Ultra-large speed reducer assembling, positioning and adjusting device

Abstract

The utility model discloses an ultra-large speed reducer assembly positioning and adjusting device, which relates to the technical field of speed reducer positioning and assembly and comprises a support and a plurality of positioning and adjusting mechanisms mounted on the support, each positioning and adjusting mechanism comprises an adjusting arm, a positioning sleeve is fixed at one arm end of each adjusting arm, and the positioning sleeves are fixed at the other arm ends of the adjusting arms. The positioning sleeve is matched with a speed reducer connecting hole, a threaded hole perpendicular to the axis of the positioning sleeve is formed in the end, away from the positioning sleeve, of the adjusting arm, an adjusting rod is screwed in the threaded hole, and the adjusting rod can be rotated to move axially. When an ultra-large speed reducer is assembled, a center line or an alignment line of a part can be adjusted to be qualified, and the requirement for coaxiality assembly of the speed reducer and a winding drum is met.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer positioning and assembly technology, and in particular to a positioning and adjustment device for assembling an ultra-large speed reducer. Background Technology

[0002] In the installation of reducers for ship lifts and large gate hoists, the coaxiality requirement between the drum and the reducer is high after installation. Due to the large size, heavy weight, and difficulty in adjustment of the reducer and drum, the positioning, assembly, and testing of the reducer are challenging. The assembly of the reducer should strictly follow the original data and benchmarks provided by the manufacturer to ensure that its technical condition fully matches its original assembly state at the time of manufacturing. The reducer should be positioned according to the established benchmark lines, hoisted onto the frame, and precisely adjusted. During the hoisting of the reducer, it should be lifted slowly and placed carefully, using the lifting lugs on the lower housing.

[0003] Technical requirements for the installation and assembly of the reducer: 1) The reducer support should be positioned and leveled strictly according to the layout of the general drawing, controlling the longitudinal axis spacing and the transverse axis spacing, and adjusting them to the corresponding height. 2) The reducer and the reducer support should be reliably connected with bolts. The housing should be installed according to the reducer manufacturer's installation positioning coordinates. The coaxiality of the reducer and the drum should be adjusted and tightened with bolts.

[0004] Chinese patent document CN216229082U, published on November 29, 2021, discloses a user-friendly positioning device for assembling a speed reducer. The device includes a base and a platform positioned above the base. A guide rail is provided on the platform, containing a first slider and a second slider that can slide along it. A mounting plate is fixed above the first slider, and a first screw is fixed above the second slider. A positioning plate is mounted on the first screw, with a positioning hole in the center. The positioning plate can move up and down along the first screw, and a fastening nut is located below the positioning plate. A lead screw parallel to the guide rail is provided, with the first slider threadedly engaging with the lead screw. A first handle is located at the end of the lead screw. This design allows for precise adjustment of the speed reducer's height, and the installation equipment can be quickly aligned with the speed reducer's transmission axis, improving assembly efficiency.

[0005] However, this solution only involves aligning the center axis of the reducer and the installation equipment. For the precise positioning of ultra-large reducers and large drums, such as those used in ship lifts and large gate hoists, the precise positioning and fixation of the reducer are crucial. For example, existing adjustment and positioning methods include using welding auxiliary baffles, which have disadvantages such as welding and cutting affecting product quality and inconvenience in positioning and adjustment. Furthermore, due to space limitations, only small jacks and other tools can be used to adjust the parts, making it difficult to apply to adjusting ultra-large and ultra-heavy parts. Utility Model Content

[0006] In view of the shortcomings of the existing technology involving the positioning and assembly of large reducers, the present invention provides an ultra-large reducer assembly positioning and adjustment device that can be used for large reducers and drums to be assembled.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a positioning and adjustment device for assembling an ultra-large reducer, comprising a support and multiple positioning and adjustment mechanisms installed on the support. The positioning and adjustment mechanism includes an adjusting arm, one end of which is fixed with a positioning sleeve. The positioning sleeve is adapted to the reducer connection hole. The end of the adjusting arm away from the positioning sleeve is provided with a threaded hole perpendicular to the axis of the positioning sleeve. An adjusting rod is screwed into the threaded hole, and the adjusting rod can be rotated to achieve axial movement.

[0008] Furthermore, a handle is connected to the outer side of the adjusting rod.

[0009] Furthermore, the end of the adjusting rod near the support has a contact point that contacts the side wall of the support.

[0010] Furthermore, the end of the adjusting rod near the support is hemispherical.

[0011] Furthermore, the diameter of the end of the positioning sleeve near the support gradually decreases along the axial direction, forming a frustum-shaped guide portion.

[0012] Furthermore, the height of the guide portion is less than or equal to the depth of the connecting hole.

[0013] Furthermore, the adjusting arm is L-shaped.

[0014] Furthermore, the upper surface of the support is machined to form a horizontal reference plane.

[0015] Furthermore, the positioning sleeve has a positioning hole extending axially through it.

[0016] In summary, this utility model has the following beneficial effects:

[0017] (1) The positioning sleeve of the positioning adjustment mechanism is inserted into the hole of the reducer base to achieve initial positioning. By adjusting the adjustment rod on one side of the support and the adjustment rod on the other side of the support, the axial fine adjustment is carried out, which drives the reducer to move flexibly on the support. In this way, multiple positioning adjustment mechanisms can be operated easily and efficiently to accurately adjust the position of the large reducer on the support, so that the position of the reducer can be adjusted and fixed based on the reference line of the support to achieve the coaxiality requirement of the assembly with the drum.

[0018] (2) It is easier to ensure the high coaxiality requirements of the drum and reducer after installation in the installation of the ship lift reducer and the large gate hoist reducer. The installation benchmark is established by the base machining surface. The reducer is closely matched with the support by the positioning adjustment mechanism to quickly determine the accurate benchmark line and provide a reliable reference for subsequent adjustment. As the adjustment process progresses, when the position of the reducer on the support is adjusted and determined by the positioning adjustment mechanism, the position of the reducer can be fixed, so as to meet the coaxial assembly of the drum and the reducer.

[0019] (3) The positioning adjustment mechanism has the advantage of strong adaptability. The device has a simple structure. Depending on the type and specifications of the reducer, steel plates, steel pipes and adjusting screws of different sizes and strengths can be selected for the matching positioning adjustment mechanism. This can broaden the application range and make it suitable for production lines, water conservancy hubs and heavy industrial scenarios. Attached Figure Description

[0020] Figure 1 Front view of the assembly of a large reducer and positioning adjustment device.

[0021] Figure 2 A top view of the assembly of a large speed reducer and positioning adjustment device.

[0022] Figure 3 A side view of the assembly of a large speed reducer and positioning adjustment device.

[0023] Figure 4 To adjust the main view of the mechanism.

[0024] The reference numerals in the attached drawings are explained as follows: 1. Support; 2. Positioning and adjustment mechanism; 21. Adjusting arm; 211. Threaded hole; 22. Positioning sleeve; 221. Guide part; 222. Positioning hole; 23. Adjusting rod; 24. Handle. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the embodiments.

[0026] Example 1:

[0027] In practical implementation: such as Figures 1 to 4 As shown, an assembly positioning and adjustment device for an ultra-large reducer includes a support 1 and multiple positioning and adjustment mechanisms 2 mounted on the support 1. Each positioning and adjustment mechanism 2 includes an adjusting arm 21. One end of the adjusting arm 21 is fixed with a positioning sleeve 22, which is adapted to the connection hole of the large reducer. The other end of the adjusting arm 21 is perpendicular to the positioning sleeve 22 and is equipped with an adjusting rod 23. The adjusting rod 23 is axially aligned with the side wall of the support 1 and can move axially.

[0028] During implementation, the upper surface of support 1 is machined to form a horizontal reference plane to support the large reducer. Positioning sleeve 22 is precisely inserted into the hole in the reducer base, serving as the initial positioning reference. Simultaneously, the adjusting rod on one side of support 1 is cleverly utilized, and coordinated with the adjusting rod on the other side, for fine axial adjustment, enabling the reducer to move flexibly between the two sides of support 1.

[0029] In this way, during assembly with the sleeve, multiple positioning and adjustment mechanisms 2 are distributed on both sides of the support 1, and the movement direction of the reducer between the two adjustment mechanisms is perpendicular to the axis of the sleeve. Therefore, when adjusting the coaxiality, based on the reference plane of the support 1, only the reducer needs to be adjusted left and right relative to the sleeve, without the need for vertical movement. Operators can easily and efficiently adjust the position of the large reducer on the support 1 by simply following the standardized procedure. Through repeated positioning, measurement, and adjustment, the reducer is ensured to reach the optimal state based on the reference line of the support 1, ultimately meeting the coaxiality requirements of the drum assembly, thus improving the accuracy and efficiency of the assembly.

[0030] The adjusting arm 21 is L-shaped. The end of the adjusting arm 21 furthest from the positioning sleeve 22 has a threaded hole 211 perpendicular to the axis of the positioning sleeve 22. The axes of the positioning sleeve 22 and the adjusting rod 23 are perpendicular. The adjusting rod 23 is screwed into the threaded hole 211 and can move axially by rotating it until it contacts the side wall of the support 1 and is positioned. A handle 24 is connected to the outside of the adjusting rod 23, and the handle 24 can be connected to the adjusting rod 23 by bolts.

[0031] Example 2:

[0032] In practical implementation: such as Figures 1 to 4 As shown, the device includes a support 1 and multiple positioning and adjustment mechanisms 2 mounted on the support 1. Each positioning and adjustment mechanism 2 includes an adjusting arm 21, with a positioning sleeve 22 fixed to one end of the adjusting arm 21. The positioning sleeve 22 is adapted to the reducer connection hole. The end of the adjusting arm 21 away from the positioning sleeve 22 has a threaded hole 211 perpendicular to the axis of the positioning sleeve 22. An adjusting rod 23 is screwed into the threaded hole 211 and can be rotated axially until it contacts the side wall of the support 1 and achieves positioning. A handle 24 is connected to the outside of the adjusting rod 23, and the handle 24 and the adjusting rod 23 can be connected by bolts.

[0033] The end of the adjusting rod 23 near the support 1 has a contact point that contacts the side wall of the support 1. In practice, this end is hemispherical. When axial movement is performed by rotating the adjusting rod 23, the contact point can precisely abut against the side wall of the support 1, forming a stable and reliable support point. This not only efficiently transmits the axial thrust of the adjusting rod 23 to the support 1, converting it into a precise position adjustment force for the reducer, but also effectively avoids shaking and displacement during the adjustment process due to the close contact between the contact point and the side wall of the support 1, ensuring that every adjustment action is accurate.

[0034] The diameter of the locating sleeve 22 near the support 1 gradually tapers axially, forming a frustum-shaped guide portion 221. Simultaneously, the height of the guide portion 221 is less than or equal to the depth of the connecting hole. The locating sleeve 22 is custom-made to the precise dimensions of the large reducer's connecting hole, ensuring a tight fit and effectively preventing horizontal displacement deviation of the reducer during initial assembly. When the locating sleeve 22 is pushed into the reducer's connecting hole, the guide portion 221 first probes in, cleverly guiding the locating sleeve 22 smoothly and accurately into the connecting hole with its tapered shape. This effectively avoids damage to the connecting hole or the locating sleeve 22 due to collisions or jamming during insertion, while also accelerating assembly speed and improving overall assembly efficiency.

[0035] Example 3:

[0036] like Figures 1 to 4 As shown, a positioning and adjustment device for assembling an ultra-large reducer based on Embodiment 1 or Embodiment 2 includes a support 1 and multiple positioning and adjustment mechanisms 2 mounted on the support 1. The positioning and adjustment mechanism 2 includes an adjusting arm 21, one end of which is fixed with a positioning sleeve 22. The positioning sleeve 22 is adapted to the reducer connection hole. The end of the adjusting arm 21 away from the positioning sleeve 22 is provided with a threaded hole 211 perpendicular to the axis of the positioning sleeve 22. An adjusting rod 23 is screwed into the threaded hole 211, and the adjusting rod 23 can be rotated and moved axially until it contacts the side wall of the support 1. The positioning adjustment is then performed by the coordinated cooperation of the adjustment mechanisms on both sides.

[0037] To facilitate rotation by the operator, a handle 24 is connected to the outer side of the adjusting rod 23, and the handle 24 and the adjusting rod 23 can be connected by bolts. In this embodiment, the positioning sleeve 22 has a positioning hole 222 extending axially through it.

[0038] In implementation, the adjusting arm 21 is welded from a steel plate and a steel pipe. The thickness of the steel plate and the diameter of the steel pipe can be adjusted according to the actual situation. This steel pipe can be adjusted according to the size of the connection hole of the ultra-large component. The size of the adjusting screw is selected according to the weight of the workpiece, and the connection between the steel plate and the steel pipe is made by beveling.

[0039] The above-mentioned ultra-large reducer assembly positioning and adjustment device is used as follows: In the installation of reducers for ship lifts and large gate hoists, the first step is to arrange the foundation for the ultra-large reducer installation, including considering design requirements, weight distribution, and operating conditions, and to conduct a precise survey of the installation site. After the foundation arrangement is completed and meets the corresponding strength standards, the support 1 needs to be installed in the correct position and direction. After the support is installed, the ultra-large reducer is hoisted into place, and the ultra-large reducer is adjusted using the support 1 and the positioning and adjustment mechanism 2.

[0040] By utilizing the coordinated operation of support 1 and positioning adjustment mechanism 2, high-precision position adjustment is achieved. The specific operation process is as follows: First, using professional hoisting equipment and strictly following the established hoisting process specifications, the ultra-large reducer is smoothly and accurately hoisted to the predetermined installation position above support 1. At this time, multiple positioning adjustment mechanisms 2 are prepared. The dimensional tolerance of the positioning sleeve 22 matches the height of the connection hole of the ultra-large reducer to ensure a tight fit, forming a stable initial radial positioning and limiting unnecessary displacement of the reducer on the horizontal plane.

[0041] Using the upper surface of support 1 as a reference plane, the position of the reducer relative to support 1 is adjusted by rotating the adjusting rod 23. Positioning and adjusting mechanisms 2 are symmetrically distributed on both sides of support 1. The operator rotates the handle 24, driving the adjusting rod 23 to rotate smoothly within the threaded hole 211 on the adjusting arm 21, achieving precise axial movement of the adjusting rod 23. When the adjusting rod 23 moves axially until its contact point is in close contact with the side wall of support 1, the front end of the adjusting rod 23 is limited by the side wall of support 1 and cannot move axially. Under its threaded engagement with the adjusting arm 21, the adjusting arm 21 moves outward along the axial direction of the adjusting rod 23, pulling the reducer to move. For the adjusting mechanism on the side of the reducer that needs adjustment, rotating the adjusting rod 23 of this mechanism until it contacts the side wall of support 1 uses the axial force generated by rotating the handle 24 as a lateral pulling force on the reducer. Meanwhile, if the adjustment mechanism on the other side restricts the movement of the reducer, the adjustment rod 23 of the corresponding adjustment mechanism on that side needs to be released simultaneously. In this way, through the coordinated cooperation of the adjustment mechanisms on both sides, the reducer can be driven to make precise left and right movements relative to the drum.

[0042] During the adjustment process, the positional change of the reducer relative to the drum can be monitored in real time with the help of testing instruments, and the positioning adjustment mechanisms 2 on both sides can be repeatedly corrected. When the positioning adjustment mechanisms 2 on both sides are adjusted to the correct position, and it is confirmed that the adjustment position of the reducer meets the requirements of coaxial assembly with the drum, the positioning adjustment mechanisms 2 on both sides achieve a stable lock on the position of the reducer through the tight fit between the positioning sleeve 22 and the reducer connection hole and the abutment between the adjustment rod and the side wall of the support 1.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An extra large reduction gear assembly positioning adjustment device characterized by, The device includes a support (1) and multiple positioning and adjustment mechanisms (2) installed on the support (1). The positioning and adjustment mechanism (2) includes an adjusting arm (21). One end of the adjusting arm (21) is fixed with a positioning sleeve (22). The positioning sleeve (22) is adapted to the reducer connection hole. The end of the adjusting arm (21) away from the positioning sleeve (22) is provided with a threaded hole (211) perpendicular to the axis of the positioning sleeve (22). An adjusting rod (23) is screwed into the threaded hole (211) and can rotate the adjusting rod (23) to achieve axial movement.

2. The super-size reducer assembly positioning adjustment device of claim 1, wherein, A handle (24) is connected to the outside of the adjusting rod (23).

3. The super-size reducer assembly positioning adjustment device of claim 1, wherein, The adjusting rod (23) has a contact point at one end near the support (1) that contacts the side wall of the support (1).

4. The super-size reducer assembly positioning adjustment device of claim 3, wherein, The end of the adjusting rod (23) near the support (1) is hemispherical.

5. The super-size reducer assembly positioning adjustment device of claim 4, wherein, The diameter of the end of the positioning sleeve (22) near the support (1) gradually decreases along the axial direction to form a frustum-shaped guide part (221).

6. The super-size reducer assembly positioning adjustment device of claim 5, wherein, The height of the guide portion (221) is less than or equal to the depth of the connecting hole.

7. The super-size reducer assembly positioning adjustment device of claim 1, wherein, The adjusting arm (21) is L-shaped.

8. The super-size reducer assembly positioning adjustment device of any one of claims 1-7, wherein, The upper surface of the support (1) is machined to form a horizontal reference plane.

9. The super-size reducer assembly positioning adjustment device of claim 1, wherein, The positioning sleeve (22) has a positioning hole (222) that extends through it axially.

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