oil groove of the machine base or is hooked on the boss to hang the limiting positioning plate on the edge of the machine base; the two side plates are vertically connected to the two sides of the supporting plate by bolts and the waist-shaped holes, and the position can be adjusted up and down.

[0008] Furthermore, the lower part of the side plate is connected with a limiting bolt.

[0009] Furthermore, the size of the positioning key is determined according to the base of different models and can be replaced.

[0010] Further, the device body comprises a base plate, a lifting lug, a side roller, an upper roller, a hand wheel, a distance tube, a spring and an adjusting bolt;

[0011] The base plate is vertically arranged, and two horizontally arranged through holes are provided on the upper part. The hanging ear is fixed to the lower part of the front side of the base plate for hanging the safety belt. The two side roller axes are vertically fixed to the lower part of the reverse side of the base plate, abutting against the side of the machine base and rolling on the side. The two adjusting bolts pass through the through holes of the base plate respectively and are screwed into the threaded holes of the support plate of the limiting positioning plate to connect the device body with the limiting positioning plate. The upper roller is connected to the end of the adjusting bolt on the reverse side of the support plate through a nut. The upper roller contacts the upper plane of the base and rolls on the upper plane, the distance tube is passed through the adjusting bolt and is located between the upper roller and the support plate, the spring is passed through the adjusting bolt and is located between the base plate and the support plate, the handwheel is fixedly connected to the end of the adjusting bolt close to the front side of the base plate and abuts against the base plate, the handwheel and the adjusting bolt are rotated and the spring is compressed at the same time to adjust the distance between the base plate and the support plate, so that the side roller contacts the side of the base and rolls on the side.

[0012] Another technical solution of the present invention is:

[0013] A protective method for finishing and cleaning a marine diesel engine base using the above device comprises the following steps:

[0014] 1) A stopper protruding from the upper plane of the base is installed in the oil leakage hole to limit the moving range of the movable protective device;

[0015] 2) inserting the hook of the positioning key into the oil groove of the machine base or hooking it on the boss, so that the upper roller contacts the upper plane of the machine base, thereby installing the movable protective device on the edge of the machine base;

[0016] 3) Rotate the hand wheel to compress the spring, adjust the distance between the base plate and the support plate by the adjusting bolt, make the side roller contact the side of the machine base and roll on the side, then adjust the height of the side plate, and tighten the limit bolt;

[0017] 4) Hang the safety belt on the lifting lug, perform finishing and cleaning work on the machine base, and move the protective device as the working area changes.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1) The present invention makes full use of the oil groove, oil leakage hole, boss and other structures on the machine base, and installs a movable protective device that can be hung with a safety belt, thereby ensuring the safety of personnel performing finishing and cleaning operations on the machine base and improving working conditions.

[0020] 2) The protective device of the present invention has upper rollers and side rollers, and the protective device can be moved along with the movement of the workers, thereby facilitating the operation and improving the production efficiency.

[0021] 3) The protective device of the present invention can replace the corresponding upper roller and positioning key according to different machine models, and has good versatility.

[0022] In short, the present invention greatly reduces the risk of climbing during the finishing and cleaning work of the machine base, improves the working efficiency, and has the advantages of quick operation, easy use, strong safety, and a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is one of the structural diagrams of the base.

[0024] Figure 2 This is the second structural diagram of the machine base.

[0025] Figure 3 It is one of the structural schematic diagrams of the protective device of the present invention.

[0026] Figure 4 This is the second structural schematic diagram of the protective device of the present invention.

[0027] Figure 5 It is one of the structural schematic diagrams of the limiting positioning plate.

[0028] Figure 6 This is the second structural diagram of the limiting positioning plate.

[0029] Figure 7 It is one of the structural diagrams of the device body.

[0030] Figure 8 This is the second schematic diagram of the structure of the device body.

[0031] Fig. 9 It is a usage state diagram of the present invention.

[0032] In the figure:

[0033] 1—protective device, 2—machine base, 2.1—oil leakage hole, 2.2—oil groove, 2.3—boss, 4—device body, 4.1—side roller, 4.2—lifting ear, 4.3—handwheel, 4.4—upper roller, 4.5—spacer tube, 4.6—spring, 4.7—adjusting bolt, 4.8—base plate, 5—limiting positioning plate, 5.1—support plate, 5.2—side plate, 5.3—positioning key, 5.4—limiting bolt. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and specific examples.

[0035] The invention is used for finishing and cleaning of a marine diesel engine base.

[0036] There are two common types of engine bases 2 for marine diesel engines: one with two oil grooves 2.2 and four oil leakage holes 2.1 on both sides of the upper plane. Figure 1 , another type has two bosses 2.3 and four oil leakage holes 2.1 on both sides of the upper plane. During finishing and cleaning operations, the base 2 is generally placed with the upper plane facing upward. Before installing the movable protective device 1 of the present invention, it is necessary to install a stopper in the oil leakage hole 2.1 to limit the sliding area of ​​the movable protective device 1.

[0037] Please refer to Figure 3 and Figure 4 The movable protective device 1 is installed on the edge of the machine base 2, and includes a device body 4 and a limiting positioning plate 5. The limiting positioning plate 5 is suspended in the oil tank 2.2 or on the boss 2.3 and can slide along the edge of the machine base 2; the device body 4 is connected to the limiting positioning plate 5 and is used to hang a safety belt. The device body 4 is against the upper plane and side of the machine base 2 and can roll on the upper plane and side of the machine base 2 as the limiting positioning plate 5 slides. The safety belt is hung on the movable protective device, and the operator is connected to the safety belt to perform finishing and cleaning work on the machine base 2, and the working area is changed as the movable protective device 1 slides.

[0038] Please refer to Figure 5 and Figure 6The limiting positioning plate 5 includes a support plate 5.1, a detachable positioning key 5.3 and a side plate 5.2.

[0039] The support plate 5.1 is arranged horizontally, and a threaded hole for connecting the device body 4 is provided in the middle part, and waist-shaped holes for connecting the side plates 5.2 are provided on both sides. The positioning key 5.3 is a hook-shaped component with the hook claw facing downward. The two positioning keys 5.3 are fixed on the rear side surface of the support plate 5.1 on both sides of the threaded hole, and the hook claw extends into the oil groove 2.2 of the machine base 2 or hooks on the boss 2.3 to hang the limiting positioning plate 5 on the edge of the machine base 2. The size of the positioning key 5.3 is determined according to the machine base 2 of different models and can be replaced; the two side plates 5.2 are vertically connected to the two sides of the support plate 5.1 by bolts and the waist-shaped holes, and can be adjusted up and down. The lower part of the side plate 5.2 is connected to the limiting bolt 5.4.

[0040] Please refer to Figure 7 and Figure 8 The device body 4 comprises a base plate 4.8, a lifting lug 4.2, a side roller 4.1, an upper roller 4.4, a hand wheel 4.3, a distance tube 4.5, a spring 4.6 and an adjusting bolt 4.7.

[0041] The base plate 4.8 is vertically arranged, and two through holes are arranged horizontally on the upper part. The hanging ear 4.2 is fixed to the lower part of the front side of the base plate 4.8, and is used to hang the safety belt. The two side rollers 4.1 are vertically fixed to the lower part of the reverse side of the base plate 4.8, and at the same time, they abut against the side of the base 2 and roll on the side. The two adjusting bolts 4.7 respectively pass through the through holes of the base plate 4.8 and are screwed into the threaded holes of the support plate 5.1 of the limiting positioning plate 5, so as to connect the device body 4 with the limiting positioning plate 5. The upper roller 4.4 is connected to the end of the adjusting bolt 4.7 on the reverse side of the support plate 5.1 through a nut, and the upper roller 4.4 contacts the upper plane of the base 2 and rolls on the upper plane. The spacing tube 4.5 is passed through the adjusting bolt 4.7 and is located between the upper roller 4.4 and the support plate 5.1. The spring 4.6 is inserted into the adjusting bolt 4.7 and is located between the base plate 4.8 and the support plate 5.1. The hand wheel 4.3 is fixedly connected to the end of the adjusting bolt 4.7 near the front of the base plate 4.8 and abuts against the base plate 4.8. The hand wheel 4.3 and the adjusting bolt 4.7 are rotated to compress the spring 4.6 to adjust the distance between the base plate 4.8 and the support plate 5.1, so that the side roller 4.1 contacts the side of the base 2 and rolls on the side.

[0042] The following takes the first type of engine base as an example to illustrate the protection method used for finishing and cleaning operations of the engine base of a marine diesel engine.

[0043] Please refer to Figure 3 , Figure 4 and Fig. 9 , the protection method comprises the following steps:

[0044] 1) A stopper protruding from the upper plane of the base 2 is installed in the oil leakage hole 2.1 to limit the moving range of the movable protective device 1;

[0045] 2) inserting the hook of the positioning key 5.3 into the oil groove 2.2 of the machine base 2, so that the upper roller 4.4 contacts the upper plane of the machine base 2, thereby installing the movable protection device 1 on the edge of the machine base 2;

[0046] 3) Rotate the hand wheel 4.3 to compress the spring 4.6, adjust the distance between the base plate 4.8 and the support plate 5.1 by the adjusting bolt 4.7, make the side roller 4.1 contact the side of the base 2 and roll on the side, then adjust the height of the side plate 5.2, and tighten the limit bolt 5.4;

[0047] 4) Hang the safety belt on the lifting lug 4.2, perform finishing and cleaning of the machine base 2, and move the protective device 1 as the working area changes.

[0048] The present invention solves the problem that the safety belt cannot be thrown during the finishing and cleaning of the machine base, greatly reduces the danger of the finishing and cleaning of the machine base, makes the operation safer, eliminates potential safety hazards, reduces labor intensity, and improves production efficiency. The present invention can be applied to the safety protection of the finishing and cleaning of the machine base of different models.

[0049] The protection scope required by the present invention is not limited to the above-mentioned embodiments, but should also include other obvious changes and alternatives to the present invention. All equivalent changes and modifications made according to the contents of the present invention belong to the scope of the present invention.

Claims

1. A movable protective device for finishing and cleaning of a marine diesel engine base, installed on the edge of the base, with an oil groove or a boss along the edge, and an oil leakage hole is provided at both ends of the upper plane of the base close to the oil groove or the boss, and a stopper is installed in the oil leakage hole for limiting the sliding range of the movable protective device; characterized in that: The movable protection device comprises a device body and a limiting positioning plate; the limiting positioning plate is suspended in the oil tank or on the boss and can slide along the edge of the machine base; the device body is connected to the limiting positioning plate and is used to throw the safety belt, the device body abuts against the upper plane and side of the machine base and can roll on the upper plane and side of the machine base as the limiting positioning plate slides; A safety belt is thrown onto the movable protective device, and an operator connected to the safety belt performs finishing and cleaning work on the machine base, and changes the working area as the movable protective device slides.

2. The movable protective device for finishing and cleaning of a marine diesel engine base according to claim 1 is characterized in that: The limiting positioning plate includes a supporting plate, a detachable positioning key and a side plate; the supporting plate is horizontally arranged, a threaded hole for connecting the device body is provided in the middle, and waist-shaped holes for connecting the side plates are provided on both sides, the positioning key is a curved hook-shaped component with the hook claw facing downward, the two positioning keys are fixed on the rear side surface of the supporting plate on both sides of the threaded hole and the hook claw extends into the oil groove of the machine base or hooks on the boss to hang the limiting positioning plate on the edge of the machine base; the two side plates are vertically connected to the two sides of the supporting plate by bolts and the waist-shaped holes, and the position can be adjusted up and down.

3. The movable protective device for finishing and cleaning of a marine diesel engine base according to claim 2 is characterized in that: The lower part of the side plate is connected with a limiting bolt.

4. The movable protective device for finishing and cleaning of a marine diesel engine base according to claim 2 is characterized in that: The size of the positioning key is determined according to the base of different models and can be replaced.

5. The movable protective device for finishing and cleaning of a marine diesel engine base according to claim 2 is characterized in that: The device body comprises a base plate, a lifting lug, a side roller, an upper roller, a hand wheel, a distance tube, a spring and an adjusting bolt; The base plate is vertically arranged, and two horizontally arranged through holes are provided on the upper part. The hanging ear is fixed to the lower part of the front side of the base plate for hanging the safety belt. The two side roller axes are vertically fixed to the lower part of the reverse side of the base plate, abutting against the side of the machine base and rolling on the side. The two adjusting bolts pass through the through holes of the base plate respectively and are screwed into the threaded holes of the support plate of the limiting positioning plate to connect the device body with the limiting positioning plate. The upper roller is connected to the end of the adjusting bolt on the reverse side of the support plate through a nut. The upper roller contacts the upper plane of the base and rolls on the upper plane, the distance tube is passed through the adjusting bolt and is located between the upper roller and the support plate, the spring is passed through the adjusting bolt and is located between the base plate and the support plate, the handwheel is fixedly connected to the end of the adjusting bolt close to the front side of the base plate and abuts against the base plate, the handwheel and the adjusting bolt are rotated and the spring is compressed at the same time to adjust the distance between the base plate and the support plate, so that the side roller contacts the side of the base and rolls on the side.

6. A protective method for finishing and cleaning a marine diesel engine base using the device of claim 1, characterized in that: The protection method comprises the following steps: 1) A stopper protruding from the upper plane of the base is installed in the oil leakage hole to limit the moving range of the movable protective device; 2) inserting the hook of the positioning key into the oil groove of the machine base or hooking it on the boss, so that the upper roller contacts the upper plane of the machine base, thereby installing the movable protective device on the edge of the machine base; 3) Rotate the hand wheel to compress the spring, adjust the distance between the base plate and the support plate by the adjusting bolt, make the side roller contact the side of the machine base and roll on the side, then adjust the height of the side plate, and tighten the limit bolt; 4) Hang the safety belt on the lifting lug, perform finishing and cleaning work on the machine base, and move the protective device as the working area changes.

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