CN112009659B

CN112009659B - Marine diesel engine fixing device

Info

Publication number: CN112009659B
Application number: CN202010944008.9A
Authority: CN
Inventors: 袁思鸣; 王磊; 陈科; 高晟耀; 叶开富; 孙桂才; 肖汉华
Original assignee: 92557 Troops Of Chinese Pla; Chinese People's Liberation Army 91776; People's Liberation Army 92578
Current assignee: 92557 Troops Of Chinese Pla; Chinese People's Liberation Army 91776; People's Liberation Army 92578
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-08-31
Anticipated expiration: 2040-09-10
Also published as: CN112009659A

Abstract

The invention discloses a fixing device for a marine diesel engine, which comprises a plurality of fixing groups arranged side by side; the fixing group comprises a connecting rod, a first locking device and a second locking device, wherein the first locking device and the second locking device are used for controlling the motion state of the connecting rod; one end of the connecting rod is inserted in the first locking device, and the other end of the connecting rod is inserted in the second locking device; the connecting rods are connected with mounting plates for placing diesel engines; the mounting panel is with a plurality of the connecting rod is for dismantling the connection. The marine diesel engine fixing device has the advantages of being simple in structure, strong in practicability, capable of solving the problems of fixing and convenient to maintain of the marine diesel engine, improving user experience and facilitating large-scale popularization.

Description

Marine diesel engine fixing device

Technical Field

The invention relates to an auxiliary device of a marine diesel engine, in particular to a fixing device of the marine diesel engine.

Background

A marine diesel engine, a full name marine diesel engine, is an engine that obtains energy by burning diesel oil and converts chemical energy into mechanical energy, and the engine is an active power device of the current marine. The specific working principle of the marine diesel engine is as follows: the combustion gas is arranged in the cylinder for combustion, and then the reciprocating motion of the piston is driven through the change of the air pressure in the cylinder, so that the propeller in the ship is driven to move, and the purpose of driving the ship is achieved. In the working process of the marine diesel engine, the marine diesel engine can vibrate strongly mutually due to the combustion of gas in the cylinder and the driving of the piston, so that the vibration not only can influence the living and living of workers, but also can bring great negative influence on the whole service life of the marine diesel engine. Typical or common prior art techniques are:

the high-stability marine diesel engine mounting bracket comprises a base, a tightening mechanism and two bases, wherein the base comprises a bracket body, a bracket body and a bracket body, and the bracket body comprises CN106143860B, CN108247559B and WO2015101038A 1; the two bases are arranged at two ends of the top of the base along a first direction, the top of the base is sequentially and continuously provided with a plurality of extrusion plates from bottom to top, and two adjacent extrusion plates are hinged with each other; the top of the extrusion plate at the topmost end is provided with a tensioning rope, the tightening mechanism is positioned above the extrusion plate, and the top end of the tensioning rope extends into the tightening mechanism so that the tightening mechanism can receive and release the tensioning rope; the inner side edge of the extrusion plate is provided with a propping mechanism, and the propping mechanism comprises a support rod and claw feet; one end of the supporting rod is arranged on the inner side edge of the extrusion plate, and the other end of the supporting rod is provided with a plurality of claw feet. The mounting bracket can stably fix the marine diesel engine.

However, the applicant finds that although the above prior art can well solve the problem of stable fixation of the diesel engine, the problem of how to quickly replace and overhaul the mounted and fixed diesel engine and how to adjust the inclination angle of the diesel engine according to needs is not solved. Therefore, there is a need to develop or improve a marine diesel engine fixing device.

Disclosure of Invention

The invention aims to provide a fixing device for a marine diesel engine to solve the problems.

In order to achieve the purpose, the invention provides a fixing device for a marine diesel engine, which comprises a plurality of fixing groups arranged side by side; the fixing group comprises a connecting rod, a first locking device and a second locking device, wherein the first locking device and the second locking device are used for controlling the motion state of the connecting rod; one end of the connecting rod is inserted in the first locking device, and the other end of the connecting rod is inserted in the second locking device; the connecting rods are connected with mounting plates for placing diesel engines; the mounting panel is with a plurality of the connecting rod is for dismantling the connection.

Preferably, the first and second locking means are of identical construction.

Preferably, the first locking device comprises a base and a limiting component arranged on the base and connected with the base in a sliding mode.

Preferably, the limiting assembly comprises a connecting plate, a lifting mechanism and an adjusting assembly which are arranged up and down; one end face of the connecting plate is connected with the base in a sliding mode, and the lifting mechanism is arranged on the other end face of the connecting plate.

Preferably, the base is provided with a pair of slide rails along the length direction thereof; the pair of slide rails is connected with slide blocks in a sliding manner; the slider is connected with the connecting plate.

Preferably, the device also comprises a plurality of guide assemblies which are vertically arranged; the adjusting assembly comprises a bearing plate and a holding device arranged on one end face, far away from the lifting mechanism, of the bearing plate; the guide assembly comprises a guide post and a guide sleeve; the guide sleeve is sleeved on the guide column and can slide along the guide column in a reciprocating manner; a plurality of through holes are formed in the position, corresponding to the guide posts, of the bearing plate; the guide sleeve is inserted in the through hole and connected with the supporting plate.

Preferably, the lifting mechanism comprises a bearing seat, a screw rod and a hand wheel for controlling the screw rod to rotate; the screw rod is in threaded connection with at least two connecting blocks; the both sides of connecting block are all articulated to be connected with the linking arm, just the linking arm is kept away from the one end of connecting block with the bearing board is articulated to be connected.

Above-mentioned technical scheme provides a marine diesel engine fixing device, compares with prior art, its beneficial effect includes:

1. the diesel engine support device is provided with a plurality of fixing groups arranged side by side, so that a support space for supporting a diesel engine is formed by matching the fixing groups arranged side by side; the first locking device and the second locking device are arranged, so that the motion state of the connecting rod is limited and controlled, the problem that a diesel engine is easy to shift and misplace due to frequent and serious bumping of a ship is solved, the locking degree of the connecting rod can be adjusted at any time through the arrangement of the first locking device and the second locking device, and the connecting rod is ensured to be in a locking state; the first locking device and the second locking device which can lock the connecting rod are arranged, but when the diesel engine needs to be overhauled or hoisted, only the first locking device and the second locking device need to be controlled to loosen the connecting rod; through being provided with the mounting panel with the dismantled and assembled connecting plate of connecting rod, the convenience and the stability of the installation of diesel engine have been improved.

2. The marine diesel engine fixing device has the advantages of being simple in structure, strong in practicability, capable of solving the problems of fixing and convenient to maintain of the marine diesel engine, improving user experience and facilitating large-scale popularization.

Drawings

The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.

FIG. 1 is a schematic structural view of a first locking device of a marine diesel engine fastening device according to embodiments 1 to 3 of the present invention;

FIG. 2 is a second schematic structural view of a first locking device of a marine diesel engine fastening device according to embodiments 1 to 3 of the present invention;

fig. 3 is a third schematic structural view of the first locking device of the marine diesel engine fixing device according to embodiments 1 to 3 of the present invention;

FIG. 4 is a schematic top view of a marine diesel engine fixing device according to embodiments 1 to 3 of the present invention;

FIG. 5 is a schematic structural view of a holding device of a marine diesel engine fixing device in embodiment 3 of the present invention;

fig. 6 is a schematic structural view of a clamping device of a marine diesel engine fixing device in embodiment 3 of the invention.

Description of reference numerals: 1-a connecting rod; 2-a first locking means; 3-a second locking device; 4-mounting a plate; 5-a base; 6-defining the assembly; 61-a connecting plate; 62-a lifting mechanism; 63-an adjustment assembly; 7-a slide rail; 8-a slide block; 9-a guide assembly; 91-a guide post; 92-a guide sleeve; 10-a support plate; 11-a clasping device; 12-a bearing seat; 13-a screw rod; 14-a hand wheel; 15-connecting blocks; 16-a linker arm; 17-a box body; 18-a clamping structure; 19-a cavity; 20-a separator; 21-installing a pipeline; 22-a fixed ring; 23-a control member; 24-clasping members; 25-a rotating arm; 26-a fixed seat; 27-a bearing sleeve; 28-a drive shaft; 29-a rotating wheel; 30-a fixed shaft; 31-a rotating block; 32-a first extension arm; 33-a second extension arm; 34-a third extension arm; 35-an abutment block; 36-an anti-slip sleeve; 37-a clamping device; 38-connecting column; 39-a first gripper arm; 40-a second gripper arm; 41-a first clamping block; 42-second clamping block.

Detailed Description

The invention is further illustrated with reference to the following figures and examples.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to embodiments thereof; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Other systems, methods, and/or features of the present embodiments will become apparent to those skilled in the art upon review of the following detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description, be within the scope of the invention, and be protected by the accompanying claims. Additional features of the disclosed embodiments are described in, and will be apparent from, the detailed description that follows.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms described above will be understood by those of ordinary skill in the art according to the specific circumstances.

The first embodiment is as follows:

a marine diesel engine fixing device as shown in FIGS. 1-4 comprises a plurality of fixing groups arranged side by side; the fixed group comprises a connecting rod 1, a first locking device 2 and a second locking device 3 which are used for controlling the motion state of the connecting rod 1; one end of the connecting rod 1 is inserted into the first locking device 2, and the other end of the connecting rod is inserted into the second locking device 3; a mounting plate 4 for placing a diesel engine is connected to the connecting rods 1; the mounting panel 4 is with a plurality of connecting rod 1 is for dismantling the connection. Wherein the first locking device 2 and the second locking device 3 have the same structure.

The first locking device 2 in the embodiment 1 includes a base 5 and a limiting component 6 disposed on the base 5 and slidably connected to the base 5; the limiting assembly 6 comprises a connecting plate 61, a lifting mechanism 62 and an adjusting assembly 63 which are arranged up and down; one end face of the connecting plate 61 is slidably connected with the base 5, and the lifting mechanism 62 is installed on the other end face of the connecting plate 61.

In addition, a pair of slide rails 7 is arranged on the base 5 along the length direction thereof; the pair of slide rails 7 are connected with slide blocks 8 in a sliding manner; the slider 8 is connected to the connecting plate 61.

The present embodiment 1 further includes a plurality of guide assemblies 9 arranged vertically; the adjusting assembly 63 comprises a supporting plate 10 and a holding device 11 arranged on one end face of the supporting plate 10 far away from the lifting mechanism 62; the guide assembly 9 comprises a guide post 91 and a guide sleeve 92; the guide sleeve 92 is sleeved on the guide post 91 and can slide along the guide post 91 in a reciprocating manner; a plurality of through holes are formed in the position, corresponding to the guide posts 91, of the supporting plate 10; the guide sleeve 92 is inserted into the through hole and connected to the support plate 10.

The lifting mechanism 62 comprises a bearing seat 12, a screw rod 13 and a hand wheel 14 for controlling the screw rod 13 to rotate; the screw rod 13 is in threaded connection with at least two connecting blocks 15; the both sides of connecting block 15 all articulate and are connected with linking arm 16, just linking arm 16 keeps away from connecting block 15's one end with bearing plate 10 articulates and is connected.

Example two:

the second embodiment is further described in the above embodiments, it should be understood that the second embodiment includes all the technical features and is further specifically described as follows:

In the embodiment 2, a plurality of fixing groups arranged side by side are arranged, so that a supporting space for supporting the diesel engine is formed by matching the fixing groups arranged side by side; the first locking device 2 and the second locking device 3 are arranged, so that the motion state of the connecting rod 1 is limited and controlled, the problem that a diesel engine is easy to shift and misplace due to frequent and serious bumping of a ship is solved, the locking degree of the connecting rod 1 can be adjusted at any time by arranging the first locking device 2 and the second locking device 3, and the connecting rod 1 is ensured to be in a locking state; the first locking device 2 and the second locking device 3 which can lock the connecting rod 1 are arranged, but when the diesel engine needs to be overhauled or hoisted, only the first locking device 2 and the second locking device 3 need to be controlled to loosen the connecting rod 1; through being provided with mounting panel 4 with connecting rod 1 detachable connections board 61, the convenience and the stability of the installation of diesel engine have been improved.

In order to meet the requirements of diesel engines with different sizes and the installation adaptability, the first locking device 2 in this embodiment 2 includes a base 5 and a limiting component 6 disposed on the base 5 and slidably connected to the base 5; the limiting assembly 6 comprises a connecting plate 61, a lifting mechanism 62 and an adjusting assembly 63 which are arranged up and down; one end face of the connecting plate 61 is connected with the base 5 in a sliding manner, and the lifting mechanism 62 is arranged on the other end face of the connecting plate 61; a pair of slide rails 7 is arranged on the base 5 along the length direction thereof; the pair of slide rails 7 are connected with slide blocks 8 in a sliding manner; the slider 8 is connected to the connecting plate 61.

In order to ensure the lifting movement of the supporting plate 10, and then control the lifting movement of the diesel engine and facilitate manual maintenance, the embodiment 2 further includes a plurality of guide assemblies 9 vertically arranged; the adjusting assembly 63 comprises a supporting plate 10 and a holding device 11 arranged on one end face of the supporting plate 10 far away from the lifting mechanism 62; the guide assembly 9 comprises a guide post 91 and a guide sleeve 92; the guide sleeve 92 is sleeved on the guide post 91 and can slide along the guide post 91 in a reciprocating manner; a plurality of through holes are formed in the position, corresponding to the guide posts 91, of the supporting plate 10; the guide sleeve 92 is inserted into the through hole and connected to the support plate 10.

The clasping device 11 comprises a box body 17 and clamping structures 18 arranged on two sides of the box body 17; a cavity 19 is arranged in the box body 17; the box body 17 is provided with clearance holes transversely penetrating through two end faces of the box body; the clearance hole is communicated with the cavity 19; a partition plate 20 is arranged in the cavity 19; the partition plate 20 is provided with a mounting hole; the central axis of the mounting hole is superposed with the central axis of the clearance hole; further comprising a mounting duct 21; one end of the mounting pipeline 21 is connected with the mounting hole, and the other end of the mounting pipeline is connected with the clearance hole; the connecting rod 1 is inserted in the installation pipeline 21.

A fixing ring 22 is arranged on the outer surface of the box body 17 corresponding to the position of the clearance hole; the central axis of the fixing ring 22 coincides with the central axis of the clearance hole.

In the embodiment 2, the clamping structure 18 includes a control member 23 and at least two clasping members 24; the adjacent clasps 24 are hinged through a rotating arm 25; the control member 23 comprises a fixed seat 26, a bearing sleeve 27, a transmission shaft 28 and a rotating wheel 29 for controlling the transmission shaft 28 to slide relative to the fixed seat 26; one end of the fixed seat 26 extends out of the box body 17 and is connected with the bearing sleeve 27; the bearing sleeve 27 is in threaded connection with the transmission shaft 28.

The clasping member 24 comprises a fixed shaft 30 and a rotating block 31; the rotating block 31 is sleeved on the fixed shaft 30 and can rotate relative to the fixed shaft 30; a first extension arm 32, a second extension arm 33 and a third extension arm 34 extend outwards from the peripheral side of the rotating block 31; the end of the first extension arm 32 far away from the rotating block 31 is hinged with the end of the transmission shaft 28 far away from the bearing seat 27; the end of the second extension arm 33 away from the rotation block 31 is connected to the abutting block 35; the plurality of abutting blocks 35 are uniformly distributed around the periphery of the connecting rod 1; the third extension arm 34 is hinged with the third extension arm 34 adjacent to the rotating block 31; in particular, the number of the clasps 24 is 2, and the clasps are respectively a front clasp 24, a middle clasp 24 and a rear clasp 24; furthermore, the rotating arm 25 is a mirror image adjusting lever; the second extension arm 33 of the front clasp 24, the second extension arm 33 of the middle clasp 24 and the second extension arm 33 of the rear clasp 24 are each pivotable towards and away from the connecting rod 1.

In this embodiment 2, an anti-slip sleeve 36 is further inserted into the installation pipeline 21; the connecting rod 1 is inserted into the anti-slip sleeve 36.

In order to ensure the stability of the support plate 10 during lifting, the lifting mechanism 62 in this embodiment 2 includes a bearing block 27, a screw 13, and a hand wheel 14 for controlling the screw 13 to rotate; the screw rod 13 is in threaded connection with at least two connecting blocks 15; the both sides of connecting block 15 all articulate and are connected with linking arm 16, just linking arm 16 keeps away from connecting block 15's one end with bearing plate 10 articulates and is connected.

The working principle is as follows:

the marine diesel engine is easy to move due to the long-term jolt of the ship, so that the diesel engine and parts are dislocated or a connecting pipeline is damaged. Firstly, mounting a mounting plate 4 on a pair of connecting rods 1 arranged side by side; further, the diesel engine is fixed on the mounting plate 4 through bolts; further, the connecting rod 1 is lifted by using a lifting device; further, aligning the clearance holes of the first locking device 2 and the second locking device 3 with the connecting rod 1, and pushing the first locking device 2 and the second locking device 3 to enable the connecting rod 1 to be stably inserted into the pipeline; further, the hand wheel 14 is rotated to control the screw rod 13 to rotate, so that the movement of the connecting block 15 is controlled, and the swinging of the connecting arm 16 is further controlled so that the lifting movement of the bearing plate 10 is controlled until the diesel engine reaches the designated height; further, the rotating block 31 is adjusted so as to control the rotation of the front clasping member 24, the middle clasping member 24 and the rear clasping member 24; further, the first extension arm 32, the second extension arm 33 and the third extension arm 34 are also rotated therewith to abut against the connecting rod 1, thereby achieving clasping of the connecting rod 1.

Example three:

third embodiment is further described in the above embodiments, it should be understood that the present embodiment includes all the technical features described above and further specifically described as:

In the embodiment 3, a plurality of fixing groups arranged side by side are arranged, so that a supporting space for supporting the diesel engine is formed by matching the fixing groups arranged side by side; the first locking device 2 and the second locking device 3 are arranged, so that the motion state of the connecting rod 1 is limited and controlled, the problem that a diesel engine is easy to shift and misplace due to frequent and serious bumping of a ship is solved, the locking degree of the connecting rod 1 can be adjusted at any time by arranging the first locking device 2 and the second locking device 3, and the connecting rod 1 is ensured to be in a locking state; the first locking device 2 and the second locking device 3 which can lock the connecting rod 1 are arranged, but when the diesel engine needs to be overhauled or hoisted, only the first locking device 2 and the second locking device 3 need to be controlled to loosen the connecting rod 1; through being provided with mounting panel 4 with connecting rod 1 detachable connections board 61, the convenience and the stability of the installation of diesel engine have been improved.

In order to meet the requirements of diesel engines with different sizes and the installation adaptability, the first locking device 2 in this embodiment 3 includes a base 5 and a limiting component 6 disposed on the base 5 and slidably connected to the base 5; the limiting assembly 6 comprises a connecting plate 61, a lifting mechanism 62 and an adjusting assembly 63 which are arranged up and down; one end face of the connecting plate 61 is connected with the base 5 in a sliding manner, and the lifting mechanism 62 is arranged on the other end face of the connecting plate 61; a pair of slide rails 7 is arranged on the base 5 along the length direction thereof; the pair of slide rails 7 are connected with slide blocks 8 in a sliding manner; the slider 8 is connected to the connecting plate 61.

In order to ensure the lifting movement of the supporting plate 10, and then control the lifting movement of the diesel engine and facilitate manual maintenance, the embodiment 3 further includes a plurality of guide assemblies 9 vertically arranged; the adjusting assembly 63 comprises a supporting plate 10 and a holding device 11 arranged on one end face of the supporting plate 10 far away from the lifting mechanism 62; the guide assembly 9 comprises a guide post 91 and a guide sleeve 92; the guide sleeve 92 is sleeved on the guide post 91 and can slide along the guide post 91 in a reciprocating manner; a plurality of through holes are formed in the position, corresponding to the guide posts 91, of the supporting plate 10; the guide sleeve 92 is inserted into the through hole and connected to the support plate 10.

In the embodiment 3, the clamping structure 18 includes a control member 23 and at least two clasping members 24; the adjacent clasps 24 are hinged through a rotating arm 25; the control member 23 comprises a fixed seat 26, a bearing sleeve 27, a transmission shaft 28 and a rotating wheel 29 for controlling the transmission shaft 28 to slide relative to the fixed seat 26; one end of the fixed seat 26 extends out of the box body 17 and is connected with the bearing sleeve 27; the bearing sleeve 27 is in threaded connection with the transmission shaft 28.

In this embodiment 3, an anti-slip sleeve 36 is further inserted into the installation pipeline 21; the connecting rod 1 is inserted into the anti-slip sleeve 36.

In order to ensure the stability of the support plate 10 during lifting, the lifting mechanism 62 in this embodiment 3 includes a bearing block 27, a screw 13, and a hand wheel 14 for controlling the screw 13 to rotate; the screw rod 13 is in threaded connection with at least two connecting blocks 15; the both sides of connecting block 15 all articulate and are connected with linking arm 16, just linking arm 16 keeps away from connecting block 15's one end with bearing plate 10 articulates and is connected.

In this embodiment 3, the connecting rod 1 is clamped with a pair of clamping devices 37; each of the clamping devices 37 is respectively positioned at two sides of the mounting plate 4; the clamping device 37 comprises a connecting column 38 connected with a hoisting device in a hanging manner, a first clamping arm 39 and a second clamping arm 40 hinged with the connecting column 38, and a first clamping block 41 and a second clamping block 42; one end of the first clamping block 41 is hinged with the first clamping arm 39, and the other end is provided with a first clamping part; one end of the second clamping block 42 is hinged with the second clamping arm 40, and the other end is provided with a second clamping part; the first clamping block 41 and the second clamping block 42 are arranged in a crossed manner, and a clamping space for clamping the connecting rod 1 is formed between the first clamping part and the second clamping part.

In addition, the end of the connecting column 38 remote from the first and second gripper arms 39, 40 is provided with a hook portion. By arranging the clamping device 37, the requirements of hoisting and overhauling the diesel engine at any time are met.

The working principle is as follows:

Although the invention has been described above with reference to various embodiments, it should be understood that many changes and modifications may be made without departing from the scope of the invention. That is, the methods, systems, and devices discussed above are examples. Various configurations may omit, substitute, or add various procedures or components as appropriate. For example, in alternative configurations, the methods may be performed in an order different than that described, and/or various components may be added, omitted, and/or combined. Moreover, features described with respect to certain configurations may be combined in various other configurations, as different aspects and elements of the configurations may be combined in a similar manner. Further, elements therein may be updated as technology evolves, i.e., many elements are examples and do not limit the scope of the disclosure or claims.

Specific details are given in the description to provide a thorough understanding of the exemplary configurations including implementations. However, configurations may be practiced without these specific details, for example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail in order to avoid obscuring the configurations. This description provides example configurations only, and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes may be made in the function and arrangement of elements without departing from the spirit or scope of the disclosure.

It is intended that the foregoing detailed description be regarded as illustrative rather than limiting, and that it be understood that it is the following claims, including all equivalents, that are intended to define the spirit and scope of this invention. The above examples are to be construed as merely illustrative and not limitative of the remainder of the disclosure. After reading the description of the invention, the skilled person can make various changes or modifications to the invention, and these equivalent changes and modifications also fall into the scope of the invention defined by the claims.

Claims

1. A marine diesel engine fixing device comprises a plurality of fixing groups arranged side by side; the fixing group comprises a connecting rod (1), a first locking device (2) and a second locking device (3) which are used for controlling the motion state of the connecting rod (1); one end of the connecting rod (1) is inserted into the first locking device (2), and the other end of the connecting rod is inserted into the second locking device (3); a mounting plate (4) for placing a diesel engine is connected to the connecting rods (1); the mounting plate (4) is detachably connected with the connecting rods (1); the first locking device (2) and the second locking device (3) are identical in structure, and the fixing groups arranged side by side are matched to form a supporting space for supporting the diesel engine; the first locking device (2) comprises a base (5) and a limiting component (6) which is arranged on the base (5) and is connected with the base (5) in a sliding way; the limiting assembly (6) comprises a connecting plate (61), a lifting mechanism (62) and an adjusting assembly (63) which are arranged up and down; one end face of the connecting plate (61) is connected with the base (5) in a sliding mode, and the lifting mechanism (62) is installed on the other end face of the connecting plate (61); a pair of slide rails (7) is arranged on the base (5) along the length direction thereof; the pair of slide rails (7) are connected with slide blocks (8) in a sliding way; the sliding block (8) is connected with the connecting plate (61);

the fixing device of the marine diesel engine also comprises a plurality of guide assemblies (9) which are vertically arranged; the adjusting assembly (63) comprises a bearing plate (10) and a holding device (11) arranged on one end face, far away from the lifting mechanism (62), of the bearing plate (10); the guide assembly (9) comprises a guide post (91) and a guide sleeve (92); the guide sleeve (92) is sleeved on the guide column (91) and can slide along the guide column (91) in a reciprocating manner; a plurality of through holes are formed in the position, corresponding to the guide post (91), of the bearing plate (10); the guide sleeve (92) is inserted into the through hole and connected with the bearing plate (10);

the clasping device (11) comprises a box body (17) and clamping structures (18) arranged on two sides of the box body (17); a cavity (19) is arranged in the box body (17); the box body (17) is provided with clearance holes transversely penetrating through two end faces of the box body; the clearance hole is communicated with the cavity (19); a clapboard (20) is arranged in the cavity (19); the partition plate (20) is provided with a mounting hole; the central axis of the mounting hole is superposed with the central axis of the clearance hole; further comprising a mounting duct (21); one end of the mounting pipeline (21) is connected with the mounting hole, and the other end of the mounting pipeline is connected with the clearance hole; the connecting rod (1) is inserted into the mounting pipeline (21);

a fixing ring (22) is arranged on the outer surface of the box body (17) corresponding to the position of the clearance hole; the central axis of the fixing ring (22) is superposed with the central axis of the clearance hole;

wherein the gripping structure (18) comprises a control member (23) and at least two clasps (24); the adjacent clasps (24) are hinged through rotating arms (25); the control part (23) comprises a fixed seat (26), a bearing sleeve (27), a transmission shaft (28) and a rotating wheel (29) for controlling the transmission shaft (28) to slide relative to the fixed seat (26); one end of the fixed seat (26) extends out of the box body (17) and is connected with the bearing sleeve (27); the bearing sleeve (27) is in threaded connection with the transmission shaft (28);

the clasping piece (24) comprises a fixed shaft (30) and a rotating block (31); the rotating block (31) is sleeved on the fixed shaft (30) and can rotate relative to the fixed shaft (30); a first extension arm (32), a second extension arm (33) and a third extension arm (34) extend outwards from the peripheral side of the rotating block (31); one end of the first extension arm (32) far away from the rotating block (31) is hinged with one end of the transmission shaft (28) far away from the bearing sleeve (27); one end, far away from the rotating block (31), of the second extension arm (33) is connected with an abutting block (35); the plurality of abutting blocks (35) are uniformly distributed around the periphery of the connecting rod (1); the third extension arm (34) is hinged with the third extension arm (34) adjacent to the rotating block (31); the number of the clasping pieces (24) is (2), and the clasping pieces are respectively a front clasping piece (24), a middle clasping piece (24) and a rear clasping piece (24); furthermore, the rotating arm (25) is a mirror image adjusting rod; the second extension arm (33) of the front clasping member (24), the second extension arm (33) of the middle clasping member (24) and the second extension arm (33) of the rear clasping member (24) can swing to approach and depart from the connecting rod (1);

an anti-skid sleeve (36) is also inserted in the mounting pipeline (21); the connecting rod (1) is inserted into the anti-skid sleeve (36); the lifting mechanism (62) comprises a bearing sleeve (27), a screw rod (13) and a hand wheel (14) for controlling the screw rod (13) to rotate; the screw rod (13) is in threaded connection with at least two connecting blocks (15); connecting arms (16) are hinged to two sides of the connecting block (15), and one end, far away from the connecting block (15), of each connecting arm (16) is hinged to the bearing plate (10); a pair of clamping devices (37) is clamped on the connecting rod (1); each clamping device (37) is respectively positioned at two sides of the mounting plate (4); the clamping device (37) comprises a connecting column (38) connected with the hoisting equipment in a hanging mode, a first clamping arm (39) and a second clamping arm (40) hinged to the connecting column (38), and a first clamping block (41) and a second clamping block (42); one end of the first clamping block (41) is hinged with the first clamping arm (39), and the other end of the first clamping block is provided with a first clamping part; one end of the second clamping block (42) is hinged with the second clamping arm (40), and the other end of the second clamping block is provided with a second clamping part; the first clamping block (41) and the second clamping block (42) are arranged in a crossed mode, and a clamping space used for clamping the connecting rod (1) is formed between the first clamping portion and the second clamping portion.