Axial displacement and circumferential rotation reset fine adjustment device and method of operation thereof

Abstract

The present application relates to a kind of reset device in the field of machinery, more particularly to a kind of axial displacement and circumferential rotation reset fine adjustment device and its operating method.It mainly solves the problem that the existing reset device has large operation safety risk and cannot fine adjustment reset during the reset process of the component with irregular shape and large mass.The axial reset assembly includes left shaft (1) and right shaft (16), the left end of right shaft (16) is connected with coupling (5), and left shaft (1) is connected with coupling (5) through positioning pin A (2).The bearing support (7) of circumferential reset assembly is connected outside right shaft (16) through thread, and the outside of bearing support (7) is connected with fixed sleeve (12) through several detachable bearing assembly positioning pins (10).The device has simple structure, convenient operation, safety and reliability, axial displacement and circumferential rotation function can be quickly switched, and the reset precision is high, which can reset the component with large mass and irregular shape.

Description

Technical Field

[0001] This invention relates to a reset device in the field of machinery, specifically an axial displacement and circumferential rotation reset fine adjustment device and its operating method. Background Technology

[0002] In industrial production and on-site maintenance, it is often necessary to perform displacement and rotation repositioning operations on irregularly shaped and heavy components. However, traditional repositioning methods are inefficient, cumbersome, and pose high safety risks, failing to meet practical needs. Currently, there is no dedicated repositioning device on the market that can effectively address the issues of irregular structures, heavy weight, safety risks, and simultaneous adjustment of displacement and rotation. When displacement and angular deviations occur at the work site, due to limited tools, on-site maintenance personnel often use methods such as: Method 1 involves securing a steel wire rope to the outer casing of the equipment containing the component to be reset. The jack's support point rests on the wire rope, with the top of the jack in contact with the component. Raising the jack causes axial displacement of the component. This method has a certain probability of achieving axial displacement, but the failure rate is also high. Failure can lead to the wire rope breaking or the jack's support point becoming unstable and slipping off, damaging the equipment and potentially causing personal injury.

[0003] Method two involves connecting one end of a steel wire rope to the component to be reset and the other end to a tractor via a guide pulley. The tractor is then started to move the component axially. In this method, the guide pulley experiences significant force, requiring not only a secure installation of the support point but also precise design and angle for its placement. Most components to be reset lack suitable support point locations, and ordinary steel profiles are often insufficient, posing a significant safety risk. Furthermore, it is difficult for the tractor to guarantee millimeter-level accuracy in axial displacement.

[0004] Method 3 involves fabricating a sleeve, fixing one end to the part to be reset, and using a pipe wrench or pry bar to rotate the other end circumferentially. This method only works for lightweight and regularly shaped parts. For heavy and irregularly shaped parts, the sleeve has a certain length, and there is no intermediate radial support point during rotation, making it difficult for operators to apply full force, resulting in inconvenience and failure of rotational reset. Summary of the Invention

[0005] To overcome the shortcomings of existing reset devices, such as high operational safety risks and inability to finely adjust the reset during the reset of irregularly shaped and heavy components, this invention provides an axial displacement and circumferential rotation reset fine adjustment device and its operating method. This axial displacement and circumferential rotation reset fine adjustment device has a simple structure, is easy to operate, safe and reliable, and can quickly switch between axial displacement and circumferential rotation functions. It has high reset accuracy and can reset heavy and irregularly shaped components.

[0006] The technical solution of the present invention is: an axial displacement and circumferential rotation reset fine adjustment device, including an axial reset assembly and a circumferential reset assembly. The axial reset assembly includes a left shaft and a right shaft. The left end of the right shaft is connected to a coupling through a positioning pin B. The right end of the left shaft is provided with a radially protruding connector, which is located inside the coupling. The left shaft and the coupling are connected by a detachable positioning pin A. Furthermore, the circumferential reset assembly includes a bearing support, which is threaded to the outside of the right shaft, and the outside of the bearing support is connected to a fixing sleeve by a plurality of detachable bearing assembly locating pins.

[0007] Furthermore, the coupling has a step inside, the connector of the left shaft is located on the right side of the step surface of the coupling, and a thrust tapered roller bearing A is provided between the left side of the connector and the step surface of the coupling.

[0008] Furthermore, a thrust tapered roller bearing B is provided between the right side of the connector of the left shaft and the left side of the right shaft.

[0009] Furthermore, the right end of the right shaft has at least one radial through hole, through which a pry bar is movably connected; the left end of the left shaft has at least one workpiece connecting pin hole.

[0010] Furthermore, there are two positioning pins A, which are axially staggered and radially perpendicular to each other; there are two positioning pins B, which are axially staggered and radially perpendicular to each other.

[0011] Furthermore, tapered roller bearings are provided on the outer sides of both the left and right ends of the bearing support, and bearing caps are provided on the outer sides of the tapered roller bearings. The fixing sleeve is located outside the bearing caps.

[0012] Furthermore, the bearing assembly locating pin is threadedly connected to the fixing sleeve and the bearing cover, and the end of the bearing assembly locating pin is located in the circular hole on the outer wall of the bearing support.

[0013] Furthermore, the bearing assembly has eight locating pins, evenly distributed along the circumference.

[0014] Furthermore, the upper retaining ring and the lower retaining ring of the bearing are respectively connected to the outer sides of the left and right ends of the bearing support.

[0015] According to the operation method of the axial displacement and circumferential rotation reset fine adjustment device, the fixing sleeve is fixed on the outer shell of the component to be reset, and the left shaft is connected to the component to be reset through the workpiece connecting pin; Perform axial displacement reset and / or circumferential rotation reset; When resetting the axial displacement, remove the locating pin A, rotate the bearing assembly locating pin inward to the limit position, rotate the pry bar to drive the right shaft to rotate, and at the same time the right shaft rotates, it drives the left shaft and the component to be reset to move axially, thereby realizing the axial displacement reset. During circumferential rotation reset, insert locating pin A, rotate the bearing assembly locating pin outward to disengage the end of the bearing assembly locating pin from the bearing support, rotate the pry bar to drive the right shaft to rotate, and at the same time the right shaft rotates, it drives the left shaft and the component to be reset to rotate, thus achieving circumferential rotation reset.

[0016] The present invention has the following beneficial effects: Due to the above-mentioned solution, the present invention utilizes a pry bar and threaded rotation for axial displacement and circumferential rotation reset. In actual operation, only one person can move or rotate a 2-ton object, and the entire reset process can be easily operated by two people, avoiding lifting operations, saving effort and preventing safety accidents. Switching between axial displacement and circumferential rotation functions is achieved by installing and removing positioning pins, making operation simple and enabling faster reset, thus improving work efficiency. Furthermore, during reset, one rotation of the thread results in only 2mm of axial movement, allowing for fine-tuning and more accurate reset. This reset device is reusable, has a simple structure, is easy to maintain, and has a low overall reset operation cost. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is an exploded view of the circumferential reset assembly; Figure 3 These are comparison diagrams of two states of the bearing assembly locating pin, where Figure a shows the circumferential rotation reset assembly in the locked state and Figure b shows the circumferential rotation reset assembly in the unlocked state. Figure 4 This is a schematic diagram of an embodiment of the present invention.

[0018] In the diagram, 1-left shaft, 2-locating pin A, 3-thrust tapered roller bearing A, 4-thrust tapered roller bearing B, 5-coupling, 6-locating pin B, 7-bearing support, 8-bearing upper retaining ring, 9-bearing retaining ring pin, 10-bearing assembly locating pin, 11-bearing cover, 12-bearing cover retaining sleeve, 13-tapered roller bearing, 14-bearing lower retaining ring, 15-pry bar, 16-right shaft. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. The technical solutions in the embodiments of the present invention will be clearly and completely described. 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.

[0020] In the description of this invention, it is necessary to understand that the orientations or positional relationships indicated by terms such as "upper," "lower," "left," "right," "inner," "outer," "top," and "bottom" are all based on the orientations or positional relationships shown in the accompanying drawings. Their purpose is solely to facilitate the description of this invention and to simplify the description; they do not indicate or imply that the referred components must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limitations on this invention. Furthermore, the term "and / or" in this invention is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone.

[0021] Depend on Figure 1 , Figure 2 As shown, an axial displacement and circumferential rotation reset fine-tuning device includes an axial reset assembly and a circumferential reset assembly. The axial reset assembly can adjust the axial displacement of the component to be reset, thereby achieving axial reset. The circumferential reset assembly can rotate the component to be reset along the central axis of the device, thereby achieving circumferential reset. The axial reset assembly and the circumferential reset assembly are connected, and their operation can simultaneously achieve axial displacement and circumferential rotation reset of the component to be reset.

[0022] The axial reset assembly includes a left shaft 1 and a right shaft 16, whose centerlines are aligned and connected by a coupling 5. The left end of the right shaft 16 is located inside the coupling 5, and a locating pin B6 passes through the coupling 5 and the right shaft 16, connecting them. There can be two locating pins B6, axially offset and radially perpendicular, which makes the connection between the right shaft 16 and the coupling 5 more stable and able to withstand greater axial and radial forces. The right end of the right shaft 16 has at least one radial through hole, through which a pry bar 15 is connected. Similarly, there can be two through holes on the right shaft 16, with the two through holes radially perpendicular. This allows the pry bar 15 to be inserted into either through hole according to the required angle during reset, or two pry bars can be inserted into the two through holes simultaneously. This allows two people to operate the reset assembly when resetting heavy workpieces.

[0023] The right end of the left shaft 1 is located inside the coupling 5. The right end of the left shaft 1 has a radially protruding connector, forming a shoulder between the connector and the left shaft body. The connector is located inside the coupling 5. The coupling 5 has a step inside, and the connector of the left shaft 1 is located on the right side of the step surface of the coupling 5. A thrust tapered roller bearing A3 is located between the left shoulder of the connector and the step surface of the coupling 5. A thrust tapered roller bearing B4 is located between the right side of the connector of the left shaft 1 and the left side of the right shaft 16. The left end of the left shaft 1 has at least one workpiece connecting pin hole, in which a workpiece connecting pin is installed. The workpiece connecting pin can connect the workpiece to be reset to the left shaft 1. Alternatively, there can be two workpiece connecting pins, axially staggered and radially perpendicular to each other. One or two workpiece connecting pins can be used to connect the workpiece to be reset, depending on the needs.

[0024] The circumferential reset assembly includes a bearing support 7, which can be threaded onto the outside of the right shaft 16, thus connecting the circumferential reset assembly and the axial reset assembly as a single unit. The bearing support 7 is externally connected to a fixing sleeve 12 via several detachable bearing assembly locating pins 10. To achieve circumferential rotational reset, the fixing sleeve 12 and the bearing support 7 need to be able to rotate relative to each other. Thus, when the fixing sleeve 12 is fixed to the housing of the workpiece to be reset, the bearing support 7, the axial reset assembly, and the workpiece to be reset can rotate together relative to the workpiece. Therefore, the fixing sleeve 12 and the bearing support 7 can adopt the following structure: Depend on Figure 2 As shown, tapered roller bearings 13 are respectively provided on the outer sides of the left and right ends of the bearing support 7. Bearing caps 11 are provided on the outer sides of the tapered roller bearings 13. Upper bearing retaining rings 8 and lower bearing retaining rings 14 are respectively connected to the outer sides of the left and right ends of the bearing support 7. The upper bearing retaining rings 8 are connected to the left ends of the bearing support 7 and bearing caps 11 via bearing retaining ring pins 9. Similarly, the lower bearing retaining rings 14 are connected to the right ends of the bearing support 7 and bearing caps 11 via bearing retaining ring pins 9. The fixing sleeve 12 is located outside the bearing cap 11. Threaded holes with opposite positions are opened on the side walls of the fixing sleeve 12 and bearing cap 11. A countersunk hole opposite to the threaded holes is opened on the side wall of the bearing support 7. The bearing assembly positioning pin 10 is connected to the threaded holes of the fixing sleeve 12 and bearing cap 11, and the end of the bearing assembly positioning pin 10 is located in the countersunk hole on the outer wall of the bearing support 7. To ensure the requirements of the fixing sleeve 12, bearing cover 11, and strength, the more bearing assembly locating pins 10 the better. Preferably, there are eight bearing assembly locating pins 10, evenly distributed along the circumference. This way, when the bearing assembly locating pins 10 are tightened inward to their limit position, the fixing sleeve 12, bearing cover 11, and bearing support 7 are connected as a single unit, radially fixing all three. When the bearing assembly locating pins 10 are tightened outward, disengaging their ends from the countersunk holes of the bearing support 7, the bearing support 7 can rotate relative to the bearing cover 11 and fixing sleeve 12. Figure 3Comparison of two states of bearing assembly fixing pin 10.

[0025] The operation method of this axial displacement and circumferential rotation reset fine adjustment device includes the following steps: 1. Preparations: (1) Assemble the axial reset assembly and the circumferential reset assembly separately, and connect the circumferential reset assembly to the right shaft 16 of the axial reset assembly through the bearing support 7.

[0026] (2) Connect the left shaft 1 to the part to be reset. The workpiece connecting pin can be inserted into the workpiece connecting pin hole and the workpiece to be reset, or it can be connected by welding or connecting fixtures, so that the left shaft 1 and the part to be reset can achieve synchronous axial displacement or axial rotation.

[0027] (3) Fix the fixing sleeve 12 to the outer shell of the component to be reset. The left end face of the fixing sleeve 12 can be fixedly connected to the outer shell of the component to be reset. Welding, bolts or other connection methods can be used to fix the component to be reset and the fixing sleeve 12.

[0028] 2. Perform axial displacement reset and / or circumferential rotation reset: Depending on the actual needs of the component to be reset, axial displacement reset and circumferential rotation reset operations can be performed separately, or only one type of reset operation can be performed.

[0029] (1) When the axial displacement is reset, remove the locating pin A2 to eliminate the radial restriction of the left shaft 1. Then the left shaft 1 can rotate relative to the right shaft 16, but the two cannot move relative to each other in the axial direction. Rotate the bearing assembly locating pin 10 inward to its limit position so that the fixing sleeve 12, bearing cover 11 and bearing support 7 cannot rotate radially relative to each other. Insert the pry bar 15 into the through hole of the right shaft 16, rotate the pry bar 15, causing the right shaft 16 to rotate, which in turn causes the coupling 5 to rotate. Since the outer shell of the component to be reset is fixed to the fixed sleeve 12, the right shaft 16 can convert the radial rotation into axial displacement, causing the left shaft 1 to move axially, thereby causing the component to be reset to move axially and achieving axial displacement reset.

[0030] The right shaft 16 can be rotated clockwise or counterclockwise as needed to achieve two displacement reset functions: axial pull and push. When pulling axially, the thrust tapered roller bearing A3 plays a major role; when pushing axially, the thrust tapered roller bearing B4 plays a major role.

[0031] (2) When resetting the circumferential rotation, insert the positioning pin A2 to restrict the relative radial movement between the left shaft 1 and the coupling 5, so that the left shaft 1 and the right shaft 16 can rotate together; Rotate the bearing assembly locating pin 10 outward until the end of the bearing assembly locating pin 10 disengages from the countersunk hole of the bearing support 7, allowing the bearing support 7 and the fixed sleeve 12 to rotate relative to each other. At this time, the fixed sleeve 12 is fixed to the outer shell of the workpiece to be reset, thereby allowing the bearing support 7, the right shaft 16, and the outer shell of the workpiece to be reset to rotate relative to each other. Rotating the pry bar 15 causes the right shaft 16 to rotate, and the rotation of the right shaft 16 simultaneously causes the left shaft 1 and the component to be reset to rotate, thereby achieving the rotation of the component to be reset relative to the outer shell and realizing circumferential rotation reset.

[0032] This invention utilizes a pry bar and threaded rotation for axial displacement and circumferential rotation reset. In actual operation, only one person can move or rotate a 2-ton object, and the entire reset process can be easily operated by two people, avoiding lifting operations, saving effort and preventing accidents. Switching between axial displacement and circumferential rotation functions is achieved by installing and removing locating pins, making operation simple and enabling faster reset, thus improving work efficiency. Furthermore, during reset, one rotation of the thread results in only 2mm of axial movement, allowing for fine-tuning and more accurate reset. This reset device is reusable, simple in structure, easy to maintain, and has a low overall reset operation cost. Example

[0033] The present invention will now be described in detail using a complete set of thermal desorption treatment equipment as an example.

[0034] The thermal desorption system is an environmentally friendly device used to treat oil drill cuttings and oily sludge. The furnace structure is a double-helix desorption furnace. Damage to the limiting ring at the main helix drive end caused the main helix to move 2cm and rotate nearly 165° relative to the secondary helix. The equipment could only be restarted after the axial displacement and circumferential rotation were reset.

[0035] The spindle screw reset process is as follows, see Figure 4 : 1. Disassemble the double helix drive and its transmission components.

[0036] 2. The axial reset assembly and the circumferential reset assembly are assembled together by threading the bearing support 7 and the right shaft 16.

[0037] 3. Insert the left end of the left shaft 1 into the through hole of the main spindle screw shaft, and insert two workpiece connecting pins into the workpiece connecting pin holes that are perpendicular to each other on the left shaft 1 to fix the left shaft relative to the main spindle screw shaft, thus restricting its axial movement and circumferential rotation.

[0038] 4. Rotate the circumferential reset assembly to generate axial displacement, adjust its position on the right shaft 16 until the fixing sleeve 12 contacts the end face of the desorption furnace shell, and weld the fixing sleeve 12 to the desorption furnace shell.

[0039] 5. Remove the locating pin A2 between the left side of coupling 5 and the left shaft 1.

[0040] 6. Insert 2-meter-long pry bars 15 into the two through holes at the right end of the right shaft 16. Operate the pry bars 15 to rotate the axial reset assembly, causing it to move axially, which in turn moves the main shaft screw shaft axially until the axial displacement is reset. During this process, due to the action of the thrust tapered roller bearing 34, the main screw generates axial displacement without rotating; the pry bars 15 can move within the through holes. The lever arm length can be adjusted according to the operator's experience to make the operation more efficient and labor-saving.

[0041] 7. Insert the two locating pins A2 on the left side of the coupling 5 to restrict the radial displacement between the coupling 5 and the left shaft 1, so that the left shaft 1 and the right shaft 16 are completely constrained in terms of axial displacement and circumferential rotation.

[0042] 8. Rotate all bearing assembly locating pins 10 outwards to move them in all directions until the top of all bearing assembly locating pins 10 disengages from the countersunk hole of the bearing support 7. The bearing support 7 and the bearing cover 11 change from being relatively fixed to being able to rotate relative to each other. At this time, the bearing cover fixing sleeve 12 and the desorption furnace shell are still relatively fixed.

[0043] 9. Operate the pry bar 15 and rotate the right shaft 16. The axial reset assembly will rotate accordingly, driving the main spindle screw shaft to rotate together until the main spindle screw shaft achieves circumferential rotation reset.

[0044] 10. After resetting, cut the weld between the bearing cover fixing sleeve 12 and the desorption furnace shell, remove the workpiece connecting pin between the left shaft 1 and the main shaft screw shaft; install the double screw drive and its transmission components to restore the original state.

[0045] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A fine-tuning device for axial displacement and circumferential rotation reset, characterized in that: It includes an axial reset assembly and a circumferential reset assembly. The axial reset assembly includes a left shaft (1) and a right shaft (16). The left end of the right shaft (16) is connected to the coupling (5) via a locating pin B (6). The right end of the left shaft (1) is provided with a radially protruding connector, which is located inside the coupling (5). The left shaft (1) and the coupling (5) are connected by a detachable locating pin A (2). The circumferential reset assembly includes a bearing support (7), which is threaded to the outside of the right shaft (16). The bearing support (7) is connected to a fixing sleeve (12) by a number of detachable bearing assembly positioning pins (10).

2. The axial displacement and circumferential rotation reset fine-tuning device according to claim 1, characterized in that: The coupling (5) has a step inside, the connector of the left shaft (1) is located on the right side of the step surface of the coupling (5), and a thrust tapered roller bearing A (3) is provided between the left side of the connector and the step surface of the coupling (5).

3. The axial displacement and circumferential rotation reset fine-tuning device according to claim 2, characterized in that: A thrust tapered roller bearing B (4) is provided between the right side of the connector of the left shaft (1) and the left side of the right shaft (16).

4. The axial displacement and circumferential rotation reset fine-tuning device according to claim 3, characterized in that: The right shaft (16) has at least one radial through hole at its right end, and a pry bar (15) is movably connected inside the through hole; the left shaft (1) has at least one workpiece connecting pin hole at its left end.

5. The axial displacement and circumferential rotation reset fine-tuning device according to claim 4, characterized in that: There are two positioning pins A (2), which are axially offset and radially perpendicular to each other; there are two positioning pins B (6), which are axially offset and radially perpendicular to each other.

6. The axial displacement and circumferential rotation reset fine-tuning device according to claim 1, characterized in that: Tapered roller bearings (13) are provided on the outside of both the left and right ends of the bearing support (7), and bearing caps (11) are provided on the outside of the tapered roller bearings (13). The fixing sleeve (12) is located outside the bearing caps (11).

7. The axial displacement and circumferential rotation reset fine adjustment device according to claim 6, characterized in that: The bearing assembly positioning pin (10) is threadedly connected to the fixing sleeve (12) and the bearing cover (11), and the end of the bearing assembly positioning pin (10) is located in the round hole on the outer wall of the bearing support (7).

8. The axial displacement and circumferential rotation reset fine-tuning device according to claim 7, characterized in that: The bearing assembly has eight locating pins (10), which are evenly distributed along the circumference.

9. The axial displacement and circumferential rotation reset fine-tuning device according to claim 8, characterized in that: The bearing support (7) is connected to the upper bearing retaining ring (8) and the lower bearing retaining ring (14) on the left and right sides respectively.

10. The operating method of the axial displacement and circumferential rotation reset fine adjustment device according to any one of claims 1-9, characterized in that: The fixing sleeve (12) is fixed on the outer shell of the component to be reset, and the left shaft (1) is connected to the component to be reset through the workpiece connecting pin; Perform axial displacement reset and / or circumferential rotation reset; When the axial displacement is reset, remove the positioning pin A (2), rotate the bearing assembly positioning pin (10) inward to the limit position, rotate the pry bar (15) to drive the right shaft (16) to rotate, and at the same time the right shaft (16) rotates, it drives the left shaft (1) and the component to be reset to move axially, thereby realizing the axial displacement reset; When circumferentially rotating to reset, insert the positioning pin A (2), rotate the bearing assembly positioning pin (10) outward, so that the end of the bearing assembly positioning pin (10) is disengaged from the bearing support (7), rotate the pry bar (15), drive the right shaft (16) to rotate, and at the same time the right shaft (16) rotates, it drives the left shaft (1) and the component to be reset to rotate, thus realizing circumferential rotation reset.

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