Coriolis mass flowmeter coil fixing support

Abstract

The invention discloses a Coriolis force mass flowmeter coil fixing support, and relates to the technical field of flowmeter coil fixing supports, the Coriolis force mass flowmeter coil fixing support comprises a winding roll, a clamping bin is fixed on the side wall of the winding roll, sliding rods are arranged in sliding grooves in the two sides of the bin, the sliding rods are sleeved with clamping jaw reset springs, and clamping jaws penetrate through the sliding rods through sliding holes and can slide along the sliding rods; a handle on the clamping jaw penetrates through a through groove of the clamping bin, a clamping hook on the handle is locked with a clamping plate in the lock catch bin in a matched mode, the clamping plate is in linkage through a clamping plate reset spring, an avoiding groove is formed in the winding roll, and at least three supports with semicircular supporting feet at the bottoms are hinged to one side of the winding roll through a support base in a damping mode. During use, the clamping jaw is opened by pulling the handle and is locked through the clamping plate, the clamping plate is lifted to unlock the handle after the coil is placed, the clamping jaw clamps the coil under the elastic force of the spring, and the coil can be disassembled by reverse operation. According to the support, the coil is rapidly clamped through the spring and the mechanical locking structure, the clamping time is shortened compared with a traditional mode, the support adapts to complex scenes, the maintenance efficiency is improved, and the service life reaches more than 5 years.

Description

Technical Field

[0001] The invention relates to the technical field of flowmeter coil fixing brackets, in particular to a Coriolis mass flowmeter coil fixing bracket. Background Art

[0002] As a core instrument in the industrial flow measurement field, Coriolis mass flowmeters are widely used in the petrochemical, pharmaceutical, and food industries due to their advantages of directly measuring mass flow and being unaffected by the fluid's physical properties. When the fluid passes through a vibrating measuring tube, it generates a Coriolis force proportional to the mass flow rate, which in turn causes a phase difference change in the measuring tube. This change is converted into an electrical signal by an electromagnetic detector and ultimately processed by a transmitter as flow data. The coil, a key component of the electromagnetic detector, has a direct impact on the accuracy of phase difference detection due to its fixed stability. Therefore, the structural design of the coil fixing bracket has become a technical pain point in the industry.

[0003] Early coil fixing brackets mostly used a rigid frame combined with bolt fastening. Although this solution has a simple structure, it has significant shortcomings: First, bolt tightening requires point-by-point operation, which makes installation efficiency low. The installation of a single bracket takes about 15 minutes, making it difficult to adapt to industrial batch deployment. Second, the rigid connection cannot buffer vibration. In the environment of pipeline fluid pulsation or equipment vibration, the coil is prone to displacement, resulting in measurement errors and failing to meet the precision requirements of high-end chemical scenarios.

[0004] With the increasing degree of industrial automation, some technologies have attempted to improve fixation through the use of elastic components. For example, a rubber cushion is added between the fixing frame and the coil, utilizing elastic deformation to absorb vibration energy. However, this solution still has fundamental flaws: the elasticity of the rubber cushion decays rapidly. After six months of use at temperatures above 60°C, its cushioning performance decreases by 30%, causing the coil to loosen. Furthermore, the compression of the rubber cushion is difficult to precisely control. If it is too tight, it can easily damage the coil insulation layer, while if it is too loose, the fixation will fail. In actual applications, measurement failures caused by cushion aging account for 42%.

[0005] In scenarios such as oil refining and natural gas transportation, the measurement environment presents multi-dimensional complexity: on the one hand, the fluid pressure in the pipeline fluctuates widely, accompanied by mechanical vibrations; on the other hand, the on-site temperature span is large, and traditional metal brackets are prone to stress deformation due to thermal expansion and contraction, resulting in fixed accuracy drift.

[0006] In addition, the insufficient adjustment capability of existing brackets restricts the installation adaptability. Traditional brackets are mostly fixed structures. When the measuring tube is arranged in a small space or inclined pipeline, it is impossible to achieve angle fine adjustment. In summary, the existing Coriolis mass flowmeter coil fixing bracket has obvious technical bottlenecks in installation efficiency, vibration stability, environmental adaptability, etc., and it is urgent to develop a new fixing structure with quick clamping, dynamic buffering, and angle adjustment to adapt to the trend of industrial measurement towards high precision and intelligence. Summary of the Invention

[0007] The purpose of the present invention is to provide a Coriolis mass flowmeter coil fixing bracket, which drives the clamping claw to slide on the sliding rod by pulling the handle, compressing the clamping claw reset spring. At this time, the hook and the clamping plate cooperate to lock to fix the position of the clamping claw, so that the clamping claw is opened to facilitate the placement of the coil; when the clamping plate handle is lifted to release the lock, the clamping claw automatically clamps to the winding reel under the action of the reset spring force, continuously pressing the coil to achieve fixation.

[0008] To achieve the above object, the present invention provides the following technical solutions: A Coriolis mass flowmeter coil fixing bracket includes a winding reel, a coil clamp is provided on the winding reel, and is characterized in that a clamping bin is fixedly installed on one side wall of the winding reel, opposite sliding grooves are provided on both sides of the clamping bin, sliding rods are provided in the sliding grooves on both sides, clamping claws are slidably installed in the sliding grooves on both sides, the clamping claws are provided with sliding holes, and the sliding holes are correspondingly inserted into the sliding rods; a clamping claw reset spring is fitted on the sliding rod, and both ends of the clamping claw reset spring are respectively fixedly installed to one end of the sliding groove and the clamping claw.

[0009] A through slot is provided on the upper side of the clamping bin shell, and the clamping claw is fixedly mounted with a handle facing the side of the clamping bin shell. The handle passes through the through slot and extends to a certain length.

[0010] A clamping hook is arranged on the handle toward the outside of the clamping bin.

[0011] Locking compartments are provided at both ends of the outer side of the locking compartment shell, and through holes are provided through the locking compartment corresponding to the hook positions, and the through holes extend upward to the top of the locking compartment; the card plate is inserted from the through hole at the top of the locking compartment, and a card plate handle is provided at the upper end of the card plate, and a card plate reset spring is provided at the lower end of the handle, and both ends of the card plate reset spring are fixedly installed to the lower end of the handle and the locking compartment respectively.

[0012] There are multiple card plate return springs, which are symmetrically distributed on both sides of the card plate.

[0013] Avoidance grooves are provided on both side walls of the cable reel corresponding to the positions of the clamping claws.

[0014] A bracket seat is fixedly installed on one side of the winding drum, and at least three brackets are hingedly connected to the bracket seat with damping.

[0015] A support foot is provided at the bottom of the bracket, and the support foot is semicircular.

[0016] To use, first secure the reel using the semicircular feet at the bottom of the bracket. Pull the handles to the sides, inserting the clip into the hook and locking it, securing the clamps to the ends of the clamping compartment. Next, secure one end of the coil to the reel's coil clamp and wind the coil. Pull the clip handle to release the clip from the hook. The spring force causes the clamps to clamp against the reel, continuously compressing the coil. To disassemble, similarly pull the handles to the sides, inserting the clip into the hook and locking it, securing the clamps to the ends of the clamping compartment. Release the coil to complete disassembly.

[0017] Compared with the prior art, the present invention has the following beneficial effects: Improved installation convenience: The linkage design of pulling the handle and locking the clamping plate allows the coil to be clamped without additional tools. The clamping time is shortened by more than 60% compared to traditional bolt fixing methods. The preload force of the clamping jaw return spring can automatically compensate for loosening caused by vibration.

[0018] Enhanced vibration stability: The clamping jaws continuously compress the coil under spring force. In a vibration environment with an amplitude of 0.5mm and a frequency of 50Hz, the coil position offset is measured to be less than 0.3mm. Compared with existing fixed plate assembly solutions, this reduces measurement error and meets the high-precision measurement needs of the petrochemical industry.

[0019] Flexibility in angle adjustment: The bracket base is hinged to at least three brackets through damping, which can be positioned arbitrarily within the range of 0-90°. The semicircular design of the support feet allows for tilted installation within 10°, which is suitable for complex pipeline layouts. Traditional brackets are mostly fixed and have limited installation scenarios.

[0020] Reduced maintenance costs: The mechanical locking structure of the card plate and the hook does not require electric drive and has a service life of more than 5 years. When disassembling, you only need to pull the card plate handle to unlock it, which improves maintenance efficiency compared to traditional solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of a coil fixing bracket of a Coriolis mass flowmeter according to the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of a coil fixing bracket of a Coriolis mass flowmeter according to the present invention; Figure 3 This is a schematic diagram of the front three-dimensional structure of a clamping compartment of a coil fixing bracket of a Coriolis mass flowmeter according to the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the back side of the clamping compartment of a coil fixing bracket of a Coriolis mass flowmeter according to the present invention; Figure 5 This is a structural schematic diagram of a locking compartment of a coil fixing bracket of a Coriolis mass flowmeter according to the present invention; Figure 6This is a cross-sectional schematic diagram of a locking state of a locking compartment of a coil fixing bracket of a Coriolis mass flowmeter according to the present invention; In the figure: 1. Winding reel; 2. Clamping compartment; 3. Clamping claw; 4. Locking compartment; 5. Bracket seat; 11. Coil clamp; 12. Avoidance groove; 21. Sliding groove; 22. Sliding rod; 23. Clamping claw return spring; 24. Through groove; 31. Sliding hole; 32. Handle; 33. Hook; 41. Card; 42. Card handle; 43. Card return spring; 51. Bracket; 52. Support foot. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be fully described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] like Figure 1-6 As shown, a Coriolis mass flowmeter coil fixing bracket includes a winding reel 1, and a coil clamp 11 is provided on the winding reel 1. It is characterized in that a clamping bin 2 is fixedly installed on one side wall of the winding reel 1, and opposite sliding grooves 21 are provided on both sides of the clamping bin 2, and sliding rods 22 are provided in the sliding grooves 21 on both sides. Clamps 3 are slidably installed in the sliding grooves 21 on both sides, and the clamps 3 are provided with sliding holes 31, and the sliding holes 31 are correspondingly inserted into the sliding rods 22; a clamping jaw reset spring 23 is fitted on the sliding rod 22, and both ends of the clamping jaw reset spring 23 are respectively fixedly installed to one end of the sliding groove 21 and the clamping jaw 3.

[0024] A through slot 24 is provided on the upper side of the housing of the clamping bin 2 , and a handle 32 is fixedly installed on the clamping jaw 3 toward the side of the housing of the clamping bin 2 . The handle 32 passes through the through slot 24 and extends to a certain length.

[0025] A hook 33 is provided on the handle 32 toward the outside of the clamping compartment.

[0026] The locking chamber 4 is provided at both ends of the outer side of the shell of the clamping chamber 2, and a through hole is provided through the locking chamber 4 corresponding to the position of the hook 33, and the through hole extends upward to the top of the locking chamber 4; the card plate 41 is inserted from the through hole at the top of the locking chamber 4, and a card plate handle 42 is provided at the upper end of the card plate 41, and a card plate return spring 43 is provided at the lower end of the handle 42, and the two ends of the card plate return spring 43 are respectively fixedly installed to the lower end of the handle 42 and the locking chamber 4.

[0027] There are multiple card plate return springs 43 symmetrically distributed on both sides of the card plate.

[0028] Avoidance grooves 12 are provided on both side walls of the cable reel 1 corresponding to the positions of the clamping jaws 3 .

[0029] A bracket seat 5 is fixedly mounted on one side of the cable reel 1 , and at least three brackets 51 are hingedly connected to the bracket seat 5 in a damping manner.

[0030] A support leg 52 is provided at the bottom of the bracket 51 and the support leg 52 is semicircular.

[0031] The specific implementation method is as follows: During implementation, first fix the cable reel 1 to the target installation surface through the semicircular support feet 52 at the bottom of the bracket seat 5. The curved surface design of the support feet 52 can adapt to the installation inclination deviation within ±5°. Then, manually pull the handle 32 that passes through the through slot 24 of the clamping chamber 2 to both sides. At this time, the clamping jaw 3 slides outward along the sliding rod 22 in the sliding slot 21, stretching the clamping jaw reset spring 23 on the sliding rod 22. At the same time, the hook 33 on the handle 32 moves to align with the through hole at the top of the locking chamber 4. Insert the clamping plate 41 from the top of the locking chamber 4 into the through hole, so that the lower end of the clamping plate 41 is clamped into the groove of the hook 33. The clamping jaw 3 is now fixed at both ends of the clamping chamber 2. The inner spacing of the clamping jaw 3 is larger than the outer diameter of the coil to facilitate the placement of the coil.

[0032] Then, fix one end of the coil to the coil clamp 11 of the winding reel 1, and wind the coil evenly along the circumference of the winding reel 1. The coil lead passes through the avoidance groove 12 on the two side walls of the winding reel 1 corresponding to the position of the clamping jaw 3. After winding is completed, pull the clamping plate handle 42 upwards, compressing the clamping plate return spring 43 to disengage the clamping plate 41 from the hook 33. The clamping jaw 3, which has lost its lock, slides toward the winding reel 1 under the elastic force of the clamping jaw return spring 23. Its inner curved surface fits tightly against the outer wall of the coil, forming a continuous pressing force to ensure that the coil does not move in a vibrating environment.

[0033] When the coil needs to be removed, the above operation of pulling the handle 32 to both sides is repeated to align the hook 33 with the through hole at the top of the locking chamber 4 again. The clamping plate 41 is inserted to lock the clamping jaw 3. At this time, the clamping jaw 3 opens to the initial position, releasing the pressure on the coil, and the coil can be easily loosened and removed from the coil clamp 11. During the entire process, the bracket seat 5 achieves 0-90° angle adjustment through at least three brackets 51 connected by damping hinges. The damping hinge can self-lock at any angle, and the linear contact design of the semicircular support feet 52 ensures support stability at different installation angles.

Claims

1. A Coriolis mass flowmeter coil fixing bracket, comprising a winding drum (1), wherein a coil clamp (11) is provided on the winding drum (1), characterized in that: A clamping bin (2) is fixedly installed on one side wall of the winding reel (1), and opposite sliding grooves (21) are provided on both sides of the clamping bin (2), and sliding rods (22) are provided in the sliding grooves (21) on both sides. Clamping claws (3) are slidably installed in the sliding grooves (21) on both sides, and the clamping claws (3) are provided with sliding holes (31), and the sliding holes (31) are correspondingly inserted into the sliding rods (22); a clamping claw reset spring (23) is fitted on the sliding rods (22), and both ends of the clamping claw reset spring (23) are fixedly installed on one end of the sliding groove (21) and the clamping claw (3) respectively.

2. The Coriolis mass flowmeter coil fixing bracket according to claim 1, characterized in that: A through slot (24) is provided on the upper side of the housing of the clamping bin (2), and a handle (32) is fixedly installed on the clamping jaw (3) toward the side of the housing of the clamping bin (2), and the handle (32) passes through the through slot (24) and extends to a certain length.

3. The Coriolis mass flowmeter coil fixing bracket according to claim 2, characterized in that: A hook (33) is provided on the handle (32) facing the outside of the clamping compartment.

4. The Coriolis mass flowmeter coil fixing bracket according to claim 3, characterized in that: The locking chamber (4) is provided at both ends of the outer side of the housing of the clamping chamber (2), and a through hole is provided through the locking chamber (4) corresponding to the position of the hook (33), and the through hole extends upward to the top of the locking chamber (4); the card plate (41) is inserted from the through hole at the top of the locking chamber (4), and a card plate handle (42) is provided at the upper end of the card plate (41), and a card plate return spring (43) is provided at the lower end of the handle (42), and the two ends of the card plate return spring (43) are fixedly mounted to the lower end of the handle (42) and the locking chamber (4), respectively.

5. The Coriolis mass flowmeter coil fixing bracket according to claim 4, characterized in that: There are multiple card plate return springs (43) symmetrically distributed on both sides of the card plate.

6. The Coriolis mass flowmeter coil fixing bracket according to claim 1, characterized in that: Avoidance grooves (12) are provided on both side walls of the cable reel (1) at positions corresponding to the clamping claws (3).

7. The Coriolis mass flowmeter coil fixing bracket according to claim 1, characterized in that: A bracket seat (5) is fixedly mounted on one side of the cable reel (1), and at least three brackets (51) are hingedly connected to the bracket seat (5).

8. The Coriolis mass flowmeter coil fixing bracket according to claim 7, characterized in that: A support foot (52) is provided at the bottom of the bracket (51), and the support foot (52) is semicircular.

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