Vertical small steam turbine alternating current lubricating oil pump motor test operation support

Abstract

The invention discloses a vertical small steam turbine alternating current lubricating oil pump motor test operation support, and relates to the technical field of lubricating oil pump motor operation and maintenance, the vertical small steam turbine alternating current lubricating oil pump motor test operation support comprises a placing plate, a connecting pile is fixedly connected to the lower side of the placing plate, a threaded telescopic rod is hinged to the lower side of the connecting pile, and a rubber foot pad is fixedly connected to the lower side of the threaded telescopic rod; a display screen is fixedly connected to the upper surface of the placing plate, a control module is arranged at the position, located on the right side of the display screen, of the upper surface of the placing plate, a fixing mechanism is arranged on the right side of the upper portion of the placing plate, and a load adjusting mechanism is arranged on the left portion of the upper side of the placing plate. In the pilot run process of the oil pump motor, the output end of the motor drives the load shaft to rotate, the structure on the left side of the load shaft rotates synchronously, the rotating load of the motor is increased, and the device has the advantages of being high in practicability and capable of rapidly completing maintenance and pilot run work of the lubricating oil pump motor.

Description

Technical Field

[0001] The invention relates to the technical field of operation and maintenance of a lubricating oil pump motor, and in particular to a vertical small steam turbine AC lubricating oil pump motor test support. Background Art

[0002] As an important power transmission equipment, the steam turbine AC lubricating oil pump motor needs regular maintenance and trial operation tests during long-term operation to ensure its working stability and reliability. The traditional operation and maintenance method usually requires the motor to be disassembled from the installation location and transported to a special test station for fixation, trial operation and adjustment. This process involves multiple lifting, handling and repositioning, which not only increases the operation and maintenance time, but may also cause equipment damage or accuracy deviation due to transportation and repeated installation;

[0003] The existing Chinese patent with publication number CN207559804U discloses a vertical small steam turbine AC lubricating oil pump motor test support, which can reduce the number of times of disassembly, wiring and lifting of the vertical small steam turbine AC lubricating oil pump motor during maintenance, reduce workload, save time and labor, improve work efficiency, and ensure the stability of the equipment;

[0004] However, the above device cannot make the lubricating oil pump motor more suitable for the working conditions during the trial operation, so the trial operation result has a large error with the actual operation;

[0005] Therefore, it is necessary to design a vertical small steam turbine AC lubricating oil pump motor test support which has strong practicality and can quickly complete the inspection and test run of the lubricating oil pump motor. Summary of the invention

[0006] The object of the present invention is to provide a vertical small steam turbine AC lubricating oil pump motor test support to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a vertical small steam turbine AC lubricating oil pump motor test support, comprising a placement plate, a connection pile is fixedly connected to the lower side of the placement plate, a threaded telescopic rod is hinged to the lower side of the connection pile, a rubber foot pad is fixedly connected to the lower side of the threaded telescopic rod, a display screen is fixedly connected to the upper surface of the placement plate, and a control module is arranged on the upper surface of the placement plate at the right side of the display screen, a fixing mechanism is arranged on the upper right side of the placement plate, and a load adjustment mechanism is arranged on the upper left side of the placement plate;

[0008] The fixing mechanism comprises a transmission assembly and a clamping rod on the transmission assembly, and the clamping rod can be deflected relative to the placement plate.

[0009] According to the above technical solution, the transmission assembly includes a hydraulic telescopic rod, one end of the hydraulic telescopic rod is hinged to the lower surface of the placement plate, the other end of the hydraulic telescopic rod is hinged to a hinged plate, the upper side of the hinged plate is fixedly connected to a rotating rod, the outer wall of the rotating rod is rotatably connected to a fixing frame through a bearing, the lower side of the fixing frame is fixedly connected to the upper side of the outer wall of the placement plate, and the outer wall of the rotating rod is also fixedly connected to the inner wall of one end of the clamping rod.

[0010] According to the above technical solution, four groups of connecting piles, threaded telescopic rods, and rubber foot pads are provided on the lower side of the placement plate, and four clamping rods are provided on the upper side of the placement plate. The four clamping rods are divided into two at the front of the upper side of the placement plate and two at the rear of the upper side of the placement plate, and the clamping rod at the front of the upper side of the placement plate and the clamping rod at the rear of the upper side of the placement plate are symmetrically arranged, and the upper ends of the clamping rods are bent toward the middle of the placement plate.

[0011] According to the above technical scheme, the load adjustment mechanism includes a load shaft, a vibration testing mechanism is arranged in the middle of the load shaft, a slide rail is fixedly connected to the outer wall of the left end of the load shaft, a slide groove penetrating front and rear is opened on the slide rail, the end of the slide rail away from the load shaft is fixedly connected to the motor, the output end of the motor is fixedly connected to the threaded rod, the end of the threaded rod away from the motor passes through the slide rail and is rotatably connected to the side of the inner wall of the slide groove away from the motor through a bearing, a counterweight block is slidably connected to the inner wall of the slide groove, a threaded hole is opened in the middle of the counterweight block, and the inner wall of the threaded hole on the counterweight block is threadedly connected to the outer wall of the threaded rod.

[0012] According to the above technical solution, slide rails are provided on the upper side and the lower side of the load shaft, and the counterweight block can slide relative to the slide rails under the drive of the motor and the threaded rod.

[0013] According to the above technical solution, the vibration testing mechanism includes a slide seat, the lower side of the slide seat is slidably connected to the upper surface of the placement plate, the upper side of the slide seat is fixedly connected to a spring, the upper side of the spring is fixedly connected to a support block, the inner wall of the support block is rotatably connected to the outer wall of the load shaft through a bearing, the front side of the outer wall of the spring is fixedly connected to a conductive tube, the upper end of the conductive tube is fixedly connected to a first contact, the front side of the slide seat is fixedly connected to a resistor rod, the lower end of the resistor rod is fixedly connected to a second contact, and the upper end of the resistor rod is inserted into the interior of the conductive tube.

[0014] According to the above technical solution, the display screen is electrically connected to the control module, the first contact is electrically connected to the power supply, and the second contact is electrically connected to the control module.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention is provided with a fixing mechanism, and when the steam turbine AC lubricating oil pump motor is tested for trial operation, the hydraulic telescopic rod is started to push the hinge plate, so that the hinge plate drives the rotating rod to deflect, and then drives the clamping rod to clamp and fix the oil pump motor, so that the motor is stably placed on the upper side of the placement plate, avoiding the test operation effect being affected by swinging or displacement, improving the stability and safety of the test, and at the same time reducing the additional handling of the motor during the operation and maintenance process, shortening the operation and maintenance time, and making the trial operation environment closer to the working environment;

[0016] By providing a load adjustment mechanism, during the trial operation of the oil pump motor, the motor output end drives the load shaft to rotate, so that the structure on the left side of the load shaft rotates synchronously, increasing the motor rotation load, and controlling the motor to drive the threaded rod to rotate through the control module, so that the counterweight block slides relative to the slide rail, and the distance between the load shaft and the counterweight block is adjusted to achieve simulated adjustment of the operating load, which can reproduce the load change caused by the change in the fluidity of the lubricating oil after the oil pump is cold started, so that the trial operation test is more in line with the actual use conditions and improves the reference value of the data;

[0017] By setting up a vibration test mechanism, during the operation of the oil pump motor, the vibration generated by the rotation of the load shaft drives the support block to shake up and down, causing the conductive tube to slide on the resistance rod, and adjusting the depth of the resistance rod inserted into the conductive tube to form a variable resistance signal, thereby measuring the vibration amplitude of the oil pump motor, and optimizing the counterweight balance by adjusting the position of the counterweight block, reducing the vibration during motor operation, improving the efficiency of operation and maintenance debugging, providing a precise adjustment basis for the subsequent installation counterweight, and reducing the debugging time;

[0018] By providing an electric heating tube, the upper side of the placement plate of the device can be heated to reach a simulated operating temperature, so that the motor is placed in a thermal environment close to actual working conditions during the test, thereby verifying the operating status of the motor under stable temperature conditions, improving the authenticity and reliability of the trial run test, making the test data more valuable for reference, and ensuring the operating stability of the motor after final installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 It is a schematic diagram of the lower structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the threaded telescopic rod of the present invention;

[0023] Figure 4 It is a schematic diagram of the fixing mechanism structure of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the load adjustment mechanism of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the vibration testing mechanism of the present invention;

[0026] Figure 7 It is a partial structural schematic diagram of the vibration testing mechanism of the present invention;

[0027] In the figure: 1. placement plate; 2. connecting pile; 3. threaded telescopic rod; 4. rubber foot pad; 5. display screen; 6. control module; 7. fixing mechanism; 8. load adjustment mechanism; 9. electric heating tube; 701. hydraulic telescopic rod; 702. hinge plate; 703. rotating rod; 704. fixing frame; 705. clamping rod; 801. load shaft; 802. vibration test mechanism; 803. slide rail; 804. motor; 805. threaded rod; 806. counterweight; 807. conductive slip ring; 201. slide seat; 202. spring; 203. support block; 204. conductive cylinder; 205. first contact; 206. resistor rod; 207. second contact. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments 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 other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-7 The present invention provides a technical solution: a vertical small steam turbine AC lubricating oil pump motor test support, comprising a placement plate 1, a connection pile 2 is fixedly connected to the lower side of the placement plate 1, a threaded telescopic rod 3 is hinged to the lower side of the connection pile 2, a rubber foot pad 4 is fixedly connected to the lower side of the threaded telescopic rod 3, a display screen 5 is fixedly connected to the upper surface of the placement plate 1, and a control module 6 is arranged on the upper surface of the placement plate 1 at the right side of the display screen 5, a fixing mechanism 7 is arranged on the upper right side of the placement plate 1, and a load adjustment mechanism 8 is arranged on the upper left side of the placement plate 1;

[0030] The fixing mechanism 7 includes a transmission assembly and a clamping rod 705 on the transmission assembly, the clamping rod 705 can be deflected relative to the placement plate 1, the transmission assembly includes a hydraulic telescopic rod 701, one end of the hydraulic telescopic rod 701 is hinged to the lower surface of the placement plate 1, the other end of the hydraulic telescopic rod 701 is hinged to a hinged plate 702, the upper side of the hinged plate 702 is fixedly connected to a rotating rod 703, the outer wall of the rotating rod 703 is rotatably connected to a fixing frame 704 through a bearing, the lower side of the fixing frame 704 is fixed to the upper side of the outer wall of the placement plate 1 The outer wall of the rotating rod 703 is also fixedly connected to the inner wall of one end of the clamping rod 705. Four groups of connecting piles 2, threaded telescopic rods 3, and rubber foot pads 4 are arranged on the lower side of the placement plate 1, and four clamping rods 705 are arranged on the upper side of the placement plate 1. The four clamping rods 705 are divided into two at the front of the upper side of the placement plate 1 and two at the rear of the upper side of the placement plate 1. The clamping rod 705 at the front of the upper side of the placement plate 1 is symmetrically arranged with the clamping rod 705 at the rear of the upper side of the placement plate 1, and the upper end of the clamping rod 705 is bent toward the middle of the placement plate 1;

[0031] When the steam turbine AC lubricating oil pump motor is operated and inspected, it is only necessary to lift the oil pump motor through the lifting device in the factory, and then place the device under the oil pump motor. The connecting pile 2 will limit the deflection angle of the threaded telescopic rod 3, so that the device can be placed stably. Then, the oil pump motor is placed on the upper side of the placement plate 1. At this time, the hydraulic telescopic rod 701 is started to push the hinge plate 702, so that the hinge plate 702 drives the rotating rod 703 to deflect. The deflection of the rotating rod 703 will drive the clamping rod 705 to deflect, so that the four clamping rods 705 clamp the oil pump motor on the upper surface of the placement plate 1, so that it is stably fixed, and then a trial operation test can be carried out, which reduces the transportation process of the oil pump motor during the operation and maintenance process, shortens the operation and maintenance time, and makes the trial operation environment closer to the working environment.

[0032] The load adjustment mechanism 8 includes a load shaft 801, a vibration test mechanism 802 is provided in the middle of the load shaft 801, a slide rail 803 is fixedly connected to the outer wall of the left end of the load shaft 801, a slide groove penetrating from front to back is provided on the slide rail 803, the end of the slide rail 803 away from the load shaft 801 is fixedly connected to the motor 804, the output end of the motor 804 is fixedly connected to the threaded rod 805, the end of the threaded rod 805 away from the motor 804 penetrates the slide rail 803 and is rotatably connected to the side of the inner wall of the slide groove away from the motor 804 through a bearing, a counterweight block 806 is slidably connected to the inner wall of the slide groove, a threaded hole is provided in the middle of the counterweight block 806, the inner wall of the threaded hole on the counterweight block 806 is threadedly connected to the outer wall of the threaded rod 805, the upper side of the load shaft 801 and the lower side of the load shaft 801 are both provided with slide rails 803, and the counterweight block 806 can slide relative to the slide rail 803 under the drive of the motor 804 and the threaded rod 805;

[0033] During the trial operation, the output end of the oil pump motor can be fixed to one end of the load shaft 801 by bolts, so that the oil pump motor drives the load shaft 801 and the structure on the left side of the load shaft 801 to rotate, thereby increasing the rotational load of the oil pump motor when it is running. In the process of the oil pump motor driving the load shaft 801 to rotate, since the control module 6 supplies power to the motor 804 through the conductive slip ring 807 and the wire, the control module 6 can control the motor 804 to drive the threaded rod 805 to rotate at the initial start of the oil pump motor, thereby causing the counterweight block 806 to slide from the side of the slide rail 803 away from the load shaft 801 to the side close to the load shaft 801. Since the distance between the counterweight block 806 and the load shaft 801 is shortened, the running load of the oil pump motor is reduced, thereby simulating the situation where the motor running load is reduced due to the increased fluidity of the lubricating oil after the oil pump is cold started, thereby making it more in line with actual usage.

[0034] The vibration testing mechanism 802 includes a slide 201, the lower side of the slide 201 is slidably connected to the upper surface of the placement plate 1, the upper side of the slide 201 is fixedly connected to a spring 202, the upper side of the spring 202 is fixedly connected to a support block 203, the inner wall of the support block 203 is rotatably connected to the outer wall of the load shaft 801 through a bearing, the front side of the outer wall of the spring 202 is fixedly connected to a conductive cylinder 204, the upper end of the conductive cylinder 204 is fixedly connected to a first contact 205, the front side of the slide 201 is fixedly connected to a resistor rod 206, the lower end of the resistor rod 206 is fixedly connected to a second contact 207, and the upper end of the resistor rod 206 is inserted into the interior of the conductive cylinder 204, the display screen 5 is electrically connected to the control module 6, the first contact 205 is electrically connected to the power supply, and the second contact 207 is electrically connected to the control module 6;

[0035] When the load shaft 801 is driven to rotate by the oil pump motor, the vibration on its surface will drive the support block 203 to shake up and down under the support of the spring 202, and then the support block 203 will drive the conductive tube 204 to slide on the resistance rod 206. Since the resistance rod 206 is inserted into the conductive tube 204, the longer the distance, the smaller the resistance. The vibration amplitude of the load shaft 801 and the oil pump motor during operation can be measured by the resistance fluctuation. Therefore, the vibration amplitude of the oil pump motor can be measured, and the position of the two counterweight blocks 806 can be adjusted to balance the weight and reduce the vibration, so as to debug the subsequent installation counterweight, thereby reducing the operation and maintenance time.

[0036] During use, the device can heat the upper side of the placement plate 1 through the electric heating tube 9 to simulate the operating temperature, thereby testing the operating stability of the motor, so that the device can be more in line with actual use conditions when performing fixed test operation on the motor.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vertical small steam turbine AC lubricating oil pump motor test stand, comprising a placement plate (1), a connection pile (2) is fixedly connected to the lower side of the placement plate (1), a threaded telescopic rod (3) is hinged to the lower side of the connection pile (2), and a rubber foot pad (4) is fixedly connected to the lower side of the threaded telescopic rod (3), characterized in that: The upper surface of the placement plate (1) is fixedly connected to a display screen (5), and a control module (6) is provided on the upper surface of the placement plate (1) at the right side of the display screen (5), a fixing mechanism (7) is provided on the upper right side of the placement plate (1), and a load adjustment mechanism (8) is provided on the upper left side of the placement plate (1); The fixing mechanism (7) comprises a transmission assembly and a clamping rod (705) on the transmission assembly, and the clamping rod (705) can be deflected relative to the placement plate (1).

2. A vertical small steam turbine AC lubricating oil pump motor test support according to claim 1, characterized in that: The transmission assembly comprises a hydraulic telescopic rod (701), one end of which is hinged to the lower surface of the placement plate (1), and the other end of which is hinged to a hinged plate (702). The upper side of the hinged plate (702) is fixedly connected to a rotating rod (703), and the outer wall of the rotating rod (703) is rotatably connected to a fixing frame (704) via a bearing. The lower side of the fixing frame (704) is fixedly connected to the upper side of the outer wall of the placement plate (1), and the outer wall of the rotating rod (703) is also fixedly connected to the inner wall of one end of a clamping rod (705).

3. A vertical small steam turbine AC lubricating oil pump motor test support according to claim 2, characterized in that: The lower side of the placement plate (1) is provided with four groups of connection piles (2), threaded telescopic rods (3), and rubber foot pads (4), and the upper side of the placement plate (1) is provided with four clamping rods (705), the four clamping rods (705) are divided into two at the front of the upper side of the placement plate (1) and two at the rear of the upper side of the placement plate (1), and the clamping rods (705) at the front of the upper side of the placement plate (1) and the clamping rods (705) at the rear of the upper side of the placement plate (1) are symmetrically arranged, and the upper ends of the clamping rods (705) are bent toward the middle of the placement plate (1).

4. A vertical small steam turbine AC lubricating oil pump motor test support according to claim 3, characterized in that: The load adjustment mechanism (8) comprises a load shaft (801), a vibration test mechanism (802) is arranged in the middle of the load shaft (801), a slide rail (803) is fixedly connected to the outer wall of the left end of the load shaft (801), a slide groove penetrating front and rear is provided on the slide rail (803), an end of the slide rail (803) away from the load shaft (801) is fixedly connected to a motor (804), an output end of the motor (804) is fixedly connected to a threaded rod (805), an end of the threaded rod (805) away from the motor (804) penetrates the slide rail (803) and is rotatably connected to a side of the inner wall of the slide groove away from the motor (804) through a bearing, a counterweight block (806) is slidably connected to the inner wall of the slide groove, a threaded hole is provided in the middle of the counterweight block (806), and the inner wall of the threaded hole on the counterweight block (806) is threadedly connected to the outer wall of the threaded rod (805).

5. A vertical small steam turbine AC lubricating oil pump motor test support according to claim 4, characterized in that: The upper side of the load shaft (801) and the lower side of the load shaft (801) are both provided with slide rails (803), and the counterweight block (806) can slide relative to the slide rails (803) under the drive of the motor (804) and the threaded rod (805).

6. A vertical small steam turbine AC lubricating oil pump motor test support according to claim 5, characterized in that: The vibration testing mechanism (802) comprises a slide seat (201), the lower side of the slide seat (201) is slidably connected to the upper surface of the placement plate (1), the upper side of the slide seat (201) is fixedly connected to a spring (202), the upper side of the spring (202) is fixedly connected to a support block (203), the inner wall of the support block (203) is rotatably connected to the outer wall of the load shaft (801) via a bearing, the front side of the outer wall of the spring (202) is fixedly connected to a conductive cylinder (204), the upper end of the conductive cylinder (204) is fixedly connected to a first contact (205), the front side of the slide seat (201) is fixedly connected to a resistor rod (206), the lower end of the resistor rod (206) is fixedly connected to a second contact (207), and the upper end of the resistor rod (206) is inserted into the interior of the conductive cylinder (204).

7. A vertical small steam turbine AC lubricating oil pump motor test support according to claim 6, characterized in that: The first contact (205) is electrically connected to a power source, the second contact (207) is electrically connected to a control module (6), and the display screen (5) is electrically connected to the control module (6).

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