Special tool for maintaining central air conditioner screw machine and centrifugal machine

Abstract

The utility model relates to the technical field of maintenance of central air conditioners, in particular to a special tool for maintenance of a screw machine and a centrifugal machine of a central air conditioner, which enables equipment to have moving capacity through a walking device, provides a temporary power supply for electrical appliances of the equipment, fixes two ends of a maintenance workpiece through a transverse moving device matched with a fixing device, and improves maintenance efficiency. The height of the workpiece to be maintained can be adjusted in cooperation with a lifting device, meanwhile, the workpiece is rotated according to the maintenance requirement, and the practicability of the device is improved; comprising a walking device, a transverse moving device, a lifting device and a fixing device, the transverse moving device is installed on the walking device, the lifting device is installed on the transverse moving device, and the fixing device is installed on the lifting device.

Description

Technical Field

[0001] The utility model relates to the technical field of central air-conditioning maintenance, in particular to a special tool for maintaining a central air-conditioning screw machine and a centrifuge. Background Art

[0002] The screw compressor of a central air conditioner completes the process of sucking, compressing, and discharging refrigerant gas by changing the volume of the crescent-shaped space formed between the rotating screw and the fixed casing. This compressor uses very few parts to achieve minimal wear and tear, and has a long service life. Centrifugal compressors compress refrigerant gas through high-speed rotating impellers to increase the refrigerant gas pressure. Centrifugal units generally have a large cooling capacity and a high energy efficiency ratio.

[0003] The Chinese utility model patent application number CN202220791574.5 in the prior art relates to an air conditioner maintenance panel, which includes a mounting plate, a through hole, a main line trough, a placement slot, a pressure cover, a card slot and a positioning slot, etc., which can increase the distance between the maintenance plate body and the mounting plate, and the maintenance plate body protrudes outward, and then fixes the state between the column and the sleeve through a limiting mechanism, thereby fixing the maintenance plate body and facilitating air conditioner maintenance.

[0004] However, the above device is not applicable to the maintenance of central air-conditioning screw machines or centrifuges in actual use. When repairing and cleaning screw machines and centrifuges, it is often necessary to disassemble the internal parts. Due to the large mass of the machine itself, a lot of physical strength is required to turn the equipment over, which increases the difficulty of maintenance. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a special tool for repairing central air-conditioning screw machines and centrifuges, which improves the practicality of the device and enables the equipment to have mobility and provides temporary power supply for the electrical appliances of the equipment. The two ends of the repair workpiece are fixed by a transverse movement device in conjunction with a fixing device, and the height of the repair workpiece can be adjusted in conjunction with a lifting device. At the same time, it can be rotated according to the repair needs, thereby improving the practicality of the device.

[0006] The utility model discloses a special tool for repairing central air-conditioning screw machines and centrifuges; it comprises a traveling device, a transverse moving device, a lifting device and a fixing device, the transverse moving device is installed on the traveling device, the lifting device is installed on the transverse moving device, and the fixing device is installed on the lifting device; the traveling device enables the equipment to have mobility and provides temporary power supply for the electrical appliances of the equipment; the transverse moving device cooperates with the fixing device to fix the two ends of the repair workpiece, and can cooperate with the lifting device to adjust the height of the repair workpiece, and at the same time it can be rotated according to the repair needs, thereby improving the practicality of the device.

[0007] Preferably, the walking device includes a load-bearing plate, running wheels and a battery, multiple sets of running wheels are installed on the lower end surface of the load-bearing plate, and a battery is installed in the middle of the lower end surface of the load-bearing plate; the multiple sets of running wheels cooperate with the load-bearing plate to drive the entire equipment to move, which facilitates the transportation of the equipment, and the battery provides temporary power for all electrical appliances of the equipment, so that the equipment has the ability to be repaired outdoors and repaired when the power is off, thereby improving the practicality of the device.

[0008] Preferably, the transverse movement device includes a sliding limit groove, a lead screw, a reduction motor and a transverse movement platform. Two groups of sliding limit grooves are respectively provided on the left and right upper end surfaces of the supporting plate. A lead screw is installed in the sliding limit groove. Two groups of reduction motors are respectively installed on the front and rear side surfaces of the supporting plate. The output ends of the four groups of reduction motors are respectively connected to the four groups of lead screws. The transverse movement platform is installed in the sliding limit groove and connected to the lead screw by bolts; turning on the reduction motor transmits power to the lead screw to drive the lead screw to rotate, thereby cooperating with the nut to drive the transverse movement platform to move forward and backward, so that the equipment can adapt to workpieces of different lengths, thereby improving the adaptability and practicality of the device.

[0009] Preferably, the lifting device includes a first electric cylinder, a pressure switch and a fixed frame, the first electric cylinder is installed on the upper end surface of the transverse platform, the pressure switch is installed on the movable end of the first electric cylinder, and a group of fixed frames are respectively provided on the front and rear sides of the upper side of the load-bearing plate, and the lower end surfaces of the fixed frames are respectively connected to the two groups of first electric cylinder movable ends corresponding to the lower sides thereof; the height of the fixed frame is changed by controlling the elongation of the first electric cylinder, thereby coordinating with the fixing device to change the height of the repaired workpiece, thereby facilitating the maintenance operation, and the pressure on the movable end of the first electric cylinder is monitored by the pressure switch to prevent lifting imbalance after a unilateral 0 first electric cylinder failure, and the first electric cylinder is controlled to stop extending when the pressure switch detects that the pressure is greater than a preset value, thereby improving the practicality and safety of the device.

[0010] Preferably, the fixing device includes a second electric cylinder, a support frame and a roller, the second electric cylinder is installed on the upper end surface of the fixing frame, the movable end of the second electric cylinder passes through the upper end surface of the fixing frame and extends to the inside of the fixing frame and is connected to the upper end surface of the support frame, a group of rollers are respectively installed on the left and right sides of the lower part of the support frame, and another group of support frames are installed on the lower end surface of the fixing frame; the two ends of the maintenance part are respectively placed in the fixing frame, and the upper and lower groups of support frames are fixed to the position of the maintenance part by controlling the extension of the second electric cylinder, and the maintenance part can be rotated on the equipment through the roller, which is convenient for multi-faceted maintenance and improves the practicality of the device.

[0011] Preferably, an amplitude sensor is also included. The amplitude sensor is installed on the side of the fixing frame, and the detection end of the amplitude sensor extends into the inside of the fixing frame; the rotational dynamic balance of some shaft parts is monitored by the amplitude sensor, which facilitates equipment fault detection and improves the practicality of the device.

[0012] Preferably, an LED light strip is also included, and inclined grooves are respectively provided on the left and right sides of the upper end surface of the supporting plate, and LED light strips are installed in the grooves; the LED light strips provide bottom lighting for the maintenance process, which is convenient for maintenance personnel to perform maintenance and observation on the bottom of the components, thereby improving the practicality of the device.

[0013] Compared with the existing technology, the beneficial effects of the present invention are: the equipment is made mobile through the walking device, and a temporary power supply is provided for the electrical appliances of the equipment; the two ends of the maintenance workpiece are fixed by the transverse movement device in conjunction with the fixing device, and the height of the maintenance workpiece can be adjusted in conjunction with the lifting device, and it can be rotated according to the maintenance needs, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a first axonometric structural diagram of the present invention;

[0015] Figure 2 This is a second axonometric structural diagram of the present invention;

[0016] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 4 It is a partial enlarged structural schematic diagram of the utility model;

[0018] Markings in the attached figure: 1. Loading plate; 2. Travel wheel; 3. Battery; 4. Sliding limit groove; 5. Screw; 6. Reducer motor; 7. Transverse platform; 8. First electric cylinder; 9. Pressure switch; 10. Fixed bracket; 11. Second electric cylinder; 12. Support bracket; 13. Roller; 14. Amplitude sensor; 15. LED light strip. DETAILED DESCRIPTION

[0019] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0020] Example

[0021] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The traverse device shown is installed on the walking device, the lifting device is installed on the traverse device, and the fixing device is installed on the lifting device;

[0022] First, according to the size of the repair part, the reduction motor 6 is turned on to transmit power to the screw 5 to drive the screw 5 to rotate, thereby cooperating with the nut to drive the transverse platform 7 to move forward and backward. Then, the two ends of the repair part are placed in the fixed frame 10 respectively. By controlling the extension of the second electric cylinder 11, the upper and lower support frames 12 are fixed in the position of the repair part. Then, the first electric cylinder 8 is controlled to extend to carry out the repair.

[0023] The walking device includes a supporting plate 1, walking wheels 2 and a battery 3. Multiple sets of walking wheels 2 are installed on the lower end surface of the supporting plate 1, and a battery 3 is installed in the middle of the lower end surface of the supporting plate 1.

[0024] The traverse device includes a sliding limit groove 4, a lead screw 5, a reduction motor 6 and a traverse platform 7. Two sets of sliding limit grooves 4 are respectively provided on the left and right sides of the upper end surface of the carrier plate 1. The lead screw 5 is installed in the sliding limit groove 4. Two sets of reduction motors 6 are respectively installed on the front and rear side surfaces of the carrier plate 1. The output ends of the four sets of reduction motors 6 are respectively connected to the four sets of lead screws 5. The traverse platform 7 is installed in the sliding limit groove 4 and connected to the lead screw 5 through bolts.

[0025] The lifting device includes a first electric cylinder 8, a pressure switch 9, and a fixed frame 10. The first electric cylinder 8 is installed on the upper end surface of the transverse platform 7, and the pressure switch 9 is installed on the movable end of the first electric cylinder 8. A set of fixed frames 10 are respectively provided on the front and rear sides of the upper side of the load-bearing plate 1. The lower end surfaces of the fixed frames 10 are respectively connected to the two movable ends of the first electric cylinders 8 on the lower sides thereof.

[0026] The fixing device includes a second electric cylinder 11, a support frame 12 and a roller 13. The second electric cylinder 11 is installed on the upper end surface of the fixing frame 10. The movable end of the second electric cylinder 11 passes through the upper end surface of the fixing frame 10 and extends into the interior of the fixing frame 10 to connect with the upper end surface of the support frame 12. A group of rollers 13 are respectively installed on the left and right sides of the lower part of the support frame 12. Another group of support frames 12 are installed on the lower end surface of the fixing frame 10.

[0027] The device further includes an amplitude sensor 14, which is mounted on the side of the fixing frame 10, and a detection end of the amplitude sensor 14 extends into the interior of the fixing frame 10;

[0028] The walking device enables the equipment to be mobile and provides temporary power for the equipment's electrical appliances. The transverse device cooperates with the fixing device to fix both ends of the maintenance workpiece, and can cooperate with the lifting device to adjust the height of the maintenance workpiece. At the same time, it can be rotated according to maintenance needs, thereby improving the practicality of the device.

[0029] The reduction motor 6, second electric cylinder 11, first electric cylinder 8, amplitude sensor 14, LED light strip 15 and battery 3 of the special tooling for repairing central air-conditioning screw machines and centrifuges of the utility model are purchased on the market. Technicians in this industry only need to install and operate them according to the accompanying instruction manual, without the need for creative work by technicians in this field.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A special tool for repairing central air-conditioning screw compressors and centrifuges; characterized in that: The invention comprises a traveling device, a transverse moving device, a lifting device and a fixing device, wherein the transverse moving device is installed on the traveling device, the lifting device is installed on the transverse moving device, and the fixing device is installed on the lifting device; the fixing device comprises a second electric cylinder (11), a support frame (12) and a roller (13); the second electric cylinder (11) is installed on the upper end surface of the fixing frame (10); the movable end of the second electric cylinder (11) passes through the upper end surface of the fixing frame (10) and extends to the inside of the fixing frame (10) and is connected to the upper end surface of the support frame (12); a group of rollers (13) are respectively installed on the left and right sides of the lower part of the support frame (12); another group of support frames (12) are installed on the lower end surface of the fixing frame (10).

2. A special tool for repairing central air-conditioning screw machines and centrifuges as claimed in claim 1, characterized in that: The walking device comprises a bearing plate (1), walking wheels (2) and a storage battery (3); a plurality of groups of walking wheels (2) are mounted on the lower end surface of the bearing plate (1); and a storage battery (3) is mounted in the middle of the lower end surface of the bearing plate (1).

3. A special tool for repairing central air-conditioning screw compressors and centrifuges as claimed in claim 2, characterized in that: The transverse movement device comprises a sliding limit groove (4), a lead screw (5), a reduction motor (6) and a transverse movement platform (7). Two groups of sliding limit grooves (4) are respectively provided on the left and right upper end surfaces of the carrier plate (1). The lead screw (5) is installed in the sliding limit groove (4). Two groups of reduction motors (6) are respectively installed on the front and rear side surfaces of the carrier plate (1). The output ends of the four groups of reduction motors (6) are respectively connected to the four groups of lead screws (5). The transverse movement platform (7) is installed in the sliding limit groove (4) and is connected to the lead screw (5) through bolts.

4. A special tool for repairing central air-conditioning screw compressors and centrifuges as claimed in claim 3, characterized in that: The lifting device comprises a first electric cylinder (8), a pressure switch (9) and a fixed frame (10); the first electric cylinder (8) is mounted on the upper end surface of the transverse platform (7); the pressure switch (9) is mounted on the movable end of the first electric cylinder (8); a group of fixed frames (10) are respectively arranged on the front and rear sides of the upper side of the carrier plate (1); the lower end surfaces of the fixed frames (10) are respectively connected to the two movable ends of the first electric cylinders (8) corresponding to the lower side thereof.

5. A special tool for repairing central air-conditioning screw compressors and centrifuges as claimed in claim 4, characterized in that: It also includes an amplitude sensor (14), which is installed on the side of the fixing frame (10), and a detection end of the amplitude sensor (14) extends into the interior of the fixing frame (10).

6. The special tool for repairing central air-conditioning screw compressors and centrifuges according to claim 2, characterized in that: It also includes an LED light strip (15). The upper end surface of the carrier plate (1) is provided with inclined grooves on the left and right sides, and the LED light strip (15) is installed in the grooves.

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