Metering pump drive mounting structure

Abstract

The application relates to a metering pump transmission device mounting structure, which comprises a spinning box, a portal frame, an adjusting assembly and a metering pump transmission device; the adjusting assembly is fixedly installed on the portal frame and comprises a large channel steel welded on the portal frame, a horizontal adjusting plate locked and installed on the large channel steel and horizontal adjusting mechanisms fixedly installed on the left and right sides of the large channel steel; front and rear waist grooves extending front and back are milled on the horizontal adjusting plate; left and right waist grooves extending left and right are milled on the large channel steel; and the horizontal adjusting plate is fixedly connected with the large channel steel through fastening screws penetrating through the front and rear waist grooves and the left and right waist grooves; the metering pump transmission device is located on the portal frame and comprises a motor assembly, a transmission shaft connected with the motor assembly and the metering pump transmission respectively, and the motor assembly is fixedly connected with the horizontal adjusting plate. The metering pump transmission device mounting structure is adjusted in the left-right, front-rear and up-down directions, so that installation is more efficient and more accurate, and the working quality and working efficiency are improved.

Description

Technical Field

[0001] This application relates to the field of textile technology, and in particular to an installation structure for a metering pump drive device. Background Technology

[0002] In chemical fiber spinning equipment, the metering pump is a core precision component connecting "melt transport" and "spinning," its core function being to achieve "quantitative, pressure-stabilized, and uniform" transport of the high-temperature melt. Metering pumps are typically driven by motors or other transmission devices, forming a core power unit integrating precision mechanics, electric drive, intelligent control, and materials science. After installing or replacing a metering pump, the initial position of the transmission device usually needs to be adjusted. Adjustments to the transmission device's position are also frequently necessary when problems arise during equipment operation, such as flow fluctuations, decreased metering accuracy, abnormal equipment vibration or noise, or accelerated component wear.

[0003] As the "heart" of the spinning process, the transmission device directly determines whether the metering pump can operate accurately, stably, and reliably, which in turn determines the output of the spinning line, product quality (especially fineness uniformity and breakage rate), and operating efficiency. Any minute fluctuation in rotational speed or transmission clearance will directly affect the supply of the spinning melt or solution, leading to uneven fiber fineness (denier), breakage, fuzz, and other serious quality defects. Therefore, the transmission system must possess extremely high operational stability and dynamic synchronization accuracy—this is a fundamental prerequisite for ensuring high-quality spinning and a high yield rate on the production line.

[0004] The problem this application aims to solve is how to conveniently adjust the absolute concentricity between the motor's output shaft and the metering pump's input shaft. Any micron-level misalignment will be amplified under high-speed continuous operation, inducing abnormal vibration and periodic alternating stress. This will not only accelerate the wear of mechanical seals and bearings, but may also cause fatal malfunctions such as "pump jamming," leading to unplanned downtime and significant economic losses to continuous production. Summary of the Invention

[0005] To address the difficulty in adjusting alignment deviations during the installation process, this application designs an installation structure for a metering pump drive device, which effectively improves the accuracy and efficiency of installation, thereby significantly increasing work efficiency while ensuring assembly quality.

[0006] Therefore, this utility model provides a metering pump transmission device installation structure, including a spinning box body, which is fixedly installed in a foundation pit, and a metering pump and a spinning assembly are installed inside the spinning box body.

[0007] The gantry crane spans across both sides of the foundation pit;

[0008] An adjustment assembly is fixedly installed on the gantry frame. The adjustment assembly includes a large channel steel welded to the gantry frame, a horizontal adjustment plate locked onto the large channel steel, and a horizontal adjustment mechanism fixedly installed on the left and right sides of the large channel steel. The horizontal adjustment plate is milled with front and rear waist grooves extending forward and backward, and the large channel steel is milled with left and right waist grooves extending left and right. The horizontal adjustment plate is fixedly connected to the large channel steel by fastening screws passing through the front and rear waist grooves and the left and right waist grooves.

[0009] The metering pump drive device is located on the gantry frame. The metering pump drive device includes a motor assembly and a drive shaft that is connected to the motor assembly and the metering pump respectively. The motor assembly is fixedly connected to the horizontal adjustment plate.

[0010] In some embodiments, the leveling mechanism includes a pair of adjusting blocks fixedly connected to the left and right sides of the large channel steel, and a pair of long screws threadedly connected to the pair of adjusting blocks. The ends of the pair of long screws abut against the left and right sides of the leveling plate, and the other ends of each long screw are fixed by two nuts.

[0011] In some embodiments, the adjusting block protrudes beyond the large channel steel and its top is higher than the horizontal adjusting plate.

[0012] In some embodiments, the front and rear waist grooves correspond one-to-one with the left and right waist grooves.

[0013] In some embodiments, the motor assembly has an output shaft, the output shaft is connected to the upper end of the drive shaft via a universal joint, the lower end of the drive shaft has a drive shaft head, the upper part of the metering pump has a coupling, and the drive shaft head is inserted into the coupling.

[0014] In some embodiments, the drive shaft includes a sliding sleeve with one end fixedly connected to the universal joint and a main shaft with its upper end slidably inserted into the sliding sleeve. The lower end of the sliding sleeve is threaded with a set screw, the end of which passes through the sliding sleeve and abuts against the outer circumferential surface of the main shaft. The drive shaft head is located at the lower end of the main shaft.

[0015] In some embodiments, the upper part of the spindle has a planar cutting surface parallel to the axial direction, the end of the set screw abuts against the planar cutting surface, and a portion of the outer wall of the sliding sleeve is recessed inward parallel to the planar cutting surface.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This device achieves positional adjustment in the front-back, left-right, and up-down directions through the front and rear grooves on the horizontal adjustment plate, the left and right grooves on the large channel steel, and the axial transmission chain consisting of the sliding sleeve, main shaft, and transmission shaft head, thus forming a complete three-dimensional adjustment system. Furthermore, fine-tuning is achieved using adjusting blocks and screws. This design comprehensively covers the adjustment needs of all spatial degrees of freedom, ultimately significantly improving the accuracy, efficiency, and overall reliability of installation and positioning. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of an installation structure for a metering pump drive device provided in an embodiment of this application.

[0019] Figure 2 for Figure 1 A magnified view of region I in the diagram.

[0020] Figure 3 for Figure 1 A magnified view of region II in the diagram.

[0021] Figure 4 This is a top view of a horizontal adjustment plate provided in an embodiment of this application.

[0022] Figure 5 for Figure 4 The sectional view along AA in the figure.

[0023] Figure 6 This is a top view of a large channel steel provided in an embodiment of this application.

[0024] Among them, 100, metering pump drive device installation structure; 1, spinning box; 2, foundation pit; 3, gantry frame; 4, large channel steel; 5, horizontal adjustment plate; 221, front and rear waist grooves; 231, left and right waist grooves; 6, horizontal adjustment mechanism; 61, adjustment block; 62, long screw; 7, metering pump drive device; 71, motor assembly; 701, output shaft; 72, drive shaft; 721, drive shaft head; 722, sliding sleeve; 723, main shaft; 724, set screw; 725, flat cutting surface; 73, universal joint; 8, metering pump; 801, coupling. Detailed Implementation

[0025] To illustrate the technical content, structural features, achieved objectives, and effects of the invention in detail, the technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. In the following description, for illustrative purposes, numerous specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may also be implemented without these specific details or in one or more equivalent arrangements. Furthermore, the various exemplary embodiments may differ, but are not necessarily exclusive. For example, the specific shape, construction, and characteristics of the exemplary embodiments may be used or implemented in another exemplary embodiment without departing from the inventive concept.

[0026] This application relates to an installation structure for a metering pump drive device. By adjusting the left-right, front-back, and up-down directions, the rotation center of the motor is kept aligned with the rotation center of the metering pump, thus avoiding pump jamming, ensuring the stability of the drive device, and improving work quality and efficiency.

[0027] See Figures 1-6 The metering pump drive installation structure 100 includes a spinning box 1 fixedly installed in the foundation pit 2, a gantry frame 3 spanning both sides of the foundation pit 2, an adjustment assembly fixedly installed on the gantry frame 3, and a metering pump drive device 7 located on the gantry frame 3, wherein:

[0028] The spinning box 1 is equipped with a metering pump 8 and a spinning assembly.

[0029] The adjustment assembly includes a large channel steel 4 welded to the gantry frame 3, a horizontal adjustment plate 5 locked onto the large channel steel 4, and horizontal adjustment mechanisms 6 fixedly installed on the left and right sides of the large channel steel 3. The horizontal adjustment plate 6 is milled with front and rear extending grooves 221 for adjusting dimensions in both the front and rear directions. The large channel steel 3 is milled with left and right extending grooves 231 for adjusting dimensions in both the left and right directions. The positions of the front and rear grooves 221 and the left and right grooves 231 correspond one-to-one. The horizontal adjustment plate 6 is fixedly connected to the large channel steel 4 by fastening screws passing through the front and rear grooves 221 and the left and right grooves 231.

[0030] The metering pump drive device 7 includes a motor assembly 71 and a drive shaft 72 that is connected to both the motor assembly 71 and the metering pump 8. The motor assembly 71 is fixedly connected to the horizontal adjustment plate 5.

[0031] See Figure 2 , Figure 2 for Figure 1A partial enlarged view of area I shows that the horizontal adjustment mechanism 6 includes a pair of adjusting blocks 61 fixedly connected to the left and right sides of the large channel steel 4, and a pair of long screws 62 threadedly connected to the pair of adjusting blocks 61. The pair of adjusting blocks 61 protrude from the large channel steel 4, and their tops are higher than the horizontal adjustment plate 5. The ends of the pair of long screws 62 are respectively pressed against the left and right sides of the horizontal adjustment plate 5 for fine adjustment of the position of the horizontal adjustment plate 5. The other end of each long screw 62 is fixed by two nuts.

[0032] See Figure 3 , Figure 3 for Figure 1 A partial enlarged view of region II shows that the motor assembly 71 has an output shaft 701, which is connected to the upper end of the drive shaft 72 via a universal joint 73. The lower end of the drive shaft 72 has a drive shaft head 721, and the upper part of the metering pump 8 has a coupling 801, into which the drive shaft head 721 is inserted.

[0033] See also Figure 3 The drive shaft 72 includes a sliding sleeve 722 with one end fixedly connected to a universal joint 73, and a main shaft 723 with its upper end slidably inserted into the sliding sleeve 722. A set screw 724 is threadedly connected to the lower end of the sliding sleeve 722. The end of the set screw 724 passes through the sliding sleeve 722 and abuts against the outer circumferential surface of the main shaft 723. The drive shaft head 721 is located at the lower end of the main shaft 723. The upper part of the main shaft 723 has a planar cutting surface 725 parallel to the axial direction. The end of the set screw 724 abuts against this planar cutting surface 725. A portion of the outer wall of the sliding sleeve 722 is recessed inward parallel to the planar cutting surface 725. This structure allows for vertical position adjustment.

[0034] In this embodiment, one end of the drive shaft head 721 is inserted into the coupling 801 on the metering pump 8. Because this part operates for a long time, it is necessary to increase its hardness to prevent wear. It is quenched to make its hardness reach HRC55-60 degrees to ensure stable operation for a long time.

[0035] In this embodiment, during the installation and adjustment of the metering pump drive device, a plumb line is also needed to observe the parallelism between the plumb line and the drive shaft, and to adjust the position of the horizontal adjustment plate 5. The purpose of the adjustment is to ensure that the drive shaft is installed parallel to the plumb line. The adjustment method of the metering pump drive device installation structure 100 is as follows: First, a coarse adjustment is performed: the front and rear dimensions are adjusted by the front and rear grooves 221 on the horizontal adjustment plate 5, and the left and right dimensions are adjusted by the left and right grooves 231 on the large channel steel 4. After the coarse adjustment is completed, the horizontal adjustment plate 5 and the large channel steel 4 are fixed with fastening screws. Then, the large channel steel is welded to the gantry frame, thereby reducing vibration and increasing the stability of equipment operation. Finally, a fine adjustment is performed: after correcting the horizontal and vertical positions using a laser level, fine adjustments are made by adjusting the adjustment block 61 in conjunction with the long screw 62. Then, the vertical length is adjusted by the main shaft 723 and the sliding sleeve 722. After the adjustment is completed, it is fixed by the set screw 724, thereby realizing the position adjustment in the front-back, left-right, and vertical directions.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope. The scope of protection of the present invention is defined by the appended claims, specification, and their equivalents.

Claims

1. A metering pump drive device mounting structure, characterized in that, include: A spinning box is fixedly installed in the foundation pit, and a metering pump and a spinning assembly are installed inside the spinning box. The gantry crane spans across both sides of the foundation pit; An adjustment assembly is fixedly installed on the gantry frame. The adjustment assembly includes a large channel steel welded to the gantry frame, a horizontal adjustment plate locked onto the large channel steel, and a horizontal adjustment mechanism fixedly installed on the left and right sides of the large channel steel. The horizontal adjustment plate is milled with front and rear waist grooves extending forward and backward, and the large channel steel is milled with left and right waist grooves extending left and right. The horizontal adjustment plate is fixedly connected to the large channel steel by fastening screws passing through the front and rear waist grooves and the left and right waist grooves. The metering pump drive device is located on the gantry frame. The metering pump drive device includes a motor assembly and a drive shaft that is connected to the motor assembly and the metering pump respectively. The motor assembly is fixedly connected to the horizontal adjustment plate.

2. The metering pump drive device mounting structure according to claim 1, characterized in that, The horizontal adjustment mechanism includes a pair of adjusting blocks fixedly connected to the left and right sides of the large channel steel, and a pair of long screws threadedly connected to the pair of adjusting blocks. The ends of the pair of long screws abut against the left and right sides of the horizontal adjustment plate, and the other ends of each long screw are fixed by two nuts.

3. The metering pump drive device mounting structure according to claim 2, characterized in that, The adjusting block protrudes from the large channel steel, and its top is higher than the horizontal adjusting plate.

4. The metering pump drive device mounting structure according to claim 1, characterized in that, The positions of the front and rear waist grooves correspond one-to-one with the positions of the left and right waist grooves.

5. The metering pump drive device mounting structure according to claim 1, characterized in that, The motor assembly has an output shaft, which is connected to the upper end of the drive shaft via a universal joint. The lower end of the drive shaft has a drive shaft head, and the upper part of the metering pump has a coupling. The drive shaft head is inserted into the coupling.

6. The metering pump drive device mounting structure according to claim 5, characterized in that, The drive shaft includes a sliding sleeve with one end fixedly connected to the universal joint and a main shaft with its upper end slidably inserted into the sliding sleeve. The lower end of the sliding sleeve is threaded with a set screw, the end of which passes through the sliding sleeve and abuts against the outer circumferential surface of the main shaft. The drive shaft head is located at the lower end of the main shaft.

7. The metering pump drive device mounting structure according to claim 6, characterized in that, The upper part of the spindle has a planar cutting surface parallel to the axial direction, the end of the set screw abuts against the planar cutting surface, and part of the outer wall of the sliding sleeve is recessed inward parallel to the planar cutting surface.

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