Adjusting auxiliary tool for low-speed diesel engine

By designing a two-way lead screw and a limiting mechanism, the problems of slow processing speed and inaccurate precision in the auxiliary tooling for adjusting low-speed diesel engines are solved, achieving precise adjustment and improved stability, and extending service life.

CN121595209APending Publication Date: 2026-03-03HUDONG HEAVY MACHINERY
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Patent Information

Application Number
CN202411114952.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-08-14
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

The existing auxiliary tooling for adjusting low-speed diesel engines adjusts the height by adding a feinner plate, which affects the processing speed and accuracy, and the operation is cumbersome and the accuracy is easily variable.

Method used

It adopts a two-way lead screw and limit mechanism design, combined with scale lines and anti-oxidation paint, to achieve precise calibration and limit, avoiding repeated adjustments.

Benefits of technology

It improves processing efficiency and precision, reduces pollution, extends equipment life, and enhances stability and safety.

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Abstract

The invention relates to the technical field of diesel engine adjusting auxiliary tools, and discloses a low-speed diesel engine adjusting auxiliary tool which comprises a base, the two ends of the base are connected with bottom arms through hinges, the tops of the outer sides of the bottom arms are connected with supporting mechanisms through hinges, and the tops of the supporting mechanisms are connected with top arms through hinges; the tops of the two top arms are connected with a top base through double-end hinges, the supporting mechanism comprises a two-way lead screw, and scale marks are assembled on the outer portion of the two-way lead screw. According to the low-speed diesel engine calibration auxiliary tool, through the additionally-arranged limiting mechanism, the position of the two-way lead screw is automatically limited after the two-way lead screw rotates, rotation of the two-way lead screw after movement is avoided, and compared with a traditional mode that the height is repeatedly adjusted through a gasket, operation of the scheme is more convenient and accurate; and meanwhile, through the additionally arranged limiting mechanism, the device is prevented from returning after moving, and the overall stability and safety of the device are improved.
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Description

Technical Field

[0001] This invention relates to the field of auxiliary tooling technology for diesel engine calibration, specifically to an auxiliary tooling for calibrating a low-speed diesel engine. Background Technology

[0002] The high-speed diesel engine production workshop is the production site for diesel engines, where inputs are transformed into outputs, creating production value, and is the core of the production enterprise's operations. During on-site parts processing, the low-speed diesel engine parts need to be adjusted. Because these parts are large and heavy, and involve processing at multiple workstations, repeated driving of the diesel engine parts is required. Existing low-speed diesel engine adjustment auxiliary tooling requires the addition of shims to adjust the height of the parts, which affects processing speed and is overly cumbersome. Furthermore, the shims become compressed by the diesel engine parts, altering their precision and affecting processing accuracy. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this invention provides an auxiliary tooling for adjusting the height of low-speed diesel engines, thereby solving the technical problems mentioned above, such as the impact on processing speed caused by adding a shim to adjust the height of parts, the excessively cumbersome operation, and the change in precision of the shim after being squeezed by the diesel engine parts, which affects the processing accuracy.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary tooling for adjusting a low-speed diesel engine, comprising: a base, both ends of the base being hinged to bottom arms, the outer top of the bottom arms being hinged to a support mechanism, the top of the support mechanism being hinged to a top arm, and the tops of the two top arms being hinged to a top seat.

[0007] The support mechanism includes a double-acting lead screw, and the double-acting lead screw is equipped with scale lines on its exterior. Nuts are threaded to both sides of the double-acting lead screw, and mounting seats are sleeved on the exterior of the nuts. The interior of the mounting seats is connected to a hinge. Spherical bearings are sleeved at both ends of the double-acting lead screw, and L-shaped arms are connected to the bottom of the spherical bearings.

[0008] The external sleeve of the bidirectional lead screw is fitted with a limiting mechanism, which includes a chuck and a hollow column. The chuck is evenly provided with slots on its outer side. The bottom of the hollow column is connected to a second telescopic rod, which is connected to a base. A trapezoidal block is slidably connected to the outside of the hollow column. A spring is connected between the trapezoidal block and the hollow column. The second telescopic rod is connected to an L-shaped arm.

[0009] Preferably, both sides of the base are connected to a first telescopic rod, and the top of the first telescopic rod is connected to the top seat, and the first telescopic rod guides the top seat to move linearly.

[0010] Preferably, the top of the top seat is equipped with a load-bearing seat, and the load-bearing seat has a groove inside, which can limit and support the diesel engine parts.

[0011] Preferably, the bidirectional lead screw is externally connected to a torsion wheel, and the torsion wheel has anti-slip grooves on its outer surface. The torsion wheel facilitates driving the bidirectional lead screw to rotate and transmit power to the nut.

[0012] Preferably, the bidirectional lead screw has threads on both sides, and the threads on both sides rotate in opposite directions. The bidirectional lead screw can drive the two nuts to move relative to each other or move away from each other by rotating.

[0013] Preferably, both the second telescopic rod and the first telescopic rod include a sliding arm, and a sliding rod is slidably connected to the top of the sliding arm. The sliding rod, in conjunction with the sliding arm, allows the second telescopic rod and the first telescopic rod to extend and retract.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, the present invention provides an auxiliary tooling for adjusting a low-speed diesel engine, which has the following beneficial effects:

[0016] This low-speed diesel engine calibration auxiliary fixture achieves precise calibration of the support mechanism through scale lines added to the outside of the double-acting lead screw, avoiding repeated calibration before processing and improving work efficiency. At the same time, the anti-oxidation paint sprayed on the entire exterior of the device prevents contamination of diesel engine parts during processing, thereby extending the overall service life of the device. The added limiting mechanism automatically limits the position of the double-acting lead screw after it has rotated, preventing it from rotating back after movement. Compared with the traditional method of repeatedly adjusting the height using shims, this design is more convenient and precise. Furthermore, the added limiting mechanism prevents the device from returning to its original position after movement, improving the overall stability and safety of the device. Attached Figure Description

[0017] Figure 1 This is a front view of the present invention;

[0018] Figure 2 This is a front view of the support mechanism of the present invention;

[0019] Figure 3 This is a side sectional view of the limiting mechanism of the present invention.

[0020] In the diagram: 1. Base; 2. Base arm; 3. Support mechanism; 31. Double-acting lead screw; 32. Nut; 33. Assembly seat; 34. Torsion wheel; 35. Spherical bearing; 36. L-shaped arm; 4. Top arm; 5. Top seat; 51. Load-bearing seat; 52. First telescopic rod; 6. Limiting mechanism; 61. Chuck; 62. Slot; 63. Hollow column; 64. Second telescopic rod; 65. Trapezoidal block; 66. Spring. Detailed Implementation

[0021] 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.

[0022] This invention provides a technical solution; please refer to [link / reference]. Figure 1 A low-speed diesel engine calibration auxiliary tooling includes: a base 1, with bottom arms 2 connected to both ends of the base 1 via hinges, the bottom arms 2 supporting a support mechanism 3, the outer top of the bottom arms 2 being connected to the support mechanism 3 via hinges, the support mechanism 3 supporting a top arm 4, and the top of the support mechanism 3 being connected to the top arm 4 via hinges.

[0023] The top arm 4 can drive the top seat 5. The top of the two top arms 4 are connected to the top seat 5 by a double-headed hinge. The top seat 5 can support the diesel engine parts. The two sides of the base 1 are connected to the first telescopic rod 52, and the top of the first telescopic rod 52 is connected to the top seat 5. The first telescopic rod 52 guides the top seat 5 to move linearly. The top of the top seat 5 is equipped with a load-bearing seat 51. The load-bearing seat 51 has a groove inside. The load-bearing seat 51 can limit and support the diesel engine parts.

[0024] Please see Figure 2 and Figure 3 The support mechanism 3 includes a bidirectional lead screw 31, which can drive the nut 32. The bidirectional lead screw 31 is equipped with scale lines on its exterior. Nuts 32 are threaded to both sides of the bidirectional lead screw 31. A mounting seat 33 is sleeved on the exterior of the nut 32. The mounting seat 33 can support the top arm 4 and the bottom arm 2. The interior of the mounting seat 33 is connected to a hinge. Both ends of the bidirectional lead screw 31 are sleeved with spherical bearings 35. The spherical bearings 35 can drive the second telescopic rod 64 to move together through the L-shaped arm 36.

[0025] The bottom of the spherical bearing 35 is connected to an L-shaped arm 36, and the outside of the double-acting screw 31 is connected to a torsion wheel 34. The outside of the torsion wheel 34 is provided with anti-slip texture. The torsion wheel 34 facilitates the rotation of the double-acting screw 31 to transmit power to the nut 32. Both sides of the double-acting screw 31 are provided with threads, and the threads on both sides are turned in opposite directions. The double-acting screw 31 can drive the two nuts 32 to move relative to each other or move away from each other by rotating.

[0026] A limiting mechanism 6 is sleeved on the outside of the bidirectional lead screw 31. The limiting mechanism 6 includes a chuck 61 and a hollow column 63. The chuck 61 can move with the bidirectional lead screw 31. The outside of the chuck 61 is evenly provided with slots 62. The slots 62 can be inserted by trapezoidal blocks 65 to limit the position of the chuck 61. The bottom of the hollow column 63 is connected to a second telescopic rod 64, which can support the hollow column 63.

[0027] The second telescopic rod 64 is connected to the base 1. A trapezoidal block 65 is slidably connected to the outside of the hollow column 63. The top of the trapezoidal block 65 is designed with a slope, which allows the trapezoidal block 65 to restrict the rotation of the chuck 61 and the bidirectional lead screw 31. A spring 66 is connected between the trapezoidal block 65 and the hollow column 63. The second telescopic rod 64 is connected to the L-shaped arm 36. Both the second telescopic rod 64 and the first telescopic rod 52 include a sliding arm. A sliding rod is slidably connected to the top of the sliding arm. The sliding rod, in conjunction with the sliding arm, allows the second telescopic rod 64 and the first telescopic rod 52 to extend and retract.

[0028] This scheme first places the diesel engine parts on top of the support seat 51. Rotating the torsion wheel 34 drives the double-acting screw 31 to rotate, which in turn drives the two nuts 32 and the mounting base 33 to move relative to each other, thereby driving the top arm 4 to drive the top seat 5 and the support seat 51 to rise. The height of the top seat 5 is controlled by the scale lines on the outside of the double-acting screw 31. At the same time, when the double-acting screw 31 moves, it drives the limiting mechanism 6 to move together, which in turn drives the trapezoidal block 65 to insert into the inside of the slot 62, limiting the chuck 61 and preventing the chuck 61 and the double-acting screw 31 from rotating back, which would cause the height of the top seat 5 to change. At the same time, when it is necessary to return the support mechanism 3 to its original position, the trapezoidal block 65 is pressed to return it to its original position, and then the limiting mechanism 6 is rotated to return the entire device to its original position, completing the overall return of the device.

[0029] The scale lines added to the outside of the bidirectional lead screw 31 enable precise adjustment of the support mechanism 3, avoiding repeated adjustments before processing and improving work efficiency. At the same time, the anti-oxidation paint sprayed on the entire exterior of the device prevents contamination of diesel engine parts during processing, thereby improving the overall service life of the device. The added limiting mechanism 6 automatically limits the position of the bidirectional lead screw 31 after it has rotated, preventing it from rotating back after movement. Compared with the traditional method of repeatedly adjusting the height using shims, this method is more convenient and precise. The added limiting mechanism 6 also prevents the device from returning to its original position after movement, improving the overall stability and safety of the device.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An auxiliary tooling for adjusting a low-speed diesel engine, comprising: The base (1) is characterized in that: both ends of the base (1) are connected to the bottom arm (2) by hinges, the top of the outer side of the bottom arm (2) is connected to the support mechanism (3) by hinges, the top of the support mechanism (3) is connected to the top arm (4) by hinges, and the tops of the two top arms (4) are connected to the top seat (5) by double-headed hinges. The support mechanism (3) includes a double-acting lead screw (31), and the double-acting lead screw (31) is equipped with scale lines on the outside. Nuts (32) are threaded to both sides of the double-acting lead screw (31). A mounting seat (33) is sleeved on the outside of the nut (32). The inside of the mounting seat (33) is connected to a hinge. Spherical bearings (35) are sleeved at both ends of the double-acting lead screw (31). An L-shaped arm (36) is connected to the bottom of the spherical bearing (35). The external sleeve of the bidirectional lead screw (31) is fitted with a limiting mechanism (6), which includes a chuck (61) and a hollow column (63). The chuck (61) has grooves (62) evenly distributed on its exterior. The bottom of the hollow column (63) is connected to a second telescopic rod (64), which is connected to the base (1). A trapezoidal block (65) is slidably connected to the outside of the hollow column (63). A spring (66) is connected between the trapezoidal block (65) and the hollow column (63). The second telescopic rod (64) is connected to the L-shaped arm (36).

2. The auxiliary tooling for adjusting a low-speed diesel engine according to claim 1, characterized in that: Both sides of the base (1) are connected to the first telescopic rod (52), and the top of the first telescopic rod (52) is connected to the top seat (5).

3. The auxiliary tooling for adjusting a low-speed diesel engine according to claim 1, characterized in that: The top of the top seat (5) is fitted with a load-bearing seat (51), and the load-bearing seat (51) has a groove inside.

4. The auxiliary tooling for adjusting a low-speed diesel engine according to claim 1, characterized in that: The external connection of the bidirectional lead screw (31) is a torsion wheel (34), and the external surface of the torsion wheel (34) is provided with anti-slip texture.

5. The auxiliary tooling for adjusting a low-speed diesel engine according to claim 1, characterized in that: The two-way lead screw (31) has threads on both sides, and the threads on both sides rotate in opposite directions.

6. The auxiliary tooling for adjusting a low-speed diesel engine according to claim 1, characterized in that: Both the second telescopic rod (64) and the first telescopic rod (52) include a sliding arm, and a sliding rod is slidably connected to the top of the sliding arm.