CN112847215A - Adjustable positioning tool for engine assembly of large excavator - Google Patents
Adjustable positioning tool for engine assembly of large excavator Download PDFInfo
- Publication number
- CN112847215A CN112847215A CN202110007470.0A CN202110007470A CN112847215A CN 112847215 A CN112847215 A CN 112847215A CN 202110007470 A CN202110007470 A CN 202110007470A CN 112847215 A CN112847215 A CN 112847215A
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- China
- Prior art keywords
- welding body
- adjusting assembly
- positioning tool
- engine
- adjustable positioning
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- Pending
Links
- 238000003466 welding Methods 0.000 claims abstract description 41
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 description 8
- 238000009434 installation Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 244000304337 Cuminum cyminum Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H5/00—Tool, instrument or work supports or storage means used in association with vehicles; Workers' supports, e.g. mechanics' creepers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses an adjustable positioning tool for engine assembly of a large excavator, which comprises an underframe welding body, wherein a transverse adjusting assembly and a longitudinal adjusting assembly are arranged on the underframe welding body, the transverse adjusting assembly can transversely move along the underframe welding body, and the longitudinal adjusting assembly can longitudinally move along the underframe welding body; the bottom of the underframe welding body is provided with a movable wheel. The adjustable positioning tool has the advantages that the load is more than 4T, the automatic drag chain traction structure is provided, the supporting points are symmetrically adjusted through the trapezoidal screw, the structural strength is high, the distribution of the supporting positioning points is reasonable, the adjustment is quick, the connection rigidity is high, the stability is good, and the part assembly is convenient.
Description
Technical Field
The invention relates to an adjustable positioning tool for engine assembly of a large excavator, and belongs to the field of excavators.
Background
The existing trolley used for the engine part of the large excavator can only support the model A1-B1 Cummins, and for B2, C and newly-selected brand (platinum) engines, the original supporting point can not support the trolley, the maximum weight reaches 3.8T, and the trolley can not be pushed to move forwards on a steel rail by manpower; the engine assembly tool of the medium excavator has the defects that the distance and the height of a supporting point cannot be adjusted, and the universality is poor; in addition, the existing excavator engine assembling tool (trolley) adopts standard high-strength bearing directional and universal wheels, so that the height of the excavator engine assembling tool (trolley) is increased, and the installation of parts on the upper part of an engine is inconvenient.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an adjustable positioning tool for the engine part of a large excavator.
In order to achieve the purpose, the adjustable positioning tool for the engine part assembly of the large excavator comprises an underframe welding body, wherein a transverse adjusting assembly and a longitudinal adjusting assembly are mounted on the underframe welding body, the transverse adjusting assembly can transversely move along the underframe welding body, and the longitudinal adjusting assembly can longitudinally move along the underframe welding body;
the bottom of the underframe welding body is provided with a movable wheel.
As an improvement, a supporting rod is arranged on the transverse adjusting assembly.
As an improvement, the transverse adjusting assembly comprises a first transverse adjusting assembly and a second transverse adjusting assembly, wherein the first transverse adjusting assembly is provided with two first supporting rods, and the second transverse adjusting assembly is provided with two second supporting rods.
As a refinement, the moving wheels comprise universal wheels and directional wheels; four universal wheels are installed at two ends of the bottom of the underframe welding body, and two directional wheels are installed in the middle of the bottom.
As an improvement, two ends of the underframe welding body are respectively provided with a traction pin.
As an improvement, a detachable handrail is installed at one end of the underframe welding body.
As an improvement, an oil receiving box is arranged on the underframe welding body.
As an improvement, the bottom of the underframe welding body is provided with an optional part and a bolt storage area.
As an improvement, the underframe welding body is welded into a square frame by adopting a steel pipe.
Compared with the prior art, the adjustable positioning tool has the advantages that the load is more than 4T, the automatic floor-towing chain traction structure is provided, the supporting points are symmetrically adjusted through the trapezoidal screw, the structural strength is high, the supporting positioning points are distributed reasonably and are adjusted quickly, the connection rigidity is high, the stability is good, and the part installation is convenient.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the lateral adjustment assembly of the present invention;
FIG. 3 is a schematic structural view of a first support rod of the present invention;
FIG. 4 is a schematic structural view of a second support rod of the present invention;
FIG. 5 is a schematic view of the construction of the orientation wheel of the present invention;
FIG. 6 is a schematic view of the longitudinal adjustment assembly of the present invention;
in the figure: 1. the device comprises an underframe welding body, 2, a transverse adjusting assembly, 3, a longitudinal adjusting assembly, 4, two support rods, 5, an oil receiving box, 6, one support rod, 7, a traction pin, 8, a universal wheel, 9 and an orientation wheel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention.
As shown in fig. 1, 2, 3, 4, 5 and 6, the adjustable positioning tool for the engine assembly of the large excavator comprises an underframe welding body 1, wherein a transverse adjusting assembly 2 and a longitudinal adjusting assembly 3 are mounted on the underframe welding body 1, the transverse adjusting assembly 2 can move transversely along the underframe welding body 1, and the longitudinal adjusting assembly 3 can move longitudinally along the underframe welding body 1; the bottom of the underframe welding body 1 is provided with a movable wheel.
As a modification of the embodiment, the lateral adjustment assembly 2 is provided with a support rod.
As an improvement of the embodiment, the transverse adjusting assembly 2 comprises a first transverse adjusting assembly and a second transverse adjusting assembly, wherein the first transverse adjusting assembly is provided with two first supporting rods 6, and the second transverse adjusting assembly is provided with two second supporting rods 4. The four-point supporting structure is adopted, the weak oil pan (not allowed to be supported) of the engine is avoided, the engine support of multiple machine types of the large excavator can be effectively met, the relative distance of the four supporting points is symmetrically adjustable, one side of the supporting point is fixed in height, and the other side of the supporting point is adjustable in height.
As a modification of the embodiment, the moving wheels include a universal wheel 8 and a directional wheel 9; four universal wheels 8 are installed at two ends of the bottom of the underframe welding body 1, and two directional wheels 9 are installed in the middle of the bottom. The moving wheel is a high-bearing heavy wheel for a forklift and can support a part with the total weight of 4T.
As an improvement of the embodiment, two ends of the underframe welding body 1 are respectively provided with a traction pin 7, the chain can move forwards along with the ground under the traction of the traction pins 7, the rear part of the pin taking part can be loaded and can turn freely, and the wire returning part returns to the wire loading head manually; the detachable handrail is installed to the one end of chassis welding body 1.
As an improvement of the embodiment, an oil receiving box 5 is arranged on the underframe welding body 1, and an optional part and a bolt storage area are arranged at the bottom of the underframe welding body 1. The assembly height satisfies the ergonomic.
As a modification of the embodiment, the underframe welding body 1 is welded into a square frame by using a steel pipe.
The adjustable positioning tool has the self weight of 500kg, selects a high-bearing heavy wheel (the directional wheel 9 bears 1700kg, the universal wheel bears 500kg, and the wheel diameter is only 75mm), is additionally provided with a special positioning block (the supporting area is small, the pin hole positioning is increased, and the safety is improved), ensures that the middle is symmetrically and oppositely adjusted through a forward and reverse rotating trapezoidal screw rod and a longitudinal sliding block through transverse and height distance adjustment, ensures that the relative distances of four supporting points are centrosymmetric, is simple and convenient to adjust, positions an A1-B1 Kongmings engine through a pin, positions the C engine through a hole, and supports and positions through four points. The front traction pin and the rear traction pin 7 are connected with the drag chain, so that braking can be realized, and the forward stability of the tool is ensured. The tool is compact in design structure, the requirement for line feeding and returning is met, the handrail of the underframe welding body 1 is made to be detachable, and part of process requirements (the fan of part of products and the handrail of which the tool needs to be detached during installation of the front supporting legs) are facilitated. The bottom sets up the storage area of selecting accessories, bolt, connects oil box 5 etc. and the chassis width satisfies the operation that the workman ascended.
The adjustable positioning tool meets the harsh supporting conditions of the engine (the engine oil bottom shell cannot be supported, the supporting area is small, the weight is too heavy, the starting and braking inertia is large), the supporting stress is reasonable, compared with the tool for mounting small and medium-sized engines, the adjustable positioning tool has the advantages that the pin and bolt positioning structure is added, the supporting surface can be improved by adopting a compressible polyurethane plate for uneven supporting surfaces of the engine, the supporting risk is reduced, and the reliability of the tool is improved. Main parts and the major structure on the frock pass through the little clearance processing slider and realize that the engine supports spacingly, have reliable stability, and the horizontal adjusting assembly 2 directly sits on chassis welded body 1, and chassis welded body 1, bracing piece adopt the thick wall steel pipe, satisfy main stress area, bear and draw, compressive stress and impact load. Each part has the detachability, makes things convenient for frock maintenance and regulation, reduces the product and remodels improvement cost.
The adjustable positioning tool is convenient for adjusting the supporting distance and placing an engine. When an engine is placed, firstly, the distance and the height rationality of the four supporting points are confirmed according to the model of the engine, a positioning accessory is inserted, the front traction pin 7 and the rear traction pin 7 are inserted into a ground drag chain, a tool is fixed, the engine is hoisted in a flat mode, the engine is located on a supporting rod of the tool, and the compaction of the four supporting points and the consistency of the heights of the symmetrical points are confirmed. Compared with the original engine assembly tool of the excavator plant, the support adjustability of engines of different models is improved, the chassis strength is enhanced, the requirements of towing and partial assembly height of the ground towing chain are met, the high-altitude installation can be met by matching with a two-step ascending ladder, the support problem existing when engines of various models share one set of tool is solved, the process content is decomposed, the working efficiency is improved, the workload is met, and the labor intensity is reduced.
When the tool is used, the tool pushes the engine part to be assembled to a line end, the traction pin 7 is inserted into a hole of the towing chain from front to back, the distance between four points is determined according to the supporting scheme of the engine model, the relative distance between the transverse adjusting assembly 2 and the longitudinal adjusting assembly 3 is preset, the engine is hoisted, the traction pin 7 is firstly installed, then the distance between the transverse adjusting assembly 2 and the longitudinal adjusting assembly 3 and the heights of the supporting rod two 4 and the supporting rod one 6 are finely adjusted, so that the engine is stably located on the tool, and the limiting pin and the bolt are additionally arranged for the A1 engine and the C engine, so that the engine is supported more safely, and the requirements of assembling components such as a transfer case, a pump, a.
The supporting surface of the engine can only select a non-oil pan, the supporting legs of the engine are not affected, the height of the supporting surface needs to take into consideration the oil drain valve and the oil pan, and meanwhile, when other parts of the engine are arranged on the rear portion of an upper line of the whole tool, the height of the tool accords with human engineering, wheels are changed into small diameters (the diameter is 75mm, the assembling height of workers is reduced), the tool has a high bearing function (the bearing capacity of a directional wheel is 1700kg, double wheels for a forklift are adopted, and the bearing capacity of a universal wheel is 500kg), the supporting and flowing of the total weight of 3800kg after the engine of each type is assembled can be guaranteed, the compact design of the tool is guaranteed.
The adjustable positioning tool of the invention ensures that the stress of the second supporting rod 4 and the first supporting rod 6 of the engine and the tool is stable and reasonable, a trapezoidal screw (with a centrosymmetric design and positive and negative rotation) is designed, the relative distance between the two supporting rods can be quickly adjusted by screwing the long screw head of the transverse adjusting assembly 2 or the middle processing surface of the second supporting rod 4 by a special wrench, the two ends of the screw adopt bearings to ensure more flexible adjustment, the sliding (manual pushing) and the positioning of the sliding block are realized by unscrewing or screwing the positioning bolt longitudinally through the sliding block, the main adjusting parts (the sliding block, the screw, the nut, the bearing seat, the bottom sliding plate and the like) are formed by finely processing a No. 45 thick plate piece, heat treatment and fine assembly are required, the adjustable positioning tool has wear resistance, the screw and the bearings are regularly smeared with machine oil for lubrication, the bottom frame adopts a thick-wall pipe, the screw installation can be dismantled, adjust, the singleton is maintained, is changed, avoids adjustment support (like cutting, welding) to cause frock intensity impaired when later stage frock is changed.
The adjustable positioning tool is convenient to quickly thread and assemble in a supporting and adjusting mode. The adjustable engine support device is suitable for various engine support forms, the adjustment range meets the product requirements of a large excavator assembly line, and the support is reasonable, stable, safe and reliable. Compared with other engine supporting modes, the automatic flow part assembly device has the advantages that the supporting point is adjustable, the adjusting range is large, the bearing is large, the automatic flow part assembly of the engine is realized by combining with the automatic floor towing chain, the workload of adjusting and tool changing is reduced, the line returning and advancing difficulty of the tool is solved, meanwhile, the height of each part of the part assembly is ensured to be in accordance with the man-machine engineering, the part assembly content can be decomposed, the assembly efficiency is improved, and the labor intensity is reduced.
The specific supporting and adjusting scheme for the engine assembly tools of the large excavators with different models is as shown in the following table 1.
Table 1 supporting and adjusting scheme for engine part assembly tool
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. The adjustable positioning tool for the engine assembly of the large excavator is characterized by comprising an underframe welding body (1), wherein a transverse adjusting assembly (2) and a longitudinal adjusting assembly (3) are installed on the underframe welding body (1), the transverse adjusting assembly (2) can transversely move along the underframe welding body (1), and the longitudinal adjusting assembly (3) can longitudinally move along the underframe welding body (1);
the bottom of the underframe welding body (1) is provided with a movable wheel.
2. The adjustable positioning tool for the engine part of the large excavator as claimed in claim 1, wherein a support rod is arranged on the transverse adjusting assembly (2).
3. The adjustable positioning tool for the engine assembly of the large excavator as claimed in claim 2, wherein the transverse adjusting assembly (2) comprises a first transverse adjusting assembly and a second transverse adjusting assembly, the first transverse adjusting assembly is provided with two first supporting rods (6), and the second transverse adjusting assembly is provided with two second supporting rods (4).
4. The adjustable positioning tool for large excavator engine parts according to claim 1, characterized in that the moving wheels comprise universal wheels (8) and directional wheels (9);
four universal wheels (8) are installed at the bottom both ends of the chassis welding body (1), and two directional wheels (9) are installed in the middle of the bottom.
5. The adjustable positioning tool for the engine part of the large excavator as claimed in claim 1, wherein the two ends of the underframe welding body (1) are respectively provided with a traction pin (7).
6. The adjustable positioning tool for the engine part of the large excavator as claimed in claim 1, wherein a detachable handrail is installed at one end of the underframe welding body (1).
7. The adjustable positioning tool for the engine part of the large excavator as claimed in claim 1, wherein the chassis welding body (1) is provided with an oil receiving box (5).
8. The adjustable positioning tool for the engine part of the large excavator as claimed in claim 1, wherein an optional part and a plug pin storage area are arranged at the bottom of the underframe welding body (1).
9. The adjustable positioning tool for the engine part of the large excavator as claimed in claim 1, wherein the underframe welding body (1) is welded into a square frame by using a steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110007470.0A CN112847215A (en) | 2021-01-05 | 2021-01-05 | Adjustable positioning tool for engine assembly of large excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110007470.0A CN112847215A (en) | 2021-01-05 | 2021-01-05 | Adjustable positioning tool for engine assembly of large excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112847215A true CN112847215A (en) | 2021-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110007470.0A Pending CN112847215A (en) | 2021-01-05 | 2021-01-05 | Adjustable positioning tool for engine assembly of large excavator |
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| Country | Link |
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| CN (1) | CN112847215A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114275079A (en) * | 2021-12-30 | 2022-04-05 | 重庆长安汽车股份有限公司 | Rapid leveling assembly tool and assembly method for power assembly and automobile |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1459123A (en) * | 1973-08-22 | 1976-12-22 | Etpm | Methods of and devices for simulating the orbital welding of tubular members in a fixed position |
| EP0371292A2 (en) * | 1988-11-19 | 1990-06-06 | Hans-Adolf Schmidt | Device for positioning a work piece |
| CN208811416U (en) * | 2018-07-17 | 2019-05-03 | 山东理工职业学院 | Adjustable positioner |
| CN209811584U (en) * | 2019-04-22 | 2019-12-20 | 溧阳市盛杰机械有限公司 | Welding equipment for producing large hydraulic excavator frame |
| CN111168314A (en) * | 2020-04-01 | 2020-05-19 | 刘争 | Full-automatic welding tool for excavator movable arm assembly |
| CN211387481U (en) * | 2019-12-12 | 2020-09-01 | 大连川锦科技有限公司 | Subassembly welding jig |
-
2021
- 2021-01-05 CN CN202110007470.0A patent/CN112847215A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1459123A (en) * | 1973-08-22 | 1976-12-22 | Etpm | Methods of and devices for simulating the orbital welding of tubular members in a fixed position |
| EP0371292A2 (en) * | 1988-11-19 | 1990-06-06 | Hans-Adolf Schmidt | Device for positioning a work piece |
| CN208811416U (en) * | 2018-07-17 | 2019-05-03 | 山东理工职业学院 | Adjustable positioner |
| CN209811584U (en) * | 2019-04-22 | 2019-12-20 | 溧阳市盛杰机械有限公司 | Welding equipment for producing large hydraulic excavator frame |
| CN211387481U (en) * | 2019-12-12 | 2020-09-01 | 大连川锦科技有限公司 | Subassembly welding jig |
| CN111168314A (en) * | 2020-04-01 | 2020-05-19 | 刘争 | Full-automatic welding tool for excavator movable arm assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114275079A (en) * | 2021-12-30 | 2022-04-05 | 重庆长安汽车股份有限公司 | Rapid leveling assembly tool and assembly method for power assembly and automobile |
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Application publication date: 20210528 |