Shafting centering system and regulation and control method

Abstract

The invention discloses a shafting centering system and a regulation and control method, and belongs to the technical field of shafting centering of heavy equipment. The shafting centering device and the shafting centering method solve the technical problems of high requirements on operators and low centering efficiency of the existing shafting centering device and the existing shafting centering method. The first wedge-shaped block is installed on the top face of the first supporting plate, the conical surface sliding block is installed on the first wedge-shaped block, a lead screw in the lead screw stepping motor is connected with the first wedge-shaped block, the second wedge-shaped block is installed on the conical surface sliding block in a sliding mode, and vertical movement of the second wedge-shaped block is achieved by starting and stopping the lead screw stepping motor. The hydraulic height adjusting mechanism comprises a base, a supporting rod, a height hydraulic cylinder and a second supporting plate, one end of the supporting rod is connected with the second supporting plate, one end of the height hydraulic cylinder is connected with the supporting rod, and the other ends of the supporting rod and the height hydraulic cylinder are connected with the base; the displacement adjusting mechanism comprises an integrated block, a servo valve and a hydraulic cylinder, and the integrated block controls the hydraulic cylinder to complete telescopic action through the servo valve. And the working efficiency is improved. The shaft centering device is used for shaft centering of the heavy equipment.

Description

Technical Field

[0001] The invention relates to a shaft system centering system and a control method, belonging to the technical field of heavy equipment shaft system centering. Background Art

[0002] Shaft alignment is an important part of the installation and maintenance of mechanical equipment. Good alignment can reduce the distortion and wear of equipment, improve operating efficiency, reduce the vibration and noise indicators of mechanical transmission shafts, and improve the safety and service life of equipment. This is of great significance to ensuring the continuity and reliability of industrial production.

[0003] Common measurement methods for the axial and radial misalignment values ​​of the input and output ends include directly using a laser alignment instrument to measure on the flange end face, and also designing a special shaft interface tooling to connect the laser alignment instrument or dial indicator for measurement. For example, Chinese patents CN2143856U "A centering device", CN201559796U "Dummy shaft component for aligning the shaft system of active equipment and passive equipment" and CN220145203U "A machine pump shaft system alignment adjustment auxiliary device" use specially designed clamp tooling, dummy shaft tooling and auxiliary extension shaft tooling combined with a measuring device to obtain the shaft system misalignment value.

[0004] For the adjustment of misalignment, the common methods at present mainly include adding gaskets and wedge-shaped sliders for adjustment, and the misalignment in the front-to-back axial direction and the left-to-right direction is adjusted by manual adjustment bolts. The advantage of this method is that it can achieve micro-displacement adjustment, does not require the use of gaskets, and saves time and effort; the disadvantage is that for large and heavy equipment or test bench systems, it is easy to break and fail due to the limitations of thread tightening torque and preload, and it is very difficult to move the wedge block. In addition, the above methods all require personnel to operate manually on site. Considering the complex on-site environment and the inevitable leakage of oil, water and electricity, it poses a high test on the safety and environmental adaptability of the operator.

[0005] In summary, the existing shaft alignment equipment and adjustment methods have technical problems such as high requirements on operators and low alignment efficiency. Summary of the invention

[0006] The present invention aims to solve the technical problems that the existing shaft alignment equipment and adjustment methods have high requirements on operators and low alignment efficiency, and further provides a shaft alignment system, which includes heavy equipment, an electric height adjustment mechanism, a hydraulic height adjustment mechanism and a displacement adjustment mechanism; the electric height adjustment mechanism and the hydraulic height adjustment mechanism are both arranged on the lower side of the heavy equipment, and the four displacement adjustment mechanisms are evenly arranged on the sides of the heavy equipment;

[0007] The electric height adjustment mechanism comprises a first support plate, a first wedge block, a lead screw stepping motor, a conical slider and a second wedge block; the first wedge block is fixedly mounted on the top surface of the first support plate, the conical slider is slidably mounted on the first wedge block, the lead screw in the lead screw stepping motor is threadedly connected to the first wedge block, the second wedge block is slidably mounted on the conical slider, and the vertical movement of the second wedge block is achieved by starting and stopping the lead screw stepping motor;

[0008] The hydraulic height adjustment mechanism comprises a base, a support rod, a height hydraulic cylinder and a second support plate, one end of the support rod is connected to the second support plate, one end of the height hydraulic cylinder is connected to the support rod, and the other ends of the support rod and the height hydraulic cylinder are both connected to the base;

[0009] The displacement adjustment mechanism includes an integrated block, a servo valve and a hydraulic cylinder. The integrated block controls the hydraulic cylinder through the servo valve to complete the telescopic action.

[0010] As another improvement of the present invention, there are several electric height adjustment mechanisms, the number of hydraulic height adjustment mechanisms is the same as that of the electric height adjustment mechanisms, and the electric height adjustment mechanisms and hydraulic height adjustment mechanisms are evenly arranged in pairs on the lower side of the heavy equipment.

[0011] As another improvement of the present invention, it also includes a laser centering instrument and a central control data transmission platform. The laser centering instrument is electrically connected to the central control data transmission platform, and the central control data transmission platform is electrically connected to the integrated block. The laser centering instrument is used to measure the misalignment of heavy equipment.

[0012] As another improvement of the present invention, it also includes a displacement sensor, and the displacement sensor is used to monitor the displacement of the heavy equipment.

[0013] As another improvement of the present invention, the displacement adjustment mechanism is provided with two hydraulic cylinders, which are symmetrically arranged on both sides of the integrated block.

[0014] The present invention also provides a control method based on a shaft alignment system, comprising the following steps:

[0015] Step 1: Initially align the shaft system and re-measure it;

[0016] Step 2: Obtain the initial alignment data fed back by the laser alignment instrument and transmit it to the central control data transmission station;

[0017] Step 3: The central control data transmission platform sends displacement signals to the lead screw stepper motor and the integrated block respectively, thereby controlling the vertical movement of the second wedge block and the extension and retraction of the hydraulic cylinder;

[0018] Step 4: Monitor the displacement of heavy equipment through displacement sensors and feed the displacement information back to the central control data transmission station;

[0019] Step 5: The central control data transmission platform sends displacement signals to the lead screw stepper motor and integrated block according to the displacement information fed back by the displacement sensor to achieve centering adjustment of the heavy equipment.

[0020] Beneficial effects of the present invention:

[0021] The shaft alignment system of the present invention adjusts the displacement in the height direction of heavy equipment through the combined action of an electric height adjustment mechanism and a hydraulic height adjustment mechanism, thereby enhancing the reliability of the system; the misalignment in the front-to-back and left-to-right directions is adjusted by a displacement adjustment mechanism, and the hydraulic rods of the front-to-back and left-to-right hydraulic cylinders are controlled by the servo valve on the integrated block to adjust the misalignment to the design allowable range. The entire alignment adjustment process is fully automatic, and what the operator needs to do is to fix the above-mentioned adjustment mechanism in a suitable position in advance, and transmit the initial alignment data to the central console through the laser alignment instrument, and the adjustment devices in each direction start working. After the misalignment adjustment is finally completed, the operator removes the adjustment mechanism. It can enhance the safety and environmental adaptability of the operator, while improving the alignment efficiency and accuracy of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of an electric height adjustment mechanism.

[0023] Figure 2 It is a structural schematic diagram of a hydraulic height adjustment mechanism.

[0024] Figure 3 It is a structural schematic diagram of heavy equipment and displacement adjustment mechanism. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the examples of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention. In the description of the present invention, it should be explained that the positional relationship indicated by the terms "upper", "lower", etc. is only based on the positional relationship of the orientation shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the referred components have a specific orientation, are constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0026] Specific implementation method 1: Combination Figures 1 to 3The present embodiment is described as a shaft alignment system, characterized in that it comprises a heavy equipment 1, an electric height adjustment mechanism 2, a hydraulic height adjustment mechanism 3 and a displacement adjustment mechanism 4; the electric height adjustment mechanism 2 and the hydraulic height adjustment mechanism 3 are both arranged on the lower side of the heavy equipment 1, and the four displacement adjustment mechanisms 4 are evenly arranged on the sides of the heavy equipment 1;

[0027] The electric height adjustment mechanism 2 includes a first support plate 21, a first wedge block 22, a lead screw stepping motor 23, a conical slider 24, and a second wedge block 25; the first wedge block 22 is fixedly mounted on the top surface of the first support plate 21, the conical slider 24 is slidably mounted on the first wedge block 22, the lead screw in the lead screw stepping motor 23 is threadedly connected to the first wedge block 22, the second wedge block 25 is slidably mounted on the conical slider 24 and limits the lateral displacement of the second wedge block, and the vertical movement of the second wedge block 25 is achieved by starting and stopping the lead screw stepping motor 23;

[0028] The hydraulic height adjustment mechanism 3 includes a base 31, a support rod 32, a height hydraulic cylinder 33 and a second support plate 34. One end of the support rod 32 is connected to the second support plate 34, one end of the height hydraulic cylinder 33 is connected to the support rod 32, and the other ends of the support rod 32 and the height hydraulic cylinder 33 are both connected to the base 31.

[0029] The displacement adjustment mechanism 4 includes an integrated block 41, a servo valve and a hydraulic cylinder 42. The integrated block 41 controls the hydraulic cylinder 42 through the servo valve to complete the telescopic action.

[0030] The adjustment of the displacement in the height direction is achieved through the combined action of the electric height adjustment mechanism and the hydraulic height adjustment mechanism. The hydraulic height adjustment mechanism is used to balance the weight of most heavy equipment, and the electric height adjustment mechanism is used to slightly adjust the misalignment of the heavy equipment in the height direction. The misalignment in the front and rear and left and right directions is adjusted by the front and rear and left and right displacement adjustment mechanism of the heavy equipment. The servo valve on the integrated block controls the hydraulic rods of the front and rear and left and right hydraulic cylinders to adjust the misalignment to the design allowable range. The entire centering adjustment process is fully automatic. What the operator needs to do is to fix the above adjustment mechanism in a suitable position in advance, and transmit the initial centering data to the central console through the laser centering instrument. The adjustment devices in all directions start working. After the misalignment adjustment is finally completed, the operator removes the adjustment mechanism. It can enhance the safety and environmental adaptability of the operator, while improving the centering efficiency and accuracy of the system.

[0031] Specific implementation method 2: Combination Figures 1 to 3This embodiment is described. The difference between this embodiment and the first embodiment is that the number of electric height adjustment mechanisms 2 is set to be several, the number of hydraulic height adjustment mechanisms 3 is the same as the electric height adjustment mechanism 2, and the electric height adjustment mechanism 2 and the hydraulic height adjustment mechanism 3 are evenly arranged in pairs on the lower side of the heavy equipment 1. The use of the electric height adjustment mechanism 2 and the hydraulic height adjustment mechanism 3 in pairs reduces the pressure on the electric height adjustment mechanism and prevents the screw thread of the electric height adjustment mechanism from being crushed. The other components and connection methods are the same as those of the first embodiment.

[0032] Specific implementation method three: Combination Figures 1 to 3 This embodiment is described. The difference between this embodiment and the specific embodiment 1 is that this embodiment also includes a laser centering instrument and a central control data transmission platform. The laser centering instrument is electrically connected to the central control data transmission platform, and the central control data transmission platform is electrically connected to the integrated block 41. The laser centering instrument is used to measure the misalignment of the heavy equipment 1. Other components and connection methods are the same as those of the specific embodiment 1 or 2.

[0033] Specific implementation method four: Combination Figures 1 to 3 This embodiment is described. The difference between this embodiment and the first embodiment is that this embodiment further includes a displacement sensor, which is used to monitor the displacement of the heavy equipment 1. Other components and connection methods are the same as any one of the first to third embodiments.

[0034] Specific implementation method five: Combination Figures 1 to 3 This embodiment is described. The difference between this embodiment and the first embodiment is that the displacement adjustment mechanism 4 has two hydraulic cylinders 42, which are symmetrically arranged on both sides of the integrated block 41. The symmetrical arrangement of the two hydraulic cylinders 42 makes the heavy equipment more evenly stressed and improves the working efficiency. The other components and connection methods are the same as any one of the first to fourth embodiments.

[0035] Specific implementation method five: Combination Figures 1 to 3 This embodiment describes a control method. The control method is based on a shaft alignment system described in the fourth embodiment and includes the following steps:

[0036] Step 1: Perform initial alignment of the shaft system and remeasure; make sure that the initial height misalignment is ≤1mm, the front-to-back misalignment is ≤1mm, and the left-to-right misalignment is ≤1mm.

[0037] Step 2: Obtain the initial alignment data fed back by the laser alignment instrument and transmit it to the central control data transmission station;

[0038] Step 3: The central control data transmission platform sends displacement signals to the lead screw stepper motor 23 and the integrated block 41 respectively, thereby controlling the vertical movement of the second wedge block 25 and the extension and retraction of the hydraulic cylinder 42; the lead screw converts the precise rotational motion into linear motion through the wedge slider, thereby driving the first support plate connected to the wedge slider to move in the height direction, and finally realizing the misalignment adjustment in the height direction;

[0039] The integrated block controls the extension and retraction displacement of the hydraulic cylinder hydraulic rod through the servo valve, ultimately achieving misalignment adjustment in the front, rear, left and right directions;

[0040] Step 4: Monitor the displacement of the heavy equipment 1 through the displacement sensor and feed the displacement information back to the central control data transmission station;

[0041] Step 5: The central control data transmission platform sends displacement signals to the lead screw stepper motor 23 and the integrated block 41 respectively according to the displacement information fed back by the displacement sensor. Steps 4 and 5 can be executed cyclically until the centering adjustment of the heavy equipment 1 is achieved.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A shaft alignment system, characterized in that It comprises a heavy equipment (1), an electric height adjustment mechanism (2), a hydraulic height adjustment mechanism (3) and a displacement adjustment mechanism (4); the electric height adjustment mechanism (2) and the hydraulic height adjustment mechanism (3) are both arranged on the lower side of the heavy equipment (1), and the four displacement adjustment mechanisms (4) are evenly arranged on the sides of the heavy equipment (1); The electric height adjustment mechanism (2) comprises a first support plate (21), a first wedge block (22), a lead screw stepping motor (23), a conical slider (24) and a second wedge block (25); the first wedge block (22) is fixedly mounted on the top surface of the first support plate (21), the conical slider (24) is slidably mounted on the first wedge block (22), a lead screw in the lead screw stepping motor (23) is threadedly connected to the first wedge block (22), the second wedge block (25) is slidably mounted on the conical slider (24), and the vertical movement of the second wedge block (25) is achieved by starting and stopping the lead screw stepping motor (23); The hydraulic height adjustment mechanism (3) comprises a base (31), a support rod (32), a height hydraulic cylinder (33) and a second support plate (34); one end of the support rod (32) is connected to the second support plate (34); one end of the height hydraulic cylinder (33) is connected to the support rod (32); and the other ends of the support rod (32) and the height hydraulic cylinder (33) are both connected to the base (31); The displacement adjustment mechanism (4) comprises an integrated block (41), a servo valve and a hydraulic cylinder (42); the integrated block (41) controls the hydraulic cylinder (42) through the servo valve to complete the telescopic action.

2. A shaft alignment system according to claim 1, characterized in that The number of electric height adjustment mechanisms (2) is several, the number of hydraulic height adjustment mechanisms (3) is the same as the number of electric height adjustment mechanisms (2), and the electric height adjustment mechanisms (2) and hydraulic height adjustment mechanisms (3) are evenly arranged in pairs on the lower side of the heavy equipment (1).

3. A shaft alignment system according to claim 2, characterized in that It also includes a laser centering instrument and a central control data transmission platform. The laser centering instrument is electrically connected to the central control data transmission platform, and the central control data transmission platform is electrically connected to the integrated block (41). The laser centering instrument is used to measure the misalignment of the heavy equipment (1).

4. A shaft alignment system according to claim 3, characterized in that It also includes a displacement sensor, which is used to monitor the displacement of the heavy equipment (1).

5. The shaft alignment system according to claim 1, characterized in that: The displacement adjustment mechanism (4) is provided with two hydraulic cylinders (42), and the two hydraulic cylinders (42) are symmetrically arranged on both sides of the integrated block (41).

6. A control method, characterized in that: The control method is based on the shaft alignment system according to claim 4, and comprises the following steps: Step 1: Initially align the shaft system and re-measure it; Step 2: Obtain the initial alignment data fed back by the laser alignment instrument and transmit it to the central control data transmission station; Step 3: The central control data transmission platform sends displacement signals to the lead screw stepping motor (23) and the integrated block (41) respectively, thereby controlling the vertical movement of the second wedge block (25) and the extension and retraction of the hydraulic cylinder (42); Step 4: monitor the displacement of the heavy equipment (1) through the displacement sensor and feed the displacement information back to the central control data transmission station; Step 5: The central control data transmission platform sends displacement signals to the lead screw stepping motor (23) and the integrated block (41) respectively according to the displacement information fed back by the displacement sensor, so as to realize the centering adjustment of the heavy equipment (1).

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