Distillation equipment dynamic balance maintenance test frame for resin synthesis

Abstract

The utility model relates to the technical field of distillation equipment maintenance, in particular to a distillation equipment dynamic balance maintenance test frame for resin synthesis, which comprises a frame body and a dynamic balance detector, the frame body can move, a lifting mechanism is arranged on the frame body, a fixing plate is arranged at the mounting end of the lifting mechanism, and the dynamic balance detector is arranged on the fixing plate. The fixing plate is used for fixing a sealing cover, a mounting support is arranged on the fixing plate and used for fixing a stirring motor, and the dynamic balance detector is adjustably mounted at the outward end of a telescopic rod on the lower portion of the frame body. The detection end of the dynamic balance detector can abut against the side face of a stirring shaft connected with the output end of the stirring motor. The distillation equipment dynamic balance overhaul test frame for resin synthesis can be used for carrying out dynamic balance test on a stirring mechanism, and also can be used for conveniently assisting in mounting the detected stirring mechanism on a glass distillation reaction kettle, so that the mounting precision is ensured, and the mounting convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of distillation equipment maintenance technology, specifically to a dynamic balance maintenance test rack for distillation equipment used in resin synthesis. Background Technology

[0002] Distillation equipment is required in the synthesis or production of some specialty resins to separate different products. Conventional distillation equipment in chemical production typically includes a glass distillation system. After disassembling and replacing the stirring motor or reactor, a dynamic balance test is necessary for the entire glass reactor. This ensures dynamic balance during subsequent distillation, guaranteeing stable operation of the entire distillation system. The dynamic balance test for the glass distillation reactor generally focuses on the dynamic balance of the stirring mechanism. In practical use, since the distillation volume of glass distillation reactors is typically between 0.5 and 100 L, larger reactors require larger stirring motors and longer stirring shafts. Therefore, the dynamic balance of the stirring mechanism (motor and shaft) is crucial for the entire distillation system, ensuring stable operation. The dynamic balance test primarily checks the dynamic balance of the stirring shaft.

[0003] Currently, dynamic balancing testing of the stirring mechanism mainly relies on manual inspection. This testing is typically conducted after the stirring motor and shaft are installed on the lid of the glass distillation reactor. Directly installing the stirring motor, shaft, and lid onto the reactor before testing is cumbersome due to limitations imposed by the reactor and other distillation accessories, making it impossible to install dynamic balancing testing equipment. This significantly reduces testing accuracy. If the stirring motor, shaft, and lid are first tested on external equipment, then disassembled and reassembled, the installation accuracy is compromised, and the reassembled structure cannot guarantee its rotational precision. Transferring the tested stirring mechanism and lid as a whole to the reactor is also difficult due to environmental constraints and the size limitations of the structure itself. Utility Model Content

[0004] To overcome one of the shortcomings of the existing technology, the purpose of this utility model is to provide a dynamic balancing test rack for distillation equipment used in resin synthesis. In addition to performing dynamic balancing tests on the stirring mechanism, this dynamic balancing test rack for distillation equipment used in resin synthesis can also facilitate the installation of the tested stirring mechanism on a glass distillation reactor, ensuring installation accuracy and improving installation convenience.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0006] A dynamic balancing test frame for distillation equipment used in resin synthesis includes a frame body and a dynamic balancing instrument. The frame body is movable and has a lifting mechanism. A fixing plate is provided on the mounting end of the lifting mechanism for fixing a cap. A mounting bracket is provided on the fixing plate for fixing a stirring motor. The dynamic balancing instrument is adjustablely mounted on the frame body or on the outward end of a telescopic rod at the bottom of the frame body. The testing end of the dynamic balancing instrument can abut against the side of the stirring shaft connected to the output end of the stirring motor.

[0007] Furthermore, the lifting mechanism includes lifting guide rods and lifting screws. Several lifting guide rods are provided, and the same end of each rod is movably inserted into the top of the frame. The fixing plate is installed on the other end of all the lifting guide rods. One end of the lifting screw is rotatably connected to the back of the fixing plate, and the other end of the lifting screw is connected to the frame through a screw nut. The frame is provided with a drive motor for driving the lifting screw to rotate.

[0008] Furthermore, the fixing plate is provided with a clearance opening for accommodating the stirring shaft.

[0009] Furthermore, the mounting bracket is provided with a mounting position for mounting the stirring motor.

[0010] Furthermore, the frame is provided with a slide rail, and one end of the telescopic rod is slidably mounted on the slide rail via a slider. The slider is provided with a locking bolt, which can lock the slider and the slide rail in place.

[0011] Furthermore, the telescopic rod includes a main rod and a secondary rod. One end of the main rod is mounted on the slider, and the secondary rod is movably inserted into one end of the main rod. The secondary rod can only slide along the axial direction of the main rod. A locking element is provided on the main rod, which can lock the relative position of the main rod and the secondary rod. The dynamic balancing instrument is mounted on the outward end of the secondary rod.

[0012] Furthermore, the dynamic balancing tester includes a tester body, a speed acquisition probe, and a pair of interlocking grippers. The tester body is mounted on a telescopic rod or frame. The pair of grippers are mounted on the outward end of the telescopic rod. Several bearings are rotatably arranged on the inner sidewalls of the pair of grippers, and the rotation centers of all bearings are perpendicular to the plane in which the grippers are positioned. Vibration acquisition probes are connected to all bearings. The pair of grippers can cooperate to enclose the outward end of the stirring shaft, and the outer circumferences of all bearings can press against the outer circumference of the stirring shaft. The speed acquisition probe is mounted on the fixed plate and is used to acquire the speed of the stirring shaft located in the area where the fixed plate is located. Vibration acquisition probes are also provided on the bearings between the cover and the stirring shaft. All vibration acquisition probes and speed acquisition probes are electrically connected to the tester body.

[0013] Furthermore, the vibration acquisition probe is an accelerometer.

[0014] Furthermore, the bottom of the frame is equipped with several casters with brakes.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This utility model discloses a dynamic balancing test rack for distillation equipment used in resin synthesis. The rack is designed to be movable, facilitating movement and position adjustment by operators. A lifting mechanism is used to adjust the cap to be tested, providing sufficient support to ensure the accuracy of subsequent dynamic balancing test results. Furthermore, a bracket is designed on the fixed plate to secure the stirring motor in the stirring mechanism, providing stable support and facilitating the stirring motor to drive the stirring shaft relative to the cap for dynamic balancing testing. The dynamic balancing instrument is adjustablely mounted on a telescopic rod at the bottom of the rack, a design adaptable to dynamic balancing tests of stirring shafts with different diameters.

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0018] Figure 1 This is a top view of an embodiment of the present utility model;

[0019] Figure 2 This is a front view of an embodiment of the present utility model;

[0020] Figure 3 This is a right view of a portion of the structure in an embodiment of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the telescopic rod and the frame in an embodiment of this utility model;

[0022] Figure 5 This is a schematic diagram of the gripper structure in an embodiment of this utility model.

[0023] Explanation of icon numbers:

[0024] Frame 10, Slide rail 11, Slider 12, Locking bolt 13, Dynamic balancing instrument 20, Instrument body 21, Speed ​​acquisition probe 22, Claw gripper 23, Bearing 24, Vibration acquisition probe 25, Mounting bracket 26, Lifting mechanism 30, Fixing plate 31, Mounting bracket 32, Lifting guide rod 33, Lifting screw 34, Drive motor 35, Clearance opening 36, Mounting position 37, Telescopic rod 40, Main rod 41, Sub-rod 42, Locking component 43, Cover 50, Stirring motor 60, Stirring shaft 70 Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0026] Reference Figures 1 to 5 The diagram shows a dynamic balancing test frame for a distillation apparatus used in resin synthesis, comprising a frame 10 and a dynamic balancing instrument 20. The frame 10 is movable and has a lifting mechanism 30. A fixing plate 31 is provided on the mounting end of the lifting mechanism 30 for fixing a cover 50. A mounting bracket 32 ​​is provided on the fixing plate 31 for fixing a stirring motor 60. The dynamic balancing instrument 20 is adjustablely mounted on the frame 10 or on the outward end of a telescopic rod 40 at the bottom of the frame 10. The testing end of the dynamic balancing instrument 20 can abut against the side of a stirring shaft 70 connected to the output end of the stirring motor 60.

[0027] To facilitate movement, the bottom of the frame 10 is equipped with several casters 14 with brakes. The lifting mechanism 30 in the above embodiment primarily aims to adjust the height of the entire stirring mechanism. Besides facilitating adaptation to different types and specifications of stirring mechanisms, it also allows the stirring mechanism to be tested to be mounted on a corresponding glass distillation reactor, improving convenience. Furthermore, to facilitate fixing the cap 50, several pressure blocks can be designed on the fixing plate 31 to press and fix the cap 50 onto the fixing plate 31. The stirring motor 60 and the bracket 32 ​​can also be fixed with screws, which will not be detailed here. The dynamic balancing tester 20 can adopt a conventional structural design, such as the technical solutions in patents CN201810256346.6 - A Combined Rotary System Assembly Online Dynamic Balancing Test System and Test Method or CN202210916237.9 - A Rotating Machinery Shaft System Dynamic Balancing Test Method Based on Strain Technology, which will not be detailed here.

[0028] The dynamic balancing test rack for resin synthesis distillation equipment is designed to be movable, facilitating movement and position adjustment by personnel. A lifting mechanism 30 is used to adjust the cap 50 to be tested, providing sufficient support to ensure the accuracy of subsequent dynamic balancing test results. Furthermore, a bracket 32 ​​is designed on the fixed plate 31 to fix the stirring motor 60 in the stirring mechanism, providing stable support and facilitating the rotation of the stirring shaft 70 relative to the cap 50 by the stirring motor 60 to achieve dynamic balancing testing. The dynamic balancing tester 20 is adjustablely mounted on the telescopic rod 40 at the lower part of the frame 10, a design adaptable to dynamic balancing tests of stirring shafts 70 with different diameters.

[0029] See Figures 1 to 2 To achieve height adjustments to accommodate dynamic balancing tests of different stirring mechanisms and subsequent auxiliary installation work, the lifting mechanism 30 can be a traditional lifting shear frame structure. In one embodiment of this application, the lifting mechanism 30 includes lifting guide rods 33 and lifting screws 34. Several lifting guide rods 33 are provided, with each end movably inserted into the top of the frame 10. A fixing plate 31 is installed on the other end of all the lifting guide rods 33. One end of the lifting screw 34 is rotatably connected to the back of the fixing plate 31, and the other end of the lifting screw 34 is connected to the frame 10 via a screw nut. A drive motor 35 for driving the lifting screw 34 to rotate is provided on the frame 10. In the above embodiment, four sets of lifting guide rods 33 are provided, respectively located at the four corners of the frame 10, and are directly installed via linear bearings.

[0030] Furthermore, to allow workers to easily detach the entire stirring mechanism from the maintenance frame later, the fixing plate 31 is provided with an clearance opening 36 for accommodating the stirring shaft 70. During actual installation, the stirring mechanism, consisting of the stirring shaft 70, the stirring motor 60, and the cover 50, can be removed together from the clearance opening 36, facilitating its direct transfer to the glass distillation reactor later.

[0031] Similarly, in one embodiment of this application, the mounting bracket 32 ​​is provided with a mounting position 37, which is used to mount the stirring motor 60. The mounting position 37 is provided with a plurality of mounting holes, which facilitate the fixing of the stirring motor 60 to the mounting holes by screws.

[0032] See Figure 1 and Figure 4 In actual testing, the imbalance generated when the stirring shaft 70 rotates is caused by the fact that the centers of mass of each micro-segment of the rotor are not strictly aligned with the axis of rotation. In one embodiment of this application, in order to detect the coaxiality of different areas of the stirring shaft 70, a slide rail 11 is provided on the frame 10. One end of the telescopic rod 40 is slidably mounted on the slide rail 11 via a slider 12. A locking bolt 13 is provided on the slider 12, which can lock the slider 12 and the slide rail 11. This structural design facilitates the adjustment of the entire telescopic rod 40 and the dynamic balance tester 20 on it relative to the dynamic balance of different areas of the stirring shaft 70 by the operator.

[0033] In one embodiment of this application, to accommodate dynamic balance testing of stirring shafts 70 with different diameters, the telescopic rod 40 includes a main rod 41 and a secondary rod 42. One end of the main rod 41 is mounted on the slider 12, and the secondary rod 42 is movably inserted into one end of the main rod 41. The secondary rod 42 can only slide along the axial direction of the main rod 41. A locking member 43 is provided on the main rod 41, which can lock the relative positions of the main rod 41 and the secondary rod 42. The dynamic balance tester 20 is mounted on the outward end of the secondary rod 42. The locking member 43 can be a nut locking sleeve structure or a locking screw structure; these are conventional structural designs and will not be described in detail here.

[0034] See Figure 4 and Figure 5In one embodiment of this application, to facilitate the detection of the dynamic balance, i.e., vibration, of the stirring shaft 70, the dynamic balance tester 20 can be a conventional dynamic balance testing system, such as patent 201810256346.6 - A method for dynamic balance testing of rotating machinery shafts based on strain technology. Alternatively, in one embodiment of this application, the dynamic balance tester 20 includes a tester body 21, a speed acquisition probe 22, and a pair of interlocking grippers 23. The tester body 21 is mounted on the telescopic rod 40 or the frame 10. The pair of grippers 23 are mounted on the outward end of the telescopic rod 40. A plurality of bearings 24 are rotatably arranged on the inner sidewalls of the pair of grippers 23, and the rotation centers of all bearings 24 are perpendicular to the plane containing the gripping direction of the pair of grippers 23. Vibration acquisition probes 25 are connected to all bearings 24. A pair of gripping claws 23 can cooperate to hold the outward end of the stirring shaft 70 inward, and the outer periphery of all the bearings 24 can abut against the outer periphery of the stirring shaft 70. The speed acquisition probe 22 is mounted on the fixing plate 31. The speed acquisition probe 22 is used to acquire the speed of the stirring shaft 70 located in the area of ​​the fixing plate 31. A vibration acquisition probe 25 is also provided on the bearing 24 between the cover 50 and the stirring shaft 70. All the vibration acquisition probes 25 and the speed acquisition probes 22 are electrically connected to the detector body 21. In the above embodiment, the vibration acquisition probe 25 is an acceleration sensor.

[0035] The design of the gripper 23 is primarily for facilitating the gripping of the stirring shaft 70 and also for simplifying the disassembly and assembly of the entire stirring mechanism, thus improving ease of use. To accommodate stirring shafts 70 of different diameters, in one embodiment of this application, the bearing 24 is mounted on the gripper 23 via a mounting bracket 26. The mounting bracket 26 can be adjusted relative to the gripper 23, allowing for adjustment of the bearing 24's extension. In this application, a group of grippers 23 form a circular structure, with all bearings 24 adjusting towards the center of this circular structure. This design ensures that the stirring shaft 70 is centered within the gripper 23 when all bearings 24 are in contact with it. The mounting bracket 26 can be a fork-shaped structure, screwed onto the gripper 23. For easy adjustment, a rotatable nut can be provided on the outer wall of the gripper 23 to adjust the bolt extension length, thereby ensuring that the outer wall of the corresponding bearing 24 is tightly against the stirring shaft 70. It should be noted that the method for detecting the dynamic balance of the vibration acquisition probe 25 and speed acquisition probe 22 on the outer wall of all the bearings 24 can be found in the technical solution of patent CN201810256346.6 - an online dynamic balance detection system and detection method for a combined rotary system assembly, which will not be described in detail here.

[0036] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A dynamic balancing test stand for distillation equipment for resin synthesis, characterized in that, The device comprises a frame and a dynamic balance detector, the frame is movable, a lifting mechanism is arranged on the frame, a fixing plate is arranged on the mounting end of the lifting mechanism, the fixing plate is used for fixing a cover, a mounting bracket is arranged on the fixing plate, the mounting bracket is used for fixing a stirring motor, the dynamic balance detector is adjustably mounted on the frame or the outer end of the telescopic rod at the lower part of the frame, and the detection end of the dynamic balance detector can abut against the side surface of the stirring shaft connected with the output end of the stirring motor.

2. A dynamic balancing test stand for the maintenance of distillation apparatus for the synthesis of resins according to claim 1, characterized in that: The lifting mechanism comprises lifting guide rods and a lifting screw rod, the lifting guide rods are arranged in several and movably inserted into the top of the frame at the same end, the fixing plate is mounted on the other end of all the lifting guide rods, one end of the lifting screw rod is rotatably connected with the back surface of the fixing plate, and the other end of the lifting screw rod is connected with the frame through a screw nut.

3. A dynamic balancing test stand for servicing distillation apparatus for resin synthesis according to claim 1, characterized in that: An avoiding opening is arranged on the fixing plate, and the avoiding opening is used for accommodating the stirring shaft.

4. A dynamic balancing test stand for servicing distillation apparatus for resin synthesis according to claim 3, characterized in that: A mounting position is arranged on the mounting bracket, and the mounting position is used for mounting the stirring motor.

5. A dynamic balancing test stand for servicing distillation apparatus for resin synthesis according to claim 1, characterized in that: A slide rail is arranged on the frame, one end of the telescopic rod is slidably mounted on the slide rail through a sliding block, a locking bolt is arranged on the sliding block, and the locking bolt is used for relative locking of the sliding block and the slide rail.

6. A dynamic balancing test stand for servicing distillation apparatus for resin synthesis according to claim 5, characterized in that: The telescopic rod comprises a main rod and a vice rod, one end of the main rod is mounted on the sliding block, the vice rod is movably inserted into one end of the main rod, the vice rod can only slide on the main rod along the axial direction of the main rod, a locking piece is arranged on the main rod, the locking piece can lock the relative position of the main rod and the vice rod, and the dynamic balance detector is mounted on the outer end of the vice rod.

7. A dynamic balancing test stand for servicing distillation apparatus for resin synthesis according to any one of claims 1 to 6, characterized in that: The dynamic balance detector comprises a detector main body, a rotating speed acquisition probe, and a pair of clamping jaws capable of being opened and closed relative to each other, the detector main body is mounted on the telescopic rod or the frame, one pair of clamping jaws is mounted on the outer end of the telescopic rod, a plurality of bearings are rotatably arranged on the inner side walls of one pair of clamping jaws, the rotation centers of all the bearings are perpendicular to the plane in which the clamping direction of one pair of clamping jaws is located, vibration acquisition probes are connected to all the bearings, one pair of clamping jaws can clamp the outer end of the stirring shaft inward in cooperation, and the outer periphery of all the bearings can abut against the outer periphery of the stirring shaft, the rotating speed acquisition probe is mounted on the fixing plate, the rotating speed acquisition probe is used for acquiring the rotating speed of the stirring shaft in the area of the fixing plate, vibration acquisition probes are also arranged on the bearings between the cover and the stirring shaft, and all the vibration acquisition probes and the rotating speed acquisition probe are electrically connected with the detector main body.

8. A dynamic balancing test stand for servicing distillation apparatus for resin synthesis according to claim 7, characterized in that: The vibration acquisition probe is an acceleration sensor.

9. A dynamic balancing test stand for servicing distillation apparatus for resin synthesis according to claim 1, characterized in that: A plurality of brake casters are arranged at the bottom of the frame.

Images