Assembling system for small diesel generator and assembling process thereof

Abstract

This invention provides an assembly system and assembly process for a small diesel generator, relating to the field of diesel generator assembly technology. The system includes: a lifting module with a hook at its bottom for connecting to the generator body lifting ring; the hook is mounted on the lifting module via an adjustable connector, allowing the support surface of the lifting module to be horizontal before the generator body is lifted off the ground by adjusting the connector; an adjusting rod extending outward from the side of the lifting module; an auxiliary adjusting module fixed to the side of the mounting base, the auxiliary adjusting module having an openable and closable gripper unit and a vertical moving unit for driving the gripper unit to move vertically; and independently adjustable bolts on the lifting module, enabling the lifting device to adjust the support plate to a horizontal position before the generator body is lifted off the ground, providing an initial reference for subsequent alignment; simultaneously, the load-bearing material distributes the weight of the generator body to the lifting plate, improving load-bearing capacity.

Description

Technical Field

[0001] This invention relates to the field of diesel generator assembly technology, and more specifically, to an assembly system and assembly process for small diesel generators. Background Technology

[0002] During the assembly of small diesel generator sets, the diesel engine block and generator block are usually hoisted sequentially onto a mounting base with a buffer connector for alignment. Current practices typically involve using lifting equipment to lift the diesel engine block with a spreader. Workers control the spreader height using a remote control. As the engine block approaches the mounting base, workers manually support the swaying block, adjusting its position to align the bolt feet at the bottom of the engine block with the mounting holes on the buffer connector before inserting bolts for secure fixing.

[0003] Because of the significant weight of the diesel engine itself, the starting and stopping of the lifting device during lifting and lowering generates vertical inertial impacts, causing noticeable vibrations and swaying of the lifted machine, making it difficult to stabilize its posture. Workers often need to repeatedly adjust the height of the lifting device and manually push and pull the machine to attempt alignment, which is not only labor-intensive and inefficient but also poses certain safety hazards during the manual handling process. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an assembly system and assembly process for small diesel generators, which solves the problems of difficult alignment and low assembly efficiency caused by the vibration of the lifting equipment and the offset of the center of gravity when hoisting the diesel engine body and the generator body.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An assembly system for a small diesel generator includes: a lifting module with a hook at its bottom for connecting to the lifting ring of the generator body. The hook is mounted on the lifting module via an adjustable connector, allowing the support surface of the lifting module to be horizontal before the generator body is lifted off the ground by adjusting the connector; an adjusting rod extending outward from the side of the lifting module; and an auxiliary adjusting module fixed to the side of the mounting base. The auxiliary adjusting module is equipped with an openable gripper unit and a vertical moving unit that drives the gripper unit to move vertically. When the generator body is lifted above the mounting base, the gripper unit clamps the adjusting rod to keep the support surface of the lifting module horizontal, and the vertical moving unit drives the gripper unit to smoothly lower the lifting module and the generator body it is lifting, aligning the mounting feet of the generator body with the buffer connecting seats on the mounting base.

[0006] According to one embodiment of the present invention, the lifting module includes a support plate and a load-bearing member connected below the support plate. The length-adjustable connector is a bolt column. The bottom end of the bolt column is fixedly connected to the hook, and the top end is screwed into the threaded groove on the support plate and locked by a lock nut.

[0007] According to one embodiment of the present invention, the load-bearing member includes a first load-bearing rib and a second load-bearing rib. The first load-bearing rib is located on both sides of the second load-bearing rib, making the load-bearing member as a whole I-shaped. The bolt is inserted into both ends of the first load-bearing rib. The top of the support plate is provided with a hanging plate, and the lower end of the hanging plate is fixedly connected to the top end of the second load-bearing rib.

[0008] According to one embodiment of the present invention, the cross-sections of the first load-bearing rib and the second load-bearing rib are both I-shaped, and the hanging plate is also welded to the upper end face of the support plate through a reinforcing plate.

[0009] According to one embodiment of the present invention, the adjusting rod is disposed on both sides of the load-bearing member, and the axis of the adjusting rod is perpendicular to the surface of the support plate.

[0010] According to one embodiment of the present invention, at least two adjusting rods are provided and are symmetrically distributed on both sides of the lifting module.

[0011] According to one embodiment of the present invention, the auxiliary adjustment module further includes a movable base and a vertical support column; the movable base is provided with a position fixing unit for fixing itself to the side of the mounting base; the vertical support column is erected on the movable base, and the vertical moving unit is mounted on the vertical support column.

[0012] According to one embodiment of the present invention, the gripper unit includes a support bracket, a first gripper arm fixed within the support bracket, a second gripper arm slidably disposed relative to the first gripper arm, and a telescopic cylinder for driving the second gripper arm to slide; the first gripper arm and the second gripper arm, when closed, form an annular clamping groove for clamping the adjusting rod.

[0013] The assembly process for a small diesel generator includes the following steps: S1, connecting the hook of the lifting module to the lifting ring of the generator body placed on the ground, the lifting equipment gently lifts the lifting module, and adjusts the support surface of the lifting module to a horizontal state and locks it by adjusting the length of the connecting parts; S2, fixing the auxiliary adjustment module to the side of the mounting base and adjusting its gripper unit to a preset height range; S3, the lifting equipment lifts the generator body above the mounting base, so that the adjusting rod enters the clamping range of the gripper unit, the gripper unit clamps the adjusting rod, so that the support surface of the lifting module is restored and kept horizontal, and the generator body is adjusted to the installation posture; S4, the vertical moving unit drives the gripper unit to move downward, guiding the mounting feet of the generator body to sit smoothly on the buffer connecting seat of the mounting base, and the fixed connection is completed after alignment.

[0014] According to one embodiment of the present invention, when it is necessary to assemble two different specifications of engine blocks, namely diesel engine block and generator block, two sets of lifting tool modules corresponding to the specifications of diesel engine block and generator block respectively and both of which have completed the pre-leveling in step S1 are prepared so as to be used alternately during the assembly process to avoid repeated leveling operations on the same lifting tool module.

[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. In this invention, the independently adjustable bolts on the lifting module enable the lifting device to adjust the support plate to a horizontal position before the machine body is lifted off the ground, providing an initial reference for subsequent alignment; at the same time, the load-bearing material distributes the weight of the machine body to the lifting plate, improving the stress distribution.

[0016] 2. In this invention, the gripper unit on the auxiliary adjustment module holds the adjustment rods on both sides of the lifting module, which can counteract the interference of the lifting equipment's sling sway on the lifting device, keep the support plate stable in a horizontal state, and the machine body will naturally adjust to be parallel to the mounting foot plane and the base, reducing the difficulty of manual alignment and improving assembly efficiency and operational safety.

[0017] 3. In this invention, the gripper unit is driven by the vertical moving unit to lift and lower smoothly, so that the machine body can fall to the mounting base in a horizontal posture, avoiding the impact caused by manual pushing and pulling and the inertia of the hoist, which is beneficial to protect the machine body and the buffer connecting seat on the mounting base. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of the assembly system for a small diesel generator according to the present invention; Figure 2 This is a structural diagram of the mounting base in this invention; Figure 3 This is a structural diagram of the lifting device module in this invention; Figure 4 This is a cross-sectional view of the lifting device module in this invention; Figure 5 This is a schematic diagram showing the installation state of the lifting module and the diesel engine body in this invention; Figure 6 for Figure 5 Another perspective on the structure; Figure 7 This is a structural diagram of the auxiliary adjustment module in this invention; Figure 8 for Figure 1 A structural diagram of the hidden diesel engine block; Figure 9 This is a cross-sectional view of the gripper unit in this invention; Figure 10 This is a partial structural diagram of the auxiliary adjustment module in this invention; Figure 11 This is a partial structural diagram of an assembly system for a small diesel generator according to a second embodiment of the present invention.

[0019] Figure label: 100. Lifting Module; 101. Support Plate; 102. Load-bearing Member; 1021. First Load-bearing Rib; 1022. Second Load-bearing Rib; 103. Bolt Column; 104. Hook; 105. Adjusting Rod; 106. Lifting Plate; 107. Locking Nut; 200. Auxiliary Adjustment Module; 201. Moving Base; 202. Horizontal Movement Unit; 203. Position Fixing Unit; 2031. Support Plate; 2032. First Clamping Block; 2033, Second clamping block; 2034, Screw; 2035, Handwheel; 204, Vertical support column; 205, Vertical moving unit; 206, Gripper unit; 2061, Bearing bracket; 2062, First clamping arm; 2063, Second clamping arm; 2064, Slider; 2065, Slide rod; 2066, Telescopic cylinder; 300, Mounting base; 301, Buffer connecting seat; 400, Diesel engine body; 500, Generator body. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: This invention provides an assembly system for a small diesel generator, see reference. Figure 1 and Figure 2The assembly system includes a lifting module 100, with a hook 104 at its bottom. The hook 104 is connected to a corresponding lifting ring on the diesel engine block 400, allowing the lifting equipment to lift the diesel engine block 400 as a whole via the lifting module 100. During the installation of the diesel engine block 400, the lifting equipment lifts the diesel engine block 400 above the mounting base 300. Typically, the height of the diesel engine block 400 needs to be manually adjusted continuously at this point. When the diesel engine block 400 is close to the mounting base 300, the worker manually swings the diesel engine block 400 so that the bolt connection feet of the diesel engine block 400 are aligned with the buffer connection seat 301 on the mounting base 300. Finally, the mounting base 300 and the diesel engine block 400 are fixedly connected by bolts. During the alignment and installation process, the workers need to use a remote control to control the height of the lifting device. Due to the large weight of the diesel engine 400 itself, the lifting device will generate inertial impact in the vertical direction when it is raised or lowered. This manifests as the diesel engine 400 generating large vibrations, making it difficult to control its posture. At this time, the workers need to manually pull the suspended module to try to align it multiple times.

[0022] To address the aforementioned issues, this embodiment provides an auxiliary adjustment module 200. The auxiliary adjustment module 200 can be fixed on both sides of the mounting base 300. By combining the lifting module 100 with the auxiliary adjustment module 200, the attitude of the lifting module 100 and the diesel engine body 400 suspended below it can be adjusted and the displacement guided, ensuring that the diesel engine body 400 can be aligned during descent.

[0023] Specifically, see Figure 3 and Figure 4The lifting module 100 is composed of a support plate 101 located above and a load-bearing member 102 located below the support plate 101. The load-bearing member 102, installed on the lower end face of the support plate 101, includes a first load-bearing rib 1021 and a second load-bearing rib 1022. The first load-bearing rib 1021 is located on both sides of the second load-bearing rib 1022, making the load-bearing member 102 generally H-shaped. Hooks 104 are provided at both ends of the bottom of the load-bearing member 102. The support plate 101 has an internal through groove containing a bolt post 103. The bottom end of the bolt post 103 is fixedly connected to a corresponding hook 104. A threaded groove corresponding to the bolt post 103 is formed on the support plate 101. After the bolt post 103 is connected to the support plate 101, a locking nut 107 is provided at the top of the bolt post 103, allowing workers to lock the bolt post 103 onto the support plate 101 after adjusting its length. To achieve heavy load-bearing capacity, the first load-bearing rib 1021 and the second load-bearing rib 1022 both have an I-shaped cross-section. A lifting plate 106 is provided at the top of the support plate 101, with lifting holes for connecting lifting equipment slings. The lower end of the lifting plate 106 is fixedly connected to the top end of the second load-bearing rib 1022 by bolts, and the lifting plate 106 is also welded to the upper end face of the support plate 101 by a reinforcing plate. In this way, when the bottom end of the lifting module 100 is lifting the diesel engine body 400 through the hook 104, the weight transfer path of the lifting module 100 bearing the diesel engine body 400 is sequentially the hook 104, bolt column 103, support plate 101, load-bearing member 102, and lifting plate 106. The weight of the diesel engine body 400 is distributed as a whole by the lifting module 100, first evenly distributed to the hook 104, then transferred to the support plate 101 through the bolt column 103, and then distributed to the lifting plate 106 by the load-bearing member 102 to obtain a good load-bearing effect.

[0024] In addition to the above, the lifting module 100 provided in this embodiment can ensure the alignment of the diesel engine block 400. Normally, the centerline of the diesel engine block 400's output shaft is horizontal, and the centerline of the diesel engine block 400's output shaft is parallel to the plane of its various bolt connection feet. When the support plate 101 is horizontal, by adjusting the length of each bolt post 103, it can be ensured that the centerline of the diesel engine block 400's output shaft, installed at the bottom of the lifting module 100, is parallel to the support plate 101. Figure 5 As shown, when the diesel engine body 400 is hoisted below the lifting module 100, it can be regarded as the diesel engine body 400 being fixedly installed on the lifting module 100. When the lifting module 100 is in a horizontal state, the center line A of the output shaft of the diesel engine body 400 is parallel to the plane B where the support plate 101 is located.

[0025] During the installation of the lifting module 100, the four hooks 104 on the lifting module 100 can be connected to the diesel engine block 400 placed on the ground. The lifting equipment is then raised to tighten the hooks 104 connected to the lifting ring of the diesel engine block 400. At this time, a level is placed on the upper surface of the support plate 101. The worker uses tools to fine-tune the length of the bolt column 103 so that the level shows that the support plate 101 is in a horizontal state. Then, the locking nut 107 on the support plate 101 is tightened to lock the bolt column 103 to the support plate 101. Once the worker has adjusted the lifting module 100, it can be used for diesel engine blocks 400 of the same specifications, that is, it does not require frequent adjustment. However, in order to ensure that the lifting module 100 functions properly during use, the worker can use a level to measure the state of the lifting module 100 before each use and choose whether to adjust it according to the actual situation, so as to improve work efficiency and ensure accuracy.

[0026] It should be noted that when the diesel engine block 400 is placed on the ground and connected to the adjusted spreader module 100, plane B on the spreader module 100 is horizontal. However, when the lifting equipment lifts the diesel engine block 400 (i.e., when the diesel engine block 400 leaves the ground), plane B will tilt. This is because the lifting ring on the diesel engine block 400 is not positioned at the center of gravity of the diesel engine block 400, but rather at any position on the diesel engine block 400. Furthermore, under existing technology, the lifting... The lifting ring is not set at the center of gravity of the diesel engine block 400. If the lifting ring were set at the center of gravity of the diesel engine block 400, the center of gravity of each diesel engine block 400 would need to be tested. This would not only increase the cost, but even if the lifting equipment were to lift the lifting ring set at the center of gravity of the diesel engine block 400, the above-mentioned alignment problem would still exist. That is, when the diesel engine block 400 is lifted smoothly above the mounting base 300, there will still be a vibration phenomenon. At this time, the workers would still need to try to align it multiple times.

[0027] Based on the above explanation, please refer to Figure 7 and Figure 8 The auxiliary adjustment module 200 of this embodiment includes a movable base 201. A position fixing unit 203 is installed on one side of the movable base 201. The auxiliary adjustment module 200 as a whole can be fixed to one side of the mounting base 300 through the position fixing unit 203. A vertical support column 204 is installed on the movable base 201. A horizontally installed gripper unit 206 is connected to the vertical support column 204 through a vertical moving unit 205. The vertical moving unit 205 can drive the gripper unit 206 to rise or fall as a whole. Further, refer to Figure 5 and Figure 6The lifting module 100 has at least two adjusting rods 105 installed on both sides of the load-bearing member 102. The axis C of the adjusting rod 105 is perpendicular to the plane B where the lifting module 100 is located. The mounting base 300 has auxiliary adjusting modules 200 on both sides, corresponding to the adjusting rods 105. The gripper unit 206 on the auxiliary adjusting module 200 cooperates with the adjusting rod 105. The gripper unit 206 on both sides clamps the adjusting rod 105 on the corresponding side, so that the lifting module 100 returns to a horizontal state. At this time, by using the lifting operation of the vertical moving unit 205, the diesel engine body 400 hoisted below the lifting module 100 can be smoothly placed onto the mounting base 300.

[0028] Specifically, the lifting module 100 is leveled based on the state of the diesel engine block 400 when it is placed on the ground, at which point the output shaft centerline A of the diesel engine block 400 is parallel to the support plate plane B. When the diesel engine block 400 is lifted, the support plate 101 will tilt because the center of gravity does not coincide with the lifting point. However, since the hook 104 and the lifting ring are movably connected, the diesel engine block 400 is essentially suspended below the lifting module 100 via the lifting ring, and can rotate slightly relative to the support plate 101. At this time, if the adjusting rod 105 is clamped by the gripper units 206 on both sides, the tilted support plate 101 is forcibly restored to a horizontal state. The diesel engine block 400 will then rotate around the lifting ring, adaptively adjusting its posture so that its output shaft centerline A is parallel to plane B again, that is, the mounting foot plane returns to horizontal, thereby aligning with the buffer connecting seat 301 plane on the mounting base 300. Because the adjusting rods 105 on both sides of the lifting module 100 are clamped, the gripper unit 206 on the auxiliary adjusting module 200 temporarily fixes the entire lifting module 100 in a horizontal state by clamping the adjusting rods 105. At this time, the lifting equipment's sling is still swaying, but it no longer interferes with the lifting module 100, thus stabilizing the diesel engine body 400. The axis A of the diesel engine body 400 is in a horizontal state, ensuring that the plane where the bolt feet on the diesel engine body 400 are located is also aligned with the buffer connecting seat 301 on the mounting base 300. At this time, the vertical moving unit 205 is activated, driving the gripper unit 206 to descend, which can steadily place the four bolt connecting feet of the diesel engine body 400 onto the corresponding buffer connecting seats 301, thus eliminating the need for manual operation.

[0029] When the diesel engine block 400 is lifted using the lifting module 100 of this embodiment, the connection between the lifting module 100 and the lifting ring on the diesel engine block 400 is not a fixed connection, but rather a connection between the hook 104 and the lifting ring. During the lifting process, due to the influence of the center of gravity of the diesel engine block 400, the diesel engine block 400 will exhibit a "hinged" action at the lifting connection point, that is, a slight angle appears between axis A and plane B. The purpose is to reduce the force on one side of the lifting module 100, so that the weight of the diesel engine block 400 is evenly distributed to the four hooks 104, thereby improving the overall service life of the lifting module 100.

[0030] Furthermore, the gripper unit 206 includes a support bracket 2061, see reference. Figure 9 The support bracket 2061 is U-shaped with its opening facing downwards. A slider 2064 is slidably mounted on the horizontal end face of the support bracket 2061 via a slide rod 2065. The slider 2064 is horizontally slidable and has a second clamping arm 2063 mounted on it. A first clamping arm 2062 is fixedly mounted on the vertical inner end face of one side of the support bracket 2061. When the first clamping arm 2062 and the second clamping arm 2063 are closed, an annular clamping groove is left between them to clamp the adjusting rod 105. A telescopic cylinder 2066 is mounted on the vertical end face of the other side of the support bracket 2061. The telescopic cylinder 2066 is connected to the slider 2064 via a transmission component, so that the telescopic cylinder 2066 can drive the slider 2064 to slide along the slide rod 2065, realizing the clamping and releasing action between the first clamping arm 2062 and the second clamping arm 2063.

[0031] Further, see Figure 10 A groove is provided on one side of the movable base 201, and the support plate 2031 of the position fixing unit 203 is installed in the groove. The support plate 2031 is U-shaped, and the opening is aligned with the groove. A screw 2034 and a guide rod are installed in the U-shaped opening of the support plate 2031. The guide rod is distributed on both sides of the screw 2034. A second clamping block 2033 is fixed to the bottom of the support plate 2031, and a first clamping block 2032 is provided above the second clamping block 2033. The first clamping block 2032 has an opening. The bracket plate 2031 has a threaded opening that matches the screw 2034 and guide holes that match the two guide rods. A handwheel 2035 is also rotatably connected to the top of the bracket plate 2031. The bottom rotating shaft of the handwheel 2035 is fixedly connected to the screw 2034. When the handwheel 2035 is rotated, the screw 2034 can drive the first clamping block 2032 to move, thereby realizing the clamping operation between the first clamping block 2032 and the second clamping block 2033, so that the movable base 201 can be fixed as a whole to one side of the mounting base 300.

[0032] After the movable base 201 is fixed, in order to facilitate the movement of the gripper unit 206 in the horizontal direction, a horizontal moving unit 202 is installed on the movable base 201. Both the horizontal moving unit 202 and the vertical moving unit 205 are lead screw modules, which will not be described in detail here.

[0033] Example 2, see Figure 11 After the diesel engine block 400 is installed, heavier components of the diesel generator set that require alignment can also be assembled using the aforementioned lifting module 100 and auxiliary adjustment module 200. For example, four lifting rings are installed on the generator block 500, corresponding to the four hooks 104 below the lifting module 100. The lifting module 100 and the generator block 500 are connected by the hooks 104.

[0034] Similarly, the mounting base 300 has a buffer connecting seat 301 corresponding to the bottom bolt connecting foot of the generator body 500. In this embodiment, the generator body 500 is located on the ground, the lifting module 100 is suspended from the generator body 500 and the entire lifting module 100 is lifted by the lifting equipment to ensure that the hook 104 and the lifting ring are taut. At this time, the plane B where the lifting module 100 is located is leveled using a level. Then, the lifting equipment lifts the generator body 500 off the ground. Due to the offset of the center of gravity, the lifting module 100 tilts. Subsequently, the auxiliary adjustment module 200 is fixed on both sides of the mounting base 300. The adjustment rod 105 is clamped by the gripper unit 206 to force the support plate 101 of the lifting module 100 to return to the horizontal. The generator body 500 then rotates around the lifting ring until the axis is horizontal and the mounting foot plane is aligned with the buffer connecting seat 301. Then, the vertical moving unit 205 drives it to descend to complete the alignment and installation.

[0035] It should be noted that, since the diesel engine block 400 and the generator block 500 have different specifications, in actual use, the lifting module 100 corresponding to the diesel engine block 400 and the generator block 500 can be used respectively to avoid frequent adjustments when using them interchangeably, thereby improving work efficiency.

[0036] Furthermore, at least three lifting rings are provided on the generator body 500 to ensure that when both are in the adjustment state, the lifting module 100 and the generator body 500 are in a relatively fixed state, and the adjustment action of the lifting module 100 can be effectively transmitted to the generator body 500 to ensure reliable attitude adjustment.

[0037] Example 3: Based on Examples 1 and 2 above, the present invention also provides an assembly process for a small diesel generator, the specific steps of which are as follows: S1. Place the diesel engine block 400 on the ground. Connect the four hooks 104 of the lifting module 100 to the lifting rings on the diesel engine block 400. Use the lifting equipment to gently lift the lifting module 100 to tighten the slings. Place a level on the upper surface of the support plate 101 and adjust the length of each bolt column 103 one by one to make the support plate 101 horizontal. Then tighten the locking nut 107 to complete the leveling of the lifting module 100.

[0038] S2. Fix the two sets of auxiliary adjustment modules 200 to the two long sides of the mounting base 300 respectively through the position fixing unit 203. According to the specifications of the diesel engine body 400, adjust the gripper unit 206 to the height range corresponding to the adjustment rods 105 on both sides of the lifting module 100 through the horizontal moving unit 202 and the vertical moving unit 205.

[0039] S3. The lifting equipment lifts the diesel engine body 400 above the mounting base 300, so that the adjusting rod 105 enters the opening area of ​​the gripper unit 206. The telescopic cylinder 2066 is activated to drive the second gripper arm 2063 to close to the first gripper arm 2062 and clamp the adjusting rod 105. At this time, the support plate 101 of the lifting module 100 returns to horizontal, and the diesel engine body 400 is adjusted to a position where its mounting foot plane is parallel to the plane of the buffer connecting seat 301.

[0040] S4. Start the vertical moving unit 205, drive the gripper unit 206 to descend vertically, and the bolt connecting foot of the diesel engine body 400 will land smoothly on the buffer connecting seat 301 of the mounting base 300, insert the bolt and tighten it.

[0041] S5. Telescopic cylinder 2066 drives the second clamping arm 2063 to release, and the lifting equipment removes the lifting module 100, completing the assembly of the diesel engine body 400. For the generator body 500, repeat steps S1 to S5, or use another set of leveled lifting modules of the corresponding specifications 100 for assembly, until the assembly of the entire small diesel generator set is completed.

[0042] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

Claims

1. An assembly system for small diesel generators, characterized by, include: The lifting module (100) has a hook (104) at its bottom for connecting to the lifting ring of the machine body. The hook (104) is installed on the lifting module (100) through an adjustable connector, so that the supporting surface of the lifting module (100) is in a horizontal state by adjusting the connector before the machine body is lifted off the ground. An adjusting rod (105) is provided on the side of the lifting module (100) extending outward. An auxiliary adjustment module (200) can be fixed to the side of the mounting base (300). The auxiliary adjustment module (200) is equipped with an openable gripper unit (206) and a vertical moving unit (205) that drives the gripper unit (206) to move vertically. When the machine body is hoisted above the mounting base (300), the gripper unit (206) is used to grip the adjusting rod (105) to keep the support surface of the lifting module (100) in a horizontal state. The vertical moving unit (205) is used to drive the gripper unit (206) to drive the lifting module (100) and the hoisted machine body to descend smoothly, so that the mounting feet of the machine body are aligned with the buffer connecting seat (301) on the mounting base (300).

2. The assembly system for a small diesel generator according to claim 1, characterized by, The lifting module (100) includes a support plate (101) and a load-bearing member (102) connected below the support plate (101). The adjustable length connector is a bolt column (103). The bottom end of the bolt column (103) is fixedly connected to the hook (104), and the top end is screwed into the threaded groove on the support plate (101) and locked by a lock nut (107).

3. The assembly system for a small diesel generator according to claim 2, characterized by, The load-bearing member (102) includes a first load-bearing rib (1021) and a second load-bearing rib (1022). The first load-bearing rib (1021) is located on both sides of the second load-bearing rib (1022), making the load-bearing member (102) as a whole I-shaped. The bolt column (103) passes through the two ends of the first load-bearing rib (1021). The top of the support plate (101) is provided with a hanging plate (106), and the lower end of the hanging plate (106) is fixedly connected to the top end of the second load-bearing rib (1022).

4. The assembly system for a small diesel generator according to claim 3, characterized by, The first load-bearing rib (1021) and the second load-bearing rib (1022) both have I-shaped cross sections, and the hanging plate (106) is also welded to the upper end face of the support plate (101) through a reinforcing plate.

5. The assembly system for a small diesel generator according to claim 2, wherein The adjusting rod (105) is disposed on both sides of the load-bearing material (102), and the axis of the adjusting rod (105) is perpendicular to the surface of the support plate (101).

6. The assembly system for a small diesel generator according to claim 5, wherein At least two adjusting rods (105) are provided and are symmetrically distributed on both sides of the lifting module (100).

7. The assembly system for a small diesel generator according to any one of claims 1 to 6, characterized by, The auxiliary adjustment module (200) also includes a movable base (201) and a vertical support column (204); the movable base (201) is provided with a position fixing unit (203) for fixing itself to the side of the mounting base (300); the vertical support column (204) is erected on the movable base (201), and the vertical moving unit (205) is installed on the vertical support column (204).

8. The assembly system for a small diesel generator according to claim 7, characterized by, The gripper unit (206) includes a support bracket (2061), a first gripper arm (2062) fixed in the support bracket (2061), a second gripper arm (2063) slidably disposed relative to the first gripper arm (2062), and a telescopic cylinder (2066) for driving the second gripper arm (2063) to slide; after the first gripper arm (2062) and the second gripper arm (2063) are closed, an annular clamping groove is formed to clamp the adjusting rod (105).

9. Assembly process for small diesel generators, using the assembly system for small diesel generators as claimed in claim 8, characterized in that, Includes the following steps: S1. Connect the hook (104) of the lifting module (100) to the lifting ring of the machine body placed on the ground. The lifting equipment gently lifts the lifting module (100). By adjusting the length of the connecting piece, the support surface of the lifting module (100) is adjusted to a horizontal state and locked. S2. Fix the auxiliary adjustment module (200) to the side of the mounting base (300) and adjust its gripper unit (206) to the preset height range; S3. The lifting equipment lifts the machine body to the top of the mounting base (300), so that the adjusting rod (105) enters the clamping range of the gripper unit (206). The gripper unit (206) clamps the adjusting rod (105), so that the support surface of the lifting module (100) is restored and kept horizontal, and the machine body is adjusted to the installation posture. S4. The vertical moving unit (205) drives the gripper unit (206) to move downward, guiding the mounting feet of the machine body to sit smoothly on the buffer connecting seat (301) of the mounting base (300), and completing the fixed connection after alignment.

10. The assembly process for a small diesel generator according to claim 9, characterized in that, When it is necessary to assemble two different specifications of engine blocks, namely diesel engine block (400) and generator block (500), prepare two sets of lifting tool modules (100) corresponding to the specifications of diesel engine block (400) and generator block (500) respectively, and both have completed the pre-leveling in step S1, so as to use them alternately during the assembly process and avoid repeatedly leveling the same lifting tool module (100).

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